Consulta: year:"2020"
Registros recuperados: 5.272
Máximo de registros impressos: 2500
Data/hora: 31/10/2024 20:18:54

CARBON, NITROGEN, AND ORGANIC MATTER OF SOIL IN AN INTEGRATED CROP-LIVESTOCK SYSTEM
Provedor de dados: 196
Autores: Mattei, Eloisa; Rabello de Oliveira, Paulo Sérgio; Rampim, Leandro; Rocha de Moraes Rego, Carlos Augusto; Piano, Jeferson Tiago; Carpiski Sampaio, Marinez.
This study aimed to evaluate the effect of the integrated crop-livestock system on the contents and stocks of total organic carbon, total nitrogen, and soil organic matter. The experiment was carried out between April 2016 and February 2017, in a randomized block design in a strip-block scheme, with additional control treatment (fallow) and four repetitions. The treatments consisted of two densities of oat sowing (40 and 60 kg ha-1) in strips A and different grazing frequencies (without grazing - WG, one grazing - 1G, and two grazing - 2G) in strips B, besides fallow as a control treatment. The determinations of the contents of total organic carbon (TOC), total nitrogen (TN), and organic matter (SOM) were carried out in the soil layers of 0-5, 5-10, and...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4526

ALLEVIATION OF SOIL SALINITY ON PHYSIOLOGICAL AND AGRONOMIC TRAITS OF RICE CULTIVARS USING Arbuscular mycorrhizal fungi AND Pseudomonas STRAINS UNDER FIELD CONDITIONS
Provedor de dados: 196
Autores: Norouzinia, Firouz; Ansari, Mohammad Hossein; Aminpanah, Hashem; Firozi, Saeed.
Rice cultivation in Iran has a special place and its cultivation area is about 640,000 ha. Soil salinization is one of the most factor in reducing of grain yields and cultivation of paddy rice. Currently, half of Iran's cultivated lands (9.5 million ha) are affected by salinity, which has a major impact on crop yields. For this purpose, an field experiment conducted with the use of microorganisms (Pseudomonas putida strain S34, Pseudomonas fluorescens strain R167, Arbuscular mycorrhizal fungi (AMF) (Rhizophagus irregularis), co-inoculation of P.putida + P.fluorescens + AMF, and a non-inoculated treatment as control) on two rice cultivars (Hashemi and Gilane) in saline and normal soil in north of Iran during the 2018 and 2019. The results showed...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4042

GROWTH AND DEVELOPMENT OF BELL PEPPER CROP IRRIGATED WITH MAGNETICALLY-TREATED WATER
Provedor de dados: 196
Autores: Lorenzoni, Marcelo Zolin; Rezende, Roberto; Souza, Alvaro Henrique Cândido de; Seron, Cassio de Castro; Gonçalves, Antônio Carlos Andrade; Saath, Reni.
This study aimed to evaluate the benefits of irrigation with magnetically-treated water and replacement depths based on ETc, in plant growth and development of bell pepper grown in a protected environment in two cultivation seasons. The experiment was carried out in a protected environment, in the Centro Técnico de Irrigação (CTI), at Universidade Estadual de Maringá (UEM), in Maringá - PR. Two experiments were performed: summer (2017-2018) and winter-spring (2018). The experimental design adopted was randomized blocks in factorial scheme 3 x 2 (six treatments) with four replications in the summer season and 2 x 2 (four treatments) with six replications in the winter-spring season. The first factor consisted of water replacement depths (50, 75 and 100% of...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4173

CHEMICAL PROPERTIES AND PHYSICAL FRACTIONS OF ORGANIC MATTER IN OXISOLS UNDER INTEGRATED AGRICULTURAL PRODUCTION SYSTEMS
Provedor de dados: 196
Autores: de Moraes Rego, Carlos Augusto Rocha; Oliveira, Paulo Sérgio Rabello de; Piano, Jeferson Tiago; Egewarth, Jonas Francisco; Egewarth, Vanessa Aline; López de Herrera, Juan; Gonçalves Junior, Affonso Celso.
The main cause of decreased soil fertility and soil organic matter content is intensive crop farming with inadequate management. This study aimed to evaluate soil chemical properties, total organic carbon content, physical granulometric fractions (particulate organic carbon and mineral-associated organic carbon), carbon stocks, and carbon management indices of oxisols in different integrated agricultural production systems (IAPSs) with reference to values in a haymaking area and native forest. The experiments were performed using completely randomized design, considering nine differently managed areas, including seven IAPSs and two reference areas (haymaking area and native forest); four soil samples from the 0.00-0.05, 0.05-0.10, and 0.10-0.20 m layers...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4747

CONTROL OF WEEDS IN THE JAPANESE PUMPKIN HYBRIDS
Provedor de dados: 196
Autores: Guerra, Antonia Mirian Nogueira de Moura; Silva, Maria Gabriela Magalhães; Evangelista, Régila Santos; Santos, Edeilton Borges dos; Rodrigues, Ítalo José da Silva.
The Japanese pumpkin known as "Tetsukabuto" is the result of crossing selected lines of squash. Squashes are highly susceptible to weed interference due to slow initial growth, requiring more considerable attention as to their control. Studies focusing on the losses caused by weeds to Japanese pumpkin hybrids are scarce. Thus, this study aimed to evaluate the influence of weed control on the fruit yield of Japanese pumpkin hybrid cultivars. A randomized block design with four replications in a 3x4 factorial scheme was used. Three cultivars (Corina F1, Triunfo F1, and Takayama F1) and four weed control periods, without weed control, weed control from 0 to 30 and from 0 to 60 days after transplanting (DAT), and weed control throughout the crop cycle...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4290

INFLUENCE OF COVERAGE BASED ON BIOPOLYMERS ON THE MATURATION OF CAGAITA (Eugenia dysenterica DC.)
Provedor de dados: 196
Autores: Braz, Aline Jordane; Nascente, Letícia de Paula; Corrêa, Nayara Canedo; Rocha, Rodrigo de Almeida; Barbosa de Souza, Eli Regina; Siqueira, Ana Paula Silva.
The cagaita is a native fruit of the cerrado, of high perishability, and for postharvest conservation of the fresh fruit, methods are used to increase its life cycle. In the present study, edible coatings are used, a technique that aims to control the loss of mass through transpiration reduces gas exchange, increases the shelf-life, improves the appearance, preserves the structural integrity and mechanical properties. The study aims to evaluate the influence of coatings based on biopolymers on the maturation of cagaita during storage. The factorial scheme 3 x 4 was used, with three treatments - without coating, polysaccharide coating and protein coating, four evaluation points - with an interval of 2 days, stored at 25 ºC. The fruits were submitted to...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3334

QUALITY OF CAMBUCI PEPPER SEEDLINGS IN RESPONSE TO THE APPLICATION OF NUTRIENT SOLUTIONS
Provedor de dados: 196
Autores: Nordi, Nicholas Taborda; Aires, Eduardo Santana; Alves, Thatiane Nepomuceno; Perisato, Samara Moreira; Cardoso, Antonio Ismael Inácio.
One of the main stages in the production system of a crop is the production of quality seedlings since it influences the plants' final performance in the field and their production. The study aimed to evaluate different nutrient solutions in the production of Cambuci pepper seedlings. The design used was a complete randomized design, with six treatments corresponding to the nutrient solutions proposed for the pepper crop by Castellane and Araújo, Claudio Roberto, Hoagland, and Arnon, besides the commercial products Plenan® and Biobokashi®, and a control treatment without fertilization, with six replications. The final evaluation was carried out 45 days after sowing. The following variables were analyzed: stem diameter, plant height, leaf dry matter, shoot...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4880

INITIAL DEVELOPMENT OF COFFEE SEEDLINGS IN THE PRESENCE OF PLANT EXTRACTS
Provedor de dados: 196
Autores: Costa, Bruna Penha; Duarte Júnior, José Barbosa; Rinaldi, Luanna Karoline; de Moraes Rego, Carlos Augusto Rocha; Stangarlin, José Renato.
The coffee plant can grow together with different plants, but the presence of allelochemicals can affect the crop post-planting. This study aimed to evaluate the early growth of coffee seedlings following treatment with plant extracts from different botanical families. The experimental design used randomized blocks with four trials, in a 7 × 2 factorial scheme; the first factor consisted of aqueous extracts from six species: canola, crotalaria, brachiaria, sunflower, wheat, and lupine; water was used as the control. The second factor comprised of different botanical parts of the aforementioned six species of plant. The extracts were diluted to 5% concentration and were applied at a dose of 20 mL per plant. The agronomic variables analyzed were plant height...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4500

MORPHOLOGICAL ANALYSIS AND ACCUMULATION OF NUTRIENTS IN Peltophorum dubium (Spreng.) Taub. SEEDLINGS PRODUCED IN ORGANIC SUBSTRATES WITH DIFFERENT PROPORTIONS
Provedor de dados: 196
Autores: Melo Nunes Astolfi, Angelica Christina; da Silva Mota, Lucas Junior; Pontes, Montcharles da Silva; Clemente, Leyzinara Zenteno; Santiago, Etenaldo Felipe; de Carvalho, Laércio Alves; Motta, Ivo de Sá.
Environmental conservation and regeneration actions must consider plant species that add value by restoring structural and functional aspects of the ecosystem. The forest species, Peltophorum dubium, has several characteristics that make its use viable in projects of restoration of degraded areas, making it necessary to study the species' responses to different cultivation environments. Thus, 500 seeds were selected and sown in vermicompost substrates prepared with different proportions of cattle rumen content (CR) and sugarcane bagasse (SB) (V1 - 60% CR x 40% SB / V2 - 50% CR x 50 % SB / V3 - 40% CR x 60% SB / V4 - 70% CR x 30% SB) and in an commercial substrate (Plantmax®). At 79 days after sowing, 20 seedlings per treatment were removed; they were...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4093

INSECT RICHNESS IN DUNG PATCHES OF CATTLE RAISED IN TWO LIVESTOCK SYSTEMS
Provedor de dados: 196
Autores: Gusmão, Marcos Rafael; Oliveira, Marcia Cristina de Sena; Nicodemo, Maria Luiza Franceschi; Pezzopane, Jose Ricardo Macedo.
The negative impact of livestock breeding on the environment has been mitigated through the combination of pastures and trees, characterizing the silvopastoral systems (SPS), an alternative to conventional pasture systems (CPS). The SPS provides environmental services, particularly the recovery of degraded areas and carbon sequestration. Furthermore, the complexity of the SPS can improve other environmental services, for example, enhance biodiversity and reduce pests through biological control. However, it is not clear the relationship between microclimate, pasture, trees, cattle, and invertebrate present in this environment. The purpose of this research was to characterize the macrofauna and determine the richness and abundance of invertebrates associated...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4033

DENDROMETRIC CHARACTERISTICS AND BASIC WOOD DENSITY OF EUCALYPTUS CLONES IN DIFFERENT SPACING
Provedor de dados: 196
Autores: Tavares, Ana Paula Cardoso; Soares, Thelma Shirlen; Cruz, Edmilson Santos.
This study aimed to analyze the effect of two planting spacing on dendrometric characteristics and basic wood density of eucalyptus clones. The experiment in the municipality of Jataí-GO, Brazil, used a randomized complete block design with three replications, in which the spacing (3.0 m x 2.0 m and 3.0 m x 3.0 m) were allocated to the plots and the clones (3335, 3336 and 3487) in the subplots. Diameter at breast height (dbh), total height (HT), total volume (VT), basic density (db), stem biomass (BS), leaf and branch biomass (BLB) and total biomass (BT) were evaluated. The data were submitted to analysis of variance, followed by the Tukey test for comparison of means at the 5% probability level. It was found that the dbh and VT characteristics were not...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4355

COVER CROPS CHANGE THE PHYTOSOCIOLOGY OF WEEDS AND THE BANANA YIELD
Provedor de dados: 196
Autores: Ávila, Jorgiani; Andrade, Maria Gabriela Oliveira; Vendruscolo, Eduardo Pradi; Martins, Jordana Dias; Lima, Sebastião Ferreira.
This work aimed to evaluate the phytosociology of weeds and the fruit yield of banana (cv. Tropical) in different soil coverings. The experimental design used was randomized blocks, with eight treatments and three replications. The treatments consisted of sowing of Canavalia ensiformis, Cajanus cajan, Crotalaria juncea, Stylosanthes 'Campo Grande', Crotalaria spectabilis, Sorghum bicolor, and Phaseolus lunatus between the rows of the banana trees. A control treatment was also used without cover crops. Weed phytosociology was evaluated in four treatments. The number of hands per bunch, the number of fruits per hand, the number of fruits per bunch, and the fruit yield were estimated in all treatments. In the phytosociological survey, 23 species were...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3349

PERFORMANCE OF Metarhizium rileyi APPLIED ON Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae)
Provedor de dados: 196
Autores: de Souza Loureiro, Elisângela; de Souza Tosta, Ricardo Alexandre; Mingotti Dias, Pamella; Amorim Pessoa, Luis Gustavo; Mendes de Oliveira Neto, Francisco; Reis Devoz, Gabriel Luiz; Muchalak, Franciele.
This study aimed to evaluate the efficiency of different strains of the entomopathogenic fungus Metarhizium rileyi in the control of Helicoverpa armigera caterpillars in laboratory conditions. Caterpillars between the 2nd and 3rd instar were used, ranging in size from 0.7 to 1.2 cm length. The experimental design used was completely randomized, composed of five treatments and five replications, each one consisting of 50 insects. The treatments T1 - Control (sterile distilled water), T2 - M. rileyi UFMS 02 strain, T3 - M. rileyi UFMS 03 strain, T4 - M. rileyi UFMS 06 strain, and T5 - M. rileyi UFMS 07 strain were evaluated. All treatments were applied (2 mL/insect) in suspensions of the order of 1.0 × 109 conidia mL-1, and Tween 80® was added in all...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4208

MINERAL, PROTEIN, AND ENERGY SUPPLEMENTATION IN HEIFERS IN A NATIVE PAMPA BIOME PASTURE DURING WINTER
Provedor de dados: 196
Autores: Malaguez, Edgard Gonçalves; Gonçalves, Thaís Lopes; Giudice, Bibiana Bastos; Oaigen, Ricardo Pedroso; Castagnara, Deise Dalazen; de Azevedo, Eduardo Bohrer.
This study evaluated the effect of different supplements during winter on the performance of heifers in a native Pampa biome field using deferred grazing and evaluated the economic viability of each treatment. A total of 124 heifers from Brangus and Angus breeds, 18 months old, and with an average weight of 301.6 kg were included in this experiment. The treatments applied were: control with only native grassland, native grassland + 80P mineral salt treatment (MS), native grassland + protein salt treatment (PS), and native grassland + protein/energy salt treatment (PES). Besides the productive, botanical, and bromatological characteristics of the pasture, the average daily gain and the live weight gain per hectare were evaluated. The economic viability of...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3519

TAMARIND TREE SEEDLINGS IN PROTECTED ENVIRONMENTS AND SUBSTRATE
Provedor de dados: 196
Autores: Silva, Anne Karoline da; Costa, Edilson; Curi, Thayla Morandi Ridolfi de Carvalho; Salles, Josiane Souza; Binotti, Flávio Ferreira da Silva; Binotti, Eliana Duarte Cardoso; Vieira, Gustavo Haralampidou da Costa; Zoz, Tiago.
This study aimed to evaluate the formation of tamarind tree seedlings in different protected environments and substrates. Five protected environments were used and substrates using combinations of different proportions of humus, cattle manure, vermiculite, and cassava stems. The environments with screens and the environments with polyethylene films were conducive to the emergence of the tamarind seedlings. All the substrates presented adequate conditions for the emergence of seedlings in these environments. The environment covered with bacuri straw was not favorable to the emergence of the tamarind seedlings. The substrates containing cattle manure provided the best conditions for emergence in the environment covered with bacuri straw. The greenhouses and...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4838

PRECISION POULTRY FARMING: MAPPING ATTRIBUTES THAT INFLUENCE LAYING BIRDS IN NOVA ANDRADINA/MS
Provedor de dados: 196
Autores: Sorano, Leticia Almeida; Lima, Maycom Dias de; Suszek, Grazieli; Royer, Ana Flávia Basso.
Precision poultry farming is related to effective monitoring of production stages and product quality. This work evaluated the influence of temperature, air humidity, and luminosity variables on chicken egg production and quality (internal and external), under uncontrolled environment and natural lighting, using precision poultry techniques. One hundred and sixty birds of Embrapa 51 line, reared in cages, were assessed with 24, 30, 50, and 70 weeks of life. Values of temperature, relative humidity, luminosity, and the samples for productivity and egg quality determination were collected in predefined locations in a poultry house belonging to IFMS, Nova Andradina/MS Campus. Spatial maps were generated using the inverse distance weighted interpolation (IDW)....
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4961

ALLELOPATHIC EFFECT OF Sorghum bicolor AND Digitaria insularis ON GERMINATION AND INITIAL DEVELOPMENT OF CANOLA
Provedor de dados: 196
Autores: Campos, Thiago Souza; Sousa, Ane Gabriele Vaz; Rego Junior, Jaime Santos do; Sousa, Westefann dos Santos; Benett, Cleiton Gredson Sabin; Arruda, Natália.
Agriculture depends on biotic and abiotic factors, and one of them is allelopathy, defined as the chemical interference that one plant has on others, which can negatively affect germination. The objective of this work is to evaluate the allelopathic effects of Sorghum bicolor and Digitaria insularis on seed germination and initial development of canola seedlings (Brassica napus L.). A completely randomized design was used in a 2x5 factorial scheme (two extracts: D. insularis and S. bicolor) and five concentrations (0, 25, 50, 75, and 100%), with four replicates of fifty seeds, the plot being constituted by a 'gerbox' box containing 50 seeds evenly distributed. The variable analyzed were germination percentage (G), abnormal seedlings (AS), dead seeds (DS),...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4230

OPERATIONAL PERFORMANCE OF AN AGRICULTURAL TRACTOR UNDER DIFFERENT TIRE INFLATION PRESSURES IN THE SUBSOILING OPERATION
Provedor de dados: 196
Autores: Lopes, Arthur Gabriel Caldas; Correia, Tiago Pereira da Silva; Lima, Gabriel Pastor de Barros; Souza, Isabela Dias de; Taveira, Wesley Matheus Cordeiro Fulgêncio; Pereira, Gabriela Greice.
For the agricultural tractor's best performance, it must be correctly adapted to the job. Among other factors, the adequacy of tire inflation pressure is one of the most important and may influence the operation's efficiency and productivity. This study aimed to evaluate an agricultural tractor's operational performance with different tire inflation pressures in the subsoiling operation. The study was carried out in an experimental area of the Agricultural Machinery and Mechanization Laboratory of the experimental farm “Água Limpa,” belonging to the University of Brasília. The experimental design used was in randomized blocks with the following values, 206.8 kPa (30 psi), 137.9 kPa (20 psi), and 68.9 kPa (10 psi), of inflation pressure for agricultural...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4878

INTERFERENCE OF ALDICARB IN INFECTIVE FORMS OF Meloidogyne incognita AND ITS EFFECTS ON REPRODUCTION IN SOYBEAN
Provedor de dados: 196
Autores: da Silva, Esdras Henrique; Campos, Vicente Paulo; Rocha, Fernando da Silva; Zeviani, Walmes Marques; Terra, Willian César; Rigitano, Renê Luís de Oliveira.
The effect of aldicarb on mortality, motility, and reproduction of M. incognita in soybean was studied. The mortality of second-stage juveniles (J2) in aldicarb solution (5 and 50 μg mL-1) was only high at 20 days of exposure, being higher in the concentration of 50 μg mL-1 and lower in control (water). Motility was inversely proportional to the exposure time, and at 20 days of incubation, the number of J2 mobiles was statistically equal for both concentrations evaluated. There was a reduction inversely proportional to the number of galls and eggs per gram of root according to the J2 incubation time in water and aldicarb (5, 10, and 20 days). J2, when incubated in 50 μg mL-1 aldicarb for 5 and 10 days, always provided the same values regarding the number...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4367

PHOTOSYNTHETIC EFFICIENCY OF TOMATO PLANTS SUBMITTED TO CALCIUM SILICATE APPLICATION
Provedor de dados: 196
Autores: Coutinho, Pablo Wenderson Ribeiro; Echer, Márcia de Moraes; Guimarães, Vandeir Francisco; Lana, Maria do Carmo; Inagaki, Adriano Mitio; Brito, Tauane Santos; Alves, Thatiane Nepomuceno.
The objective was to evaluate the effect of calcium silicate on the chlorophyll content and gas exchange of two tomato hybrids. The design used was in randomized blocks in a 2x5 factorial scheme, with four replications. The first factor was composed of two tomato hybrids: Ivety and Natália, and the second factor was composed of five doses of calcium silicate (0, 150, 300, 450, and 600 kg ha-1), applied to the substrate before planting the seedlings. Gas exchange: net CO2 assimilation rate (A), leaf transpiration rate (E), stomatal conductance (gs), internal CO2 concentration (Ci), water-use efficiency (WUE), intrinsic efficiency water use (iWUE), and instant carboxylation efficiency (ACi); SPAD index and the levels of chlorophylls a, b, and total were...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4495

BIOECONOMIC PERFORMANCE OF A FEEDLOT BULL WITH DIFFERENT GENETIC GROUPS
Provedor de dados: 196
Autores: da Silva Maia, Janaína Teles; Gonçalves, Thaís Lopes; David, Guilherme De; Domingues, Felipe Nogueira; Oaigen, Ricardo Pedroso.
Livestock systems require a thorough analysis of zootechnical and financial indicators. In this sense, the objective of this study was to evaluate the bioeconomic performance of feedlot bulls with different genetic groups in 2012 and 2013. The experiment was carried out on a farm in Paragominas, State of Pará. The confined animals belonged to the Nellore (NE), ½ Angus ½ Nellore (AN) and ½ Charolais ½ Nellore (CH) breeds. The indicators analyzed were the cost of production and economic indicators. Additionally, zootechnical indicators were evaluated, being considered NE, AN, and CH as treatments in a completely randomized design. The financial results of the total production cost were R$ 118,493.21 in 2012, and R$ 111,166.35 in 2013, and the profitability...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4578

RELATIVE CHLOROPHYLL INDEX OF MAIZE AND SOYBEAN ACCORDING TO WEATHER CONDITIONS AT DIFFERENT TIMES OF DAY
Provedor de dados: 196
Autores: Silva, Luciana Maria da; Oliveira, Lucas Robson; Rodrigues, Fabrício; Benett, Katiane Santiago Silva; Benett, Cleiton Gredson Sabin.
The present study aimed to identify the best day time to evaluate the relative chlorophyll index in maize and soybean crops as a function of weather conditions. The experiments were conducted in the 2018/2019 harvest, in January and February, in the experimental area of the State University of Goiás, Ipameri University Unit, in Ipameri-GO. A completely randomized design with three replications and 40 plants per plot was used. The measurements of relative chlorophyll index at 7:00, 10:00, 13:00, 16:00, and 19:00, at the maize stage R1 (silking) and soy stage R2 (full bloom), were evaluated. The replications consisted of alternating days over seven days. The relative chlorophyll index, leaf temperature, air temperature, and relative humidity, and light...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5058

AGROCLIMATIC RISK ZONING FOR GUAVA (Psidium guajava L.) IN PARANÁ RIVER BASIN 3
Provedor de dados: 196
Autores: Caldana, Nathan Felipe da Silva; Nitsche, Pablo Ricardo; Martelócio, Alan Carlos; Ferreira, Luiz Gustavo Batista; Caramori, Paulo Henrique; Martins, Jorge Alberto.
Fruticulture constitutes an important sector of the Brazilian agricultural industry. Despite technological and scientific advances, climate is still the most important variable defining crop productivity. Because of this, agroclimatic zoning should be one of the first factors to consider when starting to plant a particular crop. The objective of this work was to conduct climate risk zoning for guava (Psidium guajava L.) in Paraná river basin 3, Paraná, Brazil, using meteorological data from 43 stations collected between 1976 and 2018. The climate risk analysis was based on the climatic factors that impact the species, such as rainfall, annual water deficit, average annual temperature, coldest month temperature, and risk of frost. The findings of this study...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4025

DEFICIT IN STATIC GRAIN STORAGE CAPACITY IN THE STATE OF GOIÁS IN THE 2016/17 HARVEST
Provedor de dados: 196
Autores: da Silva Berti, Mariana Pina; guimaraes, André Felippe Monteiro; Arruda, Natalia; Berti, Christian Luis Ferreira.
The Central-West region has been highlighted as the largest agricultural center in the country, accounting for 42% of national grain production. Goiás State represented an amount of 18.9 million tons in the last harvest. Despite the large production, a problem which affects the negotiations and the quality of the harvested grains is storage. A static capacity of 20% higher than grain production is recommended. The objective of this work was to evaluate the storage capacity of grains in the State of Goiás and their respective mesoregions using a comparison with the agricultural production of the Center-West region. The deficit in the static storage capacity of grain in Goiás for the 2016/17 harvest was 25.17% in relation to grain production, since the...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3124

INCREASING DOSES OF CATTLE MANURE FOR ORGANIC CHILI PEPPER PRODUCTION
Provedor de dados: 196
Autores: Ribeiro, João Victor Silva; Semensato, Leandra Regina; Vendruscolo, Eduardo Pradi.
There is a contemporary trend of change in the agricultural sector, aiming at the use of ecologically friendly inputs. This trend can be seen by the constant increase in the demand for organic products. However, as with other technologies, there is a need for studies to evaluate the effectiveness of its use. The present study aimed to evaluate the effects of the application of increasing doses of cattle manure on the development and productivity of chili peppers. The treatments consisted of increasing doses of cattle manure (0; 5; 10; 15; 20 Mg ha-1). The variables plant height, stem diameter, number of plant leaves and length, diameter, and fruit yield were evaluated. It was found that, with the maximum amount of cattle manure, there was an increase of...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5158

HYDRO-MICROBIOLOGICAL ATTRIBUTES OF THE SOIL IN EDGE OF SEASONAL SEMIDECIDUOUS FOREST FRAGMENT
Provedor de dados: 196
Autores: D'Abadia, Karolayne Lemes; Souza, Ane Gabriele Vaz; Silva, Gabriela Gomes da Silva Gomes da; Machado, Murilo Silva; Vale, Vagner Santiago do Vale Santiago do; Santos, Talles Eduardo Borges dos.
Native forests have been suffering changes, such as fragmentation and edge effect, and these have implications for the dynamics of carbon within the same fragment, differentiating vegetation and soil. In this way, the work aimed to evaluate the hydro-microbiological attributes of the soil in rainy and dry periods, as well as to indicate if there is an edge effect in a seasonal semideciduous forest fragment. The study was carried out in a forest fragment in the area of the State University of Goiás, Ipameri Campus, consisting of three transects divided into three blocks from the edge. Sampling was performed in two periods of the year, rainy and dry, to determine the gravimetric soil water content (UG), microbial biomass carbon (MBC), basal respiration (BR),...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3919

ENCAPSULATED BAITS CONTAINING ZINC SULFATE AND Trichoderma harzianum REDUCE FUNGAL GARDEN IN Atta sexdens COLONIES
Provedor de dados: 196
Autores: da Silva, Daniella Gonçalves; Lucena Júnior, Aldemir; Sarmento, Renato de Almeida; Santos Silva, Cynthia Lhourrana; Teles Tenório, Amanda Caroline; de Souza, Danival José; Melo, Márcio Silva.
The aim of the study was to test the effects of various concentrations of zinc sulfate (ZnSO4) on the radial growth of Trichoderma harzianum and Leucoagaricus gongylophorus in Petri dishes. In addition, we investigated the acceptance of baits containing live propagules of the encapsulated T. harzianum fungus and baits containing ZnSO4 by foraging leafcutter worker ants, A. sexdens, as well as their effects on the colonies of these ants. For the in vitro test, the design was completely randomized using ten replicates of a 2 × 7 factorial scheme: two species of fungi (T. harzianum and L. gongylophorus) and seven concentrations of ZnSO4. For bait acceptance tests, four treatments were used: baits without the mycelium and ZnSO4 (T1, control), baits containing...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5064

SOIL CARBON STOCK IN DIFFERENT USES IN THE SOUTHERN CONE OF MATO GROSSO DO SUL
Provedor de dados: 196
Autores: Martins, Luis Felipe Batista Nandi; Troian, Douglas; Rosset, Jean Sérgio; Souza, Camila Beatriz da Silva; Farias, Paulo Guilherme da Silva; Ozório, Jefferson Matheus Barros; Marra, Leandro Marciano; Castilho, Selene Cristina de Pierri.
This study aimed to assess the soil density (Sd) and the total organic carbon contents and stocks in different management systems and implementation times in the municipality of Iguatemi, MS, Brazil. A completely randomized design with four replications was applied to four areas: conventional tillage (CT), reformed pasture (RP), and degraded pasture (DP), in addition to a native forest (NF) area with no anthropic action. Disturbed and undisturbed soil samples were collected at depths of 0–0.05, 0.05–0.1, and 0.1–0.2 m. The determination of Sd and total organic carbon content (TOC) allowed calculating the carbon stock (Cstock), the stratification index (SI), and the carbon stock variation (ΔCstock), with subsequent multivariate analysis. The NF area...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5351

EFFECTS OF THE PROPAGULE SIZE ON THE TUBEROUS RHIZOME PRODUCTION AND PHYSICOCHEMICAL CHARACTERISTICS OF JERUSALEM ARTICHOKE
Provedor de dados: 196
Autores: Li, Meiling; Solano Mendoza, Juan David; Ming, Lin Chau.
As a crop that is rich in oligosaccharides, Jerusalem artichoke is considered one of the most promising plants for production because of its ability to survive in marginal lands, strong resistance to biotic and abiotic stresses, ease of conversion into biofuels, and use for food consumption. In the present study, the effects of propagule size on tuberous rhizome production and the physicochemical characteristics of Jerusalem artichoke were evaluated. Five propagule sizes of tuberous rhizome, 10 g (T1), 30 g (T2), 50 g (T3), 70 g (T4), and 90 g (T5), were used in a completely randomized experiment with 5 replicates and 11 plants per replicate. Harvesting was carried out 164 days after planting. The results showed that T1 resulted in the lowest emergence...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4231

PHYSICOCHEMICAL EVALUATION AND ANTIFUNGAL ACTIVITY OF ESSENTIAL OIL FROM Bauhinia forficata FLOWER Link (Fabaceae)
Provedor de dados: 196
Autores: Menezes Filho, Antonio Carlos Pereira de; Santos, Douglas Braga; Nascimento, Ronaldo Cezar; Oliveira, Marilene Silva; Castro, Carlos Frederico de Souza.
The essential oil of Bauhinia forficata collected in three locations, Rio Verde, Acreúna and Montividiu – GO, Brazil, had a satisfactory extraction with a yield of 0.038; 0.043 and 0.046%, and the relative density was 0.903; 0.901 and 0.903 g mL-1, respectively, and the positive solubility in ethanol. The percentage of mycelial inhibition in vitro of the essential oil mix was more efficient for the strains of S. sclerotiorum and A. flavus. Slight growth inhibition was observed for C gloeosporioides, which proved to be more resistant to essential oil concentrations used. The essential oil mix of Bauhinia forficata flowers proved to be a great option as an antifungal agent.
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4264

SOIL MULCHING AND DEFICIT IRRIGATION WITH WASTEWATER IN THE QUALITY OF ITALIAN ZUCCHINI
Provedor de dados: 196
Autores: Sena, Carolina Carvalho Rocha; Ferreira, Anamaria Achtschin; Evangelista, Zeuxis Rosa; Araujo, Kari Katiele Souza.
Conscious agricultural management, which aims to conserve natural resources, has been the target of contemporary agriculture. In this context, the reuse of water in deficit water depth in agricultural irrigation becomes a viable technique, and this work aimed to evaluate the effect of different irrigation depths with wastewater and soil mulching on the microbiological and postharvest characteristics of the Italian zucchini. The experiment was conducted in the field conditions with a randomized block design in a split-plot arrangement. Four irrigation depths (100%, 85%, 70%, and 55% of the estimated ETc from the Class A Evaporation Pan) and three types of soil mulching (rice husk, double-sided black and white polyethylene film, and uncovered soil) were...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4411

EFFECT OF SALINITY ON PHOTOSYNTHETIC AND ENZYMATIC ACTIVITIES AND TUBERIZATION YIELD IN THE GENOTYPE OF POTATO CULTIVAR AGRIA UNDER IN VITRO CONDITIONS
Provedor de dados: 196
Autores: Mousavi, Seyyed Nosrat; Ebadi, Mostafa; Khorshidi, Mahdi; Hokmabadi, Hossein; Masoudian, Nahid.
The aim of this study aimed to investigate the effect of salinity levels on physiological and biochemical properties and tuberization yield of potato, cultivar Agria, in MS culture medium. After preparation and cultivation of tuber, the lateral aerial buds were removed after a few months and cultured in MS medium. After that, healthy samples were prepared and induced at the above-mentioned salinity stress level and transferred to the culture medium. Two weeks later, an air sample was taken, and the physiological and biochemical properties studied in this study (photosynthetic pigments, proline, soluble sugars, anthocyanins, phenolic compounds, and the activity of some antioxidant enzymes) were measured. Finally, salinity stress assessment was evaluated and...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4028

IN VITRO COMPATIBILITY BETWEEN INSECTICIDES AND THE COMMERCIAL BIOINSECTICIDE AGREE® WG
Provedor de dados: 196
Autores: Loureiro, Elisângela de Souza; Pessoa, Luis Gustavo Amorim; Putrick, Thayla Christiane; Pantaleão, Ariane de Andréa; Dias, Pamella Mingotti.
Compatibility studies are essential for the integration and simultaneous use of chemical and biological pest control methods since they are necessary for an Integrated Pest Management (IPM) program. In this work, the aim was to evaluate the compatibility of insecticides used in soybean and cotton crops for pest control with Bacillus thuringiensis (Bt). The in vitro inoculation technique was used with B. thuringiensis var. kurstaki and B. thuringiensis var. aizawai, in culture medium containing the following insecticides: beta-cyfluthrin (Bulldock®), methomyl (Bazuka®), thiamethoxam + lambda-cialotrina (Engeo Pleno®), zeta-cypermethrin (Fury 200®), acetamiprid (Saurus®), bifenthrin + carbosulfano (Talisman®) and bifenthrin (Talstar®), in Petri dishes. The...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3597

GENERATING GENETIC DIVERSITY THROUGH DIALLEL CROSSES OF PROMISING POTATO CULTIVARS (Solanum tuberosum L.) AND STUDYING CULTIVAR HYBRIDS UNDER WATER DEFICIT STRESS
Provedor de dados: 196
Autores: Vesali, Mohammad Reza; Baradaran, Reza; Hassanpanah, Davoud; Seghatoleslami, Mohammad Javad.
This research was conducted from 2017 to 2018 to produce genetic diversity and examine selected suitable hybrids concerning certain agricultural traits under normal and water-deficit stress conditions in a Zarghostar-Arta company. In 2017, four potato cultivars, namely, Luca, Banba, Esprit, and Agria, were crossed as parents via mutual hybridization based on the diallel method guided by Griffing’s method III. About 8550 true potato seeds were produced, among which 3944 seeds were germinated, and 151 hybrids were selected for culturing on a split-plot with a randomized complete block design involving three replications. The main factors of interest in the design were three irrigation levels (100%, 85%, and 70% water supply requirements), and the sub-factors...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4511

PIGEON PEA INITIAL GROWTH UNDER DIFFERENT CONCENTRATIONS OF ALUMINUM AND COMMERCIAL SUBSTRATE
Provedor de dados: 196
Autores: Rodrigues, Gustavo Araújo; Pereira, Breno de Jesus; Santos, Anacleto Ranulfo dos; Costa, Francielle Medeiros; Anjos, Gilvanda Leão dos.
The incorporation of organic substrate into the soil can reduce aluminum toxicity in pigeon pea (Cajanus cajan (L.) Millsp.) plants, making it a viable alternative for use by small farmers in acidic soil regions such as the northeast semi-arid regions of Brazil that contain toxic aluminum in the soil. The aim of this study was to evaluate the effect of increasing aluminum doses and different commercial substrate concentrations on the initial growth of the pigeon pea. The experiment was undertaken in a greenhouse using a completely randomized design with a 5 × 3 factorial scheme. The first factor consisted of five doses of aluminum (0, 13.5, 27, 54, and 108 mg L-1) and the second factor consisted of three percentages of commercial substrate Vivato Slim Pro®...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5046

YIELD OF MARGARET QUEEN RADISH HYBRID ACCORDING TO THE SPACING
Provedor de dados: 196
Autores: Santos, Marlei Rosa dos; Moreira, Romário da Silva; Silva, Tadeu Barbosa Martins; Sousa, Ronildo Almeida de; Almeida, Rubenalto da Silva; Carreio, Laércio Gomes.
Currently, some important hybrids have replaced traditional radish cultivars, without, however, developing necessary studies on the best planting density for different Brazilian conditions. Thus, the present study aimed to evaluate the effect of spacing between rows and plants on the development and yield of the ‘Margaret Queen’ radish hybrid. A randomized blocks experimental design with four replications in a 3 x 3 factorial scheme was used. Three row spacings (10, 15, and 20 cm) and three spacings between plants in the row (3, 6, and 9 cm) were evaluated. The seeds were sown in furrows at 1.0 cm deep, and the harvest was carried out at 28 days after sowing. The following were determined: number of leaves, root diameter, root length, average root weight,...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4372

GROWTH, YIELD AND POST-HARVEST EVALUATION OF LETTUCE PLANTS SUBJECTED TO DIFFERENT LEAF SILICON CONCENTRATIONS
Provedor de dados: 196
Autores: Neves, Myriam Galvão; da Silva Júnior, Mário Lopes; de Oliveira Neto, Candido Ferreira; Okumura, Ricardo Shigueru; Pamplona Albuquerque, Gerson Diego; Santiago, Tiago de Souza.
Lettuce is considered the most produced and consumed leafy vegetable; however, it has short post-harvest life, which generates significant losses for both producers and consumers. Studies have proven the beneficial effect of silicon on fruits and vegetables. Therefore, the aim of the current study is to evaluate the influence of leaf calcium silicate application on the growth, biomass production and postharvest conservation of curly lettuce. The experiment was carried out in greenhouse at Federal Rural University of Amazonia, Parauapebas Campus / PA. It followed a completely randomized design (CRD) with five Si concentrations (0.0, 2.0, 4.0, 6.0 and 8.0 mg L-1) and eight repetitions, which totaled 40 plants. Plants were grown in plastic pots (capacity = 3...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4448

AGRONOMIC EFFICIENCY OF FERTILIZERS BASED ON HUMUS, ROCK POWDER, AND MINERALS ON SOYBEAN YIELD IN PARAGUAY-PY
Provedor de dados: 196
Autores: Marques, Mônica Lau da Silva; Jesus, Jéssica Maria Israel de; Santos, Wanderson Moreira dos; Silva, Jeferson Wendling Graciano; Martins, Adriana Lau da Silva; Marques, Valter Santos.
Soybean is the most commercially cultivated crop in Paraguay, and obtaining high yields requires the application of large amounts of fertilizers, raising the cost of production. Developing strategies for the efficient use of applied nutrients is necessary. Therefore, the study aimed to evaluate the agronomic efficiency of combinations of mineral fertilizers with organic matter and rock powder in the development, nutrition, and yield of soybean. The experiment was carried out in Hernandarias, Paraguay, in the 2016-2017 harvest. The different fertilizers influenced the absorption of Zn, Mg and K, and grain yield. Among the treatments, the highlight was the agronomic efficiency index obtained by the replacement of 30% of mineral fertilizer by humus,...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4364

COMPATIBILITY OF AZOXYSTROBIN AND CYPROCONAZOLE ON PLANT GROWTH-PROMOTING MICROORGANISMS
Provedor de dados: 196
Autores: Rocha, Weslany Silva; Silva, Mara Caroline Alves da; Machado Filho, Gilberto Coutinho; dos Santos, Mauro Gomes; Chagas Júnior, Aloísio Freitas; Santos, Manoel Mota dos.
Avoiding the toxicity effect of chemical fungicides on rhizobacteria is a sustainable alternative for agroecosystem management. Rhizobacteria, whose bioprotective and plant growth-promoter potential have been reported in the literature, lack studies on their performance in integrated management with pesticides. Thus, this study aimed to evaluate the effects of azoxystrobin + cyproconazole on the growth of Bacillus subtilis, Streptomyces seoulensis, and Bradyrhizobium japonicum. Three independent experiments were set up, i.e., one for each microorganism, and carried out in a completely randomized design in a factorial scheme (3 × 6), with three doses (recommended by the manufacturer, half, and twice) and six periods of evaluations (48, 96, 144, 192, 240,...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5281

YIELD OF IRRIGATED CABBAGE SUBMITTED TO DIFFERENT SOURCES AND DOSES OF BORON
Provedor de dados: 196
Autores: Leão Junior, Laidson Alves; Buso, Wilian Henrique Diniz.
Cabbage is an important vegetable for food. The use of micronutrients, more specifically boron, is important for plant development and head formation. The study aimed to evaluate the agronomic performance and yield of the cabbage crop submitted to the application of different sources and doses of boron. The study was carried out in the Água Verde farm, located in Nova Glória-GO, under irrigation by a center pivot system. The soil tillage consisted of operation with a subsoiler and a disk harrow. The fertilization was carried out by applying 48 kg ha-1 of N, 360 kg ha-1 of P2O5, and 120 kg ha-1 of K2O, in the planting furrow. The seedling transplant took place on 06/22/2019. At 20 days after transplanting, topdressing fertilization was carried out, with 200...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4166

WEED CONTROL BY SOLARIZATION AND MULCHING IN COWPEA DEVELOPMENT
Provedor de dados: 196
Autores: Maia Júnior, Sebastião de Oliveira; Andrade, Jailma Ribeiro de; Reis, Lígia Sampaio; Santos, Claudiana Moura dos; Silva, Lennon Kledson dos Santos; Martins, Gleica Maria Correia.
Weeds are a serious threat to agriculture because they compete with crops, thereby interfering in production. As such, this study aimed to assess weed control using soil solarization and mulching on the growth and yield of cowpea. A completely randomized design was used, with eight treatments and four repetitions. The treatments consisted of a combination of two management practices, namely soil solarization (with and without) and three mulches (castor bean, rattlepod and spontaneous vegetation), as well as no mulching. Non-solarized soil and without mulch increased the number and dry weight of weeds, while the main stem length of the cowpea plants decreased. Mulching increased the pod length and number of seeds per pod regardless of solarization, as well...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3938

HYGROSCOPIC BALANCE IN PUMPKIN SEEDS
Provedor de dados: 196
Autores: Wenneck, Gustavo Soares; Saath, Reni; Santi, Danilo Cesar; Araújo, Larissa Leite de; Santos, Josélia Portilho dos; Oliveira, Giovanna Gabriela Ferreira de.
The commercial exploitation of pumpkin seeds, at the flour form toasted or to the production of oil, requires knowledge about the activity of water and equilibrium moistures. This study aimed to determine the equilibrium isotherms to the pumpkin seeds and describe the dynamics of the process upon its physicochemical quality. With the static method, the equilibrium isotherms were determined for different temperatures and activities of water (0.110 to 0.885 dry basis), provided conditions by the conditioner chamber of atmosphere, with the weighing of the samples until the constant mass. The hygroscopic balance of the seeds was directly proportional to the activity of water and decreased with increasing temperature, for the same value of water activity. The...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4090

INDUSTRIAL TOMATO FOR FRESH CONSUMPTION: A TECHNICAL AND ECONOMICALLY VIABLE ALTERNATIVE
Provedor de dados: 196
Autores: Costa, Daianna Pereira; da Silva, Juliana Nascimento; Assunção, Donielsin da Silva; Penteado, Fritz Mohn; Nascimento, Abadia dos Reis.
The cultivation of hybrid tomatoes, intended for fresh consumption, with a determined growth habit, and without support, is an alternative that has a lower production cost. The research aimed to evaluate the productivity and economic viability of different tomato genotypes, with a determinate and indeterminate growth habit. The experimental design was in completely randomized blocks. Ten hybrids and a variety were grown in 2016, and nine hybrids, and a variety in 2018, with a spacing of 0.5 meters between plants. Harvests were carried out in four periods in 2016, at 72, 82, 97, and 105 days after transplanting (DAT); and in 2018 at 81, 87, 97, and 111 DAT. After harvesting, the gross value of production and profit were quantified. The hybrids that obtained...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3823

APPLICATION OF DIFFERENT SOURCES AND DOSES OF BORON IN THE CORN CROP
Provedor de dados: 196
Autores: Silva, Angela Oliveira; Buso, Wilian Henrique Diniz.
One of the main problems faced in corn cultivation, especially in Cerrado regions, is the deficiency of micronutrients. Among the micronutrients essential for the development of plants, boron (B) stands out for participating in a series of physiological processes. Based on this, the present work aimed to evaluate the performance of corn under fertilization with different sources and doses of boron. The randomized block design in a 4x3 factorial scheme was used. Four boron doses (0, 1, 2, and 3 kg ha-1) and three nutrient sources (boric acid, borax, and ulexite), applied in topdressing, were evaluated. Plant height (cm), stem diameter (mm), first ear insertion height (m), ear length (cm), ear diameter (mm), number of rows per ear, number of grains per row,...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4464

DEVELOPMENT OF AN ELECTRONIC CONTROLLER FOR LETTUCE PRODUCTION IN GREENHOUSES
Provedor de dados: 196
Autores: Marques Filho, Aldir Carpes; Rodrigues, Jean Paulo; Sartorio de Medeiros, Simone Daniela; Rodrigues de Medeiros, Sergio Ricardo.
The objective of this study was to develop an electronic controller for microclimate control in greenhouses, as well as to verify if the automated control system affects the productivity of two varieties of lettuce “Lactuca sativa”. The control system was developed based on the Atmega 2560 and compatible transducers. An experimental field analysis was carried out over a production cycle for two lettuce varieties. The experimental results showed that the designed equipment worked according to the implemented programming algorithm. However, the ventilation, nebulization and shading actuators did not control environmental variables, due to under sizing. The irrigation process was correctly controlled throughout the experimental period. The electronic...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4043

USE OF NANOCOMPOSITE HYDROGEL WITH N-UREA IN THE PRODUCTION OF EGGPLANT SEEDLINGS
Provedor de dados: 196
Autores: Salles, Josiane Souza; Jorge, Marçal Henrique Amici; Costa, Edilson; Melo, Raphael Augusto de Castro e; Lima, Alexandre Henrique Freitas de; Binotti, Flávio Ferreira da Silva.
The use of quality seedlings of eggplant is directly related to the success of their production, with polymers added to the substrate, which work as water conditioners, increase the water retention capacity, and provide better seedling quality. The study aimed to evaluate the use of nanocomposite hydrogel enriched with different proportions of N-urea in the production of eggplant seedlings. The experiment was conducted at the State University of Mato Grosso do Sul, Cassilândia, MS, Brazil, from June to August 2019, under sombrite® 30%. Five treatments were evaluated, using the commercial substrate, Carolina Soil®: 1) commercial substrate without hydrogel; 2) commercial substrate with 0.075g of pure hydrogel (0.00g of N-urea)/15 mL of a substrate; 3)...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5472

FOLIAR SPRAYING OF DOSES OF BORIC ACID IN CORIANDER (Coriandrum sativum L.)
Provedor de dados: 196
Autores: Mello Duarte, Jéssica Rodrigues de; Basílio, Scarlet de Aguiar; Silva, Isabela Carolina; Moreira, Elaine Gleice Silva; Pelá, Adilson.
Coriander (Coriandrum sativum) is a species highly appreciated in Brazilian cuisine and of high nutritional importance due to the presence of vitamins, calcium, and iron. Leafy vegetables are considered nutritionally demanding as their cycles are relatively short and the lack of any essential element affects their growth, yield and quality. This study aimed to evaluate the response of coriander plants (Coriandrum sativum L.) to foliar spraying of boron doses. The experiment was carried out in a greenhouse at The State University of Goiás, Campus Ipameri, in Ipameri-GO. The experimental design was completely randomized, with five treatments and four replications. The treatments consisted of five boron doses applied by foliar spray (0, 1.0, 1.5, 2.0 and 3.0...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3427

CYCLING OF WINTER FORAGE NUTRIENTS UNDER INTEGRATED CROP-LIVESTOCK SYSTEMS
Provedor de dados: 196
Autores: Perini Vengen, Andressa; Bartzen, Bruna Thaina; Mattei, Eloisa; Rocha de Moraes Rego, Carlos Augusto; Piano, Jeferson Tiago; Rabello de Oliveira, Paulo Sergio.
This study aimed to evaluate the decomposition and release of nutrients from the remaining straw of two annual forage species conducted in an integrated crop-livestock system (ICLS). The experimental design used was randomized blocks, in split plots, with three replicates. The managements were allocated in the plots (52 m2): without grazing, one grazing, and two grazings. Subplots were defined by material collection times after the forage’s desiccation (0, 30, 60, 90, and 120 days after desiccation). Dry matter yield, amounts of carbon, nitrogen, phosphorus, and potassium, and half-life time were evaluated. Oat cultivar IPR Esmeralda had the highest initial dry matter yield (6,099 kg ha-1) when not grazed, while triticale cultivar IPR 111 showed the...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4963

STRUCTURAL QUALITY INDICATORS IN COMPACTED OXISOLS GROWN WITH CORN
Provedor de dados: 196
Autores: de Vares Rossetti, Karina; Centurion, José Frederico.
In the face of the elevated cost of economic and environmental order to recover degraded soil, the monitoring of the structural quality of the soil through physical and plant indicators is recommended. This way, this work aimed to verify which parameters may be used together with soil penetration resistance (PR), after compression induced by agricultural machinery traffic in Haplustox (LVd) and an Eutrustox (LVef), grown with corn. The experiment was conducted with a randomized block design in a split-plot scheme with four replications. Five treatments and three soil layers (0-0.10; 0.10-0.20, and 0.20-0.30 m) for each soil class were evaluated. The treatments were: NC = conventional preparation without additional compression; C14, C17, and C110 = one pass...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5092

ALTERNATIVE SUBSTRATES FOR PRODUCTION OF YELLOW PASSION FRUIT SEEDLINGS
Provedor de dados: 196
Autores: Aires, Eduardo Santana; Aragão, Carlos Alberto; Gomes, Itala Laiane Silva; Souza, Gilmário Noberto de; Andrade, Isa Gabriela Vieira de.
This study aimed to evaluate different substrates to produce yellow passion fruit seedlings. For this purpose, an experiment was carried out in a greenhouse, from April to June 2016. A completely randomized design with five replications, in a 6 x 5 factorial scheme was used. The first factor was the alternative substrates (poultry, cattle and equine manure, sugarcane and coconut bagasse, and Organomais compost). The second factor was the replacement levels to the commercial substrate of Plantmax® (100:0, 75:25, 50:50, 25:75, 0:100). The seedling evaluation was carried out 42 days after sowing. The following variables were analyzed: length, width, and the number of leaves; plant height and shoot dry matter. A significant effect (P&amp;lt;0.05) for the...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3890

Erosion of the nocturnal boundary layer in the central Amazon during the dry season
Provedor de dados: 36
Autores: CARNEIRO,Rayonil Gomes; FISCH,Gilberto; BORGES,Camilla Kassar; HENKES,Alice.
ABSTRACT In this study, the erosion of the nocturnal boundary layer (NBL) was analyzed in the central Amazon during the dry season of 2014, using data from the GoAmazon 2014/5 Project and high-resolution model outputs (PArallelized Les Model - PALM). The dataset consisted of in situ (radiosonde) and remote sensing instruments measurements (Ceilometer, Lidar, Wind Profiler, microwave radiometer, and SODAR). The results showed that the NBL erosion occurred, on average, two hours after sunrise (06:00 local time), and the sensible heat flux provided more than 50% of the sensible heating necessary for the erosion process to occur. After the erosion, the convective phase developed quickly (175.2 m h-1). The measurements of the remote sensors showed that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Planetary boundary layer; Turbulent kinetic energy; Heat flux; NBL erosion.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100080

Evidence of mutagenic and lethal effects of herbicides on Amazonian frogs
Provedor de dados: 36
Autores: FERRANTE,Lucas; FEARNSIDE,Philip M.
ABSTRACT Amphibians are excellent bioindicators because they are sensitive to chemical pollution and can indicate ecosystem changes due to the presence of or exposure to chemical compounds. Here we report evidence of the impact of herbicides, including glyphosate, on amphibians in a locality in the central Brazilian Amazon and compare it with data from other biomes in Brazil. We observed malformations in three species of Leptodactylus and local extinctions of Scinax ruber and Rhinella marina from reproductive sites close to an area where herbicides had been applied. The observations in the Amazon are similar to reports from Brazil’s Atlantic forest on morphological anomalies and mortality in amphibians exposed to herbicides. We warn of the threat of...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Agrochemicals; Amazon Forest; Anurans; Bioindicators; Ecotoxicology; Environmental impact.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400363

Effects of inclusion of patauá, Oenocarpus bataua meal on elephant grass silage
Provedor de dados: 36
Autores: QUEIROZ,Amanda Caroliny Marques de; SANTOS,Wânia Mendonça dos; MENDONÇA,Rita de Cássia Almeida de; SANTOS,Rosana Ingrid Ribeiro dos; SILVA,Thiago Carvalho da; DOMINGUES,Felipe Nogueira; RÊGO,Aníbal Coutinho do.
ABSTRACT Elephant grass silages have high moisture content, causing nutrient loss, mainly by effluent production. The use of moisture absorbent additives, such as patauá, Oenocarpus bataua meal, can be a strategy to reduce losses in these silages. The aim of this study was to determine the fermentation losses, microbiological composition, fermentative characteristics, and chemical composition of elephant grass silage with increasing levels of inclusion of patauá meal. The experiment was conducted in a completely randomized design, with four concentrations of patauá meal (7%, 14%, 21%, and 28%, based on fresh matter) and a control without patauá, and five replicates. The elephant grass was collected manually after 60 days of growth. After chopping, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Additive; Effluent production; Moisture; Pennisetum purpureum.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200101

Effect of density of fingerling and juvenile pirarucu during transportation on water quality and physiological parameters
Provedor de dados: 36
Autores: LIMA,Adriana Ferreira; OLIVEIRA,Hyago Jovane Borges de; PEREIRA,André Silvério; SAKAMOTO,Silmara Sanae.
ABSTRACT We assessed the effect of stocking density on physiological parameters (blood lactate, glucose, cortisol, hematocrit), water quality (temperature, dissolved oxygen, pH, unionized ammonia, carbon dioxide), and survival during the transportation of fingerling (24.5 ± 4.7 g) and juvenile (615.8 ± 122.2 g) pirarucu (Arapaima gigas) for six hours in plastic bags. The tested densities were 65, 80, 95, 110 and 125 g L-1 for fingerlings, and 50, 80, 110, 140 and 170 g L-1 for juveniles (three replicates each). Parameters were measured prior to and immediately after transportation, and at 24 and 96 hours recovery after transportation. No mortality was observed, except for fingerlings (&lt; 3%) at densities of 110 and 125 g L-1 during recovery. All the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arapaima gigas; Closed system; Lactate; Cortisol; Glucose.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300223

Temporal distribution of fruit-feeding butterflies (Lepidoptera, Nymphalidae) in the eastern extreme of the Amazon region
Provedor de dados: 36
Autores: ARAUJO,Elias da Costa; MARTINS,Lucas Pereira; DUARTE,Marcelo; AZEVEDO,Gisele Garcia.
ABSTRACT Rainfall is one of the most influential factors driving insect seasonality in the Amazon region. However, few studies have analyzed the temporal dynamics of fruit-feeding butterflies in the Brazilian Amazon, specially in its eastern portion. Here, we evaluated the diversity patterns and temporal distribution of fruit-feeding butterflies in a remnant of eastern Amazon forest in the Baixada Maranhense, northeastern Brazil. Specifically, we tested whether fruit-feeding butterflies are temporally structured and whether rainfall influences species richness and abundance. Butterflies were collected with baited traps in both the rainy and dry seasons for two consecutive years. In total, we captured 493 butterflies belonging to 28 species, 15 genera and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian Amazon; Frugivorous butterflies; Maranhão; Seasonality; Temporal diversity; Tropical forest.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100012

Provenance of heavy and clay minerals in bottom sediments of Green Lake, an Amazonian fluvial lake in Brazil
Provedor de dados: 36
Autores: MENDES,Anderson C.; DANTAS,Ângela B.; RIBEIRO,Anne Caroline S.; SANTOS,Livaldo O.; MENDES,Kamilla C.; MORAES,Dorsan dos Santos; ALMEIDA,Rodolfo M.
ABSTRACT Studies on provenance of minerals in Amazonian rivers focus mostly on suspended sediments, while processes that control bottom-sediment production and distribution are still little known. We determined the provenance of the bottom sediments of Green Lake, a micro-basin draining into the Tapajós River, in the eastern Brazilian Amazon. We used X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and, cathodoluminescence techniques to analyze clay, light and heavy minerals of 22 samples. The lake is L-shaped, with 5.5 m maximum depth, and predominance of mud over sand in the center. Quartz and feldspar were dominant in the light fraction, while zircon, tourmaline, kyanite, rutile, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alter do Chão Formation; Lacustrine sediment; Amazon Basin; Santarém; Mineral characterization.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200159

Total mercury in wild felids occurring in protected areas in the central Brazilian Amazon
Provedor de dados: 36
Autores: LOPES,Marcelly Castello Branco; CARVALHO,Gabriel Oliveira de; BERNARDO,Robson Roney; MACEDO,Joana; LINO,Adan Santos; RAMALHO,Emiliano Esterci; KASPER,Daniele; MEIRE,Rodrigo Ornellas; TORRES,João Paulo Machado; MALM,Olaf.
ABSTRACT This is the first study to investigate mercury (Hg) contamination in felid species in the Brazilian Amazon. We collected 26 fur samples from wild felids of four species (Puma concolor, Panthera onca, Leopardus pardalis and Leopardus wiedii) occurring in the Mamirauá and Amanã sustainable development reserves, in the state of Amazonas. Samples were from museum specimens, except for five P. onca samples collected from free-living individuals. Total Hg concentrations ranged from 0.12 to 48.1 µg g-1. Concentrations of Hg did not differ significantly between museum specimens and live individuals of P. onca, but varied significantly among species, with significantly higher concentrations for P. onca and L. pardalis, which could be related to factors...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Mammals; Bioaccumulation; Fur; Heavy metals.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200142

First record of the association of the weevil Loncophorus longinasus with the fruit of munguba, Pseudobombax munguba in Central Amazonia, Brazil
Provedor de dados: 36
Autores: KEPPLER,Stefan Friedrich; SILVA,Neliton Marques da.
ABSTRACT We report the first record of occurrence of Loncophorus longinasus in fruits of munguba, Pseudobombax munguba, in the state of Amazonas, Brazil. Some morphological and biological aspects of L. longinasus are presented. Adults were obtained through natural emergence from munguba fruits that opened for seed dispersal. The fruits had perforations leading to galleries through the exocarp. Inside the fruit, larvae were found at the seed insertion points on the central seed attachment structure. The pupae developed in a cocoon at the same structure and turned mature simultaneously with the capsule opening. Together with the larvae, the presence of ants (Pseudomyrmex sp.) was observed, that apparently maintained the galleries open for access and feeding...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Insecta; Curcilionidae; Immature; Malvaceae; Ants; Pseudomyrmex.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100001

Conservation potential of shade-tolerant forest species in agricultural mosaics in the eastern Brazilian Amazon
Provedor de dados: 36
Autores: DO VALE,Igor; MIRANDA,Izildinha Souza; MITJA,Danielle; SANTOS,Alessio Moreira; SANTOS,Graciliano Galdino Alves dos; LEÃO,Fábio Miranda; OLIVEIRA,Mariana Gomes; COSTA,Luiz Gonzaga da Silva.
ABSTRACT Shade-tolerant forest species are among the most susceptible to habitat loss in agricultural mosaics, where a variety of croplands is connected to forests at different levels of anthropogenic disturbance. We aimed to evaluate the community similarity of shade-tolerant species among different land use types across agricultural mosaics with different levels of disturbance. The study was conducted in three municipalities in southern and southeastern Pará state, in eastern Amazonia. A multiple-community similarity measure based on the Horn similarity index was used to compare land use types and assess the resilience of shade-tolerant species towards forest loss and disturbance at the landscape level. High shade-tolerant species similarity was found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floristics; Land use; Pasture; Resilience; Similarity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200124

Identification of priority areas for landscape connectivity maintenance in the Xingu Area of Endemism in Brazilian Amazonia
Provedor de dados: 36
Autores: CASTRO,Rodrigo Baia; PEREIRA,Jorge Luis Gavina; SATURNINO,Regiane; MONTEIRO,Paula Sueli Duarte; ALBERNAZ,Ana Luisa Kerti Mangabeira.
ABSTRACT Forest fragmentation has been intense in the eastern Amazon region, which has negatively affected wildlife populations. The speed of deforestation in this region underscores the urgent need to understand the effects of such changes on populations of endemic species, and to implement measures for ecosystem conservation. We analyzed the extent to which fragmented forests are still connected in the Xingu Area of Endemism, in the eastern Brazilian Amazon, and assigned conservation priority to fragments most important for connectivity maintenance. We structurally classified the Xingu landscape using the Morphological Spatial Pattern Analysis and ranked each fragment according to its importance using an Index of Connectivity. Our data revealed important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Functional connectivity; Spatial analysis; Integral index of connectivity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100068

Nestling development and data on nests and eggs of Topaza pella (Aves, Trochilidae) in Amapá state, northern Brazil
Provedor de dados: 36
Autores: FRANÇA,Pedro Ferreira; SANTOS,Wirley Almeida; COSTA-CAMPOS,Carlos Eduardo; LOPES,Edson Varga.
ABSTRACT The Crimson Topaz, Topaza pella, is the least known of the two hummingbird species of this exclusively Amazonian trochilid genus, that also includes T. pyra. Most available information on T. pella nests, young and reproductive behavior is based on anecdotal observations from Guyana in the 1930s and 1950s. Here, we provide new data on nest description, eggs and parental care of T. pella, and the growth and development of two nestlings over a 22-day period. We studied four nests in areas of dense terra firme forest in the state of Amapá, Brazil. All nests were in forked branches of shrubs over water bodies, and had a cup-like form. One nest contained two elongated white eggs, and another, two nestlings, which had their development recorded until...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Amazonia; Hummingbirds; Reproduction; Crimson Topaz; Parental care.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200138

Length-weight relationship and condition factor for twelve fish species from the Igarapé Fortaleza basin, a small tributary of the Amazonas River estuary
Provedor de dados: 36
Autores: OLIVEIRA,Marcos Sidney Brito; SILVA,Luís Maurício Abdon; PRESTES,Luiza; TAVARES-DIAS,Marcos.
ABSTRACT Length and weight data are useful in fisheries management and standard results of fish monitoring programs. Length-weight relationship (LWR) is used for estimating the weight corresponding to a given length, and the condition factor is used to compare the body condition, fatness or health of fish populations. This study aimed to estimate the LWR and the condition factor for 12 freshwater fish species from the Igarapé Fortaleza basin, a tributary of the Amazonas River system in the State of Amapá, eastern Amazon (Brazil). The coefficient of determination, the allometric condition factor and the allometric coefficient varied among species, and were compared with populations elsewhere. In 83.3% of the species, the allometric coefficient remained...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Allometry; Brazil; Freshwater fish; Growth pattern.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100008

Variation in environmental characteristics of waters among Amazon coast oyster culture units
Provedor de dados: 36
Autores: SAMPAIO,Dioniso de Souza; SANTOS,Maria de Lourdes Souza; TAGLIARO,Claudia Helena; BEASLEY,Colin Robert.
ABSTRACT Oyster culture has benefited traditional coastal communities along the Amazon macrotidal mangrove coast of Pará state in Brazil since 2006. Currently, seven oyster culture units in five municipalities are expanding production, but with no environmental monitoring, which is important for the control of the impacts of oyster culture on waters as well as for oyster management and conservation. Seasonal variation in environmental characteristics of the water was evaluated at all oyster culture units in Pará, from September to November 2013 (dry season) and February to April 2014 (wet season), to generate baseline data to evaluate future impacts and aid strategic planning, such as diversifying seed production. Salinity, dissolved oxygen, pH,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical mariculture; Crassostrea; Salinity; Water quality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400295

Second capture of Promops centralis (Chiroptera) in French Guiana after 28 years of mist-netting and description of its echolocation and distress calls
Provedor de dados: 36
Autores: FROIDEVAUX,Jérémy S.P.; ROEMER,Charlotte; LEMARCHAND,Clément; MARTÍ-CARRERAS,Joan; MAES,Piet; RUFRAY,Vincent; URIOT,Quentin; URIOT,Sylvain; LÓPEZ-BAUCELLS,Adrià.
ABSTRACT The Amazonian basin harbours some of the most bat-diverse ecosystems worldwide. Yet, information on elusive, high-flying bat species such as Molossidae is scarce or virtually missing in the literature, which hampers conservation efforts both locally and globally. The recent advent of new technologies specifically designed to survey bats, such as passive ultrasound detectors and acoustic lures, has significantly increased understanding of bat ecology and distribution, and has allowed researchers to gather new and valuable information which was impossible to collect in the past. We undertook a rapid bat diversity assessment in French Guiana using acoustic lures to aid in capturing high-flying insectivorous bat species. Here we report the second and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Bats; Bioacoustics; Molossidae; Mitochondrial sequences.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400327

Acute toxicity of a deltamethrin based pesticide (DBP) to the Neotropical electric fish Microsternarchus cf. bilineatus (Gymnotiformes)
Provedor de dados: 36
Autores: CHAVES,Valesca de Souza; MARCON,Jaydione Luiz; DUNCAN,Wallice Paxiúba; ALVES-GOMES,José Antônio.
ABSTRACT Deltamethrin is a pyrethroid insecticide widely used in pest control in Brazilian agriculture. The intensive and disordered use of this pesticide in the Amazon region can drive it into aquatic ecosystems in several ways, but mainly by runoff and leaching. The present study was conceived to determine the acute toxicity (LC50) of a deltamethrin based pesticide (DBP) and to characterize its effects on two biochemical biomarkers, glutathione-S-transferase (GST) and acetylcholinesterase (AChE), in tissues of the electric fish Microsternarchus cf. bilineatus. Fishes were exposed to concentrations of 1, 2, 3, 4 and 5 μg L-1 of DBP for up to 96 hours. For each treatment, the absolute activity of the enzymes GST (muscle and liver) and AChE (muscle and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pyrethroid insecticide; Biomarkers; Median LC50; Glutathione-S-transferase; Acetylcholinesterase.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400355

ERRATA
Provedor de dados: 36
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400367

Effect of dietary taurine supplementation on the growth and blood physiological parameters of juvenile pirarucu
Provedor de dados: 36
Autores: RODRIGUES,Ana Paula Oeda; SILVA,Marcello Cappio Nunes; BERETTA,Emiliano Salvatore; FONSECA,Flávio Augusto Leão da; PARISI,Giuliana; CONCEIÇÃO,Luís Eugênio Castanheira da; GONÇALVES,Ligia Uribe.
ABSTRACT For some fish species, dietary taurine supplementation has been proven necessary in feeds with considerable utilization of vegetable proteins to substitute fishmeal. Pirarucu, Arapaima gigas feeds mainly on taurine-rich animal items in nature, therefore this study aimed to evaluate the effect of dietary taurine supplementation (0, 0.5, 1, 1.5 and 3%) on the growth and blood physiological parameters of juvenile pirarucu. A commercial feed was utilized as the basal diet for the experimental diets. Three hundred fish (20.8 ± 2.3 g) were randomly distributed in 15 tanks and fed for 28 days. At the end of the trial, dietary taurine supplementation did not affect fish growth, feed consumption and feed efficiency. The original amounts of taurine (0.18%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fishmeal; Vegetable proteins; Methionine; Arapaima gigas.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400289

Detection of anti-Leptospira spp. agglutinins in captive South American river turtles, Podocnemis expansa
Provedor de dados: 36
Autores: SOUZA ROCHA,Katarine de; MONTEIRO,Louysse Helene; SANTOS MIRANDA,Juliana Maria; MONTEIRO BAIA,Ianny Watuzy; MARQUES MONTEIRO,Thamillys Rayssa; SCHUPP DE SENA MESQUITA,Gleiciane; ROCHA ALBUQUERQUE,Mirian da; THIEMY YOKOKURA,Layna; CASTANHEIRA PIMENTA,Gabriela; TEIXEIRA GOMES,Maria Érika; MARQUES BARROZO,Pedro Henrique; CARVALHO DE CASTRO,Danniel; ABENSUR VIEIRA,André Luiz; EGUCHI MESQUITA,Ellen Yasmin; GUIMARÃES DE MORAES,Carla Cristina.
ABSTRACT Leptospirosis is a zoonosis transmitted by contact with infected urine or water contaminated with the agent. Searches for Leptospira spp. in reptiles are scarce although most species have contact with aquatic environments. We evaluated the presence of anti-Leptospira spp. antibodies in Podocnemis expansa housed at the Amazonian Zoobotanical Garden, in Belém, Pará state, Brazil. We analyzed 74 serum samples through the microscopic agglutination test using 31 live antigens from different Leptospira spp. serogroups. Thirty samples (40.5%) were positive against Leptospira spp., with titrations between 100 and 3,200 for one or more serogroups. The Hebdomadis serogroup was the most prevalent, with 26 (87%) out of the 30 positive samples, followed by...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Chelonians; Microscopic agglutination test; Hebdomadis; Djasiman; Celledoni; Bataviae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200115

Niche differentiation mechanisms among canopy frugivores and zoochoric trees in the northeastern extreme of the Amazon
Provedor de dados: 36
Autores: TODESCHINI,Felipe; TOLEDO,José Julio de; ROSALINO,Luis Miguel; HILÁRIO,Renato Richard.
ABSTRACT Frugivores and zoocoric trees represent an important proportion of tropical rainforest biodiversity. As niche differences favor species coexistence, we aimed to evaluate morphological and temporal niche segregation mechanisms among zoochoric trees and canopy frugivores in a tropical rainforest in the northeastern extreme of the Brazilian Amazon. We tested the effects of fruit morphology, tree size, frugivore body size and time of day on fruit consumption. We recorded the frugivore species that fed on 72 trees (44 species, 22 genera) and whether these frugivores swallowed the seeds. We monitored trees only once from 07:00 to 17:00 h between January and September 2017. We observed fruit consumption in 20 of the 72 trees. Seventy-three frugivore...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amapá National Forest; Frugivory; Phenology; Seed dispersal; Tropical rainforest.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300263

Cultivable cellulolytic fungi isolated from the gut of Amazonian aquatic insects
Provedor de dados: 36
Autores: BELMONT-MONTEFUSCO,Enide Luciana; NACIF-MARÇAL,Lorena; ASSUNÇÃO,Enedina Nogueira de; HAMADA,Neusa; NUNES-SILVA,Carlos Gustavo.
ABSTRACT Filamentous fungi have been targeted by bioprospecting studies because they are effective producers of extracellular enzymes that can potentially be used by the bioindustry. In this study, we isolated filamentous fungi from the guts of Amazonian aquatic insect larvae to evaluate their cellulolytic activity. We collected 69 larvae of shredder insects of three genera: Phylloicus (Trichoptera: Calamoceratidae), Triplectides (Trichoptera: Leptoceridae) and Stenochironomus (Diptera: Chironomidae) in ten streams from a protected area in the central Brazilian Amazon. Production of mycelia was elaborated in PDA (Potato Dextrose Agar) medium. The isolates were transferred to a synthetic medium with carboxymethyl cellulose, and Congo red was used to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cellulase; Enzymatic hydrolysis; Phylloicus; Shredders; Amazonia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400346

Common opossum population density in an agroforestry system in Bolivia
Provedor de dados: 36
Autores: BENAVIDES,Camila; ARCE,Alejandro; PACHECO,Luis F.
ABSTRACT The common opossum, Didelphis marsupialis thrives near human settlements. Understanding its ecology could help planning management decisions about this species, especially in anthropogenic landscapes. Yet, there are no density estimations for this species throughout its distribution range in Bolivia. We estimated the density of D. marsupialis in a rural agricultural community, where agroforestry plantations and fallows cover most of the land. We counted individuals in line transects and used DISTANCE software to calculate density. We covered a total of 70.21 km in 143 night counts, obtaining 38 records of D. marsupialis. We estimated a density of 0.30 individuals ha-1 (SE = 0.062; range: 0.20 - 0.45 individuals ha-1), with a mean encounter rate of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Didelphis marsupialis; Tropical agroecosystems; Line transect; DISTANCE sampling.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300246

Assessment of TerraClass and MapBiomas data on legend and map agreement for the Brazilian Amazon biome
Provedor de dados: 36
Autores: NEVES,Alana Kasahara; KÖRTING,Thales Sehn; FONSECA,Leila Maria Garcia; ESCADA,Maria Isabel Sobral.
ABSTRACT Reliable environmental monitoring and evaluation require high-quality maps of land use and land cover. For the Amazon biome, the TerraClass and MapBiomas projects apply different methodologies to create these maps. We evaluated the agreement between land cover and land use maps generated by TerraClass and MapBiomas (Collections 2 and 3) for the Brazilian Amazon biome, from 2004 to 2014. Specifically, we: (1) described both project legends based on the LCCS (Land Cover Classification System); (2) analyzed the differences between their classes; and (3) compared the mapping differences among the Brazilian states that are totally or partially covered by the Amazon biome. We compared the classifications with a per-pixel approach and performed an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land cover; Classification system; Remote sensing; PRODES; Non-forest; Geospatial analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200170

Tovomita nebulosa (Clusiaceae), a new species from Cerro de la Neblina, Venezuela
Provedor de dados: 36
Autores: MARINHO,Lucas C.; LUJÁN,Manuel; FIASCHI,Pedro; AMORIM,André M.
ABSTRACT Although the number of recently described Tovomita species is relatively high, much more remains to be done, given that each new survey of representative Amazonian collections reveals many potentially undescribed taxa. In the treatment for Tovomita published in Flora of the Venezuelan Guayana, at least six distinct morphotypes did not match any previously described species. Here we recognize morphotype “D&amp;#8221; as a new endemic species from Cerro de la Neblina. Additionally, we provide an identification key to the Tovomita species in Venezuela.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon Forest; Clusioid clade; Malpighiales; Pico da Neblina; South America.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200149

Do local environmental factors structure the trophic niche of the splash tetra, Copella arnoldi? A test in an Amazonian stream system
Provedor de dados: 36
Autores: SOARES,Bruno Eleres; BENONE,Naraiana Loureiro; ROSA,Daniela Cristina Oliveira; MONTAG,Luciano Fogaça de Assis.
ABSTRACT Environmental variation affects the availability of spatial and trophic resources in Amazonian streams and may be important factors structuring the diet of fishes. We analyzed the diet composition and trophic niche breadth of the lebiasinid splash tetra, Copella arnoldi, aiming to evaluate how environmental variation in Amazonian streams affects the species’ trophic niche. Fish were captured and environmental factors were recorded in 20 streams in the Caxiuanã National Forest, in the eastern Amazon, in November 2010. We made a semi-quantitative analysis of stomach contents of 200 individuals. Copella arnoldi exhibited an omnivorous diet composed mainly of detritus and allochthonous invertebrates. Environmental variation (stream width, stream...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental variation; Lebiasinidae; Niche breadth; Trophic ecology; Brazilian Amazon.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100054

Rapid assessment of the ichthyofauna of the southern Guiana Shield tributaries of the Amazonas River in Pará, Brazil
Provedor de dados: 36
Autores: DUTRA,Guilherme M.; FREITAS,Tiago M. S.; PRUDENTE,Bruno S.; SALVADOR,Gilberto N.; LEÃO,Manuela D. V.; PEIXOTO,Luiz A. W.; MENDONÇA,Marina B.; NETTO-FERREIRA,André L.; SILVA,Fabio R.; MONTAG,Luciano F. A.; WOSIACKI,Wolmar B.
ABSTRACT The Northern Pará Drainage System encompasses the left-bank tributaries of the Amazonas River in the southern Guiana Shield region of Pará state, Brazil. Five of the region’s state protected areas are considered strategic for the conservation of its biodiversity. In the present study, we assessed the ichthyofauna of the five state protected areas of the Northern Pará Drainage System. Seven expeditions were conducted between January 2008 and January 2009, which surveyed stretches of the Cuminá, Cuminapanema, Curuá, Jari, Mapuera, Nhamundá, and Paru rivers. These surveys yielded 286 species belonging to 38 families and eight orders, including seven new records of fish species for Brazil, six of which are also new records for the Amazon basin. Our...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Northern Pará Drainage System; Protected areas; Amazon; Inventory; Fish.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100024

Notes on Stenhelmoides and description of the true male genitalia of S. strictifrons Grouvelle, 1908 (Coleoptera: Elmidae)
Provedor de dados: 36
Autores: FERNANDES,André S.; POLIZEI,Thiago T.S.; BOLDRINI,Rafael.
ABSTRACT The genus Stenhelmoides comprises 15 species spread over all Central and South America and its greatest species richness is clearly associated with Amazonian regions. Based on examination of type specimens and additional material, we describe and illustrate the true male genitalia of Stenhelmoides strictifrons, which had until now been incorrectly illustrated in the literature. We also report new records of the genus Stenhelmoides from Brazil and Guyana. In addition to pictures of the species’ habitus, we provide pictures of the type specimens of Stenhelmoides grandis, S. grouvellei, S. guyanensis; S. strictifrons and S. submaculus. Based on the International Code of Zoological Nomenclature, we recognize additional paralectotypes for S. guyanensis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Riffle beetles; Aquatic insects; Morphology; Neotropics; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400317

Review of the distribution of Lophostoma carrikeri (Chiroptera: Phyllostomidae), with range extension to transitional vegetation zones in the southwestern Amazon
Provedor de dados: 36
Autores: BRANDÃO,Marcus V.; PEDROSO,Mônica A.; COLAS-ROSAS,Paul F.; AIRES,Caroline C.; ROCHA,Patrício A. da.
ABSTRACT Lophostoma carrikeri has been mostly recorded within the Amazon biome. There are scarce records in the northern Brazilian Amazon, but also records outside this biome, which were neglected in literature. The aim of this study was to update and extend the distribution of L. carrikeri. Seven new localities in Brazil were provided, including the first records for the states of Rondônia and Mato Grosso, filling a large gap in the species distribution, and three additional records for the state of Pará. Our results reinforce the notion that L. carrikeri is widely distributed in the Amazon, but is also present in other biomes in Brazil, such as Caatinga, Cerrado, and transitional areas.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Carriker’s round-eared bat; Phyllostomini; Savanna; Rainforest; Ecotone.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200119

Effect of environmental parameters on squamate reptiles in an urban forest fragment in central Amazonia
Provedor de dados: 36
Autores: ALMEIDA-CORRÊA,Thais; FRAZÃO,Luciana; COSTA,Diogo Magalhães; MENIN,Marcelo; KAEFER,Igor Luis.
ABSTRACT The increasing urbanization of the Amazonian biome has promoted the creation of several forest fragments surrounded by an urban matrix, but the relationship of animal assemblages to the urban environment, especially in forest fragments, is poorly known. Here we aimed to 1) determine the composition of the squamate fauna of the largest urban forest fragment from central Amazonia, in the Brazilian city of Manaus, and 2) evaluate the influence of environmental parameters on assemblage diversity. We sampled 10 standardized riparian plots through visual search in six surveys between 2008/09 and 2015, totaling 360 observer-hours. We found 15 species of lacertoids (lizards and amphisbaenians) and seven species of snakes through active search. After...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphisbaenians; Edge effect; Lizards; Snakes; Urban ecology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300239

ERRATA
Provedor de dados: 36
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400368

New records of the invasive macrophyte, Urochloa arrecta extend its range to eastern Brazilian Amazon altered freshwater ecosystems
Provedor de dados: 36
Autores: FARES,Ana Luisa Biondi; NONATO,Flávia Alessandra da Silva; MICHELAN,Thaísa Sala.
ABSTRACT Invasive species influence the structure and functioning of ecosystems, as they affect native species, significantly decreasing their diversity. Aquatic ecosystems harbor a great biodiversity, and invasive macrophytes significantly affect the native plant communities, causing a cascade effect on other trophic levels. Among invasive macrophytes, Urochloa arrecta is cause for concern in the Neotropics and is found in several regions of Brazil, specially in the southeastern and southern regions. So far the species had been recorded only in the northern state of Amazonas. We report the first record of the species in the state of Pará, in the eastern Brazilian Amazon. We emphasize that identifying sites where this species is invasive is the best...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Aquatic plants; Invasion ecology; Grasses; Poaceae; Amazonas state; Pará state.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200133

Habitat use, fruit consumption, and population density of the black-headed night monkey, Aotus nigriceps, in southeastern Peru
Provedor de dados: 36
Autores: HELENBROOK,William. D.; WILKINSON,Madison L.; SUAREZ,Jessica A.
ABSTRACT The black-headed night monkey, Aotus nigriceps, has one of the largest distribution ranges of the 11 night monkey species found across Central and South America. Yet, only three studies have focused on their ecology, describing considerable variation in habitat, group composition, and population density. Therefore, we analyzed habitat use, group composition, population density, and diet of 14 groups at two field sites in southeastern Peru. All sampled groups were found in secondary tropical rainforest, often dominated by native bamboo species. Half of the observed sleeping sites were in bamboo stands, though groups also emerged from cane thickets and lianas. This contrasts with other Aotus studies which have found groups living in tree cavities...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Primates; Aotidae; Conservation; Owl monkey; Nocturnal; Habitat.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100037

Obtaining monokaryotic and dikaryotic mycelial cultures of two Amazonian strains of Geastrum (Geastraceae, Basidiomycota)
Provedor de dados: 36
Autores: SANTANA,Marcos Diones Ferreira; VARGAS-ISLA,Ruby; NOGUEIRA,Janaina da Costa; ACCIOLY,Thiago; SILVA,Bianca Denise Barbosa da; COUCEIRO,Sheyla Regina Marques; BASEIA,Iuri Goulart; ISHIKAWA,Noemia Kazue.
ABSTRACT The high diversity of the genus Geastrum and the difficulty of obtaining mycelial cultures impairs the study of the ecophysiology and the exploration of the biotechnological potential of the taxon. In this study, different culture media were tested to obtain mycelial cultures for G. lloydianum and G. subiculosum collected in the Brazilian Amazon. Data on spore germination, and isolation of monokaryotic cultures and in vitro sexual reproduction are presented, as well as a brief morphological description of the cultures obtained. For both species, Potato Dextrose Agar (PDA) was the most promising of the tested culture media. The highest growth in agar culture ever recorded for this genus is reported (4.9 mm per week for G. lloydianum and 7.5 mm for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Earthstars; Gasteroid fungus; Geastrum lloydianum; Geastrum subiculosum; Mycelial growth.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100061

Morphology and distribution of the freshwater mussel Diplodon granosus, a rare and poorly understood species
Provedor de dados: 36
Autores: MIYAHIRA,Igor Christo; MANSUR,Maria Cristina Dreher; PIMPÃO,Daniel Mansur; COUCEIRO,Sheyla Regina Marques; SANTOS,Sonia Barbosa dos.
ABSTRACT Diplodon granosus was one of the first freshwater mussels to be described for South America. However, the status of the species was confusing for a long time, receiving different taxonomic treatments. In this paper, we redescribe the shell, with new data on the soft parts and information on the distribution and conservation of D. granosus, a rarely recorded species. The shell is thin, not inflated; the macrosculpture is composed only by granules that cover the whole shell, not forming bars; the microsculpture comprises short spikes. In the soft parts we highlight the few, weak and irregularly distributed lamellar connections of the outer demibranch and some features of the stomach, such as the distally enlarged minor typhlosole. There are records...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Unionida; Hyriidae; Rhipididontini; Taxonomy; Conservation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100044

Litter decomposition and nutrient release dynamics of leaves and roots of the babassu palm in eastern Amazonia
Provedor de dados: 36
Autores: LUZ,Ronildson Lima; LEITE,Márcio Fernandes Alves; ZELARAYÁN,Marcelo Correa; BODDEY,Robert Michael; GEHRING,Christoph.
ABSTRACT The ruderal babassu palm (Attalea speciosa) is expanding on large areas of degraded Amazon landscapes. Decomposition of leaves and roots is in the center of plant:soil interactions. We evaluated decomposition and nutrient concentrations of leaves and fine roots of babassu in comparison with two exotic reference species, Acacia mangium (slow degradability) and Leucaena leucocephala (fast degradability), in a 138-day litterbag assay carried out in secondary forest stands of different age and babassu abundance. We chose 4-mm over 2-mm mesh litterbags based on a pilot study. Babassu leaves degraded slower than leaves of A. mangium and L. leucocephala, and also had lower nitrogen, phosphorus and calcium concentrations in all stages of decomposition. By...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Attalea speciosa; Litter bag; Nutrient concentrations; Ruderal palm; Secondary succession; Soil organic matter.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300213

Ocurrence of pepper yellow mosaic virus and cucumber mosaic virus on Capsicum chinense in the state of Amazonas, Brazil
Provedor de dados: 36
Autores: SOUZA,Leonor Cristina Silva; HANADA,Rogerio Eiji; ASSIS,Luiz Alberto Guimarães; CAMELO-GARCÍA,Viviana M.; REZENDE,Jorge Alberto Marques; YUKI,Valdir A.; KITAJIMA,Elliot W.
ABSTRACT The habanero chilli pepper, Capsicum chinense is an important crop in the Amazon Basin, mainly grown by small-scale producers. Capsicum chinense plants in an experimental field in the northern Brazilian state of Amazonas were found exhibiting characteristic symptoms of viral infection. Leaf sap from symptomatic plants examined under a transmission electron microscope revealed the presence of elongated flexuous particles and isometric particles. Using molecular assays, the viruses were identified as pepper yellow mosaic virus (PepYMV) and cucumber mosaic virus (CMV). Aphids, identified as Aphis gossypii, were found colonizing the C. chinense plants in the field and may be the vector for both PepYMV and CMV. We report the first occurrence of these...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Cucumovirus; Potyvirus; Transmission electron microscopy; RT-PCR; Aphis gossypii.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100005

Performance and economic viability of tambaqui, Colossoma macropomum, selectively bred for weight gain
Provedor de dados: 36
Autores: SILVA,Ana Carla Carvalho; BARROS,Adriana Fernandes de; MENDONÇA,Flávia Maria Fernandes; GAMA,Kamyla Fernanda da Silva; MARCOS,Rebeca; POVH,Jayme Aparecido; FORNARI,Darci Carlos; HOSHIBA,Márcio Aquio; ABREU,Janessa Sampaio de.
ABSTRACT Tambaqui, Colossoma macropomum, is one of the most produced species in Brazilian fish farming, which has boosted the development of new technologies to increase its productivity. The aim of this study was to evaluate production performance in two second-generation tambaqui stocks selectively bred for weight gain in a semi-intensive rearing system and assess its influence on total production cost. We analyzed 300 fish (initial mean weight and standard length of 160 g and 17 cm, respectively) of two families (A and B, 150 fish each). The fish were individually marked with microchips and stocked in an 800-m2 excavated pond. For economic analysis, the obtained performance data were extrapolated for a fish farm with a 10-ha pond, adopting the Total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture productivity; Breeding; Fish farming; Production cost; Native Brazilian fish.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200108

Distribution update, conservation status and color in life of the rare Amazonian snake, Eutrachelophis papilio Zaher and Prudente 2019 (Serpentes: Xenodontini)
Provedor de dados: 36
Autores: CITELI,Nathalie; DE-CARVALHO,Mariana; BRANDÃO,Reuber.
ABSTRACT The rare Amazonian snake Eutrachelophis papilio is known from only five individuals, from four localities, belonging to its type-series, the more recent collected over 10 years ago. Here, we expand its distribution and describe its color in life for the first time. We also provide an estimate of its distribution area using the minimum convex polygon method and identify the values of anthropic pressure within its known distribution range with the Human Footprint Index. The new occurrence is located 291 km from the nearest known locality and its distribution is associated with pristine forests. Considering its rarity, and the absence of demographic and biological data, we suggest that the species should be classified as Data Deficient by IUCN...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Conservation status; Forest species; Human footprint; Minimum convex polygon.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300252

Effects of experimental lightgaps and topography on enrichment plantings in a central Amazonian secondary forest
Provedor de dados: 36
Autores: BENTOS,Tony Vizcarra; NASCIMENTO,Henrique E. M.; VIZCARRA,Marisângela dos Anjos; WILLIAMSON,G. Bruce.
ABSTRACT Enrichment plantings into secondary forest are an important option in restoring species diversity and ecosystem services. However, little attention has been given to environmental requirements for species performance. This study evaluated the effects of lightgaps and topographic position on the growth and survival of four native tree species (Pouteria caimito, Garcinia macrophylla, Dipteryx odorata and Cynometra bauhiniaefolia) planted into a 26-year old secondary forest originating from abandoned pastures in the central Amazon Basin. Artificial lightgaps and control plots under closed canopy were uniformly distributed on plateaus and bottomlands near water bodies. Seedlings were planted randomly into the plots and monitored for 28 months....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abandoned pastures; Environmental conditions; Height growth; Light availability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300192

New records of Leptospira spp. in wild marsupials and a rodent in the eastern Brazilian Amazon through PCR detection
Provedor de dados: 36
Autores: SOUZA ROCHA,Katarine de; SCHUPP DE SENA MESQUITA,Gleiciane; SILVA FERREIRA,Maeli Fernanda; LEITE BARROS,Flávia de Nazaré; MACEDO,Renata Cecília Soares de Lima; ARAÚJO SARAIVA,Elane de; MENDES-OLIVEIRA,Ana Cristina; DUARTE CERQUEIRA,Valíria; SCOFIELD,Alessandra; GOES CAVALCANTE,Gustavo; ABEL,Isis; GUIMARÃES DE MORAES,Carla Cristina.
ABSTRACT We analyzed the presence of Leptospira spp. in liver and kidney tissue of wild marsupials and rodents trapped in a periurban forest in the eastern Brazilian Amazon. We examined 25 individuals of four marsupial and seven rodent species for the presence of the 16S rRNA gene of Leptospira in the DNA extracted from 47 liver and kidney tissue samples using PCR. We detected positive samples in 12% (3/25) of the individuals, in kidney fragments of two marsupial species (Didelphis marsupialis and Marmosops pinheiroi) and in a liver fragment of one rodent species (Echimys chrysurus). These are the first records of Leptospira spp. in M. pinheiroi and E. chrysurus and it is the first molecular survey of marsupials and rodents in the Brazilian Amazon.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Didelphimorphia; Rodentia; Live traps; Kidney; Liver; 16S rRNA.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400305

Thermoregulation mode, substrate temperature and camouflage efficiency affecting defensive behavior of lizards in Amazonia
Provedor de dados: 36
Autores: SOUZA,Erika; COELHO,Ana; SANTOS-JR,Alfredo P.; KAWASHITA-RIBEIRO,Ricardo Alexandre; FRAGA,Rafael de.
ABSTRACT In ectotherms, defensive responses to predators usually depend on cost-benefit relationships between death risk and the energy required to flee. In this study we investigate Amazonian lizards to test the hypothesis that the minimum predator approach distance (PAD) is influenced by temperature and camouflage. We test the hypothesis that PAD estimated for species with different thermoregulation modes respond differently to temperature and camouflage. We sampled 35 lizards of a heliotherm and a non-heliotherm species, for which we simulated a terrestrial visually oriented predator. Using a fixed-effects linear model, temperature positively affected PAD estimates, but the camouflage did not contribute to the model. Using a mixed linear model assuming...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cnemidophorus lemniscatus; Escape; Gonatodes humeralis; Heliotherm; Non-heliotherm; Predation pressure.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400339

Genetic diversity and population structure of endangered rosewood from the Peruvian Amazon using ISSR markers
Provedor de dados: 36
Autores: GUIZADO,Stalin Juan Vasquez; NADEEM,Muhammad Azhar; ALI,Fawad; BARUT,Muzaffer; HABYARIMANA,Ephrem; GÓMEZ,Tedi Pacheco; SANTILLAN,Jhon Antoni Vargas; CANALES,Esperanza Torres; GÓMEZ,Juan Carlos Castro; CHUNG,Gyuhwa; BALOCH,Faheem Shehzad.
ABSTRACT Rosewood, Aniba rosaeodora is an endangered species in Amazon forests and its natural stands have been heavily depleted due to over-exploitation for the cosmetic industry. This study aimed to investigate the genetic diversity and population structure of 90 rosewood accessions from eight localities in the Peruvian Amazon through 11 Inter Simple Sequence Repeats (ISSR) primers. The ISSR primers produced a sum of 378 bands, of which 375 (99.2%) were polymorphic, with an average polymorphism information content (PIC) value of 0.774. The mean effective number of alleles (Ne), Shannon informative index (I), gene diversity (He) and total gene diversity (Ht) were 1.485, 0.294, 0.453 and 0.252, respectively. Analysis of molecular variance (AMOVA) showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aniba rosaeodora; Endangered species; Gene flow; Germplasm; Molecular characterization.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300204

Vegetative rescue potential of Brazil nut through epicormic shoots on detached branches
Provedor de dados: 36
Autores: CONCEIÇÃO,Jônathan Brito Fontoura; FERREIRA,Sidney Alberto do Nascimento; LIMA,Natália Neves de.
ABSTRACT Obtaining juvenile material may favor the clonal propagation of Brazil nut, Bertholletia excelsa. We aimed to assess the emission of epicormic shoots on detached branches of Brazil nut trees as a function of the mother tree and branch diameter, in order to provide juvenile material for use in clonal multiplication. The experimental design was completely randomized in a 6 (mother trees) x 3 (stem diameter: &lt; 20 20-40 and 40-80 mm) factorial design, with four replicates. Every five days the number of shoots emitted was counted and the sprouting speed index and average sprouting time were calculated. The number of epicormic shoots and the sprouting speed index were dependent on the interaction between mother tree and branch diameter. Branches with...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Lecythidaceae; Asexual reproduction; Juvenility; Clonal forestry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300199

First record of Vanilla labellopapillata (Orchidaceae: Vanilloideae) in the state of Amazonas, Brazil
Provedor de dados: 36
Autores: KRAHL,Dayse Raiane Passos; KRAHL,Amauri Herbert; CHIRON,Guy; TERRA-ARAÚJO,Mário Henrique.
ABSTRACT The first record of Vanilla labellopapillata is presented for the state of Amazonas, Brazil, in the region of Manaus, now the western limit of the species, which was previously known only from the type locality in the state of Pará. A brief description is provided and taxonomic and ecological aspects of the species are discussed in the light of this new finding.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Adolpho Ducke Forest Reserve; Amazon; Dense ombrophilous forest; Hemiepiphyte; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300260

First record of the gray-legged tinamou, Crypturellus duidae, and other poor-soil specialist birds from peatlands in the Putumayo River basin, Loreto, Peru
Provedor de dados: 36
Autores: VÁSQUEZ-ARÉVALO,Francisco A.; ZÁRATE-GÓMEZ,Ricardo; SOCOLAR,Jacob B.; DÍAZ-ALVÁN,Juan; PÉREZ-PEÑA,Pedro E.
ABSTRACT Crypturellus duidae (Tinamidae) is a poor-soil specialist with isolated populations in Amazonia, and is considered restricted to white-sand forest habitats. We report the first record of C. duidae in a peatland forest in northern Peru, in the Putumayo River basin. Our record extends the known distribution of C. duidae between two disjoint areas of occurrence in Peru and Colombia, and shows its presence in peatland forest, another forest type on nutrient-poor soils. Additionally, we report the presence of other poor-soil specialist bird species that were previously registered in peatlands. Together with the new record of C. duidae, these bird records provide evidence of the diversity of poor-soil specialists in peatland forests.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Mauritia flexuosa; Palm swamps; White-sand forests; Amazonia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200155

Simultaneous selection of cupuassu tree and Brazilian mahogany genotypes in an agroforestry system in Pará state, Brazil
Provedor de dados: 36
Autores: ALVES,Rafael Moysés; CHAVES,Saulo Fabrício da Silva; GAMA,Marcos André Piedade; PEDROZA NETO,Jack Loureiro; SANTOS,Thalita Gomes dos.
ABSTRACT This study aimed to evaluate and select progenies and matrices of cupuassu-tree siblings, and to select Brazilian mahogany matrices with superior characteristics to be used in agroforestry systems (AFS). Twenty-five full cupuassu tree sibling progenies and one Brazilian mahogany half-sibling progeny were evaluated. The study was conducted for 14 years in a commercial property in Tomé Açu, Pará State, Brazil. The number of fruits and fruit yield per plant, as well as the rate of plants with symptoms of witches’ broom disease, were used as response variables for cupuassu. For mahogany, the following response variables were used: total height, commercial height, crown height, diameter at breast height and commercial wood volume. There were five...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Theobroma grandiflorum; Swietenia macrophylla; Genetic breeding; Intercropping.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300183

Oviposition of Minstrellus grandis (Lepidoptera: Riodinidae) in a harmful ant-plant symbiosis
Provedor de dados: 36
Autores: KAMINSKI,Lucas A.; CARNEIRO,Eduardo; DOLIBAINA,Diego R.; CASAGRANDE,Mirna M.; MIELKE,Olaf H. H.
ABSTRACT The oviposition behavior of the rare butterfly Minstrellus grandis (Callaghan, 1999) (Lepidoptera: Riodinidae) is recorded for the first time. Two females laid eggs on the old leaves of an unidentified Triplaris Loefl. ex L. (Polygonaceae), a myrmecophytic plant typically known as ‘Triplaria’ or ‘novice’ tree, inhabited by aggressive ‘taxi’ ants of the genus Pseudomyrmex Lund. 1831 (Hymenoptera: Formicidae). These observations suggest that M. grandis caterpillars live associated with one of the most harmful types of Amazon ant-plant symbiosis.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Carnivory; Myrmecophily; Host plant selection; Pachythonina; Social parasitism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300256

A feasible method to extract DNA from the cambium of high-canopy trees: from harvest to assessment
Provedor de dados: 36
Autores: MANGARAVITE,Érica; TERRA,Vanessa; HATTORI,Eric Koiti Okiyama; DAL’SASSO,Thaís Carolina da Silva; BHERING,Leonardo Lopes; OLIVEIRA,Luiz Orlando de.
ABSTRACT Many tropical trees have high canopies and their leaves are not accessible. Thus, the use of tissue from a more accessible organ (cambium) for DNA extraction may be an alternative for molecular studies. We adapted a feasible methodology for extracting genomic DNA from cambium tissue harvested in the field for the assessment with PCR. We tested three storage conditions (two buffers and a silica gel) and four periods of time after harvest. We used previously described protocols and tested them on three species that occur in Amazonian forests and other biomes: Anadenanthera peregrina var. peregrina, Cedrela fissilis, and Ceiba speciosa. Our protocol obtained suitable PCR-grade genomic DNA for DNA sequencing and microsatellite genotyping. We recommend...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Ascorbic acid; Dithiothreitol; DNA isolation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400335

Contribution to the knowledge of Camillea (Ascomycota, Graphostromataceae) in the Amazon forest in Pará, Brazil
Provedor de dados: 36
Autores: SANTANA,Marcos Diones Ferreira; COUCEIRO,Douglas de Moraes; COUCEIRO,Sheyla Regina Marques.
ABSTRACT Three species of the Ascomycetes genus Camillea were recorded in a fragment of Amazon rainforest in the region of Santarém, Pará state, Brazil. The occurrence of C. leprieurii, C. cyclops and C. bilabiata expand the range of distribution of these species in the state. Camillea leprieurii has previous records in the regions of Marabá, Oriximiná, Itaituba and Novo Progresso, while C. cyclops had been recorded in the west of the state. This is the first record of C. bilabiata for Pará. We provide a morphological description of the specimens and an identification key for Camillea species found in Pará.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Ascomycetes; Fungi; Mycodiversity; Xylariales.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300273

Description of the female and larval stage of Denopelopia amicitia Dantas, Hamada &amp;amp; Mendes (Diptera: Chironomidae)
Provedor de dados: 36
Autores: DANTAS,Galileu P.S.; HAMADA,Neusa.
ABSTRACT Denopelopia amicitia Dantas, Hamada &amp; Mendes was described based on the male and pupae collected in the Brazilian Amazon. Here we describe and illustrate the female and larva of this species. At both stages, D. amicitia is similar to Denopelopia atria Roback &amp; Rutter, which is the only species in the genus with all life stages known until now.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Aquatic insects; Tanypodinae; Pentaneurini; Amazonia; Brazil.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400313

Notes on natural history and behavior of Monodelphis glirina (Didelphimorphia, Didelphidae) and sympatry with congeners
Provedor de dados: 36
Autores: BRANDÃO,Marcus Vinicius; SEBASTIÃO,Harley; KUNIY,Adriana Akemi; CAVALIERI,Soraya; GODOY,Leandro Perez.
ABSTRACT Monodelphis glirina is endemic to the Amazon and its life habits and natural history are poorly known. Data on the species were collected in northern Mato Grosso, Brazil, including observations on its behavior and simpatry with congeners. During 10 expeditions and with an effort of 3,680 buckets-day, 29 M. glirina, three M. saci and one M. emiliae individuals were captured. Adults accounted for 82.8% of M. glirina captures, with a sex ratio of three males for each female. Capture of young and lactating females was seasonal, as both were captured only in the rainy season. We observed three events of M. glirina preying on rodents in pitfall traps, all with the same feeding behavior. We also report an individual climbing a tree at night, including a...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Amazon; Biology; Mato Grosso; Amazonian red-sided opossum; Monodelphis saci; Monodelphis emiliae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400309

Diversity of bacterial strains in biochar-enhanced Amazon soil and their potential for growth promotion and biological disease control in tomato
Provedor de dados: 36
Autores: CANIATO,Matheus Miranda; CATARINO,Aricléia de Moraes; SOUSA,Thiago Fernandes; SILVA,Gilvan Ferreira da; BICHARA,Karina Pryscilla de Araújo; CRUZ,Jeferson Chagas da; ASSIS,Luiz Alberto Guimarães de; HANADA,Rogério Eiji.
ABSTRACT The use of bacteria in growth promotion and biological control of plant diseases can minimize environmental contamination caused by the indiscriminate use of pesticides and chemical fertilizers. We aimed to evaluate growth promotion and biological control of Corynespora cassiicola in tomato seedlings mediated by beneficial bacteria isolated from a non-rhizospheric Amazon soil containing different amounts of biochar, and to identify to which groups of bacteria the strains belong. We obtained 200 strains of bacteria from experimental plots containing biochar doses of 0, 40, 80 and 120 t ha-1. Of these, 53 strains were selected by root colonization tests. Based on growth promotion parameters, 25 strains were screened, identified by molecular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beneficial bacteria; Corynespora cassiicola; Solanum lycopersicum; Target spot.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400278

Transferability of heterologous primers in Brycon falcatus
Provedor de dados: 36
Autores: PENHA,Diego dos Santos; SOUZA,Felipe Pinheiro de; LIMA,Ed Christian Suzuki de; URREA-ROJAS,Angela Maria; PANDOLFI,Victor César Freitas; YAMACHITA,Andrei Lincoln; POVH,Jayme Aparecido; LEITE,Natalia Gonçalves; PEREIRA,Ulisses de Pádua; LOPERA-BARRERO,Nelson Mauricio.
ABSTRACT The genusBryconcomprises fish species of significant socioeconomic and biological importance in Brazil. Despite that, the genetic knowledge about these species is scarce, especially regardingBrycon falcatus. Thus, the objective of this study was to evaluate the transferability of heterologous microsatellite primers inB. falcatus for the first time. Heterologous primers obtained from B. opalinus, B. hilarii, B. insignis, B. orbignyanus, B. amazonicus, Prochilodus argenteus, Prochilodus lineatus, Piaractus mesopotamicus, and Colossoma macropomum were evaluated. The primers that showed the best amplification patterns were applied to a sample of 22 individuals and the genetic parameters were calculated. Nine primers displayed satisfactory...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryconidae; Cross amplification; Genetic conservation; Genetic variability; SSR.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300232

Epidemiological and clinical aspects of snakebites in the upper Juruá River region, western Brazilian Amazonia
Provedor de dados: 36
Autores: SILVA,Ageane Mota da; COLOMBINI,Mônica; MOURA-DA-SILVA,Ana Maria; SOUZA,Rodrigo Medeiros de; MONTEIRO,Wuelton Marcelo; BERNARDE,Paulo Sérgio.
ABSTRACT This study addresses the clinical and epidemiological aspects of envenoming cases resulting from snakebites treated at a hospital in Cruzeiro do Sul, in the upper Juruá River region, western Brazilian Amazonia. The specific identity of snakes that caused the envenomings was inferred (a) from the diagnosis of patient symptoms and signs upon hospital admission, (b) by enzyme immunoassay for detection of Bothrops atrox and Lachesis muta venom from serum samples taken from patients before antivenom therapy, or (c) by direct identification of the snake, when it was brought along to the hospital or photographed. There were 133 snakebites (76.2 cases per 100,000 inhabitants) registered during one year (July 2017 to June 2018). Most snakebites (88.7%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Venomous animals; Snakes; Envenoming; Acre; Bothrops atrox; Enzyme immunoassay.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100090

GARRAPATAS DURAS (ACARI: IXODIDAE) DE COLOMBIA, UNA REVISIÓN A SU CONOCIMIENTO EN EL PAÍS
Provedor de dados: 37
Autores: ACEVEDO-GUTIÉRREZ,Leidy Yoana; PATERNINA,Luis Enrique; PÉREZ-PÉREZ,Juan Camilo; LONDOÑO,Andrés Felipe; LÓPEZ,Gustavo; RODAS,Juan David.
RESUMEN Las garrapatas son artrópodos de gran impacto sobre la economía pecuaria y la salud humana debido a las pérdidas generadas en la producción, y a su capacidad de transmitir microorganismos. Pese a la evidencia de circulación de una gran diversidad de garrapatas en Colombia, no se cuenta con compilaciones actualizadas de la variedad de especies presentes, por lo cual los autores presentan una revisión de literatura sobre las garrapatas de la familia Ixodidae reportadas en Colombia incluyendo su distribución geográfica, sus hospederos y los microorganismos reportados en aquellas especies registradas en este país. En la recopilación se evidenció la presencia en Colombia de diferentes especies de garrapatas de los géneros Amblyomma, Ixodes,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artrópodos vectores; Artrópodos hematófagos; Bacteria; Distribución espacial; Infestación; Virus.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100126

IDENTIFICACIÓN DE POLIMORFISMOS EN EL GEN RXAM1 DE YUCA Y SU ASOCIACIÓN CON LA RESISTENCIA A LA BACTERIOSIS VASCULAR
Provedor de dados: 37
Autores: BARRERA,Andrea del Pilar; SOTO-SEDANO,Johana; LÓPEZ CARRASCAL,Camilo Ernesto.
RESUMEN La yuca (Manihot esculenta Crantz) es un cultivo importante en regiones del trópico que proporciona alimento para cerca de 1000 millones de personas en todo el mundo. La enfermedad bacteriana más importante es la bacteriosis vascular causada por Xanthomonas axonopodis pv. manihotis (Xam). Recientemente se logró identificar un gen de resistencia denominado RXAM1, el cual codifica para una proteína que posee un dominio LRR (Leucine-Rich Repeat) extracelular y un dominio STK (Serine Threonine Kinase) citoplasmático. RRXAM1 colocaliza con un QTL que explica el 13 % de la resistencia a la cepa CIO136 de Xam. En este trabajo se evaluó la respuesta a la infección con la cepa XamCIO136 en diez diferentes variedades de yuca lo cual permitió identificar que...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alelo; Diversidad; Receptor; Síntomas de plantas.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200185

DIURNAL FEEDING BEHAVIOUR OF CRAB-EATING RACCOON UPON A PARADOXAL FROG, WITH A REVIEW OF ITS DIET
Provedor de dados: 37
Autores: CERON,Karoline; CARVALHO,Priscila S.; MÖCKLINGHOFF,Lydia; SANTANA,Diego José.
ABSTRACT The crab-eating raccoon (Procyon cancrivorus) is considered one of the less-studied Neotropical carnivores. Observations about its behavior are difficult as it is mainly nocturnal, shy, and inconspicuous. This species is considered opportunistic, with a frugivorous-omnivorous diet. It is known to feed on fruits and invertebrates as well as small mammals and lizards. Herein, we describe a first direct observation of a crab-eating raccoon hunting for frogs during the daytime. It is also a first record of predation on a paradoxal frog (Pseudisplatensis) by P. cancrivorus. We further present a detailed literature review about its diet. We compiled a total of 14 papers published from 1986 to 2019, including eight studies that characterize the diet of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pantanal; Procyon cancrivorus; Pseudis platensis; Trophic ecology.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200359

BIOFERTILIZATION WITH CHLOROPHYTA AND CYANOPHYTA: AN ALTERNATIVE FOR ORGANIC FOOD PRODUCTION
Provedor de dados: 37
Autores: ORTIZ-MORENO,Martha Lucía; SOLARTE-MURlLLO,Laura Vanessa; SANDOVAL-PARRA,Karen Ximena.
ABSTRACT Chlorophyta and Cyanophyta are photosynthetic organisms characterized by their biochemical plasticity, which has allowed them to develop in different environments and have a faster growth rate than plants. Depending on the species and environmental conditions, these organisms can produce nitrogenous enzymes, for atmospheric nitrogen fixation; phosphatases, that solubilize phosphorus; phytohormones, that promote plant growth; and hygroscopic polysaccharides, that prevent erosion and improve soil characteristics. In this sense, the aim of this review was to analyze the available information on the use of Chlorophyta and Cyanophyta as biofertilizers and their potential application in organic food production. Multiple studies and researches were found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biofertilizers; Cyanobacteria; Green algae; Organic agriculture.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200303

NOTAS SOBRE LA REPRODUCCIÓN, MORFOLOGÍA Y ECOLOGÍA DE Pareques acuminatus (TELEOSTEI: SCIAENIDAE), EN LA REGIÓN DE SANTA MARTA, CARIBE COLOMBIANO
Provedor de dados: 37
Autores: ROSA,Yesica DE LA; ACERO P,Arturo; GARCÍA-URUEÑA,Rocío.
RESUMEN Pareques acuminatus (familia Sciaenidae) es una especie carnívora de tamaño pequeño, que se distribuye en el Atlántico occidental entre Carolina del Norte y Bermudas hasta Brasil. Los estudios sobre la biología y ecología de P. acuminatus son escasos y en Colombia no se han realizados trabajos concernientes a la especie. El propósito de este estudio fue conocer aspectos de reproducción, morfología y ecología con el fin de ampliar su conocimiento en el Caribe colombiano. Entre 2017 y 2018 se realizaron capturas en cinco localidades por medio de buceo libre y se realizaron censos visuales del hábitat donde fue observada. Se evaluó la morfometría y merística, se identificaron las fases reproductivas y se estimó la fecundidad parcial mediante el método...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Merística; Morfometría; Peces arrecifales; Esciénido.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300374

A NEW SPECIES OF Halicyclops (Copepoda, Cyclopoida, Halicyclopinae) FROM AN ESTUARINE SYSTEM OF THE CARIBBEAN COAST OF COLOMBIA
Provedor de dados: 37
Autores: FUENTES-REINÉS,Juan M.; SUÁREZ-MORALES,Eduardo.
ABSTRACT Plankton samples obtained from the Ciénaga Grande de Santa Marta, an extensive estuarine system in northern Colombia, yielded adult male and female specimens of an undescribed halicyclopine cyclopid copepod of the genus Halicyclops. Cyclopid copepods are frequently found in freshwater and transitional habitats. Members of the subfamily Halicyclopinae are chiefly brackish water forms with a few freshwater species. The new species described herein is assignable to the group of species "F" of Halicyclops (sensu Pesce, 2018) with a 2333 exopodal spine formula. Currently, this group contains five species and one subspecies. Halicyclopsgutierrezi sp. n. can be distinguished from its known congeners by the absence of an anal operculum, the relative...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microcrustaceans; Mangroves; Microcrustaceans; Shallow water; Taxonomy; Zooplankton.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100014

RESPUESTAS FISIOLÓGICAS Y CAPACIDAD ANTIOXIDANTE DE Chlorella vulgaris (Chlorellaceae) EXPUESTA A FENANTRENO
Provedor de dados: 37
Autores: CALDERÓN-DELGADO,Ivonne C.; MORA-SOLARTE,Diego A.; VELASCO-SANTAMARÍA,Yohana M.
RESUMEN Los hidrocarburos aromáticos tienen un alto potencial toxicológico, por lo que su evaluación en organismos acuáticos es de gran importancia. La microalga Chlorella vulgaris fue seleccionada, por ser una de las especies de algas más dominantes en el agua y por su potencial para degradar o absorber diferentes xenobióticos. El objetivo fue evaluar la toxicidad en C. vulgaris expuesta a fenantreno (PHE), evaluando parámetros fisiológicos como la densidad celular, contenido de clorofila a y clorofila b y actividad enzimática de superóxido dismutasa (SOD) y catalasa (CAT) que definan respuestas tóxicas a corto plazo. Se evaluaron cinco diferentes concentraciones (0,1; 1,0; 10; 100 y 1000 µg PHE. L-1), un tratamiento control solvente (acetona) y control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidante; Hidrocarburo aromático policíclico; Inhibición de crecimiento; Microalga; Toxicidad.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200225

COMPONENTES QUÍMICOS Y ACTIVIDAD ANTIMICROBIANA DEL ACEITE ESENCIAL DE Lasiocephalus ovatus (Asteraceae) QUE CRECE EN ECUADOR
Provedor de dados: 37
Autores: ARAUJO-BAPTISTA,Liliana; VIMOS-SISA,Katerine; CRUZ-TENEMPAGUAY,Rosa; FALCONÍ-ONTANEDA,Félix; ROJAS-FERMÍN,Luis; GONZÁLEZ-ROMERO,Ana Carolina.
RESUMEN Ecuador es uno de los países más ricos en biodiversidad y endemismo del mundo, y cerca de 3200 especies de plantas tienen usos medicinales. El objetivo de esta investigación fue evaluar la composición química y el efecto antimicrobiano del aceite esencial de Lasiocephalus ovatus Schltdl. (Asteraceae) colectada en la provincia de Chimborazo, Ecuador. Las partes aéreas de L. ovatus fueron sometidas a hidrodestilación para obtener el aceite esencial, el cual fue analizado mediante cromatografía de gases acoplada a espectrometría de masas. La actividad fue evaluada frente a cinco bacterias y una levadura usando la técnica de microdilución en caldo en microplacas de 96 pozos. El rendimiento del aceite fue de 0,05 % y 27 compuestos fueron identificados,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibacteriano; Antifúngico; Constituyentes químicos; Extracto vegetal volátil.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100022

MARCADORES SEROLÓGICOS DEL VIRUS DE HEPATITIS B EN PUEBLOS INDÍGENAS DEL ESTADO AMAZONAS, VENEZUELA
Provedor de dados: 37
Autores: CARDONA,Nathalia; LEON,Thaimar.
RESUMEN Venezuela presenta un nivel de prevalencia intermedia de Hepatitis B, con cuatro focos de alta endemicidad asociados principalmente a población indígena. Las prevalencias halladas en el Amazonas venezolano tienen distintas distribuciones entre los pueblos, observándose diferentes particularidades epidemiológicas. El objetivo del presente trabajo fue reportar la prevalencia de VHB en población indígena de diferentes pueblos y regiones geográficas del estado Amazonas, que no habían sido evaluados hasta la fecha, mediante la determinación de los marcadores serológicos: Antígeno de Superfìcie del Virus de Hepatitis B (AgsHB) y Anticuerpos Anticore (Anti-HBc). Se estudiaron 1390 individuos de 15 pueblos indígenas (Baniva, Baré, Curripaco, Jivi, Mapoyo,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amerindios suramericanos; Hepatitis Viral Humana; Prevalencia.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300293

SEROPOSITIVIDAD DE VIH Y FACTORES ASOCIADOS EN DONANTES DE UN BANCO DE SANGRE DE LA CIUDAD DE MEDELLÍN - COLOMBIA, 2005 - 2018
Provedor de dados: 37
Autores: CARDONA-ARIAS,Jaiberth Antonio; PALACIOS-MENA,Viviana Orleidy; DIZU-CALAMBAS,Kely Fernanda; FLÓREZ-DUQUE,Jenniffer; HIGUITA-GUTIÉRREZ,Luis Felipe.
RESUMEN El objetivo de esta investigación fue estimar la seropositividad de VIH y factores asociados en donantes de un banco de sangre de la ciudad de Medellín - Colombia, 2005 - 2018. Se realizó un estudio transversal en 166 603 donantes del banco de Sangre de la Escuela de Microbiología de la Universidad de Antioquia. Las estimaciones se basaron en proporciones y razones de odds con sus intervalos de confianza del 95 %. La mayoría de donantes fueron del Valle de Aburrá, 50,2 % hombres, 65,4 % altruistas, 59,3 % de primera vez y 81,2 % captados fuera de las instalaciones del Banco. La seropositividad general de VIH fue 0,275 % (IC 95 %=0,25-0,30), en las frecuencias específicas fue del 0,324 % en hombres y 0,224 % en mujeres; 0,299 % en donantes con edad...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Donantes de sangre; Infecciones por VIH; Medicina transfusional; Prevalencia.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300386

ACTIVIDAD BIOCONTROLADORA IN VITRO DE MACROHONGOS CONTRA DIFERENTES HONGOS FITOPATÓGENOS
Provedor de dados: 37
Autores: PATINO,Manuel; NIETO-RAMIREZ,Ivonne Jeannette; CHEGWIN-ANGARITA,Carolina; TORRES-ROJAS,Esperanza.
RESUMEN Las enfermedades causadas por hongos en las plantas son una gran preocupación en la producción agrícola. Los macromicetos son una fuente potencial de compuestos antifúngicos que podrían usarse para controlar estas enfermedades. El objetivo de este estudio fue evaluar la actividad biocontroladora in vitro de cuatro macromicetos de los géneros Xylaria, Agrocybe, Psilocybe y Stereum sobre diferentes hongos fitopatógenos. Para ello, se determinó la curva de crecimiento de los macrohongos en dos medios: papa dextrosa (PDA) y salvado de trigo (ST) y se caracterizaron las interacciones y la inhibición in vitro de hongos fitopatógenos. Se realizó la extracción y caracterización de metabolitos secundarios de la biomasa, el medio extracelular y del...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonismo; Cinética del crecimiento; Cultivo dual; Metabolitos secundarios; Parasitismo.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200265

AMPLIACIÓN DEL ÁMBITO GEOGRÁFICO Y DE LA TALLA MÁXIMA DE Kinosternon chimalhuaca (TESTUDINES: KINOSTERNIDAE)
Provedor de dados: 37
Autores: LOPEZ-LUNA,Marco Antonio; ESCOΒEDO-GALVÁN,Armando H.; CUPUL-MAGAÑA,Fabio G.
RESUMEN Kinosternon chimalhuaca (Casquito de Jalisco) es una tortuga kinosternida endémica de México. La talla máxima de longitud de caparazón (CL) es de 160 mm en machos y de 130 mm en hembras. Tiene un pequeño rango de distribución en la costa del Pacífico de Jalisco y Colima (México), desde el río Tuito en Jalisco hasta el río Cihuatlán en el noroeste de Colima. Este nuevo registro en Puerto Vallarta, Jalisco, extiende su distribución al menos 32 km al norte de la localidad más septentrional conocida. Se registra un nuevo tamaño máximo (CL) para la especie de 172,00 mm (un macho).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeografia; Biometria; Casquito de Jalisco; Distribución; México.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300431

TERAPIA LARVAL CON Musca domestica EN EL TRATAMIENTO DE LA ÚLCERA LEISHMÁNICA EN UN MODELO MURINO
Provedor de dados: 37
Autores: REYES PARRADO,Adriana; ARRIVILLAGA-HENRÍQUEZ,Jazzmin; OVIEDO,Milagros; SCORZA DAGERT,José Vicente; GARRIDO,Lenin RON.
RESUMEN La leishmaniosis es una enfermedad con gran impacto en salud pública dado a las características de las lesiones tegumentarias. El tratamiento experimental con terapia larval (TL) ha mostrado su uso potencial para la cura de la leishmaniosis, sin embargo, se han utilizado especies de moscas para TL en heridas causadas por Leishmanial que no son de fácil colecta y cultivo bajo condiciones de laboratorio como Lucilia sericata o Calliphora vicina. El objetivo del presente trabajo fue usar una especie de mosca de fácil colecta, y de alta fecundidad como la Musca domestica para aplicarlas en TL de úlceras leishmánicas. Se realizó un estudio cuali-cuantitativo, de tipo descriptivo, mediante un diseño experimental empleado un modelo animal (Mesocricetus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimonial; Cicatrización; Leishmaniasis; Moscas; Tratamiento; Úlcera.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100082

INFLUENZA REQUIERE UN MANEJO BAJO LA PERSPECTIVA DE "UNA SALUD" EN COLOMBIA
Provedor de dados: 37
Autores: URIBE-SOTO,Manuel; RAMIREZ-NIETO,Gloria.
RESUMEN La influenza es una infección viral de importancia y distribución mundial, cuyo agente causal es el Alfainfluenzavirus o influenza virus tipo A (IAV), el cual se caracteriza por poseer un genoma de tipo ssRNA segmentado, aspecto que le confiere una alta variabilidad y capacidad recombinante. Esto, sumado al amplio rango de huéspedes susceptibles y la posibilidad de transmisión entre especies, se constituye en un reto tanto para la salud humana como para la animal. El IAV es capaz de infectar una amplia variedad de huéspedes, incluyendo múltiples especies de aves y mamíferos, tanto domésticas como salvajes y al humano, así como a reptiles y anfibios, entre otros. Dentro de los Alphainfluenzavirus se reconocen 16 subtipos de Hemaglutinina (HA) y...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colaboración intersectorial; Interacciones huésped-patógeno; Salud pública; Transmisión; Virus de la influenza tipo A.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300421

LIPID VESICLES: APPLICATIONS, PRINCIPAL COMPONENTS AND METHODS USED IN THEIR FORMULATIONS. A REVIEW
Provedor de dados: 37
Autores: CAMILO,Cicera J.; LEITE,Débora O. D.; SILVA,Angelo R. A. e; MENEZES,Irwin R. A.; COUTINHO,Henrique D. M.; COSTA,José G. M. da.
ABSTRACT Liposomes and niosomes are currently the most studied lipid vesicles in the nanomedicine field. The system formed by a phospholipid bilayer in aqueous medium allows these vesicles to carry both hydrophilic and lipophilic compounds, providing an increase in solubility of drugs already used in conventional therapy. The focus on the development of these vesicles should be directed to determining the ideal composition, with low toxicity, biocompatibility and which remains stable for long periods. These characteristics are related to the components used for formulation and the substances that will be encapsulated. Another important point relates to the methods used during formulation, which are important in determining the type of vesicle formed,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Components; Formulation; Liposomes; Nanomedicine; Niosomes.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200339

ON BIRDS OF SANTANDER-BIO EXPEDITIONS, QUANTIFYING THE COST OF COLLECTING VOUCHER SPECIMENS IN COLOMBIA
Provedor de dados: 37
Autores: ARBELÁEZ-CORTÉS,Enrique; VILLAMIZAR-ESCALANTE,Daniela; RONDÓN-GONZÁLEZ,Fernando.
ABSTRACT Several scientific reasons support continuing bird collection in Colombia, a megadiverse country with modest science financing. Despite the recognized value of biological collections for the rigorous study of biodiversity, there is scarce information on the monetary costs of specimens. We present results for three expeditions conducted in Santander (municipalities of Cimitarra, El Carmen de Chucurí, and Santa Barbara), Colombia, during 2018 to collect bird voucher specimens, quantifying the costs of obtaining such material. After a sampling effort of 1290 mist net hours and occasional collection using an airgun, we collected 300 bird voucher specimens, representing 117 species from 30 families. Such collection represents one of the largest series...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Biological collections; Eastern Andes; Middle Magdalena valley; Ornithology.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100037

DETERMINATION OF HEMATOLOGICAL VALUES OF COMMON CROCODILE (Caiman crocodilus fuscus) IN CAPTIVITY IN THE MAGDALENA MEDIO OF COLOMBIA
Provedor de dados: 37
Autores: GRIJALBA O,Juana; FORERO,Elkin; CONTRERAS,Angie; VARGAS,Julio; ANDRADE,Roy.
ABSTRACT Caiman zoo breeding (Caiman crocodilus fuscus) has been developing with greater force in Colombia since the 90s. It is essential to evaluate the physiological ranges of the species to be able to assess those situations in which their health is threatened. The objective of the present study was to determine the typical hematological values of the Caiman (Caiman crocodilus fuscus) with the aid of the microhematocrit, the cyanmethemoglobin technique, and a hematological analyzer. The blood samples were taken from 120 young animals of both sexes in good health apparently (males 44 and females 76). The samples were taken from the coccygeal vein between the second and third interscalar space with lilac lid vacutainer tube whit acid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Blood samples; Hematology wildlife; Zoo breeding.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100075

EXTRACCIÓN DE SUSTANCIAS BIOACTIVAS DE Pleurotos ostreatus (PLEUROTACEAE) POR MACERACIÓN DINÁMICA
Provedor de dados: 37
Autores: DUARTE-TRUJILLO,Astrid Stefania; JIMÉNEZ-FORERO,Javier Alexander; PINEDA-INSUASTI,Julio; GONZÁLEZ-TRUJILLO,Camila Alejandra; GARCÍA-JUÁREZ,Magdiel.
RESUMEN La extracción de compuestos bioactivos de Pleurotus ostreatus por maceración dinámica, es un proceso sencillo y económico, que normalmente presenta baja eficiencia. El objetivo de este trabajo fue evaluar el proceso de extracción para determinar qué tratamiento permite la mayor eficiencia, analizando la influencia de los factores de estudio: concentración de etanol (50 %, 80 %, 95 %) y relación sólido/solvente (1:10, 1:20, 1:30). Se maceraron 5 g de polvo fúngico en etanol acuoso durante 90 minutos, a 150 rpm, 25 °C y tamaño de partícula de 0,5 a 1,0 mm. Se trataron los datos mediante estadística paramétrica con un nivel de confianza del 95 %. Los resultados revelaron que la mayor eficiencia de extracción total (40,9 %) en base seca se obtuvo con...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alimentos funcionales; Extractos; Hongos comestibles; Optimización.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100061

REGISTROS DE Dryophthorinae (Coleóptera: Curculionidae) DE LA COSTA CARIBE COLOMBIANA
Provedor de dados: 37
Autores: Pava,Nataly de la; García,Mayra A.; Brochero,Carlos E.; Sepúlveda-Cano,Paula A.
RESUMEN Dyophthorinae es una subfamilia con varias especies asociadas principalmente al consumo de monocotiledóneas, siendo consideradas en Colombia plaga en cultivos de palmas, musáceas y granos como maíz, trigo, sorgo y arroz. En este documento se presenta un listado de las especies de Dryophthorinae para los departamentos de la costa Caribe colombiana, construido a partir de las visitas a colecciones entomológicas y de la revisión de literatura. Para la región se registraron 11 especies: Cosmopolites sordidus, Dynamis borassi, Mesocordylus striatus, Metamasius hemipterus, M. hebetatus, Polytus mellerborgii, Rhynchophorus palmarum, Rhodobaenus sp., Rhinostomus barbirostris, Sitophilus zeamais y S. oryzae, algunas de las cuales se documentan por primera...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Curculionidae; Dispersión; Monocotiledóneas; Picudos; Primer registro.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100096

FOOD SELECTION AND USE OF SPACE BY Didelphis pernigra (DIDELPHIDAE: MAMMALIA) IN A SUBURBAN ANDEAN ENVIRONMENT
Provedor de dados: 37
Autores: Suárez-Cáceres,Gina Patrícia; Adinolfi,Cristiano; Sánchez,Francisco.
ABSTRACT Cities have grown throughout the Andes and we know little about the ecology of those species that tolerate them, limiting our options to do conservation. We applied optimal foraging theory to examine the behavior of the Andean White-eared Opossum (Didelphispernigra), in a suburban area in Bogotá, Colombia. We used the giving-up density technique, which uses the amount of food left in a feeding patch, to evaluate whether the opossum's foraging costs were affected by the height of food from the ground, and the quality and quantity of food. We also evaluated whether the spatial heterogeneity of the study site affected the opossum's foraging. We used an artificial feeding patch to test these ideas. When food was either concentrated and, in less amount...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Andes; Giving-up density; Optimal patch use; Predation risk; Urban ecology.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300359

PRIMERA APROXIMACIÓN A LA FAUNA FLEBOTOMÍNEA (PSYCHODIDAE: PHLEBOTOMINAE) DEL DEPARTAMENTO DE ATLÁNTICO
Provedor de dados: 37
Autores: GOENAGA-MAFUD,Loraine Carolina; EYES-ESCALANTE,Melisa; FLOREZ-ARRI ETA,Fernando.
RESUMEN Dentro del género Lutzomyia algunas especies son vectores de la enfermedad llamada leishmaniasis, la cual tiene implicaciones en la salud pública, desarrollando diferentes manifestaciones clínicas como leishmaniasis cutánea, visceral y mucocutánea que afectan altamente al ser humano. El objetivo de este estudio fue realizar un inventario de las especies del género Lutzomyia presentes en seis zonas del departamento del Atlántico. Se implementaron tres técnicas de capturas tradicionales: trampas CDC entre 18:00-06:00, trampa Shannon entre 19:00-22:00 y búsqueda activa de flebotomíneos con aspiradores bucales en troncos, bases de árboles y otros sitios entre 09:00-11:00 y 16:00-17:30, en seis municipios del departamento del Atlántico, Colombia. Se...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Costa Caribe colombiana; Entomología; Insectos vectores; Leishmania; Phlebotomus.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300284

ENERGÍA CALÓRICA, BIOMASA Y ESTRUCTURA DE LOS MACROINVERTEBRADOS ACUÁTICOS EN LA RESERVA LA NITRERA, CONCORDIA, ANTIOQUIA, COLOMBIA
Provedor de dados: 37
Autores: RUIZ-TORO,Julián Andrés; AGUIRRE-RAMÍREZ,Néstor Jaime; SERNA-LÓPEZ,Juan Pablo; HERNÁNDEZ-ATILANO,Esnedy; VÉLEZ-MACIAS,Fabio de Jesús.
RESUMEN El embalse La Nitrera se encuentra localizado a 2140 m.s.n.m. en el municipio de Concordia, departamento de Antioquia (Colombia) y es la única fuente de abastecimiento de agua del municipio. La operación de un embalse sobre un sistema lótico afecta la estructura y ensamblaje de sus ecosistemas acuáticos. Esta investigación tuvo como propósito analizar la distribución de la biomasa de los macroinvertebrados acuáticos antes y después del embalse, con el fin de determinar el impacto de este sobre las comunidades hidrobiológicas. Para tal fin, se analizaron las variables hidrobiológicas en época seca, de lluvia y en diferentes periodos de transición entre el año 2016 y 2017. Se investigaron cuatro estaciones de monitoreo, realizando la determinación,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estabilidad; Grupos funcionales; Modelos; Red trófica; Termogravimetría.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100029

GERROMORPHA: INSECTOS SEMIACUÁTICOS, DESARROLLO EN LA ÚLTIMA DÉCADA EN COLOMBIA
Provedor de dados: 37
Autores: PADILLA-GIL,Dora Nancy.
RESUMEN El presente trabajo resume las principales tendencias en el conocimiento de los gerromorfos en el ámbito mundial, relacionadas con los avances en sistemática molecular, su uso como indicadores de ambientes cambiantes y la ampliación del saber en varios países Neotropicales. Se revisa la información publicada sobre los Gerromorpha en la última década (2009-2019) en Colombia y se contemplan los diferentes aspectos biológicos, taxonómicos, ecológicos y de distribución geográfica. El desarrollo y el progreso sobre los heterópteros semiacuáticos son la base del emprendimiento de otras investigaciones en Colombia y en el Neotrópico, especialmente en regiones como Mesoamérica y Sudamérica.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gerridae; Hemiptera; Heteroptera; Región Neotropical; Taxonomía; Veliidae.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300414

THE IMPORTANCE OF ANTIMICROBIAL COMPOUNDS PRODUCED BY BENEFICIAL BACTERIA ON THE BIOCONTROL OF PHYTOPATHOGENS
Provedor de dados: 37
Autores: CESA-LUNA,Catherine; BAEZ,Antonino; QUINTERO-HERNÁNDEZ,Verónica; CRUZ-ENRÍQUEZ,Joel DE LA; CASTAÑEDA-ANTONIO,Ma Dolores; MUÑOZ-ROJAS,Jesús.
ABSTRACT Bacteria produce antimicrobial compounds to compete for nutrients and space in a particular habitat. Antagonistic interactions can be evaluated by several methodologies including the double-layer agar and simultaneous inhibition assays. Among the well-known inhibitory substances produced by bacteria are the broad-spectrum antibiotics, organic acids, siderophores, antifungal, and bacteriocins. The most studied bacterial genera able to produce these inhibitory substances are Enterococcus, Lactococcus, Streptomyces, Bacillus, Pseudomonas, Klebsiella, Escherichia, and Burkholderia. Some beneficial bacteria can promote plant growth and degrade toxic compounds in the environment representing an attractive solution to diverse issues in agriculture and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonism; Antibiotic; Competition; Inhibition; PGPR.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100140

VALOR TAXONÓMICO DE NUEVOS CARACTERES ANATÓMICOS DE LA LÁMINA FOLIAR DE TRES ESPECIES DE Cecropia (Urticaceae: Cecropieae) EN CÓRDOBA, COLOMBIA
Provedor de dados: 37
Autores: VARILLA-GONZÁLEZ,Jean David; RUIZ-VEGA,Rosalba.
RESUMEN Se describen las características anatómicas de la epidermis foliar y mesófilo de las especies Cecropia longipes, C. membranácea y C. peltata. El material vegetal fue recolectado en Córdoba, Colombia. Se realizaron disociaciones epidérmicas y cortes transversales de la lámina media mediante técnicas histológicas convencionales. Los caracteres evaluados, forma y el contorno de las células epidérmicas, indumento aracnoideo abaxial, organización de las células de la base de los tricomas, idioblastos epidérmicos, tipo y distribución de los estomas, mostraron diferencias que permiten separar a C. membranacea de la otras especies. Las especies C. longipes y C. peltata son similares en la anatomía de la lámina foliar, sin embargo, es posible distinguirlas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cecropiaceae; Cuerpos perla; Estoma isotricítico; Hojas anfistomáticas; Pelos cistolíticos.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200246

Una "araña pirata" (Araneae: Mimetidae) en el ámbar del mioceno temprano y actualización del listado de arañas fósiles para Chiapas, México
Provedor de dados: 37
Autores: GARCÍA-VILLAFUERTE,Miguel Ángel.
RESUMEN En busca de contribuir al conocimiento de la araneofauna fósil en Chiapas, México, se describe y fotografía una "araña pirata" (Araneae: Mimetidae) descubierta en una pieza de ámbar del municipio de Simojovel de Allende, con una edad de 23 millones de años (Ma). Esta familia fue citada anteriormente en el ámbar del Báltico, República Dominicana y la India. Al mismo tiempo, se actualiza el listado arañas fósiles en el ámbar de Chiapas, registrándose a la fecha 20 especies descritas. Subsecuentemente, este número podría aumentar, con la revisión de nuevo material.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arachnida; Catálogo; Fósiles; Paleontología; Sistemática.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100155

CRECIMIENTO, REPRODUCCIÓN Y HÁBITOS ALIMENTARIOS DE Stellifer melanocheir (Sciaenidae) EN EL GOLFO DE TORTUGAS, PACÍFICO COLOMBIANO
Provedor de dados: 37
Autores: MURIEL-HOYOS,Felipe; CARMONA-GUERRA,Andrés Felipe.
RESUMEN Stellifer melanocheir es una especie de pez abundante en la fauna acompañante de la pesca artesanal de camarón de aguas someras. Con el objetivo de estudiar el crecimiento la reproducción y hábitos alimentarios de la especie, se recolectaron 751 individuos (540 hembras, 187 machos y 24 indeterminados) entre septiembre de 2011 y abril de 2012 de la pesca artesanal de camarón de aguas someras del Golfo de Tortugas, Colombia. Los parámetros de crecimiento representados por la ecuación de Von Bertalanffy Lt = 17,8(1-e[-0,62(t+0,34)]) mostraron que la especie presentó un crecimiento alométricamente positivo, más rápido que algunas especies congéneres. Las hembras alcanzan la talla media de madurez (L50) a los 11,7 cm y los machos a 10,9 cm. Se reproduce...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carcinófago; Dieta; Fauna acompañante; Madurez; Pesca artesanal.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200210

JÓVENES Y AISLADAS PERO DIVERSAS: ESTRUCTURA Y COMPOSICIÓN FLORÌSTICA DE MATAS DE MONTE EN ARAUCA
Provedor de dados: 37
Autores: PÉREZ-BUITRAGO,Néstor; GUÍO-BLANCO,Paola Andrea; MIJARES SANTANA,Francisco Javier.
RESUMEN Se analizó la composición floristica y estructura de tres fragmentos de bosque rodeados de sabana inundable, localmente llamados "matas de monte", en la zona rural del municipio de Arauca (Arauca). En cada mata de monte (MM) el área de muestreo fue de 1000 m2 (0,1 Ha) para la vegetación con DAP &gt; 10 cm, 500 m2 para la vegetación con DAP: 5 - 9,9 cm y 10 m2 para la vegetación con DAP &lt; 5 cm. Se registraron 40 familias, 79 géneros y 84 especies. Las familias con mayor riqueza de especies fueron Fabaceae, Malvaceae, Rubiaceae, Apocynaceae y Euphorbiaceae. Las especies con mayores Indices de Valor de Importancia (IVI) fueron Sapium glandulosum en la MM1 (36,2 %) y MM2 (23,9 %) y Vitex orinocensis var. multiflora en la MM3 (40,1 %). Las MM...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversidad; Bosque; Llanos orientales; Orinoquia; Sabana inundable.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200280

AMMONIA TOXICITY AFFECTS CATIONS UPTAKE AND GROWTH IN PAPAYA PLANTS INCLUSIVE WITH SILICON ADDITION
Provedor de dados: 37
Autores: SANTOS SILVA,Bruna; MELLO PRADO,Renato de; CALERO HURTADO,Alexander; APARECIDA DE ANDRADE,Renata; PEREIRA DA SILVA,Gilmara.
ABSTRACT High ammonia (NH4 +) concentration can exert stress on many plants, which causes nutritional disorders and reduction on plant growth. However, depending on the intensity of the stress, it may be attenuated by silicon. In this work, the response of impact of cations and silicon accumulations and plant growth in cultivated papaya plants was investigated under different toxic ammonia concentrations regardless of the presence of silicon (Si). The experiment was conducted at the Universidade Estadual Paulista (UNESP) with papaya seedlings, variety 'Grupo Formosa' (Calimosa híbrida 01), grown in a glass greenhouse, in 1.7 dm3 pots filled with pine and coconut fiber-based substrate. The experimental design was a randomized block design, in a 5 x 2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carica papaya; Biomass; Phytotoxicity; Nitrogen; Nutrients.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300345

EVALUACIÓN DE ENFERMEDADES TRANSMITIDAS POR VECTORES EN PERROS DE UN ÁREA DE CLIMA SUB-FRÍO DE MÉXICO
Provedor de dados: 37
Autores: REYES-CLÍMACO,Laura; ROMERO-NÚÑEZ,Camilo; HEREDIA-CARDENAS,Rafael.
RESUMEN La distribución geográfica de las enfermedades transmitidas por vectores está influenciada por una dinámica compleja de factores ambientales y sociales y por el impacto cambiante de la transmisión de sus vectores, huéspedes intermedios y reservorios. El objetivo del presente estudio fue evaluar la seropositividad a anticuerpos anti-Ehrlichia canis, Anaplasma phagocytophilum y Borrelia burgdorferia y la seropositividad a antígenos de Dirofilaria immitis en perros de un área de México con un clima semifrío. Se tomaron 100 muestras de sangre de caninos de hogares privados y en clínicas veterinarias del estado de Amecameca de Juárez, Estado de México. El análisis de las muestras se llevó a cabo mediante un kit comercial de ELISA (Test SNAP® 4Dx® Plus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cambio climático; Epidemiología; Vectores de enfermedades.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200219

PARASITIC HELMINTHS INFECTING Eucinostomus melanopterus AND Eugerres plumieri (PERCIFORMES: GERREIDAE), FROM BOCA DEL RIO, VERACRUZ, MÉXICO
Provedor de dados: 37
Autores: MONTOYA-MENDOZA,Jesús; MUÑOZ-NIETO,Gilberto; CHÁZARO-OLVERA,Sergio; MENDOZA-FRANCO,Edgar F; LANGO-REYNOSO,Fabiola; CASTAÑEDA-CHÁVEZ,María del Refugio.
ABSTRACT A helminthological examination was carried out on 14 specimens of Eucinostomus melanopterus (flagfin mojarra) and 19 Eugerres plumieri (striped mojarra), of which a total of 461 helminths were collected. As a result, and 12 taxa were registered (five species, five genus and tow family), as follows: four monogeneans, five digeneans (four adults, one metacercaria), one cestode (larva) and tow nematodes (larvae). The highest prevalence was for Neodiplectanum mexicanum (29 %) infecting E. melanopterus and Aristocleidus hastatus (37 %) infecting E. plumieri. Both hosts shared 50 % of recorded species, and none of the identified helminthes represents a zoonotic risk.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Helminth; Mean intensity; Parasites; Prevalence.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100165

ESTUDIOS MORFO-ANATÓMICOS, CITOGENÉTICOS Y MOLECULARES EN Talinum (TALINACEAE): UNA NUEVA ENTIDAD PARA EL NOROESTE ARGENTINO
Provedor de dados: 37
Autores: ANDRADA,Aldo Rubén; SILENZI-USANDIVARAS,Gabriela Mana; RUIZ,Ana Inés; PÁEZ,Valeria de los Angeles; ALBORNOZ,Patricia Liliana.
RESUMEN Talinum paniculatum es una hierba adventicia ampliamente distribuida en Argentina, que tiene importancia económica como maleza de cultivos resistente a herbicidas. Esta especie se presenta en el campo con dos morfotipos y ellos se distinguen por la forma, tamaño y color de sus flores, frutos y hojas. El objetivo de este trabajo fue determinar las características morfo-anatómicas (de hoja y tallo), citogenéticas y moleculares en dos morfotipos de la provincia de Tucumán (Argentina), y establecer diferencias entre ellos. Se utilizaron técnicas morfo-anatómicas y citogenéticas clásicas y se realizaron análisis moleculares con el marcador ITS2. Los resultados evidencian que las características morfológicas, anatómicas, citogenéticas y moleculares de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomía; Cromosomas; Filogenia; ITS2; Mitosis; Morfotipos.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300310

REVIEW OF Scolia (Hymenoptera: Scoliidae) FROM CENTRAL AMERICA, INCLUDING SEASONAL FLIGHT ACTIVITY IN Scolia guttata
Provedor de dados: 37
Autores: AÑINO,Yostin J.; CAMBRA,Roberto A.; WINDSOR,Donald M.; ZUÑIGA,Ronald; QUINTERO,Diomedes.
ABSTRACT A taxonomic revision of the genus Scolia Fabricius, 1775 (Hymenoptera: Scoliidae) from Central America is presented. Two species of Scolia are present in Central America: S. (Discolia) guttata Burmeister, 1853 and S. (Hesperoscolia) rufiventris Fabricius, 1804, the latter representing the first record for Costa Rica, Panama and Colombia. The male of S. rufiventris is described and illustrated for the first time. Seasonal flight activity for S. guttata from two years of continuous Malaise trapping in Barro Colorado Island, Panama, is described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scoliinae; Seasonal flight activity; Taxonomy; Wasp.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200202

PHENOLOGY, BIOMETRICS AND FRUITS PRODUCTION OF Attalea nucífera (ARECACEAE) IN COLOMBIA
Provedor de dados: 37
Autores: Jiménez-Morera,Ivon; García,Néstor.
ABSTRACT Attalea nucífera is a threatened palm endemic to the Magdalena River basin in Colombia. In the past its seeds were consumed by the inhabitants of the town of Guaduas, Cundinamarca, although currently its use is less frequent. To assess the productive potential of this palm, we studied its phenology, biometric parameters, and fruit productivity in a forest relict in Guaduas. Field work was carried out between April 2016 and March 2017. The reproductive cycle of this species lasted approximately 12 and a half months from bud to fruit ripening. Although bud production occurred throughout the year, it increased during periods of greatest rainfall. Flowering peaks occurred towards the end of the rainy season and fruits ripened towards the period of low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Reproductive cycle; Threatened species; Tropical Dry Forest.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100104

LÍQUENES EPÍFITOS EN Juniperus flaccida Schltdl. (Cupressaceae) - COMPONENTE IMPORTANTE DE LOS BOSQUES TEMPLADOS DE OAXACA, MÉXICO
Provedor de dados: 37
Autores: LEÓN-GONZÁLEZ,Daniela; PÉREZ-PÉREZ,Rosa Emilia.
RESUMEN Se presenta el estudio de la comunidad de líquenes epífitos de Juniperus flaccida, especie endémica de México. Se analiza la influencia del Diámetro Altura Pecho en la riqueza de la comunidad liquénica. Los forofitos seleccionados se clasificaron en siete clases diamétricas. Se comparan las clases diamétricas con la riqueza de líquenes aplicando la prueba de Mann-Whitney U-test. Se utilizó la composición de especies para clasificar a las clases diamétricas con el análisis de conglomerados de doble vía. Se determinó la diversidad alfa, beta y gamma. Se registran 49 especies de hongos liquenizados alrededor de J. flaccida y 65 líquenes epífitos; de estos, 59 fueron nuevos registros asociados a J. flaccida. Se reportan seis nuevos registros para...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comunidad liquénica; DAP; Índices de diversidad.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200235

INACTIVITY AT NIGHT: A CASE STUDY OF THE NOCTURNAL BEHAVIORS OF TWO CAPTIVE Panthern onca (FELIDAE) SPECIMENS
Provedor de dados: 37
Autores: BOCCACINO,Débora; MAIA,Caroline Marques; SANTOS,Eliana Ferraz; SANTORI,Ricardo Tadeu.
ABSTRACT Inactivity is a common daytime behavior expressed by wild cats in zoos. It is not clear whether this inactivity is due to the constraints of the captive environment or is a result of a more natural behavior by these animals. Therefore, this work evaluated the behavior of two Panthera onca captive specimens, including their inactivity, during the evening/night period. The jaguars were filmed individually in different days, starting at 5:30 pm and finishing between 7:00 pm and 1:30 am, including non-feeding and feeding days. Regardless of whether they were fed or not, both jaguars expressed a significant rate of inactivity. In addition, when fed, one of the jaguars increased its movements and active behaviors, although its inactivity remained high,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caged mammals; Felid behavior; Jaguars; Zoo animals.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300368

FIRST RECORD OF THE FAMILY PIESMATIDAE AMYOT AND SERVILLE, 1843 (HEMIPTERA: HETEROPTERA: LYGAEOIDEA) FROM COLOMBIA
Provedor de dados: 37
Autores: SALCEDO MARTÍNEZ,Luis Eduardo; FORERO,Dimitri.
ABSTRACT Piesmatidae Amyot and Serville, are relatively small phytophagous hemipterans (less than 5 mm) with a wide world distribution. We record for the first time the family for Colombia, with the species Parapiesma cinereum (Say). The specimens were collected in Sincelejo - Sucre (Caribbean coast) on plants of the family Amaranthaceae.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caribbean; Insect taxonomy; New geographic record; Phytophagous insect.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100162

VALORACIÓN SOCIAL DE LOS SERVICIOS ECOSISTÉMICOS DE HUMEDALES COSTEROS: ESTADO ACTUAL Y PERSPECTIVAS
Provedor de dados: 37
Autores: ROSA-VELAZQUEZ,Mayra Isabel de la; RUIZ-LUNA,Arturo.
RESUMEN Los Servicios Ecosistémicos (SE) son bienes y servicios que la humanidad obtiene de la naturaleza y a los que se asigna valor ecológico, económico y social, aunque se ha brindado menor atención al estudio de este último. Esta deficiencia es más notable en el caso de los humedales costeros, que proveen importantes SE, escasamente explorados desde la perspectiva social y espacial, pese a su pertinencia en la planificación territorial. Para conocer el estado del arte relativo a la valoración social de SE de humedales costeros y la importancia del análisis espacial en el proceso, se realizó una revisión documental sistemática (2005-2018) que permitió observar una tendencia positiva en el número de publicaciones, en especial en el último trienio. Se...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cartografía social; Ecosistemas costeros; Indicadores sociales; Servicios ambientales.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300403

NATURAL HISTORY OF THE BLACK IGUANA Ctenosaura similis (SQUAMATA: IGUANIDAE) IN ISLA CONTOY, QUINTANA ROO, MEXICO
Provedor de dados: 37
Autores: GARCÍA-ROSALES,Aaron; ARRIAGA-NOGUΕ&amp;#918;,Alicia; RAMÍREZ-BAUTISTA,Aurelio.
ABSTRACT The genera Iguana and Ctenosaura belong to the Iguanidae family, and populations of most species of these genera have decreased due to anthropogenic effects. The natural history of most species of this family is poorly known, including Ctenosaura similis. Therefore, this study documents some ecological aspects of the species, such as its feeding habits, and habitat and microhabitat use in a population of Isla Contoy in Quintana Roo, Mexico. The data showed that even though C. similis is distributed throughout the island, individuals more commonly use human construction (buildings) of Parque Nacional Isla Contoy (PNIC) and mangrove areas. Microhabitats most used by all age classes and sexes were rocks and trees. The diet of the species is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal ecology; Animal population; Feeding; Opportunistic species; Reptilia.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300394

SYSTEMATIC CONSIDERATIONS ON TWO SPECIES OF NECTARIVOROUS BATS (Anoura caudifer AND A. geoffroyi) BASED ON BARCODING SEQUENCES
Provedor de dados: 37
Autores: VARGAS-ARBOLEDA,Andrés; CUADRADO-RÍOS,Sebastian; MANTILLA-MELUK,Hugo.
ABSTRACT As a product of recent revisions of the nectivore bat genus Anoura (Glossophaginae: Anourina), new species have been described, and several taxa have been elevated to the specific level in the so-called Anoura caudifer and A. geoffroyi species complexes in the last four decades. The genus has a wide distribution across regions of high ecological complexity, including geographic features, such as the Andes and the Isthmus of Panamá, previously identified as natural barriers that restrict gene flow in other phyllostomid bat genera. Up to date, no analyses have been conducted to investigate the contribution of biogeographic factors on the genetic divergence of the genus. In this work, we analyze barcoding DNA sequences (cytochrome oxidase subunit I,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecuadorian pacific; Gene flow; Genetic diversity; Tailless bat.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200194

MECANISMOS DE ACCIÓN DE Bacillus spp. (Bacillaceae) CONTRA MICROORGANISMOS FITOPÁTOGENOS DURANTE SU INTERACCIÓN CON PLANTAS
Provedor de dados: 37
Autores: Pedraza,Luz Adriana; López,Camilo Ernesto; Uribe-Velez,Daniel.
RESUMEN Algunos Bacillus spp. promotores de crecimiento vegetal son microorganismos reconocidos como agentes de control biológico que forman una estructura de resistencia denominada endospora, que les permite sobrevivir en ambientes hostiles y estar en casi todos los agroecosistemas. Estos microorganismos han sido reportados como alternativa al uso de agroquímicos. Sus mecanismos de acción se pueden dividir en: producción de compuestos antimicrobianos, como son péptidos de síntesis no ribosomal (NRPs) y policétidos (PKs); producción de hormonas, capacidad de colonización, formación de biopelículas y competencia por espacio y nutrientes; síntesis de enzimas líticas como quitinasas, glucanasas, protesasas y acil homoserin lactonasas (AHSL); producción de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biocontrol; Enfermedad vegetal; Pérdida de cultivos; Seguridad alimentaria.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100112

ANTIFUNGAL ACTIVITY SCREENING OF ANTARCTIC ACTINOBACTERIA AGAINST PHYTOPATHOGENIC FUNGI
Provedor de dados: 37
Autores: SANTOS,Andrés; NÚÑEZ-MONTERO,Kattia; LAMILLA,Claudio; PAVEZ,Mónica; QUEZADA-SOLÍS,Damián; BARRIENTOS,Leticia.
ABSTRACT The extreme weather conditions in the Antarctic have exerted selective pressures favoring differential features in bacteria to survive this untapped environment (i.e., antibiotic molecules). Notably, higher chances of antibiotic discovery from extremophiles have been proposed recently. Although new organic and environmentally friendly sources for helping in the control of plant pathogenic fungi are necessary, the information about anti-phytopathogenic applications of extremophile microorganisms from untapped environments is limited. In this study, we determined the antifungal effect of actinobacterial strains isolated from Antarctic soils and sediments. Co-culture inhibition assays and Minimum Inhibitory Concentration (MIC) determination revealed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonism; Antarctic bacteria; Antifungal; Extremophile; Plant pathogen.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200353

ANTIMICROBIAL PEPTIDES, AN ALTERNATIVE TO COMBAT BACTERIAL RESISTANCE
Provedor de dados: 37
Autores: MEJÍA-ARGUETA,Euridice Ladisu; SANTILLÁN-BENÍTEZ,Jonnathan Guadalupe; ORTIZ-REYNOSO,Mariana.
ABSTRACT Antimicrobial peptides (AMPs) of higher organisms have been studied for the past 25 years, and their importance as components of innate immunity is now well established. The essential simplicity of their chemical structure, along with the lower likelihood of developed resistance compared to conventional antibiotics, has made them attractive candidates for development as therapeutics. The objective of this review article is to describe the current relevance, main mechanisms presented, and the uses of antimicrobial peptides as new therapies in the clinical area. The information used was mainly compiled from scientific articles based on a systematic review of scientific papers with data on human AMPs and their different applications, searching...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial potential; Immune system; Therapeutic agents.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200294

¿QUÉ IMPLICACIONES ECOFISIOLÓGICAS TIENE LA ACTIVIDAD NOCTURNA EN REPTILES "DIURNOS"? UNA REVISIÓN
Provedor de dados: 37
Autores: LARA RESENDIZ,Rafael Alejandro.
RESUMEN En esta revisión se resumen por primera vez los estudios publicados que documentan los eventos de actividad nocturna en reptiles considerados exclusivamente como diurnos. Asimismo, se describen y discuten sus implicaciones ecofisiológicas en ambientes tropicales y de altas latitudes desde la perspectiva de los intervalos óptimos de temperatura de actividad, umbrales de tolerancia, periodo de actividad, catemeralidad, hipotermia voluntaria y su importancia ante el cambio climático global. Finalmente, se identifican los aspectos que aún no han sido estudiados a profundidad en este campo de estudio y se proponen nuevas líneas de investigación.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catemeral; Diurno-nocturno; Ectotermos; Factores ecológicos; Hipotermia voluntaria; Patrones de actividad; Requerimientos térmicos.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200314

LOS ENSAMBLAJES DE MURCIÉLAGOS (MAMMALIA: CHIROPTERA) DE LA SERRANÍA DE LA LINDOSA SON DIVERSOS Y HETEROGÉNEOS
Provedor de dados: 37
Autores: MORALES-MARTÍNEZ,Darwin M.; LÓPEZ-ARÉVALO,Hugo F; MONTENEGRO,Olga L.
RESUMEN La Serranía de La Lindosa es una formación geomorfológica que presenta heterogeneidad en sus coberturas vegetales. Esta zona se encuentra en una situación contradictoria debido a que presenta una elevada biodiversidad, sin embargo, es uno de los actuales focos de deforestación más grandes de Colombia. A pesar de que se espera una alta diversidad de murciélagos en La Lindosa existe poca información publicada sobre este grupo. Este trabajo presenta los resultados de inventarios de murciélagos realizados durante cinco años en la Serranía de la Lindosa. Se compara la diversidad (riqueza, composición y estructura) de los ensamblajes de murciélagos en dos tipos principales de cobertura vegetal, los bosques húmedos y las sabanas casmófitas. Los...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonía; Diversidad verdadera; Ecología; Guayana; Neotrópico.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300322

USE OF BIOCHAR IN AGRICULTURE
Provedor de dados: 37
Autores: SÁNCHEZ-REINOSO,Alefsi David; ÁVILA-PEDRAZA,Edgar Alvaro; RESTREPO-DÍAZ,Hermann.
ABSTRACT The objective of this review is to show how biochar (BC) can be obtained and its effects on the physicochemical properties of soils and physiological behavior of cultivated plants. Biochar is a product rich in carbon that comes from the pyrolysis of biomass, generally of vegetable origin. It is obtained by the decomposition of organic matter exposed to temperatures between 200-900 °C in an atmosphere with low oxygen availability (pyrolysis), which can be slow, intermediate or fast. BC can contain varying levels of elements such as: carbon, nitrogen, oxygen, hydrogen, and sulfur. The primary sources to produce biochar are the forest, agroindustrial, and manure residues. BC quality and physical-chemical characteristics will depend on the type of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbon capture; Mineralization; Plant nutrition; Pyrolysis.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200327

ALTA PRESENCIA DE CADMIO RESULTA EN BAJA DIVERSIDAD DE HONGOS FORMADORES DE MICORRIZAS ARBUSCULARES ASOCIADOS A CACAO (Theobroma cacao L.)
Provedor de dados: 37
Autores: Sandoval-Pineda,Jhon Felipe; Pérez-Moneada,Urley Adrián; Rodriguez,Alia; Torres-Rojas,Esperanza.
RESUMEN Los hongos formadores de micorrizas arbusculares (HFMA) son simbiontes obligados presentes en la rizósfera de plantas de cacao y la diversidad de sus comunidades se modifica, dependiendo de diversos factores como la presencia de cadmio (Cd) en el suelo. La persistencia de HFMA en suelos enriquecidos naturalmente con Cd podría ser un indicador de su capacidad para tolerar esta condición. Esta investigación caracterizó la estructura de la comunidad de HFMA locales presentes en la rizósfera de plantas de cacao en dos suelos con baja (B-Cd: 0,1 mg kg-1) y alta (A-Cd: 20,9 mg kg-1) concentración de Cd. Esporas de HFMA se identificaron mediante claves taxonómicas y su abundancia, riqueza y diversidad se determinó en muestras de suelo originales y después...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dominancia; Comunidades fúngicas; Estrategias de adaptación; Metales pesados; Tolerancia.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300333

REMOVAL OF AMMONIACAL NITROGEN FROM MUNICIPAL LANDFILL LEACHATE WITH FLOATING Typha domingensis (TYPHACEAE)
Provedor de dados: 37
Autores: Tamires PETRY,Camila; Trindade COSTA,Daiane; DROSTE,Annette.
ABSTRACT A promising method for the treatment of effluents is the use of floating macrophytes. Ammoniacal nitrogen is a typical compound present in urban landfill leachates and its removal is important due its toxicity to several organisms. Therefore, the study evaluated Typha domingensis survival and nitrification potential artificially floating in domestic solid waste leachate. Plants were exposed for 35 days to leachate (100, 75 and 50 %) and to rainwater with N:P:K (control). Dissolved oxygen (DO) of the treatments was periodically measured, and ammoniacal nitrogen, nitrite and nitrate were analyzed before and after exposure. At the end of the experiment, plant survival rate was calculated. After two weeks, DO increased twice in the control, three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattail; Macrophyte; Nitrification; Phytoremediation.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100005

BIODEGRADACIÓN DE DOS RESIDUOS DE ESTACIONES DE SERVICIO EN RÍO GALLEGOS - ARGENTINA
Provedor de dados: 37
Autores: Acuña,Adrian J; Cambarieri,Luciana; Pucci,Graciela Ν.
RESUMEN La producción de efluentes contaminados con hidrocarburos en las estaciones de servicio es un inconveniente a controlar y dar un tratamiento adecuado. Este trabajo tuvo como objetivo estudiar la biorremediación de dos residuos de estaciones de servicio de la ciudad de Río Gallegos, Santa Cruz, Argentina por medio de biodegradación. Se realizó la caracterización de la fase oleosa obtenida de efluentes de dos estaciones de servicio y se realizó una biorremediación con microcosmos de los mismos. El seguimiento se realizó con análisis de GC/MS para hidrocarburos y perfiles de ácidos grasos microbianos, como también se realizó un seguimiento de las bacterias degradadoras de hidrocarburos. Los dos residuos mostraron diferente perfil cromatográfico; esto...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Combustibles fósiles; Microbiota; Restauración.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300299

EVALUACIÓN PRELIMINAR DE BIOMARCADORES ENZIMÁTICOS EN CARACOLES DE AGUA DULCE (Pachychilus sp.) DEL HUMEDAL "CIÉNAGA DE TAMASOPO", MÉXICO
Provedor de dados: 37
Autores: CRUZ-SANTIAGO,Omar; ILIZALITURRI-HERNÁNDEZ,César Arturo; MEJÍA-SAAVEDRA,José de Jesús; ESPINOSA-REYES,Guillermo; ALFARO-DE LA TORRE,Ma. Catalina; GONZÁLEZ-MILLE,Donaji Josefina.
RESUMEN Se determinó la actividad de la enzima acetilcolinesterasa (AChE), el rango de conjugación de glutatión s-transferasa (GST) y la presencia de malondialdehído (MDA) como biomarcadores de exposición a plaguicidas, durante dos temporadas (secas y postlluvias), en tejidos de macroinvertebrados acuáticos (caracoles de agua dulce -Pachychilus sp.-) residentes del humedal Ciénaga de Tamasopo (San Luis Potosí, México). También se realizó un monitoreo de los parámetros fisicoquímicos en agua del humedal con una sonda multiparamétrica. La actividad de los biomarcadores se determinó en la fracción S12 (fracción post-mitocondrial) de tejidos de Pachychilus sp. mediante métodos de espectrofotometría UV-Visible en un lector de microplacas. Se encontró una menor...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gasterópodos; Humedales; Marcadores biológicos; Plaguicidas; Salinidad.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200255

DEPREDACION POR INSECTOS DE NIDOS Y NEONATOS PROTEGIDOS DE Podocnemis vogli (SABANAS INUNDABLES DEL CASANARE)
Provedor de dados: 37
Autores: LÓPEZ-MARTÍNEZ,Gustavo; RONDÓN-ZABALA,Jorge; MARTÍNEZ-PARALES,Eduardo; MOYA-ARÉVALO,Helena; RODRÍGUEZ-FANDIÑO,Oscar.
RESUMEN La galápaga sabanera (Podocnemis vogli) es una tortuga de ambientes acuáticos, principalmente lénticos, que centra su época reproductiva en la temporada seca, en la que sus huevos son una importante fuente de alimento en la red trófica y para el hombre, de manera que frecuentemente son afectados por depredadores naturales. Con el propósito de reducir el efecto negativo de la depredación natural sobre las nidadas de P vogli en la Reserva Natural de la Sociedad Civil La Esperanza en Paz de Ariporo, se implementó una estrategia de protección directa con malla metálica y se realizó el seguimiento a las posturas durante tres periodos de anidación entre 2016 y 2018. Como resultado del uso de esta estrategia para proteger las nidadas, se evidenció el...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anidamiento; Conservación; Labidus; Miasis; Phoridae.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300354

River damming affects seedling communities of a floodplain forest in the Central Amazon
Provedor de dados: 39
Autores: Rocha,Maíra da; Feitosa,Yuri Oliveira; Wittmann,Florian; Piedade,Maria Teresa Fernandez; Resende,Angélica Faria de; Assis,Rafael Leandro de.
ABSTRACT The flood pulse of black water rivers in the Amazon basin determines the composition of species along the flood gradient in igapó forests. The Balbina dam, built on the Uatumã River, has altered the flood pulse and caused changes in the floristic composition of adult trees throughout the downstream area. There is a lack of studies on how communities of seedlings in igapó forests respond to changes in the flood pulse. This study investigates the response of seedling communities in the igapó forest downstream the Balbina dam and compares it with two pristine areas. The areas were sampled with transects of 1x25 m within 36 plots (25x25 m) along the flood gradient. Richness and dominance were calculated by simple regression and ordination analyses....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dams; Environmental stress; Flood gradient; Floodplain; Hydrologic cycle; Seedlings; Tropical rivers.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100192

Characterization and biological properties of sulfated polysaccharides of Corallina officinalis and Pterocladia capillacea
Provedor de dados: 39
Autores: Ismail,Mona Mohamed; Amer,Mohamed Saleh.
ABSTRACT Red seaweed possess various sulfated polysaccharides (SPs) that could potentially be exploited as bioactive agents for medical and industrial applications. Crude polysaccharides from the red algae Corallina officinalis (SP1) and Pterocladia capillacea (SP2) were extracted and characterized according to their chemical content and their antioxidant, anti-inflammatory, anticoagulant, antibacterial, antifungal, and antifouling activities. The isolated polysaccharides contained low levels of protein and high levels of carbohydrate and sulfate. The extracted SPs were characterized by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectral data and revealed that SP1 is composed of carrageenan, while SP2 is composed of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anticoagulant; Antifouling; Antimicrobial; Antioxidant; Polysaccharides; Red seaweed.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400623

Karyotype characterization and evolution of chromosome number in Cactaceae with special emphasis on subfamily Cactoideae
Provedor de dados: 39
Autores: Castro,Juliana P.; Moraes,Ana Paula; Chase,Mark W.; Santos,Angeline M. S.; Batista,Fabiane R. C.; Felix,Leonardo P.
ABSTRACT Cactaceae species are karyotypically well-known with x = 11 and chromosome number variation due mainly to polyploidization. However, both assumptions are based on descriptive observations without taking an evolutionary framework of Cactaceae into account. Aiming to confirm these hypotheses in an evolutionary context, we obtained chromosome numbers for 20 species of Cactoideae, performed an extensive review of chromosome number for the family, and analyzed these data using a phylogenetic approach. The karyotypes presented here were characterized by CMA/DAPI banding, and for six species 5S and 45S rDNA sites were located. Our data, along with a survey of the literature, reinforce the long-standing hypothesis of a x = 11 as the base chromosome number...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Base chromosome number; CMA/DAPI; Dysploidy; Heterochromatin; Polyploidy; RDNA.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100135

The taxonomic value of leaf anatomy for species Byrsonima: a difficult genus of Malpighiaceae Juss.
Provedor de dados: 39
Autores: Santos,João Victor da Costa; Oliveira,Maria de Fátima Vasconcelos de; Santos Filho,Francisco Soares; Silva,Leyde Nayane Nunes dos Santos; Araújo,Josiane Silva.
ABSTRACT We studied the leaf anatomy of 15 species of Byrsonima and a single species of Diacidia as an outgroup to test the relevance of leaf anatomical characters to the complicated taxonomy of this genus. We present complete anatomical descriptions for petioles and leaf blades, together with an anatomical matrix, dendrogram and an identification key for the studied taxa. The most informative characters were the presence of stomatal crest, trichome type, epidermis type, contour and conformation of the vascular system in the diaphragm and medium petiole and number of accessory bundles. The aforementioned characters revealed that the anatomy of the petioles in the genus differs from that of petioles in the outgroup taxon with regard to vascular system...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Murici; Plant anatomy; Similarity analysis; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300570

Morphological characterization of pollen grains of Brazilian species of Bombacoideae (Malvaceae s.l.)
Provedor de dados: 39
Autores: Saba,Marileide Dias; Esteves,Gerleni Lopes; Santos,Valdira de Jesus; Santos,Francisco de Assis Ribeiro dos.
ABSTRACT The pollen grains of 15 species belonging to five genera (Ceiba Mill., Eriotheca Schott &amp; Endl., Pachira Aubl., Pseudobombax Dugand, and Rhodognaphalopsis A. Robyns) of the subfamily Bombacoideae (Malvaceae s.l.) were acetolysed, measured, described and photomicrographed under light microscopy and scanning and transmission electron microscopy, in order to characterize the pollen morphology of species of the subfamily occurring in Brazil. The pollen characters studied were size, shape, exine constitution, and apertural type. Pollen grains were medium to large-sized and isopolar with a (sub)circular and (sub)triangular amb with flat, convex or concave sides; oblate to suboblate; 3(-4)-colp(or)ate or 4-5(-6)-colporate, planaperturate,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ceiba; Pachira; Palynology; Pseudobombax; SEM; TEM.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100094

Buchnera nordestina (Orobanchaceae), an overlooked new species from Northeast Brazil, with an updated identification key for Buchnera of Brazil
Provedor de dados: 39
Autores: Scatigna,André Vito; Saraiva,Raysa Valéria Carvalho; Couto,Arthur Filipe Mendes; Souza,Vinicius Castro; Muniz,Francisca Helena.
ABSTRACT A new species of Buchnera (Orobanchaceae) from Northeast Brazil is described and illustrated. Buchnera nordestina was first collected by Dr. Francisco Freire Allemão e Cysneiro ca. 160 years ago and remained undescribed until now. We provide notes on morphology, geographic distribution, and conservation status of the new species. Additionally, we present an updated identification key to all species of Buchnera from Brazil. Buchnera nordestina is characterized by long bracts that are usually two times longer than the calyx tube and by the presence of axillary brachyblasts, both of which are unique features within the genus. The new species occurs in restinga and cerrado vegetation in the Brazilian states of Ceará, Maranhão, and Piauí, and is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Buchnera; Ceará; Cerrado; Hemiparasitic; Maranhão; Orobanchaceae; Piauí; Restinga; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400789

Pollen types of Sapindaceae from Brazilian forest fragments: apertural variation
Provedor de dados: 39
Autores: Bellonzi,Talita Kely; Dutra,Fernanda Vitorete; Souza,Cintia Neves de; Rezende,Andréia Alves; Gasparino,Eduardo Custódio.
ABSTRACT Morphological variations in angiosperm pollen grains may aid in the differentiation of families, genera and species. Sapindaceae pollen morphology holds promise for the recognition of taxa of this cosmopolitan family, which is well distributed in tropical regions and possesses great morphological diversity. This study presents the pollen morphology of 23 native Brazilian species of Sapindaceae from forest fragments in the state of São Paulo, Brazil. The aim was to identify pollen types in order to expand the morphological knowledge of the analyzed species and contribute to the taxonomy and conservation of the family. Pollen grains were acetolysed, measured and photographed using light and scanning electron microscopy. Qualitative data were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Eurypalynous; Palynotaxonomy; Pollen grains; Pollen morphology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200327

Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas
Provedor de dados: 39
Autores: Santos,Ronaldo Oliveira dos; Souza,Alan Pena de; Soares,Rubiene Neto; Rabelo,Fernando Galvão; Silva,Breno Marques da Silva e; Costa Neto,Salustiano Vilar da.
ABSTRACT Areas of cerrado (Brazilian savanna) in the Amazon have been poorly studied from the perspective of fire impacts on environmental sustainability, especially with regard to disturbances to soil and vegetation structure. This study aimed to analyze the influence of edaphic variables and fire together on the composition and structure of tree and shrub vegetation of three cerrado remnants in the Amazon. Eight plots were systematically installed in burned and unburned environments in each remnant. Data were submitted to floristic diversity, similarity, and diametric and altimetric structural assessments. Phytosociological parameters were obtained and submitted to Principal Component Analysis (PCA) and Canonical Correspondence Analysis (CCA). A total of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon savannas; PCA; CCA; Soil properties; Phytosociological analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300505

Testa structure in Erythrina speciosa (Leguminosae): the role of the mucilaginous stratum in the acquisition of physical dormancy
Provedor de dados: 39
Autores: Magalhães,Camila Ribeiro; Oliveira,Denise Maria Trombert.
ABSTRACT Seeds of Erythrina speciosa (Papilionoideae) exhibit physical dormancy, but evidence has suggested that the proportion of impermeable seeds increases with storage. There are no records of structural variation in the testa of E. speciosa that justifies the difference in the percentage of seeds with physical dormancy. Therefore, the present study investigated the difference in permeability between mature seeds of E. speciosa that were freshly collected and those stored for 12 months. Seeds were examined for changes in testa structure that could result in differences in the percentage of seeds in physical dormancy. Thus, imbibition curves and water gaps were determined, and surface micromorphology, anatomy, and histochemistry of the testa were...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Anatomy; Mucilaginous stratum; Physical dormancy; Seed coat; Structure.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300592

Patterns of species diversity in different spatial scales and spatial heterogeneity on beta diversity
Provedor de dados: 39
Autores: Soares,Caio J. R. S.; Sampaio,Mauricio B.; Santos-Filho,Francisco S.; Martins,Fernando R.; Santos,Flavio A. M. dos.
ABSTRACT Patterns of species diversity are essential to understand community structure. We aimed to determine species diversity and patterns of beta diversity in different spatial scales. We sampled three thousand individuals between the coordinates 22°10'S to 22°16'S and 47°47'W to 48°00'W to assess species diversity in three spatial scales (maximum distances of 80 m, 1,400 m, and 12,000 m), using the point-centered-quarter method. We partitioned gamma diversity into alpha and beta components. Beta diversity was partitioned into dissimilarities produced by spatial species turnover and nestedness. The contribution of beta diversity to gamma diversity was greater than that of alpha diversity in all scales, although the patterns of species diversity were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beta diversity; Biogeography; Disturbance; Diversity partition; Local spatial scale; Nestedness; Phytogeography; Spatial species turnover.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100009

Conservation of species-rich subtropical grasslands: traditional management vs. legal conservation requirements in primary and secondary grasslands
Provedor de dados: 39
Autores: Torchelsen,Fábio Piccin; Cordero,Rodrigo León; Overbeck,Gerhard Ernst.
ABSTRACT Land-use change is the main cause of biodiversity losses, and for grasslands includes changes in management. The last 10 years has seen afforestation of traditionally grazed grasslands increase considerably in the understudied Serra do Sudeste region of the Brazilian Pampa, turning the region into a mosaic of tree plantations, natural ecosystems (partly in conservation areas without grazing management) and other land uses. We evaluated grassland plant community structure and composition in conservation areas considering two distinct types of land-use history and compared them to grasslands under traditional management. The study was carried out at 58 sites. Per site, three plots were established to sample the plant composition of the herbaceous...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Conservation; Grazing; Pampa; Primary grassland; Secondary grassland; Species richness; Subtropical grasslands; Vegetation management.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200342

Environmental filters structure plant communities in the Brazilian Chaco
Provedor de dados: 39
Autores: Assunção,Vivian Almeida; Silva,Danilo Muniz da; Dalponti,Guilherme; Sartori,Ângela Lúcia Bagnatori; Casagrande,José Carlos; Mansano,Vidal de Freitas.
ABSTRACT  We characterized taxonomic and functional differences between two vegetation physiognomies in the Brazilian Chaco, namely chaco woodland (CW) and chaco forest (CF), in order to understand which abiotic and biotic mechanisms underlie the establishment of different physiognomies. We characterized the vegetation physiognomies by comparing woody species composition, richness and diversity and functional diversity between CW and CF plots. We also measured soil variables to characterize abiotic factors related to the different physiognomies. Species richness and diversity and soil nutrient values were higher in CF. Leaf succulence and nitrogen content were higher in CW, while height, leaf area, and specific leaf area were higher in CF. The standardized...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Functional traits; Seasonally dry forests; Plant community; Physiognomy; Soil fertility.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400746

Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
Provedor de dados: 39
Autores: Oliveira,Simone Alves de; Ferragut,Carla; Bicudo,Carlos Eduardo de Mattos.
ABSTRACT Phytoplankton structure is influenced by environmental factors, seasonal cycles and the trophic state of the system. The objective of the present study was to identify guilds of phytoplankton species that are representative of seasonality and trophic status. We evaluated phytoplankton biomass and species composition in five tropical reservoirs, with different trophic states and during rainy and dry periods. At most of the sampling sites, total biomass was higher during the rainy season. Moreover, high cyanobacterial biomass was observed in all reservoirs except for one of the mesotrophic reservoirs, which had no significant contribution from the group. Phytoplankton guilds associated with the trophic gradient and seasonality were identified....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyanobacteria; Phytoplankton; Guild; Reservoir; Seasonality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100083

Revisiting hydropotes of Nymphaeaceae: ultrastructural features associated with glandular functions
Provedor de dados: 39
Autores: Tozin,Luiz Ricardo dos Santos; Rodrigues,Tatiane Maria.
ABSTRACT Hydropotes are specialized epidermal structures involved in water and mineral flux into and out of the plant body. We analyzed hydropote morphology of four species of Nymphaeaceae: Nymphaea caerulea, Nymphaea lotus, Nymphaea rubra, and Victoria amazonica. Leaf samples were processed following conventional techniques for plant anatomy and for scanning and transmission electron microscopy. We observed hydropotes comprising an elongated apical sharp-pointed portion with a base composed of two to three short specialized cells. In a later developmental stage the apical sharp-pointed portion was detached and the mature hydropotes comprised an upper lens-shaped cell, a bowl-shaped cell and a large foot cell. Ultrastructural analysis revealed that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nymphaeae; Subcellular features; Structure; Trichomes; Victoria.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100031

Genetic structure of Dicksonia sellowiana Hook. (Dicksoniaceae) reveals clinal distribution along the latitudinal gradient of the Atlantic Forest
Provedor de dados: 39
Autores: Fagundes,Bruna Saviatto; Poersch,Maria Augusta; Santos,Jaqueline dos; Gaglioti,André Luiz; Labiak,Paulo Henrique; Muschner,Valeria Cunha.
ABSTRACT Dicksonia sellowiana is the only species of the genus occurring in Brazil. Its distribution is restricted to humid areas of the Atlantic Forest biome. The distribution pattern of biodiversity in this biome is known to have been influenced by historical and environmental factors, although the pattern for ferns remains unknown. This study is first to describe the genetic structure of D. sellowiana along the latitudinal gradient of the Atlantic Forest biome. We use microsatellite markers to estimate genetic diversity and structure for 267 individuals representing 14 populations of D. sellowiana from the Atlantic Forest. The results (Ho, He, Fst, Fis, distance genetic) support the hypothesis of a pattern of biodiversity discontinuity. We found greater...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Neotropics; Gene flow; Genetic diversity; Microsatellites; Tree fern.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400712

Brazilian tropical dry forest (Caatinga) in the spotlight: an overview of species of Aspergillus, Penicillium and Talaromyces (Eurotiales) and the description of P. vascosobrinhous sp. nov.
Provedor de dados: 39
Autores: Barbosa,Renan do Nascimento; Bezerra,Jadson Diogo Pereira; Santos,Ana Carla da Silva; Melo,Roger Fagner Ribeiro; Houbraken,Jos; Oliveira,Neiva Tinti; Souza-Motta,Cristina Maria de.
ABSTRACT A literature-based checklist of species of Aspergillus, Penicillium, and Talaromyces recorded in the Brazilian tropical dry forest (Caatinga), the largest tropical dry forest region in South America, is provided. A total of 130 species (60 Aspergillus, 57 Penicillium, and 13 Talaromyces) are reported. Soil was the most common substrate, with 122 species records. Various reported species are well known in biotechnological processes. This checklist reflects the limited knowledge of fungal species in tropical dry environments. These data provide a good starting point for biogeographical studies on species of Aspergillus, Penicillium, and Talaromyces in dry environments worldwide. In addition, the new species Penicillium vascosobrinhous is introduced,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascomycetes; Aspergillaceae; Biodiversity; Conservation; Trichocomaceae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200409

Key decision-making criteria for dormancy-breaking and ability to form seed banks of Cerrado native tree species
Provedor de dados: 39
Autores: Colado,Maria Luciana Zequim; Reis,Letícia Koutchin; Guerra,Angélica; Ferreira,Bruno Henrique dos Santos; Fonseca,Diego Rezende; Timóteo,Amanda; Gondim,Evânia Xavier; Guerin,Natalia; Garcia,Letícia Couto.
ABSTRACT Ecological restoration by direct seeding in the Cerrado biome still lacks information about native species germination, the need for dormancy overcoming and seed bank formation. This study aims to verify the effects of dormancy overcoming on germination of four tree species and the ability of 12 tree species to form seed banks for restoration use. Our results showed wide variation of species’ germination rates. Overcoming dormancy enhanced germination for Dimorphandra mollis, Hymenaea stigonocarpa, and Peltophorum dubium and decreased it for Copaifera langsdorffii, but was only cost-effective for H. stigonocarpa. Regarding the ability to form seed banks, only H. stigonocarpa and Cecropia pachystachya germinated and live seedlings of Terminalia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Direct sowing; Ecophysiology; Neotropical savanna; Restoration ecology; Seed photoblastism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400694

Honey sample collection methods influence pollen composition in determining true nectar-foraging bee plants
Provedor de dados: 39
Autores: Layek,Ujjwal; Mondal,Rajib; Karmakar,Prakash.
ABSTRACT This study investigated the suitability of honey sample collection methods for determining the botanical origin of honey through palynological analysis. We used three methods to collect honey samples in three different modes viz. extracted honey using a honey extractor, squeezed honey and pipetted honey (collected by micropipette/dropper from honey cells only) during 2017 to 2019 in West Bengal, India. We considered two native honey bee species (Apis dorsata and Apis florea) and one introduced bee species (Apis mellifera). Pollen composition differed significantly, both quantitatively and qualitatively, among the honey samples of the different methods. The number of pollen grains in extracted honey and squeezed honey was significantly higher than...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Extracted honey; Nectariferous plant; Pipetted honey; Pollen spectrum; Squeezed honey.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300478

Flowering and pollination ecology of Cleistocactus baumannii (Cactaceae) in the Brazilian Chaco: pollinator dependence and floral larceny
Provedor de dados: 39
Autores: Ferreira,Bruno Henrique dos Santos; Souza,Camila Silveira; Fachardo,André Luiz Silva; Gomes,Aline Conceição; Sigrist,Maria Rosângela.
ABSTRACT Cleistocactus baumannii is the only ornithophilous cactus species in the Brazilian Chaco. In addition, this species of Cactaceae invests heavily in flowering in the ecoregion. Such characteristics motivated us to evaluate the temporal availability of flowers in the context of its floral visitors. The reproductive system of C. baumannii, the number of individuals in flowering, flower abundance and the frequency and richness of floral visitors were evaluated and quantified. Nectar robbery was a frequent phenomenon in the studied population; therefore, we compared the pollen load deposited on the stigma of damaged (robbery) and undamaged flowers. In the Brazilian Chaco, C. baumannii is self-incompatible and has a continuous flowering pattern,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arid environments; Chlorostilbon lucidus; Floral damage; Nectar robbery; Ornitophily; Xylocopa splendidula.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100167

Comparative vegetative anatomy of Neotropical Goodyerinae Klotzsch (Orchidaceae Juss.: Orchidoideae Lindl.)
Provedor de dados: 39
Autores: Bona,Cleusa; Engels,Mathias Erich; Pieczak,Fernanda de Siqueira; Smidt,Eric de Camargo.
ABSTRACT The Neotropical genera Aspidogyne and Microchilus (Goodyerinae, Cranichideae, Orchidaceae) comprise ca. 200 rainforests terrestrial species. Although species of Goodyerinae are described with similar anatomy to other taxa of Cranichideae, some anatomical characteristics appear to be specific to the subtribe. Our goal was to characterise the anatomical structure of the vegetative organs of Aspidogyne and Microchilus to identify specific characters of Goodyerinae. Root, stem and leaf samples from eleven species were analysed using light and scanning electron microscopy. The leaves are hypostomatic and glabrous with predominantly anisocytic or tetracytic stomata, thin cuticle, homogeneous mesophyll with chromoplast and raphides, and collateral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aspidogyne; Jewel orchids; Microchilus; Neotropical orchids; Vegetative anatomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300530

Taxonomic study of Marsypianthes Mart. ex Benth. (Hyptidinae, Lamiaceae) in Brazil
Provedor de dados: 39
Autores: Hashimoto,Márcia Yuriko; Ferreira,Heleno Dias.
ABSTRACT Marsypianthes is a Neotropical plant genus distributed from southern Mexico to northeastern Argentina. It is composed of six species - M. arenosa, M. burchellii, M. chamaedrys, M. foliolosa, M. hassleri, M. montana - with all occurring in Brazil except for M. arenosa, which occurs in Mexico. Marsypianthes burchellii, M. foliolosa and M. montana are endemic to Brazil, while M. hassleri also occurs in Argentina and Paraguay and M. chamaedrys is widely distributed from southern Mexico to Argentina. Species of Marsypianthes are found in all the biomes of Brazil - Amazonia, Caatinga, Cerrado, Atlantic Forest, Pampa and Pantanal. Goiás is the Brazilian state with the greatest species richness of Marsypianthes, with four of the five species that occur in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Labiatae; Nepetoideae; Ocimeae; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200277

Novelties in Brazilian Waltheria L. (Byttnerioideae, Malvaceae): two new species and one re-establishment
Provedor de dados: 39
Autores: Coutinho,Thales Silva; Colli-Silva,Matheus; Alves,Marccus.
ABSTRACT This work validates two Waltheria species endemic to campo rupestre with complete descriptions, illustrations, updated geographical distributions and comments on taxonomic affinities. Waltheria biribiriensis and Waltheria terminans are restricted to the Southern Espinhaço Province in eastern South America, occurring on mountain tops where campo rupestre vegetation prevails. Furthermore, Waltheria brachypetala, a species of dry deciduous forests in Brazil that was long considered as conspecific with W. ferruginea due to its shrubby lifeform and similar indumentum, is re-established based on differences of phyllotaxy, blade shape and inflorescence type. The first occurrence records of W. brachypetala in the state of Paraíba are also provided, as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campo rupestre; Endangered species; Hermannieae; Heterostily; Malvales; Re-establishment; Vulnerable species.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300449

Cross-amplification and characterization of microsatellite markers in species of Manihot Mill. (Euphorbiaceae) endemic to the Brazilian Cerrado
Provedor de dados: 39
Autores: Miranda,Kássia Marques Corrêa; Guimarães,Rejane Araújo; Silva,Marcos José da; Oliveira,Patrícia Rasteiro Ordiale; Ribeiro,Thania Gonçalves; Mendes,Thainara Policarpo; Telles,Mariana Pires de Campos; Soares,Thannya Nascimento.
ABSTRACT The genus Manihot Mill. contains about 120 species of which about 104 occur in Brazil. We tested the cross-amplification of ten microsatellite markers developed for Manihot esculenta in 15 species of Manihot endemic to the Brazilian Cerrado. We also evaluated the genetic diversity of Manihot irwinii, M. orbicularis, and M. purpureocostata. Ten pairs of primers were amplified among 14 species of Manihot. The percentage of polymorphic loci per species varied from 70 to 100 %. Nine markers showed amplification and polymorphism when evaluated on polyacrylamide gel. The markers were combined to form three sets for multiplex genotyping for genetic diversity analysis, and showed 51, 75, and 75 alleles in M. irwinii, M. orbicularis, and M....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic diversity; Polymorphism; SSR; Transferability wild cassava.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400772

Taxonomic relevance of leaf anatomy in Banisteriopsis C.B. Rob. (Malpighiaceae)
Provedor de dados: 39
Autores: Araújo,Josiane Silva; Almeida,Rafael Felipe de; Meira,Renata Maria Strozi Alves.
ABSTRACT We describe the leaf anatomy of 42 of the 60 species of the genus Banisteriopsis, one of the largest and most diverse genera of Malpighiaceae in the Cerrado domain. Our aim was to identify anatomical leaf characters useful for the taxonomy and systematics of this morphological diverse genus. Expanded leaves from herbarium specimens were rehydrated and processed according to usual anatomical methods for analysis under light microscopy. All characters were compared using the Unweighted Pair Group Method with Arithmetic Mean algorithm and expressed in dendrograms. The most useful leaf anatomical characters were petiole contour, presence/absence of vascular bundles in the petiole, the position of the vascular bundles in the petiole, shape of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf glands; Malpighiales; Multivariate analysis; Plant anatomy; Stigmaphylloid clade.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100214

Faramea baturitensis (Rubiaceae: Coussareeae), a new species from “Serra de Baturité,” Northeast Brazil
Provedor de dados: 39
Autores: Jardim,Jomar Gomes; Souza,Elnatan Bezerra de; Loiola,Maria Iracema Bezerra.
ABSTRACT As part of an ongoing study of the taxonomy and systematics of Rubiaceae of the state of Ceará, Brazil, a new species, Faramea baturitensis, is here recognized, described, and illustrated. The new species occurs in “Serra de Baturité,” a relic of the Atlantic Forest. Detailed data on the distribution, habitat, phenology, and conservation status of the new species, as well as a key to species of Faramea in Ceará, are provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Endemism; Floristics; Rubioideae; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400778

Root parasitism by Scybalium fungiforme Schott &amp;amp; Endl. is not random among host species in seasonal tropical forest
Provedor de dados: 39
Autores: Campos,Bruna Helena de; Dalbeto,Andra Carolina; Francisco,Bruno dos Santos; Romanelli,João Paulo; Munis,Rafaele Almeida; Engel,Vera Lex; Durigan,Giselda.
ABSTRACT Though they comprise 1 % of plant species on the planet, plant parasites are poorly known. They have been considered a threat to cultivated plants and to the conservation of host species in natural areas. Due to the complex interactions they have with their hosts, understanding their biology is fundamental to the development of conservation strategies for both parasite species and their hosts. We sampled two populations of the root parasite Scybalium fungiforme (Balanophoraceae) in seasonal tropical forest fragments to identify its host species and their functional attributes. Among the hosts, Croton floribundus seems to be preferred (68 % of parasitized plants), while four liana species were complementary hosts (32 %). Host species preference...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Balanophoraceae; Croton floribundus; Holoparasitism; Host specificity; Lianas.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100149

Does an urban environment affect leaf structure of Eugenia uniflora L. (Myrtaceae)?
Provedor de dados: 39
Autores: Bezerra,Laís de Almeida; Callado,Cátia Henriques; Cunha,Maura Da.
ABSTRACT External factors can interfere with the structure and biological activity of plants. Nevertheless, the susceptibility of plants to specific environmental conditions varies, which raises many questions about the behavior of medicinal plants when grown in urban areas. This study aims to detect possible changes induced by exposure of Eugenia uniflora L. to an urban environment, with emphasis on variation in external and internal leaf structure and differences in the production of its main metabolites. We compared leaves of E. uniflora cultivated in forest and urban sites and analyzed them for structural plasticity and characteristics indicative of stress in the urban environment. The leaves of the urban site revealed necrosis and reddish spots,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atmospheric pollution; Brazilian cherry; Environmental change; Histochemistry; Pitangueira; Urban environment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200266

Two new species of the industrially relevant genus Absidia (Mucorales) from soil of the Brazilian Atlantic Forest
Provedor de dados: 39
Autores: Cordeiro,Thalline Rafhaella Leite; Nguyen,Thuong Thuong Thi; Lima,Diogo Xavier; Silva,Suzana Brito Gomes da; Lima,Catarina Ferreira de; Leitão,Joana D’Arc Alves; Gurgel,Luciana Melo Sartori; Lee,Hyang Burm; Santiago,André Luiz Cabral Monteiro de Azevedo.
ABSTRACT During a survey of Mucorales in soil from an upland forest area in Pernambuco, Brazil, two specimens were isolated and characterized based on their morphological, physiological, and molecular data (ITS and LSU rDNA). Phylogenetic analyses of the isolates revealed that the strains URM 8209 and URM 8210 are closely related to species of Absidia. URM 8209 forms conical, subglobose, and strawberry-shaped columellae and the sporangiospores are cylindrical and ellipsoid. URM 8210 produces hemispheric, subglobose, and strawberry-shaped columellae and the sporangiospores are globose, subglobose, ellipsoid, and short cylindrical. Based on evidence obtained through analysis of datasets (LSU and ITS rDNA regions), A. saloaensis sp. nov. (URM 8209) and A....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cunninghamellaceae; Mucoromyceta; RDNA; Soil; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300549

Pollination biology of the endangered columnar cactus Cipocereus crassisepalus: a case of close relationship between plant and pollinator
Provedor de dados: 39
Autores: Martins,Cristiane; Oliveira,Reisla; Aguiar,Ludmilla M.S.; Antonini,Yasmine.
ABSTRACT The family Cactaceae possesses considerable floral diversity and is exclusively zoophilic. Cipocereus crassisepalus is an endangered species of columnar cactus, whose floral characteristics fit the chiropterophily syndrome. This study aimed to assess the correspondence between floral traits and pollinators and whether the pollination system of C. crassisepalus is specialized, as suggested by the hypothesis of geographical dichotomy. Hand pollination treatments demonstrated that C. crassisepalus depends on cross-pollen flow mediated by pollinators to set fruit and seeds. Nocturnal film recordings, diurnal observations, analyses of pollen loads of flower visitors and visitor exclusion experiments provided strong evidence that bats are the sole...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anoura caudifer; Cactaceae; Chiropterophily; Effective pollinator; Self-incompatibility.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100177

Phenolic content and antioxidant activity of parts of Passiflora edulis as a function of plant developmental stage
Provedor de dados: 39
Autores: Guimarães,Sarah F.; Lima,Inorbert M.; Modolo,Luzia V.
ABSTRACT Passiflora edulis Sims var. flavicarpa O. Deg. (Yellow-passion fruit) is the native plant species most used by juice industries in Brazil while its leaf extracts are widely employed in folk medicine. This study evaluated the phenolic content of leaves, roots, fruit shells and pulp of plants of P. edulis in juvenile, flowering and fruiting stages. The extent of scavenging and/or degradation of reactive nitrogen and oxygen species by plant extracts was also investigated. Leaves were the organs that most accumulated phenolics/flavonoids, regardless of plant developmental stage. Leaf extracts efficiently scavenged DPPH by up to 67 % while root and fruit shell extracts effectively captured up to 80 % O2 -. Maximum activity of catalase (51.6 mmol H2O2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant enzymes; DPPH; Flavonoids; Passion fruit; Secondary metabolism; Superoxide anion.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100074

Toward a phylogenetic reclassification of the subfamily Ambavioideae (Annonaceae): establishment of a new subfamily and a new tribe
Provedor de dados: 39
Autores: Chaowasku,Tanawat.
ABSTRACT A molecular phylogeny of the subfamily Ambavioideae (Annonaceae) was reconstructed using up to eight plastid DNA regions (matK, ndhF, and rbcL exons; trnL intron; atpB-rbcL, psbA-trnH, trnL-trnF, and trnS-trnG intergenic spacers). The results indicate that the subfamily is not monophyletic, with the monotypic genus Meiocarpidium resolved as the second diverging lineage of Annonaceae after Anaxagorea (the only genus of Anaxagoreoideae) and as the sister group of a large clade consisting of the rest of Annonaceae. Consequently, a new subfamily, Meiocarpidioideae, is established to accommodate the enigmatic African genus Meiocarpidium. In addition, the subfamily Ambavioideae is redefined to contain two major clades formally recognized as two tribes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annonaceae; Ambavioideae; Meiocarpidium; Molecular phylogeny; Systematics; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300522

Psathyrella atlantica (Agaricales: Basidiomycota), a new species from Brazil
Provedor de dados: 39
Autores: Coimbra,Victor Rafael Matos; Mendes-Alvarenga,Renato Lúcio; Lima-Junior,Nelson Correia de; Gibertoni,Tatiana Baptista; Wartchow,Felipe.
ABSTRACT Psathyrella atlantica is described based on material collected in an Atlantic Forest fragment in the state of Pernambuco, Northeast Brazil. It is characterized by slender, whitish and caespitose basidiomata; pileus with orange, small and floccose-squamulose veil remnants; presence of a persistent but fragile-membranous annulus; basidiospores 5-7 × 3-4 µm; and inconspicuous germ pore. A full description plus illustrations and comments on morphological and phylogenetic data are provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agaricomycetes; Agaricomycetidae; Neotropics; Psathyrellaceae; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200394

Seasonality affects the community of endophytic fungi in coconut (Cocos nucifera) crop leaves
Provedor de dados: 39
Autores: Oliveira,Rafael José Vilela de; Sousa,Natalia Mirelly Ferreira de; Pinto Neto,Walter de Paula; Bezerra,José Luiz; Silva,Gladstone Alves da; Cavalcanti,Maria Auxiliadora de Queiroz.
ABSTRACT The diversity of endophytic fungi in healthy coconut palm leaves (Cocos nucifera) was assessed by analyzing fungal isolates from three coconut cultivars (yellow dwarf, green dwarf, and a hybrid cultivar PB121) used agriculturally in Brazil. The influence of season (rainy or dry) on the endophytic fungal community was also analyzed. Overall, 318 fungal isolates were obtained from 972 coconut leaf fragments. The rDNA ITS region was sequenced from representative species of the isolated endophytic fungi and the most common species identified were Nigrospora oryzae, Pestalotiopsis sp., and Zasmidium musae. The alpha diversity of the endophytic fungi was also calculated. Nonmetric multidimensional scaling (NMDS) ordination and permutational analysis of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arecaceae; Coconut palm; Cocos nucifera; Endophytic fungi; Internal transcribed.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400704

Hondaria, a new genus of Collemataceae (Ascomycota lichenized) from South America
Provedor de dados: 39
Autores: Kitaura,Marcos Junji; Scur,Mayara Camila; Theodoro,Josiane Vogel Cortina; Piovezan-Borges,Ana Cláudia; Lorenz,Aline Pedroso.
ABSTRACT Collema leptosporum was originally included in Collemataceae as part of the Collema fasciculare group, an informal group that also included C. fasciculare, C. papuanorum, and C. uviforme. However, molecular data from C. fasciculare showed that this species belongs to Arctomiaceae, and all species in this informal group were relocated to Arctomia, although no molecular data were generated and analyzed for C. leptosporum, C. papuanorum and C. uviforme. To investigate the phylogenetic relationships of Collema leptosporum, currently Arctomia leptospora, we analyzed three DNA loci and examined morphological and anatomical features of specimens collected near the type locality. Genetic data suggest that this species is not included in Arctomiaceae and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arctomia leptospora; Collema leptosporum; C. fasciculare group; Jelly lichens; South America biodiversity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400615

Colonization-related functional traits of plants in a 50-hectare plot of secondary tropical forest
Provedor de dados: 39
Autores: Candido,Helder Marcos Nunes; Miazaki,Ângela; Pontara,Vanessa; Bueno,Marcelo Leandro; Solar,Ricardo; Gastauer,Markus; Meira-Neto,João Augusto Alves.
ABSTRACT The growth-survival trade-off hypothesis states that functional traits of stem, wood, leaves and fruits govern acquisitive and conservative strategies of plant species that grow/survive differently in forests. We aimed to determine whether heterogeneity during the colonization of a secondary Atlantic Forest fragment causes differences in colonization-related traits and determines taxonomic composition of subplots. A total of 5,078 subplots were censused with leaf and fruit traits and height measurements being determined for each tree of each species, and with averaged-abundance-weighted values calculated for each subplot. A dendrogram was generated from the taxonomic composition of subplots using Sorensen similarity and UPGMA clustering. A total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colonization; Fruit size; LEEP 50-ha plot; Leaf functional traits; Plant height; Wood density; Plant functional traits; Phytosociology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100001

Can plant hybridization and polyploidy lead to pollinator shift?
Provedor de dados: 39
Autores: Rezende,Luiz; Suzigan,João; Amorim,Felipe W.; Moraes,Ana Paula.
ABSTRACT Events of both hybridization and polyploidy are capable of completely restructuring the genome, modifying phenotypic traits and affecting ecological interactions. For plants, these changes may affect floral traits that are important for interactions with pollinators, which could lead to shifts in pollinator behavior and taxa between hybrids/polyploids and parental/diploid species. Such pollinator shifts have great ecological and evolutionary relevance since they play a key role in the diversification of angiosperms. There is a growing number of studies that explicitly address the relationship between plant hybridization/polyploidy and pollinator shifts. However, questions remain about how often hybridization and polyploidy lead to pollinator...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allopolyploidy; Autopolyploidy; Floral traits; Hybrid species; Homoploid; Pollination.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200229

Germination responses of Lycium humile, an extreme halophytic Solanaceae: understanding its distribution in saline mudflats of the southern Puna
Provedor de dados: 39
Autores: Palchetti,María Virginia; Llanes,Analía; Reginato,Mariana; Barboza,Gloria; Luna,Virginia; Cantero,Juan José.
ABSTRACT Although knowledge about halophytic Solanaceae is scarce, it is known that several species within genus Lycium tolerate salinity. Lycium humile grows in highly saline soils in mudflats near saline Andean lakes. This study evaluated the germination responses of L. humile under different scarification methods, photoperiods, temperatures and saline conditions and, simultaneously, tested seedling survival under different iso-osmotic conditions. Dormancy and germination were found to be regulated by interactions with different factors, with the highest germination percentages being obtained by immersion in sulfuric acid, with a temperature of 25 °C and a temperature regime of 5/25 °C, under which seeds were neutrally photoblastic. As osmotic potential...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Andes; Halophyte; Lycium humile; Puna; Salinity; Salt tolerance; Solanaceae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300540

The dark side of the rain: self-pollination setbacks due to water exposure in Pavonia varians Moric (Malvaceae), a species with rain-dependent flowering
Provedor de dados: 39
Autores: Domingos-Melo,Arthur; Bezerra,Sinara Mayara da Silva; Nadia,Tarcila de Lima; Machado,Isabel Cristina.
ABSTRACT Plants that occur in arid or semi-arid environments may restrict their flowering to the rainy season to ensure water availability for reproductive functions. However, the exposure of flowers to rainfall can compromise their functionality, such as complex self-pollination mechanisms. We experimentally tested how rainfall exposure affects the sequence of anthesis and reproductive success of Pavonia varians. This species is endemic to the Caatinga, and it has a rainfall-dependent flowering and a specialized mechanism of delayed self-pollination by style curvature. Our results demonstrate that wet flowers have difficulty in distending their petals, and although they maintain the sequence of anthesis, style curvature and corolla closure are delayed....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Autogamy; Caatinga; Delayed self-pollination; Floral anthesis; Style curvature.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200437

Patterns of plant use in religious offerings in Bali (Indonesia)
Provedor de dados: 39
Autores: Sujarwo,Wawan; Caneva,Giulia; Zuccarello,Vincenzo.
ABSTRACT Balinese Hinduism has incorporated local animistic traditions and offerings, which play a key role in the religious ceremonies called “five holy ceremonies” or Panca yadnya. Since plants constitute fundamental elements of these offerings, we aimed to contribute to their knowledge. We analyzed plants used during ceremonies by interviewing key informants in four ancient villages of Bali (Bali aga). We identified exclusive and common species associated with different kinds of ceremonies and assessed whether there was any pattern in the selection of plants for the various offerings. We recorded 125 species (112 genera, 49 families), most of which belong to the wild ethnoflora of Bali, but also 36 species that are not native to the Malesian region. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bali aga; Ceremonies and rituals; Floristic similarity; Orthopraxy; Plant pool; Traditional ecological knowledge.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100040

Seed germination and dormancy break in Eragrostis polytricha, a native Brazilian grass species with potential for recovery of degraded lands
Provedor de dados: 39
Autores: Saraiva,Diogo F.; Paula,Cláudio C. de; Moraes,Paulo José de; Vinícius-Silva,Ronaldo; Silva,Mariana M.; Dias,Denise C.F.S.; Botelho,Soraya A.
ABSTRACT Ferruginous Rocky Outcrops have high levels of species richness and endemism, but have been threatened by several anthropic actions, especially mining. Eragrostis polytricha, a common grass species in the vegetation of these outcrops, has shown promising features for use in the recovery of mining areas. However, in order to fully understand the species’ potential for such use, its requirements for germination, seed dormancy break and seedling development must be determined. Thus, we aimed to: (1) assess the temperature conditions needed for seeds of E. polytricha to germinate; (2) evaluate the effects of KNO₃ in breaking seed dormancy; and (3) analyze the germination efficiency of seeds that are still in spikelets. The experiment included seven...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternating temperatures; Hairy sheath lovegrass; KNO₃; Mining areas; Native species.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300497

Pollen morphology of some species of Spermacoceae s.s. (Rubiaceae) of the Atlantic Forest, Rio de Janeiro, Brazil
Provedor de dados: 39
Autores: Gonçalves-Esteves,Vania; Vieira,Gabrielle Reboredo Menezes; Carvalho,Renata Jacomo Paixão de; Crespo,Sonia Regina de Melo; Mendonça,Claudia Barbieri Ferreira.
ABSTRACT This work aimed to morphologically characterize 22 species of Spermacoceae s.s found in the Atlantic Forest in the state of Rio de Janeiro with the purpose of improving palynological knowledge of the studied species. The studied species included six species of Borreria and Denscantia cymosa, Emmeorhiza umbellata, Hexasepalum apiculatum, H. radula, H. teres, Manettia fimbriata, Mitracarpus eichleri, M. frigidus, M. hirtus, M. lhotzkyanus, M. megapotamicus, Oldenlandia salzmannii, Pentodon pentandrus, Richardia brasiliensis, Richardia scabra and Spermacoce rubescens. Acetolysed pollen grains were analyzed using light (LM) and scanning electron miscroscopy (SEM). The pollen grains varied in size (polar diameter) from medium to large, with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gentianales; Multivariate analysis; Palynology; Rubioideae; Systematics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200243

Environmental factors affect population structure of tree ferns in the Brazilian subtropical Atlantic Forest
Provedor de dados: 39
Autores: Schwartz,Carlos Eduardo; Gasper,André Luís de.
ABSTRACT Tree ferns are important elements of tropical forests, mainly because they are common and provide microhabitats for epiphytic plants. Due to their ecological importance, the aim of this study was to evaluate population structure, distribution, and influence of environmental variables on tree ferns in the state of Santa Catarina, southern Brazil. All tree ferns with a diameter at breast height ≥ 10 cm on 418 sampling units (SUs) systematically distributed throughout the study area were measured (total sampled area of ​​153.4 ha). Population structure was evaluated through classical phytosociological parameters and the relationships among dominance and environmental variables were evaluated through multiple linear regression models. Dicksonia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyatheaceae; Dicksoniaceae; Environmental variables; Population structure; Regression analysis; Tree ferns.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100204

Phylogenetic placement of Tritirachium strains from the URM culture collection originally founded by Augusto Chaves Batista (1916-1967) in Brazil, and the description of T. batistae sp. nov.
Provedor de dados: 39
Autores: Bezerra,Jadson Diogo Pereira; Felipe,Maria Tamara de Caldas; Paiva,Laura Mesquita; Magalhães,Oliane Maria Correia; Silva-Nogueira,Eliane Barbosa da; Silva,Gladstone Alves da; Souza-Motta,Cristina Maria de.
ABSTRACT Twenty-seven Tritirachium strains were present in the URM culture collection originally founded in Brazil by Augusto Chaves Batista. Fifteen freshly-prepared cultures were obtained from these original strains preserved under mineral oil. DNA was extracted for analysing phylogenetic relationships using the sequence information available from Tritirachium type materials and reference strains. Phylogenetic analysis using the internal transcribed spacer (ITS) ribosomal DNA sequences revealed that eight of these strains belong to the same clade as of T. oryzae and that the four other strains belong to the same clade as of T. candoliense. The strain URM 38, which was previously identified as “T. brumptii”, appeared to exist as a single lineage, related...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Basidiomycota; Brazilian fungi; Fungal preservation; Phylogeny; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200290

Erratum
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400807

Xylem growth rings and leaf phenological patterns in tree species of a subtropical seasonal forest
Provedor de dados: 39
Autores: Bauer,Danielle; Schmitt,Jairo L.; Oliveira,Juliano M.
ABSTRACT Growth rings have been reported for several tropical species under seasonal precipitation regimes and have often been related to leaf phenology. We investigated growth ring distinctiveness, wood markers, and leaf shedding and flushing patterns of 16 tree species from a subtropical seasonal deciduous forest under abundant and well-distributed rainfall regime in southern Brazil. Distinct growth rings were found in 13 species, 10 of which presented clear anatomical boundaries. Seven species were deciduous, five semideciduous and four perennial. Leaf shedding peaked during winter and spring months for the deciduous species, while it peaked during spring and summer months for the perennial and semideciduous species. Leaf flushing peaked in spring and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dendrochronology; Phenology; Seasonal deciduous forest; Subtropical forest; Tree rings; Wood anatomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400680

Communities of Mucorales (phylum Mucoromycota) in different ecosystems of the Atlantic Forest
Provedor de dados: 39
Autores: Lima,Diogo Xavier; Souza-Motta,Cristina Maria; Lima,Catarina Letícia Ferreira de; Souza,Carlos Alberto Fragoso de; Ribeiro,Jonathan Ramos; Santiago,André Luiz Cabral Monteiro de Azevedo.
ABSTRACT As primary decomposers of organic matter, mucoralean fungi have an important ecological role in edaphic systems in the Atlantic Forest. However, there is a knowledge gap regarding how communities of Mucorales are structured in soils of Atlantic Forest areas, and whether these communities are influenced by edaphic attributes in this domain. Thus, the current study aimed to understand the influence of edaphic attributes linked to species richness, abundance and composition of Mucorales in dense ombrophilous forest, ‘tabuleiro’ forest, sandbank and mangrove ecosystems located in Pernambuco, Brazil. Altogether, twenty-three taxa, including seven new records, were reported from soil samples from the ecosystems. Species composition was similar among the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Basal fungal order; Diversity; Ecology; Mucorales; Mucoromycota; Mucoromycotina; Soil; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400796

Marsypianthes tubulosa, a new species of Hyptidinae (Lamiaceae) from the Brazilian Cerrado
Provedor de dados: 39
Autores: Soares,Arthur de Souza; Harley,Raymond Mervyn; Pastore,José Floriano Barêa; Jardim,Jomar Gomes.
ABSTRACT After a brief historical account of the genus, a new species, Marsypianthes tubulosa, from the Brazilian state of Tocantins is described and illustrated. The new species is similar to M. chamaedrys (Vahl) Kuntze, the most polymorphic species of the genus. It is distinguished from the other species of the genus by its habit and characters of the cyme, calyx and corolla. Comments on the taxonomy and distribution of the new species are provided, as well as a conservation assessment, distribution map, photographs and a black and white illustration.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian flora; Labiatae; Marsypianthes chamaedrys; Ocimeae; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400783

Diversity of endophytic fungi in the leaflets and branches of Poincianella pyramidalis, an endemic species of Brazilian tropical dry forest
Provedor de dados: 39
Autores: Oliveira,Thays G. L.; Bezerra,Jadson D. P.; Silva,Iolanda R. da; Souza-Motta,Cristina M.; Magalhães,Oliane M. C.
ABSTRACT Plants harbour diverse communities of fungal species in their internal compartments. Endophytic fungi help their hosts to establish, survive, and adapt to different environments. Here, we examined the diversity of endophytic fungi in the leaflets and branches of Poincianella pyramidalis, a plant species endemic to the Brazilian tropical dry forest (Caatinga). A total of 360 fragments of leaflets and branches were analysed and 189 endophytic fungi were isolated and distributed among 21 ascomycetous genera based on their ITS and LSU rDNA sequences. Diaporthe was the most frequently identified genus, followed by Didymella and Rhytidhysteron. The colonisation rate of plant fragments was higher in the branches (74 %) than in leaflets (14 %). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascomycetous fungi; Caatinga; Diaporthe; Dothideomycetes; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400755

180 years of Botanical Investigations in Antarctica and the Role of Brazil
Provedor de dados: 39
Autores: Câmara,Paulo E.A.S.; Carvalho-Silva,Micheline.
ABSTRACT  Botany is one of the oldest sciences done above the 60oS parallel with more than 180 years passing since the first professional botanist collected plants in Antarctica. Far from being a barren place, plants constitute an important part of polar ecosystems. Brazil is one of only 29 countries in the world with consultative status and to currently develop botanical studies in Antarctica. We discuss the importance of polar science to Brazil and the role that Brazil has in the international austral-polar scientific community, as well as the importance of its newly inaugurated scientific station.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antarctic Treaty; Botany; Brazil; J.D. Hooker; PROANTAR.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200430

What factors guide healthcare strategies over time? A diachronic study focused on the role of biomedicine and the perception of diseases in the dynamics of a local medical system
Provedor de dados: 39
Autores: Santoro,Flávia Rosa; Albuquerque,Ulysses Paulino.
ABSTRACT Among the recently discussed evolutionary issues on medical systems, one of the most controversial issues is the replacement of local medical systems with the biomedical system. Our study investigates the hybridization of two medical systems and the role that the perception of incidence and severity of diseases has in memorization and transmission of information about their treatments. We collected data from a rural population in Brazil during two different periods separated by eight years and compared the periods for changes according to the knowledge on treatments with drugs in the biomedical system and according to the incidence and severity of the diseases. We found 147 medicinal plants belonging to 58 botanical families. Our results show that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cultural evolution; Cultural selection; Evolutionary ethnobiology; Intermedicality; Local medical systems.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400720

Phenology and dispersal syndromes of woody species in deciduous forest fragments of the Pantanal in Mato Grosso do Sul State, Brazil
Provedor de dados: 39
Autores: Lima,Michele Soares de; Damasceno-Junior,Geraldo Alves.
ABSTRACT We analyzed the phenological responses of shrub-tree species of lowland deciduous (LDF) and submontane deciduous (SFD) forests in the Pantanal, and assessed their relationships with climatic factors at the community level and with strategies for seed dispersal. Vegetative and reproductive phenophases of 50 tree-shrub species were monitored monthly (12 months), and their relationship with climatic variables was tested using multiple linear regression. Time of leaf budding differed between areas for autochoric species and between autochoric and anemochoric species at LDF. Leaf fall in communities and functional groups was seasonal and highly synchronous during the dry season (95 % of species). Leaf budding peaked at the end of the dry season with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Deciduous forest; Functional groups; Pantanal; Reproductive phenology; Seed dispersion; Vegetative phenology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200312

What we really know about the composition and function of microalgae cell coverings? - an overview
Provedor de dados: 39
Autores: Gonçalves,Cíntia de Almeida; Figueredo,Cleber Cunha.
ABSTRACT Cell coverings can be observed in all major groups of organisms, which include animals, plants, fungi, protists and prokaryotes. They play a key role in assuring cell survival or adaptation to certain environmental conditions. Since the term algae refers to a polyphyletic and very artificial group, the cell coverings of these organisms are very diverse in molecular composition and with different arrangements. Differences have taxonomic value since they allow microalgae phyla or even minor taxonomic groups, such as classes, orders or families, to be distinguished. Understanding the structure of cell coverings is also fundamental for the use of microalgae to obtain products of commercial value. Despite its importance, the composition and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algal coverings variety; Biological interactions; Cell surface; Molecular structures; Taxonomical value.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400599

Effects of ocean warming, eutrophication and salinity variations on the growth of habitat-forming macroalgae in estuarine environments
Provedor de dados: 39
Autores: Borburema,Henrique Douglas dos Santos; Lima,Ruth Pessoa de; Miranda,George Emmanuel Cavalcanti de.
ABSTRACT Global change and coastal eutrophication are affecting macroalgae worldwide. We analyzed the effects of increased water temperature (25, 28 and 32 °C) and eutrophication on the growth of Bostrychia binderi and Bostrychia montagnei in a range of salinities (18, 24, 30, 36 and 42 PSU) through three independent multifactorial experiments. Both species had higher growth at 25 °C than at 28 and 32 °C (warming scenario projected by IPCC), suggesting a negative effect of ocean warming. The species showed a broad tolerance to the range of salinities tested, with higher growth at 36 and 42 PSU, as a local adaptation strategy. Oligotrophic seawater significantly affected the growth of both species because the lowest growth was found in this condition,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bostrychia; Bostrychietum; Climate change; Ecophysiology; Estuarine macroalgae; Eutrophication; Global change; Growth; Salinity variation; Sea level rise.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400662

Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients
Provedor de dados: 39
Autores: Einzmann,Helena J. R.; Schickenberg,Nina; Zotz,Gerhard.
ABSTRACT Root morphology is expected to respond to environmental conditions. Two earlier studies reported predictable changes in the structure of the velamen radicum (common in monocotyledons) along rainfall gradients, which was expected from its assumed role in plant-water-relations. The present study expanded on this idea by analysing nine root traits that can be linked to root function, including velamen structure, along two moisture gradients of different spatial scales: 1) along the vertical gradient of a lowland forest in central Panama and 2) along a strong regional rainfall gradient in western Panama. All studied traits (e.g. velamen width, number of xylem poles, lignification of the exodermis) of the 45 orchid species showed substantial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epiphytic orchids; Exodermis; Interspecific variation; Intraspecific variation; Lignification; Plant morphology; Velamen radicum; Water relations.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100066

Brazilian herbaria: an overview
Provedor de dados: 39
Autores: Gasper,André Luís de; Stehmann,João Renato; Roque,Nádia; Bigio,Narcísio C.; Sartori,Ângela Lúcia Bagnatori; Grittz,Guilherme Salgado.
ABSTRACT Herbaria represent irreplaceable repositories of biodiversity and are used to answer questions about conservation, ecology, systematics, and other sciences. In this sense, we characterize the infrastructure, human resources, and idiosyncrasies of Brazilian herbaria. To achieve this goal, curators were sent a structured and standardized questionnaire to gather information about herbaria. The Brazilian Herbaria Network listed 216 active herbaria in the year 2018, of which 139 answered the questionnaire. These herbaria hold 6,741,469 samples in their collections and more than 39,000 type samples. Most herbaria are in federal universities (40.28 %). Only 24 % of the curators considered that their herbarium is valued by their institutions and 52 %...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Biological collections; Natural history; Public policies.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200352

Distant populations of a Xanthosoma (Araceae) species have different floral scents but the same cyclocephaline beetle pollinators
Provedor de dados: 39
Autores: Gottsberger,Gerhard; Silberbauer-Gottsberger,Ilse; Dötterl,Stefan.
ABSTRACT We report on the reproductive biology, pollinators, and thermogenesis of the widely distributed Araceae species, Xanthosoma striatipes. We analyzed the floral scent in one population and compared it to a previous study. Xanthosoma striatipes was studied at three sites in Brazil, São Paulo, Minas Gerais and Maranhão. The results showed constancy of the reproductive biology and main pollinator species across sites. The pollinators at all three sites sites were two species of cyclocephaline scarabs, Cyclocephala atricapilla and C. ohausiana. The scent composition of the strongly scented inflorescences of plants of a site in São Paulo differed from plants recently studied in Central Brazil. Of the 39 and 23 compounds detected, in the present and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beetle behavior; Cyclocephaline scarabs; Floral scent; GCMS-analyses; Thermogenesis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300580

Drivers of floristic variation in biogeographic transitions: insights from the ecotone between the largest biogeographic domains of South America
Provedor de dados: 39
Autores: Souza,Loana Araújo Silva; Eisenlohr,Pedro V.
ABSTRACT Ecological transitions usually represent vulnerable ecosystems and high biodiversity. Investigating their drivers is important from both biogeographic and conservationist perspectives. One of these transitions is situated between the two largest biogeographic domains of South America - the Amazon and the Cerrado. We evaluated variation in tree floristic composition throughout this transition and assessed which factors explain this variation. We used 17,240 records of occurrences of 2,530 tree species from the NeotropTree database. We investigated variation in floristic composition using UPGMA cluster analysis with bootstrap resampling and NMDS ordination, and modeled the distribution of species in relation to environmental and spatial predictors...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeographical patterns; Ecological transitions; Ecotone; Floristic variation; Tb-RDA; Variance partitioning; Vegetation types.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100155

First cytomolecular characterization of three Neotropical woody bamboos (Bambusoideae, Poaceae) suggests ancient diploidized karyotypes
Provedor de dados: 39
Autores: Zappelini,Julia; Souza,Luiz Gustavo; Guerra,Miguel Pedro; Pescador,Rosete.
ABSTRACT Although karyotype features are useful data for evolutionary studies, cytogenetic data in Bambusoideae are mainly based only on chromosome counts. The first comparative cytogenetic analysis of three Neotropical woody bamboo species - Guadua chacoensis, G. angustifolia and Chusquea tenella - was undertaken based on new and reviewed chromosome counts, CMA/DAPI double staining, fluorescent in situ hybridization (FISH) with 35S and 5S rDNA probes, and genome size estimation. The two species of Guadua were found to have 2n = 46 chromosomes, while the first record for C. tenella was 2n = 44. Only one pair of CMA+/DAPI- was detected on the terminal region of metacentric chromosomes in all three species. Likewise, one pair of 5S and 35S rDNA sites was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chusquea; Cytogenetics; Diploidization; Evolution; Guadua; Polyploidy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400673

Sporepolinic morphology of fluvial terrace sediments in the Western Amazon
Provedor de dados: 39
Autores: Silva,Mayra Nina Araujo; Absy,Maria Lúcia; Latrubesse,Edgardo M.; Albuquerque,Patrícia Maia Correia de.
ABSTRACT Morphological descriptions were made for pollen grains and spores extracted from samples from three sedimentary sections - Chandless 1, Purus 10 and Purus 30 - from fluvial terraces on the Chandless and Purus rivers, Acre State, Brazil. Level CH1-12 at Chandless 1 was C14-dated to 4861 - 5050 cal yr BP, P10-3 of Purus 10 was dated through the OSL method at 8200 +/- 65 yr BP, while P30-6 at Purus 30 was C14 dated to 7845 - 7998 cal yr BP. For pollen analysis, 2 cm3 of each sample was removed, treated with potassium hydroxide (KOH) and acetolysed, followed by palymorph separation with bromoform/alcohol density 2.0 solution. A total of 49 palynomorphs were morphologically described (39 pollen types and 10 Pteridophyte spores). The most frequent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acre; Amazon; Chandless; Palynomorphs; Purus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100017

Unveiling the germination requirements for Cereus hildmannianus (Cactaceae), a potential new crop from southern and southeastern Brazil
Provedor de dados: 39
Autores: Becker,Rafael; Ri,Leandro Dal; Farias-Singer,Rosana; Singer,Rodrigo Bustos.
ABSTRACT Cereus hildmannianus K. Schum is a columnar cactus native to South and Southeast Brazil. The cultivation of this species seems justifiable for several reasons: its fruits are spineless and edible; it is not threatened with extinction; it naturally occurs in Pampa and Atlantic Forest under non-xeric conditions that may be unsuitable for the cultivation of other tropical cacti; and the plants are pollinator-dependent and so should benefit from native pollinators. This study aimed to test seed germination of C. hildmannianus with samples collected at three different localities in southern Brazil, as a necessary step preceding any attempts of management and domestication. Seeds were exposed to temperatures of 20° C, 25° C, 30° C and room temperature....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cacti; Cereus hildmannianus; Germinability; Germination; Synchronicity; Tuna.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400765

Species representativeness of Fabaceae in restrictive soils explains the difference in structure of two types of Chaco vegetation
Provedor de dados: 39
Autores: Baptista,Mozart Sávio Pires; Assunção,Vivian Almeida; Bueno,Marcelo Leandro; Casagrande,José Carlos; Sartori,Ângela Lúcia Bagnatori.
ABSTRACT The distributions of species of Fabaceae are strongly related to the soil. Their presence can alter restrictive conditions and favour the establishment of other species. However, it is still not known how the relationship between species of Fabaceae and edaphic factors interact in structuring woody Chaco vegetation. In this context, we aimed to test the hypothesis that restrictive edaphic conditions can explain the difference in floristic patterns of two types of vegetation through their species representativeness of Fabaceae. We analysed floristic consistency between wooded and forested Chaco to address how spatial and environment components might explain differences between them along with the effects of the interaction between Fabaceae and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chaco vegetation; Ecological success; Environmental filtering; Edaphic gradient Leguminosae; Environmental seasonality; Structural patterns.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300559

Early development of epiphytic roots: perspectives based on the composition of the velamen cell wall
Provedor de dados: 39
Autores: Lana,Luísa Gouveia; Silva,Ana Flávia de Melo; Buss,Aldineia; Oliveira,Denis Coelho de; Moreira,Ana Silvia Franco Pinheiro.
ABSTRACT The velamen, a root structure of some epiphytic species for water uptake, usually is stratified epidermis consisting of dead cells. In general, its cell walls exhibit variation during development, including in thickness and amount and type of impregnated substances. These changes result in diverse physical and chemical properties that can serve in water and nutrient uptake, as well as in mechanical support and protection. On this basis, the main objective of the current study was to describe the composition of the cell walls of the velamen during the development of the roots of four species of Cattleya. Anatomical, histochemical and immunocytochemical analyses were performed with samples (n=3 individuals per species) of meristematic, developing,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattleya; Orchidaceae; Pectins; Root meristem; Velamen development.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400633

More is not always better: responses of the endemic plant Vellozia nanuzae to additional nutrients
Provedor de dados: 39
Autores: Cunha-Blum,Jessica; Oki,Yumi; Solar,Ricardo; Fernandes,Geraldo Wilson.
ABSTRACT Soil nutrients are one of the main drivers of plant species composition and distribution, mainly due to the role they play in plant survival and reproductive success. However, the nutritional requirements of plants inhabiting their native ecosystems are still poorly known. This is the case for most species of campo rupestre vegetation, which are found on infertile soils of quartzitic and ferruginous origin. The present study evaluated the effects of macronutrients and substrates on survival and growth of the micro-endemic Vellozia nanuzae (Velloziaceae). Plant mortality was about 95 % higher in soil enriched with macronutrients and almost 100 % in soils with added manure in the first 30 days. Individual plants from treatments with added nutrients...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campo rupestre; Plant nutrition; Rupestrian grasslands; Soil nutrients; Velloziaceae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300487

Emerging hotspots of tree richness in Brazil
Provedor de dados: 39
Autores: Castuera-Oliveira,Luciene; Oliveira-Filho,Ary Teixeira de; Eisenlohr,Pedro V.
ABSTRACT We present a summary of floristic variation and distribution of richness of tree and tree-like taxa (i.e., freestanding plants that reach at least 3m in height) in Brazil. We investigated composition patterns throughout phytogeographic domains and vegetation types based on 698,490 occurrence records obtained from the NeoTropTree (NTT) database, and used rarefaction and extrapolation methods to compare species richness. We delimited areas of high taxa richness in Brazil by applying the Geographic Interpolation of Endemism method. There are 9,108 tree species catalogued in NTT for Brazil, but our extrapolations indicate that the total could reach 9,525 species. Predominantly forested domains showed the greatest richness of taxa with the Amazon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floristic composition; Geographic Interpolation of Endemism; NeoTropTree; Phytogeographic domains; Species distribution.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100117

Palynotaxonomy of Brazilian species of Passifloraceae sensu stricto
Provedor de dados: 39
Autores: Araújo,Rita de Cássia Matos dos Santos; Nunes,Teonildes Sacramento; Saba,Marileide Dias; Andrade,Brunelle Ramos; Nascimento,Anacleide Pereira do; Santos,Francisco de Assis Ribeiro dos.
ABSTRACT This study aims to expand knowledge of the pollen morphology of Passifloraceae and contribute to the taxonomic delimitation of the group by morphologically characterizing pollen grains of species that occur in the Brazilian state of Bahia. Thirty-six species occur in the state, one of the genus Mitostemma (M. glaziovii) and 35 of the genus Passiflora. Pollen samples were acetolysed, measured, and described using light and scanning electron microscopy. The results group the studied species into four pollen types based mainly on aperture type and number, opercular variation, and the presence/absence of ornamentation elements inside the lumina of the reticulum: Pollen type I - species belonging to the subgenera Astrophea and Deidamioides; pollen type...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Mitostemma; Passiflora; Palynology; Pollen morphology; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100054

Seed traits of species from South Brazilian grasslands with contrasting distribution
Provedor de dados: 39
Autores: Martins,Alexandre Cristante; Marchioretto,Rafaella Migliavacca; Vieira,Ariane Tonetto; Stiehl-Alves,Eudes Maria; Santos,Eliane Kaltchuk dos; Souza-Chies,Tatiana Teixeira de.
ABSTRACT South Brazilian grasslands are among the most species-rich grasslands worldwide yet they have been suffering ongoing degradation due to land-use. Little is known about the reproductive ecology of the native species of these grasslands. Thus, our goal was to characterize seed traits and germination requirements of three native species of the tribe Tigridieae (Iridaceae, Iridoideae) due to its richness in the Pampa biome and the contrasting morphology, cytogenetics, and geographic distributions of its representatives. We tested if closely related species possess similar seed traits and whether species with wider distributions have broader germination requirements. Seed production and mass were estimated, and morphological analyses, germination...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dormancy; Functional traits; Germination; Grasslands; Iridaceae; Photoinhibition; Regeneration niche; Reproductive ecology; Seed morphology; Time-to-event analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400730

Fruits of neotropical species of the tribe Malveae (Malvoideae - Malvaceae): macro- and micromorphology
Provedor de dados: 39
Autores: Masullo,Fernanda de Araújo; Siqueira,Sanny Ferreia Hadibe; Barros,Claudia Franca; Bovini,Massimo G.; Toni,Karen L. G. De.
ABSTRACT Fruit morphology of the tribe Malveae has been discussed since the first taxonomic classifications of Malvaceae. The fruits are schizocarps, with some genera possessing an endoglossum. Besides morphological variation in the endoglossum, other differences include the number seeds per locule and ornamentation of the exocarp. An in-depth study of the fruit morphology of Malveae is essential to gain insight into the relationships among taxa of the tribe. Therefore, the present study aimed to describe the fruit morphology of Malveae, including micromorphology, variation in endoglossum structure and arrangement of seeds in the locule, to comprehensively evaluate the systematic relationships among its contained taxa. The results indicate morphological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endoglossum; Mericarps; Pericarp; Schizocarp; Seeds.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200301

Soil seed bank in a subtropical grassland under different grazing intensities
Provedor de dados: 39
Autores: Silva,Graziela Har Minervini; Overbeck,Gerhard Ernst.
ABSTRACT Grazing is an important determinant for the composition and structure of grasslands; however, soil seed bank (SSB) response to grazing intensity is poorly investigated. We analyzed SSB richness and density in a subtropical grassland in southern Brazil with different forage offers (low, intermediate, high and very high), that is, contrasting grazing intensities. The SSB was evaluated by the seedling emergence method. We collected ten SSB samples at two layers (0-5 and 5-10 cm) in spring and autumn in each of grazing intensity treatments. We surveyed the established vegetation to assess its similarity with the SSB. Treatment effects were analyzed by Poisson regression while compositional differences were visualized by ordination. We found 103...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disturbance; Grassland management; Pampa; Plant community dynamics; Recovery potential; Resilience; Transient seed bank.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200360

Fissuroma (Aigialaceae: Pleosporales) appears to be hyperdiverse on Arecaceae: evidence from two new species from southern Thailand
Provedor de dados: 39
Autores: Konta,Sirinapa; Hyde,Kevin David; Eungwanichayapant,Prapassorn Damrongkool; Doilom,Mingkwan; Tennakoon,Danushka Sandaruwan; Senwanna,Chanokned; Boonmee,Saranyaphat.
ABSTRACT Thailand and other tropical regions have high fungal diversity. Our investigation and examination of microfungi on palms (Arecaceae) revealed two new ascomycetous species of Fissuroma. Fissuroma arengae and F. wallichiae spp. nov. are introduced using morphological and phylogenetic evidence. The novel species have coriaceous ascomata, cylindrical-clavate asci and ascospores with a distinct and thin mucilaginous sheath. Fissuroma arengae is similar to F. wallichiae but can be distinguished by minor morphology, host substrate and gene base-pair differences. Phylogenetic analyses of combined LSU, ITS, SSU, tef1-α and rpb2 sequence data showed that these strains grouped within Fissuroma, further confirming this genus as monophyletic. The two new...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphology; Palm fungi; Phylogeny; Thai fungi; Two novel taxa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200384

Antifungal activity of selected plant extracts based on an ethnodirected study
Provedor de dados: 39
Autores: Silva,Flávia dos Santos; Landell,Melissa Fontes; Paulino,Gustavo Vasconcelos Bastos; Coutinho,Henrique Douglas Melo; Albuquerque,Ulysses Paulino.
ABSTRACT Plants have been reported as used by local populations to treat various infections for a long time, which has directed several pharmacological studies. The main aim of this work was to evaluate three plant selection criteria with better predictive power to detect extracts with antifungal action: (1) medicinal plants that are not used for indications of infection and inflammation; (2) plants with direct citations for inflammation, except for infection; (3) plants with direct citations for inflammation and infection selected quantitatively by Syndromic Importance Value (SIV). We tested the action of 23 hydroethanolic extracts of plants against the fungi Candida albicans, Cryptococcus neoformans, and Cryptococcus gattii and found no differences in...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Antifungal activity; Ethnobotany; Ethnopharmacology; Natural products; Local medical systems.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200442

Structural assessment of a population of Anacardium humile subjected to fire during different periods of the year
Provedor de dados: 39
Autores: Sousa,Diego Guimarães de; Cunha,Hélida Ferreira da.
ABSTRACT Understanding how fire affects the plant biota of the Cerrado is essential for formulating conservational strategies. We evaluated the effects of fires during different periods of the year on the populational structure of Anacardium humile. The research was carried out in areas of typical cerrado stricto sensu in the territory of the Kalunga, state of Goiás, Brazil. These areas, which comprise the same population, were submitted to the following treatments: unburned (control), burned in May 2016 (early fire - EF), and burned in September 2016 (late fire - LF). In July 2018, we delimited two contiguous transects of 100 x 20 m, subdivided into 10 plots of 20 x 20 m, in each area. Fire stimulated the development of branches from basal regrowth in EF...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anacardiaceae; Burning; Cerrado; Fire; Impact; Regimes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200401

Increasing the known floristic diversity of Brazilian inselbergs: two new species of Mandevilla (Apocynaceae) from Espírito Santo
Provedor de dados: 39
Autores: Morales,Juan Francisco; Kollmann,Ludovic J.C.
ABSTRACT Two new species of Mandevilla endemic to inselbergs of the state of Espírito Santo, Brazil, are described. Mandevilla alata resembles M. callista but differs by having winged stems, shorter petioles, shorter pedicels, and a white corolla with a red throat. Mandevilla ibitubana resembles M. grazielae but differs by having short-petiolate leaves, a white corolla, and shorter anthers. Illustrations, a distribution map, conservation assessments and a key to species of Mandevilla growing on inselbergs in Espirito Santo are included.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apocynoids; Ibituba; Mesechiteae; Santa Teresa; Pancas.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100107

A review of common parameters and descriptors used in studies of the impacts of heavy metal pollution on marine macroalgae: identification of knowledge gaps and future needs
Provedor de dados: 39
Autores: Costa,Giulia Burle; Koerich,Gabrielle; Ramos,Bruna de; Ramlov,Fernanda; Martínez-Crego,Begoña; Costa,Monya M.; Jesus,Dora; Santos,Rui O.P.; Horta Jr.,Paulo A.
ABSTRACT  This study presents a systematic review to assess the main similarities and gaps in efforts to evaluate the impacts of heavy metals on benthic marine seaweeds. A total of 91 studies were compiled, the main parameters (abiotic, biological, ecotoxicological, and heavy metals) and descriptors of which were evaluated by quantitative and qualitative analyses. Our results indicate the importance of diversifying searches by including different languages (i.e. English, Portuguese and Spanish). Most of the studies were field characterizations, with few abiotic parameters and/or seasonality evaluations being employed. In contrast, the assessment of ecotoxicological parameters was highly frequent, which seems incoherent considering the absence of data to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal management; Heavy metal impacts; Parameter replication efforts; Pollution descriptors; Systematic literature review.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300460

The pattern of high plant diversity of Neotropical inselbergs: highlighting endemic, threatened and unique species
Provedor de dados: 39
Autores: Pinto-Junior,Herval Vieira; Villa,Pedro Manuel; Pereira,Miriam Cristina Alvarez; Menezes,Luis Fernando Tavares de.
ABSTRACT Understanding how multiple drivers shape plant community diversity across environmental gradients is one of the most important issues in plant ecology and biodiversity conservation. We aimed to analyse plant community structure and diversity in four inselbergs in Espírito Santo State, Brazil. We evaluated species diversity, floristic composition and similarity, phytosociological structure, occurrence, and conservation status of rupicolous flora in the inselberg communities. We used field expeditions and plant inventory data from 370 sampling units. We estimated floristic similarity and compared diversity indexes among inselbergs. We observed marked differences in community structure and diversity among inselbergs, where the southern region had the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alpha diversity; Atlantic Forest; Biodiversity conservation; Floristic composition; Latitudinal gradient; Phytosociological structure; Rock outcrop.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400645

Elevated atmospheric CO2 increases Eucalyptus urophylla S. T. Blake stem diameter by stimulating cell proliferation and reducing lignin deposition
Provedor de dados: 39
Autores: Innocente,Patricia Sitta; Teixeira,Simone Pádua; Balbuena,Tiago Santana.
ABSTRACT In 2019, the atmospheric CO2 concentration exceeded the 415 ppm milestone for the first time in the human history. According to projections of the Intergovernmental Panel on Climate Change (IPCC), CO2 levels will continue to rise in the future, potentially affecting all living organisms. Plants with C3 metabolism may benefit from rising CO2 levels because the significant losses of photosynthesis, driven by photorespiration could be diminished under this scenario. This study addressed the anatomical changes in the stems of young Eucalyptus urophylla plants induced through cultivation in elevated CO2 (eCO2). Plants cultivated under eCO2 showed increased stem diameter (i.e., radial width of the secondary xylem, secondary phloem and cortex tissues)....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Carbon dioxide; Climate change; Eucalyptus; Lignin; Plant stress; Stem anatomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300589

Pollen sources used by Frieseomelitta Ihering 1912 (Hymenoptera: Apidae: Meliponini) bees along the course of the Rio Negro, Amazonas, Brazil
Provedor de dados: 39
Autores: Pimentel,Alyne Daniele Alves; Absy,Maria Lucia; Rech,André Rodrigo; Abreu,Vanessa Holanda Righetti de.
ABSTRACT Insect pollination has influenced the evolution and diversification of angiosperms. Consequently, knowing plants used as food sources by bees, the most important pollinator group, is the first step toward understanding how their ecological relationships works. Pollen source information is also highly relevant for bee management and associated fruit and seed production. Accordingly, to improve understanding of the trophic ecology of these bees and their relationships with native Amazonian plants the current study identified, quantified and compared pollen stored in nests of Frieseomelitta stingless bees along the Rio Negro, Amazonas, Brazil. A total of 31 pollen pots were sampled and found to contain 65 pollen types distributed across 52 genera and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Feeding behavor; Meliponicultura; Stingless bees; Trophic resources.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200371

Fire cues and germination of invasive and native grasses in the Cerrado
Provedor de dados: 39
Autores: Gorgone-Barbosa,Elizabeth; Daibes,Luís Felipe; Novaes,Rafael B.; Pivello,Vânia Regina; Fidelis,Alessandra.
ABSTRACT Fire-related cues may enhance seed recruitment in flammable ecosystems and differences in fire-germination responses of invasive vs. native species can drive the invasion process. We evaluated the effects of heat shock and smoke water solution treatment on seed germination of invasive (Melinis minutiflora, Urochloa decumbens, U. brizantha) and native grasses (Axonopus pressus, Aristida setifolia, Gymnopogon foliosus) of the Cerrado. The effect of fire temperature was tested by exposing seeds to heat shock treatments of 60, 100, and 200 °C for one minute, comparing them to untreated seeds. The effect of smoke was tested by soaking seeds for 24-h in an aqueous smoke comparing them to seeds soaked in distilled water. Differences among treatments were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: African grasses; Cerrado grasses; Fire temperature; Melinis minutiflora; Smoke solution; Urochloa brizantha; Urochloa decumbens.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100185

What are the drivers of popularity and versatility of medicinal plants in local medical systems?
Provedor de dados: 39
Autores: Caetano,Roberta de Almeida; Albuquerque,Ulysses Paulino de; Medeiros,Patrícia Muniz de.
ABSTRACT The cultural importance of medicinal plants has been measured in terms of popularity (number of people who know a plant) and versatility (number of therapeutic indications mentioned for a plant). Previous works have provided evidence about some drivers of medicinal plant importance, such as attributes of availability, efficiency, palatability and taste. The present study tested whether local perception of efficiency, availability (ease of acquisition), palatability (degree of pleasantness), and taste influence the popularity and versatility of medicinal plants in two rural communities of Buíque, Brazil. Free-listing was applied to identify the medicinal plants known/utilized in the communities, while semi-structured interviews were performed to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ethnobiology; Local pharmacopoeias; Quantitative ethnobotany; Seasonally dry tropical forests; Socioecological systems.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200256

Use of limestone and agricultural gypsum in cauliflower crop management and clubroot control in mountain farming
Provedor de dados: 1
Autores: Santos, Carlos Antônio dos; Carmo, Margarida Goréte Ferreira do; Bhering, Aline da Silva; Costa, Evandro Silva Pereira; Amaral Sobrinho, Nelson Moura Brasil do.
The effects of the dose and application method of limestone - broadcast or in furrow - and of agricultural gypsum on soil fertility, the control of clubroot, and cauliflower development in mountain farming areas were evaluated. Initially, four doses of broadcast limestone (0.0, 1.0, 2.0, and 4.0 Mg ha-1) and two cauliflower cultivars (Sharon and Piracicaba Precoce) were analyzed. A second experiment evaluated limestone (4.0 Mg ha-1) application treatments: broadcast and in furrow, broadcast limestone + gypsum (3.0 + 1.0 Mg ha-1), and broadcast gypsum (1.0 Mg ha-1). Soil fertility was improved, and significant increases were observed in the total and healthy root volume with increasing doses of limestone. With 4.0 Mg ha-1, a 58 and 85% increase in yield was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica oleracea var. botrytis; Plasmodiophora brassicae; Liming; Slope; Application method. Brassica oleracea var. botrytis; Plasmodiophora brassicae; Liming; Slope; Application method.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42494

Bell pepper production under saline stress and fertigation with different K+/Ca2+ ratios in a protected environment
Provedor de dados: 1
Autores: Silva, Ricardo Carlos Pereira da; Oliveira, Francisco de Assis de; Oliveira, Ademar Pereira de; Medeiros, José Francismar de; Alves, Rita de Cássia; Paiva, Francisco Italo Gomes.
Bell peppers are sensitive to salinity; therefore, it is necessary to find alternatives to reduce saline stress. An experiment was conducted in a greenhouse at Federal Rural University of the Semi-Arid Region, in Mossoró, Rio Grande do Norte State, Brazil, to evaluate the effects of salinity and K+/Ca2+ ratios on bell pepper production. The experimental design consisted of randomized blocks in a 5 x 4 factorial scheme with four replicates, corresponding to five K+/Ca2+ ratios (F1 = 3.3/1, F2 = 2.8/1, F3 = 2.2/1, F4 = 1.8/1, and F5 = 1.5/1) and four salinity levels in the nutrient solution using NaCl (1.75, 3.25, 4.75, and 6.25 dS m-1). The following parameters were evaluated: the number of fruits (total, marketable and unmarketable), the mean weight of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum L.; Salinity; Potassium; Calcium; Soilless culture. Capsicum annuum L.; Salinity; Potassium; Calcium; Soilless culture.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42498

3D soil void space lacunarity as an index of degradation after land use change
Provedor de dados: 1
Autores: Santos, Carlos Renato dos; Antonino, Antônio Celso Dantas; Heck,  Richard John; Lucena, Leandro Ricardo Rodrigues de; Oliveira, Alex Cristóvão Holanda de; Silva, Antonio Samuel Alves da; Stosic, Borko; Menezes, Romulo Simões Cezar.
In this work, lacunarity analysis is performed on soil pores segmented by the pure voxel extraction method from soil tomography images. The conversion of forest to sugarcane plantation was found to result in higher sugarcane soil pore lacunarity than that of native forest soil, while the porosity was found to be lower. More precisely, this study shows that native forest has more porous soil with a more uniform spatial distribution of pores, while sugarcane soil has lower porosity and a more heterogeneous pore distribution. Moreover, validation through multivariate statistics demonstrates that lacunarity can be considered a relevant index of clustering and can explain the variability among soils under different land use systems. While porosity by itself...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lacunarity; Soil porosity; Impact of land use change. lacunarity soil porosity impact of land use change.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42491

Estimates of genetic parameters and path analysis of crambe: An important oil plant for biofuel production
Provedor de dados: 1
Autores: Vasconcelos, Ubieli Alves Araújo; Dias, Luiz Antônio dos Santos; Corrêa, Thais Roseli; Rosmaninho, Lucas Barbosa de Castro; Silva, Dandara Rêgo Muniz da; Zaidan, Iasmine Ramos.
Crambe is an oilseed plant producing oil that can be used for various industrial purposes, including the production of biofuel. It is a short-cycle, non-food plant that can be grown as a second crop following soybean or corn crops and using the same agricultural machinery. This work aimed to estimate genetic parameters and correlations between traits of genotypes grown for two years in seven locations in two Brazilian states. The cultivar FMS Brilhante and the lines CR 1101, CR 1102, CR 1105, CR 1202, CR 1303, and CR 1304 were used. The traits evaluated were grain yield (YD), plant height (PH), stem diameter (SD), first fruiting branch height (BH), 1,000-seed weight (SW), and number of branches (NB). The correlations between traits were identified from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding; Biofuels; Oleaginous plants; Brassicaceae breeding; Biofuels; Oleaginous plants; Brassicaceae.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42490

Genetic diversity and population structure of sugarcane (Saccharum spp.) accessions by means of microsatellites markers
Provedor de dados: 1
Autores: Zeni Neto, Hugo; Borsuk, Luiz Gustavo da Mata; Santos, Luiz Renato Frederico  dos; Angeli, Henrique Sanches; Berton, Guilherme Souza; Sousa, Lorena Lopes de.
The success of sugarcane (Saccharum spp.) breeding programs depends on the choice of productive parent lines that have a high industrial yield and are genetically divergent. This study assessed the genetic divergence and population structure of sugarcane accessions that are the parents of the RB05 Series of the Sugarcane Breeding Program of Brazil. The DNA of 82 accessions was evaluated using 36 simple sequence repeat markers. The Jaccard similarity coefficient and Unweighted Pair Group Method with Arithmetic Mean clustering method were used to generate a cluster that was divided into 17 distinct groups derived from probabilistic models. The similarity coefficient used in both cases showed that the degree of similarity varied from 0.4716 (RB971551 x...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polymorphism content; UPGMA; Similarity; RB Series. polymorphism content UPGMA similarity RB Series Divergência Genética.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/45088

Multiple resistance of Conyza sumatrensis to three mechanisms of action of herbicides
Provedor de dados: 1
Autores: Albrecht, Alfredo Junior Paiola; Pereira, Vinicius Gabriel Caneppele; Souza, Cristian Natalino Zanfrilli de; Zobiole, Luiz Henrique Saes; Albrecht, Leandro Paiola; Adegas, Fernando Storniolo.
Fleabane (Conyza spp.) is an important weed in grain production systems and is currently one of the most problematic weeds in Brazil. An important factor related to weeds such as fleabane is the characteristic of herbicide-resistant biotypes developed under selection pressure, with multiple resistance previously detected for Conyza spp. Thus, the aim of this study was to demonstrate the multiple resistance of Conyza sumatrensis to the herbicides paraquat, glyphosate, and chlorimuron. From the F2 seeds of biotypes with suspected resistance to paraquat, glyphosate, and chlorimuron, dose-response greenhouse experiments were conducted for the three herbicides. Herbicides were applied when the plants had 6-8 leaves that were at a height of 8 cm. At the end of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conyza spp.; Dose-response; Paraquat; Glyphosate; Chlorimuron. Conyza spp.; Dose-response; Paraquat; Glyphosate; Chlorimuron.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42485

Sunflower performance as a function of phosphate fertilization in semiarid conditions
Provedor de dados: 1
Autores: Soares, Enielson Bezerra; Barros Júnior, Aurélio Paes; Albuquerque, José Ricardo Tavares de; Santos, Manoel Galdino dos; Lins, Hamurábi Anizio; Bezerra Neto, Francisco.
The objective of this work was to evaluate the response of sunflower cultivars submitted to increasing levels of phosphate fertilization in two crops. The experimental design was a randomized complete block design with four replicates in subdivided plots, where five doses of simple superphosphate (0, 50, 100, 150, and 200 kg ha-1 P2O5) were allocated to the plots and three sunflower cultivars (Aguará 06, Altis 99, and Embrapa 122-V2000) were assigned to the subplots. The variables evaluated were the P content in the diagnostic leaf, number of achenes per capitulum, achene yield (kg ha-1), oil content (%) and oil yield. The phosphorus doses increased the components of production. The dose that provided the best sunflower performance varied for the different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Helianthus annuus L.; Oleaginous; Time of cultivation; Nutrition. 5.01.03.00-8 Helianthus annuus L.; Oleaginous; Time of cultivation; Nutrition.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42960

Dynamics of proteins, carbohydrates and global DNA methylation patterns during induction of nodular cluster cultures from seeds of Vriesea reitzii
Provedor de dados: 1
Autores: Corredor, Jenny; De Conti, Daniela; Guerra, Miguel Pedro; Dal Vesco, Lirio Luiz; Pescador, Rosete.
Tissue culture techniques have been employed for bromeliad mass propagation by means of the morphogenetic route of nodular cluster cultures (NCs). This study aimed to assess protein, carbohydrate and global DNA methylation (GDM) level dynamics during NCs induction from Vriesea reitzii seeds. Seeds were inoculated into Murashige and Skoog (MS) liquid medium supplemented with 4 µM α-naphthaleneacetic acid (NAA) to induce NCs and in culture medium without plant growth regulators to form normal seedlings. Samples collected at 0, 3, 7, 10, 14, and 21 days of culture were analyzed. All parameters assessed showed the same variation pattern. However, seeds inducing NCs showed significantly lower starch (6.0 mg g-1 FM), carbohydrate (10.7 mg g-1 FM) and GDM (11.0%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bromeliaceae; Bromeliad; Germination; Micropropagation; Seedling. Bromeliaceae bromeliad germination micropropagation seedling.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42448

Pretreatment of forage legumes under moderate salinity with exogenous salicylic acid or spermidine
Provedor de dados: 1
Autores: Pizolato Neto, Antonio; Alves, Rita de Cássia; Camargos, Ayza Eugênio Viana; Gratão, Priscila Lupino; Carregari, Sônia Maria Raymundo; Zingaretti, Sonia Marli; Santos, Durvalina Maria Mathias Dos.
The present study aims to determine whether exogenous salicylic acid (SA) or spermidine (Spd) has any protective effect against salt stress. Seeds were subjected to 0, 20, 40, and 60 mM NaCl with or without salicylic acid or spermidine (0.5 mM) for 10 days. The evaluated variables were germination rate, shoot and root dry masses, glycine betaine content, lipid peroxidation, and the activities of superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX). The data were subjected to Tukey’s test (p ≤ 0.05). There was a growth increase, especially in plant shoots. The reduction in lipid peroxidation, as indicated by lower malondialdehyde (MDA) levels, can be explained by an increase in antioxidant activity when SA and Spd were added. When...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cajanus cajan; Dolichos lablab; Salt stress; Glycine betaine; Oxidative stress; Growth. Cajanus cajan; Dolichos lablab; Salt stress; Glycine betaine; Oxidative stress; Growth. Fisiologia Vegetal.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42809

Osmolyte accumulation and antioxidant metabolism during germination of vigorous maize seeds subjected to water deficit
Provedor de dados: 1
Autores: Prazeres, Camila Segalla; Coelho, Cileide Maria Medeiros.
The objective of this work was to evaluate the alterations of antioxidant enzyme reserves and antioxidant enzymes during germination under water deficit in maize hybrids and to associate with seed vigor, determining the mechanisms related to tolerance for this stress. Two three-way maize hybrids were characterized by their vigor at different levels of water deficit induced by polyethylene glycol 6000. Next, the seeds were hydrated at different osmotic potentials (0.0, -0.3, and -0.9 MPa) and removed at different times to assess the levels of the total soluble protein, total soluble sugars, proline, starch, and antioxidant enzymes, such as superoxide dismutase, catalase and ascorbate peroxidase. The analysis of variance, Tukey test at 5% and principal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays L.; Vigor; Antioxidant enzymes; Reserve compounds. Zea mays L vigor antioxidant enzymes reserve compounds.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42476

Mineral supplementation of soybean seeds with different initial nutrient levels
Provedor de dados: 1
Autores: Conceição, Gerusa Massuquini; Cunha, Vinícius dos Santos; Fipke, Glauber Monçon; Bruning, Lucas Allan; Rossato, Anderson da Costa; Martin, Thomas Newton.
The objectives of this study were to evaluate the effect of the chemical composition of soybean seeds and the efficiency of seed mineral supplementation on physiological quality and field performance. Two seed lots (high and low levels of mineral nutrition), with or without supplemental macro- and micronutrients, of three soybean cultivars (BMX Potência RR, BMX Turbo RR, and BMX Magna RR) were used. For the laboratory experiment, a completely randomized design with four replications was used. To evaluate the physiological quality of the seeds, the water content, first count, germination, 1,000-seed weight, and length and dry weight of the seedling were determined. For the field experiment, a randomized block design with four replications was used, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max (L.) Merrill; Seed physiology; Physiological quality; Chemical composition. Glycine max (L.) Merrill; Seed physiology; Physiological quality; Chemical composition.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42484

Fruit shape regulates susceptibility of tomato to blossom-end rot
Provedor de dados: 1
Autores: Riboldi, Lucas Baiochi; Araújo, Sabrina Helena da Cruz; Freitas, Sérgio Tonetto de; Castro, Paulo Roberto Camargo.
Calcium (Ca2+) is a nutrient in tomato plants, of which deficiency usually causes several problems including a physiological disorder known as blossom-end rot (BER) in the fruit. The objective of this study was to evaluate and identify morphological and physiological characteristics related to the susceptibility of tomato varieties to BER. The varieties studied were ‘Amalia’, ‘IPA-6’, ‘M-82’, ‘Mara’, and ‘Nagcarlan’, presenting different fruit formats. Physiological parameters that negatively correlated with BER were plant water potential, leaf area, plant dry mass, relationship between proximal/distal Ca2+, K+ content in the proximal and distal portions of the fruit, and proximal Ca2+ content. Physiological parameters that positively correlated with BER...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blossom-end rot; Tomato varieties; Ca2  disorder; Fruit length; Fruit Ca2; Cell wall-bound Ca2 . Blossom-end rot Tomato varieties Ca2  disorder Fruit length Fruit Ca2 Cell wall-bound Ca2.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42487

Variability of harvest loss in relation to physiological characteristics of cotton
Provedor de dados: 1
Autores: Kazama, Elizabeth Haruna; Silva, Rouverson Pereira da; Carneiro, Franciele Morlin; Teixeira, Daniel de Bortoli; Vale, Welington Gonzaga do; Pereira, Gener Tadeu.
Pearson's correlation and spatial variability are tools that can be used to help one understand the process of losses in the mechanical harvesting of cotton. Therefore, the objective of this study was to model the spatial distribution and map the losses of mechanical cotton harvest using geostatistics and to correlate the losses with agronomic variables using Pearson’s correlation. The experiment was conducted in Itiquira and Lucas do Rio Verde, Mato Grosso State, Brazil. At each sampling point, the evaluated variables were agronomic plant variables and cotton losses in the soil and the plant (divided into lower, medium and upper thirds) and the sum total of losses. The highest losses in cotton harvest occurred in the lower third and on the soil, both of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium hirsutum; Geostatistics; Precision agriculture. Mecanização agrícola Agricultura de precisão Gossypium hirsutum; Geostatistics; Precision agriculture.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42587

Activity invertase and amylase in Marandu grass under shading and nitrogen fertilization
Provedor de dados: 1
Autores: Coura, Florence Taciana Veriato; Fries, Daniela Deitos; Quoos, Rodrigo Diego; Teixeira, Fábio Andrade; Pires, Aureliano José Viera; Figueiredo, Abdias José de.
The objective of this study was to evaluate the activity of invertases and amylases in Brachiaria brizantha cv. Marandu under various shade and nitrogen fertilization conditions. The experiment was carried out in a greenhouse using a 4 x 2 factorial scheme (shading levels of 0, 30, 50, and 80% and fertilization with 0 and 100 kg N ha-1). The activity of the enzymes, cytosol-neutral invertase (Inv-N), vacuole acid (Inv-V) and cell-acidic acid (Inv-CW), reducing sugars (RS), and α and β-amylases were evaluated (α = 0.05). The interaction was significant for Inv-N within the leaf. In the first cycle, the highest activity was in fertilized plants with 30, 50, and 80% shading. For Inv-CW in the 1st cycle, the highest activity occurred with 0, 30, and 50%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbohydrates; Invertases; Photosynthesis. carbohydrates invertases photosynthesis.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42496

Screening common bean germplasm for resistance to genetically diverse Sclerotinia sclerotiorum isolates from Argentina
Provedor de dados: 1
Autores: Abán, Carla Luciana; Taboada, Gisel Maria; Casalderrey, Norma Beatriz; Maggio, Maria Elisa; Chocobar, Mario Osvaldo; Spedaletti, Yamila Andrea; Gonzalez, Mónica Alicia Aparicio; Vizgarra, Oscar Vicéforo; Galván, Marta Zulema.
White mold caused by Sclerotinia sclerotiorum (Lib.) de Bary is a devastating disease that affects the common bean (Phaseolus vulgaris. L) crop worldwide. In Argentina, white mold has been detected in all bean production areas, reaching seed yield and quality losses up to 100% on susceptible common bean cultivars under favorable weather conditions. The aim of this study was to screen the physiological resistance of 20 common bean accessions to five genetically distinct isolates of S. sclerotiorum collected from the main common bean growing area of Argentina, using the greenhouse straw test. The white mold reaction was scored at 7, 14, and 21 days post-inoculation using a 1 (no disease symptoms) to 9 (severely diseased or dead plants) scale and the area...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris white mold disease resistance straw test. Fitopatologia Melhoramento Vegetal Phaseolus vulgaris; White mold; Disease resistance; Straw test.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42786

Effects of in ovo injection of nano-selenium and nano-zinc oxide and high eggshell temperature during late incubation on antioxidant activity, thyroid and glucocorticoid hormones and some blood metabolites in broiler hatchlings
Provedor de dados: 2
Autores: Shokraneh, Meisam; Sadeghi, Ali Asghar; Mousavi, Seyed Naser; Esmaeilkhanian, Saeid; Chamani, Mohammad.
This experiment was conducted to evaluate the effects of in ovo injection of nano-selenium (Nano-Se) and nano-zinc oxide (Nano-ZnO) and high eggshell temperature (EST) during late incubation on blood parameters of broiler hatchlings. A total of 750 fertile eggs, were weighed and randomly distributed among 5 treatment groups on each of 5 replicate tray levels. The injection was performed on 17 d of incubation. Treatments included of: 1) Eggs not injected and incubated at normal EST (control); 2) Eggs not injected and incubated at high EST; 3) Eggs injected NaCl solution and incubated at high EST (sham); 4) Eggs injected NaCl solution containing 40 µg Nano-Se and incubated at high EST; 5) Eggs injected NaCl solution containing 500 µg Nano-ZnO and incubated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: In ovo injection; Nano-selenium; Nano-zinc oxide; High eggshell temperature; Blood.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46029

Genetic analysis of reproductive characteristics in Iran-Black sheep
Provedor de dados: 2
Autores: Baneh, Hasan; Ahmadpanah, Javad; Mohammadi, Yahya.
This study was conducted to estimate genetic parameters and trends for reproduction traits using data collected at the breeding station of Iran-Black sheep during 1980 to 2004. The traits included in the analyses were litter size at birth (LSB) and weaning (LSW) and litter mean weight per lamb born (LMWLB) and weaned (LMWLW) as basic traits, and total litter weight at birth (TLWB) and weaning (TLWW) as composite traits. Direct heritability estimates for LSB, TLWB, LMWLB, LSW, TLWW and LMWLW were 0.11, 0.07, 0.33, 0.08, 0.09 and 0.11, respectively. The permanent environmental effects had significant impact on all traits and ranged from 0.05 to 0.16. Effect of service sire was highly significant (p &amp;lt; 0.01) for all traits except LMWLW. Estimates of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Iran-Black sheep; Reproduction traits; REML.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47380

Macauba palm cake as additive in elephant grass silage
Provedor de dados: 2
Autores: Silveira, Hugo Vinícius Lelis; Braz, Thiago Gomes dos Santos; Rigueira, João Paulo Sampaio; Santos, Márcia Vitória; Gusmão, Jéssica Oliveira; Alves, Matheus Almeida; Martuscello, Janaina Azevedo; Mourthé, Mário Henrique França.
The aim of this study was to evaluate the addition of macauba palm cake (Acrocomia aculeata) on the chemical composition, fermentation and aerobic stability of elephant grass silages (Pennisetum purpureum). The experiment was performed in a completely randomized design with four replicates. The treatments were composed of six levels of macauba palm cake (0, 6, 12, 18, 24, 30%) as additive to elephant grass silage. Dry matter and ethereal extract content of the silage increased linearly with the inclusion of the additive. Addition levels of 15.54% would provide 35% of dry mass, and the limit of 7.00% of ethereal extract in the silage could be obtained with 10.47%. The neutral detergent fiber content reduced linearly from 68.97 to 52.59%, but lignin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acrocomia aculeata aerobic stability chemical composition dry matter losses effluent production pH Acrocomia aculeate; Aerobic stability; Chemical composition; Dry mass losses; Effluent production; PH.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47171

Natural and synthetic pigments in diet of Japanese quails
Provedor de dados: 2
Autores: Valentim, jean kaique; Bittencourt, Tatiana Marques; Lima, Heder José D'Àvilla; Barros, Fernanda Keller Queiroz; Almeida, Guilherme Resende de; Ziemniczak,  Henrique Momo.
The objective of this study was to evaluate productive performance and egg quality of Japanese quails (Cortunix japonica) fed with synthetic and natural pigments. The treatments used were: 0.8% paprika extract (Capsicum annuum), 0.8% marigold flower extract, 4% paprika extract and 4% marigold flower extract and 0.045% synthetic pigment (Canthaxanthin) in feed. A total of 240 Japanese quails at 20 weeks of age were distributed in a completely randomized experimental design with five treatments and six replicates, with eight quails per experimental unit (30 experimental units). There was no difference (p &amp;gt; 0.05) for the evaluated parameters, except for yolk color which showed significant difference (p &amp;lt; 0.05) between the treatments used. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; Canthaxanthin; Yolk color; Plant extracts.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47364

Drone production, semen viability and spermatozoa longevity of Africanized Apis mellifera
Provedor de dados: 2
Autores: Halak, André Luiz; Santos, Pedro da Rosa; Rossi, Robson Marcelo; Wielewski, Priscila; Moraes, Gentil Vanini de; Toledo, Vagner de Alencar Arnaut de.
Characteristics correlated with beekeeping production, less influenced by the environment and that can be controlled by management techniques, can help in the selection of colonies with higher production capacity, aiming to improve breeding programs. This research was carried out to evaluate the production of Africanized Apis mellifera drones and the longevity of spermatozoa from different genetic groups when supplemented with protein or not. Two genetic groups were used: one selected for royal jelly production from the Africanized honeybee breeding program and another without genetic selection. In both groups, the number of drone brood and the quality of semen were evaluated every 30 days, for five months. Statistical analysis was performed using Bayesian...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Honeybee genetics; Honeybee nutrition; Soybean protein; Africanized honeybee reproduction. honeybee genetics; Honeybee nutrition; Soybean protein; Africanized honeybee reproduction.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/49050

Investigating the performance of polyester microfibers in situ bags using different weft yarn count and density
Provedor de dados: 2
Autores: Hanafy, Doaa Elgohary; Hamoda, Dina Mohamed; Khattab, Ibrahim Mohamed; Aboamer, Ahmed Abdelkader.
Microfiber fabrics are more efficiency in retaining fine-particles that increase the variation in in situ degradability. The aim of this was to examine the performance of in situ bags made from different microfiber fabric for meeting the required specification and their ruminal degradability compared with standard Ankom in situ bags. Four fabrics were manufactured using polyester microfiber with 1.04 denier, weft yarn counts (150 and 300), weft density (22 and 28 picks / inch), plain 1/1 textile structure. Physical and mechanical properties of manufactured fabrics were measured before and after incubation. Ruminal degradability was measured for three feedstuffs (soybean meal, wheat bran and berseem hay) using three rumen-fistulated rams as a replicates...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ankom bags; Fabric; Feedstuffs; Incubation; Nutrient; Pore size. ankom bags; Fabric; Feedstuffs; Incubation; Nutrient; Pore size.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48478

Vinasse in the diet of lactating sows and its effect on litter
Provedor de dados: 2
Autores: Barros, Dandara Silva; Valentim, Jean kaique; Medeiros, Silvana Lúcia dos Santos; Faria, Sandra Regina; Pereira, Isabelli Dias Brito; Pietramale, Rita Therezinha Rolim; Lima, Heder José D'Àvilla; Garcia, Rodrigo Garófallo.
The aim of this study was to verify the impact of adding vinasse as an acidifier in sows diet during the lactating period and its effect on litter. A total of 14 agroceres females were used from the first day of lactation until weaning. The vinasse was obtained in a mill near the experimental facility and was stored in sterilized barrels. Animals were distributed in a completely randomized experimental design into two treatments: control liquid diet and liquid diet with the inclusion of vinasse in each feed supply of the day. The diets were supplied four times a day, containing a mixture of ½ L of vinasse and ½ L of water. Feed leftovers were weighted daily. Feed intake was used to evaluate sows’ performance. The piglets were weighted every week after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cidifiers; Sows; Progeny; Sugarcane stillage. cidifiers; Sows; Progeny; Sugarcane stillage.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48152

Passion fruit waste in diets for quail in the laying phase
Provedor de dados: 2
Autores: Pereira, Adriana Aparecida; Alcântara, Rosineide Silva de; Moura, Andressa Souza de; Griep Júnior, Dirceu Neutzling; Vieira, Gisele Maria Nunes; Almeida, José Rafael da Silva.
&amp;nbsp;It was aimed to evaluate the effect of including the waste from passion fruit pulp extraction in diets for Japanese quail in the laying phase on their production performance and egg quality. A total of 280 female quail were distributed into five treatments with eight replicates and seven birds per cage. Treatments consisted of 0, 2, 4, 6, or 8% inclusion of passion fruit waste in the diet. The experiment began with quail at 70 days of age and lasted 63 days, with performance evaluated every 21 days and egg quality in the last two days of each cycle. There was no difference between the treatments for feed intake, body weight, specific gravity, or eggshell thickness. However, a decreasing linear regression was obtained for feed intake with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: By-product Egg quality Performance. by-product; Egg quality; Performance.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48281

Quality of brown-shelled eggs marketed in different commercial establishments
Provedor de dados: 2
Autores: Souza, Thiago; Lopes, Claudia da Costa; Vieira, Rita Brito; Santos, Gabriela Coelho; Silva, Rodrigo Ferreira; Calixto, Ediane Santos; Azevedo, Jaine Alves.
This study aimed at evaluating the internal and external quality of brown-shelled eggs commercialized in the municipality of Parintins-AM. A total of 540 eggs were evaluated and distributed in a completely randomized design, which consisted of three treatments and six replications of 30 eggs each. The treatments were: eggs sold in supermarkets; in grocery stores; and eggs sold directly at the farm. The age of the eggs from supermarkets and grocery stores was unknown, however, the eggs bought at the farm were marketed as being from the day of laying. The collected data were submitted to analysis of variance and Tukey test at 5% probability. There were no differences (p &amp;gt; 0.05) of treatments in the percentage of dirty eggs, however, grocery and farm...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Albumen index; Commercial eggs; Egg pH; Shell quality; Haugh unit.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46552

Dietary supplementation of powdered and encapsulated probiotic: In vivo study on relative carcass, giblet weight and intestinal morphometry of local duck
Provedor de dados: 2
Autores: Ardiansah, Ilham; Sholiha, Kholifatus; Sjofjan, Osfar.
This research was aimed to evaluate the effect of dietary supplementation of either powdered or encapsulated probiotic on relative carcass, giblet weight and intestinal morphometry of local duck. One hundred twenty male day old duck (DOD) were distributed to 6 different dietary groups, included 2 probiotic forms of either powdered (T1) or encapsulated (T2) and 3 levels: 0% (L0), 0.2% (L1), 0.4% (L2). They were reared using pen cages for 42 days (6 weeks). Observed variables were relative carcass, giblet weight (gizzard, heart, liver) and intestinal morphometry (villus height, villus width, crypt depth). Data were analyzed by Nested of Completely Randomized Design ANOVA and if there was significant effect followed by Duncan’s Multiple Range Test (DMRT). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed; Poultry; Nutrition; Probiotic.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47140

Digestible methionine levels for white-egg layer pullets from 7 to 12 weeks of age
Provedor de dados: 2
Autores: Figueiredo Júnior, Jalceyr Pessoa; Costa, Fernando Guilherme Perazzo; Guerra,  Ricardo Romão; Santana, Marcelo Helder Medeiros; Lima, Matheus Ramalho de; Pinheiro, Sarah Gomes.
An experiment was carried out to evaluate the requirement of digestible methionine for growing pullets at growth phase (7 to 12 weeks of age). A completely randomized design was distributed in five treatments, six replicates, and 15 pullets per experimental unit. 450 Dekalb White pullets from the 7th weeks of age, with an average initial weight of 313.14 ± 12.49 g were used. Dietary treatments consisted in five diets supplemented with DL-Methionine which resulted in five levels of digestible methionine (0.266, 0.294, 0.322, 0.350, and 0.378 %). Performance, serological blood, histopathology and histomorphometry data were evaluated. Quadratic responses were observed for final live weight (p &amp;lt; 0.0143), weight gain (p &amp;lt; 0.0073), feed conversion...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enzymatic profile Essential amino acid Histology Morphometry. enzymatic profile; Essential amino acid; Histology; Morphometry.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47222

Production and quality of sunflower and Paiaguas palisadegrass silage in monocropped and intercropping in different forage systems
Provedor de dados: 2
Autores: Santos, Charles Barbosa dos; Costa, Katia Aparecida de Pinho; Souza, Wender Ferreira de; Oliveira, Itamar Pereira de; Teixeira, Daniel Augusto Alves; Costa, João Victor Campos Pinho.
The objective of this study was to evaluate dry mass production, fermentative parameters and chemical and bromatological composition of sunflower silage and Paiaguas palisadegrass silage in monocropped and intercropping in different forage systems. The experimental design consisted of randomized blocks, with four replicates. The treatments consisted of silage forage systems: sunflower monocropped; Paiaguas palisadegrass monocropped; sunflower row-intercropped with Paiaguas palisadegrass; sunflower inter-row intercropped with Paiaguas palisadegrass; and sunflower oversown and intercropped with Paiaguas palisadegrass, totalizing 20 experimental silos. Sunflower and Paiaguas palisadegrass were harvested at 110 days after planting at 20 cm from the soil for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria brizantha Ensilage helianthus annuus L crop-livestock integration. Brachiaria brizantha; Ensilage; Helianthus annuus L; Crop-livestock integration.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48304

Auto-lysed yeast and yeast extract effects on dry matter intake, blood cells counts, IgG titer and gene expression of IL-2 in lactating dairy cows under heat stress
Provedor de dados: 2
Autores: Adili, Sogol; Sadeghi, Ali Asghar; Chamani, Mohamad; Shawrang, Parvin; Forodi, Farhad.
The objective of this study was to assess the effects of auto-lysed yeast and yeast extract on performance and immune responses of cows in hot climate in the early lactation period. Twenty five lactating dairy cows randomly assigned to 5 groups and 5 replicates. Cows received basal diet with or without auto-lysed yeast (20 or 40 g/d/head) or yeast extract (20 or 40 g/d/head) as on top-dressed. There were no differences for daily dry matter intake, milk production milk fat and the counts of red blood cells and white blood cells among treatments (p &amp;gt; 0.05). There were significant differences among treatments for immunoglobulin G (IgG) level, lymphocyte and neutrophil percentages. Yeast extract had no effect on IgG level, but auto-lysed yeast increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Immunoglobulin G; Immune response; Interleukin-2; Lymphocyte; Neutrophil immunoglobulin G; Immune response; Interleukin-2; Lymphocyte; Neutrophil.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48425

Plasma fatty acid profile in dairy cows associated with the inclusion of annatto in their diet
Provedor de dados: 2
Autores: Lima, Clarissa Sampaio de Oliveira; Andrade, Albericio Pereira de; Magalhães, André Luiz Rodrigues; Almeida, Omer Cavalcanti de; Guido,  Sebastião Inocêncio; Valença, Roberta de Lima.
The objective of this study was to evaluate the plasma lipid profile and plasma fatty acids of dairy cows receiving diets supplemented with annatto. A total of 32 Holstein cows (550 kg), distributed in a completely randomized design, were allocated to individual stalls and submitted to following treatments: C0 = no annatto; C4 = inclusion of annatto at 4 g kg-1 dry matter (DM) of diet (0.07 g bixin kg-1 diet); C5 = inclusion of annatto at 5 g kg-1 DM of diet (0.09 g bixin kg-1 diet); and C7 = inclusion of annatto at 7 g kg-1 DM of diet (0.12 g bixin kg-1 diet). Blood samples were collected via epigastric vein puncture, centrifuged, and frozen for subsequent analysis. The results indicate that the inclusion (p &amp;gt; 0.05) of annatto does not decrease the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Bixin; Cholesterol; Linoleic acid; Polyunsaturated fatty acids.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47651

Sugarcane with Elephant grass replacing sugarcane with urea in the diet of crossbred dairy cows1
Provedor de dados: 2
Autores: Teixeira, César Roberto Viana; Lana, Rogério de Paula; Gomes, Luiz Henrique dos Santos.
The objective was to evaluate the partial substitution of sugarcane treated with urea by elephant grass in the feeding of crossbred cows in lactation. Eight crossbred cows (Holstein x Gyr) were used, with 474 kg of body weight (standard deviation = 46.15 kg) and 8.15 kg of milk per day. The animals were housed in individual stalls, distributed in two 4 x 4 Latin squares, and the treatments were: sugar cane; sugar cane corrected with 0.5% of urea and ammonium sulfate (9:1); 75% of sugar cane + 25% of elephant grass and 50% of sugarcane + 50% of elephant grass, based on natural matter. In addition to the treatments, it was provided water and mineral salt ad libitum and 3 kg of concentrate supplement (24% crude protein), based on corn meal and soybean meal,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Cattle  digestibility; Feed evaluation; Intake; Milk.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48004

Urea and Tannin in multiple supplements: Ingestive behavior of grazing beef cattle
Provedor de dados: 2
Autores: Araujo, Hellen Patricia de Oliveira; Paula, Nelcino Francisco de; Martello, Hariany Ferreira; Teobaldo, Ronyatta Weich; Pereira, Luana Barros; Mora, Lays Martins; Valentim, Jean Kaique; Antunes, Hellen Cristina Ferreira.
This work was carried out to evaluate the inclusion of urea and tannin in multiple supplements on ingestive behavior of cattle in pasture. The experiment was taken in the Cattle Nutrition pasture of the Experimental Farm of the Federal University of Mato Grosso, in 4 x 4 Latin square design with a factorial arrangement 2 x 2 (with and without urea and with and without tannin). Four Nellore bulls were used, with average weight of 470 kg and an average age of 20 months, randomly divided in: Supplement without urea and without tannin, Supplement without urea and with tannin, supplement with urea and without tannin, and supplement with urea and with tannin. The level of supplementation used was 1% of body weight during the dry period of the year. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Natural additives; Forage; Supplementation; Urea; Tannins.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47607

Economic feasibility of probiotic use in the diet of Nile tilapia, Oreochromis niloticus, during the reproductive period
Provedor de dados: 2
Autores: Dias, Danielle de Carla; Furlaneto, Fernanda de Paiva Badiz; Sussel, Fábio Rosa; Tachibana, Leonardo; Gonçalves, Giovani Sampaio; Ishikawa, Carlos Massatoshi; Natori, Mariene Miyoko; Ranzani-Paiva, Maria José Tavares.
This work examines the economic advantages of probiotic use in the diet of Nile tilapia broodstock during the reproductive period. For this purpose, Bacillus subtilis was applied as a feed additive. The experimental design was completely randomized with three treatment groups: the T0 control (without probiotic), the T1 continuous probiotic intake, and the T2 alternate probiotic intake at a dose of 0.50 g kg-1 of feed (1010 CFU g-1) with four replicates. For the reproduction assay, 118 females and 48 males of Nile tilapia (proportion 4 males:9 females. hapa-1) (weight 527.65 g ± 185.98 g and length 30.16 cm ± 3.57 cm) were distributed into 12 hapas (3.5 × 2.0 × 1.5 m). Reproductive variables (spawning female percentage, egg production, and fry production)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus subtilis; Fish farming; Feed additive; Profitability; Spawning.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47960

Meat quality of suckling goat raised in differents feeding systems
Provedor de dados: 2
Autores: Santos, Norivaldo Lima; Sousa, Wandrick Hauss de; Gomes, Maria das Graças Cunha; Batista, Ana Sancha Malveira; Ramos, João Paulo de Farias; Cartaxo, Felipe Queiroga; Lira, Aianne Batista; Cavalcante, Iara Tamires Rodrigues.
The objective of this work was to evaluate the effect of three breeding systems on the organoleptic quality and the physico-chemical composition of kids goat meat. Were used thirty newborn baby goats of 3.35 kg ± 0.65 kg crossed Parda Alpina x Undefined Race (SPRD) submitted to three breeding systems: Traditional system-TS; Intensive Feeding System without Concentrate- IS and Intensive Feeding System with Concentrate- IS+C. When the goats reached 12 kg, the animals were slaughtered and chemical and physical analyzes were performed in the evaluation of the meat and sensorial. The experimental design was completely randomized, submitted to analysis of variance and compared by the Tukey test and Ryan-Einot-Gabriel-Welsh at 5%. All analyzed variables were also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavour; Lean meat; Kids; Tenderness.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46547

Effect of probiotics and Yucca schidigera extract supplementation on broiler meat quality
Provedor de dados: 2
Autores: Benamirouche, Karima; Baazize-Ammi, Djamila; Hezil, Nadia; Djezzar, Reda; Niar, Abdellatif; Guetarni, Djamel.
The current study investigated the effect of dietary supplementation with probiotics and Yucca schidigera extract on physicochemical parameters, proximate composition, mineral content and fatty acid profile of broiler breast and thigh muscles. In total, 240 one-day old broilers were randomly allocated into two dietary treatments groups: 1) Control (basal diet), 2) experimental (basal diet with two probiotics Pediococcus acidilactici and Saccharomyces cerevisiae and Yucca schidigera extract). The results showed that the pH value was higher in the experimental group than in the control group (p &amp;lt; 0.05). However, drip, cook and thaw losses were not influenced by dietary treatment (p &amp;gt; 0.05). A significant increase in protein, Fe, Zn, Na, P and a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breast; Meat quality; Pediococcus acidilactici; Saccharomyces cerevisiae; Thigh.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48066

The effect of feed restriction on the fat profile of Santa Inês lamb meat
Provedor de dados: 2
Autores: Madruga, Marta Suely; Kênia Alves Bezerra, Taliana; Conceição Dantas Guerra, Ingrid; Batista, Ana Sancha Malveira; Marcos de Azevedo Silva, Aderbal; Fernandes, Rafaella de Paula Paseto.
Consumers today are increasingly more demanding regarding their food, seeking healthier and better quality products, and in this context animal nutrition plays a key role. The meat composition can be altered by animal feed itself, being that lipid profile may directly contribute to consumer health, reducing the predisposition of developing cardiovascular diseases, main cause of mortality in the world. Thus, the aim of this study was to assess the effect of dietary feed restriction in Santa Inês lambs on their intramuscular, intermuscular, and subcutaneous fat profile, fat profile of the longissimus thoracis et lumborum (LTL) muscle, and the total meat lipids and cholesterol. Three groups of lambs were subjected to diets: without restriction (WR), and 30...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian Northeast cholesterol diet fatty acids Longissimus thoracis et lumborum nutrition Brazilian Northeast; Cholesterol; Diet; Fatty acids; Longissimus thoracis et lumborum; Nutrition.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48229

Exploratory data inference for detecting mastitis in dairy cattle
Provedor de dados: 2
Autores: Silva, Rodes Angelo Batista da; Pandorfi, Héliton; Almeida, Gledson Luiz Pontes de; Silva, Marcos Vinícius da.
The aim of this study was to employ the principal component technique to physiological data and environmental thermohygrometric variables correlated with detection of clinical and subclinical mastitis in dairy cattle. A total of 24 lactating Girolando cows with different clinical conditions were selected (healthy, and with clinical or subclinical mastitis). The following physiological variables were recorded: udder surface temperature, ST (°C); eyeball temperature, ET (°C); rectum temperature, RT (°C); respiratory frequency, RF (mov. min-1). Thermohygrometric variables included air temperature, AirT (°C), and relative humidity, RU (%). ST was determined by means of thermal images, with four images per animal, on these quarters: front left side (FL), front...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Multivariate analysis; Images; Lactating cows.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46394

Effect of flaxseed (Linum usitatissimum) and soybean (Glycine max) oils in Egyptian lactating buffalo and cow diets on the milk and soft cheese quality
Provedor de dados: 2
Autores: Hassan,  Laila Khaled; Shazly, Ahmed Behdal; Kholif,  Abd El-Kader Mahmoud; Sayed, Ahmed Farouk; El-Aziz, Mahmoud Abd.
Produce and compare soft cheese with potential benefits of human health from Egyptian buffalo's and cow's milk was studied. Eight Egyptian lactating buffalos and cows were fed a total mixed ration supplemented with either 0% oil (CD), 2% flaxseed oil (DFO), 2% soybean oil (DSO), or 2% of their mixture (1:1, DFSO) according to a double 4 x 4 Latin Square design. Milk yield was similar between buffalo's diets but was higher in cows fed a DFO, DSO or DFSO resulting in 11.15, 8.21% or 8.97% increases compared with the control diet, respectively. Milk composition was not significantly affected in both buffalos and cows fed diets. The DFO, DSO or DFSO displayed decreased short-chain fatty acids, especially DSO and DFSO (3.73 and 3.33%, respectively) when...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flaxseed oil; Soybean oil; Milk yield; Fatty acids profile; Antioxidant activity  soft cheese properties.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47200

Evaluation of non-carcass components of goat grazing in Caatinga rangeland supplemented with spineless cactus and native plants
Provedor de dados: 2
Autores: Silva, Dulciene Karla de Andrade; Cordeiro, Fábia Simone Bezerra; Cardoso, Daniel Barros; Magalhães, André Luiz Rodrigues; Melo, Airon Aparecido Silva de; Pereira, Kedes Paulo.
The objective of this study was to evaluate non-carcass components of goats submitted to grazing in the Caatinga rangeland and supplemented with spineless cactus (Nopalea cochelinifera Salm Dick), Jitirana hay (Merremia aegyptia L. Urban) and Mororó hay (Bauhinia cheilanta Bong Stend). Thirty male goats (castrated), with no defined breed, with an initial mean body weight of 19 ± 0.35 kg and approximately 90 days of age were used. The treatments consisted of grazing without supplementation (GWS), grazing + Jitirana hay (GJ); grazing + Jitirana hay + spineless cactus (GJSC); grazing + Mororó hay (GM); grazing + Mororó hay + spineless cactus (GMSC). The means of the variables were tested by Tukey's test at 5% probability. The goats fed GWS, GJSC, GM and GMSC...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semi-arid supplementation herd organs semi-arid; Supplementation; Herd; Organs.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48225

Physicochemical characterization of by-products from beef cattle slaughter and economic feasibility of commercialization
Provedor de dados: 2
Autores: Maysonnave, Greicy Sofia; Mello, Renius de Oliveira; Vaz, Fabiano Nunes; Ávila, Mozer Manetti de; Pascoal, Leonir Luiz; Rodrigues, Ana Clara Trindade.
The aim was to evaluate the proximate food composition, cholesterol content, coloring and economic aspects of the main nutrients present in by-products from the slaughter of cattle. The samples were collected from 14 organs, with four repetitions each, of which we conducted the analyses of moisture, crude protein, mineral matter, cholesterol and fat content. The color was measured through the coordinates L*, a*, b*. The differences between the groups of red and white viscera were evaluated by contrasts analysis. Subsequently, the data were subjected to multivariate analysis of variance, which was complemented by the principal component technique. In the analysis of contrast between red and white viscera, the results showed that the components with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Income; Meat chain; Productive chain; Slaughterhouses.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46545

Low-purity crude glycerin as a nutrient substitute for corn: the effect on yields of goat organs and viscera
Provedor de dados: 2
Autores: Gomes, Rayane Nunes; Paula, Talita Almeida de; Carvalho, Francisco Fernando Ramos de; Cordeiro, Eduardo Henrique de Araújo; Nascimento, Hugo Fernando Araújo do; Mendes, Giorgio Oliveira; Oliveira, Ana Barros de; Véras, Antonia Sherlânea Chaves.
This study was conducted to evaluate the effects of the inclusion of low-purity crude glycerin (CG, 63.1% of glycerol) in the diets of feedlot-finished goats on the weights and yields of the non-carcass components, with are frequently used in regionals dishes (buchada and panelada). Forty castrated male goats with the initial mean body weight of 19.70 ± 2.30 kg were used. Experimental treatments consisted of inclusion of CG at levels of 0, 6, 12, and 18%, based on dry matter. The weights of the lungs, spleen, total organs (TWO), and TWO yield, as a function of the slaughter body weight, decreased linearly. It was shown that the rumen portion of the weight showed a quadratic effect, at the level of 10.71% of CG, with a minimum point of 0.37 kg. Similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Buchada; Co-product; Glycerol; Panelada buchada; Co-product; Glycerol; Panelada.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48650

Effect of in-ovo feeding of iron nanoparticles and methionine hydroxy analogue on broilers chickens small intestinal characteristics
Provedor de dados: 2
Autores: Laledashti, Masoumeh Abbasinezhad; Saki, Ali Asghar; Rafati, Amir Abbas; Abdolmaleki, Mansoureh.
The experiment was conducted with 644 Ross fertilized egg by 7 treatments 4 replicates and 23 eggs in each. Seven treatments included two control with and without injection, iron sulfate, iron sulfate nanoparticles, Alimet, Alimet + iron sulfate, Alimet + iron sulfate nanoparticles. After hatching 2 mg iron nanoparticles were applied as new treatment. The highest increased in the intestinal relative weight (p &amp;lt; 0.05) was observed by iron+Alimet in late feeding at day old of age. Also similar trend was found in cecum and duodenum length by iron control 2 and late feeding (18 hours’ after hatching). The highest cecum length was found among all treatments by in ovo injection of iron nanoparticles in early feeding at 21 days of age (p &amp;lt; 0.05)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler chicken; In-ovo injection; Iron nanoparticles; Methionine; Small intestine.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46903

Chemical control of signalgrass for establishing Tanzania-grass
Provedor de dados: 2
Autores: Rodrigues, Barbara Martins; Santos, Marcia Vitoria; Paschoaloto, Josimari Regina; Braz, Thiago Gomes dos Santos; Santos, José Barbosa; Martins, Cesar Augusto; Costa, João Pedro Rodrigues; Borges, Claudia Eduarda.
Herbicides have been used to control Brachiaria grass in pastures established or in formation given their practicality, however their efficiency is questionable due to the lack of specific graminicides for different forage species. Therefore, the goal of this study was to evaluate the efficiency of glyphosate and fluazifop-p-butyl in the control of Brachiaria decumbens (signalgrass) and the intoxication levels of Panicum maximum cv. Tanzania (Tanzania quinea grass) in pasture establishment. The experiments were designed in randomized blocks, in a 2 × 5 × 4 factorial arrangement of two herbicides (fluazifop-p-butyl and glyphosate), five doses equivalent to the commercial dosage of each herbicide (0.25; 0.50; 1.00; 1.50; 200), and four evaluation times after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Signalgrass; Tanzania-grass; ACCase enzyme; Fluazifop-p-butyl; Glyphosate. signalgrass; Tanzania-grass; ACCase enzyme; Fluazifop-p-butyl; Glyphosate.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48408

Colorimetric method as alternative to chromium (III) quantification in cattle feces
Provedor de dados: 2
Autores: Torres Ospina, Alexandra; Zapata, Julian Andrés; Gil Gonzalez, Jesus Humberto; Giraldo, Luis; Valencia, Diana Marcela.
&amp;nbsp;One of the main factors to establish productivity of grazing cattle is the estimation of forage intake. For this, the most widely used technique is based on the estimation of fecal output using chromium dioxide as external marker. However, quantification can be expensive and sometimes not precise due to the methodology used for this purpose. Therefore, the aim of this study was to validate the colorimetric method for chromium quantification and to implement it in the estimation of fecal output in grazing cattle. The temperature, the digestion time and the wavelength for the measurement were evaluated. The method was validated for selectivity, linearity, detection and quantification limits, precision, accuracy, and stability. Results showed that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spectrophotometry; Fecal output; External marker; Chromium dioxide; Validation. spectrophotometry; Fecal output; External marker; Chromium dioxide; Validation.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48096

Açaí meal on diet digestibility for commercial laying hens
Provedor de dados: 2
Autores: Rufino, João Paulo Ferreira; Cruz, Frank George Guimarães; Dias, Fábio Jacobs; Brasil, Ronner Joaquim Mendonça; Silva, Ana Rebeca Pires da; Melo, Paloma Leandra Garcia.
This study aimed to evaluate açaí meal in diets for commercial laying hens on apparent nutrient digestibility and apparent metabolizable energy. A total of 72 Hissex White laying hens (52-wks-old) were distributed in a completely randomized design, where treatments consisted of a control diet and an experimental diet (25% açaí meal) with six replicates of six birds each. Data collected were subjected to polynomial regression at 5%. Differences (p &amp;lt; 0.05) were detected in digestibility of all evaluated nutrients. Hens fed diets with 25% açaí meal presented worse (p &amp;lt; 0.05) metabolization and use of energy content. It can be concluded that hens fed diets containing açaí meal presented better use of crude protein, non-fiber carbohydrates and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative food; Nutritional use; Metabolizable energy; Agroindustrial waste. alternative food; Nutritional use; Metabolizable energy; Agroindustrial waste.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46926

Protein, energetic, enzymatic and mineral profile of Nellore cows during the pregnancy, parturition and postpartum
Provedor de dados: 2
Autores: Oliveira, Wagner Dias Coelho de; Silva, Tairon Pannunzio Dias e; Bezerra, Leílson  Rocha; Araújo, Marcos Jácome de; Edvan, Ricardo Loiola; Lopes Oliveira, Ronaldo.
The aim of this study was to evaluate the protein energetic, enzymatic and mineral profile of Nellore cows during the pregnancy, parturition and postpartum. Fifteen multiparous cows with 4 ± 1 years of age and live weight of 400 ± 50 kg were used at different stages (non-pregnant, in the initial, middle and late pregnancy, at birth, one day postpartum, 30 and 60 days postpartum). Blood collections were performed every 30 days and assayed for the following blood biomarkers: Protein (total proteins, albumin, urea and creatinine), energetic (cholesterol, triglycerides, glucose and beta hydroxybutyrate), mineral (calcium, phosphorus, magnesium) and enzymatic (alkaline phosphatase and aspartate aminotransferase). Calcium had the lowest concentrations (p...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemistry; Blood; Ketone bodies; Metabolites; Physiology. biochemistry; Blood; Ketone bodies; Metabolites; Physiology.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/49022

Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experiment
Provedor de dados: 3
Autores: Venâncio, Henrique; Bianchi, Renata Alexandre; Lobato, Thaís Oliveira Santos; Sampaio, Marcus Vinícius; Santos, Jean Carlos.
The establishment of invasive plants negatively affects natural environments. Invasive herbivores that attack weeds can be used as a form of biological control, but natural enemies of herbivores must be associated with this interaction to prevent the invasive phytophagous from become a local pest. We performed a greenhouse experiment to evaluate how the cotton aphid, Aphis gossypii, a ok and invasive herbivore, affects the performance of the weed Tithonia diversifolia, the Mexican sunflower. We also examined the relationship between the aphid and local natural enemies. Seedlings of T. diversifolia were divided in two groups: one infested by the aphid and another not infested. After 22 days, we assessed the relationship between aphid abundance and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tithonia diversifolia; Cotton aphid; Aphidius platensis; Coccinelidae; Biological control.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47120

Pollen resources partitioning of stingless bees (Hymenoptera: Apidae) from the southern Atlantic forest
Provedor de dados: 3
Autores: Rodrigues, Carina da Silva; Ferasso, Debora Cristina; Mossi, Altemir José; Coelho, Geraldo Ceni.
Meliponinae eusocial bees are among the most important pollinators in the Neotropics and their beekeeping has been growing as both recreational and economic activity. Information on the pollen preferences and niche overlap among species coexisting in the same location is still scarce. This study focused on the use of pollen resources by three native species of Meliponinae in the Atlantic Forest, Melipona quadrifasciata quadrifasciata (Lepeletier 1836), Scaptotrigona depilis (Moure 1942), and Tetragonisca angustula (Latreille 1811), at two different sites. The use of pollen resources was evaluated from reserves inside hives collected monthly between February 2015 and January 2016. It was also estimated the Mean Minimal Distance (Dm) traveled by the bees to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Niche overlap meliponiculture pollination Apidae niche overlap; Pollination; Meliponiculture; Apidae.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/48714

Study of comparative proteome between normal and inverted karyotypes of human mesenchymal stem cells
Provedor de dados: 3
Autores: de Souza Santos, John Lenon; Câmara, Alice Barros; Meira, Isabella Tanus Job e; Oliveira, Jonas  Ivan Nobre.
&amp;nbsp;Multipotent mesenchymal stem cells have been expanded in vitro for cellular therapy in numerous clinical settings without standardized culture conditions or quality-control schemes. The in vitro expansion is necessary to obtain sufficient cells for clinical applications. However, the expansion may induce genetic and functional abnormalities which may affect the safety and functionality of MSC, especially the chromosomal stability. This study aimed to investigate the protein profile of umbilical cord-derived MSC with normal and inverted karyotypes after expansion in the laboratory. Mass spectrometry analysis was performed and the Bradford method, Scaffold software, String and Cytoscape databases were employed to measure and characterize the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic instability; Protein profile; Umbilical cord; Interaction network. genetic instability; Protein profile; Umbilical cord; Interaction network.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/50260

Structural and compositional shifts in Cerrado fragments in up to 11 years monitoring
Provedor de dados: 3
Autores: Cordeiro, Natielle Gomes; Pereira, Kelly Marianne Guimarães; Terra, Marcela de Castro Nunes Santos; Mello, José Márcio de.
The Cerrado has a wide diversity of fauna and flora, and the knowledge of its horizontal structure, in different time intervals allows the prediction of its structural and floristic characteristics. The aim of this study was to evaluate the changes in structure and composition of tree community in three fragments of Cerrado with low anthropization, in an interval of 11 years at Minas Gerais state. Rectangular plots of fixed size were sampled, measuring stem diameter and height of all living arboreal individuals with diameter at 1.30 meters above ground (DBH) ≥ 5 cm. The tree vegetation dynamics study of the areas was performed, as well as the floristic analysis and the diametric structure. Considering all fragments and years of measurement, the recruitment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tree community dynamics; Diversity; Ingrowth; Recruitment; Similarity; Vegetation. tree community dynamics; Diversity; Ingrowth; Recruitment; Similarity; Vegetation.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/48357

Fragment shape and size, landscape permeability and fragmentation level as predictors of primate occupancy in a region of Brazilian Cerrado
Provedor de dados: 3
Autores: Grande, Thallita Oliveira; Alencar, Raony Macedo; Ribeiro, Paulo Pinheiro; Melo, Fabiano Rodrigues.
Human activities result in the formation of a mosaic of forest patches within a non-habitat matrix. The response of the local biodiversity to changes in land-use may occur at different scales. It is important to evaluate the effects of the attributes of both the patches and the surrounding landscape on the occupancy of forest patches by animal populations. Here, we assessed the predictive potential of local (basal area, tree density), patch (size, shape) and landscape scale (total area of forest, number of patches, matrix permeability, patch proximity) variables on the occupancy of forest patches by the syntopic primates Alouatta caraya, Sapajus libidinosus and Callithrix penicillata in the city of Goiânia in the Cerrado region of central Brazil. We used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Primate syntopy patch occupancy matrix forest fragmentation playback primate syntopy; Patch occupancy; Matrix; Forest fragmentation; Playback.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/48339

Effect of shading and nitrogen fertilization on nitrogen metabolism, essential oil content and antimicrobial activity of Achillea millefolium
Provedor de dados: 3
Autores: Lima, Milene Conceição; da-Silva, Cristiane Jovelina; Mariot, Marcio Paim; Freitag, Rogério Antônio; Serpa, Rosana; Ribeiro, Gladis Aver; Amarante, Luciano do.
The Achillea millefolium L. is a perennial herb with important antibacterial, antifungal, anti-inflammatory, antitumoral, and antioxidant properties. This research aimed to investigate the effect of shading (75%; black net) and nitrogen fertilization (0, 75 and 150 kg urea ha-1) on the nitrogen metabolism, essential oil yield and antimicrobial activity of A. millefolium at vegetative- and reproductive-stage. The evaluated parameters varied depending on the organ and the phenological stage of the plant considered. Overall, our findings indicated that shading decreased nitrogen assimilation. Decreased activities of nitrate reductase and glutamine synthetase were observed on shaded plants during reproductive and vegetative stages, respectively. Nitrate and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Light reduction; Medicinal plants; Minimum inhibitory concentration; Nitrogen assimilation; Yarrow.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46412

Traditional knowledge and perception of birds in the Parnaíba Delta environmental protection area, Northeast Brazil
Provedor de dados: 3
Autores: Santos, Francisco das Chagas Vieira; Souto, Wedson Medeiros Silva; Ribeiro, Arthur Serejo Neves; Lucena, Reinaldo Farias Paiva de; Guzzi, Anderson.
Local inhabitants retain a vast knowledge about the bird richness surrounding them, as well as many of their ethological and ecological aspects, and can identify the importance of those birds to the maintenance of ecosystem integrity. The present study sought to document the traditional knowledge retained by members of the Labino community concerning the avifauna of the Delta do Rio Parnaíba Environmental Protection Area (APA), Piauí State, Brazil. We interviewed 76 male (51% of the sample) and 74 female (49%) residents. The interviewees indicated the occurrence of 97 bird species belonging to 21 orders and 40 families. Men could identify more bird species than women. Older individuals recognize more bird species than younger members of the community....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avifauna; Hunting; Conservation; Labino community.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47722

Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae)
Provedor de dados: 3
Autores: Valentim-Neto, Pedro Alexandre; Gesteira, Tereza Cristina Vasconcelos.
The crab Ucides cordatus is an important feature of mangroves in the North and Northeast of Brazil. In 2002 a large mortality was reported on this species in the Jaguaribe River Estuary. In order to investigate the possible causes specimens were collected monthly between May 2002 and December 2003 at five sites: Fortim (E1), Fortim (E2), Cumbe (E3) Aracati (E4) and Guajiru (E5). The mangrove structure and environmental parameters (salinity, pH, temperature and DO) were also evaluated. Water was collected for suspended solids analysis, BOD and nutrient levels. Salinity decreased in the rainy season, with no significant variation of pH and temperature. Dissolved oxygen levels had a mean of 5.7 mg L-1. Suspended solids increased at site E4, with BOD varying...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biometric parameters; Crustacea; Histology; Bioassay.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47430

Influence of environment on the leaf morpho-anatomy and histochemical of the ayahuasca leaf: Populations cultivated in extra-Amazonian regions
Provedor de dados: 3
Autores: Miranda, Ordilena Ferreira de; de Souza, Saulo Eduardo Xavier Franco; Milan, Rodrigo José; Bueno, Aline Borges; Almeida, Marcilio de.
Psychotria viridis Ruiz &amp;amp; Pav. (Rubiaceae) occurs naturally throughout the Amazon and it is traditionally used by indigenous communities, being incorporated into religious use in urban contexts over the last few decades. It is known and cultivated in many regions of South America for possessing valuable bioactive alkaloids. In this paper, we described P. viridis leaf morphology, anatomy and histochemistry from three populations cultivated in the southeastern Brazil, in order to identify possible adaptations to local environment and management. All plants presented terminal stipules and basic morpho-anatomical patterns of leaves, consistent with most species of the genus, as heterogeneous dorsiventral mesophyll, uniseriate epidermis, presents large...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Characterization; Alkaloid; Trichomes; Glandular duct; Domatia. characterization; Alkaloid; Trichomes; Secretory duct; Domatia.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/50369

Mapping the habitat suitability of Andira humilis Mart. ex Benth. (Fabaceae) as a means to detect its associated galling species in Brazil
Provedor de dados: 3
Autores: Lima, Valdeir Pereira; Calado, Daniéla Cristina.
Host plant species have very specific interconnection with galling species. Here, we estimate the potential distribution of the host plant species Andira humilis Mart. ex Benth. (Fabaceae) to consequently locate the potential distribution ranges of its galling species Lopesia andirae Garcia, Lima, Calado, and Guimarães (2017) based on ecological requirements. The ecological niche model was built using Maxent v.3.4.1k, an algorithm that estimates species’ distributions. We found suitable habitats for L. andirae encompassing areas of the Cerrado, Caatinga and Atlantic Forest. Annual mean temperature (70.2%) and temperature annual range (13.9%) were the most critical factors shaping A. humilis and necessarily L. andirae. Our results can guide taxonomists and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Cecidomyiidae; Computational biology; Gall-inducing insects; Species distribution modeling. Biodiversity Cecidomyiidae Computational biology Gall-inducing insects Species distribution modeling.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/48809

Germination of Mansonia altissima (A. Chev.) A. Chev. var. altissima: an endangered valuable timber species in Africa
Provedor de dados: 3
Autores: Oseni, Ojo Michael; Nailwal, Tapan Kumar; Pande, Veena.
The in vitro seed germination which results in the production of disease-free seedlings and greenhouse germination of the seeds of Mansonia altissima was investigated in order to establish a better way of germination of the timber species. Five levels of GA3 treatment were used in in vitro germination with three replicate and two seeds were inoculated in each of the jam bottle. Whereas, in greenhouse germination, five levels of different treatments were used, replicated three times and each Petri plate contained 15 seeds. The experiment was repeated twice and the data from each experiment was put together and used for the statistical analysis. The results showed that seeds germination occurred eight days after inoculation in in vitro but in the case of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MS médium; GA3; In vitro; Growth parameters; Greenhouse; Seed.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47448

Genetic diversity of 16S rRNA and mcrA genes from methanogenic archaeas
Provedor de dados: 3
Autores: Xavier, Keyla Vitoria Marques; Souza, Eden Silva e; Santos, Erick de Aquino; Diniz, Michely Correia.
Methanogenic archaeas are found in aquatic and terrestrial environments and are fundamental in the conversion of organic matter into methane, a gas that has a potential use as renewable source of energy, which is also considered as one of the main agents of the greenhouse effect. The vast majority of microbial genomes can be identified by a conservative molecular marker, the 16S ribosomal gene. However, the mcrA gene have been using in studies of methanogenic archaea diversity as an alternative marker, highly conserved and present only in methanogens. This gene allows the expression of the enzyme Methyl-coenzyme M reductase, the main agent in converting by-products of anaerobic digestion into methane. In this context, we aimed to study the genetic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heterozygosity; Microbiomes; Methane; Anaerobic; Arlerquin; Databases heterozygosity; Microbiomes; Methane; Anaerobic; Arlerquin; Databases.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/49877

Man-made soil drainage alters the vegetation structure and woody species distribution in campo de murundus
Provedor de dados: 3
Autores: Guimarães Guilherme, Frederico Augusto; Soardi Maricato, Hortência; Marimon, Beatriz Schwantes; Pereira, Firmino Cardoso; Souza, Luzia Francisca de; Coelho, Christiano Peres; Ferreira, Wendy Carniello; Ferreira Júnior, Angélica; Pereira, Kaila de Assis Ressel.
Campos de murundus work as recharge zones and are important for the maintenance of water resources in Brazilian Cerrado. However, with the expansion of the agricultural frontier, this ecosystem may disappear or suffer high anthropogenic disturbances. The aim of the study was to evaluate the structure and distribution of woody species, after the implantation of artificial drainage channels in campo de murundus, in plots near and distant of the drains in the soil. We sampled woody individuals with ≥ 3 cm diameter at the base, and established 20 permanent plots of 20×50 m, 10 of which were between 0-20 m of the drains (edge) and 10 between 150-200 m distant from the drains (interior), totaling two hectares of survey. We recorded 47 species with total density...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado floodplain; Drainage channels or artificial grooves in the soil; Encroachment; Human disturbance; Wetlands. cerrado floodplain; Drainage channels or artificial grooves in the soil; Encroachment; Human disturbance; Wetlands.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/49894

Venom of the giant ant Dinoponera quadriceps attenuates inflammatory pain in mouse cutaneous wound healing model
Provedor de dados: 3
Autores: Assreuy, Ana Maria Sampaio; Adjafre, Beatriz Lima; Sousa, Évilla Rayanne Oliveira; Alves, Ana Paula Negreiros Nunes; Pires, Alana de Freitas; Quinet, Yves; Mota, Mário Rogério Lima.
Arthropod venoms are potential sources of bioactive substances, providing tools for the validation of popular use and new drugs design. Ants belonging to the genus Dinoponera are used in the folk medicine to treat inflammatory conditions. It was previously demonstrated that the venom of the giant ant Dinoponera quadriceps (DqV), containing a mixture of polypeptides, elicit antinociceptive effect in mice models of chemical, mechanical and thermal nociception. The aim of this study was to evaluate DqV antiinflammatory and antihypernociceptive effects in a mice model of traumatic cutaneous wound. Colonies of D. quadriceps were collected in the ‘‘Serra de Maranguape’’ (State of Ceará, northeastern Brazil), a small mountain range located on the coastal zone,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DqV; Hypernociception; Leukocyte infiltrate; Scar.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47680

Cytotoxic and genotoxic potential of industrialized powdered milk for infants and young children
Provedor de dados: 3
Autores: Silva, Geysa Janne Sousa; Santos, Fabelina Karollyne Silva dos; Marques, Márcia Maria Mendes; Peron, Ana Paula.
This study aimed to evaluate the cytotoxicity and genotoxicity and determine the LC50 concentration of powdered infant formulas widely marketed in South American countries. To this, milk samples, called as A, B, C and D, were analyzed in root meristem cells of Allium cepa, at concentrations of 0.075; 0.15 and 0.30 g mL-1, for 24 and 48 hours; and through cell viability in culture of normal line cells, via MTT test, for 24 hours, in the concentrations 0.018; 0.0375; 0.075 and 0.15 g mL-1. In A. cepa, all dairy products in the three concentrations caused significant inhibition of cell division in the meristems within the first 24 hours of exposure. In the in vitro evaluation, all milk formulas at 0.15 g mL-1, as well as milk A at a concentration of 0.037 g...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infant formula; Cell division; Meristematic tissue; Cell viability; LC50.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46856

Novel system for demand-oriented biogas production from sugar beet silage effluent
Provedor de dados: 111
Autores: Kumanowska, Elzbieta.
In recent years, the concept of flexible electricity production from renewable energy sources has gained popularity in the field of renewable energy supply. This study investigated a new system for flexible biogas production in praxis scale biogas plants involving new sugar beet storage processes aiming on the use of produced sugar beet silage effluent. Both processes showed successful ensiling with moderate losses compared to conventional sugar beet storage processes. A clear advantage was found in the use of washed and chopped sugar beet for silage effluent production. Thanks to the high COD-content and high digestibility, the produced silage effluent was applicable for point feeding. The system’s response, observed as an increase in gas production, was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anaerobic digestion; Biogas production; Full-scale; Demand-oriented; Sugar beet silage effluent; Point feeding.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5471

Influence of Shape, Pre-treatment and Drying Air Temperatureon Quality of Dried Aonla
Provedor de dados: 111
Autores: Alam, Md. Shafiq; Singh, Amarjit; Chavan, Prasad.
Experiments were conducted to assess the effect of aonla shape, pre-treatment and drying air temperature on quality attributes of dried product. The aonla fruit was subjected to mechanical treatment to form three shapes i.e. spherical (whole pricked), cylindrical (15x35mm) and sheet (2 mm thickness) and were exposed to different pre-treatments i.e. untreated (UT), water blanching (WB), steam blanching (SB), blanching and sulphiting (B+S), sugar osmosis and salt osmosis prior to convective drying at temperature of 50, 60 and 70°C. The dried aonla (nearly 10% w.b) were analyzed for different quality attributes such as re-constitutional properties, vitamin C, colour and overall acceptability. The data indicated that re-constitutional properties, colour (L, a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aonla; Convective drying; Pre-treatment; Quality parameters.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3932

STORING, DISTRIBUTION AND BLENDING OF BIODIESEL
Provedor de dados: 111
Autores: Micic, Radoslav.
Due to nature of biodiesel fuel (B100) as well as biodiesel and fossil diesel oil blends these fuels demands specific conditions of storage, handling, transportation and distribution. Although it is necessary to pay attention to each of the elements in the distribution chain, the most critical operations are related to storing. Tanks for biodiesel storinghave a dominant influence on the maintenance of stable quality, as may occur, issues that directly affect the degradation in quality and problems during distribution, blending and use. In the designing process of the tank space and the installations must be taken into account all specificities of biodiesel also that materials are resistant to the influence of biodiesel and does not affect it contamination....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Transesterification of fatty acid methyl esters (FAME); Aging; Storing; Blending.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5583

Use of Water Hyacinth (Eichhornia crassipes) to Treat Biogas Effluent of A Tapioca Industry Wastewater Treatment System
Provedor de dados: 111
Autores: Haryanto, Agus; Triyono, Sugeng; Siska, Posmaria Mei.
This research aims to evaluate performance of a water hyacinth (Eichornia crassipes (Mart) Solms) pond used to treat biogas effluent of a tapioca industry wastewater treatment system.  The water hyacinth pond which treats biogas effluent has been monitored for about two months.  Wastewater samples were taken from influent and effluent of the water hyacinth pond.  Parameters to be observed included wastewater quality parameters (pH, temperature, turbidity, BOD5, ammonia, solids, evapotranspiration, discharge, and hydraulic retention time) and water hyacinth parameters (growth, population density, moisture, ash, nutrient contents).  The results showed that water hyacinth improved some parameters of the biogas effluent to some extent.  Within HRT of 53 days,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wastewater; Biogas; Environmental burden; Organic matter; Indonesia.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5867

Energy performance of sugarcane potential ethanol production under different management systems
Provedor de dados: 111
Autores: Wei, Marcelo Chan Fu; Romanelli, Thiago Libório; Molin, José Paulo.
Crop rotation with leguminous species in sugarcane cultivation is increasing in the southeastern regions of Brazil. Studies on sugarcane ethanol production rely basically at the economic and sustainable points of view overlooking the energy analysis. This study aimed to evaluate the sugarcane ethanol yield under no-tillage and conventional systems with different green manure treatments using a published dataset at the energy point of view. Analysis of energy efficiency was carried out using the indicators: energy balance (EB), energy return over investment (EROI) and Energy Intensity (EI). Energy balance ranged from 129.78 GJ ha-1 to 216.92 GJ ha-1, with no-tillage system presenting the highest values of EB. EROI presented the highest values (334.19,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conventional system; Energy balance; Energy return over investment; Ethanol; No-tillage system.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5973

Development of an imaging system for spatially real-time measurement of drying parameters in industrial drying units
Provedor de dados: 111
Autores: amjad, waseem; Munir, Anjum; Sturm, Barbara.
Lack of accurate information for the drying kinetics is the main barrier to optimize drying processes effectively. Online monitoring of drying data is not common due to practical issues involved in set-up application. In this study an imaging system was developed for large drying units to investigate the quality changes (color kinetics and shrinkage) combine with weight loss of food product spatially and non-destructively during convective drying. The imaging setup was used in a diagonal-airflow batch dryer and shifted along the dryer length to take data (food images and weight loss) at different positions using potato slices (5mm thick, 60°C) as drying material. First order model fitted well to value of ∆L* and ∆b* while ∆a* and ∆E fitted in zero order...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Image processing; Real time data; Drying.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5985

Effect of rotary blade design modification on residue retention into conservation agriculture practice
Provedor de dados: 111
Autores: Mahmud, Md Talash; Rahman, Md Towfiqur; Hossain, Md Mosharraf; Rabbani, Muhammad Ashik-E-.
Conservation Agriculture (CA) has been a promising technique for better crop production. Manual seeding with conventional tillage practice is laborious and time consuming. However, Strip tillage (ST) method incorporating seeding machines minimizes human drudgery and optimizes the crop yield. Many problems associated with ST have been rectified e.g. tiny furrow backfill, inaccuracy of seed and fertilizer placement, leading to poor germination and curtailed outcomes. This article focused on the effects of residue retention for the rotary blades design on a versatile multi-crop planter (VMP). Four types of rotary blades of VMP differed by 15o increment of tip angles were designed, fabricated, and experimented with a constant speed 350 RPM for ST operation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Strip tillage; Rotary blade; Tip angle; Residue height.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6181

Effectiveness of a solar grain dryer for drying paddy seed in Bangladesh
Provedor de dados: 111
Autores: Roy, Dipika; Saha, Chayan Kumer; Alam, Md. Monjurul; Alam, Md. Ashraful; Sarker, Tumpa Rani.
Proper and timely drying is needed for producing quality paddy seed. Open sun drying is often produced seed with foreign materials.  Solar dryer produced by science for society (S4S), India might be suitable for country like Bangladesh. Therefore, an attempt was taken to evaluate S4S seed dryer at the Workshop, Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh. In this experiment, the spatial and temporal distribution of temperature and moisture in S4S solar grain dryer was investigated and the seed quality was also evaluated. The dryer performance was evaluated with six trials in Boro season from May 10 to June 6, 2017 and with three trials in Aman season from November 7 to 11, 2017. Paddy seed samples were also dried...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solar drying; Temperature; Moisture content; Drying loss; Germination.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5957

PRODUCTION OF COMPOSITE SOLID FUEL USING ORANGE PEELS AND CORN COBS FOR ENERGY SUPPLY
Provedor de dados: 111
Autores: Aliyu, Mohammed; Mohammed, Ibrahim Shaba; Usman, Mohammed; Dauda, Solomon Musa; Igbetua, Igbetua Joshua.
Abstract: This study presents investigation of orange peels and corn cobs being some of the numerous biomass wastes in Nigeria to determine their characteristics through briquetting technology. This is part of the efforts geared towards production of fuel product from agro-waste biomass and a more environmentally friendly fuel that can be used as an alternative fuel to the commonly used fossil fuel that has brought about global warming threatening our environment and the earth. This effort is also to reduce our over-dependence on the use of fuel-wood so as to reduce its consequences on climate change and other consequences on the environment. In the process, orange peels and corn cobs were collected from within the environment of Chanchaga and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy; Biomass; Proximate Analysis; Ultimate Analysis; Ignition time; Water boiling test.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5640

DEVELOPMENT ZERO RUNOFF MODEL IN PALM OIL PLANTATION FOR WATER RESOURCES CONSERVATION  BY USING RECHARGE WELLS
Provedor de dados: 111
Autores: Ekaputra, Eri Gas; Irsyad, Fadli; Yanti, Delvi.
Soil water conservation with how water infiltration through recharge wells is very important considering the land use changes in the earth's surface as a consequence of the growth in population and economy, society, decrease the rate of erosion runoff will decline. If the surface flow decreased, soils eroded and drift would be reduced. The impact of rainwater runoff and erosion too small to be small. This research was conducted in June to August 2016 in West Pasaman PTPN VI. This study aims to determine the number of recharge wells, dimensions, distribution of recharge wells and reduce the volume of runoff that occurs. This research was conducted through the following steps: (1) Analysis of Intensity Rain, (2) Determination of the coefficient of runoff,...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5913

Spatial Distribution of Rainfall and Reference Evapotranspiration in Southeast Nigeria
Provedor de dados: 111
Autores: Okechukwu, Michael Emeka.
 Spatial trends of rainfall and reference evapotranspiration (ETo) are crucial for sustainable water resources management. Rainfall and ETo trends were evaluated and estimated using FAO Penman-Monteith model and their spatial distributions were mapped across Southeast Nigeria. Two spatial interpolation techniques, Inverse Distance Weighting (IDW) and Kriging in ArcGIS were employed for monthly, annual and seasonal rainfall and ETo. Results showed that rainfall increased gradually from North to South while ETo increased from South to North of the study area. ETo was found to be higher during dry seasons as the average rise in temperature within the period of study stood at 1.1%. There was a positive correlation of the predicted results obtained by the IDW...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural and Bioresources Engineering; Soil and Water Engineering Rainfall  Reference evapotranspiration  Inverse Distance Weighting  Kriging  Spatial Interpolation.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5478

Sidan Reservoir Operation Model for System Analysis of Ayung River Basin with RIBASIM
Provedor de dados: 111
Autores: Yekti, Mawiti Infantri; Dwikarna Putra, I Putu; Norken, I Nyoman.
Bali Province in the next ten years is feared to experience a shortage of clean water. One effort that can be done to anticipate a shortage of clean water is by constructing Sidan Reservoir. Sidan Reservoir is located in the upstream of the Ayung River Basin. Sidan Reservoir is prioritized to meet raw water needs and it is also calculated to meet the needs of irrigation water in the downstream of the reservoir. The initial stage in this study is to analyze the availability of water as an inflow to Sidan Reservoir using the rainfall-runoff model of the ITB water balance method. Synthetic discharge as the results from the rainfall - runoff model are analyzed as Q90 dependable discharge. Furthermore, it analyzes raw water needs and irrigation water needs as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sidan Reservoir operation; Dependable discharge; Raw water needs; Irrigation water needs; RIBASIM.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5725

Construction an innovative separator sunflower grain with new methods
Provedor de dados: 111
Autores: chavoshgoli, esmaeil; abdollahpour, shamsollah; ghassemzadeh, hamidreza.
  The sunflower grain is very popular due to fresh and nutty consumption in some countries such as Iran, Turkey and many Arabic countries which is usually harvested without high capacity harvester at high moisture content in Iran. Also, the available methods have low efficiency for segregation the grains from sunflower head. Therefore, this study was conducted to design, construct and evaluate an innovative separator apparatus using the properties of nutty sunflower and applying kinematic equations. This apparatus includes the threshing and cleaning unit that the variables of its components are adjustable. So, with these capabilities, these variables can be optimized for any variety of sunflowers and this information can be used to develop suitable combine...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5935

Energy and exergy analyses of convective drying of green bell pepper in a cabinet tray dryer
Provedor de dados: 111
Autores: ODEWOLE, Michael Mayokun.
This paper presents CFD (Computational Fluid Dynamics) in the drying process of green bell pepper in a cabinet tray dryer using three drying temperatures (50, 55 and 60 °C). Engineering simulation software ANSYS 14.5 was used to simulate the model of the dryer in 2D (2 Dimensional). The ANSYS Design Modeler modeled the 2D representation of the dryer and ANSYS ICEM was used for mesh analysis. Thereafter, the derived data from the simulation was used in the calculation of the energy and exergy analyses of the dryer based on the thermal efficiency with respect to the varied drying temperatures in order to assess the performance of the system in terms of energy utilization (EU), energy utilization ratio (EUR), energy efficiency, exergy inflow and outflow,...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5426

Shading level, reflective material, and seeding depth on the growth of baru seedlings
Provedor de dados: 111
Autores: Costa, Geany Giovana Silva da; Costa, Edilson; Silva, Eliamara Marques da; Borges, Renato Silva; Binotti, Flávio Ferreira da Silva; Vieira, Gustavo Haralampidou Costa; Souza, Andréia Fróes Galuci Oliveira de.
The baru (Dipteryx alata Vog.) is a native species of Brazilian cerrado, and has been widely used in reforestation, medicine, and food industry. The effects of shading levels, reflective material, and seeding depth on the growth of baru seedlings were investigated in this study. The seedlings were grown in full sunlight, and in three production nurseries constructed with 18%, 30%, and 50% shading screens on growing benches coated or not coated with a reflective material (Aluminet®). The seeds were sown at depths of 2.0 or 4.0 cm in black polyethylene bags of 15.0 × 25.0 cm (1.8 L), filled with substrate formulated from the mixture of sandy soil: bovine manure: vermiculite (5: 3: 2). Each seedling production environment was considered an experiment because...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dipteryx alata; Seedling production; Plant growing environment; Light restriction.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5785

EFFECT OF COB SIZE AND MOISTURE CONTENT ON SHELLING PERFORMANCE OF LEVER OPERATED MAIZE COB SHELLER
Provedor de dados: 111
Autores: Bashir, Basharat; DIXIT, JAGVIR; DIXIT, JAGVIR.
The operating factors were studied for different maize shelling methods (lever operated maize sheller, octagonal tubular maize sheller and conventional beating method) that affected losses and capacity of shelling methods. The factors comprised two levels of moisture content (16-20 % and 12-16 %) and three levels of cob size (&amp;lt; 30mm, 30-40 mm, and &amp;gt; 40 mm).  The results of this study indicated that the shelling force required to detach maize grains from the unshelled cob was dependent on the grain moisture content and cob size. Highest shelling force of 173.5 N was found at moisture content of 16-20% w.b. and cob diameter &amp;gt; 40 mm while the lowest shelling force of (133 N) was found at cob diameter &amp;lt;30 mm and moisture content of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cob moisture content; Cob size; Lever operated maize cob sheller; Shelling   capacity; Shelling efficiency; Grain breakage.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5879

Relationship of Pears’ Dielectric Properties and Rates of Pears’ Bruise
Provedor de dados: 111
Autores: Azadbakht, Mohsen; Mahmoodi, Mohammad Javad; Vahedi Torshizi, Mohammad; Asghartabar Kashi, Peyman.
Nowadays, dielectric materials, as one of the nondestructive methods, have drawn the researchers’ attention to their diverse array of advantages to the other methods. Before loading and storage, 120 pears were examined under CT-Scan and 81 pears with zero bruise were selected followed by subjecting them to quasi-static and dynamic loading and a 10 day storage period was chosen to investigate the bruise levels and their relationships with dielectric constant. At the end of the storage period, the fruits were measured in their dielectric constant after their bruise levels were determined in CT-Scans. The measurements were undertaken in capacitor plate distances of 8, 11 and 14 cm for input voltages of 6, 10 and 14 V and input voltage frequencies of 20, 60...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dielectric; Pears; Bruise; CT-Scan; Load; Moisture; Voltage.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5480

Effect of modified atmospheric conditions to soybean seeds under hermetically sealed large capacity storage
Provedor de dados: 111
Autores: Gunathilake, Champathi Chaminda.
This study was carried out to evaluate the effect of modified atmospheric conditions (MAC) created in large capacity hermetically sealed soybean storage in comparison to ambient warehouse soybean storage. Change of physiochemical properties of soybean such as hardness, 1000 seed mass, bulk density, color, moisture content (MC) under sealed hermetic condition was evaluated. As well, change of biological condition such as germination percentage (GMP) and change of nutritive property such as protein content (PC) of soybean stored under MAC (sealed hermetic condition) were evaluated. Similarly change of those all physiochemical, biological and nutritive properties under ambient warehouse conditions were evaluated and these values were compared with their...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Modified atmospheric storage; Hermetically sealed; Soybean properties.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5623

Assessing saturated hydraulic conductivity from the dielectrically-predicted dry bulk density
Provedor de dados: 111
Autores: WIJAYA, Krissandi; Kuncoro, Purwoko Hari; Nishimura, Taku; Setiawan, Budi Indra.
Direct measurement of saturated hydraulic conductivity (Ks) and dry bulk density (rb) is often laborious, time consuming, and expensive. Predicted dry bulk density (rb-ADR) using Amplitude Domain Reﬂectometry (ADR) probe has been employed to predict saturated hydraulic conductivity (Ks_ADR) after a slight modification on the previously available Non-Similar Media Concept (NSMC) model. All the predicted values were validated using the corresponding measured data of 108 undisturbed samples for each of 0-15 and 15-30 cm soil depths observed. The proposed “Dielectric NSMC” model could describe rb_ADR dependencies of Ks_ADR better than the other proceeding models for the both ranges of soil depths observed. The proposed model tended to slightly underestimate...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5813

Emission Characteristics of a Compression Ignition Engine Running Castor Biodiesel as a Blending Agent
Provedor de dados: 111
Autores: Busari, Raheed Amao; Olaoye, Joshua Olanrewaju.
The objective of this study was to investigate the effects of castor biodiesel and its blends on the emission characteristics of a compression ignition engine. The research work was carried out on a single cylinder, four-stroke, water cooled, direct injection diesel engine by using biodiesel made from castor oil, compared with conventional diesel. The fuels used in the analyses are B5, B10, B15, B20, B25, B50, B100 and convectional diesel. The compression ignition engine was operated by varying the loading conditions (0 – 6kW) in a step of 1kW. Based on the parameters measured, detailed analyses were carried out on five regulated exhaust emissions i.e. NOX, CO, CO2, O2, and HC. The results clearly indicated that the engine running with biodiesel and their...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Compression ignition engine; Castor biodiesel; Nitrogen oxides; Carbon dioxide; Oxygen and Carbon monoxide.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5598

Drying kinetics and quality of Cissus quadrangularis Linn. dried by convective hot air
Provedor de dados: 111
Autores: Jongyingcharoen, Jiraporn Sripinyowanich.
This research aimed to develop a suitable drying model of convective hot air drying of Cissus quadrangularis Linn. (CQ), determine the effective moisture diffusivity of the drying process and the activation energy of CQ, and investigate the effects of different drying temperatures (40, 60, 80, and 100°C) on energy consumption and quality of dried CQ. The generalized linear-plus-exponential-type model proposed in this study could be used to describe the moisture data of hot air drying of CQ satisfactorily with an R2 of 0.9957. The effective moisture diffusivity was in the range of 0.7302-9.1281 ×10-9 m2/s. a positive relationship was observed between this parameter and drying temperature. The activation energy of CQ was 39.78 kJ/mol. The lowest energy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cissus quadrangularis; Hot air drying; Drying kinetic; Drying model; Quercetin.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5663

Determination of some apricot seed and kernel physical and mechanical properties
Provedor de dados: 111
Autores: Fayed, Mohamed Ismail Abd El-Ghaffar.
At the duration of this study, a sample of 100 intact apricot fruits, canino variety were selected randomly. The seeds were shelled using a nutcracker and the intact kernels were separated manually. Then, some apricot seed and kernel physical and mechanical properties were determined as relative parameters for designing the apricot seed kernels separator. The obtained results may be summarized as follows:At 7.13% (w.b.) apricot seeds moisture content, the length, width and thickness values were 18.90, 16.48 and 11.31 mm, respectively. The surface area, projected area, volume, arithmetic mean diameter, geometric mean diameter, sphericity and aspect ratio values were 727.09 mm2, 244.60 mm2, 1847.69 mm3, 15.56 mm, 15.20 mm, 80.61 % and 87.53 %, respectively....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apricot; Canino; Kernel; Physical; Mechanical properties.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5729

Temporal Crop Coefficients and Water Productivity of Lettuce (Lactuca sativa L.) Hydroponics In Planthouse
Provedor de dados: 111
Autores: Muharomah, Riani; Setiawan, Budi Indra; Purwanto, Mohamad Yanuar Jarwadi; Liyantono, Liyantono.
Almost all countries in the world have used lettuce hydroponic cultivation in planthouses because it is appropriate for plant growth and production. The microclimate inside planthouse is an environmental factor that affects plant growth and development. Vegetables planted in the planthouse have a great deal of water requirement. Selecting a method with a more accurate estimation of crop evapotranspiration is a critical factor for efficient water management. In this research, the climates that are affecting the lettuce evapotranspiration with modification of floating hydroponic technique inside the planthouse were investigated. The objectives of this research are to figure out the microclimate, the appropriate model of the potential evapotranspiration, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lettuce hydroponics; Microclimate; Evapotranspiration; Crop coefficient; Water productivity.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5656

Parboiling Duration Effects on Physical Properties of African Breadfruit Seed
Provedor de dados: 111
Autores: Obi, Okey Francis; Okechukwu, Michael Emeka.
Abstract Parboiling is a pre-dehulling operation and, the effect on the physical properties of African breadfruit seed (var. africana) was investigated. Freshly extracted seeds were parboiled for 0 (control), 5, 10, 15, and 20 minutes, and their physical properties determined. It was observed that parboiling time had a significant effect (p&amp;lt;0.05) on all the physical properties of African breadfruit seeds investigated. The moisture content of the seed ranged from 32.92±0.23 to 50.78±0.19 % (w.b.) as the parboiling time increased. Generally, it was observed that the mean values observed for the physical dimensions (axial dimensions, mean diameters, sphericity, aspect ratio and surface area) increased from 0 to 10 min. parboiling time after which the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: African breadfruit; Parboiling time; Physical properties; Frictional properties.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4918

Development of a portable model of heat treatment tent with bottom black cover for the control of citrus greening disease in Brunei
Provedor de dados: 111
Autores: Basunia, Mohammad Ali.
 Citrus Greening Disease is a serious bacterial disease in citrus plants which causes loss of production of citrus fruits all over the world, including Brunei. A portable and thermal effective heat treatment tent was developed as an attempt to control and manage this disease. A 1.4 meter tall tent with opaque canvas was fabricated to test for a 1.2 meter tall lime tree. The testing involved heat treatment tests for three days with tent having black plastic sheet bottom cover and without bottom cover over the soil surface around the plant . Overall, the results proved that the plant was not damaged during the heat treatment, and the fabricated tent frame was light and portable with minor folding and stability problems. The tent was unable to maintain the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Mechanization and Mechanical Engineering Keywords: heat therapy; Tent; Citrus; Greening disease.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5692

Influence of feed moisture and hammer mill operating factors on bagasse particle size distributions
Provedor de dados: 111
Autores: barati kakolaki, masoud; Kinamehr, Mohammad Hosein; Abooali, Behnam.
Physical properties of ground bagasse could be important for processes such as densification. Bagasse chops into 20–25 cm slice at three moisture content 8, 12 and 16% (wb) were ground using a hammer mill (0.5 hp) with three screen sizes of 1, 2.5 and 4 mm at two hammer mill speeds 1400 and 2000 rpm. Physical properties of grinds such as geometric mean diameter of grind particles, particle size distribution were determined. The highest specific energy consumption was 750 KjKg-1 for the sample that has highest moisture content, using smallest screen size and at 2000 rpm hammer mill speed. And least specific energy consumption was 11 Kj­Kg-1for the sample that has least moisture content, using largest screen size (4 mm) and at 1400 rpm speed. Four...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5067

Contextual Match-making In Waste Biomaterials Management For Peri-urban Agriculture
Provedor de dados: 111
Autores: Jjagwe, Joseph.
Peri-urban agriculture is constrained by inadequate space and insufficient inputs. The objective of this paper was to estimate volumes of peri-urban agriculture waste materials generated and match it with identified users who need them in Kampala City (Uganda) as either animal feeds or manure. The mass of manure from animals and the crop residues generated were determined using the standard manure potential of animals and crop to residue (C:R) ratio methods respectively. The required baseline number of animals and crops grown in Kampala was obtained from secondary data. Of the 263,449 livestock animals in Kampala, a potential of 11,499 Mt of manure can be generated that can sustain 858 farmers each occupying 0.4 ha of land and using 13.33 Mt of manure each...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5923

The Role of Information and Communication Technology in Poultry Broiler Production Process Control
Provedor de dados: 111
Autores: Jackman, Patrick; Penya, Hector; Ross, Robert.
Broiler production is arguably one of the most challenging food supply industries in the world due to the large number of animals that are reared on a given site, and the competitive nature of the sector. These factors taken together mean that every opportunity to optimise the production process must be considered to boost bird weight gain while at the same time reducing resource investment and risk of major incidents. As a result of this, the last decade has seen the introduction of Precision Livestock Farming techniques to the broiler production industry.In this paper we review the emergence and trends in Precision Livestock Farming in the broiler production industry by examining both in-market and laboratory based advances for this sector. The review...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Poultry; Broiler; Automatic Control Systems; Machine Learning; Sensors; Predictive Modelling.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5319

Evaluation of the SIRMOD model for optimum furrow irrigation performance
Provedor de dados: 111
Autores: Alejo, Lanie Alejandro.
This study aimed to evaluate and optimize the irrigation performance of a furrow irrigation system in the Philippines using the Surface Irrigation Simulation, Evaluation and Design (SIRMOD) model. Observed infiltration using a double ring infiltrometer and water advance from actual irrigation experiments conducted on a cornfield was used to calibrate and validate the SIRMOD model in a silty clay loam soil. Simulations showed that with appropriate cutoff time of irrigation and inflow rates, water savings from 29% to 49% depending on furrow length can be realized. This study revealed that infiltration characteristics derived from infiltration data using double ring infiltrometer tests would suffice as input to the SIRMOD model to estimate advance time of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation infiltration characteristics; Water savings.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5675

A Closed-Type Irrigation System Performaces in the Plant House
Provedor de dados: 111
Autores: Dewi, Vita Ayu Kusuma; Setiawan, Budi Indra; Minasny, Budiman; Wasodo, Roh Santoso Budi; Liyantono, Liyantono.
Water application in the plant house is usually done by surface irrigation and manual micro-irrigation. Because of the conventional irrigation system’s inefficiency, water-saving irrigation has been developed. Smart or automated irrigation usually uses a microcontroller to maintain irrigation timing and soil moisture conditions. This automation is highly efficient in water application and can increase plant productivity. However, this system is costly and the irrigation components are not always available for smallholder farmers. Here we develop an automatic irrigation technology based on the capillarity principle that dramatically reduces the cost. This irrigation technology does not use any microcontroller device and the components can be easily...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: High productivity; Horticulture; Irrigation; Plant house; Water use efficiency.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5981

Determination of Trigonelline and Chlorogenic Acid (CGA) Concentration in Intact Coffee Beans by NIR Spectroscopy
Provedor de dados: 111
Autores: BUDIASTRA, I WAYAN.
Trigonelline and chlorogenic acid (CGA) are important quality indicators of coffee. Commonly, trigonelline and CGA concentration are determined using chemical method. This method is time consuming and destructive so it is not suitable for coffee industries which need a fast measurement. The objective of this study was to assess NIR spectroscopy for predicting trigonelline and CGA concentration in intact coffee beans. Coffee beans samples of 96 g (n=100) were placed in a petri dish. The reflectance of samples was measured by FT-NIR spectrometer in the wavelengths of 1000-2500 nm. Subsequently, the trigonelline and CGA content of samples were determined using Liquid Chromatography Mass Spectrometry (LCMS). Spectra data processing such as first and second...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural and Biosystem Engineering; Agricultural Process Engineering; Nondestructive Quality Evaluation chlorogenic acid  intact coffee bean  NIRS  PLS  trigonelline.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4590

Effect of Conservative Tillage on Physical Properties of Soil and Yield of Rainfed Wheat
Provedor de dados: 111
Autores: Younesi Alamooti, Mohammad.
     In order to study the effect of conservative tillage on a number of physical properties of soil and the yield of rainfed wheat, an experiment in form of a randomized complete block design (RCBD) with three replications was conducted in a field in Aliabad County, Iran. The study treatments included: T1) Conventional method, T2) Combined moldboard plow method, T3) Chisel-packer method, and T4) Direct planting method. During early October, the study soil was prepared based on these treatments in a field which was used for rainfed wheat farming in the the previous year. The apparent specific gravity of soil, weighted mean diameter (WMD) of soil aggregates, soil mechanical resistance, and soil permeability were measured. Data were analyzed in MSTAT-C....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Machinery Department; Agricultural Engineering Research Institute Rainfed agriculture; Conservative tillage; Energy consumption; Wheat.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5111

Design and fabrication of a locally made motorized multi-grain crop planter
Provedor de dados: 111
Autores: Soyoye, Babatunde Oluwamayokun.
Grain crops have been of great importance in providing food for man, feed for livestock and raw materials for some agro-based industries.  Studies in grain crops production in different parts of Nigeria have shown an increasing importance of the crops amidst growing utilization by food processing industries and livestock feed mills.  The pre-design experimentation was carried out on yellow maize (Zea mays), Ife Brown cowpea (Phaseolus vulgaris), Seed soybean (Glycine max) and groundnut (Arachis hypogaea L). Some of the properties determined include size, geometric mean diameter, surface area and angle of friction. A locally made motorized vertical seed-plate grain crops planter was designed, fabricated and assembled.  Design criteria, calculations and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural and Environmental Engineering; Farm Power and Machinery option grain crop  planter  motorize  design and fabrication.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5633

Dual Effect of Audible Sound Technology on the Growth and Endogenous Hormones of Strawberry
Provedor de dados: 111
Autores: Hassanien, Reda Hassanien Emam; LI, Bao Ming.
ABSTRACTSound waves could improve the growth and increase yield. However, it could be a form of environmental stresses. Therefore, the aim of this study was to investigate the effect of audible sound on the growth and endogenous hormones of strawberry plants (Fragaria_ananassa). Five endogenous hormones, namely indole-3-acetic acid (IAA), gibberellin (GA), abscisic acid (ABA), jasmonic acid (JA) and Zeatin Riboside (ZR) have been investigated. Plants exposed to sound frequency of 0.1 - 1 kHz and sound pressure level (SPL) of 70 - 100 dB for 2 hours, 3 hours and 5 hours at different growth stages. Results revealed that plants have different responses to sound waves at different growth stages. Acoustic frequency could accelerate the blooming and the...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5841

Comparative performance evaluation of three coconut cracking devices with conventional cracking technique
Provedor de dados: 111
Autores: BELLO, SEGUN RAPHAEL.
Performance evaluations of three coconut cracking devices was carried out and its results compared with the conventional (hand cracking technique) of hitting on hard surface. The three devices include a punch-split device, an impact-split device and hydraulic press split device which were developed at the Department of Agricultural &amp;amp; Bioenvironmental Engineering Technology, Federal College of Agriculture, Ishiagu.  Each technique was evaluated for output capacity, cracking efficiency, ergonomics, and time required to crack a unit of different grades of coconut. The average cracking efficiency for punch split was 87.09 per cent with a range of 86.76 to 95.00 per cent, impact split efficiency varied from 83.33 to 95.00 per cent with the average of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coconut; Cracking; Impact; Hydraulic; Sphericity; Efficiency; Capacity; Roundness.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5673

Concentrations and Settling Rates of Particulate Matter in Laying Hen Barns in the Hot Climatic Region of Cameroon
Provedor de dados: 111
Autores: Ngwabie, Ngwa Martin.
Particulate matter (PM) serves as a carrier of adhesive gaseous compounds, and may result to an underestimation of gas emissions from livestock barns when only filtered air samples are analysed. PM concentrations have hardly been studied in the unique livestock production system of Sub-Saharan Africa. This study was aimed at generating baseline data for PM (total suspended particulates) concentrations and settling rates in laying hen barns with cemented floors and wood shavings added as an initial bedding material. Measurements were conducted in two naturally ventilated laying hen barns in Cameroon; a barn with 4 months old hens that had just stated laying eggs and a barn with 18 months old egg laying hens. PM concentration was determined gravimetrically...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Air pollution; Climate change; Dust; Laying hens; Particulate matter; Total suspended particulates; Cameroon.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5566

Design, Development and Testing of an Aquaculture Research Temperature Control System
Provedor de dados: 111
Autores: Kolar, Praveen; Hall, Steven G.
A feedback based variable temperature-control system was developed for facilitating indoor aquaculture research. The system included sixteen independent tanks controlled by a personal computer using T-type thermocouples, a 32-channel multiplexer, two 8-channel analog to digital converter boards, and a set of 32 relays.  Electric immersion heaters were used to increase water temperature, while a chiller and heat exchanger was used for cooling. Five centimeter PVC airlifts allowed for aeration and circulation of water. The system was initially used to simulate fixed and diurnal temperatures, but can be programmed to hold or varying temperatures from 5°C to 34°C in each tank independently. In one set of experiments, tanks were held at 10°C, 15°C and 20°C....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recirculating aquaculture; Variable temperature control; Independent tanks; Diurnal fluctuations.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5695

Non-destructive Determination of Bovine Milk Progesterone Concentration during Milking Using Near-infrared Spectroscopy
Provedor de dados: 111
Autores: Iweka, Patricia; Kawamura, Shuso; Mitani, Tomohiro; Koseki, Shigenobu.
In the current dairy industry, an intensive demand for estrus detection and early diagnosis of pregnancy has been increasing. Progesterone is a steroid hormone that is secreted from corpus luteum into bovine blood and milk, and has a role of maintenance of estrus cycle and pregnancy. Therefore, progesterone concentration in bovine milk is used as an important indicator of estrus detection and early diagnosis of pregnancy. Current method for milk progesterone determination requires a hormone extraction procedure that is time consuming, various types of instruments, reagents management, and various assay methods that are destructive in nature. In contrast, near-infrared spectroscopy (NIRS) is a time saving and non-destructive analytical method that can be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food; Engineering; Bio-production; Postharvest.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5578

Evaluation of no-till drill performance under various residue management methods in wheat cropping in the south of Iran
Provedor de dados: 111
Autores: Roozbeh, Majid.
Heavy crop residue on the soil surface impedes no-till drill performance and subsequent crop production in conservation tillage systems and therefore limit its adoption by farmers. Therefore, a field study was conducted to determine the effects of various residue management methods on no-till drill performance. The experimental design was a randomized complete block in five replications. The residue management systems were in four levels of leaving (R.M1), removing (R.M2), chopping (R.M3) and disking (R.M4). Factor analysis was used to group and identify the most effective indicators of drill performance. The results showed that various residue management methods had a significant effect on sowing depth, speed of emergence, effective field capacity, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Direct drilling; Drill performance; Residue management; Wheat.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5559

PRODUCTION OF BIOENERGY FROM RICE-MELON HUSK CO-DIGESTED WITH COW DUNG AS INNOCULANT
Provedor de dados: 111
Autores: Shaba, Mohammed Ibrahim.
Anaerobic digestion of energy crops, residues, and wastes is of increasing interest in order to reduce the greenhouse gas emissions and to facilitate a sustainable development of energy. Production of bioenergy provides a versatile carrier of renewable energy, as methane can be used for replacement of fossil fuels in both heat and power generation. Biogas was produced from co-digestion of rice husk (RH), melon husk, (MH) and cow dung (CD) for 200 days at different rice-melon husk (RH:MH) ratios. Fixed quantity of cow dung slurry was added to each treatment as inoculant to seed the digesters. A mixture-process variable design was used to formulate biogas production from different biomaterials. Concentration of NaOH was varied from 8 to 9 % while total...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4795

Moisture sorption isotherms of dehydrated   (African oil bean) Pentaclethra macrophylla benth. cotyledons
Provedor de dados: 111
Autores: Olurin, Taiwo Olufemi.
Sorption isotherms of (African oil bean) Pentaclethra macrophylla benth. cotyledons were determined by static gravimetric method at different temperatures, in the range from 28 and 48 oC. Equilibrium moisture content (EMC) data were analysed using various sorption models usually applied to dried food materials. Experimental data were analysed by a thermodynamic approach to obtain such properties as net isosteric heat, net equilibrium heat, differential and  integral entropy that provide a deeper understanding of the properties of water and energy requirements associated with sorption process. Sorption isotherms of dried African oil bean cotyledons showed type II isotherm. Adsorption and desorption isotherms were best described by Guggenheim–Anderson-DeBoer...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: African oil bean; Sorption isotherms; Sorption models; Equilibrium moisture content; Hysteresis.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5915

Effect of Magnetized Water on Water Use Efficiency, Yield and Nutritional Qualities of Watermelon under Deficit Irrigation
Provedor de dados: 111
Autores: Yusuf, Kamorudeen Olaniyi; Ogunbamowo, Tolulope Ruth; Obalowu, Rasheed Olarewaju.
Magnetized water (MW) is a non-chemical method and new technology for crop production. It is environmentally-friendly which improves water use efficiency (WUE) and enhances high crop yield. The study was conducted to determine the effect of MW on WUE, yield and nutritional qualities of watermelon under deficit irrigation in a garden shed. A Completely Randomized Design was used for the experimental layout. Irrigation water was treated using magnetic flux density of 319 gauss. Water applied as the treatments were 100%, 80%, 60% and 50% water requirement and each treatment was replicated four times. Watermelon seed (variety: Kaolack with LOT number: VG-PV-0519-KA) was planted in 15 litres/pot (285 mm diameter and 255 mm depth) with 16 pots for MW and 16 pots...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation; Magnetized water; Water use efficiency; Watermelon; Paired t-test.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5833

Assessment of the main sources of variability of soybean (Glycine max) expeller composition and quality: a field study
Provedor de dados: 111
Autores: Maciel, Gisele; Wagner, Jorge Ricardo; Juan, Nestor Antonio; San Martino, Silvina; Bartosik, Ricardo.
Pairs of soybean seeds and their correspondent expeller samples were collected from ten extrusion-expelling processing plants in Argentina. Seeds were analyzed for proximal composition, bulk moisture content (MC) and individual seed MC. Expeller were analyzed for proximal composition, bulk MC, protein solubility in KOH, expeller urease activity and free fatty acid content. Results indicated that average soybean composition was 136 g/kg MC, 207 g/kg oil and 391g/kg crude protein (CP), while the oil extraction efficiency (OEE) of the process was of 60.7%. The expeller composition was 922 g/kg dry matter (DM), 81g/kg oil and 442 g/kg CP. In soybean seeds, coefficient of variation (CV) of MC was 17.2%, 3.0% for CP and 5.1% for oil, while in SBE CV for DM was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soybean processing; Extrusion-expelling; Oil extraction efficiency; Chemical composition; Individual seed moisture.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5991

Effect of awn on aerodynamic properties of paddy grains (Oryza Sativa L.(
Provedor de dados: 111
Autores: Masoumi, Mahdi; Mahmoudi, Asghar; Alizadeh, Mohammad Reza; Abdollahpour, Shamsollah.
Paddy grains (rough rice) are categorized into two groups, awned and awnless paddies.The awn is a needle-like appendage that extends from the lemmas of the florets and is important domestication and agronomic traits in paddy. The aerodynamic properties of paddy grains and understanding the effect of awn on the aerodynamic properties of paddy are important information for grain harvest and postharvest process like cleaning, handling and for designing related systems. So in this research, aerodynamic properties of two local varieties of paddy (Hashemi and Gilaneh) and effect of awn as specific traits on aerodynamic properties were investigated in different moisture content. Terminal velocities were measured for awned and de-awned paddy grains using the...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5465

Comparison of the Energy and Economic Balance of Crop Production
Provedor de dados: 111
Autores: Voltr, Vaclav.
The article deals with the connection between energy and economic indicators of crop production in the Czech Republic. Herein, a procedure for the determination of energy inputs and outputs from production based on soil-climatic conditions is outlined. For basic arable crops, other possibilities using the production in the energy sector as well as in relation to soil-climatic conditions are evaluated. The article reviews the production and economic parameters of crop production for potential energy use, such as natural production, energy production, electricity and operational profit. The maximum production parameters are achieved by sugar beet and, consequently, maize for silage. Other energy-efficient crops are alfalfa and clover, but with technological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy; Crops; Operating margin; Soil-climatic condition; Maise; Alfalfa.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5502

ALMOND OIL: POWERHOUSE OF NUTRIENTS
Provedor de dados: 111
Autores: Akubude, VIVIAN Chimezie; Maduako, Josaphat; Egwuonwu, Celestine; Ajala, Elijah Olawale; Olaniyan, Adesoji Matthew; Ozumba, Isaac Chinedu; Nwosu, Caesar.
The relative abundance of almond seed in several tropical regions of the world coupled with the little knowledge of its utilization in vegetable oil production prompted the need for this review. The aim is to review almond oil expression through different extraction/expression approach, the economic and health benefits of almond oil, and the challenges and prospects of almond oil extraction in Nigeria. This review covers the recent significant materials found in the literature on almond seed and oil extraction/expression. Almond oil is an essential oil packed with a lot of nutrients that are beneficial to human health. Therefore, it is important to devise better approach for maximum oil extraction/ expression.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Almond seed; Vegetable oil; Oil expression methods; Nutritional content.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5593

Influence of Extraction Temperature and Moisture content on the Yield and Physicochemical Properties of Hog plum (Spondias mombin) Kernel Oil
Provedor de dados: 111
Autores: Orhevba, Bosede Adelola.
This study investigated the extraction and characterisation of hog plum seed kernel. Oil was extracted using solvent method; normal hexane was used as solvent for the extraction process. The study was carried out at moisture contents of 8.03, 10.57 and 12%, and at extraction temperatures of 40, 50 and 60̊ C. The physicochemical properties of the oil investigated were density, saponification value, acid value and free fatty acid. The statistical analysis done showed that moisture content and extraction temperature significantly affected the oil yield; the maximum oil yield in this study was found to be 13.42% at moisture content of 12% and extraction temperature of 60oC.  The physicochemical properties of the investigated oils were within the requirements...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Extraction temperature; Moisture content; Physicochemical properties; Oil yield.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5495

The relationship between the wood properties and decay levels of Pecan logs
Provedor de dados: 111
Autores: Zhang, Peiyao; Riskowski, Gereald.
The objective of this research was to find a solution for how to define and determine the decay levels of Pecan logs. Ultimately this information could be used to determine the preferred decay level of Pecan logs for Auricularia auricular-judae (wood ear mushroom) growth.  Previous research had found some relationship between densities and C/N ratio of hardwood boreal trees in Canada. In this research, the physical (density, moisture content, penetration depth, etc.) and chemical properties (carbon, nitrogen and C/N ratio) of logs were measured from pecan logs at different levels of decomposition. First, the traditional visual method was used to define the decay level and they were compared to the log physical and chemical properties to find relationships...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Auricularia auricula-judae; Pecan logs; Wood decay level; Carbon; Nitrogen.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5685

Shading levels and substrates on quality of rose apple seedlings
Provedor de dados: 111
Autores: Costa, Geany Giovana Silva da; Salles, Josiane Souza; Silva, Eliamara Marques da; Costa, Edilson; Lima, Alexandre Henrique Freitas de; Binotti, Flávio Ferreira da Sllva; Zoz, Tiago; Souza, Andreia Froés Galuci Oliveira de.
Estudos sobre a formação de mudas de árvores frutíferas fornecem informações que auxiliam no sistema de produção das espécies. O objetivo foi avaliar os efeitos dos níveis de sombreamento e substratos na formação de mudas de macieira. Foram avaliados ambientes com níveis de sombreamento 0 (luz solar total), 18, 35 e 50%. Quatro substratos alternativos das combinações de solo, esterco bovino, Bioplant ®, areia fina e vermiculita superfina foram utilizadas. Utilizou-se delineamento inteiramente casualizado para avaliar os substratos, com cinco repetições de cinco mudas e, como não havia repetições dos ambientes de cultivo, foi realizada uma análise conjunta, permitindo a comparação dos ambientes de produção de mudas. Mudas de macieira produzidas em ambientes...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5704

Situation of livestock insurance in the region of Ghardaia (Algerian Northern Sahara)
Provedor de dados: 111
Autores: BENSAHA, Hocine.
Agricultural insurance is one of the important tools that help farmers gain access to appropriate financial services in support of agricultural production and to face some of the involved risks. The present article presents a detailed evaluation of the functioning system of the agricultural insurance system. Assessing the participation of the Algerian Caisse de Mutualité Agricole, in the current rate of agricultural development. This institution of agricultural mutuality, with its national fund and its regional mutuals, is likely to be affected by several changes or even to be surpassed by other companies competing on the insurance market. An analysis was conducted in insurance companies and farmers to probe the reality on the ground and identify...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural insurance; Participation; Development; Saharan regions; Algeria.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5807

Determination of the required force to pick cottonseed from four cotton varieties boll in three different harvesting time
Provedor de dados: 111
Autores: Azadbakht, Mohsen; Jahanian, Mahshid; Asghari, Ali; Nowrouzieh, Shahram.
The cotton plant contains fruits called capsules or bolls, in which the cotton fiber grows, and after the growth stages, the fibers appear through separating the carpels. This research investigated the required force to pick the cottonseed from four cotton variety   (Golestan, Khorshid, Sajedi, and Kashmar) in three levels of moisture (three harvesting times) and three revolutions (1500, 2500 and 3500 rpm). To measure this force, designed and manufactured a device similar to a spindle cotton picker and using the actual needle of John Deere machine 9920. The bolls were tested in different revolution and moisture levels with the device. The results of experiments showed that the cross-effects of variety on speed, harvesting time on variety and harvesting...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cotton; Force; Fiber; Harvest; Cottonseed.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5354

Design and construction of a mechanized charcoal-fueled corn roaster
Provedor de dados: 111
Autores: Sobowale, Sunday; Omotoso, Oluwole; Olatidoye, Olawale; Olayanju, Adeniyi; Mulaba-Bafubiandi, Antoine.
The economic situation in most developing countries has left farmers and processors operating at small scale and under unhygienic environment. The productivity is often too low to justify labor and time investment. With respect to the challenges particularly associated with roasting of corn, a roaster was designed, constructed and its performance evaluated. The mechanized charcoal fuelled corn roaster consists of a frame, roasting unit, charcoal tray, air blowing unit and a power transmission system. The functional efficiency of the machine at different roasting temperatures of 100, 130 and 150 oC ranged between 88 and 94%, while the roasting capacity and roasting time ranged between 40 and 54 fresh corns per hour in 22 and 30 min, respectively. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corn roaster; Corn; Design and construction; Sensory evaluation; Food security.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5975

AN ATTEMPT TO REDUCE SPRAY DRIFT IN WIND TUNNEL EXPERIMENTAL USING SUBSTITUTION NOZZLES ON THE BOOM
Provedor de dados: 111
Autores: Alheidary, Majid Hazim.
Spray drift is defined as the movement of small spray droplets as particles or vapour at the time of application or soon thereafter out of the target zone by the action of air or incorrect nozzle mounted on boom. Several factors are known to affect spray drift with significant differences such as physical parameters, technological parameters, and meteorological parameters. The mitigation of spray drift from agricultural application is an important issue that concerns many researchers and authors working with field tests. Wind tunnel technique is considered as an alternative method to assess spray drift that move away from the target site intended under different settings as boom heights and wind speeds. In 2015, IRSTEA Montpellier wind tunnel was fitted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drift ratio; Wind tunnel; Nozzle type; Wind speed.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5665

Development of a pineapple pomace based extruder
Provedor de dados: 111
Autores: Babatunde, Oduntan Oluwafemi; Bamgboye, Adeleke Isaac.
Mechanisms to support fish food production are constantly evolving with increasing available technologies. However, extruders for fish feed production with pineapple pomace are based on complex operating conditions and present difficulties in confirming design parameters. This paper aims at developing and testing single screw extruder capable of producing fish feed. The design theory of single-screw extruder geometry has led to the construction and discussion of the capabilities of current design technology for the production of fish feed. The main frame is a base that carries the feed unit, the extrusion unit, and the main electric drive motor, and also identifies clear speeds that are suitable for screws that use pineapple pomace based as internal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Complex operating conditions; Construct; Design theory; Screw; Die size.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5498

Development of a manually operated palm oil extraction machine
Provedor de dados: 111
Autores: Alam, Murshed; Nandi, Rajesh; Kabir, Ehsanul.
The palm farmers of Bangladesh are suffering for want of an extraction machine. Therefore, a research was undertaken to design and develop a manually operated palm oil extraction machine at the department of Farm Power and Machinery, Bangladesh Agricultural University. It is a press type machine. A screw leads a piston manually in a perforated cylinder to press the mesocarp (pulp of palm fruit) to extract oil. The volume of the cylinder of the machine was found 0.03 m3 and maximum 20 kg fruits can be accommodated at a time. The amount of crude palm oil extraction at full capacity of the machine was found 8 kg/hr., which is higher than any manually operated extracting machine available in the market. The crude oil extraction efficiency of the machine...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5596

A SCHEDULING-BASED ALGORITHM FOR LOW ENERGY CONSUMPTION IN SMART AGRICULTURE PRECISION MONITORING SYSTEM
Provedor de dados: 111
Autores: Ajao, Lukman Adewale.
The worldwide connectivity design of embedded wireless sensor-based Internet of Things (IoT) using 6LoWPAN platform has significantly increases in industry. However, the development of smart technology in agriculture precision for remote control, monitoring and sensing usually encounter some challenges in the IoT architecture, these include: high power consumption, interoperability, security, and end-to-end communication. In this paper, the authors developed a smart agriculture precision monitoring system using scheduling-based algorithm techniques to accomplished low energy consumption during the system operations. The IEEE 802.11 b/g/n technology (ESP 8266) was used as IoT gateway, ATmega 2560 development chip, with other wireless sensor nodes (such as...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5929

Development and Performance Analysis of Low Cost Combined Harvester for Rabi Crops
Provedor de dados: 111
Autores: JAWLEKAR, SAGAR BHASKARRAO; SHELARE, SAGAR DNYANESHWAR.
The number of farmers in India especially in Vidarbha Maharashtra is decreasing due to the continuous loss in cultivation. Harvesting technique is one of the primary reasons behind losses. Manual harvesting is dreary and tedious. To overcome this issue harvesting machines are accessible yet these are substantial and costly. Since farmers with small lands have constrained utilization and furthermore harvesting is done hardly twice or thrice in a year, so it is difficult to afford expensive machines. So, there is a need to develop a small scale and cost-efficient harvesting machine which is affordable and also evacuates the issue of manual harvesting. In the proposed research work combined harvester is manufactured and tested for wheat and rice. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MECHANICAL ENGINEERING Harvesting; Performance analysis; Combine; Grain damage.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5429

Effect of pre-processing conditions on oil point pressure of sheanut (Vitellaria paradoxa) kernel
Provedor de dados: 111
Autores: AVIARA, NDUBISI A.; OJIOFOR, CHINEDU G.; OWOLARAFE, OSENI K.; OGUNSINA, BABATUNDE S.; OLUWOLE, FASIU A.
Oil point pressure of sheanut kernel was determined under different pre-processing conditions of moisture content, heating temperature, heating time and particle size. Results show that the pressure decreased as moisture content increased from 4% to 6%, and thereafter, increased with further increase in moisture content. It equally decreased with increase in temperature and heating time. Highest oil point pressure value was 2.6389MPa for coarse kernel particles at 4% moisture content heated at 50oC for 5 min, and 1.5554MPa for fine particles at 10% moisture content heated at 50°C for 5 min. Lowest value for coarse and fine kernel particles was 0.929MPa and 0.6380MPa respectively and this was obtained at the conditions of 6% moisture content, 100oC and 15...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sheanut; Seed oil expression; Oil seed processing; Oil point pressure; Moisture content.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4310

Effects of some kernel factors on palm kernel oil extraction using a screw press
Provedor de dados: 111
Autores: Ezeoha, Sunday Louis.
Several factors are known to affect mechanical oil expression from oilseeds. In this study, the influence of kernel moisture content (KMC), kernel heating temperature (KHT), kernel heating duration (KHD) and kernel particle size (KPS) on palm kernel oil (PKO) yield by a mixed variety of oil-palm kernels using a locally fabricated screw press was investigated. The one-factor-at-a-time (OFAT) experimental approach was employed. Design-Expert 8P (Version 8.0.6) software was used for statistical analysis of data. Within the range of values of variables studied, the results showed that at 5% significance level only kernel size significantly affected PKO yield. Thus, KPS is a critical factor in PKO extraction using the screw press. Oil-palm kernels should not be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering Kernel factors; Palm kernel oil; Screw press; Effects; Oil-palm; Oil extraction.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4108

GIS-BASED SYSTEM ANALYSIS FOR WASTE BIN LOCATION IN ENUGU MUNICIPALITY
Provedor de dados: 111
Autores: Ugwuishiwu, Bonificae Obinwanne; NWOKE, OJI ACHUKA; Okechukwu, Chibueze Henry; Echiegu, Emmanuel Amagu.
Waste collection in Enugu has been a major challenge requiring urgent attention. The aim of the work therefore was to study with GIS the management of the existing bin distribution and collection system in order to determine the optimal frequency for waste collection. The methods adopted include questionnaires, oral interviews and field observations to determine the state of waste collection. Waste collection points both legal and illegal dumpsites were identified using handheld GPS and the points were incorporated into a map using Arc GIS 10.2 software. A total of 177 dumpsite locations were discovered during the study. Illegal dumpsites were 35 in number sand legal dumpsites instituted by ESWAMA were 142. Out of the 142 authorized dumpsites, 55 dumpsites...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dumpsites; Bin Location; GIS; GPS; Solid waste; Collection; System analysis.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5698

Comparison of rotary dryer with conventional fixed bed dryer for paddy drying, milling quality and energy consumption
Provedor de dados: 111
Autores: Gazor, Dr. Hamid Reza; Alizadeh, Mohammad Reza.
Operation of a rotary dyer (RD) was compared with conventional fixed bed dryer (FBD). Drying time, trends of moisture content and specific energy consumption for water evaporation were investigated for drying of Iranian paddy cultivar., rice milling quality such as husking, milling recovery (MR) and head rice yield (HRY), were studied. Result showed that, using FBD decreased drying time and saved energy 8 and 6.78 percent, respectively. Specific energy consumption in NRD was 10.48 MJ per one kilogram of removed water and it was 6.82 percent more than FBD.  Paddy moisture contents and temperatures differences at top and bottom layers of FBD were 2 percent and 6°C, respectively. High thermal stress in low layers of FBD increased grains cracking chance in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paddy; Rotary dryer.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5556

Economic evaluation of a business model of selected solar thermal devices in Thar Desert of Rajasthan, India
Provedor de dados: 111
Autores: Poonia, Surendra; Singh, A.K.; Jain, Dilip; Mishra, Dinesh; Singh, R.K.
Business of fabricating solar thermal devices can play an important role in the economic growth of the country. These technologies can create more employment opportunities in rural as well as urban areas and supplement conventional energy sources in addition to reducing carbon emission. For starting a new business, economic feasibility needs to be assessed in terms of break-even analysis and economic attributes. Banks provide loans only on the basis of economic attributes of the project. Therefore, an attempt has been made to determine the various economic indicators for a unit of three novel solar thermal devices namely, animal feed solar cooker, non-tracking solar cooker and solar dryer for guiding new entrepreneurs. The different economic parameters...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5801

Potential of Peatlands in Bangladesh and Sustainable Management Strategy
Provedor de dados: 111
Autores: Ali, Md. Rostom.
Peat is an unconsolidated deposit of semi-carbonized plant matter. Peat is usually found in water-saturated environments and has certainly high moisture content. Haors are peat-dominated areas in Bangladesh, which hold the largest peat reserves of the country. Peat is one of the most important mineral resources worldwide. For the utilization of peat similar to other countries, it is necessary to know its energy and fertility potential and develop a sustainable management strategy for peatlands in Bangladesh. This study mainly focused on the heating and fertility potentials of peat in Bangladesh and on strategies to sustainably manage these peatlands. This study was carried out in the haor-based Katiadi and Mohanganj upazilas in the Kishoreganj and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Haor; Peat; Heating potential; Organic fertilizer; Peatland management; Bangladesh.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6017

UPFLOW model prediction of capillary rise into root zone soil moisture for shallow water table soils of Obio Akpa river floodplain in the Niger-Delta environment, Nigeria.
Provedor de dados: 111
Autores: Udom, Ikpe Jimmy; Nta, Samuel Akpan.
UPFLOW model was used to provide assessments of capillary rise into root zone soil moisture in shallow water table soils of Obio Akpa river floodplain using drum-culture lysimeters. Soil moisture depletion experiment was undertaken through the use of drums with bases intact and drums with bases removed and sunk in the field at different depths during the dry period with no rainfall and no irrigation. UPFLOW model was validated by comparing simulated capillary soil moisture values from a falling water table with gravimetrically observed data from 0 – 500, 500-1000 and, 1000-1500 mm water table  depth in sandy loam and sandy clay soils. Simulated runs mimic the observed fluctuations and trend of capillary rise to the root zone. The statistical pointers of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: UPFLOW; Capillary rise; Shallow water table; Floodplain; Obio Akpa; Nigeria.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5681

ESTIMATION OF EVAPOTRANSPIRATION RATE IN THE SAHELIAN REGION OF NIGERIA USING GENERALIZED REGRESSION NEURAL NETWORK AND FEED FORWARD NEURAL NETWORK
Provedor de dados: 111
Autores: Olorunfemi, Idowu Ezekiel; YUSUF, Habeeb Ajibola.
Artificial Neural Network (ANN) has been employed by researchers in obtaining accurate estimates of evapotranspiration rate. Generalized Regression Neural Network (GRNN) and Feed Forward Back Propagation Neural Network (FFBP NN) were used to estimate evapotranspiration rate in Kano State, Northern Nigeria to ascertain its modelling accuracy under less input parameters. A 25-year monthly - time step of climatological data was collected from IITA (International Institute of Tropical Agriculture) station. The data was grouped into 12 different input combination with training and validation sets. GRNN results indicate the lowest performance ranking as the lone solar radiation input combination (GRNNSr) having R = 0.3603, R2 = 0.1298, MSE = 1.4356, RMSE = 1.982...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5889

Effect of thickness and pre-treatment on drying kinetics of cocoyam
Provedor de dados: 111
Autores: Oyefeso, Babatunde Olayinka; Raji, Abdulganiy Olayinka.
Cocoyam (Xanthosoma sagittifolium) corms and cormels are among the staple foods in Nigeria. The cormels are processed into cocoyam flour and utilized for various purposes. Drying is an essential unit operation in the conversion of the cormels into cocoyam flour and the knowledge of the effect of drying variables on the drying characteristics of the cormels is necessary for analysis, optimization and control of the drying process. This study therefore, investigated the drying kinetics of cocoyam cormels as influenced by slice thickness and pre-drying treatment. White-fleshed (NXs. 001) and pink-fleshed (NXs. 002) cocoyam cormels were used for this study. Drying kinetics of the pre-treated cormels (blanched by soaking in hot water at 100o C for 5 minutes)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocoyam cormels; Drying process; Pre-drying treatment; Falling rate period; Thin layer drying.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4181

Mathematical modelling of fluted pumpkin seed drying kinetics
Provedor de dados: 111
Autores: Igbozulike, Augustine O.; Amamgbo, Nnamdi; Oyinloye, G. M.
In this study, the drying characteristics of fluted pumpkin seeds were examined at hot-air temperatures of 50ºC, 60ºC and 70ºC and a constant air velocity of 1.5m/s. Two slicing thicknesses, 5mm and 10mm, were used for the experiment. The results revealed that drying took place during the falling rate period. The moisture ratio, drying time, effective diffusivity and activation energy were affected by drying air temperature and slice thickness. Moisture diffusivity was found to increase with an  increase in drying temperature from 6.6 x 10-6 to 28.43 x 10-6 m2/s. Activation energy decreased from 6.72 to 4.02KJ/mol as slice thickness increased from 5mm to 10mm. Drying data were fitted to Page, Modified Page, Henderson &amp;amp; Pabis and Lewis models. All...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5184

Structural suitability of 10-year old Pinus caribaea timber with a forest fire history in farm buildings
Provedor de dados: 111
Autores: ZZIWA, AHAMADA; MUKASA, JOSEPH; KIZITO, SIMON.
Forest fires in Pine and Eucalyptus plantations are common in Uganda especially in the dry periods. In an event of fire gutting a nearly mature plantation, tree farmers usually try to reduce losses by extracting and lumbering the residual trees for use in agricultural buildings. However, there is no empirical data to guide material selection based on strength and structural integrity of the timbers from burnt plantations. Therefore, this study investigated the effect of fires on selected physical and strength properties of timber extracted from a 10-year old stand of Pinus caribaea that had been burnt. Test specimens were prepared and tested for MOE, MOR and compression parallel to the grain using a Testometric AX M500 – 25KN Universal Testing Machine in...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5696

Optimization of ultrasound-assisted osmotic treatment of Aleo vera gel impregnated with grape pomace phenolic compounds using response surface methodology
Provedor de dados: 111
Autores: Azarpazhooh, Elham; Sharayei, Parvin; Ramaswamy, Hosahalli S.
This study was focused on investigating the use of pulsed ultrasound-assisted osmotic dehydration (UAOD) for enhancing the infusion of phenolic compounds extracted from grape pomace (GPx) to Aloe vera (Aloe barbadensis Miller,) gel (AVG) using response surface methodology (RSM) and produce a dehydrated product with high antioxidant content. Fresh AVG were initially immersed in a sucrose solution of 50° B with three levels of GPx (10, 20, and 30 v/v) and subjected to pulsed ultrasound (US) treatment with a probe of 2 cm diameter, two levels of ultrasound amplitude (UA) (50 and 100%), and three ultrasound treatment times (UT) (30, 135 and 210 min). The pulsed on and off times were set at 15 and 1 min, respectively. A multiple regression analysis was carried...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5602

DETERMINATION OF THE CALORIFIC VALUE OF MUNICIPAL SOLID WASTE IN ENUGU, NIGERIA AND ITS POTENTIAL FOR ELECTRICITY GENERATION
Provedor de dados: 111
Autores: NWOKE, OJI ACHUKA; Okonkwo, Wilfred Ifeanyi; Echiegu, Emmanuel Amagu; Ugwuishiwu, Boniface Obinwanne; Okechukwu, Chibueze Henry.
The work aimed at determination of calorific value of  municipal solid waste in Enugu, Nigeria and its potential for electricity generation. Random truck sampling was used according to American Society of Test and Material (ASTM)  in the collection of samples at Ugwuaji landfill site, Enugu, Nigeria and calorific value was determined using oxygen bomb calorimeter. Enugu has a present  population of 882,178 and the amount of municipal solid waste  generated in Enugu was  estimated to be 420 tonnes daily and this resulted in waste generation rate of   0.48kg/capita/day. The average composition of the municipal solid waste  was 39% putrescible, 11% paper, 21% plastics, 5% textile, and 2% metal, 3% glass and 19% others. The average moisture content Volatile...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Municipal solid waste; Calorific value; Composition; Energy content; Electricity.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5061

Micropropagated banana plants induced by gamma irradiation and resistant to the root-knot nematode reproduction
Provedor de dados: 111
Autores: Taha, Rania Abdel-Ghaffar; El-Nagdi, Wafaa M. A.; Kamel, Hedaya Ahmed.
Micropropagation of banana plants has been used successfully in commerce. Banana plantation has a great interest in Egypt due to suitable climate. However, some problems might thwart the plantation progress like the root-knot nematode; Meloidogyne incognita infection which can affect acclimatization and plantation of in vitro plants. Thus, our investigation aimed to produce nematode resistant in vitro plants using gamma radiation (γ). Banana in vitro plantlets were exposed to gamma radiation at several doses then replanted in vitro. Sensitivity of banana plants to irradiation was determined. Acclimatized plants were infected with M. incognita in greenhouse to see their capability for tolerance. Results indicated that irradiated plants could manage the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa sp.; Micropropagation; Gamma radiation; Meloidogyne incognita; Free amino acids.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5500

Selecting key traits to indicrectly assess common bean growth under water stress
Provedor de dados: 111
Autores: Fogaça, Alisson Marcos; Barbosa, Eduardo Augusto Agnellos.
Recognize water stress constraints on common bean growth may help to select tolerant genotypes, manage irrigation based on plant necessity and predict losses. This manuscript aims to select key traits that discriminate magnitudes of water stress on common bean and indicates plant growth constrains. To do so, an experiment was set in a greenhouse with two factors: crop evapotranspiration replenishment and cultivars. First factor was comprised of 25, 50, 75, 100, 125 and 150% of crop evapotranspiration replenishment starting at flowering (32 days after germination). The second factor was composed of the cultivars BRS Estilo and IPR Campos Gerais. A randomized block scheme with five replications was used, totalizing 60 experimental units. On the 55th day...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris L.; Drought stress; Net assimilation of CO2; Canonical discriminant analysis; Crop evapotranspiration.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5869

TECHNICAL INVESTIGATION ON THE METHOD AND CONSTRAINTS ON CASHEW NUTS PROCESSING IN ENUGU STATE
Provedor de dados: 111
Autores: chikwado, ugwu kenneth.
Technical investigation on the method and constraints on cashew nuts processing in Enugu state of Nigeria was carried out and a survey made involving the use of questionnaire and personal interview during the field trips. The aim was to technically investigate the difficulties encounter in cashew nuts processing in Enugu State and suggest the means of improving on the difficulties. The manual and mechanical methods of processing cashew nuts were investigated. From the result of the survey, it was found that majority of cashew nuts processors visited processed the nuts by manual means and only few were processing mechanically.  The results showed that most of the machines from the mechanical processors visited were not functional.  The results of the survey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Technical; Investigation; Method; Constraints; Cashew Nuts; Processing.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5094

Effective Moisture Diffusivity and Rehydration Characteristics of Osmo-air Dehydrated Tomato
Provedor de dados: 111
Autores: Obajemihi, Obafemi Ibitayo; Asipa, Adeola Akorede.
The aim of this study was to investigate the effect of osmotic dehydration on effective moisture diffusivity and rehydration characteristics of osmo-air dehydrated tomato. Sliced tomato samples of Hausa variety of uniform 10 mm thickness were deseeded, blanched at 90oC and immersed in an honey and sugar hypertonic solution under different levels of osmotic concentrations of 20, 30, 40, 50 and 60oBx, temperature of 10, 20, 30, 40 and 50oC and duration of 10, 20, 30, 40, and 50 min. Samples were dried in a hot-air cabinet dryer at 65oC for 10 hours to reach an equilibrium moisture content of 3-5%, which is considered safe for long term storage. The experiment was designed using central composite design (CCD) of response surface methodology (RSM) of Design...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5887

Effects of Electromagnetic Treatment of Irrigation Water on Growth and Yield of Lagos Spinach (Celosia argentae)
Provedor de dados: 111
Autores: Adeniran, Kamoru Akanni; Kareem, Kola Yusuff; Yusuf, Karamarudeen Olaniyi; Afolayan, Stephen O.
The effects of magnetic treatment of irrigation water on growth and yield of potted celosia plants (Celosia argentae) grown inside a screen house were investigated. The study was carried out using Completely Randomised Design replicated five times. Water was allowed to pass through five different flux densities of 719, 443, 319, 124 and 0 Gausses (non – magnetized water). Analysis of selected 25 samples of the magnetic flux density experiment (at 6 WAP) showed that mean stem girth irrigated with ordinary water recorded the highest value of 1.95 mm. Mean leaf area of plants irrigated with magnetic flux density of 719 G had a percentage increase of 24.97 %; mean bulk weight of 172.72 g; biomass weight of 133.48 g; and root weight of 39.24 g, when compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Celosia argentae; Growth; Yield and magnetic treated water.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5697

Design and Performance Evaluation of an Improved Solar-Biomass Greenhouse Dryer for Drying of Selected Crops in Western Kenya
Provedor de dados: 111
Autores: Ndirangu, Samuel Njuguna.
Solar drying systems are not able to achieve best drying rates given the intermittent nature of solar energy and poor airflows. To address this problem, a solar-biomass dryer measuring 8 m long, 4 m wide and 2.6 m high, with two layers of beds, was developed for use by medium scale processors in Kenya. It had a bimodal biomass heating system to back up the solar energy, and four provisions for air ventilation; chimney, turbo ventilators, lower opening and fans. It was constructed and preliminary tests on it undertaken at Khwisero in Kakamega County, Kenya. Six commonly grown crops; arrow roots (Maranta arundinacea), cassava (Manihot esculenta), sweet potatoes (Ipomoea batatas), kales (Brassica oleraceae var acephala), bananas (Musa spp.) and spider plant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solar-biomass; Greenhouse dryer; Ventilation; Performance.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5644

Physico-mechanical and Chemical Properties of President Plum Affected by Aminoethoxyvinylglycine (AVG) Treatment and Maturity Stages
Provedor de dados: 111
Autores: Altuntaş, Ebubekír.
In the study, effects of aminoethoxyvinylglycine (AVG) treatment and maturity stages on physico-mechanical and chemical properties of fruit of plum fruit (Prunus domestica cv. ‘President’) was investigated. The effect AVG doses for each maturity stage on geometric mean diameter and surface area of plum fruit was statistically significant. Geometric mean diameter and surface area were higher on 4 August harvest date than the other harvest dates. The effect AVG doses on the fruit volume and fruit mass of plum fruit were statistically significant for each maturity stage. While L*, b*, and C* color characteristics of plum fruit for all AVG treatments increased according to maturity stages. The effect of AVG treatments on the fruit removal force (FRF) and fruit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bulk density; Geometric mean diameter; Colour; Fruit removal force; SSC.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5674

Assessment of the suitability of land use for agriculture by analytical hierarchy process : AHP in lower Prachinburi watershed, eastern Thailand
Provedor de dados: 111
Autores: Rukanee, Duangthip; Sangchan, Songvoot; Choomjaihan, Prasan.
       The low Prachinburi watershed is a gateway to other regions of the country.  Due to a rapid increase in population there, there is also an increase in agricultural production area.  This study aims to assess the appropriateness of land use by using analytical hierarchy process (AHP) for land use planning.            Results of the study revealed that there is a moderate level of the appropriateness in land use development.  The most appropriate area (S1) accounts for 22.07 percent; the moderately appropriate area (S2) accounts for 54.15 percent; the lowly appropriate area (S3) accounts for 10.25 percent; and the inappropriate area accounts 13.52 percent of the area.  Regarding a guideline for agricultural area management, it is found to be mostly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land suitability; Analytical hierarchy process; Watershed; Assessment; GIS.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5751

Application of the Response Surface Method in the Analysis of Ohmic Heating Process Performance in Sour Orange Juice Processing
Provedor de dados: 111
Autores: Azadbakht, Mohsen; Vahedi Torshizi, Mohammad; Kashaninejad, Mahdi.
Three voltage gradients (8.38, 10.83, and 13.33 V cm-1) and three weight loss percentages (10, 20, and 30 percent) were examined; also the system performance coefficient, input current, heating process duration, power consumption and electrical conductivity investigated. The response surface method was also used for modeling s and optimization. For the response surface method, weight loss percentage and voltage gradient were selected as independent variables; and factors  system performance coefficient, heating process duration, input current, power consumption and electrical conductivity were selected as responses. According to results, all obtained models were significant for responses factors, but the voltage gradient and weight loss percentage were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sour orange juice; Ohmic method; Response surface method; Modeling.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6057

Influence of Deficit Irrigation and Nitrogen Fertilization on Potato Yield, Water Productivity and Net Profit
Provedor de dados: 111
Autores: Elmetwalli, Adel Helal; Elnemr, Moataz K.
Potato is described as a sensitive crop to short periods of irrigation deficit and Nitrogen deficiency.  Farmers usually use excessive amounts of irrigation water and fertilizers to obtain higher yields. Recently, there is a shortage of water resources and therefore it is fundamentally important to employ better irrigation and fertilization management of such crops. A field experiment was undertaken to assess the effects of irrigation regime and Nitrogen fertilization on potato tuber yield, Chlorophyll content and irrigation water productivity of potato crop. Four levels of applied water 1.25, 1.00, 0.75 and 0.50 of the crop evapotranspiration (ETc) were examined with three amounts of Nitrogen (N) 50, 125, and 200 kg ha-1.  The results clearly demonstrated...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5849

Modification and performance evaluation of a dual-function okra processing device
Provedor de dados: 111
Autores: BELLO, SEGUN RAPHAEL.
The performance evaluation of a dual-function device for slicing and drying Okra developed at the Federal College of Agriculture, Ishiagu Nigeria was carried out and reported.  The device was designed to slice and dry okra in one single-sequence operation. The physical characteristics of crop sample were investigated, characterised and processed in the device to determine their performance under steady state process conditions. The effects of the modified machine on crop processing were also investigated. The results shows that the mean equivalent diameters for each okra sample categorized as A, B and C are; 24. 54mm, 19.20mm and 15.79mm respectively. The slenderness ratios and sphericity determined for each of the three samples were; 3.04, 3.11, 2.79 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural engineering Okra; Slicing; Drying; Efficiency; Sphericity; Device.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5670

Simulated effect of wetting/drying periods for two textural soils amended with biochar at a catchment scale
Provedor de dados: 111
Autores: Villagra-Mendoza, Karolina; Carvajal-Vanegas, Dorian; Beck-Broichsitter, Steffen; Horn, Rainer.
Biochar is considered as an option to ameliorate soil functions, by improving soil physical and hydraulic soil properties. This study investigated the effect of biochar and of wetting and drying cycles on the water infiltration at laboratory and at a hypothetical watershed scenario. In the laboratory, test samples with 2.5 and 5% (by dry mass) of a mango-wood biochar were added to a sandy and sandy loam soil material. Cumulative infiltration was determined after simulated intense wetting and drying cycles, by drying the samples at 30°C for three consecutive days. Additionally, biochar amended soil hydraulic parameters, obtained at the laboratory, were used to simulate the water discharge of a hypothetical watershed, with the Soil and Water Assessment Tool...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infiltration; Watershed; Biochar; Surface runoff; Wetting; Drying.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5562

Characterization of Torrefied Biomass Pellets from Agricultural Residues for Solid Fuels
Provedor de dados: 111
Autores: HOMDOUNG, NIGRAN.
Torrefaction and densification are suitable techniques for upgrading solid biomass materials. They can improve the energy properties of solid fuels. The objective of this research was to evaluate changes in physico-chemical properties of agricultural residues (corn-cobs and rice husks) during torrefaction. Physical properties of the torrefied biomass pellets were analysed. The results showed that increasing the torrefaction temperature and time resulted in reduced moisture and volatile matter content of corn-cobs and rice husks. At the same time, fixed carbon, ash content and heating values were increased. The heating values of both torrefied fuels were in the range of 14.9–16.9 MJ/kg, increased by about 16 to 22% from the raw biomass. The optimum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural residues; Torrefaction; Densification; Torrefied biomass; Solid fuels.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5741

Development of GIS Toolbar to Estimate Reference Evapotranspiration and Net Irrigation Requirement on Raster Based Approach
Provedor de dados: 111
Autores: Maza, Minotshing; Bandyopadhyay, Arnab; Bhadra, Aditi.
An ArcGIS toolbar was developed with the help of ArcObjects within ArcGIS environment to estimate evapotranspiration (ET) and net irrigation requirement (NIR) on raster based approach. The toolbar can estimate ET on a daily or monthly basis either with Hargreaves and Samani method or FAO56-PM method and calculate the corresponding NIR on a monthly basis. The toolbar was tested using normal monthly meteorological data (maximum temperature, minimum temperature, relative humidity, wind speed, solar radiation and rainfall) collected from 133 India Meteorological Department (IMD) stations covering 19 agro-ecological regions from 1971–2000. These point meteorological data were interpolated using ordinary kriging method and resampled at 1 km spatial resolution to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Evapotranspiration; Net irrigation requirement; ArcObjects; Raster; FAO-56 PM; Hargreaves and Samani.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5765

Engineering properties of acha (Digitaria exilis) grains in relation to the design of grain processing machines
Provedor de dados: 111
Autores: BAKO, TANKO; GARBA, ANEBI JOSEPH.
Engineering properties are very important in the design and manufacturing of processing machines. In this research work, the engineering (physical, aerodynamic and mechanical) properties of acha (Digitaria exilis) grains were determined as design parameters for the development of grain processing machines for the crop. The physical properties determined were length, width, thickness, arithmetic mean diameter, geometric mean diameter, roundness, sphericity, aspect ratio, surface area, projected area, volume, moisture content, one thousand seed weight, bulk density, true density and porosity. The average seed length, width and thickness were found to be 1.84 ± 0.055, 0.85 ± 0.023 and 0.75 ± 0.042 mm respectively. The average arithmetic and geometric mean...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acha; Physical; Aerodynamic; Mechanical; Processing machines.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5573

Electrohydrodynamic drying of kiwi (Actinidia Chinensis) slices
Provedor de dados: 111
Autores: Rezaee, F.; Esehaghbeygi, Ali; Mirhosseini, M.; Alemrajabi, A. A.
Electrohydrodynamic (EHD) enhanced drying of kiwi slices using multiple point-to-plate electrode arrangements under a DC voltage was carried out in an experiment to compare with those of oven drying at 60 ºC and ambient-air at 25 ºC. The EHD was run at high electric field of 375 V mm-1 using thirteen ionizing needles to a plate electrode. The effects compared included drying rate, temperature, energy consumption, color, and shrinkage. Samples dried by the EHD and oven showed nearly the same values of moisture content whereas that of the air-dried sample was 3.5 times higher at the end of a 7-hour drying. The sample subjected to EHD preserved the same temperature during the drying. Compared with oven drying, EHD’s energy consumption was negligible. EHD and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: EHD; Non-thermal; Drying rate; Color.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5036

Effect of salt stress on physiology and agronomy characterstic of barley cultivars
Provedor de dados: 111
Autores: sorkhi, farshad.
In most northwest provinces of Iran such as West Azarbaijan province, soil salinity is a growing problem, particularly in irrigated agricultural areas, and has been found to reduce barley yield, dramatically. To investigate the effect of sodium chloride on two barley (Hordeum vulgare) cultivars, four levels of salinity: 0, 4, 8 and 12 dS/m, were employed as a factorial experiment arranged in a completely randomized design with three replications in a controlled environment of the greenhouse during 2017-2018. The results indicated that increasing salinity from 0 to 12 dS/m, decreased the emergence percentage significantly. Two cultivars of Zarjoo and Valfajr responded differently to salinity, so that Zarjoo showed a significantly higher emergence rate. This...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emergence; Potassium; Proline; Salinity; Yield components.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5855

Performance of SRI Rice Growth on Soil Accustomed to Conventional Cultivation Methods
Provedor de dados: 111
Autores: --, Ardiansyah --; Arif, Chusnul; Hardanto, Afik; Mustofa, Asna; Nishida, Kazuhiro.
The aim of this research are to compare actual evapotranspiration among SRI Paddy Cultivation with different treatment of fertilizer and soil amendment, and to examine SRI growth with fertilizer and soil amandement treatment in soil accustomed to conventional cultivation method. This research was conducted at the screen house of Agricultural Technology Laboratory of Universitas Jenderal Soedirman, Purwokerto, during December 2016 until April 2017. The data were collected from 4 experiment pots with different treatments. Soil were taken from the paddy field that usually practice conventional method (flooded irrigation, chemical fertilizer).  First pot  were added with organic fertilizer with dose of 100 ton/ha (SO). Second pot were added with organic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: System of Rice Intensification (SRI); Conventional cultivation method; Organic fertilizer.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5749

Requirements of mixed tangerine (Citrus tangerine) and pineapple (Ananas comosus) powdered peel wastes fermentation for citric acid production
Provedor de dados: 111
Autores: Kumar, Prasanna GV; Paul, Sanjib Kumar; Khobragade, Chetan B; Bania, Bhargav Kumar; Sengupta, Debopriyo Kumar.
In this study, mixed substrate submerged fermentation of fruit peel wastes for the production of citric acid is reported. Powders of the peel wastes of tangerine and pineapple were used as substrates. Methanol (1-3% w/w) and sucrose (5-15% w/w) were supplemented in the fermentation media (pH on the range of 2.0-6.0) with moisture content of 90% (wet basis). Effect of substrate mix, pH of the media, methanol and sucrose concentrations on the yield of citric acid was studied, and their optimal levels for the maximum yield of citric acid were identified based on Taguchi method.  Methanol as stimulant in the medium and ratio of substrates in the mix had the highest influence on the yield of citric acid.  Fermentation media with tangerine and pineapple peel...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromatography; Kinetics; Mixed substrate fermentation; Optimization; Synergism; Taguchi method.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5487

Water Total Factor Productivity Growth of Rice and Corn Crops Using Data Envelopment Analysis – Malmquist Index (West Timor, Indonesia)
Provedor de dados: 111
Autores: Koehuan, Jonathan; Suharto, Bambang; Djoyowasito, Gunomo; Susanawati, Liliya.
This study aims to estimate staple food water productivity based on crop water use and subsequently aimed to analyze the total factor productivity growth using DEA-MI methods. The secondary panel data from 2000-2015 regarding climate data, main food harvested areas and main food production were applied. The results show that despite higher dependencies on rainwater, staple food production used a small part of the volume. Staple food water productivity showed a fluctuation and positive trends, falling in the range of global estimates but still below the upper value. The single input-single output analysis showed that the mean annual TFP growth of WPPaddy and WPCorn was positive, mainly due to technology change (TEC) rather than the decrease in efficiency...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop water; Data envelopment analysis; Malmquist index; Water productivity.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5881

Optimization of Pressurized Liquid Extraction of Essential Oil from Citrus Sinesis Peels.
Provedor de dados: 111
Autores: Olabinjo, Oyebola Odunayo; Olabinjo, Oyebola Odunayo; Ogunlowo, Agboola Simeon; OLIVEIRA, Alessandra Lopes; KAMIMURA, Eliana Setsuko.
Optimization of extraction of essential oil from Citrus sinesis (sweet orange) peels by Pressurized Liquid Extraction (PLE) was performed using response surface methodology (RSM). In order to obtain the maximum yield of essential oil, a two-factor Central Composite Design (CCD) experiments were conducted using extraction variables; temperature 46 - 70 ᵒC and static extraction cycles time 30 - 60 min. Subsequently the total phenolic content and antioxidant property using DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid)) of essential oil was evaluated. The Response Surface analysis gave 70 °C and 60 min static extraction cycle time as the optimal condition to achieve the maximum yield of essential oil,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sweet orange peels; PLE; Essential oil; Antioxidant.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5541

Developing a mixed solar drier for improved postharvest handling of food grains
Provedor de dados: 111
Autores: DHANDE, HIMANSHU KISHOR; SHELARE, SAGAR DNYANESHWAR; KHOPE, PRAVIN BALKRUSHNAJI.
Drying of grain is usually achieved by spreading grains on earth for solar radiation. This technique is moderate, but being unsecured from a downpour, dust, invasion of bugs, rodents, and distinct animals, items might be severely degraded to the degree that occasionally becomes contaminated and issued loss of nourishment excellence. To defeat this, solar drying is the greatest assuring technique for the protection of agricultural commodities. In the proposed research, the low-cost mixed-mode solar dryer was developed (Workshop of Dr. D. Y. Patil Institute of Technology, Pimpri, Pune, Maharashtra, India) using locally accessible, environmentally friendly materials, and the performance was evaluated. The solar dryer was developed using the components like a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solar drying; Mixed-mode; Grains; Performance evaluation; Experimentation; Postharvest drying.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6049

Mathematical modeling of mechanical horizontal screw oil extractor
Provedor de dados: 111
Autores: BAKO, TANKO; ENYI, OBETTA SAMUEL; IMOLEMHE, UMOGBAI VICTOR.
A theory using mechanical expression was proposed from the physics of oil expression in a screw press to characterize a mathematical model. The general oil expression equation was solved for three machine parameters (choke clearances, screw shaft clearances and screw shaft speeds) which simulate the machine parameters effects in the overall screw expeller process. The mathematical model was validated by the experimental data obtained from pressing fish oil with a screw press, using regression analysis. The experimental oil extraction data was fitted to the model and the quality of fit evaluated. A good fit was indicated by correlation coefficient of 0.9983, coefficient of determination of 0.9967, absolute average percentage deviation of 4.8 %, coefficient...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mathematical; Model; Extraction; Parameters.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5521

Optimization of Process Variables for Osmo- freeze drying  of Strawberry Slices Using Response Surface Methodology
Provedor de dados: 111
Autores: KUMAR, VISHAL.
The production of high-quality Osmo freeze-dried strawberry slices was studied by response surface methodology. The osmotic treatment and experiment were conducted according to Box-Bohnken Design. The low and high levels of the process variables were 40% (w/w) and 60% (w/w) for sucrose concentration of osmotic solution; 2 and 4 mm for slice thickness and - 10 and -30 0C for operating temperatures in freeze dryer. Responses studied comprised final moisture content (M), colour Index (L), water activity (aw), rehydration ratio (RR) and overall acceptability (Oa). It was found that effects of all the process variables were significant on all responses. Optimum conditions (desirability = 0.692) obtained by numerical optimization were 51% sucrose concentration;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osmotic; Freeze; Rehydration; Hardness; Colour; Water activity.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5587

Crop water requirements, biomass and grain yields estimation for upland rice using CROPWAT, AQUACROP and CERES simulation models
Provedor de dados: 111
Autores: Akinbile, Christopher Oluwakunmi.
This study estimated crop water requirements using CROPWAT while AQUACROP and CERES models evaluated performance in simulating biomass and grain yield of upland rice’s response to different irrigation schedule. NERICA 4 was subjected to five treatment given as: full (100%ET), good (80%ET), medium (60%ET), average (40%ET), and low (20%ET) and three replicates in a randomized block design. It was planted at the farmyard of the International Institute of Tropical Agriculture (IITA) Ibadan, Nigeria for two seasons 2015 and 2016 and the results of the first season was used in model calibration while second season’s result was used in validation. Biomass and grain yields values were obtained and compared with simulated values from AQUACROP and CERES and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NERICA 4; Water requirements; Yield; Simulation models; Irrigation schedule.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5636

Analysis of energy uses in cassava production in North-Central Nigeria
Provedor de dados: 111
Autores: Adekanye, Timothy Adesoye.
Energy inputs and yield relationship in cassava production was investigated to establish correlation between inputs and output in cassava production in Nigeria. Production data of energy inputs and crop yields were collected from 54 cassava farms in twelve cassava producing villages through site visits, interaction with the farmers and physical measurements for three production seasons (2013-2016). The data were analyzed statistically. Amount of inputs per hectare were calculated and multiplied by coefficients of energy equivalents. Total energy inputs in cassava production in this study was 36,482.8 MJha-1 while average output of cassava tubers was 32, 022.6 kgha-1. Energy use ratio, energy productivity and specific energy of the surveyed farms were 4.9,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agriculture; Energy ratio; Cassava; Output; Cobb-Douglas.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5659

Effects of electromagnetic irrigation water on lagos spinach evapotranspiration using lysimetric method
Provedor de dados: 111
Autores: Kareem, Kola Yusuff; Adeniran, Kamoru Akanni.
The study was conducted to determine the effect of magnetic treatment of water on the evapotranspiration of Lagos Spinach – simply called Celosia, at different growing stages up until harvest, with varying magnetic flux densities and non – magnetic water as the control experiment. Flux densities of T1 = 719 G using 12 V terminal, T2 = 443 G using 8 V terminal, T3 = 319 G using 6 V, T4 = 124 G using 4 V and T5 = 0 G (control) obtained from the electromagnet, were used in treating irrigation water. Equal volume of water (1.3 litres) was used to irrigate the plants every irrigation session. Each treatment was replicated ten times to make a total number of 50 buckets of celosia plants laid out in a Completely Randomized Design (CRD) layout. Celosia seeds were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Celosia; Electromagnet; Evapotranspiration; Irrigation; Screenhouse; Lysimetric method; Magnetically-treated.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5699

Evaluation of Kansei Engineering-based Sensor for Agro-industry (KESAN)
Provedor de dados: 111
Autores: Ushada, Mirwan; Khuriyati, Nafis; Agustriana, Silvia; Okayama, Tsuyoshi.
This paper highlighted evaluation of a device for workload monitoring named as Kansei Engineering-based Sensor for Agro-industry (KESAN). As a newly developed device, usability and performance factors have not been evaluated on KESAN. The research objectives were: 1) To evaluate the usability of KESAN as an appropriate technology; 2) To evaluate the performance of KESAN for the workload monitoring device. Usability was evaluated by 30 selected manager of small medium-sized agro-industries in Yogyakarta Special Region. Usability evaluation indicated most attributes were accepted by the manager. Device performance was evaluated on 9 (Nine) selected workers from fish processing, crackers, and bakery industry. 7 (Seven) workers were evaluated on consecutive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agro-industrial Technology; Biosystems Engineering; Ergonomics and Human Factors Appropriate technology  performance  usability  worker  workload monitoring.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5595

Adaptation of a Brush Cutter for Kenaf (Hibiscus cannabinus) Harvesting
Provedor de dados: 111
Autores: Falana, Olumide Babatope; Aluko, Olabanjo Bankole; Adetan, Dare A; Osunbitan, Jimmy Akinfemi.
The adaptation of some existing technologies such as sugarcane-type harvester, jute/reed-type harvesters and forage harvesters for kenaf harvesting has not been successful. These machines apart from being expensive cut kenaf stems into too short fragments. Information regarding machines for kenaf harvesting is rarely found in the literature. In this work, an existing 1.65 kW brush cutter was modified and adapted for kenaf harvesting with the view to developing a low-cost machine for kenaf harvesting. The modifications made include incorporating a suitable metal guard based on the physical properties of kenaf stem and selection of an appropriate serrated blade cutting mechanism. The machine was tested on an experimental field of 3 and 4 months old kenaf...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Kenaf harvesting; Modified brush cutter; Performance evaluation.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5567

IDENTIFICATION OF PUDDLING SETTLING PERIOD OF VARIOUS SOIL TEXTURE FOR MECHANICAL RICE TRANSPLANTING
Provedor de dados: 111
Autores: Al Mamun, Muhammad Rashed; Islam, Md. Amirul; Lucky, Afroja Kabir; Hossen, Md. Anwar.
Primary satisfaction in seedling transplanting is a successful procedure of transplanting with mechanical rice transplanter. For rice cultivation puddling is generally done for a better transplanting. The study was conducted to characterize the optimum puddling settling period for various soil texture. The plots were prepared by following all the possible operations to provide a favorable field condition. Each plot was transplanted at eight different times for settling period of four to thirty two hours in clay, sand and silt textured soil. Primarily 76 hills in each plot, average planting depth 6 cm and seedlings density was found seven from each field. The transplanting performance character was found in different values. It was observed that percentage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Transplanting; Puddling; Settling period; Texture; Optimum; Yield.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6043

Energy Input and Output Analysis of Sweet Orange Production in Nigeria
Provedor de dados: 111
Autores: Clement, Ogunlade Adesoji; Simeon, Jekayinfa Olayinka.
The study was undertaken to investigate the energy input and output of a group of citrus research farms in Nigeria. Data used in this study were collected in-situ on yearly basis; therefore the analysed and discussed energy values were averages of data collected over the years. The research results indicated that total energy inputs were 46.64 GJha-1. About 35% was generated by human labour, 38% from diesel oil and machinery, while other inputs contributed 29% of the total energy input.  About 87% of the total energy inputs used in sweet orange production was from direct sources (seeds, fertilizers, manure, chemicals, machinery) and 13% was from indirect sources (human labor, diesel). Mean orange yield was about 41000 kg ha-1.  The net energy and energy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy sources; Energy use indices; Sweet orange.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5600

Performance evaluation and optimization of the maize shelling operation of the multi-purpose farm vehicle
Provedor de dados: 111
Autores: Kabenge, Isa; Nsubuga, Denis; Zziwa, Ahamada; Kiggundu, Nicholas; Wanyama, Joshua; Banadda, Noble.
Small-scale farmers register high postharvest losses partly due to failure to carry out primary processing operations. Most of the maize shellers on the Ugandan market lead to high percentage of broken maize grains thus raising the risk of aflatoxin infection during storage. In this study, the operation of an existing maize sheller on the market with a shelling speed of 870 rpm for maize at 13 % moisture content was tested. The main objective of this study therefore was twofold; (i) to develop and evaluate a maize sheller and (ii) to optimize the multi-purpose vehicle shelling operation. The improved maize sheller was designed, fabricated, evaluated and optimized using a factorial experiment with shelling speed and moisture content as the main effects at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Maize Shelling; Multipurpose vehicle; Physical properties; Engineering properties.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5873

Investigation of Harvesting Track and Heading Change of Paddy Harvester using Geo-referenced Data
Provedor de dados: 111
Autores: Ali, Md. Rostom.
Global Positioning System (GPS) is a global navigation satellite system that provides geo-location and time information to a GPS receiver anywhere on or near the Earth. Machine operation track, turning pattern, effective time of field operation, field capacity, field efficiency, machine idle time, etc. can be evaluated precisely by using geo-referenced data recorded by a GPS receiver during field operations. Highly precise GPS receivers are expensive and unaffordable for farmers and farm operators in Bangladesh. Keeping this in mind the scope of an affordable and easy to handle GPS receiver was explored in the study. A GPS receiver was used to record the data generated by combine harvester and mini combine harvester during harvesting. Data were recorded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: GPS; Combine harvester; Mini combine harvester; Harvesting; Harvesting track; Heading changes.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5512

Biodegradable film from wild taro Colocasia esculenta (L.) Schott starch
Provedor de dados: 111
Autores: tuates, andres MORALES.
The challenge today is to develop a biodegradable packaging material to partially substitute the conventional plastic. Biodegradable plastics made from starch-based are more environmental friendly and degrade faster than the traditional plastics. This study aimed to produce and characterize a biodegradable film from Colocasia esculenta (L.) Schott starch and glycerol plasticizer. Two levels of taro starch (5g and 10g) and three percentage of glycerol (2%, 3%, and 4%) were used in the production film.Results showed that taro  and glycerol based biodegradable film obtained a lowest density, water absorption and thickness swelling of 0.98 g/cm3, 51.53% and 9.29%. The highest tensile strength and elongation obtained are 9.51 MPa and 21.60%. After one week of...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4085

Continuously measurement of the dry matter content using near-infrared spectroscopy
Provedor de dados: 111
Autores: Mostafa, Ehab; Roesmann, Maren; Maack, Christian; Buescher, Wolfgang.
Near-infrared spectroscopy (NIRS) was used in agriculture and food chemistry in the early 1960s. NIR is located at a wavelength range between 800 nm and 2,500 nm. Although NIRS technology is a rapid, repeatable, highly precision and environmentally friendly technology for recording of spectra without destroying the samples, it is a complex method and the spectrometer calibration with a validated primary reference analysis is required. This study aimed at testing the suitability of NIRS for documenting the dry matter (DM) content of the stored silage in plastic bags. Accordingly NIRS sensors were installed in a commercial silo bagging machine after preliminary experiments in small scale were done. Maize and grass silage DM content was detected continuously...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Near-infrared spectrometer; Maize and grass silage; Dry matter content; Bagging machine.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5455

Physical and Mechanical Properties of Sweet Corn Plant
Provedor de dados: 111
Autores: Hommood, Momtaz Isaak; Yahya, Azmi; Razif, Muhammad; Mat, Nazmi.
Physical and mechanical properties are important issues to be studied due to its importance in the design of agricultural equipment and its relationship to the production operation. The average physical properties for weight, length, diameter, volume, porosity, repose angle, and angle of friction of sweet corn cobs and some of their components were measured. Moreover, the average mechanical properties for pulling force at three different angles ( 0,  45 and 90 )degree where at 90 degree gave the lowest value of pulling force of corn cobs which was 51.14± 1.97 N, compression force at vertical 497.56± 63.14 N; at horizontal 2801.26± 346.10 N, shearing force at two different angles ( 0 and 45 ) degree where at 45 gave the lowest value of shearing force of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Physical properties; Mechanical properties; Shearing force; Penetration force; Sweet corn.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5306

DEVELOPMENT OF A MODIFIED PALM-NUT CRACKER
Provedor de dados: 111
Autores: Alade, Eyitope Israel; Koya, Olufemi Adebola; Omidiji, Babatunde Victor.
This study examined the major shortcomings of conventional crackers, and developed a modified palm-nut cracker with the view of reducing the level of mechanical kernel damage. Equation relating the required speed for cracking operation and force requirement in fracturing the nut was expressed, and the force was experimentally determined before machine development. The machine was designed and fabricated based on standard engineering principles for part-sizing and selection of materials. The machine was tested with dura nuts classified into four groups of sizes and varied during experimentation. The performance evaluation of the machine show that cracking efficiency ranged between 86.10-97.27% at an average value of 4.49% kernel breakage and whole kernels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanical Engineering; Agricultural Engineering Palm-nut cracker  nut cracking  feed rate  cracking efficiency  performance evaluation.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5466

Economic analysis in mechanized production of Khoa
Provedor de dados: 111
Autores: Chodisetti, someswara Rao.
India is the world’s largest producer of milk and dairy products, accounting for about 13% of world’s total milk production. Milk is perishable in nature, thus it cannot be stored for a long period. In order to preserve it, more than half of milk produced in India is converted into a variety of traditional value added milk products. Khoa is a concentrated milk product of great commercial importance and it is an essential ingredient for preparation of variety of indigenous milk based sweets. In the present study, economical analysis in mechanized production of Khoa was carried out. The quality of raw milk was analyzed using Lacto scan milk analyzer. Steam jacketed pan (200 liters capacity) was used for production of Khoa. Uniform steam pressure of 1.5...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4248

Efficacy of Low-cost Activated Carbon in the Removal of Active Compounds in Pharmaceutical Industrial Wastewater
Provedor de dados: 111
Autores: Ijaola, Opololaoluwa Oladimarun.
Pharmaceutical wastes are emerging organic contaminants, mostly unregulated and on the increase. This study evaluates the potential of low-cost activated carbons derived from bamboo in remediating Pharmaceutical actives contaminants (PhACs) and compared with Oclansorb. Two species of bamboos were processed into activated carbons using ZnCl2, KCl, and H3PO4. Selections of the bamboo adsorbents were based on porosity and surface area using BET analysis. Batch adsorption process was used with contact time as bench mark for comparison. Carbonized Bambusa vulgaris (CBV350OC H3PO4) has the highest surface area (SPAS) of 30.1342 m2/g when compared to other adsorbents while carbonized Oxythenantera abyssinica  (COA 350OC KCl) gave the highest pore size (AAPW)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pharmaceutical actives contaminants; Adsorbent; Carbonized Bambusa vulgaris; Carbonized Oxythenantera abyssinica; Industrial Wastewater.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5731

Nutrient, antioxidant and anti nutrient composition of value added products made with underutilized forest produce Bay leaf (Cinnamomum tamala)
Provedor de dados: 111
Autores: KUNA, APARNA; Sahoo, Manas Ranjan; Mandarapu, Sowmya; Mayengbam, Premi Devi; Dasgupta, Madhumita; Mulinti, Sreedhar.
This study made an attempt to develop value added products (bay leaf tea powder, bay leaf saffron tea powder, bay leaf basil tea powder, bay leaf mint sparkle powder, bay leaf spice cubes and bay leaf spice mix) with underutilised forest produce bay leaf. The developed products were evaluated for sensory acceptability and best  acceptable products (bay leaf tea powder and bay leaf spice cube) were evaluated for nutrient, antioxidant and anti nutrient composition in comparision with fresh bay leaf. The results indicated that bay leaf tea powder was rich in ash (18.67 ± 1.21) and protein (12.91 ± 0.81) content and bay leaf spice cube was rich in crude fiber (10.50 ± 2.79) content. Highest amount of proline (4.15 ± 0.11), phenols (8.73 ± 0.10), ascorbate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bay leaf; Value addition; Underutilized; Processing; Nutrition.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5508

Trend Analysis of Reference Evapotranspiration; Case Study of Asaba and Uyo, South-South Nigeria
Provedor de dados: 111
Autores: Alabi, Habeeb Adedotun; Ewemoje, Temitayo Abayomi; Umego, Okwunna Maryjane.
Temporal trend analysis of monthly mean RET estimates using FAO-56 PM model was performed using the Non-Parametric Mann-Kendall (MK) and Sen’s test for Asaba and Uyo over the period of 41 and 35 years respectively. In Asaba, reference evapotranspiration (RET or ETo) showed an overall increasing trend ranging from MK Z values of 0.80 to 2.93 except for June (-0.75) and September (-1.16) which declined insignificantly. For Uyo, RET showed an insignificant decreasing trend (P&amp;gt;0.1) with MK Z values ranging from -0.09 to -1.65 except for November (0.91) which insignificantly increased at P&amp;gt;0.1. For detailed evaluation of the trends, RET was separated into aerodynamic and radiation terms and their trend analysis were performed. In Asaba, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reference Evapotranspiration (RET); Trends; FAO-56 PM Model; Mann-Kendall; Sen; Meteorological.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5859

Milk production systems in Southern Brazil
Provedor de dados: 42
Autores: TELLES,TIAGO S.; BACCHI,MATHEUS D.; COSTA,GUSTAVO V. DA; SCHUNTZEMBERGER,AMANDA M.S.
Abstract  The aim of this study was to verify the dynamics of milk production in Southern Brazil, analyzing the spatial distribution, evolution and structure of bovine milk production systems in the dairy-specialized microregions. To this end, annual data from 2000 to 2015 are drawn from the Municipal Livestock Survey, reported by the Instituto Brasileiro de Geografia e Estatística, and the Programa Nacional de Fortalecimento da Agricultura Familiar, reported by the Banco Central do Brasil. Location quotient analyses, principal component analyses and clustering analyses are applied. Results of the location quotient analysis indicate that, of the 94 microregions in Southern Brazil, 36 are specialized in milk production. Two principal components were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Spatial analysis; Agricultural economics; Regional development.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101201

Effect of host and environment-related factors on fleas of the pichi, an armadillo from Argentina
Provedor de dados: 42
Autores: EZQUIAGA,MARIA CECILIA; RIOS,TATIANA A.; ACTIS,ESTEBAN A.; CASSINI,GUILLERMO H.; ABBA,AGUSTIN M.; SUPERINA,MARIELLA.
Abstract  The pichi (Zaedyus pichiy; Cingulata: Chlamyphoridae) is an armadillo whose ectoparasite fauna is composed of ticks and fleas. Fleas were collected from 218 pichis in southern Mendoza, Argentina, in summer and winter of 2015 and 2016. Prevalences were analyzed and differences in the intensities of the total number of fleas related to host (age, sex, weight, size and physical condition) and environment-related (seasonality and year) factors evaluated. Phthiropsylla agenoris was the only species found. Intensities of fleas were higher in 2015, in juveniles, and in males. Individuals with poor physical condition were more parasitized than those with good or normal body condition. The main explanatory variable was sampling year. This factor was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ENSO; Environmental conditions; Mendoza province; Phthiropsylla agenoris.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000300702

Behavioral response of Biomphalaria glabrataexposed to a sublethal concentration of Euphorbia miliivar. hislopii latex
Provedor de dados: 42
Autores: ALBERTO-SILVA,ANNA CARLA; CUNHA,RODOLFO A.; COSTA,VALDIR A. DA; SANTOS,EVERTON GUSTAVO N. DOS; VASCONCELLOS,MAURÍCIO C. DE; MELLO-SILVA,CLÉLIA CHRISTINA; SANTOS,CLÁUDIA P.
Abstract  The Euphobia milii var. hislopii latex has been tested in the control of schistosomiasis but its action in the locomotor activity of Biomphalaria glabrata is unknown. The objective of this work was to study the locomotor and reproductive behaviors of B. glabrata exposed to E. milii var. hislopii latex. For this, 96 snails were individually exposed to the latex (LC50 - 0.53 mg / L) for 24 hours. The specimens were submitted to biomonitoring for image analysis to record the locomotor parameters at different times: before exposure (control), one day post exposure (group 1 d-p-e) and 30 days post exposure (group 30 d-p-e). The reproductive parameters were recorded weekly for 10 weeks. All locomotor activities of group 1 d-p-e decreased significantly....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behavior; Biomonitoring; Biomphalaria glabrata; Control of schistosomiasis; Euphorbia milii var.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100716

Psychometric analysis of the Tourism Wellbeing Scale (TWS): a multidisciplinary approach
Provedor de dados: 42
Autores: GARCÊS,SORAIA; POCINHO,MARGARINA; JESUS,SAÚL N. DE.
Abstract  This paper analyses the Tourism Wellbeing Scale, a new measure in the tourism sector built from Positive Psychology variables: wellbeing, creativity, optimism, and spirituality. It empathizes the importance of multidisciplinary work and thus it focuses on a psychological approach to understand wellbeing in tourism. The empirical research used Exploratory Factor Analysis (n=429) and Confirmatory Factor Analysis (n=428). Reliability through Cronbach’ Alpha was .874 and evidence of convergent validity was found with the Creative personality scale-short form, Global wellbeing scale, optimism scale, and spirituality scale. A final 8-item structure, with a one-factor solution and confirmatory analysis with: a) Normed Chi-squared (χ2/df) =1.076; b) Root...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Positive Psychology; Tourism; Tourism Wellbeing Scale; Wellbeing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101206

Bryophyte communities across the ecological succession process in the Caxiuanã National Forest, Pará, Brazil
Provedor de dados: 42
Autores: TAKASHIMA-OLIVEIRA,TÁSSIA T.G.; MEDEIROS,PRISCILA S. DE; TAVARES-MARTINS,ANA CLÁUDIA C.
Abstract  Bryophytes play an important role in the process of ecological succession: conditioning the environment favourably for the emergence of subsequent groups. The objective of this study was to investigate the distribution of bryophyte communities in a cronossequence in the Caxiuanã National Forest, Pará, Brazil. To this end, biological material was collected in forest remnants with different successional stages based on regeneration age: Stage I (0 – 10 years), Stage II (10 - 25), Stage III (&gt; 25) and Stage IV (primary forests). Density, richness and composition of species were compared between successional stages and the occurrence of possible indicator-species was investigated. The identified taxa were also classified by guilds of tolerance to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon rainforest; Cryptogams; Forest regeneration; Secondary forest.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100714

Effects of low-intensity pulsed ultrasound exposure on rats tibia periosteum
Provedor de dados: 42
Autores: Batista,Jaqueline Martins; Nakagaki,Wilson Romero; Soares,Evelise Aline; Camilli,José Angelo.
Abstract  The periosteum is a rich source of osteoprogenitor cells and periosteal grafts can be used as an alternative method to replace bone grafts. The low-intensity pulsed ultrasound (LIPUS) has often been used as a noninvasive method to stimulate osteogenesis and reduce the fracture healing time. The aim of this study was to evaluate the effects of the ultrasound exposure on the rat tibia periosteum. Group I (7 animals) received LIPUS therapy on the left tibia for 7 days and group II (7 animals) on the left tibia for 14 days. After euthanasia, the tibias were processed. Number of periosteal cells and vessels and thickness of the periosteum were analyzed. The number of periosteal cells was higher in stimulated periosteum compared to controls at 7 and 14...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tibia; Blood vessels; Periosteal cells; Periosteum; Low-intensity pulsed ultrasound.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100901

Integral transform analysis of radionuclide transport in variably saturated media using a physical non-equilibrium model: application to solid waste leaching at a uranium mining installation
Provedor de dados: 42
Autores: Cotta,Renato M.; Naveira-Cotta,Carolina P.; Genuchten,Martinus T.; Su,Jian; Quaresma,João N.N.
Abstract: The Generalized Integral Transform Technique (GITT) was employed to simulate transient one-dimensional flow in variably saturated porous media, as well as radioactive waste transport within different layers (a solid waste pile, nearby soil, and a granular aquifer) towards the edge of a uranium mining installation under institutional control. Computational codes, written using the Mathematica software system, were implemented and tested for solution of the coupled advection-dispersion equations for an arbitrary number of daughter products within a radioactive chain migrating in saturated and unsaturated soil layers. The computer simulations were verified in great detail against results obtained using the built-in routine NDSolve of the Mathematica...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Uranium mining; Radioactive waste leaching; Unsaturated porous media; Physical non-equilibrium transport; Hybrid methods; Generalized Integral Transform Technique (GITT).
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101102

Acute and chronic toxicity of the benzodiazepine diazepam to the tropical crustacean Mysidopsis juniae
Provedor de dados: 42
Autores: SILVA,ALLYSON Q. DA; NILIN,JEAMYLLE; LOUREIRO,SUSANA; COSTA-LOTUFO,LETICIA V.
Abstract  Pharmaceuticals occur in the environment due to their excessive consumption and the inefficiency of treatment plants to degrade, inactivate or remove them. Diazepam (DZP) stands out as the most consumed benzodiazepine, and induces sedative effects and reduces anxiety. Considering its potential appearance in several environmental compartments, the aim of the present study was to determine the effects of DZP under acute and chronic exposures on the mysid Mysidopsis juniae. Mortality was assessed using an acute toxicity test and a LC50 of 3.7 ± 0.5 mg·L-1was derived. The mass and length of the mysids was recorded in the chronic exposure to test for sublethal effects, and concentrations of 0.25 and 0.5 mg·L-1 of DZP affected mysids length and dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emerging contaminants; Mysids; Sublethal effects; Pharmaceuticals.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100713

Investigating accessibility in Latin American science museums and centers
Provedor de dados: 42
Autores: ROCHA,JESSICA NORBERTO; MASSARANI,LUISA; ABREU,WILLIAN VIEIRA DE; INACIO,LUIZ GUSTAVO BARCELLOS; MOLENZANI,ALINE OLIVEIRA.
Abstract  Science museums are powerful places not only for science communication, informal science teaching, and leisure but also for promoting science and technology in an equitable, diverse, and inclusive mode. The paper presents an overview of accessibility in Latin American science museums and centers, based on a questionnaire comprised of open and closed questions in Portuguese and Spanish. The answers received from directors and other personnel responsible for 109 institutions in twelve countries were analyzed using an accessibility indicator tool. The findings suggest that these institutions generally offer some physical accessibility resources and fewer communicational and attitudinal accessibility resources. Data also show that there is an absence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Accessibility; Inclusion; Science communication; Science museums.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101204

Swimming exercise changed the collagen synthesis and calcification in calcaneal tendons of mice
Provedor de dados: 42
Autores: CARVALHO,ANGELA A. M.; MOURA,FRANCYELLE B. R. DE; NOGUEIRA,PEDRO AUGUSTO S.; GONÇALVES,ALINE MARIA N.; ARAÚJO,FERNANDA A.; ZANON,RENATA G.; TOMIOSSO,TATIANA CARLA.
Abstract  Obesity is characterized by the excess of body fat and, therefore, may cause musculoskeletal alterations that can negatively influence the tendons. Such overweight-influenced alterations are exercise sensitive though. Morphological and biochemical alterations were reported in the calcaneal tendon of mice submitted to a lipid-rich diets along with practicing exercises, with the following groups: normal diet without exercise (ND), normal diet with exercise (NDex), lipid-rich diet without exercise (LD), lipid-rich diet without exercise (LDex). The calcaneal tendons were removed and subjected to histological and biochemical analysis. Layers of the tissue were stained with Hematoxylin and Eosin, Picrosirius Red and Von Kossa while a protein dosage was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Hematoxylin-eosin; Obesity; Tendon; Von Kossa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100909

Identification of Listeria monocytogenes in cattle meat using biochemical methods and amplification of the hemolysin gene
Provedor de dados: 42
Autores: SILVA,ALESSANDRA S.; DUARTE,ELIZABETH A.A.; OLIVEIRA,THIAGO A.S. DE; EVANGELISTA-BARRETO,NORMA S.
Abstract  In Brazil and in other countries of the world, studies have been conducted to identify Listeria monocytogenes in cattle meat that is preferably consumed undercooked and, when marketed without meeting strict phytosanitary requirements, may cause outbreaks of listeriosis. In the such, foodborne outbreaks, the methods used for the detection of the pathogen and the efficiency associated with them are crucial for the proper assessment. In this study, we used the techniques biochemical and molecular for identification of the L. monocytogenes isolated from 30 samples of the fresh beef, marketed in ten butchers’ shop of the free-fair from a municipality from the Bahia, Brazil. The results obtained from biochemical tests (catalase, motility, β-hemolysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Foodborne diseases; Listeriosis; Meat products; Hly A gene.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201004

Biotransformation of grape pomace from Vitis labrusca by Peniophora albobadia LPSC # 285 (Basidiomycota)
Provedor de dados: 42
Autores: TRONCOZO,MARÍA I.; FIGOLI,CECILIA B.; FRANCO,MARIO E.E.; MIRÍFICO,MARÍA V.; BOSCH,ALEJANDRA; RAJCHENBERG,MARIO; BALATTI,PEDRO A.; SAPARRAT,MARIO C. N.
Abstract  Grape pomace from Vitis labrusca is an important sub-product of the “American table wine” industry. It is recalcitrant to degradation, and its accumulation is a serious problem with negative environmental impacts. We analyzed the ability of five white-rot fungi to transform this residue in-vitro. Mass loss and phenol removal in grape pomace treated with each fungus were compared after 30-day solid-state fermentation. Since Peniophora albobadia isolate LPSC 285 was the fungus that showed the highest degradative ability and the lowest free phenol levels in the residue transformed, we selected this fungus to monitor its effect on this residue after 30, 60, and 90 days of incubation. We analyzed mass loss of the residue caused by the fungus activity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fungi; Grape pomace; Peniophora albobadia; Transformation; Vitis labrusca.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100704

Weedy ferns (Polypodiopsida) in Argentina: diversity, distribution and impact on human activities and ecosystems
Provedor de dados: 42
Autores: YAÑEZ,AGUSTINA; GUTIERREZ,DIEGO G.; PONCE,MARTA MÓNICA.
Abstract  Currently, in Argentina 368 species of true ferns (i.e. Polypodiopsida class) are distributed throughout the country, however, only four of them have been mentioned until now as weeds and ruderal species. The goal of this work was to generate an update of weedy ferns from Argentina, including morphology, distribution, and type of weed according to their impact on natural habitats and/or human activities. All Argentinian fern species were analyzed based on references, herbarium specimens, and field trips. As a result of our study 25 species were recorded from Argentina and classified as segetal, ecological, or aquatic weeds, and ruderal and/or toxic species. Current taxonomic identity, diagnostic characters, origins, habitats, geographical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthropized areas; Aquatic weed; Ecological weed; Ruderal weed; Segetal weed; Toxic plant.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100721

Public space, socio-environmental responsibility and citizenship: a case study on a Brazilian borough
Provedor de dados: 42
Autores: REIS,DANIELE P.; RABINOVICI,ANDRÉA; Neiman,Zysman; ROMERO,FERNANDA C.; FARIAS,LUCIANA A.
Abstract  Some researchers point out the decline in contemporary cities of the use of public spaces, whether free or restricted access. In this sense, the present essay proposes a reflection on a “public sphere of organized presence”, according to Habermas classification, as a rescue of the importance of this space for the exercise of citizenship and social-environmental responsibility. The reflection was based on the results obtained from a study in the district of Riacho Grande, São Bernardo do Campo, São Paulo, Brazil, in which the environmental perception of the participants of the meetings about the region was known by documentary analysis, direct observation and interviews with questionnaires. It was possible to verify that this public space can...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Citizenship; Public space; Sphere public.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101203

The distribution of the freshwater crab Fredius reflexifrons (Ortmann, 1897) (Brachyura, Pseudothelphusidae) in an Environmental Protection Area of the Planalto da Ibiapaba, Northeastern Brazil
Provedor de dados: 42
Autores: SANTOS,LIVANIO C. DOS; NASCIMENTO,WHANDENSON M. DO; MATOS,HELAINE S.; PINHEIRO,ALLYSSON P.; SILVA,JOSÉ R.F.
Abstract  Freshwater crabs are important components of aquatic ecosystems; however, their distributions are restricted because of characteristics of their life history, which hinder conservation strategies. Fredius reflexifrons is a widely distributed freshwater crab of the Amazon basin with relictual occurrences in small wetlands on the Planalto da Ibiapaba in Northeastern Brazil. Habitat degradation, destruction of forest patches, channeling of water bodies, and the use of land for legume cropping can seriously impact the species by leading to the extinction of its relic populations, which have limited distributions in the Área de Proteção Ambiental (APA; Environmental Protection Area) Bica do Ipu of the Planalto da Ibiapaba. The objectives of this study...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachyura; Conservation unit; Northeastern semiarid region; Relictual distribution.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100708

Population dynamics and reproductive phenology of a harvestman in a tidal freshwater wetland
Provedor de dados: 42
Autores: IGLESIAS,PATRICIA P.; PEREYRA,MARTÍN O.
Abstract  There is a great amount of ecological information for terrestrial arthropods in several types of habitats, but few studies have focused on populations living in tidal freshwater wetlands. During a two-year field survey, we studied the temporal dynamics of the harvestman Discocyrtus prospicuus inhabiting a freshwater wetland exposed to predictable tides and unpredictable floods. We also explored the effects of temperature, precipitation, and tide level on the population dynamics and reproductive phenology. Our findings are markedly different from those reported in other harvestman species living in different habitats and also from conspecific populations living in the mainland. Adults, subadults, and juveniles remain active throughout the year,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic factors; Breeding season; Phenology; Sex-ratio; Unpredictable floods.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100710

Genetic parameters for performance and carcass traits in a paternal 1 lineage of broiler
Provedor de dados: 42
Autores: CRUZ,VALDECY A.R.; GRUPIONI,NATALIA V.; MENDONÇA,GABRIELA G.; VENTURINI,GUILHERME C.; LEDUR,MONICA C.; PEIXOTO,JANE O.; MUNARI,DANISIO P.
Abstract  The objective of this study was to estimate variance components for performance and carcass traits in a paternal broiler line. The (co)variance components were estimated by the restricted maximum likelihood method applied to the animal model, including the fixed effect of group (sex and hatch) and additive genetic and residual as random effects. Estimated heritability for performance traits ranged from 0.09 to 0.42. The genetic correlations between traits ranged from -0.50 to 0.97. The heritability estimates of feed intake, weight gain, and feed conversion from 35 to 41 days of age were of low magnitude. The genetic correlations among them were favorable to genetic selection. These results suggest that moderate genetic gain can be obtained to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carcass; Feed conversion; Genetic correlation; Heritability; Weight gain.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201006

Influence of low-protein diet with different levels of amino acids on laying hen performance, quality and egg composition
Provedor de dados: 42
Autores: ALAGAWANY,MAHMOUD; EL-HINDAWY,MOHAMED M.; EL-HACK,MOHAMED E. ABD; ARIF,MUHAMMAD; EL-SAYED,SABRY ABD.
Abstract  The present study aimed to investigate the consequences of dietary levels of crude protein (CP) and total sulfur amino acids (TSAA, Met+Cys) on productive performance, egg quality and egg components for Lohmann Brown laying hens through 18-34 weeks of age. A 2×3 factorial design experiment was conducted using two levels of CP (16 and 18 %) and three levels of Met+ Cys (0.67, 0.72 and 0.77 %). A total of 144 Lohmann Brown laying hens at 18 weeks of age were randomly divided into 6 treatment groups. The best values of final body weight and body weight change were recorded by the hens fed 18 % CP diet. Increasing dietary CP up to 18 % accompanied with the best (P&gt; 0.01) feed conversion, egg weight and egg mass. The combination between low-CP diet...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Layers; Low-protein diet; Amino acids; Production; Egg quality; Blood.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100712

Main causes of bird-window collisions: a review
Provedor de dados: 42
Autores: BASILIO,LAY G.; MORENO,DANIELE J.; PIRATELLI,AUGUSTO J.
Abstract  Bird-window collisions are a major cause of bird mortality in the world; up to one billion birds die each year from collisions with glass panes in North America alone. However, relatively little attention had been given to this issue in the broad scientific literature, despite a recent increase in the number of papers. In this paper, the indexed literature on bird-window collisions was reviewed, specifically addressing the causal factors. The search retrieved 53 papers, mostly from North America. The factors linked to higher collision rates were large areas of continuous glass, the presence of nearby vegetation and feeders, bird migration, abundance, and behavior. Several factors were site-specific, preventing the global extrapolation of these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bird strikes; Bird-friendly buildings; Glass panes; Human-made structures; Urban birds.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100706

β-galactosidase Encapsulated in Carrageenan, Pectin and Carrageenan/Pectin: Comparative Study, Stability and Controlled Release
Provedor de dados: 42
Autores: SILVA,RENATA CRISTINA; TREVISAN,MARCELLO G.; GARCIA,JERUSA SIMONE.
Abstract  The present study investigated the encapsulation of β-galactosidase in carrageenan, pectin and its hybrid hydrogels by using the ionotropic gelation method. The material obtained was characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG/DTG) and scanning electron microscopy (SEM). The effects of pH, temperature and storage time were evaluated in terms of the catalytic activity of the free and encapsulated enzyme. Addition studies were conducted evaluating the performance of catalytic activity in vitro conditions. Carrageenan, pectin and hybrid hydrogels presented encapsulation efficiency of 58 ± 1%, 72 ± 1% and 77 ± 2%, respectively. The pectin hydrogel showed the higher β-galactosidase activity in pH and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biopolymer; Encapsulation; Enzymatic activity; Ionotropic gelation; Lactase.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100905

Chemical composition and biological activities of the essential oils from Vitex-agnus castus, Ocimum campechianum and Ocimum carnosum
Provedor de dados: 42
Autores: RICARTE,LARA P.; BEZERRA,GABRIELI P.; ROMERO,NIRLA R.; SILVA,HORLANDO C. DA; LEMOS,TELMA L.G.; ARRIAGA,ANGELA M. C.; ALVES,PÉRICLES B.; SANTOS,MARCELO B. DOS; MILITÃO,GARDENIA C.G.; SILVA,THIAGO D.S.; BRAZ-FILHO,RAIMUNDO; SANTIAGO,GILVANDETE M.P.
Abstract  The essential oils obtained by hydrodistillation from fresh leaves of Vitex agnus-castus and Ocimum campechianum, and from fresh inflorescences of Ocimum carnosum were analysed by GC-FID and GC-MS. The major components of V. agnus-castus essential oil were identified as 1,8-cineole (47.9%), terpinyl α-acetate (11.6%), sabinene (11.2%) and caryophyllene oxide (9.7%), while in the O. campechianum essential oil were eugenol (72.1%), β-elemene (6.8%), (E)-caryophyllene (6.4%) and bicyclogermacrene (5.2%). Linalool (79.0%), α-epi-cadinol (5.4%), terpinen-4-ol (3.2%) and 1,8-cineole (2.8%) were the major constituents in the O. carnosum essential oil. The essential oils were subsequently evaluated for their larvicidal and cytotoxic activities. Larval...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Cytotoxic activity; Lamiaceae; Larvicidal activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100718

Histological Changes in Category 2 Animal Byproducts under the Influence of a Ferment Preparation
Provedor de dados: 42
Autores: LUKIN,ALEKSANDR; NAUMOVA,NATALIA; BITIUTSKIKH,KSENIA.
Abstract  The paper deals with the possibility of processing category 2 animal byproducts with a ferment preparation. We chose collagen-rich cattle lips and ears as the category 2 byproducts for our study. The selected samples were processed in the following sequence: fixation, rinsing with running water, densifying the samples, slicing into sections, dying sections, and enclosing the sections under cover glass. The pathohistomorphologic changes found in the control samples significantly differ both before the processing and after the use of the ferment preparation Protepsin, which caused destructive metabolic and hydrolytic processes in the dense connective tissue of the ear and lip framework and led to softening of the muscle parenchyma of the organs.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lips; Ears; Pathohistomorphologic changes; Protepsin; Animal byproducts; Ferment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100715

Characterization of volcanic structures associated to the silicic magmatism of the Paraná-Etendeka Province, in the Aparados da Serra region, southern Brazil
Provedor de dados: 42
Autores: BENITES,SUSANA; SOMMER,CARLOS A.; LIMA,EVANDRO F. DE; SAVIAN,JAIRO F.; HAAG,MAURICIO B.; MONCINHATTO,THIAGO R.; TRINDADE,RICARDO I.F. DA.
Abstract  The Paraná-Etendeka Magmatic Province is associated with the distensive tectonics that caused the rupture of the Gondwana continent during the Lower Cretaceous and generated an intense volcanism that covers South America and the NW portion of Namibia in Africa. In Brazil, this volcanic sequence is named Serra Geral Group and predominantly consists of basalts and subordinated silicic rocks. The goal of this study is to characterize the geomorphological features observed in the Aparados da Serra region, southern Brazil, and to evaluate the relationship between these structures and the primary silicic volcanic structures. The geomorphological features were first identified using remote sensing and then correlated with flow structures observed in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anisotropy of Magnetic Susceptibility; Image processing; Silicic lavas; Volcanic morphologies.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000300601

Wave energy distribution at inlet channel margins as a function of ebb tidal delta morphology: Cananéia Inlet, São Paulo, Brazil
Provedor de dados: 42
Autores: AMBROSIO,BRUNA G.; SOUSA,PAULO H.G.O.; GAGLIARDI,MARCELO H.; SIEGLE,EDUARDO.
Abstract  Wave energy gradients between and along the margins of inlet channels play an important role in defining the inlet margins’ evolutionary processes, mainly those related to spit erosion or accretion, and inlet migration. The aim of this study is to understand the wave power distribution along the margins of a tidal inlet (Cananéia inlet, São Paulo, Brazil), its variation over time, and the influences of the ebb tidal delta morphology on the incoming waves. To evaluate changes in bathymetry and morphology of submersed features, we apply geoprocessing techniques to analyze nautical charts from the Brazilian Navy from 1939, 1971, 1985 and 2004. The numerical model MIKE21 SW was applied to assess wave propagation and nearshore wave power. Hence, wave...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wave action; Ebb tidal delta; Tidal inlet; Numerical modeling.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100602

Taxonomic and non-taxonomic responses of benthic macroinvertebrates to metal toxicity in tropical reservoirs. The case of Cantareira Complex, São Paulo, Brazil
Provedor de dados: 42
Autores: BEGHELLI,FREDERICO G.S.; CETRA,MAURÍCIO; MARCHESE,MERCEDES; LÓPEZ-DOVÁL,JÚLIO CÉSAR; ROSA,ANDRÉ H.; POMPÊO,MARCELO L. M.; MOSCHINI-CARLOS,VIVIANE.
Abstract  Benthic macroinvertebrates are organisms that are recognized as water quality bio-indicators. A wide variety of indices and metrics have been shown to respond to a variety of anthropogenic impacts, usually under a general condition of environmental impairment. The absence of a clear distinction in the relations between specific pollutants and biotic variables is very common and can lead to biased interpretation of biomonitoring. The aims of this research were to test taxonomic and non-taxonomic responses to specific environmental conditions instead to general conditions. For this purpose, we estimated the theoretical toxicity by comparing toxicity values published by EPA with metal concentrations in water and sediments. Then we tested the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bio-indicator; Biomonitoring; Chironomid; Oligochaetes; Toxicity; Metal.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000300701

In vivo biocompatibility of silicon dioxide nanofilm used as antimicrobial agent on acrylic surface
Provedor de dados: 42
Autores: LACERDA-SANTOS,ROGÉRIO; LIMA,ANTONIA BÁRBARA L.; PENHA,ELIZANDRA S. DA; SANTOS,ANTONIELSON DOS; CARVALHO,FABÍOLA G.; PITHON,MATHEUS M.; DANTAS,ANTÔNIO FLÁVIO M.
Abstract the focus ofthis study was to testthe hypothesisthatthere would be no difference betweenthe biocompatibility of silicon dioxide nanofilms used as antimicrobial agents. Sixty male Wistar rats were divided into 4 groups (n=15): Group C (Control,Polyethylene), Group AR (Acrylic Resin), Group NP (Acrylic Resin coated with NP-Liquid), Group BG (Acrylic Resin coated with Bacterlon).the animals were sacrificed with 7,15 and 30 days and tissues analyzed as regardsthe events of inflammatory infiltrate, edema, necrosis, granulation tissue, mutinucleated giant cells, fibroblasts and collagen. Kruskal-Wallis and Dunn tests was used (P&lt;0.05). Intense inflammatory infiltrate was shown mainly in Groups BG and AR, with significant difference from Control Group...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomaterials; Biocompatibility; Dentistry; Inflammation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100910

Effective microorganisms inoculant: Diversity and effect on the germination of palisade grass seeds
Provedor de dados: 42
Autores: SANTOS,LIDIANE F. DOS; LANA,ROGÉRIO P.; SILVA,MARLIANE C.S. DA; VELOSO,TOMÁS G.R.; KASUYA,MARIA CATARINA M.; RIBEIRO,KARINA G.
Abstract  Effective microorganisms (EM) are inoculants formed by fungi and bacteria isolated from soil. EM are commonly used by farmers on agronomic crops to stimulate plant growth, but their composition and their benefits has been controverted. This study aimed to analyze the diversity of microorganisms growing in three EM inoculants, as well as to evaluate their efficiency in the germination of palisade grass seeds. The total DNA of the three EM inoculants was extracted, the 16S rRNA and ITS genes were amplified by PCR and sequenced on the Illumina MiSeq platform. Germination tests were conducted with three type of the EM, in three concentration and two times of the immersion. The bacterial group was the most abundant in EM, followed by fungi. Bacterial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Dormancy; Sequencing; Sulfuric acid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201002

Beyond diversity loss and climate change: Impacts of Amazon deforestation on infectious diseases and public health
Provedor de dados: 42
Autores: ELLWANGER,JOEL HENRIQUE; KULMANN-LEAL,BRUNA; KAMINSKI,VALÉRIA L.; VALVERDE-VILLEGAS,JACQUELINE MARÍA; VEIGA,ANA BEATRIZ G. DA; SPILKI,FERNANDO R.; FEARNSIDE,PHILIP M.; CAESAR,LÍLIAN; GIATTI,LEANDRO LUIZ; WALLAU,GABRIEL L.; ALMEIDA,SABRINA E.M.; BORBA,MAURO R.; HORA,VANUSA P. DA; CHIES,JOSÉ ARTUR B.
Abstract  Amazonian biodiversity is increasingly threatened due to the weakening of policies for combating deforestation, especially in Brazil. Loss of animal and plant species, many not yet known to science, is just one among many negative consequences of Amazon deforestation. Deforestation affects indigenous communities, riverside as well as urban populations, and even planetary health. Amazonia has a prominent role in regulating the Earth’s climate, with forest loss contributing to rising regional and global temperatures and intensification of extreme weather events. These climatic conditions are important drivers of emerging infectious diseases, and activities associated with deforestation contribute to the spread of disease vectors. This review...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon rainforest; Biodiversity; Emerging infectious disease; Deforestation; Pathogens; Public health.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100724

Erratum
Provedor de dados: 42
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101501

Environmental risk for aquatic and terrestrial organisms associated with drift from pesticides used in soybean crops
Provedor de dados: 42
Autores: BUENO,MARIANA R.; CUNHA,JOÃO PAULO A.R. DA.
Abstract  Several countries included the assessment of environmental drift contamination risk for the registration of pesticides. This practice is not yet totality effective in Brazil; however, due to the large number of pesticides in use, it is important to identify the real contamination risk during pesticide spraying. Therefore, this study determined the indices of environmental risks for exposure to drift from terrestrial applications of fungicides, herbicides, and insecticides that are used in soybean crops under Brazilian climate conditions and established buffer zones for the application of these products. Based on the three prediction drift models for soybeans in Brazil, risk indices were computed for aquatic organisms and terrestrial organisms...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drift curves; Glycine max; Pesticide application technology; Risk assessment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201007

An oviposition trap to collect immatures of coprophagous moth flies (Diptera: Psychodidae)
Provedor de dados: 42
Autores: LIMA,DAYANA A.; CORDEIRO,DANILO P.; FRANKLIN,ELIZABETH.
Abstract  Larvae of Psychodidae develop in a variety of breeding sites, including vertebrate feces. As searching for the larvae can be an extremely difficult task, immatures of many species are little known, with descriptions of coprophagous moth flies all from outside the Neotropics. In an attempt to mitigate this challenge, we tested an oviposition trap using cattle dung as attractant, measured the efficiency and specificity of the traps and the most efficient period of exposition in the field. With 60 traps installed in one fragment of ombrophilous forest, 344 immatures were collected, distributed in four species of Psychoda and one of Feuerborniella. Psychodidae accounted for 75% of the collected Diptera. The high specificity of the trap to Psychodidae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle-Arthropoda; Immature insects; Psychodinae; Sampling efficiency.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100709

Games Applied to Children with Motor Impairment using the Myo Wearable Device
Provedor de dados: 42
Autores: Fernandes,Flávia Gonçalves; Cardoso,Alexandre; Lopes,Renato de Aquino.
Abstract  The characteristic of immersion, involvement and motivation have made serious games an important tool to be used in the medical field. However, there are people that, having some sort of physical disability, are not able to, or do not feel motivated to play. This work presents a strategy to support human- computer interactions for children with a disability in their upper limbs through a wearable device, with the objective of improving access to digital games for the target audience. For the development of this work, the wearable device Myo was used to control a puzzle game as a means of providing the interaction between the individual and the game. In this context, the game is controlled with the movement of the user's upper limb that presents...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Physical disability; Wearables; Digital games; Upper limbs.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100902

Respiratory syncytial virus causes more hospitalizations and deaths in equatorial Brazil than influenza (including during the 2009 pandemic)
Provedor de dados: 42
Autores: ALONSO,WLADIMIR J.; TAMERIUS,JAMES; FREITAS,ANDRÉ R.R.
Abstract  Despite numerous studies evaluating influenza and Respiratory Syncytial Virus (RSV), there is still a lack of knowledge about them, especially in tropical countries. We compared the relative importance of respiratory viruses by examining their spatiotemporal patterns, age-specific hospitalization data and mortality data for 2007-2012 obtained from official sources. The data were aggregated into “respiratory infection seasonal zones” formed combining states that had similar seasonal patterns of pneumonia and influenza (P&amp;I). Equatorial-North where P&amp;I peaks in the middle of the year, Equatorial-South where P&amp;I peaks in the first semester and coincides with the rainy-season, Subtropical where P&amp;I peaks are clearly concentrated in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disease burden; Influenza; RSV; Seasonality; Pandemic; 2009pdm.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100904

Non-Hyperbolic Velocity Analysis of Seismic Data from Jequitinhonha Basin, Northeastern Brazil
Provedor de dados: 42
Autores: ORTEGA,FRANCISCO G.; BASSREI,AMIN; GOMES,ELLEN N.S.; OLIVEIRA,ANDREI G. DE.
Abstract  Normal moveout (NMO) velocity is used in seismic data processing to correct the data from the moveout effect. This velocity depends on the medium above the reflector and it is estimated from the adjustment of a hyperbolic function that approximates the reflection time. This approximation is reasonable for media formed by isotropic layers. For deeper exploration targets, which effectively behave as anisotropic media, the NMO velocity estimate from the hyperbolic approximation becomes imprecise. One possibility is the use of non-hyperbolic approximations for the reflection time and deeming the medium to be anisotropic. However, these approximations make the NMO velocity estimation a more complex problem, since the anisotropic parameters are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NMO velocity; Non-hyperbolic reflection time; Anisotropic media.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100606

Unraveling the genetic complexity of a cultivated breeding population of “yerba mate” (Ilex paraguariensis St. Hil.)
Provedor de dados: 42
Autores: PAIVA,DANIELA IVANA; CASCALES,JIMENA; ROSETTI,MARÍA EVA NATALIA; SCHERER,RAFAEL ALEJANDRO; GAUCHAT,MARÍA ELENA; GOTTLIEB,ALEXANDRA MARINA.
Abstract  We report the first comprehensive multilocus molecular characterization of cultivated Ilex paraguariensis plants belonging to a breeding program. Using nuclear and homologous chloroplastidic molecular markers, we have genotyped 158 plants from four plantation sites. Analyses of the nuclear data (187 variable dominant loci) allowed detecting high diversity (0.569), the occurrence of four distinct genetic clusters, and a low but significant differentiation among sites. Additionally, 20 chloroplastidic alleles were identified applying five microsatellite polymorphic markers, and a high chloroplastidic diversity was recognized (0.505); two haplogroups were distinguished amongst the 63 haplotypes detected. Our results from both nuclear and plastidic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chloroplastidic microsatellites; Genetic diversity; Genotyping; ISSR markers.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100717

Effects of diflubenzuron on associated insect fauna with Anopheles(Diptera: Culicidae) in laboratory, partial-field, and field conditions in the Central Amazon
Provedor de dados: 42
Autores: FERREIRA,FRANCISCO A.S.; ARCOS,ADRIANO N.; MAIA,NATALIELLI S.G.; SAMPAIO,RAQUEL T.M.; COSTA,FÁBIO M.; RODRIGUES,ILÉA B.; TADEI,WANDERLI P.
Abstract  This study aimed to analyze the possible effects of diflubenzuron on the associated insect fauna under laboratory, semi-field and field conditions. Laboratory bioassays were performed in aquariums with mortality readings (%) every 24h until 96h, and in semi-fields, insects were kept in basins with readings every 24h for up to 12 days, in triplicates and a control. In the field experiment, a collection was performed before the application of diflubenzuron in ten brick factory pits (25m²) and 15 post-application. The values of LC50 and LC90 for Chironomus were 2.77x10-3g/L and 0.86g/L, respectively, and for Buenoa, they were 0.019g/L and 0.92g/L, a strong relationship was observed between mortality and exposure time (r²&gt;0.8) in all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonia; Chironomus sp.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100722

Longitudinal study of the sympathovagal balance in women submitted to bariatric surgery
Provedor de dados: 42
Autores: LUCAS,CRISTINA M.S.; ZANIQUELI,DIVANEI; ALVIM,RAFAEL O.; MIGUEL,GUSTAVO P.S.; MILL,JOSÉ GERALDO.
Abstract  Studies have shown improvement of the cardiac autonomic balance in post-bariatric patients. Most of these studies included patients using drugs interfering in the autonomic nervous system. This study assessed the time course of changes in the sympathovagal balance after bariatric surgery (Roux-en-Y gastric bypass) in 26 women free from drugs. A 10-min electrocardiographic recording was obtained at baseline and at 3 and 6 months after surgery. Temporal and spectral domains of heart rate variability were analysed. The time domain components of cardiac vagal modulation increased progressively after surgery. In the frequency domain, high frequency power increased from 24.9 at baseline (18.0 to 46.3) to 44.5 at 3 months (23.4 to 65.6), and 54.1 at 6...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bariatric surgery; Autonomic control; Heart rate variability; Vagus outflow.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100907

Plasma miR-1273g-3p acts as a potential biomarker for early Breast Ductal Cancer diagnosis
Provedor de dados: 42
Autores: Guo,Huan; Zeng,Xiangting; Li,Haining; Guo,Yanxiang; Wang,Tao; Guo,Hongyun; Zhu,Gongjian; Wang,Lan; Zhou,Haihong; Liu,Kedan; Chen,Xiaoyi; Wang,Haitao; Zhao,Xinke; Su,Haixiang; Li,Yingdong.
Abstract  Circulating miRNAs presenting in plasma in a stable manner have been demonstrated their potential role as a promising biomarkers in many human diseases, such as Alzheimer’s disease, melanoma and ovarian carcinoma. However, few circulating miRNAs could be used for breast ductal cancer diagnosis. Here, we identified miR-1273g-3p as a biomarker for detecting breast ductal cancer. We detected miR-1273g-3p levels in the plasma of 39 sporadic breast ductal cancer patients and 40 healthy donors by Stem-loop Quantitative Real-time PCR (qRT-PCR). The results showed the plasma miR-1273g-3p level were significantly up-regulated in breast ductal cancer patients compared with healthy donors (p=0.0139). Receiver operating characteristic (ROC) curve also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breast ductal carcinoma; Plasma; MiR-1273g-3p; Circulating miRNA; Biomarker.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100801

Geochemistry and δ11 B evolution of tourmaline from tourmalinite as a record of oceanic crust in the Tonian Ibaré ophiolite, southern Brasiliano Orogen
Provedor de dados: 42
Autores: ARENA,KARINE DA ROSA; HARTMANN,LÉO AFRANEO; LANA,CRISTIANO DE CARVALHO; QUEIROGA,GLÁUCIA NASCIMENTO; CASTRO,MARCO PAULO DE.
Abstract  The isotopic and geochemical evolution of tourmaline constrain the processes of paleo-oceanic lithosphere in ophiolites. The Brasiliano Orogen is a major structure of South America and requires characterization for the understanding of Gondwana supercontinent evolution. We made a pioneering investigation of tourmaline from a tourmalinite in the Ibaré ophiolite by integrating field work with chemical analyses of tourmaline by electron microprobe (EPMA) and δ11B determinations via laser ablation inductively coupled plasma mass spectrometer (LA-ICP-MS). Remarkably massive tourmalinite (&gt;90 vol.% tourmaline, some chlorite) enclosed in serpentinite has homogeneous dravite in chemical and isotopic composition (δ11B = +3.5 to +5.2‰). These results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boron isotopes; Geochemistry; Ibaré ophiolite; Tourmalinite; Southern Brasiliano Orogen.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100603

Spatial-temporal variability of rainfall and mean air temperature for the state of Bahia, Brazil
Provedor de dados: 42
Autores: MEDAUAR,CAIQUE C.; SILVA,SAMUEL A.; CARVALHO,LUIS CARLOS C.; GALVÃO,ÍCARO M.; MACÊDO,PHILYPE V.
Abstract  The aim of this study was to evaluate spatial behavior and temporal stability of rainfall and mean air temperature in the state of Bahia, using historical series from 1975 to 2011 and 1961 to 2009, respectively. The analyses were performed considering the accumulated variables of each month of the historical series. The accumulated monthly totals were divided by the number of years of observation, obtaining the monthly average values ​​of rainfall and air temperature for each measurement point. The data were submitted to descriptive statistical analysis and linear correlation studies. Geostatistical analysis was used to verify the existence and quantify spatial dependence between the values of the studied variables. In addition, the maps were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climatic variables; Geostatistics; Meteorology; Thematic maps.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100605

Trap nest preference of solitary bees in fragments of the Baturité massif, Atlantic Forest, Brazil
Provedor de dados: 42
Autores: GUIMARÃES-BRASIL,MICHELLE O.; BRASIL,DANIEL F.; PACHECO-FILHO,ALÍPIO J.S.; SILVA,CLÁUDIA I.; FREITAS,BRENO M.
Abstract  The study investigated native solitary bee species that nest in pre-existing cavities in the Baturité Massif, State of Ceará, Brazil, their preference for nest substrates and aspects of these bee communities. Samples were taken in four distinct areas of the Baturité Massif using three types of trap-nests: dried bamboo internodes, cardboard tubes and rational boxes. Out of the 185 nests offered, 34 were colonized and 24 of them produced 131 bees, belonging to two families (Apidae and Megachilidae) and five genera (Centris, Mesocheira, Euglossa, Megachile and Coelioxys) from six species, including parasitic ones. Nesting preference was observed to certain types of substrates (χ²=17.89, p&lt;0.001), with bamboo internodes being preferred by bee to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apidae; Emergence; Megachilidae; Trap-nest.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201005

Foreign market selection process as tool for international expansion: Case study for ecuadorian chia seeds exports to the european union
Provedor de dados: 42
Autores: TERÁN-YÉPEZ,EDUARDO; SANTOS-ROLDÁN,LUNA; PALACIOS-FLORENCIO,BEATRIZ; BERBEL-PINEDA,JUAN MANUEL.
Abstract  To assist Ecuadorian chia seed producers in their quest for internationalisation. This article uses a case study to present a methodology which assists in the selection of the most suitable export market for a product. It is based on a diverse range of indicators grouped into 7 dimensions that were used to analyse the 27 member countries of the European Union in order to determine the most suitable export market for chia seeds from Ecuador. Germany is the biggest European importer of chia seeds with a 55% share, followed by the Netherlands, the United Kingdom and Spain. It presents a methodology for market selection that can be employed as a tool for international expansion which can easily be used by companies in search of the most suitable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chia seeds; Ecuador; International market selection; Internationalisation; European Union.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101205

Evidence on the use of internet for businesses by MSEs in a Developing Country. The Indonesian case
Provedor de dados: 42
Autores: TAMBUNAN,TULUS T.H.
Abstract  This study aims to examine the development of Indonesian micro and small enterprises (MSEs) in utilizing the internet for their businesses. This is a descriptive study in nature, which analyses secondary data on MSMEs. It also reviews key literature on the use of ICT by MSMEs in developing countries. It shows that MSMEs, dominated by MSEs, have been the main player in Indonesian domestic economic activities as they accounted for more than 90 per cent of all firms and contributed to more than 50 per cent of gross domestic product (GDP). But, only a small fraction of total MSEs in Indonesia that utilize the internet for business, and the intensity of internet usage by MSEs varies by province and type of business. This is the first macro-level study...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Micro; Small and medium enterprises (MSMEs); Micro and small enterprises (MSEs); Internet; Information and communication technology (ICT); E-commerce.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101202

Schizonyxhelea thomsenae (Wirth), description of the pupa and first records from Argentina, Brazil and Peru (Diptera: Ceratopogonidae)
Provedor de dados: 42
Autores: Cazorla,Carla G.; Díaz,Florentina.
Abstract  The pupa of Schizonyxhelea thomsenae (Wirth) is described and illustrated from material collected in Misiones province, Argentina. A key for the four known species of pupae of Schizonyxhelea is given, a diagnosis and photographs of the adult are also provided, and the geographic distribution of the species in the Neotropical region is enlarged including first records from Argentina, Brazil and Peru based mainly on adult specimens.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical region; Predaceous midges; Pupa; New records; Schizonyxhelea.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100705

200.000 IU of vitamin D does not reduce resting Blood Pressure and Inhibit Post-Exercise Hypotension in elderly women: a pilot study
Provedor de dados: 42
Autores: GONÇALVES,MARIA DA CONCEIÇÃO R.; MIRANDA NETO,MANOEL; CAVALCANTE,ISA G.M.; SEBADELHE,VITTÓRIA R.R.J.; SOUZA,MICHELE F. De; NEVES,JULIANA P.R.; SOUZA,FLAVIA T.L. DE; TAVARES,RENATA L.; COSTA,MATHEUS S.; SILVA,ALEXANDRE S.
Abstract  Given the scarcity of studies with elderly and the existence of studies investigating the effect of vitamin D supplementation in PEH (post exercise hypotension), this study evaluated the effect of a single megadose of vitamin D on resting blood pressure (RBP) and post-exercise hypotension (PEH) in the elderly. 11 hypertensive elderly women (70.3 ± 1.7 years) received a single megadose of 200.000 IU of cholecalciferol or a placebo, orally, through capsules. On day 7, the subjects performed 30 minutes of aerobic exercise with blood pressure measurement before exercise and every 10 minutes after exercise during 60 minutes, besides cardiac autonomic modulation. RBP did not significantly change. Exercise promoted significant systolic PEH only in one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerobic exercise; Aged; Hypertension; Hypotension; Cholecalciferol.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100903

Air quality biomonitoring of trace elements in the metropolitan area of Huancayo, Peru using transplanted Tillandsia capillaris as a biomonitor
Provedor de dados: 42
Autores: CRUZ,ALEX RUBEN H. DE LA; AYUQUE,RODOLFO FRANKLIN O.; CRUZ,RONY WILLIAM H. DE LA; LÓPEZ-GONZALES,JAVIER L.; GIODA,ADRIANA.
Abstract  The air quality and distribution of trace elements in a metropolitan area of the Peruvian Andes were evaluated using transplanted epiphytic Tillandsia capillaris as biomonitors. Biomonitors were collected from the non-contaminated area and exposed to five sites with different types of contamination for three months in 2017. After exposure, the content of twenty-one elements were determined by ICP-MS analysis. Datasets were evaluated by one-way ANOVA, exposed-to-baseline (EB), hierarchical cluster analysis (HCA) and principal component analysis (PCA). Results showed significant differences among sampling sites for several elements. According to EF ratios for Ba, Cr, Cu, Pb, Sb, and Zn EB ratios value greater than 1.75 were found around urban...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Active biomonitoring; Bioaccumulation; Airborne trace elements; Peruvian Andes; Tillandsia capillaris.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100501

Influence of wing bands and behavior of Anastrepha fraterculus (Diptera: Tephritidae) by the presence of Megafreya sutrix (Araneae: Salticidae)
Provedor de dados: 42
Autores: ,PRISCILLA C. GOBBI; ,ADRISE M. NUNES; ,EDISON ZEFA; ,FLAVIO R.M. GARCIA.
Abstract  The objective of this study was to evaluate the influence of wing bands and the behavior of Anastrepha fraterculus in the presence of Megafreya sutrix. The first experiment used specimens of M. sutrix (n = 40), 20 males and 20 females of A. fraterculus and Musca domestica. The second experiment used 20 individuals of M. sutrix (10 males and 10 females) and 120 of A. fraterculus (20 males and 20 females) for each treatment. Marks were made on the wings of the flies: a group with painted wing bands (n = 40) with their wings fully painted; another with highlighted wing bands (n = 40) and normal bands (n = 40). Recordings were made for 15 min or until the fly was preyed upon. The analyses were performed through observation of the recordings and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Interaction; Fruit fly; Predator; Spider; Biological control; Behavior.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201008

First record of mass wild waterfowl mortality due to Clostridium botulinum in Brazilian semiarid
Provedor de dados: 42
Autores: LIMA,PEDRO C.; DUTRA,IVERALDO S.; ARAÚJO,FRANCISCO A.A.; LUSTOSA,RICARDO; ZEPPELINI,CAIO G.; FRANKE,CARLOS R.
Abstract  In 2008, 270 wild birds from aquatic environments were found dead or debilitated on the banks of smaller lakes that had been formed due to the decrease in the level of the holding lake of the Sobradinho Dam located on the São Francisco River in the Caatinga of Bahia, Brazil. The outbreak occurred months after the dam’s partial drainage, with the formation of puddles that accumulated decomposing organic material. Amongst the 270 individuals examined and/or found dead, the majority (50%) of the birds found belonged to the Anatidae family. The debilitated birds presented neurological clinical signs including lack of motor coordination, weakness, grave flaccid paralysis in the legs, wings, neck and eyelids, diarrhea, and dyspnea. Tissue samples of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Botulinum toxins; Clostridium botulinum; Wild birds; Caatinga; Aquatic environment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100720

Structures related to resprouting potential of two Myrtaceae species from Cerrado: morpho-anatomical and chemical studies
Provedor de dados: 42
Autores: SILVA,GABRIELA S. DA; FERRARO,ALEXANDRE; OGANDO,FELIPE I.B.; AGUIAR,CLAUDIO L. DE; APPEZZATO-DA-GLÓRIA,BEATRIZ.
Abstract  Resprouting is a functional trait in species which occur in fire-prone ecosystems. These plants can resprout from aerial buds and by recruiting belowground bud bank using carbohydrates allocated in roots as resource. In this study, we present morpho-anatomical features and chemical composition related to the resprouting potential of two species of Eugenia L. in an area of the Cerrado (Brazilian savanna) under regeneration, after the clear-cutting of Pinus sp. with the later burning of pine needles layer. We used standard histological techniques for belowground organs analysis and aerial buds protection degree. Belowground buds in layer from soil surface down to 10 depth were counted and the chemical analyses were performed on roots. In all aerial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Accessory buds; Bud bank; Brazilian savanna; Colleters; Eugenia dysenterica; Eugenia punicifolia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100702

First record of the genus Choledocystus(Trematoda: Plagiorchiidae) for amphibians of the Chacoan region in Argentina
Provedor de dados: 42
Autores: HAMANN,MONIKA INES; LEÓN-RÈGAGNON,VIRGINIA; FERNÁNDEZ,MARÍA VIRGINIA; GONZÁLEZ,CYNTHYA ELIZABETH.
Abstract  This is the first record of the trematode Choledocystus incurvatum and Choledocystus elegans in Argentinean amphibians collected in two localities of the Chacoan region. The first trematode species was found infecting the small intestine of Pseudis paradoxa Linnaeus, captured near the city of Corrientes, Corrientes Province; the second species was found infecting the gall-bladder of Lepidobatrachus laevis Budgget, captured in Ingeniero Juárez, Formosa Province. Morphology of these species was studied in detail using light microscopy and scanning electron microscopy (SEM), and compared with previous studies of Brazilian and Venezuelan specimens. Morphological descriptions of these parasites are provided to supplement existing data. Choledocystus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trematoda; Choledocystus; Amphibians; Chacoan region; Argentina.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100723

Characterization and in vitro antitumor activity of polymeric nanoparticles loaded with Uncaria tomentosa extract
Provedor de dados: 42
Autores: RIBEIRO,ANA F.; SANTOS,JULIANA F.; MATTOS,RÔMULO R.; BARROS,ELIANE G.O.; NASCIUTTI,LUIZ EURICO; CABRAL,LÚCIO M.; SOUSA,VALERIA P. DE.
Abstract  Uncaria tomentosa (UT) extracts have been shown to have promising anti-tumor activity. We hypothesized that its incorporation into nanostructured systems could improve the anticancer properties. Here, poly-e-caprolactone (PCL) and poly-d,l-lactide-co-glycolide (PLGA) were employed to generate nanoparticles loaded with UT extract in a single emulsion solvent evaporation method. The nanoparticles were characterized by particle size, zeta potential, morphology and entrapment efficiency along with stability and release profiles. The nanoparticles presented entrapment efficiencies above 60% and a mean diameter below 300nm. UT-PCL nanoparticles presented higher entrapment efficiency and mean particle size as well as a slow release rate. The UT-PLGA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nanoparticles; Prostate cancer; PLGA; PCL; Anti-tumor; Anti-cancer; Cat’s Claw.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100908

Influence of water volume reduction on the phytoplankton dynamics in a semi-arid man-made lake: A comparison of two morphofunctional approaches
Provedor de dados: 42
Autores: BRAGA,GUSTAVO G.; BECKER,VANESSA.
Abstract  Significant reductions in the water levels of lakes are influenced by droughts and freshwater demands, especially in semi-arid regions, where hydric stress is greater. The aim of this study was to investigate the dynamics of phytoplankton during two different water volume periods resulting from an extended drought in a semi-arid lake. Another objective was to compare two functional approaches to test which one of these best captures phytoplankton variability as a function of environmental variability. Multivariate analyses performed using the Reynolds Functional Groups (RFG) and Morphology-Based Functional Groups (MBFG) classification schemes indicated two periods, high and a low water volume. The results demonstrated the importance of light...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydric deficit; Cyanobacteria; Eutrophication; Reynolds Functional Groups; Morphology-Based Functional Groups.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100707

Nutritional and non-nutritional habits and occurrence of malocclusions in the mixed dentition
Provedor de dados: 42
Autores: TRAEBERT,ELIANE; ZANINI,FRANCIELLE A.; NUNES,RODRIGO DIAS; TRAEBERT,JEFFERSON.
Abstract  Malocclusions are changes in the development of craniofacial structures of high prevalence. Associated risk factors are diverse and nutritional and non-nutritional suction habits are the most reported. The aim of this study was to estimate the prevalence of malocclusions in the mixed dentition and to study possible association with practices of breastfeeding and suction habits among Brazilian schoolchildren. A cross-sectional study involving a sample of 664 6-year-old children and their families was carried out. Data collection was done through interviews with mothers in the homes and oral examinations of children in schools. Multivariate analyses were performed using the Poisson regression with a robust estimator. The prevalence of overjet over...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malocclusions; Breast-feeding; Suction habits; Schoolchildren.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100906

Silvopastoral system with Eucalyptus as a strategy for mitigating the effects of climate change on Brazilian pasturelands
Provedor de dados: 42
Autores: BOSI,CRISTIAM; PEZZOPANE,JOSÉ RICARDO M.; SENTELHAS,PAULO CESAR.
Abstract  The aim of the present study was to assess the effect of Eucalyptus trees in a silvopastoral system on the microclimate and the capacity of that to mitigate the effects of climate change on pasturelands. This study included an open pasture of Piatã palisadegrass and an adjacent pasture that contained both palisadegrass and East-to-West rows of Eucalyptus trees, with 15 m between rows, 2 m between trees within rows. The micrometeorological measurements were collected at several distances from the tree rows and in the open pasture. The silvopastoral system was associated with greater between-row shading when solar declination was high and greater near-tree shading when solar declination was around -22°. Both soil heat flux and temperature were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agroforestry; Microclimate; Net radiation; Shading; Soil heat flux; Windbreak.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201001

Embryo and larval development of the yellow clam Mesodesma mactroides (Reeve, 1854) (Mesodesmatidae) in laboratory
Provedor de dados: 42
Autores: SANTOS,JUAN J.S.; BERNARDES,JULIANA P.; RAMÍREZ,JUAN R.B.; RAMOS,CÁSSIO O.; GOMES,CARLOS HENRIQUE A. DE MIRANDA; ROMANO,LUIS ALBERTO.
Abstract  The yellow clam Mesodesma mactroides (Reeve, 1854) is a sand mollusc with historical and socioeconomic importance in Brazil, Uruguay and Argentina. A guaranteed form to access a successful reestablishment of the species in their natural environment is directly linked to their reproduction biology. Then, our report introduces the embryonic and larval development of the yellow clam reared in laboratory for such purposes. M. mactroides broodstock were selected as specimens who possess a mean total shell length and weight of 66 ± 3.82 mm and 27.15 ± 4.07 g for an afterwards spawn induction through stripping technique. Regarding the embryonic development, newly fertilized oocytes exhibited a mean diameter of 51.20 ± 6.64 μm. The first polar corpuscle,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broodstock; D-veliger; M. mactroides; Pediveliger; Sand mollusk; Stripping.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201009

Morphoanatomical injuries in Pistia stratiotes L. (Araceae) as a result of exposure to clomazone in water
Provedor de dados: 42
Autores: RIBEIRO,VICTOR HUGO VIDAL; COUTINHO,ÍTALO ANTÔNIO COTTA; ALENCAR,BRENDA THAIS BARBALHO; CABRAL,CÁSSIA MICHELLE; SANTOS,JOSÉ BARBOSA DOS; FERREIRA,EVANDER ALVES; FRANCINO,DAYANA MARIA TEODORO.
Abstract  Contamination of water sources due to herbicide is of great concern. Clomazone is a pesticide with a high contamination potential which could possibility lixiviate to water streams. Changes caused by residual herbicide include flora modifications which are generally detrimental for some species. The lack of morphological studies performed in aquatic plants exposed to herbicide-contaminated environments has encouraged the development of our research. For the first time, we present a study that aimed to evaluate leaf injuries visible to the naked eye as well as microscopical effects which may be caused by clomazone on Pistia stratiotes. Pistia stratiotes was subjected to five concentrations of clomazone. Our analysis showed leaf injuries,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic macrophyte; Clomazone; Herbicide; Hormesis; Leaf anatomy; Water lettuce.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201003

Population structure of Callichirus major (Say 1818) (Crustacea: Callianassidae) and conservation considerations at Southeast coast of São Paulo, Brazil
Provedor de dados: 42
Autores: Moschetto,Fernanda Augusto; Borges,Roberto Pereira; Duarte,Luis Felipe de Almeida.
Abstract  Globally, there is limited knowledge about management and conservation of Callianassidae family. Their catches seem to be recently increasing in several parts of the world and evidences raise concern on the need of specialized literature focused on populations monitoring. At Southeast of Brazil, the species Callichirus major (Say 1818), known as the ghost shrimp, is frequently captured for use as bait in sport fishing and, according to previous studies, the overexploitation could threaten the population. The aim of this study was evaluated over a year this harmful human pressure on the species C. major in two beaches contiguous but susceptible to different anthropogenic impacts due to the existence of legislation on one beach that prohibits the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callianassidae; Ghost shrimp; Conservation; Overexploitation; Sandy beaches; Crustacean.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100701

Electrospun novel nanocomposite comprising polyurethane integrated with ayurveda amla oil for bone tissue engineering
Provedor de dados: 42
Autores: JAGANATHAN,SARAVANA KUMAR; MANI,MOHAN P.
Abstract  Ayurveda oil contains numerous source of biological constituents which plays an important role in reducing the pain relief caused during bone fracture. The aim of the study is to fabricate the polyurethane (PU) scaffold for bone tissue engineering added with ayurveda amla oil using electrospinning technique. Scanning Electron Microscopy (SEM) analysis showed that the fabricated nanocomposites showed reduced fiber diameter (758 ± 185.46 nm) than the pristine PU (890 ± 116.91 nm). Fourier Infrared Analysis (FTIR) revealed the existence of amla oil in the PU matrix by hydrogen bond formation. The contact angle results revealed the decreased wettability (116° ± 1.528) of the prepared nanocomposites compared to the pure PU (100° ± 0.5774). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyurethane; Ayurveda oil; Electrospun scaffold; Blood compatibility; Bone tissue engineering.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101101

On Maurício M. Peixoto and the arrival of Structural Stability to Rio de Janeiro, 1955
Provedor de dados: 42
Autores: JORGE,SOTOMAYOR.
Abstract This essay is a historical exploration of the circumstances, and subsequent mathematical consequences, of the encounter, in 1955, of Maurício M. Peixoto (1921 - 2019) with the work of Henry F. DeBaggis (1916 - 2002) on Structural Stability, Princeton 1952, developing a notion introduced by Alexander A. Andronov and Lev S. Pontrjagin, Gorkii 1937.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Andronov; DeBaggis; Lefschetz; Peixoto; Structural Stability; Differential Equations.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100301

Genetic diversity and structuring in the arapaima (Osteoglossiformes, Osteoglossidae) population reveal differences between the Amazon and the Tocantins-Araguaia basins
Provedor de dados: 42
Autores: Nogueira,Fabrícia; Rêgo,Péricles S. do; Queiroz,Helder; Venere,Paulo; Varela,Eduardo S.; Sampaio,Iracilda; Schneider,Horacio; Araripe,Juliana.
Abstract  Arapaima is a widely-distributed fish of enormous economic importance in the Amazon region. In the present study, a total of 232 specimens were sampled, 121 from five sites in the Amazon basin and 111 from five sites in the Tocantins-Araguaia basin. The analyses investigated fragments of the Cytochrome b, Control Region, Cytochrome Oxidase I, NADH dehydrogenase subunit 2 and seven loci microsatellites. The analyses revealed the existence of two mitochondrial lineages within the general area, with no haplotypes shared between basins, and genetic variability significantly higher in the Amazon than in the Tocantins-Araguaia basin. Two divergent, but sympatric mitochondrial lineages were found in the Amazon basin, but only a single lineage in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon Basin; Tocantins-Araguaia Basin; Lineages; Structure population; Conservation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100703

Modelling the impact of sediment management on the trophic state of a tropical reservoir with high water storage variations
Provedor de dados: 42
Autores: LIRA,CAMILA C.S; MEDEIROS,PEDRO H.A.; NETO,IRAN E. LIMA.
Abstract  Eutrophication of lakes has affected society in many regions, particularly in water scarce environments where: i) low runoff reduces the self-purification potential of water bodies; ii) water supply relies on surface reservoirs, which are susceptible to nutrient enrichment. This work presents an assessment of the impact of the silted sediment management on the trophic status of a tropical surface reservoir with intense temporal variability of water storage. A complete mixing model describing the total phosphorus budget in the water and sediments was used, based on semi-empirical formulations. The sediment reuse as soil fertilizer has been proposed to increase productivity in small scale agriculture, which should also enhance the water quality by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water-sediment interaction; Sediment reuse; Eutrophication; Water quality modelling; Tropical reservoir.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100601

A close look at above ground biomass of a large and heterogeneous Seasonally Dry Tropical Forest - Caatinga in North East of Brazil
Provedor de dados: 42
Autores: CASTANHO,ANDREA D.A.; COE,MICHAEL; ANDRADE,EUNICE M.; WALKER,WAYNE; BACCINI,ALESSANDRO; CAMPOS,DIEGO A.; FARINA,MARY.
Abstract  This work is focused on characterizing and understanding the aboveground biomass of Caatinga in a semiarid region in northeastern Brazil. The quantification of Caatinga biomass is limited by the small number of field plots, which are inadequate for addressing the biome’s extreme heterogeneity. Satellite-derived biomass products can address spatial and temporal changes but they have not been validated for seasonally dry tropical forests. Here we combine a compilation of published field phytosociological observations with a new 30m spatial resolution satellite biomass product. Both data were significantly correlated, satellite estimates consistently captured the wide variability of the biomass across the different physiognomies (2-272 Mg/ha). Based...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Above ground biomass; Caatinga; Physiognomy; Remote sensing; Seasonally dry tropical forest; Semiarid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100604

Taxonomic revision of the flea genus AgastopsyllaJordan &amp;amp; Rothschild 1923 (Siphonaptera: Ctenophthalmidae)
Provedor de dados: 42
Autores: LÓPEZ-BERRIZBEITIA,MARIA FERNANDA; SANCHEZ,JULIANA; BARQUEZ,RUBEN MARCOS; DÍAZ,MÓNICA.
Abstract  Fleas of Argentina are receiving renewed systematic interest, but the identification of many species associated with small mammals can be problematic. We review the taxonomy of the flea genus Agastopsylla including the re-description of two species and one subspecies, and designate neotype and neallotype for Agastopsylla hirsutior, neotype for Agastopsylla nylota nylota from the “Colección Mamíferos Lillo Anexos” (CMLA), Universidad Nacional de Tucumán, Argentina, and neotype and neallotype for Agastopsylla pearsoni from the Natural History Museum (London, U.K.). Additionally, a key to identification of the species of Agastopsylla and a distribution map of the species of the genus are included.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fleas; Systematic; Type specimens; Rodents; Key identification.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100719

Red cabbage (Brassica oleracea L.) extract reverses lipid oxidative stress in rats
Provedor de dados: 42
Autores: VEBER,BRUNO; CAMARGO,ANDERSON; DALMAGRO,ANA PAULA; BONDE,HENRIQUE LUIS P.; MAGRO,DÉBORA D. DAL; LIMA,DANIELA D. DE; ZENI,ANA LÚCIA B.
Abstract  Red cabbage (Brassica oleracea L. var. capitata f. rubra DC.) extract has been demonstrated hypolipidemic and antioxidant capacity. Herein, we investigated the effect of red cabbage aqueous extract (RC) or fenofibrate (FF) in oxidative stress induced by Triton WR-1339 in rats. The antioxidant capacity was evaluated through the superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) activities and, thiobarbituric reactive species (TBARS) and protein carbonyl (PC) levels in erythrocytes, liver, kidneys, cerebral cortex and hippocampus of male rats. The alterations promoted by Triton WR-1339 in enzymatic antioxidant defense in the liver, kidneys and hippocampus were reversed by RC or FF treatments. The TBARS and PC levels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Red cabbage; Brassica oleracea; Oxidative stress; Antioxidants; Triton WR-1339.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100711

Identifying hydric, electrolytic and acid-base imbalances through traditional and quantitative approaches in dogs with hemorrhagic gastroenteritis
Provedor de dados: 45
Autores: Hasuda,A.L.; Flaiban,K.K.M.C.; Lisbôa,J.A.N.; Gomes,L.A.; Polizelli,I.G.; Santana,L.S.
ABSTRACT Vomiting and diarrhea are two important clinical signs that can cause significant electrolytic and acid-base imbalances. The purposes of this study were to characterize hydric, electrolytic and acid-base disorders presented by puppies with hemorrhagic gastroenteritis and to compare the traditional and quantitative approaches to acid-base status interpretation. Sixty-one animals with a history of vomiting and/or diarrhea were used in this study and the following tests were performed: complete blood count, total plasma protein concentration and hemogasometry. Mean, standard deviation and Kappa values were calculated. The imbalances characterized by both approaches were: 42 (69%) animals without imbalance, 17 (28%) with metabolic alkalosis and 2 (3%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acid-base disorders; Dehydration; Strong ion model.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100093

Aspergilose sistêmica em um cavalo - relato de caso
Provedor de dados: 45
Autores: Busato,E.M.; Meirelles,J.R.S.; Castro,M.L.; Abreu,A.C.M.R.; Sousa,R.S.; Brum,J.S.; Dornbusch,P.T.
RESUMO O presente trabalho relata o caso de aspergilose sistêmica em um cavalo da raça Quarto de Milha. O animal apresentava quadro de emagrecimento progressivo e alopecia. Os parâmetros avaliados durante o exame clínico encontravam-se de acordo com os valores normais para a espécie. No hemograma verificou-se leucocitose por neutrofilia, sem desvio à esquerda, proteínas plasmáticas totais elevadas e aumento do fibrinogênio, indicando um processo inflamatório acompanhado de desidratação. Os exames bioquímicos séricos demonstraram aumento no valor da ureia. Apesar dos exames realizados e da terapia instituída com antibióticos de amplo espectro e suporte nutricional, após 51 dias de internamento o quadro clínico evoluiu para caquexia e decúbito permanente do...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Equinos; Infecção fúngica; Imunossupressão.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100065

Diagnostic performance of a commercial ELISA used as a complementary test for bovine tuberculosis in two bovine herds with different disease status
Provedor de dados: 45
Autores: Soares Filho,P.M.; Ramalho,A.K.; Silva,A.M.; Issa,M.A.; Mota,P.M.P.C.; Silva,C.H.O.; Ribeiro,A.C.C.L.; Rei,J.K.P.; Leite,R.C.
ABSTRACT Bovine tuberculosis is a worldwide spread zoonotic disease. Intradermal tuberculinizations are the most used diagnostic tests in the world. Serological tests can be an ancillary diagnosis for bovine tuberculosis. The objective of this study was to evaluate the diagnostic performance of the ELISA Mycobacterium Bovis Antibody Test Kit IDEXX ™ in infected herds, which were in different disease control stages. One hundred and twenty animals from two dairy herds of Minas Gerais state, Brazil, were subjected to the ELISA serological test and the comparative cervical tuberculin test (CCT). Diagnostic test parameters were estimated using Bayesian latent class models and concordance between tests estimated by the frequentist approach. The ELISA test...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comparative cervical tuberculin test; Tuberculosis serology; Diagnostic test evaluation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100001

Ultrasonographic diagnosis of twins in two pregnant bitches: case report
Provedor de dados: 45
Autores: Pavan,L.; Gasser,B.; Santos,V.J.C.; Maronezi,M.C.; Silva,P.; Assis,A.R.; Garcia,P.H.S.; Martins Junior,R.; Uscategui,R.A.R.; Feliciano,M.A.R.
ABSTRACT Multiple pregnancies in humans account for only 3% of pregnancies, 97-98% of which are twin pregnancies and the morbimortality is higher in the monochorionic twins when compared to dichorionic ones. The canine species is naturally multiparous, but the diagnosis of monochorionic twin pregnancy is not common. The objective of this report was to describe the ultrasonographic diagnosis of monochorionic twin pregnancies in two bitches [Pug (case 1) and Shih tzu (case 2)]. It was possible to verify the presence of one gestational vesicle containing two fetuses in each female by observing two heads or two bodies within the same placental site. These fetuses presented adequate viability and normal organogenesis. Their development was similar to the other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gemelar pregnancy; Monochorionic; Canine fetus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100102

Ultraestrutura e criopreservação de sêmen de jundiá amazônico (Leiarius marmoratus) em cativeiro
Provedor de dados: 45
Autores: Borges,A.M.; Araújo,K.O.; Pivato,I.; Navarro,R.D.
RESUMO Os objetivos do presente estudo foram analisar a ultraestrutura do espermatozoide do jundiá amazônico e avaliar a sua criopreservação com três agentes crioprotetores (metanol 10%, DMSO 10% e etilenoglicol 10%) e duas soluções ativadoras (NaCl 0,29% e NaHCO3 1%). Como diluente, foi utilizada uma solução de glicose a 5%, sendo o sêmen envasado em palhetas de 0,25mL e congelado em vapor de nitrogênio (botijão dry shipper). No sêmen fresco, o espermatozoide apresentou comprimento de 25,46±2,54μm, cabeça esférica (1,51±0,18μm), ausência de acrossoma, peça intermediária com formato cônico (0,93±0,17μm), ligeiramente assimétrica, com presença de vesículas, e flagelo único (21,48±2,45μm). O sêmen descongelado apresentou valores mais altos (P&lt;0,05) para...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Siluriforme; Congelamento; Espermatozoide; Crioprotetor.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100253

Radiation therapy for advanced canine nasal planum squamous cell carcinoma: case report
Provedor de dados: 45
Autores: Cunha,S.C.S.; André,M.M.; Corgozinho,K.B.; Silva,K.V.G.C.; Silva,C.A.; Ferreira,A.M.R.
ABSTRACT This case report describes the outcome of treatment of dogs with advanced (deeply invasive) nasal planum squamous cell carcinomas with palliative or definitive radiation therapy. All dogs were diagnosed with nasal planum squamous cell carcinoma by histopathology, and their owners declined aggressive surgery. Dogs were treated with a cobalt-60 unit, definitive-intent radiation protocol consisting of 15 daily fractions (Monday-Friday) of 2.8 Gy, and palliative radiation protocol consisting of 4 fractions of 8 Gy performed once a week. Three dogs had T3 tumors and three had T4 tumors according to the WHO staging system. Two dogs had tumor complete remission and four had tumor partial remission. Survival time of dogs submitted to radiation therapy was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Squamous cell carcinoma; Oncology; Radiation therapy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100119

Avaliação metabólica de um dispositivo intravaginal polimérico para a administração de cálcio e magnésio em ruminantes
Provedor de dados: 45
Autores: Silva,G.P.T.; Farias,L.B.; Pereira,R.A.; Corrêa,M.N.; Pino,F.A.B. Del; Brauner,C.C.
RESUMO O objetivo do estudo foi avaliar a disponibilidade de cálcio (Ca2+) a partir de duas formas farmacêuticas (oral e intravaginal) e o seu efeito sobre o metabolismo de ruminantes. O estudo foi realizado na fazenda experimental da Universidade Federal de Pelotas, foram estudadas 24 ovelhas lactantes, divididas de forma randomizada em 4 grupos: dispositivo tratamento (DT); dispositivo controle (DC); oral tratamento (OT); e oral controle (OC). Os animais tratados receberam formiato de cálcio e cloreto de magnésio, as avaliações foram realizadas após a administração dos tratamentos. Foi feita avaliação de cálcio total (CaT), magnésio (Mg), proteínas plasmáticas totais (PPT), aspartato aminotransferase (AST), gama glutamil transpeptidase (GGT), ureia,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cálcio; Fármacos; Hipocalcemia; Magnésio.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100153

Clomipramina no tratamento da perseguição compulsiva da cauda em Bull Terrier - relato de caso
Provedor de dados: 45
Autores: Caramalac,S.M.; Caramalac,S.M.; Chimenes,N.D.; Palumbo,M.I.P.
RESUMO A perseguição compulsiva da cauda consiste em um distúrbio caracterizado por movimentos giratórios em círculos, lentos a rápidos com ou sem foco na cauda. É uma desordem comportamental comumente observada em cães da raça Bull Terrier, sendo mais frequente em machos, com início entre três e seis meses de idade. O diagnóstico é realizado com base no histórico do paciente junto com exames físico, neurológico e laboratoriais. O tratamento pode ser feito por meio do manejo ambiental e da retirada de fatores estressantes aliados a medicamentos antidepressivos. O objetivo deste artigo é relatar o caso de um Bull Terrier que apresentava perseguição compulsiva da cauda e teve evidente melhora clínica 75 dias após início do tratamento com clomipramina. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antidepressivos; Distúrbio comportamental; Neurologia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100125

Padronização do exame ultrassonográfico do prepúcio e da parte livre do pênis em bovinos
Provedor de dados: 45
Autores: Silva,N.A.A.; Silva,L.A.F.; Lima,V.H.; Cunha,P.H.J.; Cardoso,J.R.; Pedroso,A.C.B.R.; Silva,W.P.R.; Borges,N.C.
RESUMO A ultrassonografia é um exame complementar não invasivo ainda pouco utilizado na avaliação prepucial e sem descrições detalhadas da parte livre do pênis (PLP) de bovinos. Este estudo objetivou padronizar a ultrassonografia prepucial em bovinos hígidos da raça Nelore com um ano de idade e, para tanto, descreveu o aspecto da lâmina interna prepucial (LIP) e da PLP, determinando as principais janelas acústicas, a viabilidade da utilização de contraste no lúmen da cavidade prepucial (LCP) e o melhor posicionamento do animal para a realização do exame. O escaneamento foi realizado com os animais na posição quadrupedal e em decúbito lateral direito. Foram determinadas cinco janelas acústicas a partir do óstio até a identificação do recesso prepucial. Os...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ultrassonografia; Touro; Lâmina interna prepucial; Glande; Nelore.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100040

Ocorrência de ectoparasitas no roedor Oligoryzomys microtis em regiões ao norte do Departamento de La Paz, Bolívia
Provedor de dados: 45
Autores: Graça,M.S.C.; Basto,P.A.S.; Rico,A.; Martinez,J.; Sanchez-Roman,I.V.; Alandia,E.I.; Moya,M.I.; Revollo-Cadima,S.; Salazar-Bravo,J.
RESUMO O objetivo deste trabalho foi mapear e descrever a ocorrência de roedores e seus ectoparasitas nas regiões norte do departamento de La Paz, Bolívia. De abril a maio e julho a agosto de 2017, 80 indivíduos da espécie Oligoryzomys microtis foram capturados em armadilhas vivas. Uma amostra aleatória de 36 indivíduos foi analisada quanto à presença de ectoparasitas, encontrando um total de 458 ectoparasitas. Os roedores foram capturados em dois tipos de ambientes: floresta secundária e áreas cultivadas, sendo a área cultivada a área com maior captação de roedores. Dos ectoparasitas, Laelaps sp. foi o gênero com maior abundância e Mysolaelaps sp. o mais prevalente; o gênero Polygenis sp. é aparentemente descrito pela primeira vez na selva amazônica,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectoparasitas; Oligoryzomys; Roedores.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100191

Performance, carcass yield, and meat quality of broilers supplemented with organic or inorganic zinc
Provedor de dados: 45
Autores: Bueno,F.R.; Silva,C.A.; Oba,A.; Almeida,M.; Medeiros,L.G.; Pitarello,A.S.; Shinyashike,A.T.
ABSTRACT A total of 640 one-day-old Cobb broiler chicks, half male and half female, were reared up to 49 days of age. A completely randomized 2 × 4 factorial design was used. Experimental treatments consisted of four levels of organic zinc supplementation and one control (inorganic zinc supplementation) and two levels of sex (female and male), with four replicates of 16 birds per experimental plot. Animal performance, carcass and cut yields, and meat quality were evaluated. Feed intake increased with zinc supplementation. Broilers that received the lowest level of organic zinc showed better feed conversion than those fed an equivalent level of inorganic zinc. Increased levels of organic zinc reduced the abdominal fat content in females but impaired the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Birds; Color; Lipid oxidation; Oligoelement; Organic minerals; Meat pH.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100224

Antibacterial activity of chitosan biofilm for the conservation of fertile and table eggs
Provedor de dados: 45
Autores: Prado,R.O.F.; Tellez,I.G.; García,M.L.J.; Aldaco,L.L.E.; García,C.A.C.
ABSTRACT The aim of this study was to develop a chitosan biofilm against Salmonella enteritidis, for the conservation of fertile and table eggs. Two experiments were performed. Experiment 1: 400 specific pathogen-free table eggs were divided in a completely randomized design into four treatments, five replicates and each replicate with 20 table eggs. Experimental groups were assigned to control and 1, 5 and 10% chitosan treatment. The eggs were immersed in the chitosan solution. They were then exposed to Salmonella enteritidis and stored for 1, 24, 96 and 168h at 4ºC. The eggs were then washed with 10mL of physiological saline solution. Experiment 2: 80 specific pathogen-free fertile eggs were tested, the assays were assigned to control and 1, 5 and 10%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitosan; Fertile eggs; Table eggs; Salmonella enteritidis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100208

Effects of transrectal medicinal ozone in horses - clinical and laboratory aspects
Provedor de dados: 45
Autores: Jaramillo,F.M.; Vendruscolo,C.P.; Fülber,J.; Seidel,S.R.T.; Barbosa,A.P.; Baccarin,R.Y.A.
ABSTRACT Ozone (O3) therapy has been used for medical procedures for centuries; however, there are no extensive studies on its utilization in horses. This study aimed to evaluate the application of transrectal O3 on horses by physical and laboratorial evaluation, and production of reactive oxygen species (ROS). Sixteen healthy horses were separated in two groups: a control group (CG) and a group treated with O3 (TG). The TG animals received 1L of an oxygen and O3 mixture transrectally. The initial dose was 10µg/ml for the first two applications, 15μg/ml for the following two applications, and 20μg/ml for the next six applications. The CG animals received 1L of oxygen transrectally. In TG animals no variations in the physical examination were detected;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Red blood cell counts; Horse; Ozone therapy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100056

Comportamento de vacas da raça Holandesa em ordenha robotizada (Behaviour of Holstein cows in robotic milking)
Provedor de dados: 45
Autores: Córdova,H.A.; Cardozo,L.L.; Alessio,D.R.M.; Thaler Neto,A.
RESUMO O objetivo do trabalho foi avaliar o comportamento ingestivo de concentrado e de ordenha de vacas em lactação em sistema de ordenha robotizada (SOR) conforme a paridade. O experimento foi realizado de março a junho de 2014, em Castro, PR, com vacas da raça Holandesa, confinadas em free stall, ordenhadas automaticamente e classificadas de acordo com a ordem de parto (1, 2 e +3 partos). Os dados foram extraídos do software de gerenciamento, sendo consideradas as atividades de um dia por mês (24h), por quatro meses, no dia seguinte após a realização do controle leiteiro oficial. Os dados foram analisados por técnicas de análise multivariada (análise fatorial, canônica e de agrupamento), utilizando-se o pacote computacional SAS. O comportamento...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vacas em lactação; Estação de ordenha; Produção de leite; Sistema voluntário de ordenha.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100263

Efeito do hipotireoidismo materno na expressão espaço-temporal de mediadores imunológicos e população de células natural killers na decídua e na glândula metrial de ratas
Provedor de dados: 45
Autores: Souza,C.A.; Silva,J.F.; Ocarino,N.M.; Silva,C.L.R.; Gomes,L.A.; Assunção,G.S.M.; Silva,C.M.O.; Oliveira,K.P.; Serakides,R.
RESUMO Estudou-se o efeito do hipotireoidismo materno na expressão espaço-temporal de mediadores imunológicos e na população de células natural killers (NK) na decídua e na glândula metrial de ratas durante a gestação. Avaliou-se a detecção imunoistoquímica de interferon γ (IFNγ), do fator inibidor de migração (MIF), da interleucina 15 (IL15), do óxido nítrico sintase induzível (iNOS), a marcação com lectina DBA para evidenciação das células NK uterinas DBA+ e a expressão gênica de Ifnγ e Nos2. O hipotireoidismo aumentou o iNOS aos sete dias, a IL15 e o MIF aos 10 e 12 dias, o IFNγ e o MIF aos 14 DG e a expressão dos transcritos gênicos para iNos aos 12 e 19 dias e para Ifnγ aos 14 DG. O hipotireoidismo reduziu a imunomarcação de MIF e lectina DBA aos sete...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hipotireoidismo; Decídua; Glândula metrial; Imunologia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100177

Aloenxertos ósseos e enxerto sintético de hidroxiapatita em falha óssea ulnar em galinhas (Gallus gallus domesticus), aspectos radiográficos e histológicos
Provedor de dados: 45
Autores: Schmitt,B.; Santos,E.A.R.; Boos,M.Z.; Reis,K.D.H.; Vallim,A.C; Sonne,L.; Alievi,M.M.
RESUMO Dos atendimentos ortopédicos realizados em aves no HCV-UFRGS, 86% são fraturas, sendo aproximadamente 30% delas cominutivas com perda óssea expressiva, justificando a importância da utilização de enxertos em fraturas de aves. O objetivo deste trabalho foi avaliar dois aloenxertos e enxerto sintético de hidroxiapatita em defeito ósseo de galinhas. Utilizaram-se 30 galinhas separadas em três grupos: aloenxerto congelado em ultra-freezer (GUF), aloenxerto congelado em nitrogênio líquido (GNL) e enxerto sintético de hidroxiapatita deficiente em cálcio (GHA). Nos três grupos, os enxertos foram aplicados com placas e parafusos bloqueados de 2mm na ulna direita das aves, avaliando-se a evolução por meio de exames radiográficos até serem completados 90 dias...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aves; Ortopedia; Nitrogênio líquido; Placa bloqueada; Consolidação óssea.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100079

Metabolic stress and reproductive features in post-partum goats supplemented for a long period with detoxified castor meal as the source of dietary nitrogen
Provedor de dados: 45
Autores: Silva,L.M.; Oliveira,C.H.A.; Silva,A.M.; Montenegro,A.R.; Fernandes,C.C.L.; Silva,C.M.G.; Rossetto,R.; Rondina,D.
ABSTRACT This study evaluated the effect of detoxified castor meal on the reproductive performance, metabolic stress, milk production, and kid development in peripartum goats. The diet of the animals were with (DCM, n= 20) or without (WDCM, n= 21) detoxified castor meal during the entire gestation and until weaning, 60 days post-birth. No differences were observed in the gestation period, litter size, rate of multiple births, and mortality between the two groups. The postpartum plasma concentrations of progesterone remained below 1ng/mL in all animals, thus, confirming the absence of active corpora lutea. The thickness of sternum adipose tissue and loin area, levels of urea and cholesterol, milk production, and daily weight gain in the kids were low in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ricinus communis L; Postpartum; Lactation; Goat kids; Progesterone.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100136

Quantificação do DNA e genotipagem de biópsias de embriões bovinos Gir e Girolando produzidos in vitro
Provedor de dados: 45
Autores: Martins,J.M.C.L.; Camargo,L.S.A.; Silva,M.V.B.; Machado,M.A.; Reis,D.R.L.; Quintão,C.C.R.; Nogueira,L.A.G.; Oliveira,C.S.
RESUMO A biópsia embrionária associada à genotipagem permite a obtenção de informações genômicas antes mesmo da transferência dos embriões. Neste estudo, foram avaliadas amostras biopsiadas de blastocistos bovinos transferidos para receptoras (n=47), sob a hipótese de que a raça (Gir ou Girolando), o estádio embrionário (blastocisto ou blastocisto expandido) e a competência para estabelecimento de prenhez (positiva ou negativa) afetariam a quantidade e a qualidade do DNA da amostra obtida. O DNA foi extraído, amplificado, quantificado por eletroferograma e genotipado. O parâmetro call rate (CR) foi adotado para mensurar a qualidade da genotipagem. Obteve-se concentração de DNA de 86,07±171,66ng/µL e CR 0,73±0,17. O CR não variou em função da quantidade de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biópsia embrionária; Seleção genômica; Produção in vitro de embriões; Gir; Girolando.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100033

Assessment of the acid phosphatase CP01850 from Corynebacterium pseudotuberculosis in DNA and subunit vaccine formulations against caseous lymphadenitis
Provedor de dados: 45
Autores: Rezende,A.F.S.; Brum,A.A.; Bezerra,F.S.B.; Braite,D.C.; Sá,G.L.; Thurow,H.S.; Seixas,F.K.; Azevedo,V.A.C.; Portela,R.W.; Borsuk,S.
ABSTRACT The target cp1002_RS01850 from Corynebacterium pseudotuberculosis was used to construct a DNA and recombinant subunit vaccine against caseous lymphadenitis. Recombinant protein rCP01850 was expressed in Escherichia coli using pAE vector, and DNA vaccine was engineered with pTARGET vector. BALB/c mice were divided in five groups containing eight animals each, inoculated with: pTARGET/cp01850 as DNA vaccine (G1); rCP01850 plus Al (OH)3 as recombinant subunit vaccine (G2); pTARGET/cp01850 and a boost with rCP01850 plus Al (OH)3 (G3); pTARGET (G4); or Al (OH)3 (G5). Mice were inoculated and blood samples were collected on days 0, 21, and 42 for the analysis of total IgG, IgG1 and IgG2a by ELISA. In each group, five animals were challenged with Mic-6...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cp1002_RS01850 gene; Immunization; Recombinant protein; Aluminum hydroxide; Heterologous prime-boost strategy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100199

Acute-on-chronic subdural cranial hematoma in a dog: case report
Provedor de dados: 45
Autores: Bonelli,M.A.; Silva,I.C.C.; Fernandes,T.H.T.; Schwarz,T.; Costa,F.S.
ABSTRACT A ten-month-old male Yorkshire terrier dog was evaluated via CT four months after traumatic brain injury. The head CT scan showed dilated ventricles associated with a peripheral crescent-shaped collection of blood near the right parietal bone with a mineralized area. The visceral layer of the hematoma was hyperattenuating on the native scan and showed moderate contrast enhancement after administration of intravenous iodinated contrast medium. No fractures were identified in the calvarium. These findings were compatible with acute-on-chronic calcified subdural hematoma, which have been described with more detail in humans. This is the first report to include the description of the imaging findings related to this condition using computed tomography...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Head trauma; Traumatic brain injury; Computed tomography.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100131

Does supplementation of vitamin C, reduced glutathione or their association in semen extender reduce oxidative stress in bovine frozen semen?
Provedor de dados: 45
Autores: Pinto,S.C.C.; Almeida,D.S.; Alves,M.B.R.; Florez-Rodriguez,S.A.; Abreu Júnior,G.S.; Alves,N. Britto e; Celeghini,E.C.C.; Laskoki,L.M.; Souza,F.A.
ABSTRACT The aim of this study was to evaluate the addition of vitamin C, reduced glutathione and the association thereof to the bovine semen cryopreservation extender. The ejaculate from nine bulls were divided into four fractions, each corresponding to a treatment, namely: control group-semen diluted with Tris-yolk extender; vitamin C group-semen diluted in Tris-yolk extender supplemented with vitamin C (2.5mmol/mL); glutathione group-semen diluted in Tris-yolk extender supplemented with reduced glutathione (2.5mmol/mL) and associated group-semen diluted in Tris-yolk extender supplemented with vitamin C (1.25mmol/mL) and reduced glutathione (1.25mmol/mL). Afterwards, the semen was packed into French straws and submitted to cryopreservation using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reactive oxygen species; Sperm membranes; Spermatozoa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100009

Metabolic dynamics of native lambs fed with Tifton 85 hay or Maniçoba hay associated with the spineless cactus
Provedor de dados: 45
Autores: Soares,P.C.; Gouveia,L.N.F.; Silva,T.G.P.; O. Filho,E.F.; Carvalho,F.F.R.; Batista,Â.M.V.; Lima Júnior,D.M.; Cardoso,D.B.
ABSTRACT The objective of this study was to evaluate the metabolic response of native lambs fed Tifton 85 hay (Cynodon dactylon) or Maniçoba hay (Manihot pseudoglaziovii) associated with spineless cactus (Nopalea cochenillifera Salm Dyck). Sixteen Morada Nova lambs were used, with a mean initial weight of 19.36±1.48kg, distributed in a randomized block design, with two treatments and eight replications. Dry matter intake was higher for lambs fed Maniçoba hay compared to Tifton hay, while the body weight at slaughter was not influenced by diets. Regarding the blood metabolites, only the serum concentration of urea was influenced, with higher value observed in the lambs that fed the diet containing Tifton hay. When analyzing blood biomarkers, in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood biomarkers; Clinical biochemistry; Metabolism; Native breeds; Nutrition; Small ruminants.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100215

Infusão de morfina e cetamina, associada ou não à lidocaína, em gatas submetidas à ovariossalpingo-histerectomia
Provedor de dados: 45
Autores: Jesus,M.; Padilha,V.S.; Tocheto,R.; Comasetto,F.; Ronchi,S.J.; Oleskovicz,N.
RESUMO O objetivo deste estudo foi avaliar os efeitos analgésicos transoperatórios da infusão contínua de morfina e cetamina, associada ou não à lidocaína, em gatas submetidas à OSH eletiva. Foram utilizadas 16 fêmeas adultas, hígidas, pré-medicadas com acepromazina (0,1mg/kg) e morfina (0,5mg/kg), ambas pela via intramuscular, induzidas com cetamina (1mg/kg) e propofol (4mg/kg), pela via intravenosa, e mantidas sob anestesia geral inalatória com isoflurano a 1,4 V%. Os animais foram alocados aleatoriamente em dois grupos: grupo morfina, lidocaína e cetamina (MLK, n=8), que recebeu bolus de lidocaína (1mg/kg), pela via IV, seguido de infusão de morfina, lidocaína e cetamina (0,26mg/kg/h, 3mg/kg/h e 0,6mg/kg/h, respectivamente); e grupo morfina e cetamina...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Felinos; Analgesia multimodal; Infusão contínua; Anestésico local.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100161

Histopathologic alterationsof gill tissue in Siluriformes and Characiformes from the Middle Tocantins River in the Brazilian Amazon
Provedor de dados: 45
Autores: Bezerra,C.A.M.; Sousa,A.L.; Viana,D.C.
RESUMO As águas do rio Tocantins têm sofrido descargas de dejetos tóxicos que ameaçam a biota aquática. Para tanto, a investigação das brânquias de peixes atua como biomonitoramento, visto que esses órgãos respondem por meio de adaptações a xenobióticos. Este trabalho teve como objetivo avaliar a ocorrência de alterações morfológicas das espécies de Psectrogaster amazonica, Pimelodina flavipinnis e Pimelodus blochii. As coletas ocorreram nas estações chuvosa e seca. As brânquias de todos os espécimes coletados foram processadas de acordo com metodologia específica para protocolo de hematoxilina e eosina. As principais alterações histológicas observadas no período chuvoso foram: hiperplasia, destacamento do epitélio filamentar, fusão parcial e total das...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Freswater fish; Histopathological; Respiratory epithelium.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100285

Extragonadal malignant teratoma in a dog - case report
Provedor de dados: 45
Autores: Pêgas,G.R.A.; Monteiro,L.N.; Cassali,G.D.
ABSTRACT Teratomas are neoplasms thought to arise from germ cells which usually occur within gonads and are rarely described on extragonadal sites. The present study reports a case of a 15 year old female mongrel dog with a lumbosacral tumor. The tumor was microscopically composed of embryonic tissues with areas containing atypical undifferentiated cells, leading to the diagnosis of a malignant teratoma. Malignant teratomas are uncommon tumors in domestic animals.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Neoplasia; Germ cell; Teratoma; Extragonadal tumors.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100115

Perfil de ácidos graxos do leite de vacas Holandês x Gir alimentadas com silagem de milho e concentrado contendo ou não glicerina bruta
Provedor de dados: 45
Autores: Duque,A.C.A.; Oliveira,J.S.; Morenz,M.J.F.; Gama,M.A.S.; Borges,A.L.C.C.; Silva,R.R.; Lopes,F.C.F.
RESUMO O objetivo deste estudo foi avaliar o perfil de ácidos graxos (AG) do leite de vacas alimentadas com dietas à base de silagem de milho contendo 0% e 8,9% de glicerina bruta (GB) na matéria seca (MS). Foram utilizadas 18 vacas Holandês x Gir com 48±18 dias em lactação, produzindo 19,8±4,9kg/dia de leite. Utilizou-se delineamento de blocos ao acaso, com nove vacas/tratamento e duas medidas repetidas no tempo, com os resultados analisados por modelos mistos. A inclusão de GB na dieta não alterou a ingestão de MS, mas reduziu os consumos dos AG oleico, linoleico e α-linolênico. Os teores dos AG mirístico, palmítico, rumênico, vacênico, esteárico, oleico, linoleico, α-linolênico e CLA trans-10 cis-12 na gordura do leite foram semelhantes entre dietas. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ácido rumênico; Ácido vacênico; Biodiesel; Coproduto; Glicerol.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100243

Avaliação neurocomportamental e níveis de acetilcolinesterase cerebral em ratos expostos subcronicamente ao fipronil
Provedor de dados: 45
Autores: Barretto,M.L.M.; Horta,D.F.; Anselmo,F.; Godinho,A.F.; Oliveira,A.A.F.
RESUMO O fipronil é um inseticida de toxicidade seletiva amplamente empregado na agricultura e na medicina veterinária. Porém, há relatos de efeitos neurotóxicos dessa substância, que geram prejuízos para vertebrados. Avaliou-se a atividade locomotora, a coordenação motora e a atividade da enzima acetilcolinesterase cerebral em ratos expostos ao fipronil. Ratos Wistar machos adultos (n=15) receberam fipronil em dose de 30mg/kg, por via oral, durante 15 dias; o grupo controle (n=15) foi tratado com solução fisiológica, por via oral, no mesmo período. No 16° dia de experimentação, os animais foram submetidos aos testes de arena de campo aberto e hole board. No 17° dia, foram anestesiados e eutanasiados, procedendo-se à coleta de órgãos, e posteriormente foi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pesticidas; Fenilpirazóis; Neurotoxicidade; Arena de campo aberto; Hole board.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100169

Maintenance enteral electrolyte solutions for neonatal calves: sodium acetate and osmolarity effects
Provedor de dados: 45
Autores: Lima,A.P.; Ribeiro Filho,J.D.; Ermita,P.A.N.; Baptista Filho,L.C.F.; Avanza,M.F.B.; Viana,R.B.; Santos,P.V.M.; Silva,M.O.; Monteiro,L.C.; Dantas,W.M.F.
ABSTRACT The use of hypotonic electrolytic solutions in enteral fluid therapy is still understudied in calves. The objective of the present study was to evaluate the effects of maintenance enteral electrolytic solutions with different concentrations of sodium acetate and different osmolarities in calves. For this, 18 Holstein calves, six male and 12 female, 20 days old and weighing around 52kg, were used. The animals were randomly divided into three groups and each group received one of the treatments. The three electrolytic solutions contained the same components in different concentrations, resulting in a hyposmotic, an isosmotic and a hyperosmotic solution. Each animal was maintained in enteral fluid therapy for 12 hours with infusion rate of 15mL kg-1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diarrhea; Fluid therapy; Hypotonic solution; Volemia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100018

Folha de amendoeira como aditivo em dietas para Betta splendens
Provedor de dados: 45
Autores: Santos,E.L.; Oliveira,W.D.S.; Lima,M.R.; Silva,L.L.A.; Oliveira,J.M.; Silva,T.J.; Santos,C.I.; Soares,E.C.
RESUMO O objetivo do presente estudo foi avaliar o desempenho zootécnico, os parâmetrosmorfométricos, o comportamento social, a viabilidade econômica e a análise microbiológica da água de cultivo e de tecidos corpóreos de Betta splendens alimentados com folha da amendoeira Terminalia catappa (FFDA) como aditivo. Foram utilizados 28 machos de Bettas, acondicionados individualmente em aquários de 1,5L, por 50 dias. O experimento foi realizado em delineamento experimental inteiramente ao acaso, com quatro tratamentos: 0,00%; 0,25%; 0,50% e 0,75% de inclusão da FFAD e sete repetições. Ao término do experimento, foram avaliados os parâmetros: desempenho zootécnico (ganho de peso diário, consumo de ração, conversão alimentar aparente, taxa de eficiência...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prebiótico; Peixe ornamental; Terminalia catappa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100233

Antioxidant effect on viability of boar semen cooled to 15°C
Provedor de dados: 45
Autores: Martins,V.E.D.; Pinto,S.C.C.; Chaves,R.M.; Barros Filho,A.K.D.; Laskoski,L.M.; Souza,F.A.
ABSTRACT This study aimed to evaluate the addition of Vitamin C, reduced Glutathione and trolox on sperm characteristics of pork refrigerated semen. Six pigs were collected through the technique of gloved hand (10 ejaculates/animals). The semen was diluted in MR-A®. After the previous evaluations, the treatments were added: Control group: diluent only; Vitamin C Group: 200μM/mL Vitamin C; Trolox Group: 200μM/mL Trolox; Glutathione group: 2.5mM/ml Reduced glutathione. The semen was stored in thermal boxes and placed inside the refrigerator at 15oC and evaluated at D0, 12, 48, 72 hours. After 30 hours of incubation, each treatment was divided into two equal fractions and the same concentration of antioxidants was added in one of the parts. The results show...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glutathione; Sperm; Trolox; Vitamin C.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100145

Efeito do ácido docosa-hexaenoico e do Trolox® no diluidor de refrigeração de sêmen de garanhões da raça Mangalarga Marchador
Provedor de dados: 45
Autores: Aguiar,C.S.; Barros,C.H.S.C.; Machado,W.M.; Allaman,I.B.; Barbosa,L.P.; Snoeck,P.P.N.
RESUMO Objetivou-se avaliar o efeito do ácido docosa-hexaenoico (DHA), associado ou não ao Trolox®, na refrigeração de sêmen de garanhões da raça Mangalarga Marchador. Foram refrigerados 10 ejaculados nos diluidores: D1) BotuSêmen® (BS; controle); D2) BS + 30ngmL-1 de DHA (BS30DHA); D3) BS30DHA + 40µM de Trolox® (BS30DHA40T); D4) BS + 50ngmL-1 de DHA (BS50DHA); D5) BS50DHA + 40µM de Trolox® (BS50DHA40T). Após 48 horas de refrigeração, foram avaliados os parâmetros de movimento espermático, a integridade estrutural e funcional da membrana plasmática e a longevidade espermática. Todos os diluidores testados preservaram, de forma semelhante, a motilidade, a linearidade, a retilinearidade, a amplitude do deslocamento lateral da cabeça, a frequência do...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidante; Ácidos graxos; Espermatozoide; Criopreservação; Equino.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100071

Prevalence of Angiostrongylus cantonensis and Angiostrongylus costaricensis in Achatina fulica snails in the municipality of São Bernardo do Campo (SP, Brazil)
Provedor de dados: 45
Autores: Cardoso,C.V.; Vaccas,D.C.; Bondan,E.F.; Martins,M.F.M.
RESUMO Angiostrongylus cantonensis e Angiostrongylus costaricensis são nematoides parasitas que residem em roedores e usam gastrópodes como hospedeiros intermediários. Achatina fulica, conhecida como caramujo-gigante-africano, é um hospedeiro intermediário que desempenha importante papel na dispersão de A. cantonensis e A. costaricensis, patógenos zoonóticos que causam, respectivamente, meningoencefalite eosinofílica e angiostrongilíase abdominal em humanos. O objetivo deste estudo foi o de coletar caramujos (A. fulica, n=90) de oito regiões diferentes (Rudge Ramos, Baeta Neves, Planalto, Demarchi, Dos Alvarengas, Batistini, Montanhão, Rio Grande) da cidade de São Bernardo do Campo (SP) para detecção molecular de A. cantonensis ou A. costaricensis pela...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Achatina fulica; Angiostrongylus cantonensis; Angiostrongylus costaricensis; Prevalence; City of São Bernardo do Campo.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100273

Dimensões da patela relacionadas à massa corporal do cão para emprego na confecção de prótese: estudo em cadáver
Provedor de dados: 45
Autores: Okano,B.S.; Colorado,S.J.; Drummond,L.R.; Varon,J.A.C.; Carmona,E.O.; Corteze,A. A.; Rodriguez,I.D.M.; Rezende,C.M.F.
RESUMO O objetivo deste trabalho foi mensurar as dimensões da patela de cadáveres caninos e avaliar sua relação com a massa corporal. Para a realização das medidas patelares, foram utilizados 70 cadáveres de cães adultos, com massa corpórea de 1 a 50kg, sem evidência clínica de afecção na articulação femorotibiopatelar. Com auxílio de um paquímetro, foram mensurados os comprimentos externo e interno, a largura externa no terço médio, a largura e a espessura internas nos terços proximal, médio e distal das patelas. Também foram mensuradas a largura nos terços proximal, médio e distal, a profundidade nos terços proximal, médio e distal do sulco troclear; essas medidas foram exclusivamente internas. Observou-se, de forma geral, forte correlação entre as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomia patelar; Prótese patelar; Luxação de patela.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100107

Treatment of a femoral septic nonunion in a dog with interlocking nail stabilization associated to corticospongious bone autograft and greater omentum flap: case report
Provedor de dados: 45
Autores: Menezes,M.P.; Costa,R.C.; Conceição,M.E.B.A.M.; Minto,B.W.; Dias,L.G.G.G.
ABSTRACT Chronic septic bone nonunion requires a well-designed therapeutic planning, demanding a multimodal treatment to achieve bone consolidation and elimination of infection. A successful case of an association of the major omentum flap with surgical stabilization with an interlocking nail for treatment of a femoral septic nonunion in dog is reported. The patient had partial functional return of the limb 30 days after surgery, negative bacterial culture with radiographic signs of bone healing and total functional return of the limb at 90th days after the surgical procedure.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Complication; Orthopaedics; Osteomyelitis; Planning.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100087

Seroprevalence of toxoplasma gondii infection in goats in the five northwestern provinces of China
Provedor de dados: 45
Autores: Wang,Y.; Qin,X.; Chen,Y.; Xing,J.; Gao,J.; Qiu,D.
RESUMO O objetivo do presente estudo foi investigar a soroprevalência de infecção com Toxoplasma gondii (T. gondii) em cabras em cinco províncias do noroeste da China. Soroprevalência foi determinado usando o kit de teste de ensaio de imunoabsorção enzimática (ELISA). A soroprevalência geral foi 21.23% (197/928). Análise estatística revlou que diferenças significativas foram observadas em fêmeas (P= 0.048, OR= 0.567, 95% CI= 0.309 a 1.041) e nos grupos ≥ 2 (P= 0.002, OR= 0.330, 95% CI= 0.224 a 0.488). Nenhuma diferença estatisticamente significativa foi observada entre diferentes províncias. Nossos resultados indicam que a infecção com T. gondii, que pode ter implicações importantes sobre a saúde pública, teve diferenças significativas em sexo e idade, mas...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Toxoplasma gondii; Seroprevalence; Goat; Five northwestern provinces.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100277

Identification of microchips through diagnostic imaging helps to determine the longevity of the golden lancehead (Bothrops insularis) in captivity
Provedor de dados: 45
Autores: Garcia,V.C.; Unruh,S.M.; Almeida-Santos,S.M.
RESUMO As serpentes vindas da natureza e encaminhadas para centros de reabilitação ou de pesquisa têm uma idade incerta. Na natureza, esses animais, muitas vezes atingem um tamanho corpóreo menor do que os indivíduos cativos devido a uma menor frequência de alimentação. Assim, a idade de uma cobra recém-chegada da natureza é geralmente estimada com base em seu tamanho corpóreo, o qual é comparado com dados em cativeiro. A utilização dos meios de diagnóstico por imagem tem auxiliado a medicina na análise das serpentes em cativeiro, mediante avaliação da estrutura óssea, dos órgãos e de alterações. Este trabalho relata o uso de diagnóstico por imagem (radiografia e ultrassonografia) para identificar a presença de microchips e, consequentemente, estimar a...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Snake; Radiology; Ultrasound; Body size; Age.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100281

Antisepsys and profilatic antimicrobial therapy in prevention of surgical site infection of horses
Provedor de dados: 45
Autores: Canola,P.A.; Faria,A.P.P.A.; Paula,V.B.; Ávila,F.A.; Cardozo,M.V.; Rivera,G.G.
ABSTRACT The efficacy of an antisepsis protocol comprising chlorhexidine gluconate and ethyl alcohol in combination with prophylactic antimicrobial therapy in controlling surgical site infection in horses was studied. To that purpose, seven mixed breed horses received potassium penicillin and gentamicin at least 30 minutes prior to surgery. The surgical site was scrubbed with chlorhexidine gluconate and rinsed with ethyl alcohol. Samples were collected at four time points: (A) - before and (B) - immediately following shaving of the hair coat, (C) - at the end of antisepsis procedures, and (D) - at the end of the surgical procedure. Duration of surgery was recorded. Samples were cultured in three different culture mediums: Mitis Salivarus (Streptococcus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorhexidine gluconate; Culture media; Potassium penicillin; Staphylococcus sp; SSIs.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100049

Efeito da somatotropina bovina recombinante (rbST) na produção in vivo e na maturação in vitro de oócitos bovinos da raça Sindi
Provedor de dados: 45
Autores: Ribeiro,L.G.M.; Bastos,B.D.M.; Silva,M.N.P.; Oliveira,R.A.; Pinto,A.F.B.P.; Lima,I.R.A.; Melo,L.H.A.; Sousa,R.K.C.; Gonçalves,P.R.; Bonfa,H.C.; Cordeiro,M.F.; Nogueira,D.M.; Barbosa,R.S.; Lopes Júnior,E.S.
RESUMO A fim de avaliar o efeito de diferentes doses da rbST sobre a dinâmica folicular, a produção e a maturação in vitro de oócitos, 20 vacas Sindi, divididas em três grupos, receberam um dispositivo de progesterona intravaginal, estradiol e PGF2α, além de 2mL de solução salina (grupo controle), 250 (grupo rbST 250) ou 500mg de rbST (grupo rbST 500). Cinco dias depois, realizou-se a ovum pick up, e os complexos cumulus-oócitos (CCOs) recuperados foram selecionados, classificados e maturados in vitro. Os dados de contagem foram comparados pelo procedimento glht (General Linear Hypothesis Test), e os dados em porcentagem foram submetidos ao qui-quadrado, no programa estatístico R, onde as diferenças foram consideradas significativas quando P&lt;0,05. Não...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CCO; Vaca; OPU; Ovário; Superestimulação.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100025

Dosagem sérica do marcador tumoral CA 15.3 em cadelas portadoras de neoplasias mamárias pelo método de eletroquimioluminescência
Provedor de dados: 45
Autores: Araújo,P.B.; Campinho,D.S.P.; Mendonça,F.S.; Evêncio Neto,J.
ABSTRACT The objective of the present study was to analyze the serum levels of the tumor marker Ca15.3 in healthy bitches and those with mammary neoplasms, correlating results with tumor type, clinical staging, time until presentation, and presence of ulceration and vascularization. For the study, 30 bitches with mammary tumors and 30 healthy bitches (control group) were selected. Histopathology was performed for identification of tumor type, and blood was collected for measurement of serum concentration of the marker via the chemiluminescence method using a commercial kit. A higher frequency of malignant neoplasms was observed (76.7%), with a higher quantity of carcinoma in mixed tumor (26.7%). Regarding serum concentration of the marker Ca15.3, there was...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cadela; Antígeno 15.3 ao cancer; Tumor mamário.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100290

Beta diversity patterns of Bromeliaceae growing on rocky cliffs within the Atlantic Forest in southern Brazil
Provedor de dados: 49
Autores: Melo,Edilaine Andrade; Waechter,Jorge Luiz.
Abstract: In recent years there has been increasing attention in patterns of β-diversity and mechanisms related to variations in species composition. In this study, we evaluated beta diversity patterns of bromeliads growing on cliffs immersed in Atlantic Forest. We hypothesized that the species composition varies according to the spatial scale, inferring that there is a replacement of species influenced mainly by environmental factors. The study was carried out on sandstone cliffs included in contiguous but distinct vegetation formations: Evergreen and Seasonal forests. Twenty-four vertical rocky outcrops were sampled. The spatial variation in species composition was evaluated by two β-diversity components, turnover and nestedness. Multivariate analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sandstone outcrops; Bromeliads; Evergreen forest; Seasonal forest; Niche Theory; Neutral Theory.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100211

Rediscovering a forgotten scientific collection in the Rio Grande do Norte State, Brazil: The herpetological collection of the zoologist José Santiago Lima-Verde
Provedor de dados: 49
Autores: Coelho-Lima,Alcéster Diego; Jucá,Marcelo Almeida De Sousa; Fonseca,Ellen Beatriz Fontes da; Medeiros,Leticia Cely Vieira de; Soares,Pamella Barbara Coutinho; Cunha,Paulo Victor Araujo; Passos,Daniel Cunha.
Abstract: The zoologist Dr. José Santiago Lima-Verde (1945-2019) made a number of major contributions to the field of animal biology in the northeastern Brazil, in particular through his research with snakes. While employed as a professor at Escola Superior de Agricultura de Mossoró, currently the Universidade Federal Rural do Semi-Árido, Prof. Lima-Verde established a herpetological collection which remained forgotten for a number of decades. In the present study, we describe the revitalization of this collection, which included the updating of the identification of the species and the compilation of the metadata on the collection, which is now named the Coleção Herpetológica Lima-Verde. We catalogued 80 specimens representing 30 species, including 23...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Caatinga; Northeastern Brazil; Scientific Collections; Semiarid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100205

Checklist of dragonflies and damselflies (Insecta: Odonata) of the Amazonas state, Brazil
Provedor de dados: 49
Autores: Koroiva,Ricardo; Neiss,Ulisses Gaspar; Fleck,Günther; Hamada,Neusa.
Abstract: Here we provide a checklist of the odonates from Amazonas state, Brazil. We registered 324 species and 101 genera, making Amazonas the Brazilian state with the most Odonata species recorded. The families with the highest number of species were Coenagrionidae with 32 genera and 101 species, followed by Libellulidae with 28 genera and 100 species and Gomphidae with 12 genera and 45 species. Some regions of Amazonas state remain poorly explored, such as the southern area, and large municipalities, such as São Gabriel da Cachoeira. This work underlines the importance of the biological diversity from Amazonas state and the Amazonian Biome for Odonata species richness in Brazil and shows that many areas in the world’s largest tropical forest have not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic insects; List of species; Anisoptera; Zygoptera; Amazon; Neotropical region.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100307

After 10 years the myth of Crotalaria spp. and dragonflies remains alive
Provedor de dados: 49
Autores: Brito,Joás; Louback-Franco,Nayara; Mendoza,Cristian; Nonato,Flávia; Juen,Leandro; Michelan,Thaisa.
Abstract The struggle to control insect-borne diseases can lead to make rash decisions. For instance, the controversial method of planting of Crotalaria spp. to attract predatory dragonflies can be used to control insect vectors of dengue fever and several other medically significant insect-borne diseases. Nevertheless, there is no scientific support for this assumption. Despite the lack of evidence, in Brazil, there remains a multitude of online articles and grey literature sources still promote Crotalaria planting as a means to prevent dengue fever. Here we discuss the reasons why Odonata would not be attracted by Crotalaria and, therefore, it cannot not be considered as an efficient method for vector control. Finally, the best practice to avoid the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mosquitoes; Tropical diseases; Zika; Invasive species.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200401

A new species of freshwater amphipod (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil
Provedor de dados: 49
Autores: Streck-Marx,Morgana Taís; Castiglioni,Daniela da Silva.
Abstract: The current study describes a new species of Hyalella found in a natural pond at the municipality of Palmeira das Missões, located in the northwestern region of state of Rio Grande do Sul, southern Brazil. The new species differs from other species found in state of Rio Grande do Sul (Hyalella bonariensis, H. castroi, H. kaigang, H. imbya, H. georginae, H. gauchensis, H. montenegrinae and H. pampeana) in the type and number of setae on uropods, on telson and on the inner face of gnathopod 1. Besides, Hyalella palmeirensis is morphologically similar to H. curvispina, especially in the shape and number of setae of uropods. However, H. palmeirensis differs from H. curvispina in having only two simple setae on telson, the inner face of gnathopod 1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater crustaceans; Hyalella; Peracarida; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100203

A new inventory for fishes of headwater streams from the rio das Cinzas and rio Itararé basins, rio Paranapanema system, Paraná, Brazil
Provedor de dados: 49
Autores: Frota,Augusto; Ota,Renata Rúbia; Deprá,Gabriel de Carvalho; Ganassin,Maria Julia Mileo; Graça,Weferson Júnio da.
Abstract: The rio das Cinzas and rio Itararé basins are important tributaries of the rio Paranapanema, a major left-bank tributary of the upper rio Paraná basin. The upper reaches of both drainages intersect the northern portion of the APA Escarpa Devoniana (Devonian Escarpment Environment Protection Area, EPA), an area considered crucial for the preservation of biodiversity. This study aimed to provide an ichthyofaunistic inventory for headwater streams of the rio das Cinzas and rio Itararé basins, both within and off of the borders of the EPA, increasing the knowledge about the species already known from streams in the rio Paranapanema system. We found 32 fish species, representing five orders and 12 families. Siluriformes was the richest order followed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Altitudinal gradient; Devonian Escarpment; Faunal exchange; Upper rio Paraná.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100303

Richness, diversity patterns, and taxonomic notes of amphibians from the Tocantins state
Provedor de dados: 49
Autores: Silva,Leandro Alves da; Carvalho,Priscila Santos; Pereira,Elvis Almeida; Fadel,Renata Moleiro; Dantas,Silionamã Pereira; Brandão,Reuber Albuquerque; Santana,Diego José.
Abstract: Herein, we provide the first comprehensive amphibian checklist for the State of Tocantins, North of Brazil, based on field sampling, literature data, and specimens deposited in zoological collections. We performed field surveys from 2012 to 2019 in 12 Tocantins municipalities, totaling 376 days of sampling effort. We analyzed 25 papers from the literature and examined 1311 specimens from collections and collected 750 during field surveys. We recorded 90 amphibian species distributed in 12 anurans and two caecilians families. At least seven undescribed species along the state were recorded. We also present new records for 20 species for the state, nine of them corresponding to Amazonian species, four Cerrado endemic, one Caatinga species, and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonian Forest; Amphibia; Savanna; Cerrado.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100306

Dragonflies and damselflies from the West of Minas Gerais, Brazil: checklist and new records
Provedor de dados: 49
Autores: Vilela,Diogo Silva; Koroiva,Ricardo; Tosta,Thiago Henrique Azevedo; Novaes,Marcos Carneiro; Guillermo-Ferreira,Rhainer.
Abstract: The knowledge about the richness and distribution of Brazilian dragonflies is still being unveiled. Over the years, inventories, reviews, and descriptions have been made. These contributions, apart from the taxonomic value, also provide valuable data on the occurrence of species and their distributions, which are rarely accompanied by notes about natural history and behavior. Keeping this legacy in mind, we collected dragonflies between 2011 and 2019 in Minas Gerais state, which resulted in the registration of 90 species, 41 genera and 11 families. Our results also increase distribution data, an important tool for conservation actions, and provide additional information about habitat and biology of species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zygoptera; Anisoptera; Biodiversity; Species list; Inventory.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100308

A new synonym for Micropholis gardneriana (Sapotaceae) with complete description, anatomy and distribution notes
Provedor de dados: 49
Autores: Ferreira,Angélica Cândida; Araújo,Josiane Silva; Almeida Jr,Eduardo Bezerra de; Zickel,Carmen Silvia.
Abstract: In the present work, we synonymize Micropholis compta under M. gardneriana due to the overlap of morphoanatomical characters and the absence of distinctive attributes, verified during taxonomic and anatomical study of the genus Micropholis for Brazil. This study provides an updated description of M. gardneriana, including macro- and micro-morphological data, a distribution map, and comments on conservation status, ecological and taxonomy.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Chrysophylloideae; Leaf anatomy; Neotropics; South America; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100501

Morphological differences in a population of Rufous-collared Sparrow (Zonotrichia capensis, Statius Müller, 1776) (Passerine, Emberizidae) at different elevations in the Tropical Andes
Provedor de dados: 49
Autores: Busi,Ana; Cardona-Salazar,Leydy J.; Castillo,Daniela Gómez; Ossa-López,Paula A.; Rivera-Páez,Fredy A.; Vásquez,Rodrigo A.; Castaño-Villa,Gabriel J.
Abstract Populations that breed along steep elevation gradients show diverse physiological and morphological changes in response to the different environmental conditions. The latter has been discussed by Bergmann’s and Allen’s ecogeographic rules about body and appendage sizes and environmental temperature. We compared morphometric measures (mass, bill width, tarsus, wing, and tail length) of a Zonotrichia capensis population in two localities at different elevations with similar latitudes and photoperiods on the western slope of the Colombian Central Andes. We compared a Low Elevation locality (LE) at 1800 m a.s.l. and a High Elevation locality (HE) at 3853 m a.s.l. that have approximate wind speeds of 1.3 m/s and 8.4 m/s, respectively. During 12 months...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Wing length; Tail length; Adaptive traits; Paramo; Territory; Ecogeographic rules.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200501

Stream fish from recently deforested basins in the Meridional Amazon, Mato Grosso, Brazil
Provedor de dados: 49
Autores: Casatti,Lilian; Brejão,Gabriel Lourenço; Carvalho,Fernando Rogério; Silva,Hugmar Pains da; Pérez-Mayorga,María Angélica; Manzotti,Angelo Rodrigo; Zeni,Jaquelini de Oliveira; Ramires,Bruno Martins Santos; Langeani,Francisco.
Abstract: The replacement of tropical forests to production systems is one of the leading causes of riverine ecosystem alterations. However, current assemblages’ composition may also result from the time since these transformations have begun. Therefore, the knowledge of diversified historical scenarios can facilitate the accomplishment of actions that involve the aquatic environments recovery. In this study, an inventory of stream fish was carried out in basins whose deforestation was intensified in the last 20 years, to compose a baseline for ecological and taxonomic studies. The habitat, physical and chemical variables, and the fish assemblages from 60 streams in the northwest region of the state of Mato Grosso, in the Aripuanã and Juruena river basins,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inventory; Neotropical ichthyofauna; Deforestation; Baseline; Characidae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100309

Feeding strategy and morphology as indicators of habitat use and coexistence of two loricariid fishes from a Brazilian coastal stream
Provedor de dados: 49
Autores: Manna,Luisa Resende; Miranda,Jean Carlos; Rezende,Carla Ferreira; Mazzoni,Rosana.
Abstract: We aimed to evaluate the relationship between form and function of two Loricariidae species (Hypostomus punctatus and Parotocinclus maculicauda) from a Neotropical coastal stream. We performed morphological-dietary analysis and discussed their coexistence strategies, as well. We hypothesized that both species use similar food resources according to their morphology but differences in habitat use facilitate their coexistence. In order to test this hypothesis, morphology, diet and habitat use were analyzed for both species. Trophic variance and the Pianka Niche Overlap index were calculated to explore the differences in trophic niche. Correlations between species abundance and water flow were applied to test habitat use. Principal Component...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecomorphology; Trophic niche overlap; Stream-dwelling fish; Atlantic rainforest.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100212

Neriidae (Diptera: Schizophora) of the Northeastern Brazil: new records and an identification key
Provedor de dados: 49
Autores: Sepúlveda,Tatiana A.; Gomes,Lucas R. P.; Limeira-de-Oliveira,Francisco.
Abstract: Here, we provide a list of seven species collected in the Brazilian states of Ceará, Maranhão and Piauí, housed in the Coleção Zoológica do Maranhão (CZMA), Cerantichir peruana (Hennig, 1937), Glyphidops durus (Cresson, 1926), Glyphidops filosus (Fabricius, 1805), Glyphidops flavifrons (Bigot, 1886), Glyphidops vittatus (Cresson, 1912), Nerius pilifer Fabricius, 1805 and Nerius plurivittatus Bigot, 1886. Representatives of Neriidae are recorded and mapped for the first time in the states of Ceará, Maranhão and Piauí, while the species C. peruana, G. durus, G. flavifrons and G. vittatus represent new records for the Northeast Region of Brazil. A key for the identification and diagnoses of Northeastern Brazilian neriids are provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ceará; Faunistic survey; Maranhão; Nerioidea; Piauí.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100209

Type of shelter and first description of the echolocation call of disk-winged bat (Thyroptera devivoi)
Provedor de dados: 49
Autores: Rosa,Renato O. L.; Silva,Claysson H. A.; Oliveira,Thiago F.; Silveira,Mauricio; Aguiar,Ludmilla M. S.
Abstract: Thyropteridae is a family of bats endemic to the Neotropical region, and Thyroptera devivoi is the only species in the family that occurs exclusively in forest patches within savannas of northern South America and north of the Brazilian Cerrado. Primary data on the species are still scarce. Therefore, in this study our objective was to fill knowledge gaps on geographical distribution, roost-use, and echolocation for the species. We observed a T. devivoi colony of 15 individuals living under a dead palm leaf. The bats used the leaf as a roost for at least four days. After capturing one individual, we confirmed the species identification via skull size and the oblong shape of the adhesive disk. The new record reinforces the association of this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Echolocation; Brazil; Cerrado; Chiroptera; Roost; Thyropteridae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200201

Population and reproductive traits of a freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from northwest of the state of Rio Grande do Sul, Brazil
Provedor de dados: 49
Autores: Castiglioni,Daniela da Silva; Limberger,Marcio; Castro,Vanessa da Silva; Ubessi,Francieli.
Abstract The study of population and reproductive traits provides information about the ecological structure of natural populations. This study aimed to characterize dynamics and reproductive traits of Hyalella palmeirensis from a natural pond from southern Brazil. The amphipods were sampled monthly (August 2012 to July 2013) by a person with the aid of a hand net for 20 minutes. Ovigerous females and pre-copulatory pairs were individualized in the field. A total of 12,325 individuals were sampled, being 1,421 males, 6,983 females (including 215 ovigerous females) and 3,921 juveniles. Paired and unpaired males were significantly greater in size than females. There was a positive correlation between body size (CL) of paired males and females. Males and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fecundity; Body size; Hyalella palmeirensis; Sex ratio; Reproduction; Recruitment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200204

Ichthyofauna from tributaries of Urubu and Amazonas rivers, Amazonas State, Brazil
Provedor de dados: 49
Autores: Pereira,Rayane da Silva; Silva,Rayanna Graziella Amaral da; Morales,Bruno Ferezim; Souza,Sidney dos Santos; Hinnah,Rafael; Takahashi,Erico Luis Hoshiba; Ota,Rafaela Priscila.
Abstract: The Amazonas River basin comprises the world’s highest fish species diversity. Anthropogenic interferences in aquatic environments represent a pressure over the maintenance of ecological stability and biodiversity. We inventoried the ichthyofauna of 13 disturbed/modified tributaries of Urubu and Amazonas rivers in the region of the middle Amazon River, between June 2018 and March 2019. A total of 164 species were captured, represented by 11 orders, 37 families and 96 genera. Characiformes was the richest order, followed by Cichliformes and Siluriformes. The most representative families in number of species were Cichlidae, Serrasalmidae, and Characidae. Hemigrammus levis was the most abundant species, and Acarichthys heckelii the most common,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon fish; Environmental impacts; Ichthyofauna diversity; Inventory.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200301

Aquatic Oligochaete Communities in Amazonian Streams, Saracá-Taquera National Forest, Pará, Brazil
Provedor de dados: 49
Autores: Bevilacqua,Maria Silvina; Marchese,Mercedes Rosa; Felix,Rodrigo Weber; Leal,João José Fonseca; Barros,Marcos Paulo Figueiredo de; Bozelli,Reinaldo Luiz; Esteves,Francisco de Assis.
Abstract: The aim of this study was to analyze aquatic oligochaete distribution in relation to water column physicochemical variables, structural environmental variation, and predominant substrates in the preserved Amazonian streams of the Saracá-Taquera National Forest (FLONA Saracá-Taquera), northwest Pará, Brazil. Oligochaetes are widely used as bioindicators for monitoring aquatic environments as they are very sensitive to pollution and environmental changes. Physicochemical and structural variables were measured from 100 stream segments in order to understand the distribution of oligochaetes in Amazonian streams. Biotic samples were collected using Surber samplers in three of the most predominant substrate types in each segment. PERMANOVA testing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic macroinvertebrates; Biomonitoring; Tropical streams; Substrates; Stream hydrology; Mining activities.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100202

Small-sized fish: the largest and most threatened portion of the megadiverse neotropical freshwater fish fauna
Provedor de dados: 49
Autores: Castro,Ricardo M. C.; Polaz,Carla N. M.
Abstract: We introduce the work providing a synthetic description of the diversity and phyletic structure of freshwater fish in the Neotropical Region, especially emphasizing that of Brazil. This is accompanied by a discussion about environments of fish from small to medium sized to large, taking into account how it shaped their respective biologies/ecologies, as well as what they imply for their use by humans. We present, as figures, the results of our exploratory analysis of Brazilian Red Book of Threatened Species of Fauna (2018), focusing on the small-sized ones, with up to 15 cm of standard length. We continue to present the main human impacts in small fish environments, along with those suffered by medium to large fish environments, and then follow...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Small fishes; Brazilian ichthyofauna; Endangered fishes; Conservation strategies; Biodiversity policies.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100601

Checklist of the fishes from Jamari River basin, in areas under influence of dams, Rondônia, Brazil
Provedor de dados: 49
Autores: Oliveira,Rianne Caroline de; Deprá,Gabriel de Carvalho; Zawadzki,Cláudio Henrique; Silva,João Carlos Barbosa da; Graça,Weferson Júnio da.
Abstract: The Madeira River is the most extensive tributary of the Amazon River and has the largest diversity of fishes in the world. On its right bank, the Madeira River receives the Jamari River, in which the first hydroelectric power plant (HPP) in State of Rondônia, Samuel HPP, was built. Besides this, other dams were built in the Jamari River and its tributaries, however, the available information in the scientific literature about the ichthyofaunistic diversity of this basin is rare. This work aims to provide an ichthyofaunistic inventory in a region of the Jamari river basin, in the State of Rondônia, where three small hydropower plants (SHPs) were implemented. The ichthyofauna was sampled in 16 expeditions between August 2015 and December 2018....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Species list; Madeira River; Amazon basin; Freshwater fish.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100304

Taxonomic Distinctness of the subterranean fauna from Peruaçu Caves National Park, state of Minas Gerais, eastern Brazil
Provedor de dados: 49
Autores: Monte,Bruno Gabriel Oliveira; Bichuette,Maria Elina.
Abstract: Limiting factors of subterranean environments, high relative air humidity and, especially, permanent darkness, represent ecological filters for organisms and biodiversity patterns of surface and subterranean communities display wide disparities. Subterranean diversity and singularity are, thus, better expressed when the common presence of rare and endemic species are considered. Our study aimed to describe the diversity of the cave fauna from 14 caves from Peruaçu Caves National Park (PCNP), eastern Brazil. We analyzed the regional diversity using the index that includes the average taxonomic distinction (TD - Δ +, AvTD). We recorded 1,674 individuals belonging to 10 Classes and 237 morphotypes, 11 troglobitic and two troglomorphic and possible...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Gruta Olhos d’ Água cave; Troglobites; Subterranean environment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100210

Using distribution models to estimate blooms of phytosanitary cyanobacteria in Brazil
Provedor de dados: 49
Autores: Guimarães,Ariane; Silva,Pablo Henrique da; Carneiro,Fernanda Melo; Silva,Daniel Paiva.
Abstract: The multiple uses of aquatic ecosystems by humankind and the continuous interference of their activities have contributed to the emergence of potentially toxic cyanobacteria blooms. Here, we firstly created a database of occurrences of cyanobacteria blooms in Brazil through a systematic review of the scientific literature available in online platforms (e.g. Web of Science, Capes Thesis Catalogue). Secondly, we carried out ecological niche models with occurrence data obtained from these studies to predict climatically suitable areas for blooms. We select 21 bioclimatic variables input environmental data. We used five modeling methods for the current climate scenario: (1) Maxent; (2) Support Vector Machines; (3) Random Forest; (4) Maximum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater ecosystems; Species distribution models; Bloom occurrence; Cyanobacteria.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200202

Fish fauna from the Paranapanema River basin, Brazil
Provedor de dados: 49
Autores: Jarduli,Lucas Ribeiro; Garcia,Diego Azevedo Zoccal; Vidotto-Magnoni,Ana Paula; Casimiro,Armando Cesar Rodrigues; Vianna,Norberto Castro; Almeida,Fernanda Simões de; Jerep,Fernando Camargo; Orsi,Mario Luis.
Abstract: The Paranapanema River is an important, extensively explored tributary of the Upper Paraná River basin. The fish fauna of the Paranapanema River has been investigated since the 1990s; however, no study has characterized the richness of fish species throughout the basin, including the main channel of the river, marginal lagoons, its tributaries, and sub-tributaries. Thus, we performed a review with 90 independent studies conducted at the upper, middle, and lower sections of the basin. We recorded 225 species, of which 165 were native, and 60 were non-native. We found that 77% of the species within the basin are composed by Siluriformes and Characiformes. Cichliformes had a significant number of non-native species established in impoundment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater; Neotropical region; Species inventory; Upper Paraná River.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100201

The genus Tryblionella W. Smith (Bacillariaceae, Bacillariophyta) in southern Brazil salt marshes
Provedor de dados: 49
Autores: Bertolli,Lucielle Merlym; Talgatti,Dávia Marciana; Nascimento,Thamires Mariah da Silveira; Torgan,Lezilda Carvalho.
Abstract: Tryblionella is a large epipelic genus, widespread from fresh to marine waters. Most of the studies including the genus are based only in light microscopy. Few recent studies are exclusively dedicated to Tryblionella and the ultrastructure of some species is still little known. In this paper we present eleven species of Tryblionella found in epiphyton and microphytobenthos in Patos Lagoon salt marshes. All the species are described, illustrated in light and scanning electron microscopy and comments about their taxonomy, distribution and ecology are provided. Two taxa are reported for the first time in the State of Rio Grande do Sul and one in Southern Brazil. The number of species registered in this study comprises nearly a half of the number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diatoms; Patos Lagoon; Periphyton; Taxonomy; Ultrastructure.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100204

Insect galls of the Reserva Biológica União, Rio de Janeiro, Brazil
Provedor de dados: 49
Autores: Maia,Valéria Cid; Siqueira,Erick de Souza.
Abstract: Several inventories of insect galls have been performed in the Atlantic Forest of Rio de Janeiro, mostly in restingas, whereas the other phytophysiognomies remain poorly sampled. The present study inventoried the insect galls of Reserva Biológica União (RJ), a protected area comprising mainly Ombrophilous Forest. Field work was performed every two months from January to October, 2013. Insect galls were collected, photographed, characterized and transported to the laboratory. Adults were obtained by rearing and immature stages by gall dissection. The insects were deposited in the Cecidomyiidae Collection of the Museu Nacional. A total of 153 gall morphotypes were found on plants representing 37 plant families, 69 genera, 55 species and 53...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ombrophilous Forest; Atlantic Forest; Insect-plant interaction; Associated fauna.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100305

Fishes community composition and patterns of species distribution in Neotropical streams
Provedor de dados: 49
Autores: Cavalheiro,Laísa Wociechoski; Fialho,Clarice Bernhardt.
Abstract: The ichthyofauna of streams in the Neotropical region is not yet fully known. This study aims to investigate the ichthyofauna composition of six streams of the Ijuí River sub-basin, Rio Grande do Sul State, inserted in the Uruguay River basin, as to contribute to the knowledge of fishes species richness and distribution in the south of Brazil. Sampling was carried out between July 2015 and May 2016, bimonthly, using the technique of electric fishing to collect the fishes. Spatial variations (per sampled stream) in the ichthyofauna composition were tested with a permutational multivariate analysis of variance. In total, we collected 5,029 individuals from 55 species, 13 families and five orders. From these species, 17 are endemic to the Uruguay...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance; Characidae; Heptapteridae; Loricariidae; Richness; Uruguay River basin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100302

Freshwater mollusks from three reservoirs of Piauí, northeastern Brazil
Provedor de dados: 49
Autores: Silva,Edson Lourenço da; Rocha,Adriana Josefa da; Leal,Manuella Feitosa; Santos,Orianna dos; Sousa,João Hemerson de; Silva,Antônia Rafaela Viana da; Dantas,Karina Ketelen Silva; Rulim,Erika Maria Matos; Castro,Emerson Santos; Pacheco,Ana Carolina Landim; Pinheiro,Tamaris Gimenez.
Abstract: The pronounced dry season determines the characteristics of the semiarid region of Brazil. Numerous small reservoirs are built to overcome this condition, accumulating multiple uses and causing important changes in the landscape and the local biota. Considering the limited amount of information about the malacofauna of reservoirs, mainly in the Northeast region of the country, this inventory provides a list of mollusks from three important reservoirs located in the city of São Julião, state of Piauí. The collections were carried out monthly between May/2017 and April/2018, sampling a total of 11,149 mollusks, corresponding to the species Melanoides tuberculata (Müller, 1774) (n = 9,724), Biomphalaria straminea (Dunker, 1848) (n = 1,361) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ampullariidae; Gastropoda; Planorbidae; Species list; Thiaridae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100301

Species richness and composition of snake assemblages in poorly accessible areas in the Brazilian Amazonia
Provedor de dados: 49
Autores: Frazão,Luciana; Oliveira,Maria Ermelinda; Menin,Marcelo; Campos,Juliana; Almeida,Alexandre; Kaefer,Igor L.; Hrbek,Tomas.
Abstract: Snakes are a diverse group of terrestrial vertebrates of the order Squamata. Despite that, in the Amazonian biome, information about distribution and identification of snakes is limited when compared to other groups. Additionally, in Amazonia there is a sampling bias towards areas geographically close to urban centers and more densely populated areas. This in turn leads to false distribution gaps in poorly accessible areas of Amazonia. In this article we report the composition of snake assemblages in six areas of the Brazilian Amazonia, based on field sampling conducted over four years using standardized methods. We sampled 70 species from eight families: Typhlopidae (n=1), Leptotyphlopidae (n=1), Anillidae (n=1), Boidae (n=5), Colubridae (n=15),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon Basin; Brazil; Ophidia; Sampling methods; Squamata.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100207

Accessing the subterranean ant fauna (Hymenoptera: Formicidae) in native and modified subtropical landscapes in the Neotropics
Provedor de dados: 49
Autores: Martins,Mila Ferraz de Oliveira; Thomazini,Marcílio José; Baretta,Dilmar; Brown,George Gardner; Rosa,Marcio Gonçalves da; Zagatto,Mauricio Rumenos Guidetti; Santos,Alessandra; Nadolny,Herlon Sérgio; Cardoso,Guilherme Borges Xarão; Niva,Cintia Carla; Bartz,Marie Luise Carolina; Feitosa,Rodrigo Machado.
Abstract: Several studies have characterized and delimited subterranean ant assemblages. Soil extraction, one of the methods employed to access this fauna, employs the removal of monoliths. One of the most widely used methods for the extraction of soil sampling is called TSBF (developed by the Tropical Soil Biology and Fertility Programme). This method provides relevant data about the species associated with the soil. In the present study we characterized assemblages of subterranean ants using the TSBF method in different subtropical areas of the Neotropics. We considered two sampling designs in different localities. The first design resulted in 315 TSBF samples obtained from layers at distinct depths. The second design resulted in 270 TSBF samples and 270...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil; Hypogaeic; Brazil; Monoliths; Pitfall.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100206

Reptiles of the Serra das Torres Natural Monument: using the Rapid Assessment method to fill a knowledge gap in the Atlantic Forest of southeastern Brazil
Provedor de dados: 49
Autores: Oliveira,Jane C. F.; Santos,Rafael dos; Lopes-Silva,Mateus Leite; Barros,Lorena da Penha Vasconcelos; Risse-Quaioto,Bárbara; Militão,Cátia Moura; Fatorelli,Pedro; Belmoch,Flávia A. L.; Castro,Thiago Marcial de; Rocha,Carlos Frederico Duarte.
Abstract: Data on the composition of local reptile assemblages in several Brazilian ecosystems can still be considered relatively restricted in scope in most cases. In this study, we conducted surveys in the Serra das Torres Natural Monument, located in the municipalities of Atílio Vivacqua, Muqui, and Mimoso do Sul, using the Rapid Assessments method (RAP) during 30 days in the rainy season of 2018. We sampled actively for approximately 1320 hours with a 6-10 person crew, supplemented by 720 hours of passive sampling (30 bucket-days) using pitfall traps with drift fences. We recorded 34 reptile species during our sampling method (2 amphisbaenid, 11 lizards, and 21 snakes) and an occasional encounter, after the end of sampling, that added a chelonian...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphisbaenia; Brazilian state of Espírito Santo; Community; Herpetofauna; Lizards; Snakes; Squamata.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200203

Uses of wild vertebrates in traditional medicine by farmers in the region surrounding the Serra do Conduru State Park (Bahia, Brazil)
Provedor de dados: 49
Autores: Teixeira,Joanison Vicente dos Santos; Santos,Jade Silva dos; Guanaes,Deyna Hulda Arêas; Rocha,Wesley Duarte da; Schiavetti,Alexandre.
Abstract: Wild and domestic animals and their by-products are important ingredients in the preparation of medicines traditionally used in folk medicine, present in various human cultures since antiquity. However, the decline in the number of species in neotropical regions as a result of hunting for various purposes, including food, medicine and magico-religious use, has placed some species - especially endemic species - at risk of extinction. In this context, the present study aimed to identify the wild vertebrate species used in folk medicine in five communities in the region surrounding the Serra do Conduru State Park (PESC), Bahia, Brazil. Forty-five hunter-farmers were interviewed, citing 23 species, from which 17 raw materials are extracted for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ethnozoology; Zootherapy; Conservation; Serra do Conduru.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100208

Evaluation of the community structure of marine sponges in reef patches of the southern Caribbean, Costa Rica
Provedor de dados: 50
Autores: Araya-Vargas,Alexander; Busutil,Linnet; García-Rojas,Andrea; Pereira-Chaves,José Miguel; Piedra-Castro,Liliana.
ABSTRACT Marine sponges fulfill many critical functions to coral reefs. In turn, variations in the community structure of the poriferans may indicate changes in the environmental conditions of the ecosystems where they live. However, their study has been scarce in the Caribbean of Costa Rica, mainly in the ecological field. Therefore, the community structure of these organisms was evaluated in four reef patches (Perezoso, Pequeño, Coral Garden, and the 0.36) and it was determined whether it could be explained by sedimentation, substrate, and depth. Relative abundance (RA) and relative coverage (RC) for each species, sponge density, and diversity indices (species richness, Shannon heterogeneity, Pielou's evenness, and Simpson's dominance) were calculated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Porifera; Coral reef; Sedimentation; Substrate; Depth.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100039

Filling a gap: first record of the shell-less neritacean gastropod Titiscania limacina Bergh, 1890 in Colombia
Provedor de dados: 50
Autores: Londoño-Cruz,Edgardo.
ABSTRACT Recording marine biodiversity is a fundamental task and species distributions are at the very core of it. This paper is the first report of Titiscania limacina, a shell-less neritacean, in Colombia. This species was recorded in the intertidal of a rocky ecosystem at Gorgona National Natural Park, Pacific coast. This discovery fills a gap of this species distribution in the Tropical Eastern Pacific and calls attention to biodiversity monitoring, given the potential of this understudied Colombian coast to produce more and interesting findings of new species for the region, in particular, or for science, in general.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical Eastern Pacific; Gorgona Island; Sea-slug.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300223

Seasonal incidence of red tides in the Bay of Santa Marta and adjacent sectors, Colombian Caribbean
Provedor de dados: 50
Autores: Arbeláez M,Natalia; Franco-Angulo,Julián; Espinosa,Luisa F.
ABSTRACT In order to describe the environmental and climatic conditions associated with the occurrence of six red tide events between 2010 and 2017, in Santa Marta (Colombian Caribbean), biological and physicochemical information during these events was collected. Additionally, precipitation data and the Oceanic Niño Index (ONI) between 2010 and 2017 were consulted. The results showed that the dinoflagellate Cochlodinium sp. was responsible for three events that occurred in October 2010, October 2011 and November 2015, reaching a maximum densities of 5 x 106 cells L-1. These events were associated with an increase in rainfalls and seawater surface temperature (29.7 °C) and a decrease in salinity (&lt; 35.5). The Mesodinium cf. rubrum ciliate was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Red tides; Algae blooms; Climatic variability; Colombian Caribbean.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200049

Approximation to the diet of Thalassoma lucasanum (family Labridae) in the coral reef of La Azufrada, Gorgona Island, Eastern Tropical Pacific
Provedor de dados: 50
Autores: Palacios-Narváez,Stephania; Valencia,Bellineth; Giraldo,Alan.
ABSTRACT The Cortez rainbow wrasse, Thalassoma lucasanum, is an abundant reef fish of the Eastern Tropical Pacific (ETP). Unlike other species of the genus Thalassoma that are recognized as cleaners, in T. lucasanum this behavior is rare, since it feeds mainly on invertebrates through foraging. However, information on the trophic ecology of this species is limited, especially in the ETP. In this study, we characterize the feeding habits of T. lucasanum in Gorgona Island (ETP) from analyzing its gut contents and calculating its trophic niche. Mollusks were the main food resource of T. lucasanum, being this the most important and frequent prey item found in 100 % of the stomachs analyzed (n = 5). In terms of biomass, crustaceans had the greatest contribution...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coral reef fish; Stomach content; Trophic interactions; Colombian Pacific.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300251

Characterization of physical variables at La Escollera, a human-made coastal lagoon in Santa Marta, Colombian Caribbean
Provedor de dados: 50
ABSTRACT Coastal lagoons are a focus of primary production and a refuge for biodiversity due to their relative confinement and low depth. La Escollera is a human-made coastal lagoon in El Rodadero, Santa Marta (Colombian Caribbean), excavated in the early 1980s to hold a marina and its fringes planted with mangroves. To generate a baseline of physical variables that contribute to the nderstanding of water circulation and its influence on ecosystem attributes, salinity, temperature, sea level and light penetration data are outinely obtained through electronic recorders and handheld sensors. Salinity and temperature data from January 2017 to February 2018 ollowed the seasonal pattern of the open sea in the Santa Marta area, alternating between lower...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal lagoons; Marinas; Tides; Salinity; Temperatur.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200025

Contribution of the Marine Protected Areas of the National Natural Park System to the ecosystems representativeness of Colombia
Provedor de dados: 50
Autores: Alonso C.,David; Corredor-Rubiano,Ivonne.
ABSTRACT An analysis of representativeness of marine and coastal ecosystems was carried out in the 18 Marine Protected Areas (MPAs) administered by the System of National Natural Parks of Colombia (SPNN) and their changes in 2020 compared to 2010. The Caribbean increased the representativeness of mangroves, seagrasses, sedimentary bottoms, and saline beaches. In the Pacific, estuaries representativeness, sedimentary bottoms, mangroves, intertidal mudflats, sandy beaches, and seamounts increased. Deep-sea corals were included as a new ecosystem for the SPNN. From the representativeness ranges determined for this analysis, it was found that the only ecosystem with no representativeness (0 %) (Deep-sea corals) became overrepresented (≥ 60 %). The number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Representativeness gaps; Marine conservation; Conservation planning; Aichi target 11; Convention of Biological Diversity.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300275

Evaluation of the selectivity of gillnets and handlines for the capture of the blue runner (Caranx crysos) in areas of marine influence of the Tayrona National Natural Par
Provedor de dados: 50
Autores: Altamar,Jairo; Wong-Lubo,Juan; de la Hoz-M.,Javier; Martinez-Dallos,Iván.
ABSTRACT A greater knowledge of the selectivity of fishing gear allows determining the capacity to select the sizes and shapes of the species caught, in addition to providing useful information for their conservation and use. This study determined the selectivity parameters of gillnets (7.0, 7.6 and 10.2 cm of mesh size) and J hooks (n.° 7, 9 and 10), used in the artisanal catches of the blue runner (Caranx crysos), in different fishing sites in the Santa Marta region. The SELECT method was used to determine the selectivity parameters, while the Kurskall-Wallis test was used to evaluate differences in the catch per unit of effort (CPUE) between the mesh sizes and the evaluated hook gauges. The results demonstrate that the log-normal model better describes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Selectivity; Gillnet; Handline; Caranx crysos; Caribbean Sea of Colombia.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300209

Diet and trophic niche breadth of the neotropical cormorant [Nannopterum brasilianus (Gmelin, 1789)] in the Flora and Fauna Sanctuary Ciénaga Grande de Santa Marta, Caribbean Colombia
Provedor de dados: 50
Autores: Tette-Pomarico,Aliano; López-Peña,Arístides; Franke-Ante,Rebeca; Duarte,Luis Orlando.
ABSTRACT The neotropical cormorant (Nannopterum brasilianus) is a piscivorous bird with colonial nesting. It is distributed from southern North America to Argentina. The largest colony of N. brasilianus in Colombia is located in the locality of Punta Blanca, in the Flora and Fauna Sanctuary Ciénaga Grande de Santa Marta (FFS CGSM), in the lagoon complex with same name (LC CGSM). The diet and niche width of N. brasilianus were analyzed from pellets collected on the western edge of the Punta Blanca nesting colony during the breeding season of 2017. Prey identification was based on mainly on the morphology of the fish otoliths found in these pellets (n = 64). There were eight fish species identified in the diet of N. brasilianus of which three are new records...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acuatic birds; Swamps; Coastal ecosystems; Phalacrocoracidae.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300193

Temporal space-variation of fish larvae in the Gulf of Guayaquil, Ecuador
Provedor de dados: 50
Autores: Calderón-Peralta,Gregoria; Ayora-Macías,Gabriela; Solís-Coello,Pilar.
ABSTRACT This study presents the density, taxonomic composition, spatial and temporal distribution of fish larvae in the Gulf of Guayaquil, as well as the relationship with some physical-chemical variables. Samples were collected at 16 stations, taken in the first nautical mile of the external and internal estuary of the gulf, located in front of the province of Guayas and northwest of the island of Puná, during June to December 2012. Surface trawls were carried out with a simple conical network (mesh eye: 300 μm; mouth diameter: 0.3 m; length: 1.2 m). Temperature, salinity, and transparency were measured before each drag. Significant differences were detected between zones, registering higher temperatures, lower salinity, and transparency in the interior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ichthyoplankton; Gulf of Guayaquil; Hydrographic variables; Estuary; Ecuador.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100135

Estimation of the ecological and human health risk of mercury in a mangrove area of the La Puntilla estuary, El Oro province, southern Ecuador
Provedor de dados: 50
Autores: Velásquez-López,Patricio Colón; López-Sánchez,Ivonne Yadira; Rivera-Velásquez,María Fernanda.
ABSTRACT Present study focused on the evaluation of total mercury concentration and the estimation of ecological risk (Er), the ecological risk index (IR); and the toxic risk or hazard quotient (HQ) for human health in a mangrove area that borders the mouths of the Chaguana and Siete rivers, in La Puntilla estuary in the south of Ecuador. For the determination of the Er, RI, and HQ, we identified three indicators of mercury contamination: sediments, mangrove root, and soft tissue of the bivalve mollusk Anadara tuberculosa. In the mangrove area that borders the mouth of the Chaguana river, the mercury concentration fluctuated between 0,11-0,06 mg/kg in sediments, 0.06-0,01mg/kg in mangrove root, with a more consistence presence of A. tuberculosa, but one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecological risk index; Mercury; Anadara tuberculosa; Mangrove ecosystem.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100081

Current assessment of the Acropora palmata and Acropora cervicornis populations in Tayrona National Natural Park, Colombian Caribbean
Provedor de dados: 50
Autores: García-Urueña,Rocío; Garzón-Machado,Marco; Sierra-Escrigas,Silvia.
ABSTRACT The last assessment in terms of extension, status, and living coral cover (%) of Acropora palmata (29) and A. cervicornis (12) formations in Tayrona National Natural Park was done in 2001 and published in 2004. These formations were evaluated again between 2016 and 2018, including a new formation in Aguja Island, considering the same variables, with the addition of colony condition. For A. palmata, 24 formations were found with a reduction in area of 28.9 %. Mean coral cover increased about 2.0 %, with a broad size frequency distribution and an important proportion of colonies affected by damselfish territories (Stegastes). In A. cervicornis the area was reduced in 99.3 % and only one formation was found in Nenguange, although two new small...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acroporids; Coral reef formations; Population demography.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300137

Seasonal variation of the community of copepods in the eastern sector of the Gulf of Cariaco, Sucre state, Venezuela
Provedor de dados: 50
Autores: Márquez-Rojas,Brightdoom; Tróccoli,Luis; Roaf,Evelyn Zoppi de.
ABSTRACT Copepods are the most numerous group of zooplankton in tropical coastal systems; they are mainly affected by salinity gradients, as occurs in the eastern sector of the Gulf of Cariaco. This study purposed to study the temporal and spatial variations in the structure of the copepod community during June, July, August, and September 2009 (rainy season) and October, November, and December 2009 and January 2010 (dry season). Samples were collected with a standard 60 cm diameter zooplankton net with a 330 μm mesh at the surface level. Temperature, salinity, and dissolved oxygen were taken in situ with a multi-parameter probe (YSI). Salinity presented a marked monthly variability, with values between 32.5 ± 1.56 and 38.5 ± 0.25 UPS in the rainy and dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seasonal changes; Copepods; Gulf of Cariaco; South-eastern Caribbean.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100113

Effect of Bacillus firmus C101 on the growth of Litopenaeus vannamei Boone (White Shrimp) post-larvae, and Brachionus plicatilis s.s. Müller (Rotifer)
Provedor de dados: 50
Autores: Ruiz-Toquica,Jordan Steven; Becerra-Real,Laura Milena; Villamil-Díaz,Luisa Marcela.
ABSTRACT The growing demand for aquaculture protein suggests seeking biotechnological alternatives that improve the cultivation of species of commercial interest. In this study, Bacillusfirmus C101 was evaluated as a growth promoter and probiotic potential, which was characterized and subsequently administered (106 CFU mL-1 * day) in post-larvae of white shrimp (Litopenaeus vannamei) and rotifers (Brachionusplicatilis sensu stricto). B. firmus C101 was observed to have the tolerance to bile salts, strong phosphatase activity, and antimicrobial activity against pathogens such as Vibrio alginolyticus and Aeromonas hydrophila, among others. On the other hand, after its administration for three weeks to postlarvae of shrimp, it caused a significant increase (p...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Probiotic; Growth promoter; Bacillusfirmus; White shrimp; Rotifers.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100063

First record of the lion’s paw sea-cucumber Euapta godeffroyi Semper, 1868 (Holothuroidea: Apodida: Synaptidae) in Gorgona Island, Colombian Pacific
Provedor de dados: 50
Autores: Londoño-Cruz,Edgardo.
ABSTRACT Holothurians correspond to 20-25 % of all known species of echinoderms. In the Colombian Pacific, 34 species have been recorded, of which 11 have been recorded on Gorgona Island. This is the first report of the lion’s paw sea-cucumber Euapta godeffroyi on the island. The specimen was collected by scuba diving in the subtidal coralline patch known locally as El Arrecifito del Muelle, at a depth of approximately 2 m. It was about 80 cm long and between 2 and 3 cm in diameter. The ossicles of the body wall basically correspond to anchors and anchor plates; the latter have tiny ramifications at the base of the central axis. The present report fills a gap in the distribution of this species for the Tropical Eastern Pacific.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distribution; Coral reef; Biodiversity; Echinoderms.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300229

Association of Sea Surface Temperature and the abundance of the Brown Booby (Sula leucogaster) according to the state of development in the Gorgona National Natural Park
Provedor de dados: 50
Autores: Perlaza-Gamboa,Alejandro; Giraldo,Alan; Payán,Luis Fernando; Estela,Felipe A.
ABSTRACT Variation in the physicochemical conditions of the sea can influence the distribution and abundance of seabirds by affecting the trophic structure of the pelagic environment. For this reason, we aimed to evaluate the association between the abundance of three developmental stages (chicks, juveniles, and adults) of the Brown Booby (Sula leucogaster etesiaca) and the sea surface temperature (SST) and its thermal anomaly (ANOM) in Gorgona Island, Colombian Pacific. These trends were assessed by performing cross-correlations and generalized linear models. Each developmental stage showed a different abundance tendence linked to SST and ANOM variation. It is suggested that these trends are due to the fact that increased sea temperature may be associated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Time delay; Prey; Brown Bobby; Survival; Sea surface temperature.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300031

Relationship between environmental variables and growth of Pteria colymbus (Mollusca Bivalvia: Pteriidae), at three cultivation depths
Provedor de dados: 50
Autores: Freites,Luis Felipe; Guevara,Miguel; Márquez,Adrián; Revilla,Jormil; Narváez,Mariela; Lodeiros,César.
ABSTRACT We studied the influence of environmental variables associated with three water depths (2, 6 and 10 m) on shell growth, soft tissues dry mass (STDM) and survival of the Caribbean winged oyster Pteria colymbus (Roding, 1798). chlorophyll-a (Chl-a), dissolved oxygen, particulate organic matter (POM) and temperature were studied at each depth. Oysters were placed in 135 plastic baskets with five individuals in each basket. Three baskets at each depth were chosen at monthly intervals for measurements of biometric parameters, biofouling, and survival. At the end of the study, dry mass of the individuals grown at 10 m was significantly lower (Kruskal-Wallis non-parametric test KW, P &lt; 0.05) with the highest values of STDM corresponding to oysters...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biofouling; Environment; Depth; Oyster; Survival.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100009

Spongia (Heterofibria) sucrensis sp. nov. (Dyctioceratida: Spongiidae): a new sponge species from the Colombian Caribbean
Provedor de dados: 50
Autores: Colón,Jesús David; Marín-Casas,Dairo.
ABSTRACT The new species Spongia (Heterofibria) sucrensis sp. nov, that was collected in breakwaters in the municipality of Coveñas, department of Sucre (Colombian Caribbean) is described. This is a massive sponge, with erect and creeping lobes or branches; skeleton of ascending primary fibers cored with foreign material; secondary and pseudotertiary fiber meshes cored dominate the skeleton; lighter pseudotertiary fibers connected to the other fiber types or forming a reticulum within secondary fibers meshes. This finding constitutes the first record and description of a species of the subgenus Heterofibria for Colombia and the Caribbean, which raises to nine the species number of the genus for the Caribbean and three for Colombia.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caribbean; Spongia (Heterofibria); New species; Spongiidae; Porifera.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200067

First report of a female hawksbill turtle, Eretmochelys imbricata, in the Conservation Mosaic Bahía Málaga, Colombian Pacific
Provedor de dados: 50
Autores: Barrientos-Muñoz,Karla G.; Valencia Díaz,Miller; Hinojosa Romero,Carlos Andrés; Valencia-González,Santiago; Diazgranados,María Claudia; Sevilla Dueñas,Edward Leonardo; Ramírez-Gallego,Cristian.
ABSTRACT The Eastern Pacific hawksbill turtle is one of the most threatened management units in the world. In the Colombian Pacific it has been detected in feeding areas and in juvenile and / or sub adult’s stages. Its nesting areas and season are unknown to the country. On February 24th, 2020, the first female hawksbill turtle for the Colombian Pacific was reported, in the Conservation Mosaic of Bahía Málaga. The minimum curved carapace length was 90 cm, the curved carapace length nuchal-tip was 90.5 cm, the curved carapace width was 73.6 cm and its weight was 69 kg. The presence of a female and being the main feeding and residence area for juvenile and sub adult of the species in the Pacific of Colombia makes it essential to continue systematic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hawksbill turtle; Critically Endangered; Colombian Pacific; Eastern Pacific.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300289

Cryptobenthic fishes in the Uramba National Natural Park Bahía Málaga (Colombia), Tropical Eastern Pacific
Provedor de dados: 50
Autores: Castellanos-Galindo,Gustavo Adolfo; Medina-Contreras,Diana; Lazarus,Juan Felipe; Cantera-Kintz,Jaime Ricardo.
ABSTRACT Cryptobenthic fishes contribute significantly to the trophic dynamics of coastal ecosystems. This study aimed at determining the composition of this assemblage and testing if its structure differs temporally and spatially in the Uramba National Natural Park Bahía Málaga (Tropical Eastern Pacific). Fish assemblages were collected using artificial traps in three zones, between June 2008 and August 2009. Twenty-six fish species belonging 11 families were recorded. Gobiidae and Labrisomidae were the most representative families (species: 34.6 % and individuals: 66 %). Species richness and abundance increased in a gradient from the interior to the exterior of the park. Using multivariate statistic techniques, a spatial pattern in assemblage structure...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryptic ichthyofauna; Gobiidae; Labrisomidae; Estuarine ecology; Rocky reefs.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300119

Somatic growth rates of the Hawksbill Turtle, Eretmochelys imbricata, in Gorgona Natural National Park, Colombia, between 2004 and 2018
Provedor de dados: 50
Autores: Cañas-Uribe,Mariana; Payán,Luis F.; Amorocho,Diego F.; Páez,Vivian P.
ABSTRACT The Hawksbill Turtle, Eretmochelys imbricata, is globally assessed as Critically Endangered, and information in the Eastern Pacific Ocean is limited. For this reason, this investigation evaluated the somatic growth rates in an immature hawksbill sea turtle aggregation using capture-mark-recapture on the coral reefs at Playa Blanca and La Azufrada in the Gorgona Natural National Park, Colombia. Between 2004 and 2018, we made 89 captures of 49 hawksbill individuals. The mean curved carapace length (CCL) obtained was 41.6 cm (range 32-58 cm), and the mean straight-line carapace length (SCL) was 39.1 cm (range 30.0-54.1 cm), showing these reefs to be critical foraging grounds for immature individuals. The mean body condition index was 1.3 (range...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sea turtle; Cheloniidae; Tropical Eastern Pacific; Body condition index; Foraging areas.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300013

Abundance of the invasive lionfish Pterois volitans in the coastal coral reefs from Colombian Caribbean
Provedor de dados: 50
Autores: Chasqui,Luis; Rincón-Díaz,Natalia; Vanegas,María Juliana.
ABSTRACT The abundance of the invasive lionfish Pterois volitans was assessed through visual censuses conducted in 2015 and 2016 at 54 sites in six localities with coral reefs across the Colombian Caribbean coast. The invader was observed across locations and in most of the dives, with sighting frequency of 88 %, abundance values from 0 to 9.7 ± 2.1 ind/250 m2 (388 ind/ha), and 0.8 ± 1.3 ind/250 m2 (32 ind/ha) as total mean. The average density was similar to values reported in other works that counted lionfish in a broad spatial scale on the invaded area and the highest value approximated the maximum density estimated in Colombia and other locations around the Caribbean.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Southern Caribbean; Invasive alien species; Underwater visual census; Lionfish density.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100157

Ecosystems services vulnerability of Uramba Marine Protected Area
Provedor de dados: 50
Autores: Uribe-Castañeda,Natalia; Satizabal,Carlos Andrés; Herrera Orozco,Leonardo; Cantera Kintz,Jaime Ricardo.
ABSTRACT Systems of Uramba Marine Protected Area (MPA), like marine and coastal systems worldwide, sustain a great variety of ecosystem services (ES) (i.e. coastal protection, climate regulation, or food provision, etc.). Anthropogenic and natural stressors (i.e. coastal erosion, sea level rise, or overfishing, etc.) can transform, degrade, or limit the supply of ecosystem services. This study explores the vulnerability of Uramba MPA ecosystem services to anthropogenic and natural stressors. Stressors and ecosystems services were characterized by a literature review, an expert’s workshop, fieldtrips for validation, and georeferencing. To calculate the vulnerability of ecosystem services, the magnitude of each stressor, their risks, and their resilience...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Stressors; Resilience; Risk; Colombian Pacific; Tropical Eastern Pacific.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300095

Comparison of the upwellings of the Colombian Guajira and eastern Venezuela
Provedor de dados: 50
Autores: Gómez Gaspar,Alfredo; Acero P.,Arturo.
ABSTRACT In the southern Caribbean, there are two main upwelling areas, the Colombian Guajira and eastern Venezuela. However, fishing production is highly dissimilar, even though in the Guajira the wind intensity is stronger and theoretically the upwelling is more intense. For this reason, it should have a higher fishing production than Venezuela, which is not the case. The possible reasons for this important difference are presented, detailing aspects related to wind, hydrography, nutrient concentration, phytoplankton biomass, continental shelf, river contribution, island presence and other factors. Eastern Venezuela has greater fertility and fishing production because the Subtropical Subsuperficial Water mass is what supplies the water upwelling during...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical upwelling; Colombian Guajira; Eastern Venezuela; Southern Caribbean; Ecology.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200131

Community structure of turf algae in interactions with massive corals in Tayrona National Natural Park, Colombian Caribbean
Provedor de dados: 50
Autores: Gómez-Cubillos,Catalina; Gavio,Brigitte; Zea,Sven.
ABSTRACT Algal turfs are currently the most abundant benthic component on most coral reefs. Their wide distribution, functional role and positive response to factors that stress corals confirm their importance in the functioning of reef ecosystem. It has been shown that species composition, structural development and sediment retention influence their capacity to kill and displace adjacent live coral tissue. In this study in two reefs of the Tayrona National Natural Park (Colombian Caribbean), the variation in structure of turfs growing on and in direct interaction with massive live corals was determined, and its structural complexity was related with its sediment retention capacity. For that, the taxonomical composition was determined, and canopy height,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coral reefs; Algal turfs; Interactions; Structure of algal assemblages; Sediment retention; Colombian Caribbean.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300045

Ichthyofauna of the marine area of Vía Parque Isla Salamanca, Magdalena, Colombia
Provedor de dados: 50
Autores: Sánchez-Rodríguez,Diana C.; Acero P.,Arturo; Viloria-Maestre,Efraín; Villa-Navarro,Francisco A.; Saldaña,Patricia.
ABSTRACT Monthly samplings of fish catches obtained by traditional beach seine were carried out between 2006 and 2007, recording an important portion of the Caribbean ichthyofauna of the continental shelf:10 114 individuals belonging to 16 families and 31 species. The families Carangidae and Sciaenidae are mentioned among the most widely represented in the Caribbean, while the most abundant species was Oligoplites saurus. From the list of species, seven are included in the Red Book of Marine Fishes of Colombia; five between the categories Critically Endangered (CR) and Vulnerable (VU), and two in the category Near Threatened (NT). These results are a technical and scientific input for decision making, to fulfill the conservation and management mission...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colombian Caribbean; Marine protected areas; Fish fauna; Artisanal fishing.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300267

Biodiversity of sponges in rocky reefs of North Chocó, Colombian Pacific
Provedor de dados: 50
Autores: Lizarazo,Nicoll; Zea,Sven; Chasqui,Luis; Rincón-Díaz,Natalia.
ABSTRACT Compared to other groups of invertebrates, sponge (Porifera) taxonomy has been poorly developed in the Eastern Tropical Pacific (ETP) in general and in the Colombian Pacific in particular. This work aims to increase knowledge of the group's biodiversity in the rocky reefs of northern Chocó. Sponge samples were collected by autonomous diving, which were then processed and identified in the laboratory by standard methods. It was confirmed the low species richness and the predominance of encrusting morphologies and cryptic habits, which have been found in other studies in the region. Twenty-four (24) morphotypes belonging to 13 orders, 17 families and 21 genera were identified. Twelve (12) morphotypes were recognized at the genus level or with a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sponges' biodiversity; Demospongiae; Pacific rocky reefs; Colombian Pacific; Eastern Tropical Pacific.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200079

Presence of Poecilia mexicana Steindachner in a temporary hyperhaline estuary of the Gulf of Mexico
Provedor de dados: 50
Autores: Chávez-López,Rafael; 0000-0002-6105-4294,Arturo Rocha-Ramírez ID; 0000-0002-7545-2269,Ángel Morán-Silva ID.
ABSTRACT In this contribution, Poecilia mexicana is recorded for the first time in a blind estuary study under hyperhalin conditions in the Gulf of Mexico and various ecological characteristics of the species are analyzed. 170 specimens in total (128 females and 42 males), were collected in May 2013 in the Laguna El Llano estuary, Veracruz, Mexico, which presented warm waters (31.4 °C), well-oxygenated (9.45 mg/L), transparent, and hyperhaline (average 73 UPS). Females were collected in a size range of 4.28-59.21 mm in standard length and 0.04-5.48 g by weight; males were collected in a size range of 15.73-51.41 mm LP and 0.091-2.97 g by weight. Largest size range was 10-29 mm standard length. The females presented a negative allometric growth; the males...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laguna El Llano; Poeciliidae; Shortfin Molly; Veracruz.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100027

First record of the Herre’s sole, Aseraggodes herrei (Pleuronectiformes: Soleidae), at Malpelo Island, Colombian Pacific
Provedor de dados: 50
Autores: Rodríguez-Moreno,Melina; Lozano-Cortés,Diego F.
ABSTRACT Despite being a diverse genus with a total of 53 species worldwide, Aseraggodes has only one species record confirmed in the Tropical Eastern Pacific (TEP). In this short communication, we present the first record of the Herre’s sole, A. herrei, for Colombia, from two specimens observed at a depth of 24 m on the east side of Malpelo Island. Both individuals were camouflaged on coarse sand substrate. Differentiating them from the bottom was difficult, which could explain, together with the low availability of habitat, why this species had not been previously recorded at Malpelo. This report broadens the insular geographic distribution of this species beyond the Galápagos and Revillagigedo archipelagos, as well as Cocos Island in the TEP, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colombia; Marine fish diversity; Geographic distribution; Flatfish; Tropical Eastern Pacific.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300237

Dynamics of the benthic community structure on the shallow coral formations of the San Bernardo Archipelago, Colombian Caribbean
Provedor de dados: 50
Autores: Vega-Sequeda,Johanna; Agudelo-Ramírez,Claudia; Mendoza-Mazzeo,Álvaro; Sanjuan-Muñoz,Adolfo.
ABSTRACT Coral reefs have experienced an extensive degradation over the last decades as a result of anthropogenic and natural disturbances. This study presents an historical characterization (1989-2015) of changes in composition of the substrate in coral formations in the San Bernardo Archipelago. In addition, in 2015 coral reef health (presence of deterioration signs) was evaluated, and satellite temperature data were analyzed. In general, coral cover showed a stable trend between 1989 and 2010. The observed differences in the coral reef formations in 2013 and 2015 could have been due to the increase in coverage of species of the genus Orbicella, Porites, Agaricia, Siderastrea and the hydrocoral Millepora complanata. The lower coverage in 1989, 1991 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coral reefs; Coral monitoring; Reef cover; Corales del Rosario y San Bernardo Natural National Park; Colombian Caribbean.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300167

Chaetaster nodosus Perrier, first starfish belonging to the family Chaetasteridae (Echinodermata: Asteroidea) registered for the Colombian Caribbean
Provedor de dados: 50
Autores: Moreno-Jiménez,Laura Cristina; Borrero-Pérez,Giomar Helena.
ABSTRACT This work reports for the first time for the Colombian Caribbean the monogeneric family Chaetasteridae (Echinodermata: Asteroidea) based on a specimen of the starfish Chaetaster nodosus Perrier, 1875 collected off the San Bernardo islands at 98 m depth. A brief description of the species and information about its distribution is included.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: First record; Colombia; Geographic distribution; Bathymetric distribution; Taxonomic description.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200173

Distribution and abundance of shorebirds in tidal flats of Sanquianga National Natural Park and the mouth of Iscuandé, Nariño (Colombia), between 2009 and 2020
Provedor de dados: 50
Autores: Johnston-González,Richard; Eusse-González,Diana; Valencia-Martínez,Natasha.
ABSTRACT 11 % of shorebirds using the American Pacific Flyway are declining and an additional 46 % have no information to estimate their population status. To understand the magnitude of these changes and their causes, baseline information is required especially at sites of concentration like the mouth of Iscuandé River (IS) and the Sanquianga National Natural Park (SNNP). To characterize the composition of shorebird communities there, ten years of standardized counts were analyzed. Using proportional abundance, prevalence and mean density of each location, it was evaluated differences between sites with a different marine influence of the Patía River. IS contributed to 63 % of the average abundance in the study area, where 80 % were small shorebirds....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Shorebirds; Tidal flats; Spatial variation; Colombian Pacific.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300073

Collecting device for zooplankton associated with mesophotic coral ecosystems
Provedor de dados: 50
Autores: Contreras-Vega,Laura; Henao-Castro,Alejandro; Navas-S.,Gabriel R.; Criales,María Isabel; Pascuales,Milena Marrugo.
ABSTRACT Mesophotic coral ecosystems (MCEs) host unique communities that have not been sufficiently studied due to the high cost of available technologies. These reefs can be found between 30 and 150 m deep, where the amount of incident light is &lt; 10 % of that reaching the surface. The zooxanthellae associated with these reefs have a reduced photosynthetic rate due to the low availability of light, therefore, zooplankton becomes the main food source for the coral colonies. To study the composition of zooplankton communities associated to these ecosystems, a device that allowed the collection of zooplankton present on the Bajo Fríjol reef scaffold was designed and tested in the Corales de Profundidad National Natural Park. The device consisted of a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mesophotic reefs; Collection device; Zooplankton.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300243

Occurrence of the Pacific chupare stingray Styracura pacifica in Colombia and extension of its geographical range in the Tropical Eastern Pacific
Provedor de dados: 50
Autores: Dalmau,Melissa Scheel; Velandia,Manuel Camilo; Díaz,Juan Manuel; Navia,Andrés Felipe; Mejía-Falla,Paola Andrea.
ABSTRACT The presence of the Pacific chupare stingray Styracura pacifica in the Colombian Pacific is confirmed. This species together with S. schmardae in the Atlantic are the only representatives of the Potamotrygonidae family that inhabit in marine and brackish waters. The confirmed distribution of the species was limited to the Pacific coasts of Central America, between southern Mexico and Panama; therefore, the present record extends its distribution to the Eastern Tropical Pacific by about 470 km to the south.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Potamotrygonidae; Pacific whiptail stingray; Artisanal fishing.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200179

Long-term coral colonization by an excavating Caribbean sponge
Provedor de dados: 50
Autores: Marulanda-Gómez,Angela; López-Victoria,Mateo; Zea,Sven.
ABSTRACT Dead Acropora palmata branches colonized by the excavating sponge Cliona tenuis are prone to dislodgement, breakage, and translocation during heavy surge and swell from storms or hurricanes, favoring the dispersion of this sponge. At Islas del Rosario (Colombia, Caribbean), adult C. tenuis carried by A. palmata fragments that fell onto live massive corals were able to colonize the new coral, subsequently killing live tissue of the newly invaded coral. Corals that recruited onto fallen A. palmata branches overgrown with adult C. tenuis were also invaded once the sponge reached their base. To determine if the incidence of this phenomenon has increased since 2002 when it was first documented, the mode and prevalence of colonization of corals by C....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cliona tenuis; Acropora palmata; Coral colonization; Bioerosion; Storms.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100101

First record of a Fin whale (Balaenoptera physalus) in the Rosario and San Bernardo Corals National Natural Park, Colombian Caribbean
Provedor de dados: 50
Autores: Botero-Acosta,Natalia; Bohrer do Amaral,Karina; Barragán-Barrera,Dalia C.; Farías-Curtidor,Nohelia; Moreno-Sotomayor,Jorge H.; Macías-Campo,Heidys M.; Álzate-Montoya,Alejandro; Barrientos-Muñoz,Karla G.
ABSTRACT Between January 23rd and 27th, 2020, a Fin whale (Balaenoptera physalus) was seen in coastal waters of the Rosario and San Bernardo Corals National Natural Park. This is the first known record of a live animal for the Colombian Caribbean Sea. While it was not possible to establish causality relationships, the present note includes a description of the environmental and oceanographic context associated with sightings. While the Colombian Caribbean, because of its oligotrophy, would not permanently sustain a constant presence of the great baleen whales, its inclusion as part of the potential distribution range for Fin whales is suggested. The current report also highlights the importance and relevance of citizen science, in addition to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Common rorqual; Cetaceans; Report; Citizen science; Colombia.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300259

Boring worms (Sipuncula and Annelida: Polychaeta) from Tropical Eastern Pacific coral reefs (Gorgona Island, Colombia)
Provedor de dados: 50
Autores: Cardona-Gutiérrez,María Fernanda; Londoño-Cruz,Edgardo.
ABSTRACT The knowledge of boring worms in the coral reefs of the Colombian Tropical Eastern Pacific (TEP) is scarce. To know which species bore into coralline substrates, experimental units made of dead branches of Pocillopora spp. were deployed and exposed in the coral reefs of Gorgona Island (Colombian Pacific) during various periods of time. A total of 571 worms in 21 species were collected. Of these, 18 were polychaetes and 3 sipunculids. Most of these species correspond to new records in the Colombian TEP, specifically 13 of the 18 species of polychaetes and 2 of the 3 species of sipunculids. These findings suggest that more research is needed to gain knowledge about the biodiversity of these poorly-known groups in understudied regions like the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colombian Pacific; Borers; Calcium carbonate; New records; Worms.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200009

Extremely low oxygen partial pressures for the storage of ‘Royal Gala’ apple
Provedor de dados: 53
Autores: Berghetti,Magno Roberto Pasquetti; Brackmann,Auri; Thewes,Fabio Rodrigo; Schultz,Erani Eliseu; Ludwig,Vagner; Wendt,Lucas Mallmann; Thewes,Flavio Roberto; Schmidt,Suele Fernanda Prediger.
ABSTRACT The aim of this study was to evaluate the effect of storing ‘Royal Gala’ apple under extremely low oxygen partial pressures on their anaerobic metabolism, ethylene production and fruit quality after 9 months of storage plus 7 days of shelf life at 20 °C. The storage conditions tested were: 1.2 kPa O2 + 2.0 kPa CO2; 0.7 kPa O2 + 1.5 kPa CO2; 0.5 kPa O2 + 1.2 kPa CO2; 0.4 kPa O2 +1.2 kPa CO2 and 0.25 kPa O2 + 0.0 kPa CO2. The fruit storage temperature was 1.0 °C (± 0.1). Fruit stored at 0.4 kPa O2 + 1.2 kPa CO2 maintained higher flesh firmness and a higher percentage of healthy fruit. The fruit stored under the 0.25 kPa O2 + 0.0 kPa CO2 condition had lower flesh firmness as well as a reduced percentage of healthy fruit and a high production of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anaerobic metabolism; Ethyl acetate; Ethylene; Malus domestica; Physiological disorders.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020005001202

Characterization of the solid residue generated in the detoxification step of sugarcane bagasse hemicellulosic hydrolysate and behavior in agricultural soils
Provedor de dados: 53
Autores: Godoi,Isamara; Felipe,Maria das Graças de Almeida; Silva,Débora Danielle Virgínio; Leonel,Lilian Vieira; Costa,Mônica Sarolli Silva de Mendonça; Sene,Luciane.
ABSTRACT Overliming is an effective way of neutralizing and reducing the toxicity of the hydrolysates generated from acidic pretreatment of lignocellulosic biomass for ethanol production and others biotechnological products. Overliming generates a solid residue whose inadequate disposal may represent an environmental problem. This work aimed at the chemical characterization of the solid residue generated during the detoxification of the sugarcane bagasse hemicellulosic hydrolysate and evaluation of its behavior in soil. The solid residue was submitted to physicochemical and granulometric analysis and determination of the contents of sugars, metals and toxic compounds (acetic acid, furfural, hydroxymethylfurfural and phenols). The potential of the residue...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Overliming; Limestone; Soil acidity; Soil quality; Toxicity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100107

Multifractal analysis of soil fauna diversity indexes
Provedor de dados: 53
Autores: Silva,Raimunda Alves; Siqueira,Glécio Machado.
ABSTRACT The objective of this study was to determine the multifractality of diversity indexes of edaphic fauna in areas with natural vegetation and in agricultural systems. Biological sampling was carried out in seven treatments (millet, maize, soybean, eucalyptus, preserved cerrado, disturbed cerrado and pasture), containing 130 pitfall traps, distributed in transects with 3 m of spacing between sampling points, totaling 390 m. The multifractal analysis was determined based on the moment method, where estimates such as the capacity dimensions, entropy and the correlation of the diversity indexes were calculated. The soybean area had greater Shannon diversity (2.69), however it had smaller abundance of individuals. The partition functions were adjusted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecological modelling; Arthropods communities; Multifractality; Generalized dimension; Singularity spectrum.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100120

Evidence of accelerated and altered pollen development after Imazapyr treatment in resistant sunflower
Provedor de dados: 53
Autores: Ochogavía,Ana Claudia; Bianchi,Marta Beatríz; Picardi,Liliana; Nestares,Graciela María.
ABSTRACT Imazapyr (IM) treatment applied at early reproductive developmental stages have been associated with induced male sterility in sunflower (Helianthus annuus L.). The aim of this work was to determine the effects induced by two different doses of IM-treatment (1X and 2X; 80 and 160 g a.i.·ha-1) on pollen grain yield, pollen viability and on the exine surface, in an intermediate resistant (I) and a completely resistant (R) genotype. An anatomical analysis of some stages during the microsporogenesis and microgametogenesis was also achieved by confocal microscopy. Plants of both genotypes survived the herbicide treatments and showed no external injury symptoms. Differential response to different doses of IM was obtained in R and I genotypes. The pollen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Induced male-sterility; Confocal microscopy; Herbicide resistance; Helianthus annuus L.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100094

Role of nonproductive tillers as transient sinks of assimilates in wheat
Provedor de dados: 53
Autores: Fioreze,Samuel Luiz; Michelon,Luiz Henrique; Turek,Thaís Lemos; Drun,Robson Pelissari; Dalorsaleta,Julio César Sbardella.
ABSTRACT Although source–sink relationships in wheat are well studied, the performance of tillers as transient sinks is still unclear, especially under stress conditions. Thus, this work aimed to study the yield relationships of wheat stems in contrasting genotypes as affected by tiller treatment under stress conditions. Two experiments were conducted under greenhouse conditions using BRS Guamirim (high tillering) and BRS Parrudo (low tillering) wheat cultivars. Four tillering treatments were applied on late tillers in the first growing season (2016) and three in the second (2017): (i) free-tillering, (ii) detillering, (iii) physical suppression (only in the first season) and (iv) “spikes removal”. The main stem and the first four emitted tillers were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Triticum aestivum; Source–sink relationship; Tillering; Drought stress; Defoliation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020005004203

Selection strategies in a segregating passion fruit population aided by classic and molecular techniques
Provedor de dados: 53
Autores: Preisigke,Sandra da Costa; Viana,Alexandre Pio; Santos,Eileen Azevedo; Santos,Paulo Ricardo dos; Santos,Valquíria Oliveira dos; Ambrósio,Moisés; Silva,Flávia Alves da; Walter,Fernando Henrique de Barros.
ABSTRACT Combining the use of agronomic, disease-resistance, and molecular informationcan greatly contribute to genetic progress in breeding programs. This study was developed to estimate the genetic distance between genotypes derived from backcrosses and their parents using morphoagronomic and molecular information and information pertaining to resistance to the Cowpea aphid-borne mosaic virus (CABMV), and indicate genotypes with potential for generation advancement. The studied population consisted of 91 genotypes from the first backcross, oneinterspecific hybrid, and the species Passiflora setacea and P. edulis. For morphoagronomic characterization, the traits number of fruits, total fruit weight, average fruit weight, and area under the disease...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passiflora; CABMV; Backcross; Parental proportion.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100047

Salt stress alleviation by seed priming with silicon in lettuce seedlings: an approach based on enhancing antioxidant responses
Provedor de dados: 53
Autores: Alves,Rita de Cássia; Nicolau,Mayara Cristina Malvas; Checchio,Mirela Vantini; Sousa Junior,Gilmar da Silveira; Oliveira,Francisco de Assis de; Prado,Renato Melo; Gratão,Priscila Lupino.
ABSTRACT Seed germination and seedling growth are the stages most sensitive to salt stress, which can induce ion-specific effects and oxidative stress. Although silicon (Si) has been known to improve plant defense systems against stressful-conditions, little is known about seed priming with Si and mechanisms of Si-mediated alleviation of salt stress in seedlings. To further the modulation of salt-stress responses and their relation with Si, seed priming with calcium silicate (0, 0.05 and 0.1 mM Ca2SiO4) was used in lettuce seeds to improve seedgermination and tolerance on subsequent salt-stress exposure (0 and 50 mM NaCl). The effect of Si-priming was assessed on germination, germination rate index and mean germination time and survival of seedlings in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant enzymes; Lactuca sativa; Oxidative damages; Salinity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100019

Characterization of tomato generations according to a three-way data analysis
Provedor de dados: 53
Autores: Medico,Ana Paula Del; Cabodevila,Victoria Guadalupe; Vitelleschi,Maria Susana; Pratta,Guillermo Raúl.
ABSTRACT Availability of a three-way data analysis to characterize two consecutive tomato (Solanum lycopersicum) generations is necessary to continue a plant breeding program with less uncertainty. The aim of this work was to analyze tomato fruit quality from F2 and F3 populations by two three-way data analysis: multiple factorial analysis (MFA) and generalized procrustes analysis (GPA). These techniques have the same main objective, searching for a common structure, but they achieve it in different ways. This work evaluated 18 tomato genotypes, represented by individual plants in F2 and selfed families in F3. The same quantitative traits related to fruit quality were measured in both generations. The first two axes of the MFA represented 51.0% of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Three-way data analysis; Multiple factorial analysis; Generalized procrustes analysis; Plant breeding; Plant genetic resources.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100008

Comparison of the damaging effects of Meloidogyne incognita on a resistant and susceptible cultivar of cucumber
Provedor de dados: 53
Autores: Mukhtar,Tariq; Kayani,Muhammad Zameer.
ABSTRACT In the present study, the damaging effects of six inoculum densities of Meloidogyne incognita were compared on a resistant (Long Green) and a highly susceptible (Mirage) cultivar of cucumber. All the inoculum densities of M. incognita resulted in significant reductions in growth and yield variables of both the cultivars over their controls. The reductions in resistant cultivar were significantly lower as compared to the highly susceptible cultivar at all inoculum levels. The highest inoculum level caused the maximum reductions in growth and yield variables while the lowest inoculum level resulted in the minimum reductions. The reductions in growth and yield variables increased with an increase in the inoculum density showing a positive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Root-knot nematode; Inoculum level; Resistant and susceptible cultivars; Damaging effect.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100083

Late defoliation of ‘Chardonnay’ grapevine in subtropical highland climate
Provedor de dados: 53
Autores: Figueiredo,Gabriel Machado de; Mota,Renata Vieira da; Souza,Claudia Rita de; Peregrino,Isabela; Fernandes,Fernanda de Paula; Rhegina,Murillo Albuquerque.
ABSTRACT Chardonnay cultivar has shown great potential of planting and development in sites above 900m of Brazilian southeast for sparkling wines production. The quality of this product is related to vineyard climate and management, since both affect the vine development and grape composition. In this study, three defoliation orientations (east, west and east/west face), at veraison, and a group without defoliation, were compared in order to observe the impacts of this management on the productivity, grape and base wine quality. Yield, grape components, must and base wine composition were analyzed for two years. East/west defoliation increased alcohol content and decreased acidity in base wines, while the group without defoliation increased acidity,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera; Aroma; Bunch rot; Sparkling wine; Vitiviniculture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020005004202

Postharvest quality of ‘Brookfield’ apple field-treated with naphthalene acetic acid alone or combined with other growth regulators
Provedor de dados: 53
Autores: Wendt,Lucas Mallmann; Brackmann,Auri; Both,Vanderlei; Thewes,Fabio Rodrigo; Schultz,Erani Eliseu; Ludwig,Vagner; Berghetti,Magno Roberto Pasquetti.
ABSTRACT The Gala cultivars represent about 65% of the Brazilian apple production, however, it has a short harvest period, making necessary to use technologies that anticipate or delay fruit maturation. A widely used technology is the preharvest application of growth regulators. The objective of this investigation was to evaluate the effect of preharvest application of naphthalene acetic acid (NAA) combined with aminoethoxyvinylglycine (AVG) and 2-chloroethylphosphonic acid (Ethephon), on the quality of ‘Brookfield’ apple at harvest and after eight months controlledatmosphere (CA)(1.2 kPa O2 and 2.0 kPa CO2) storage followed by seven days of shelf life at 20 °C. The treatments were: [1] Control: application of water only; [2] NAA (40 g.ha-1); [3] NAA (40...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aminoethoxyvinylglycine; Controlled atmosphere; Ethephon; Fruit quality; Malus domestica.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100155

Silicon nutrition counteracts salt-induced damage associated with changes in biochemical responses in apple
Provedor de dados: 53
Autores: Aras,Servet; Keles,Hakan; Eşitken,Ahmet.
ABSTRACT Salt stress is an environmental challenge that adversely influences plant responses. Silicon (Si) nutrition plays critical roles in plant tolerance to salt stress. Apple (Malus domestica Borkh.), a salt sensitive fruit species, was used in the present experiment to investigate the influences of Si on salt stress as well as on alterations of biochemical responses. Apple cv Fuji grafted on M9 clonal rootstock was exposed to salt stress for 4 months with 35 mmol·L-1 NaCl. CaSiO3 doses (0.5, 1 and 2 mmol·L-1) were applied to the roots of the salt-stressed apple plants except control. Si application resulted in mitigation of salt stress in apple plants. The highest chlorophyll a, b and a + b were obtained from the 1 mmol·L-1 Si treatment (5.37, 2.41...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malus domestica Borkh; Plant behavior; Rootstock; Salinity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100001

Transcription factors and molecular markers revealed asymmetric contributions between allotetraploid Upland cotton and its two diploid ancestors
Provedor de dados: 53
Autores: Jazayeri,Seyed Mehdi; Villamar-Torres,Ronald Oswaldo; Zambrano-Vega,Cristian; Cruzatty,Luz Cecilia García; Oviedo-Bayas,Byron; Santos,Milena do Amaral; Maddela,Naga Raju; Ghafoor,Seyed Mohammad Hossein Ale Seyed; Viot,Christopher.
ABSTRACT Three Gossypium species have been used to breed cotton as they vary in their fiber production and resistance to stresses. Transcription factors (TFs) mostly are present in different copies or isoforms by which they conduct their regulation. Their copy number can determine organism behavior to a cue. Simple sequence repeats (SSRs) are one of the most informative and versatile molecular markers. Transcription factors of three Gossypium species were compared in silico. Seventy eight percent of TFs were common between the three species. Single copy for each species were 6057 TF. Gossypium hirsutum and G. raimondii shared the most common interspecific TF. Gossypium arboreum species-specific TF were the least. MYB TF family with its subfamilies is the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fiber; Insect attack; Gossypium; Regulation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100030

Preharvest nitrogen application affects quality and antioxidant status of two tomato cultivars
Provedor de dados: 53
Autores: Frías-Moreno,Maria Noemi; Espino-Díaz,Miguel; Dávila-Aviña,Jorge; Gonzalez-Aguilar,Gustavo Adolfo; Ayala-Zavala,Jesús Fernando; Molina-Corral,Francisco Javier; Parra-Quezada,Rafael Angel; Orozco,Guadalupe Isela Olivas.
ABSTRACT Intensive horticultural crop production usually involves challenges from excessive application of fertilizer, mainly nitrogen (N). The effect of N fertilizer on the fruit quality and antioxidant status of two cherry tomato cultivars (Caballero and Victoria) under greenhouse conditions was performed. Nitrogen treatments were applied ranging from conditions comprising deficiency to toxicity (0, 15, 30, 45 and 60 mmol∙L-1). Yield, weight, diameter, fruit quality, phenols, flavonoids, lycopene, ascorbic acid and antioxidant capacity were measured at physiological maturity of the fresh tomato fruits. N treatment with 30 mmol∙L-1 produced the highest yield, fruit weight, firmness and diameter in both cultivars. However, increasing N from 30 to 60...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Greenhouse; Ascorbic acid; Phenolics; Lycopene.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100134

Silverleaf whitefly-resistant common beans: an investigation of antibiosis and/or antixenosis
Provedor de dados: 53
Autores: Santos,Thais Lohaine Braga dos; Baldin,Edson Luiz Lopes; Ribeiro,Leandro do Prado; Souza,Camila Moreira de; Bueno,Nádia Maebara; Silva,Ivana Fernandes da.
ABSTRACT The silverleaf whitefly Bemisia tabaci biotype B is one of the most important sucking pests of common bean, which causes severe damages and requires frequently synthetic insecticides spraying to protect crop productivity. The use of common bean cultivars resistant to whitefly attack is an important strategy within an integrated pest management (IPM) program. The biological development of B. tabaci confined to 17 bean genotypes was evaluated in greenhouse trials to verify the occurrence of antibiosis. Whitefly adults were released on plants of these genotypes to oviposit, afterward the incubation period of eggs, nymphal period, complete development period (egg–adult), and viability of the silverleaf whitefly nymphs were recorded. As main results,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Host plant resistance; Phaseolus vulgaris L; Bemisia tabaci biotype B.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100062

Guava seedlings with rootstocks or interstocks and their reaction to salinity
Provedor de dados: 53
Autores: Souza,Alexandre Gomes de; Marinho,Cláudia Sales; Silva,Mírian Peixoto Soares da; Carvalho,Waleska Soares Gomes; Campos,Graziella Siqueira; Pestana,Bruno Abreu.
ABSTRACT The introduction of rootstocks for the guava has become necessary due to the advance of guava decline. Among them, Psidium spp. or their hybrids have been evaluated. In addition to disease resistance, tolerance to salinity must be evaluated in the new rootstocks. The aim of this study was to verify the effect of rootstocks and intergrafts on the mineral composition of Psidium spp. submitted to salt stress. The experiment was setup in a randomized block design, with the following treatments (scion/rootstock):P. guineense/P. cattleianum; P. guajava/P. guineense/P. cattleianum; P. guajava‘Paluma’/P. guajava; P. guajava ‘Paluma’/P. guineense; P. guajava ‘Cortibel 1’/P. guajava;P. guajava ‘Cortibel 1’/P. guineense; P. cattleianum (purple) and P....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Accumulation of sodium in leaves; Mineral nutrient contents in Psidium spp.; Interstocked seedlings.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100074

Budbreak induction in kiwifruit vines cultivated in an organic system by the biological method of single node cutting
Provedor de dados: 53
Autores: Santos,Rodrigo Fernandes dos; Marques,Léo Omar Duarte; Mello-Farias,Paulo; Martins,Carlos Roberto; Konzen,Luis Henrique; Carvalho,Ivan Ricardo; Malgarim,Marcelo Barbosa.
ABSTRACT Kiwifruit vines are an alternative approach to diversify Brazilian fruit farming because of the low supply and increase in the demand for their fruits. Hydrogenated cyanamide, which is the most common rest-breaking agent, is highly toxic and its use is not allowed in organic production systems. This study aimed at evaluating the efficiency of alternative rest-breaking agents in kiwifruit vines by using the biological method of single node cutting. Twigs of the cultivar Bruno were collected in an organic orchard in Pelotas, a city located in Rio Grande do Sul state, Brazil. Seven-centimeter-long cuts with a single shoot at the ends were segmented. Cuttings were placed on plastic trays with phenolic foam and soaked in water, at 85% relative humidity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Actinidia deliciosa; Sustainability; Ecophysiology; Adaptation; Mild winter.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020005004201

ERRATUM: Investigation of Mode of Action of Anti Bacterial Activity of Salacia Oblonga Extract Against Drug Resistant Pathogen
Provedor de dados: 52
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000101501

Development and validation of a simple and rapid way to generate low volume of plasma to be used in point-of-care HIV virus load technologies
Provedor de dados: 55
Autores: Vasconcellos,Isabelle; Mariani,Diana; Azevedo,Marcelo C.V.M. de; Ferreira Jr.,Orlando C.; Tanuri,Amilcar.
ABSTRACT A new point-of-care HIV viral load, mPIMA HIV-1/2 VL, Abbott, USA, has been recently developed. This point-of-care viral load requires no skilled person to run and uses a small plasma volume (50 µL). However, obtaining 50 µL of plasma can be a challenge in limited resource settings. We validated a simple and easy method to obtain enough amount of plasma to run a point-of-care viral load. The study utilized 149 specimens from patients failing antiretroviral therapy. At least 250 µL of whole blood was collected in a microtube/EDTA from fingerstick (fs-plasma) and immediately centrifuged. Parallel collection of venous blood to obtain plasma (vp-plasma) was used to compare performance in a point-of-care viral load assay and in methodology used in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: POC VL; HIV viral load; HIV; Point-of-care; Fingerstick-plasma; MPIMA.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100030

Sporadic human cutaneous anthrax outbreak in Shaanxi Province, China: report of two cases from 2018
Provedor de dados: 55
Autores: Liu,Yuanyuan; Li,Yongqin; Wang,Qiaoxia; Fu,Jianjun; Ji,Fanpu.
ABSTRACT China’s compulsory annual livestock anthrax vaccination policy has remarkably reduced but not completely eradicated human anthrax infections. Herein we describe a sporadic human cutaneous anthrax outbreak involving two cases in 2018 in Shaanxi Province, both involving herdsman who dealt with unvaccinated and potentially sick cattle. Both patients showed Bacillus anthracis-positive blister smear and blood culture. Treatment with penicillin was followed by uneventful recovery for both. The prompt performance of the prophylactic measures successfully interrupted the further transmission of this sporadic human cutaneous anthrax outbreak.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Bacillus anthracis; Cutaneous anthrax; Vaccination.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100081

Differential replicative fitness of the four dengue virus serotypes circulating in Colombia in human liver Huh7 cells
Provedor de dados: 55
Autores: Gutiérrez-Barbosa,Hernando; Castañeda,Nadia Y.; Castellanos,Jaime E.
ABSTRACT Dengue has been a significant public health problem in Colombia since the simultaneous circulation of the four dengue virus serotypes. The replicative fitness of dengue is a biological feature important for virus evolution and contributes to elucidating the behavior of virus populations and viral pathogenesis. However, it has not yet been studied in Colombian isolates. This study aimed to compare the replicative fitness of the four dengue virus serotypes and understand the association between the serotypes, their in vitro infection ability, and their replication in target cells. We used three isolates of each DENV serotype to infect Huh-7 cells at an MOI of 0.5. The percentage of infected cells was evaluated by flow cytometry, cell viability was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dengue virus; Dengue serotypes; Replicative fitness; Dengue strains.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100013

Treatment of chronic hepatitis C in patients with chronic kidney disease with Sofosbuvir-basead regimes
Provedor de dados: 55
Autores: Rossato,Giovana; Tovo,Cristiane Valle; Almeida,Paulo Roberto Lerias de.
ABSTRACT  Background: To analyze the effectiveness and the safety of Sofosbuvir-based regimens to treat patients with chronic hepatitis C virus (HCV) infection and chronic kidney disease (CKD).  Methods: A retrospective, observational study in patients with chronic HCV infection and CKD treated with Sofosbuvir-based regimens was performed. Liver fibrosis, comorbidities, HCV genotype and sustained virological resposnse (SVR) at 12th week post-treatment were evaluated. Kidney function was accessed by serum creatinine and glomerular filtration rate (GFR). The assumed level of significance was 5 %.  Results: Thirty-five patients were treated. The mean age was 52.1 ± 10.9 years, 19 (54.3 %) were women, 32 (91.4 %) were already kidney transplanted and 3 (8.6 %)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemodialysis; Kidney transplantion; Direct-acting antiviral; Sofosbuvir; Daclatasvir.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100025

Epitope of dengue virus E protein detect human antibodies associated with mild disease: a potential peptide for vaccine development
Provedor de dados: 55
Autores: Sánchez-Burgos,Gilma; Herrera-Nájera,Carla; Cedillo-Rivera,Roberto; Dumonteil,Eric.
ABSTRACT The antigenic potential of seven immunogenic peptides of the dengue virus was evaluated in the sera of patients with dengue confirmed by IgM/IgG serology. Antibodies IgM and IgG against dengue virus peptides were analyzed by ELISA in 31 dengue sero-positive and 20 sero-negative patients. The P5 peptide showed significant IgG immunoreactivity mostly in the sera of patients with dengue without warning signs in comparison with patients with dengue with warning signs, correlating with mild disease. This finding suggests that the low antibody response against P5 epitope could be a risk factor for higher susceptibility to dengue virus infection with warning signs, and that P5 could be a potential antigen for vaccine development.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Dengue virus; Epitopes; Peptides; Antibodies.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100085

Proposal of a clinical score to stratify the risk of multidrug-resistant gram-negative rods bacteremia in cancer patients
Provedor de dados: 55
Autores: Carena,Alberto A.; Laborde,Ana; Roccia-Rossi,Inés; Palacios,Cynthia J.; Jordán,Rosana; Valledor,Alejandra; Nenna,Andrea; Costantini,Patricia; Dictar,Miguel; Herrera,Fabián.
ABSTRACT  Introduction: Multidrug-resistant gram-negative rods (MDR GNR) represent a growing threat for patients with cancer. Our objective was to determine the characteristics of and risk factors for MDR GNR bacteremia in patients with cancer and to develop a clinical score to predict MDR GNR bacteremia.  Material and Methods: Multicenter prospective study analyzing initial episodes of MDR GNR bacteremia. Risk factors were evaluated using a multiple logistic regression (forward-stepwise selection) analysis including variables with a p &lt; 0.10 in univariate analysis.  Results: 394 episodes of GNR bacteremia were included, with 168 (42.6 %) being MDR GNR. Five variables were identified as independent risk factors: recent antibiotic use (OR = 2.8, 95 % CI...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteremia; Cancer; Multidrug-Resistant gram-negative rods.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100034

Factors associated to modification of first-line antiretroviral therapy due to adverse events in people living with HIV/AIDS
Provedor de dados: 55
Autores: Azevedo,Larissa Negromonte; Ximenes,Ricardo Arraes de Alencar; Monteiro,Polyana; Montarroyos,Ulisses Ramos; Miranda-Filho,Demócrito de Barros.
ABSTRACT Antiretroviral therapy (ART) has modified the outcome of patients with HIV infection, providing virological control and reducing mortality. However, there are several reasons as to why patients may discontinue their antiretroviral therapy, with adverse events being one of the main reasons reported in the literature. This is a case-control nested in a cohort of people living with HIV/AIDS, conducted to identify the incidence of ART modification due to adverse events and the associated factors, in two referral services in Recife, Brazil, between 2011 and 2014. Of the modifications occurred in the first year of ART, 25.7% were driven by adverse events. The median time elapsed between initiating ART and the first modification due to adverse events was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antiretroviral therapy; Zidovudine; Tenofovir; Efavirenz; Adverse events.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100065

Measles, rubella, mumps and Toxoplasma gondii antibodies in saliva of vaccinated students of schools and universities in São Paulo City, Brazil
Provedor de dados: 55
Autores: Sampaio,Barbara Carvalho Fialho; Rodrigues,Jaqueline Polizeli; Meireles,Luciana Regina; Andrade Junior,Heitor Franco de.
ABSTRACT  Introduction: Vaccines are well-established public health interventions with major impacton the prevalence of infectious diseases, but outbreaks are occurring frequently due to pri-mary and secondary failures, despite high coverage. Surveillance of efficacy and duration ofinduced immunity is a difficult task as it requires invasive blood sampling in children andteenagers. Saliva can be an acceptable alternative source of IgG to assess vaccine efficacyand toxoplasmosis incidence. We investigated IgG response for measles, mumps, rubella,and T. gondii in saliva samples of vaccinated young people.  Methods: Saliva was collected from 249 public schools students from São Paulo, Brazil, aged7 to 13 years old, during an interactive exhibition on hygiene....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vaccine; Prevalence; Non-invasive; Saliva; IgG; Toxoplasmosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100051

Clinical and microbiological characteristics of cryptococcosis at an university hospital in China from 2013 to 2017
Provedor de dados: 55
Autores: Fang,Lan-fang; Zhang,Piao-piao; Wang,Jie; Yang,Qing; Qu,Ting-ting.
ABSTRACT  Background: This study aims to explore the epidemiology, clinical profile and strain characteristics of cryptococcosis from 2013 to 2017 in a major teaching hospital in China.  Methods: Trends in antifungal drug susceptibility of 217 consecutive non-repetitive cryptococcal isolates collected from patients of an university hospital in China were analyzed between 2013 and 2017. Of those, 98 isolates were conserved for identification by internal transcribed spacer (ITS) sequencing and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) system. Multilocus sequence typing (MLST) was used to designate molecular types. Clinical characteristics of the 98 patients with cryptococcosis during the period of 2013-2017...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryptococcosis; Cryptococcus neoformans; Multilocus sequence typing (MLST); Antifungal susceptibility; Human immunodeficiency virus (HIV).
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100007

Diagnostic parameters and reliability of four rapid immunochromatographic tests for dengue 4
Provedor de dados: 55
Autores: Mata,Veronica Elizabeth; Passos,Sonia Regina Lambert; Santos,Maria Angelica Borges dos; Buonora,Sibelle Nogueira; de Andrade,Carlos Augusto Ferreira; Lima,Monique da Rocha Queiroz; Costa,Betina Moreira; Hökerberg,Yara Hahr Marques.
ABSTRACT  Background: Although performance of rapid immunochromatographic tests (RITs) for dengue virus (DENV) serotypes 1, 2 and 3 is relatively settled, evidence on accuracy of RITs for DENV-4 are based on studies with small sample sizes and with discrepant results.  Objectives: To assess accuracy and inter-observer agreement of RITs targeting dengue nonstructural protein-1 (NS1) antigen - Dengue NS1-Bioeasy™, Dengue NS1 Ag Strip-Bio-Rad™, IVB Dengue Ag NS1-Orangelife™ and Dengue NS1-K130-Bioclin™ in DENV-4 samples.  Methods: Study sample (n = 324) included adults presenting at an emergency unit in Rio de Janeiro, Brazil, with fever of ≤72 h and two or more dengue symptoms. A serum sample from each patient was tested by each RIT. A positive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dengue; Immunochromatographic tests; Sensitivity and specificity; Reproducibility of tests; Diagnosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100058

Septicemia in an immunocompetent adult in the Czech Republic caused by Corynebacterium diphtheriae nontoxigenic strain biotype mitis: emergence of invasive cases in Western Europe
Provedor de dados: 55
Autores: Massmann,Ricardo; Zavadilová,Jana; Drozenová,Jana; Fiksa,David; Smíšková,Dita.
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100089

Seroprevalence of chikungunya virus infection in five hospitals within Anyigba, Kogi State of Nigeria
Provedor de dados: 55
Autores: Omatola,Cornelius A.; Onoja,Bernard A.; Fassan,Peter K.; Osaruyi,Stephanie A.; Iyeh,Mercy; Samuel,Matthew A.; Haruna,Peace U.
ABSTRACT Febrile illnesses in developing countries are often misdiagnosed as malaria or typhoid fever. Although arboviral infections have similar clinical symptoms, they are usually not screened because of limited resources and the fact that there are several viruses in this group. Chikungunya virus (CHIKV) has been isolated in parts of Nigeria, but there is no documented evidence of the infection in Kogi State. This study determined seroprevalence of active and past CHIKV infection among febrile patients who tested negative for malaria and typhoid fever. Sera from 243 febrile patients were screened for CHIKV IgG and IgM using an immunochromatographic test kit. Clinical and socio-demographic variables were collected using a structured questionnaire. Recent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chikungunya; Fever; Seroprevalence; IgM; IgG; Nigeria.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100001

Influenza A and B in a cohort of outpatient children and adolescent with influenza like-illness during two consecutive influenza seasons
Provedor de dados: 55
Autores: Machado,Clarisse M.; de Souza,Ana Carolina Mamana Fernandes; Romano,Camila Malta; dos Santos Freire,Wilton; Costa,Ângela Aparecida; Figueiredo,Walter Manso; Pannuti,Cláudio S.; Luna,Expedito J.A.
ABSTRACT  Introduction Influenza is an important cause of morbimortality worldwide. Although people at the extremes of age have a greater risk of complications, influenza has been more frequently investigated in the elderly than in children, and inpatients than outpatients. Yearly vaccination with trivalent or quadrivalent vaccines is the main strategy to control influenza.  Objectives Determine the clinical and molecular characteristics of influenza A and B infections in children and adolescents with influenza-like illness (ILI).  Methods: A cohort of outpatient children and adolescents with ILI was followed for 20 months. Influenza was diagnosed with commercial multiplex PCR platforms.  Results: 179 patients had 277 episodes of ILI, being 79 episodes of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Influenza; Outpatient; Children; Vaccine; Lineages; Phylogeny; Cohort.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100073

Thermotolerance of Histoplasma capsulatum at 40 °C predominates among clinical isolates from different Latin American regions
Provedor de dados: 55
Autores: Sahaza,Jorge H.; Rodríguez-Arellanez,Gabriela; Canteros,Cristina E.; Reyes-Montes,María del Rocío; Taylor,Maria Lucia.
ABSTRACT The yeast phase of 22 Histoplasma capsulatum clinical isolates from Mexico, Argentina, Colombia, and Guatemala and three reference strains, one from Panama and two from the United States of America (USA), were screened for thermosensitivity characteristics using different analyses. Growth curves at 0, 3, 6, 12, 24, and 30 h of incubation at 37 and 40 °C, the growth inhibition percentage at 40 °C, and the doubling time at 37 and 40 °C were determined for all yeasts studied. Most of the isolates examined exhibited thermotolerant phenotypes at 40 °C, whereas a thermosensitive phenotype at 40 °C was only detected in the Downs reference strain from the USA. Growth inhibition values lower than 33.8% supported the predominance of the thermotolerant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Latin America; H. capsulatum; Yeasts; Thermotolerance; Thermosensitivity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100044

Effects of high- and moderate-intensity exercise on central hemodynamic and oxygen uptake recovery kinetics in CHF-COPD overlap
Provedor de dados: 56
Autores: Mazzuco,A.; Souza,A.S.; Medeiros,W.M.; Sperandio,P.A.; Alencar,M.C.N.; Arbex,F.F.; Neder,J.A.; Borghi-Silva,A.
The oxygen uptake (V˙O2) kinetics during onset of and recovery from exercise have been shown to provide valuable parameters regarding functional capacity of both chronic obstructive pulmonary disease (COPD) and chronic heart failure (CHF) patients. To investigate the influence of comorbidity of COPD in patients with CHF with reduced ejection fraction on recovery from submaximal exercise, 9 CHF-COPD male patients and 10 age-, gender-, and left ventricle ejection fraction (LVEF)-matched CHF patients underwent constant-load exercise tests (CLET) at moderate and high loads. The V˙O2, heart rate (HR), and cardiac output (CO) recovery kinetics were determined for the monoexponential relationship between these variables and time. Within-group analysis showed that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chronic heart failure; Chronic obstructive pulmonary disease; Oxygen uptake; Heart rate; Recovery kinetics; Exercise test.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300602

Impact of cigarette smoke and aerobic physical training on histological and molecular markers of prostate health in rats
Provedor de dados: 56
Autores: Veras,A.S.C.; Baptista,D.B.; dos Santos,N.J.; Thorpe,H.H.A.; Seraphim,P.M.; Florido Neto,A.R.; Teixeira,G.R.
Recent evidence suggests that aerobic physical training may attenuate the deleterious effects of cancer risk factors, including smoking. We investigated the effects of cigarette smoke inhalation and aerobic physical training on the expression of steroid receptors and inflammatory and apoptotic proteins in the prostate. Forty male Wistar rats were distributed in four groups: control (CO), exercise (EXE), cigarette smoke exposure (CS), and cigarette smoke exposure with exercise (CS+EXE). For eight weeks, animals were repeatedly exposed to cigarette smoke for 30 min or performed aerobic physical training either with or without the cigarette smoke inhalation protocol. Following these experiments, we analyzed prostate epithelial morphology and prostatic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inflammation; Androgen receptor; Growth factors; Endurance exercise; BAX; BCL-2.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500601

MALAT1 is involved in type I IFNs-mediated systemic lupus erythematosus by up-regulating OAS2, OAS3, and OASL
Provedor de dados: 56
Autores: Gao,Fei; Tan,Yuan; Luo,Hong.
Systemic lupus erythematosus (SLE) is an autoimmune disease associated with an aberrant activation of immune cells partly due to the dysfunction of cytokines such as type I interferons (IFNs). Long non-coding RNA MALAT1 has been found to play a pathogenic role in SLE; however, the underlying mechanisms are still poorly understood. Bioinformatics analysis showed the up-regulation of type I IFN downstream effectors OAS2, OAS3, and OASL (OAS-like) in CD4+ T cells, CD19+ B cells, and CD33+ myeloid cells in patients with active SLE compared to healthy participants. In this study, peripheral blood mononuclear cells (PBMCs), CD19+ B, and CD4+ T cells were isolated from active SLE patients and healthy participants. PCR was performed to quantify MALAT1, OAS2, OAS3,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MALAT1; OAS2; OAS3; OASL; Systemic lupus erythematosus; Type I IFNs.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500603

Repercussions of adjuvant-induced arthritis on body composition, soleus muscle, and heart muscle of rats
Provedor de dados: 56
Autores: Pita,L.M.; Spadella,M.A.; Montenote,M.C.; Oliveira,P.B.; Chies,A.B.
This study investigated the repercussions of adjuvant-induced arthritis (AIA) on body composition and the structural organization of the soleus and cardiac muscles, including their vascularization, at different times of disease manifestation. Male rats were submitted to AIA induction by intradermal administration of 100 μL of Mycobacterium tuberculosis (50 mg/mL), in the right hind paw. Animals submitted to AIA were studied 4 (AIA4), 15 (AIA15), and 40 (AIA40) days after AIA induction as well as a control group of animals not submitted to AIA. Unlike the control animals, AIA animals did not gain body mass throughout the evolution of the disease. AIA reduced food consumption, but only on the 40th day after induction. In the soleus muscle, AIA reduced the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimental arthritis; Cachexia; Musculoskeletal; Microcirculation; Cardiovascular; Body composition.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300607

Enhanced anti-tumor efficacy of 5-aminolevulinic acid-gold nanoparticles-mediated photodynamic therapy in cutaneous squamous cell carcinoma cells
Provedor de dados: 56
Autores: Chi,Yu-fei; Qin,Jing-jing; Li,Zhi; Ge,Qin; Zeng,Wei-hui.
The objective of this study was to investigate whether the conjugation of gold nanoparticles (GNPs) to 5-aminolevulinic acid (5-ALA) could enhance the anti-tumor efficiency of photodynamic therapy (PDT) in epidermoid carcinoma cells. The mRNA and protein expression levels were determined by quantitative real-time PCR and western blot, respectively. Cell viability, apoptosis, invasion, and migration were determined by MTT assay, flow cytometry, transwell invasion assay, and migration assay, respectively. Singlet oxygen generation was detected by the singlet oxygen sensor green reagent assay. Our results showed that PDT with 5-ALA and GNPs-conjugated 5-ALA (5-ALA-GNPs) significantly suppressed cell viability, increased cell apoptosis and singlet oxygen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Photodynamic therapy; 5-ALA-GNPs; Cell viability; Cell apoptosis; Cell invasion and migration; Cutaneous squamous cell carcinoma.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500608

Ingestion of a moderate dose of alcohol enhances physical exercise-induced changes in blood lactate concentration
Provedor de dados: 56
Autores: Teixeira-Coelho,F.; Santos,D.F.C.; Santos,G.A.; Sousa,T.F.; Moreira,S.R.; Souza,M.V.C.; Wanner,S.P.
The consumption of alcoholic beverages influences carbohydrate and lipid metabolism, although it is not yet clear whether metabolism during physical exercise at different intensities is also affected. This was the objective of the present study. Eight young and healthy volunteers performed a treadmill test to identify the running speed corresponding to a lactate concentration of 4 mM (S4mM). At least 48 h later, they were subjected to two experimental trials (non-alcohol or alcohol) in which they performed two 1-km running sessions at the following intensities: 1) S4mM; 2) 15% above S4mM. In both trials, blood lactate, triglycerides, and glucose concentrations were measured before and after exercise. The acute alcohol intake increased triglycerides, but...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endurance; Ethanol; Glucose; Lactate; Metabolism; Treadmill running.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400601

A high-carbohydrate diet induces greater inflammation than a high-fat diet in mouse skeletal muscle
Provedor de dados: 56
Autores: Antunes,M.M.; Godoy,G.; de Almeida-Souza,C.B.; da Rocha,B.A.; da Silva-Santi,L.G.; Masi,L.N.; Carbonera,F.; Visentainer,J.V.; Curi,R.; Bazotte,R.B.
We previously reported that both the high-carbohydrate diet (HCD) and high-fat diet (HFD) given for two months promote lipid deposition and inflammation in the liver and brain of mice. The results obtained indicate a tissue-specific response to both diets. Herein, we compared the effects of HCD and HFD on fatty acid (FA) composition and inflammation in the gastrocnemius muscle. Male Swiss mice were fed with HCD or HFD for 1 or 2 months. Saturated FA (SFA), monounsaturated FA (MUFA), n-3 polyunsaturated FA (n-3 PUFA), and n-6 PUFA were quantified. The activities of stearoyl-CoA desaturase 1 (SCD-1), Δ-6 desaturase (D6D), elongase 6, and de novo lipogenesis (DNL) were estimated. As for indicators of the inflammatory tissue state, we measured myeloperoxidase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saturated fatty acids; Monounsaturated fatty acids; Polyunsaturated fatty acids; N-6/n-3 PUFA ratio; SFA/n-3 PUFA ratio.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300603

Indomethacin attenuates mechanical allodynia during the organization but not the maintenance of the peripheral neuropathic pain induced by nervus ischiadicus chronic constriction injury
Provedor de dados: 56
Autores: Medeiros,P.; dos Santos,I.R.; Medeiros,A.C.; da Silva,J.A.; Ferreira,S.H.; de Freitas,R.L.; Coimbra,N.C.
The neurochemical mechanisms underlying neuropathic pain (NP) are related to peripheral and central sensitization caused by the release of inflammatory mediators in the peripheral damaged tissue and ectopic discharges from the injured nerve, leading to a hyperexcitable state of spinal dorsal horn neurons. The aim of this work was to clarify the role played by cyclooxygenase (COX) in the lesioned peripheral nerve in the development and maintenance of NP by evaluating at which moment the non-steroidal anti-inflammatory drug indomethacin, a non-selective COX inhibitor, attenuated mechanical allodynia after placing one loose ligature around the nervus ischiadicus, an adaptation of Bennett and Xie's model in rodents. NP was induced in male Wistar rats by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Non-steroidal anti-inflammatory drugs; Indomethacin; Chronic constriction injury of the nervus ischiadicus; Neuropathic pain; Mechanical allodynia; Von Frey test.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500606

Effects of Rab7 gene up-regulation on renal fibrosis induced by unilateral ureteral obstruction
Provedor de dados: 56
Autores: Xu,Qing; Liu,Lei; Yang,Yiqiong; Wang,Zhi; Cai,Yingying; Hong,Tingting; Chen,Pingsheng.
Rab7, an important member of the Rab family, is closely related to autophagy, endocytosis, apoptosis, and tumor suppression but few studies have described its association with renal fibrosis. In the early stage, our group studied the effects of Rab7 on production and degradation of extracellular matrix in hypoxic renal tubular epithelial cells. Because cell culture in vitro is different from the environment in vivo, it is urgent to understand the effects in vivo. In our current study, we established a renal fibrosis model in Rab7-knock-in mice (prepared by CRISPR/Cas9 technology) and wild type (WT) C57BL/6 mice using unilateral ureteral obstruction (UUO). Seven and 14 days after UUO, the expression of the Rab7 protein in WT mice, as well as the autophagic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rab7; Autophagy; Renal fibrosis; Crispr/cas9; Endocytosis; Lipophagy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400603

MicroRNA-4290 suppresses PDK1-mediated glycolysis to enhance the sensitivity of gastric cancer cell to cisplatin
Provedor de dados: 56
Autores: Qian,Yan; Wu,Xu; Wang,Haixiao; Hou,Guowei; Han,Xiao; Song,Wei.
The development of chemotherapy resistance significantly impairs the efficiency of chemotherapy, but the underlying mechanisms of chemotherapy resistance in gastric cancer (GC) are complicated and still need to be further explored. Here, we aimed to reveal the effects of miR-4290/PDK1 (pyruvate dehydrogenase kinase 1) axis on chemotherapy resistance of GC in vitro. The expression patterns of miR-4290 in GC tissues and cell lines were determined by real-time quantitative PCR. Kaplan-Meier was used to assess the relationship between miR-4290 expression levels and patients' overall survival. CCK-8 and flow cytometry technologies were applied to detect cell proliferation and apoptosis. The luciferase gene reporter assay was used to evaluate the interaction...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MiR-4290; PDK1; Cisplatin; Chemoresistance; Gastric cancer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500604

Effect of Camellia sinensis teas on left ventricular hypertrophy and insulin resistance in dyslipidemic mice
Provedor de dados: 56
Autores: Ferreira,M.C.L.; Lima,L.N.; Cota,L.H.T.; Costa,M.B.; Orsi,P.M.E.; Espíndola,R.P.; Albanez,A.V.; Rosa,B.B.; Carvalho,M.G.S.; Garcia,J.A.D.
The control of dyslipidemia using plants is an important subject of studies since it has numerous benefits in cardiovascular protection. The objective of this study was to evaluate the effect of three Camellia sinensis L. teas (green, red, and white) on left ventricular hypertrophy and insulin resistance in low-density lipoprotein receptor knockout (LDLr-/-) mice fed a high-fat diet. The LDLr-/- mice were divided into four experimental groups: Group C: standard feed; Group CT: standard feed and three teas, Group HL: high-fat feed; HLT Group: high-fat feed and three teas. The three types of tea (green, red, and white) originated from different processing of the Camellia sinensis L. plant, and were administered associated once a day at a dose of 25 mg/kg by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lipids; Cardiovascular system; Tea; Glucose; Insulin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500607

Chlorophyll treatment combined with photostimulation increases glycolysis and decreases oxidative stress in the liver of type 1 diabetic rats
Provedor de dados: 56
Autores: Wunderlich,A.L.M.; Azevedo,S.C.S.F.; Yamada,L.A.; Bataglini,C.; Previate,C.; Campanholi,K.S.S.; Pereira,P.C.S.; Caetano,W.; Kaplum,V.; Nakamura,C.V.; Nakanishi,A.B.S.; Comar,J.F.; Pedrosa,M.M.D.; Godoi,V.A.F.
Photodynamic therapy (PDT) promotes cell death, and it has been successfully employed as a treatment resource for neuropathic complications of diabetes mellitus (T1DM) and hepatocellular carcinoma. The liver is the major organ involved in the regulation of energy homeostasis, and in pathological conditions such as T1DM, changes in liver metabolic pathways result in hyperglycemia, which is associated with multiple organic dysfunctions. In this context, it has been suggested that chlorophyll-a and its derivatives have anti-diabetic actions, such as reducing hyperglycemia, hyperinsulinemia, and hypertriglyceridemia, but these effects have not yet been proven. Thus, the biological action of PDT with chlorophyll-a on hepatic parameters related to energy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Photopigment; Diabetes; Metabolism; Free Radicals; Phototherapy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100601

Alanyl-glutamine protects the intestinal barrier function in trained rats against the impact of acute exhaustive exercise
Provedor de dados: 56
Autores: Freitas,A.K.L.; Silva,M.T.B.; Silva,C.M.S.; Prata,M.M.G.; Rodrigues,F.A.P.; Siqueira,R.J.B.; Lima,A.A.M.; Santos,A.A.; Havt,A.
Strenuous exercise triggers deleterious effects on the intestinal epithelium, but their mechanisms are still uncertain. Here, we investigated whether a prolonged training and an additional exhaustive training protocol alter intestinal permeability and the putative effect of alanyl-glutamine (AG) pretreatment in this condition. Rats were allocated into 5 different groups: 1) sedentary; 2 and 3) trained (50 min per day, 5 days per week for 12 weeks) with or without 6 weeks oral (1.5 g/kg) AG supplementation; 4 and 5) trained and subjected to an additional exhaustive test protocol with or without oral AG supplementation. Venous blood samples were collected to determine gasometrical indices at the end of the 12-week protocol or after exhaustive test. Lactate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Claudin-2; Intestinal permeability; Lactulose-mannitol test; Physical exercise; Tight junctions.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500602

Effect of fasudil on experimental autoimmune neuritis and its mechanisms of action
Provedor de dados: 56
Autores: Zhao,Yanyin; Liu,Bingyou; Wang,Yi; Xiao,Baoguo.
This study aimed to investigate the therapeutic effect of fasudil on treating experimental autoimmune neuritis (EAN). Twenty-four EAN mice were randomly assigned to fasudil treatment (Fasudil group) or saline treatment (EAN model group) for 28 days. Clinical symptom score was evaluated every other day; inflammatory cell infiltration, demyelination, anti-myelin basic protein (MBP), inflammatory cytokines, inducible nitric oxide synthase (iNOS), and arginase-1 were detected in sciatic nerves at day 28. Th1, Th2, Th17, and Tregs proportions in splenocytes were detected at day 28. Clinical symptom score was found to be attenuated in the Fasudil group compared to the EAN model group from day 12 to day 28. Sciatic nerve inflammatory cell counts by HE staining...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fasudil; Experimental autoimmune neuritis; Th1; Th17; Tregs; M2 macrophages polarization.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100607

Tissue fusion technology versus suture and staple in porcine bowel anastomosis: an in vivo study
Provedor de dados: 56
Autores: Pan,Hong; Leung,Kevin K.C.; Ng,Enders Kwok Wai.
The aim of this study was to make a comparison between the tissue fusion technique and conventional methods for sealing bowel anastomosis. Eighteen female domestic pigs (Suidae, Sus) were used in our study. Tissue-fused anastomoses (LigaSure groups) were made in 13 animals (5 anastomoses per animal), which were subdivided into 4 groups according to different manufacturing settings: “LigaSure-L-1” and “LigaSure-L-2”, with low energy output level with 1 or 2 device-activated tissue sealing times, and “LigaSure-M” and “LigaSure-H”, with medium or high energy output level. As controls, automatically stapled (GIA group) and hand-sewn (suture group) anastomoses were utilized in 3 and 2 animals, respectively. There was no statistical difference in the overall...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bowel anastomosis; Tissue fusion technology; Porcine; In vivo; Suture; Staple.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500605

Retraction notice for: “Risk factors for early-onset ventilator-associated pneumonia in aneurysmal subarachnoid hemorrhage patients” [Braz J Med Biol Res (2018) 51(7): e6830]
Provedor de dados: 56
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100951

Tai Chi versus routine exercise in patients with early- or mild-stage Parkinson's disease: a retrospective cohort analysis
Provedor de dados: 56
Autores: Li,Quanhao; Liu,Jinmei; Dai,Fei; Dai,Fengling.
Parkinson's disease cannot be cured but symptoms can be improved by making use of physical therapy. The objective of the study was to compare the effect of routine exercises and Tai Chi on physical and clinical performance in elderly people suffering from Parkinson's disease. Data from interviews, physical and clinical performance, and levodopa consumption of 500 patients with confirmed Parkinson's disease (severity level I to III) were collected and analyzed. Participants who received 80 min/day Tai Chi 3 times/week for 2 months were included in the Tai Chi (TC) group (n=250) and those who received 90 min/day routine exercise 3 times/week for 2 months were included in routine exercise (RE) group (n=250). Timed up-and-go, 50-foot speed walk, and functional...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Fall; Levodopa; Parkinson's disease; Physical therapy; Tai Chi.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200606

Kidney health for everyone everywhere – from prevention to detection and equitable access to care
Provedor de dados: 56
Autores: Li,P. Kam-Tao; Garcia-Garcia,G.; Lui,Siu-Fai; Andreoli,S.; Fung,W. Wing-Shing; Hradsky,A.; Kumaraswami,L.; Liakopoulos,V.; Rakhimova,Z.; Saadi,G.; Strani,L.; Ulasi,I.; Kalantar-Zadeh,K.
The global burden of chronic kidney disease (CKD) is rapidly increasing with a projection of becoming the 5th most common cause of years of life lost globally by 2040. CKD is a major cause of catastrophic health expenditure. The costs of dialysis and transplantation consume up to 3% of the annual healthcare budget in high-income countries. However, the onset and progression of CKD is often preventable. In 2020, the World Kidney Day campaign highlights the importance of preventive interventions – be it primary, secondary, or tertiary. This article focuses on outlining and analyzing measures that can be implemented in every country to promote and advance CKD prevention. Primary prevention of kidney disease should focus on the modification of risk factors and...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Kidney diseases; Prevention; Detection; Awareness.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300101

The APOB rs693 polymorphism impacts the lipid profile of Brazilian older adults
Provedor de dados: 56
Autores: Alves,E.S.; Henriques,A.D.; Tonet-Furioso,A.C.; Paula,R.S.; Gomes,L.O.; Moraes,C.F.; Nóbrega,O.T.
The apolipoprotein B (APOB) gene contains several polymorphic sites described as risk modifiers for cardiovascular events. The objective of this study was to verify the association of the classic APOB Xba I polymorphism (rs693) with atherosclerotic risk factors in a segment of the Brazilian elderly population considering their usual dietary intake. Clinical and biochemical characteristics as well as total caloric and fat intake data were determined from 644 elderly individuals. Polymorphism analysis was performed by conventional polymerase chain reaction followed by enzyme restriction. Statistical analyses compared measures and proportions according to different APOB genotypic combinations. Statistically significant association was found between Xba I...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apolipoprotein B; Genetic polymorphism; Elderly; Hyperlipidemia; Diet.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300608

CCR3 antagonist impairs estradiol-induced eosinophil migration to the uterus in ovariectomized mice
Provedor de dados: 56
Autores: Araújo,J.M.D.; Silva,L.A.S.; Felix,F.B.; Camargo,E.A.; Grespan,R.
Eosinophils are abundant in the reproductive tract, contributing to the remodeling and successful implantation of the embryo. However, the mechanisms by which eosinophils migrate into the uterus and their relationship to edema are still not entirely clear, since there are a variety of chemotactic factors that can cause migration of these cells. Therefore, to evaluate the role of CCR3 in eosinophil migration, ovariectomized C57BL/6 mice were treated with CCR3 antagonist SB 328437 and 17β-estradiol. The hypothesis that the CCR3 receptor plays an important role in eosinophil migration to the mouse uterus was confirmed, because we observed reduction in eosinophil peroxidase activity in these antagonist-treated uteruses. The antagonist also influenced uterine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estradiol; Chemokine receptor; Immunology; Menopause; Uterus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100603

Co-transfection of hepatocyte growth factor and truncated TGF-β type II receptor inhibit scar formation
Provedor de dados: 56
Autores: Xu,Ji-Hua; Zhao,Wan-Yi; Fang,Qing-Qing; Wang,Xiao-Feng; Zhang,Ding-Ding; Hu,Yan-Yan; Zheng,Bin; Tan,Wei-Qiang.
Wound scarring remains a major challenge for plastic surgeons. Transforming growth factor (TGF)-β plays a key role in the process of scar formation. Previous studies have demonstrated that truncated TGF-β type II receptor (t-TGF-βRII) is unable to continue signal transduction but is still capable of binding to TGF-β, thereby blocking the TGF-β signaling pathway. Hepatocyte growth factor (HGF) is a multifunctional growth factor that promotes tissue regeneration and wound healing. Theoretically, the combination of HGF and t-TGF-βRII would be expected to exert a synergistic effect on promoting wound healing and reducing collagen formation. In the present study, lentivirus-mediated transfection of the two genes (t-TGF-βRII/HGF) into fibroblasts in vitro and in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wound healing; Truncated transforming growth factor-β type II receptor; Hepatocyte growth factor; Scar; Rat; Lentivirus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100611

Anti-placental growth factor antibody ameliorates hyperoxia-mediated impairment of lung development in neonatal rats
Provedor de dados: 56
Autores: Zhang,Zhiqun; Zhong,Ying; Li,Xiaoxia; Huang,Xianmei; Du,Lizhong.
This study investigates the effect of the overexpression of the placental growth factor (PGF) and hyperoxia on lung development and determines whether anti-PGF antibody ameliorates hyperoxia-mediated impairment of lung development in newborn rats. After exposure to normoxic conditions for seven days, newborn rats subjected to normoxia were intraperitoneally or intratracheally injected with physiological saline, adenovirus-negative control (Ad-NC), or adenovirus-PGF (Ad-PGF) to create the Normoxia, Normoxia+Ad-NC, and Normoxia+Ad-PGF groups, respectively. Newborn rats subjected to hyperoxia were intraperitoneally injected with physiological saline or anti-PGF antibodies to create the Hyperoxia and Hyperoxia+anti-PGF groups, respectively. Our results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bronchopulmonary dysplasia; Anti-PGF antibody; Newborn rats; Hyperoxia; Lung tissue injury.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200604

Early and late neuropathological features of meningoencephalitis associated with Maraba virus infection
Provedor de dados: 56
Autores: Maia-Farias,A.; Lima,C.M.; Freitas,P.S.L.; Diniz,D.G.; Rodrigues,A.P.D.; Quaresma,J.A.S.; Diniz,C.W. Picanço; Diniz,J.A.
Maraba virus is a member of the genus Vesiculovirus of the Rhabdoviridae family that was isolated in 1983 from sandflies captured in the municipality of Maraba, state of Pará, Amazônia, Brazil. Despite 30 years having passed since its isolation, little is known about the neuropathology induced by the Maraba virus. Accordingly, in this study the histopathological features, inflammatory glial changes, cytokine concentrations, and nitric oxide activity in the encephalon of adult mice subjected to Maraba virus nostril infection were evaluated. The results showed that 6 days after intranasal inoculation, severe neuropathological-associated disease signs appeared, including edema, necrosis and pyknosis of neurons, generalized congestion of encephalic vessels,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Maraba virus; Vesiculovirus; Microglia; Astrocytes; Cytokines; Nitric oxide.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400610

Erratum for: miR-26a-5p protects against myocardial ischemia/reperfusion injury by regulating the PTEN/PI3K/AKT signaling pathway
Provedor de dados: 56
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300901

Manual and semiautomatic segmentation of bone sarcomas on MRI have high similarity
Provedor de dados: 56
Autores: Dionísio,F.C.F.; Oliveira,L.S.; Hernandes,M.A.; Engel,E.E.; Rangayyan,R.M.; Azevedo-Marques,P.M.; Nogueira-Barbosa,M.H.
The aims of this study were to evaluate the intra- and interobserver reproducibility of manual segmentation of bone sarcomas in magnetic resonance imaging (MRI) studies and to compare manual and semiautomatic segmentation methods. This retrospective study included twelve osteosarcoma and eight Ewing sarcoma MRI studies performed prior to any therapeutic intervention. All cases were histopathologically confirmed. Three radiologists used 3D-Slicer software to perform manual segmentation of bone sarcomas in a blinded and independent manner. One radiologist segmented manually and also performed semiautomatic segmentation with the GrowCut tool. Segmentation exercises were timed for comparison. The dice similarity coefficient (DSC) and Hausdorff distance (HD)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ewing sarcoma; Osteosarcoma; Manual segmentation; Semiautomatic segmentation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200605

Use of flash glucose-sensing technology in patients with type 2 diabetes treated with liraglutide combined with CSII: a pilot study
Provedor de dados: 56
Autores: Yao,Ming-yan; Li,Li-qin; Ma,Jian-xia; Xue,Peng; Li,Yu-kun.
Glycemic variability (GV) may be linked to the development of diabetic complications by inducing inflammation, oxidative stress, and endothelial dysfunction. Flash glucose monitoring (FGM) provides a novel method of continuously monitoring interstitial glucose levels for up to 14 days. This study randomly assigned poorly controlled type 2 diabetes mellitus patients treated with metformin and multiple daily injections of insulin (n=60) to either continuous subcutaneous insulin infusion (CSII) treatment or CSII in combination with liraglutide (CSII+Lira) treatment for 14 days during hospitalization. GV was assessed using a FGM system; weight and cardiometabolic biomarkers were also evaluated. The coefficient of variation was significantly reduced in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flash glucose monitoring; Glucagon-like peptide-1 analog; Continuous subcutaneous insulin infusion; Glucose fluctuation; Cardiometabolic risk markers; Type 2 diabetes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100604

Inhibition of miR-383 suppresses oxidative stress and improves endothelial function by increasing sirtuin 1
Provedor de dados: 56
Autores: Hu,Baoxiang; Gong,Zushun; Bi,Zhaohui.
Previous research has shown that suppression of miR-383 can prevent inflammation of the endothelium, as well as postpone the development of atherosclerosis. However, the role of miR-383 in endothelial cell apoptosis in diabetes remains unclear. The aim of this study was to investigate the function of miR-383 in high glucose-induced apoptosis and oxidative stress in endothelial cells. A series of experiments involving qualitative polymerase chain reaction, cell transfection, luciferase assay, assessment of cell death, detection of catalase and superoxide dismutase concentrations, detection of intracellular reactive oxygen species (ROS), and western blot analysis were performed in this study. We found that miR-383 expression was promoted, while...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MiR-383; Oxidative stress; Human umbilical vein endothelial cells; Sirtuin 1.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200603

lncRNA OIP5-AS1 targets ROCK1 to promote cell proliferation and inhibit cell apoptosis through a mechanism involving miR-143-3p in cervical cancer
Provedor de dados: 56
Autores: Song,Linlin; Wang,Linlin; Pan,Xiaoli; Yang,Caihong.
Opa-interacting protein 5 antisense transcript 1 (OIP5-AS1) is one kind of cytoplasmic long non-coding RNA (lncRNA), which has been demonstrated to play a critical function in multiple cancers. However, the detailed mechanism of OIP5-AS1 in the regulation of cervical cancer progression is still obscure. Here, we demonstrated that lncRNA OIP5-AS1 was upregulated in cervical cancer and was correlated with poor prognosis by bioinformatics studies. OIP5-AS1 depletion inhibited cell proliferation and promoted cell apoptosis in cervical cancer cells. Furthermore, we clarified that ROCK1 was the downstream effector of OIP5-AS1 and OIP5-AS1 acted as a molecular sponge of miR-143-3p. Finally, we verified that OIP5-AS1 exerted its function in the regulation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: LncRNA; OIP5-AS1; Cervical cancer; MiR-143-3p; ROCK1.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100608

Enhancement of cellular activity in hyperglycemic mice dermal wounds dressed with chitosan-alginate membranes
Provedor de dados: 56
Autores: Breder,J.S.C.; Pires,A.L.R.; Azevedo,F.F.; Apolinário,P.P.; Cantaruti,T.; Jiwani,S.I.; Moraes,Â.M.; Consonni,S.R.; Araújo,E.P.; Adams,G.G.; Saad,M.J.A.; Lima,M.H.M.
The use of specially designed wound dressings could be an important alternative to facilitate the healing process of wounds in the hyperglycemic state. Biocompatible dressings combining chitosan and alginate can speed up wound healing by modulating the inflammatory phase, stimulating fibroblast proliferation, and aiding in remodeling phases. However, this biomaterial has not yet been explored in chronic and acute lesions of diabetic patients. The aim of this study was to evaluate the effect of topical treatment with a chitosan-alginate membrane on acute skin wounds of hyperglycemic mice. Diabetes mellitus was induced by streptozotocin (60 mg · kg-1 · day-1 for 5 days, intraperitoneally) and the cutaneous wound was performed by removing the epidermis using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: C57BL/6J mice; Wound healing; Wound dressing; Polysaccharides; Diabetes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100602

SAD-B modulates epileptic seizure by regulating AMPA receptors in patients with temporal lobe epilepsy and in the PTZ-induced epileptic model
Provedor de dados: 56
Autores: Li,Rong; He,Miaoqing; Wu,Bing; Zhang,Peng; Zhang,Qinbin; Chen,Yangmei.
α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors are the predominant mediators of glutamate-induced excitatory neurotransmission. It is widely accepted that AMPA receptors are critical for the generation and spread of epileptic seizure activity. Dysfunction of AMPA receptors as a causal factor in patients with intractable epilepsy results in neurotransmission failure. Brain-specific serine/threonine-protein kinase 1 (SAD-B), a serine-threonine kinase specifically expressed in the brain, has been shown to regulate AMPA receptor-mediated neurotransmission through a presynaptic mechanism. In cultured rat hippocampal neurons, the overexpression of SAD-B significantly increases the frequency of miniature excitatory postsynaptic currents...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: SAD-B; AMPA receptor; Temporal lobe epilepsy; PTZ.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400602

Evaluation of the cytotoxic and genotoxic effects by melamine and cyanuric acid co-exposure in human embryonic kidney 293 cells
Provedor de dados: 56
Autores: Xu,Xianrong; Lu,Jing; Sheng,Hongqiang; Zhang,Long; Gan,Tieer; Zhang,Jianyun; Xu,Yuying; Zhu,Xinqiang; Yang,Jun.
The melamine and cyanuric acid (CA) complex has been suggested to cause the toxic effects observed in melamine-contaminated food or milk. However, the cytotoxic and genotoxic effects of co-exposure to melamine and CA are not fully clear. Therefore, the cytotoxic effects of melamine and CA were first examined by co‐exposure in human kidney 293 cells using the MTT assay. During a 24-h period for the three concentrations tested (0.5, 1, and 5 mg/mL), neither melamine nor CA alone showed significant toxic effects on 293 cells at 0.5 mg/mL, while higher concentrations led to decreased in cell viability. However, co-exposure to several combinations of melamine and CA [100:1, 10:1, 1:10, and 1:100 (v:v), at a final concentration of 0.5 mg/mL] did cause...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Melamine; Cyanuric acid; ΓH2AX; DNA damage; Genotoxicity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500612

Enhanced external counterpulsation improves cardiac function in Beagles after cardiopulmonary resuscitation
Provedor de dados: 56
Autores: Xiong,Jing; Zhang,Wei; Wei,Hongyan; Li,Xin; Dai,Gang; Hu,Chunlin.
The aim of this study was to investigate the influence of enhanced external counterpulsation (EECP) on the cardiac function of beagle dogs after prolonged ventricular fibrillation. Twenty-four adult male beagles were randomly divided into control and EECP groups. Ventricular fibrillation was induced in the animals for 12 min, followed by 2 min of cardiopulmonary resuscitation. They then received EECP therapy for 4 h (EECP group) or not (control group). The hemodynamics was monitored using the PiCCO2 system. Blood gas and hemorheology were assessed at baseline and at 1, 2, and 4 h after return of spontaneous circulation (ROSC). The myocardial blood flow (MBF) was quantified by 18F-flurpiridaz PET myocardial perfusion imaging at baseline and 4 h after ROSC....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cardiopulmonary resuscitation; Hemodynamics; Enhanced external counterpulsation; PiCCO2; Myocardial blood flow; Beagle dog.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100609

p19Arf sensitizes B16 melanoma cells to interferon-β delivered via mesenchymal stem cells in vitro
Provedor de dados: 56
Autores: Da-Costa,R.C.; Vieira,I.L.; Hunger,A.; Tamura,R.E.; Strauss,B.E.
The immune stimulatory and anti-neoplastic functions of type I interferon have long been applied for the treatment of melanoma. However, the systemic application of high levels of this recombinant protein is often met with toxicity. An approach that provides localized, yet transient, production of type I interferon may overcome this limitation. We propose that the use of mesenchymal stem cells (MSCs) as delivery vehicles for the production of interferon-β (IFNβ) may be beneficial when applied together with our cancer gene therapy approach. In our previous studies, we have shown that adenovirus-mediated gene therapy with IFNβ was especially effective in combination with p19Arf gene transfer, resulting in immunogenic cell death. Here we showed that MSCs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene therapy; Immunotherapy; Stem cell therapy; Adenovirus; P53; Interferon-β.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300601

Prognostic value of increased expression of RBM8A in gastric cancer
Provedor de dados: 56
Autores: Lv,Xinting; Cheng,Huifei.
This study was designed to investigate the expression of RBM8A protein in patients with gastric cancer (GC) and to explore its correlation with clinical pathological features as well as prognosis. One hundred pairs of gastric carcinoma tissues and adjacent tissues from patients undergoing gastrectomy for GC were included in this study. The protein expression level of RBM8A was determined by immunohistochemistry using tissue microarrays. We also detected the mRNA expression level of RBM8A in 16 pairs of gastric carcinoma tissues and adjacent tissues. Meanwhile, we predicted the potential correlation between RBM8A and tumor stages as well as survival condition in patents with GC based on The Cancer Genome Atlas (TCGA) database. The correlation of RBM8A with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gastric cancer; RBM8A; Proto-oncogene; Prognosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400608

Up-regulated miR-106b inhibits ox-LDL-induced endothelial cell apoptosis in atherosclerosis
Provedor de dados: 56
Autores: Zhang,Yunqing; Wang,Li; Xu,Jie; Kong,Xiaomei; Zou,Lin.
This research aimed to explore the molecular mechanism of microRNA (miR)-106b in cell apoptosis of atherosclerosis (AS). Human aortic endothelial cells (HAECs) were divided into control group, oxidized-low-density lipoproteins (ox-LDL) group, miR-106b NC+ox-LDL group, miR-106b mimics+ox-LDL group, miR-106b mimics+PTEN+ox-LDL group, and miR-106b mimics+empty+ox-LDL group. Real-time fluorescence quantitative polymerase chain reaction, cholecystokinin, TdT-mediated biotinylated nick end-labeling assay, luciferase reporter gene assay, and flow cytometry analysis were performed to determine the morphology, proliferation, and apoptosis in HSECs. Moreover, the levels of phosphatase and tensin homolog deleted on chromosome 10 (PTEN), Bcl-2, p-P13K, and p-AKT in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atherosclerosis; Ox-LDL; MiR-106b; PTEN; P13K/AKT; Endothelial cell apoptosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300610

Methylophiopogonanone A, an Ophiopogon homoisoflavonoid, alleviates high-fat diet-induced hyperlipidemia: assessment of its potential mechanism
Provedor de dados: 56
Autores: Li,Zhao; Wu,Ying-Ying; Yu,Bei-Xin.
Methylophiopogonanone A (MO-A), a homoisoflavonoid extracted from Ophiopogon japonicus, has been shown to attenuate myocardial apoptosis and improve cerebral ischemia/reperfusion injury. However, the hypolipidemic effects remain unknown. This study was performed to investigate a potential hypolipidemic effect of MO-A in hyperlipidemia rats, as well as its underlying mechanism of action. A rat model of hyperlipidemia was induced by a high-fat diet (HFD). Animals were randomly divided into three groups (n=8/group): normal control group (NC), HFD group, and HFD+MO-A (10 mg·kg-1·d-1) treatment group. The effects of MO-A on serum lipids, body weight, activity of lipoprotein metabolism enzyme, and gene expression of lipid metabolism were evaluated in HFD-induced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ophiopogon japonicus; PPARα; High-fat diet; Lipid lowering; Dyslipidemia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300609

A poor prognosis in human hepatocellular carcinoma is associated with low expression of DPP4
Provedor de dados: 56
Autores: Yu,Hao; Mei,Xiao-Ping; Su,Peng-Fei; Jin,Guang-Zhi; Zhou,Hong-Kun.
This study aimed to explore the prognostic role of dipeptidyl peptidase 4 (DPP4) expression in hepatocellular carcinoma (HCC). DPP4 expression was measured in formalin-fixed paraffin-embedded specimens that were gathered from 327 HCC patients. Immunohistochemistry analyses were utilized to examine DPP4 expression characteristics and prognostic values (overall survival (OS) and time to recurrence) of DDP4 in HCC tissues. In addition, a patient-derived xenograft (PDX) model was used to assess the correlation between DPP4 expression and tumor growth in vivo. DPP4 was expressed in low levels in HCC tissues in contrast to paired peritumoral tissues (38 cases were down-regulated in a total of 59 cases, 64.4%. P=0.0202). DPP4 expression was significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dipeptidyl peptidase 4; Hepatocellular carcinoma; Immunohistochemistry; X-tile; Overall survival; Patient-derived xenograft.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400609

lncRNA ZEB1-AS1 inhibits high glucose-induced EMT and fibrogenesis by regulating the miR-216a-5p/BMP7 axis in diabetic nephropathy
Provedor de dados: 56
Autores: Meng,Qingqing; Zhai,Xiaolin; Yuan,Yi; Ji,Qing; Zhang,Pengyuan.
Diabetic nephropathy (DN) is one of the leading causes of mortality in diabetic patients. Long non-coding RNA zinc finger E-box binding homeobox 1 antisense 1 (ZEB1-AS1) plays a crucial role in the development of various diseases, including DN. However, the molecular mechanism of ZEB1-AS1 in DN pathogenesis remains elusive. An in vitro DN model was established by treating HK-2 cells with high glucose (HG). Quantitative polymerase chain reaction (qRT-PCR) was utilized to detect the expression levels of ZEB1-AS1, microRNA-216a-5p (miR-216a-5p), and bone morphogenetic protein 7 (BMP7). Western blot assay was used to evaluate the protein levels of BMP7, epithelial-to-mesenchymal transition (EMT)-related proteins, and fibrosis markers. Additionally, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ZEB1-AS1; MiR-216a-5p; BMP7; Diabetic nephropathy; EMT; Fibrogenesis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400607

Feasibility of non-intubated anesthesia and regional block for thoracoscopic surgery under spontaneous respiration: a prospective cohort study
Provedor de dados: 56
Autores: Li,Hanwei; Huang,Daiqiang; Qiao,Kun; Wang,Zheng; Xu,Shiyuan.
Data about the feasibility and safety of thoracoscopic surgery under non-intubated anesthesia and regional block are limited. In this prospective study, 57 consecutive patients scheduled for thoracoscopic surgery were enrolled. Patients were sedated with dexmedetomidine and anesthetized with propofol and remifentanil. Ropivacaine was used for intercostal nerve and paravertebral block. Lidocaine was used for vagal block. The primary outcomes were mean arterial pressure (MAP), heart rate (HR), oxygen saturation, and end-tidal carbon dioxide partial pressure (ETCO2) at T0 (pre-anesthesia), T1 (immediately after laryngeal mask/nasopharyngeal airway placement), T2 (immediately after skin incision), T3 (10 min after opening the chest), T4 (end of surgery), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Non-intubated anesthesia; Paravertebral block; Postoperative recovery; Thoracoscopy; Spontaneous respiration.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100605

Possible mechanisms involved in the effect of the subchronic administration of rosuvastatin on endothelial function in rats with metabolic syndrome
Provedor de dados: 56
Autores: Lozano-Cuenca,J.; Valencia-Hernández,I.; López-Canales,O.A.; Flores-Herrera,H.; López-Mayorga,R.M.; Castillo-Henkel,E.F.; López-Canales,J.S.
Metabolic syndrome is a multifaceted condition associated with a greater risk of various disorders (e.g., diabetes and heart disease). In a rat model of metabolic syndrome, an acute in vitro application of rosuvastatin causes relaxation of aortic rings. Since the outcome of a subchronic rosuvastatin treatment is unknown, the present study explored its effect on acetylcholine-induced vasorelaxation of aortic rings from rats with metabolic syndrome. Animals were submitted to a 16-week treatment, including a standard diet, a cafeteria-style diet (CAF-diet), or a CAF-diet with daily rosuvastatin treatment (10 mg/kg). After confirming the development of metabolic syndrome in rats, aortic segments were extracted from these animals (those treated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rosuvastatin; Metabolic syndrome; Rat aorta; Vasorelaxation; NO; K+ channel.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200607

SULF2 promotes tumorigenesis and inhibits apoptosis of cervical cancer cells through the ERK/AKT signaling pathway
Provedor de dados: 56
Autores: Jiang,Tao; Chen,Zhao-Hui; Chen,Zhe; Tan,Dan.
The objective of this study was to explore the role of the SULF2-mediated ERK/AKT signaling pathway in cervical cancer. SULF2 expression was detected in tumor tissues and tumor-adjacent normal tissues from cervical cancer patients. HeLa cells were divided into six groups: control group, NC group, SULF2 siRNA group, SULF2 group, SULF2 + LY294002 group, and SULF2 + U0125 group. In each group, HeLa cells received the corresponding treatment, followed by measurement of the cellular biological characteristics and expression of the ERK/AKT signaling pathway. We also confirmed the effect of SULF2 in vivo using a xenograft model in nude mice. SULF2 was upregulated in cervical cancer tissues, which was specifically associated with the clinical stage, histological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: SULF2; Cervical cancer; ERK/AKT; Proliferation; Apoptosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200608

Expression of CHPF modulates cell proliferation and invasion in lung cancer
Provedor de dados: 56
Autores: Cao,Chengsong; Liu,Yong; Wang,Qun; Zhao,Jing; Shi,Ming; Zheng,Junnian.
Lung cancer is the most common malignancy worldwide and is characterized by rapid progression, aggressive behavior, frequent recurrence, and poor prognosis. The TCGA database indicates that chondroitin polymerizing factor (CHPF) is overexpressed in human lung cancer tissues compared with normal tissues and this overexpression corresponds to shorter overall survival in lung cancer patients. In this study, to investigate the function of CHPF in lung cancer, lentiviral vectors expressing CHPF shRNA were stably transduced into A549 and H1299 cells. Compared to shCtrl cells, CHPF knockdown cells had significantly reduced proliferation. Furthermore, the silencing of CHPF in A549 and H1299 cells resulted in apoptotic induction, which led to decreased colony...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CHPF; Lung cancer; Proliferation; Invasion; TCGA; Affymetrix Gene Chip.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500610

The contribution of Latin American research to HPV epidemiology and natural history knowledge
Provedor de dados: 56
Autores: Sichero,L.; Picconi,M.A.; Villa,L.L.
Our aim was to review the major contributions of studies conducted in different Latin American (LA) countries to the field of human papillomavirus (HPV) epidemiology, natural history, risk of disease, and prevention strategies, mainly in the uterine cervix. Although cytological screening is established in several countries in LA, incidence and mortality rates from cervical cancer (CC) are still extremely high. Finally, data from large cohort studies conducted in LA countries provided seminal data to propose primary and secondary prevention modalities: the HPV vaccine has been introduced in the national immunization programs of several LA countries and multiple screening experiences using HPV testing are under evaluation in the region.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HPV; Latin America; Immunization; Cervical cancer; Natural history; Screening.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200302

Puerarin inhibits hepatocellular carcinoma invasion and metastasis through miR-21-mediated PTEN/AKT signaling to suppress the epithelial-mesenchymal transition
Provedor de dados: 56
Autores: Zhou,Yuan; Xue,Ruifeng; Wang,Jinglin; Ren,Haozhen.
Hepatocellular carcinoma (HCC) is one of the most common primary malignant tumors of the liver worldwide. Liver resection and transplantation are currently the only effective treatments; however, recurrence and metastasis rates are still high. Previous studies have shown that the epithelial-mesenchymal transition (EMT) is a key step in HCC invasion and metastasis. Inhibition of EMT has become a new therapeutic strategy for tumors. Recently, puerarin, a well-characterized component of traditional Chinese medicine, has been isolated from Pueraria radix and exerts positive effects on many diseases, particularly cancers. In this study, CCK-8, EdU immunofluorescence, colony formation, wound healing, and migration assays were used to detect the effects of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hepatocellular carcinoma; Metastasis; Epithelial-mesenchymal transition; PTEN; MiR-21.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400611

Total Panax notoginseng saponin inhibits balloon injury-induced neointimal hyperplasia in rat carotid artery models by suppressing pERK/p38 MAPK pathways
Provedor de dados: 56
Autores: Yang,Zheng; Zhang,Hui; An,Ming; Bian,Mengni; Song,Miao; Guo,Xiaohua; Liu,Quanli; Qiu,Min.
Total Panax notoginseng saponin (TPNS) is the main bioactivity compound derived from the roots and rhizomes of Panax notoginseng (Burk.) F.H. Chen. The aim of this study was to investigate the effectiveness of TPNS in treating vascular neointimal hyperplasia in rats and its mechanisms. Male Sprague-Dawley rats were randomly divided into five groups, sham (control), injury, and low, medium, and high dose TPNS (5, 10, and 20 mg/kg). An in vivo 2F Fogarty balloon-induced carotid artery injury model was established in rats. TPNS significantly and dose-dependently reduced balloon injury-induced neointimal area (NIA) (P&lt;0.001, for all doses) and NIA/media area (MA) (P&lt;0.030, for all doses) in the carotid artery of rats, and PCNA expression (P&lt;0.001,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Total Panax notoginseng saponin; Neointimal hyperplasia; Vascular injury; Phosphorylated extracellular signal-regulated kinase1/2; P38 mitogen-activated protein kinase.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100606

VPA/PLGA microfibers produced by coaxial electrospinning for the treatment of central nervous system injury
Provedor de dados: 56
Autores: Reis,K.P.; Sperling,L.E.; Teixeira,C.; Sommer,L.; Colombo,M.; Koester,L.S.; Pranke,P.
The central nervous system shows limited regenerative capacity after injury. Spinal cord injury (SCI) is a devastating traumatic injury resulting in loss of sensory, motor, and autonomic function distal from the level of injury. An appropriate combination of biomaterials and bioactive substances is currently thought to be a promising approach to treat this condition. Systemic administration of valproic acid (VPA) has been previously shown to promote functional recovery in animal models of SCI. In this study, VPA was encapsulated in poly(lactic-co-glycolic acid) (PLGA) microfibers by the coaxial electrospinning technique. Fibers showed continuous and cylindrical morphology, randomly oriented fibers, and compatible morphological and mechanical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coaxial electrospinning; VPA; Spinal cord injury.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400606

Aliskiren attenuates cardiac dysfunction by modulation of the mTOR and apoptosis pathways
Provedor de dados: 56
Autores: Zhao,Zhengbo; Liu,Han; Guo,Dongmei.
Aliskiren (ALS) is well known for its antihypertensive properties. However, the potential underlying the molecular mechanism and the anti-hypertrophic effect of ALS have not yet been fully elucidated. The aim of the present study was to investigate the role of ALS in mammalian target of rapamycin (mTOR) and apoptosis signaling using in vivo and in vitro models of cardiac hypertrophy. A rat model of cardiac hypertrophy was induced by isoproterenol treatment (5 mg·kg-1·day-1) for 4 weeks, with or without ALS treatment at 20 mg·kg-1·day-1. The expression of hypertrophic, fibrotic, and apoptotic markers was determined by RT-qPCR. The protein expression of apoptotic markers mTOR and p-mTOR was assessed by western blot analysis. The proliferation of H9C2 cells...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aliskiren; Cardiac hypertrophy; Fibrosis; Mammalian target of rapamycin; Apoptosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200602

Effects of NO/cGMP inhibitors in a rat model of anaphylactoid shock
Provedor de dados: 56
Autores: Albuquerque,A.A.S.; Ferreira,L.G.; Carvalho,M.T.M.; Capellini,V.K.; Evora,P.R.B.; Celotto,A.C.
Anaphylactic shock can be defined as an acute syndrome, and it is the most severe clinical manifestation of allergic diseases. Anaphylactoid reactions are similar to anaphylactic events but differ in the pathophysiological mechanism. Nitric oxide (NO) inhibitors during anaphylaxis suggest that NO might decrease the signs and symptoms of anaphylaxis but exacerbate associated vasodilation. Therefore, blocking the effects of NO on vascular smooth muscle by inhibiting the guanylate cyclase (GC) would be a reasonable strategy. This study aimed to investigate the effects of NO/cGMP pathway inhibitors methylene blue (MB), Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME), and indigo carmine (IC) in shock induced by compound 48/80 (C48/80) in rats. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endothelial cells; Allergy; Rodent; Nitric oxide; Anaphylaxis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300606

Sexual function after total laparoscopic hysterectomy or transabdominal hysterectomy for benign uterine disorders: a retrospective cohort
Provedor de dados: 56
Autores: Wang,Yiqun; Ying,Xiaoyan.
The objective of this study was to evaluate changes in sexual function after total laparoscopic hysterectomy (TLH) or transabdominal hysterectomy (TAH). This retrospective cohort study included patients with benign uterine tumors that were divided into TLH group and TAH group based on the hysterectomy technique used. Baseline, intraoperative, and postoperative characteristics were compared between groups. Postoperative sexual function was assessed using the Brief Index of Sexual Functioning for Women. The TLH and TAH groups contained 119 patients (age, 51.5±6.1 years) and 126 patients (age, 50.0±4.7 years), respectively. Baseline characteristics were comparable between groups, although uterine size was larger in the TAH group (P&lt;0.001). Compared with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hysterectomy; Laparoscopy; Laparotomy; Sexual activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300604

Critical role of metabotropic glutamate receptor 4 in bone marrow-derived dendritic cells in the Th17 cell differentiation and the melanogenesis of B16 cells
Provedor de dados: 56
Autores: Zhao,Guangming; Zhou,Wenhui; Liu,Ying; Wang,Yupeng; Li,Zhou; Song,Zhiqi.
Vitiligo is an acquired pigmentary disorder resulting from selective destruction of melanocytes. Emerging studies have suggested that T helper cell 17 (Th17) is potentially implicated in vitiligo development and progression. It was recently discovered that metabotropic glutamate receptor 4 (mGluR4) can modulate Th17-mediated adaptive immunity. However, the influence of mGluR4 on melanogenesis of melanocytes has yet to be elucidated. In the present study, we primarily cultured mouse bone marrow-derived dendritic cells (BMDC) and then knocked down and over-expressed mGluR4 using transfection. Transduced BMDC were co-cultured with CD4+ T cells and the expression of Th17-related cytokines were measured. The morphology and melanogenesis of B16 cells were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metabotropic glutamate receptor-4; Th17; Melanogenesis; Vitiligo.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400604

miR-26a-5p protects against myocardial ischemia/reperfusion injury by regulating the PTEN/PI3K/AKT signaling pathway
Provedor de dados: 56
Autores: Xing,Xiaowei; Guo,Shuang; Zhang,Guanghao; Liu,Yusheng; Bi,Shaojie; Wang,Xin; Lu,Qinghua.
Reperfusion strategies in acute myocardial infarction (AMI) can cause a series of additional clinical damage, defined as myocardial ischemia/reperfusion (I/R) injury, and thus there is a need for effective therapeutic methods to attenuate I/R injury. miR-26a-5p has been proven to be an essential regulator for biological processes in different cell types. Nevertheless, the role of miR-26a-5p in myocardial I/R injury has not yet been reported. We established an I/R injury model in vitro and in vivo. In vitro, we used cardiomyocytes to simulate I/R injury using hypoxia/reoxygenation (H/R) assay. In vivo, we used C57BL/6 mice to construct I/R injury model. The infarct area was examined by TTC staining. The level of miR-26a-5p and PTEN was determined by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acute myocardial infarction; MiR-26a-5p; PTEN; Apoptosis; PI3K/AKT pathway; Myocardial ischemia/reperfusion injury.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200601

A review on edible vaccines and their prospects
Provedor de dados: 56
Autores: Gunasekaran,B.; Gothandam,K.M.
For a long time, vaccines have been the main mode of defense and protection against several bacterial, viral, and parasitic diseases. However, the process of production and purification makes them expensive and unaffordable to many developing nations. An edible vaccine is when the antigen is expressed in the edible part of the plant. This reduces the cost of production of the vaccine because of ease of culturing. In this article, various types of edible vaccines that include algal and probiotics in addition to plants are discussed. Various diseases against which research has been carried out are also reviewed. This article focused on the conception of edible vaccines highlighting the various ways by which vaccines can be delivered.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vaccines; Plants; Algae; Probiotics; Edible vaccine.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200301

miR-378a-5p and miR-630 induce lens epithelial cell apoptosis in cataract via suppression of E2F3
Provedor de dados: 56
Autores: Gao,Weiwei; Zhou,Xiaoqing; Lin,Ruihua.
Cataract, an eye disease that threatens the health of millions of people, brings about severe economic burden for patients and society. MicroRNA (miR)-378a-5p and miR-630 were recognized as essential regulators in multiple cancers. However, the exact functions of miR-378a-5p and miR-630 in cataract are still unclear. The expression of miR-378a-5p, miR-630, and E2F transcription factor 3 (E2F3) in tissues and cells was measured by quantitative real-time polymerase chain reaction. The 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide assay was used to evaluate cell viability. Flow cytometry was conducted to analyze cell apoptosis. The interaction between E2F3 and miR-378a-5p or miR-630 was confirmed by dual-luciferase reporter assay. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MiR-378a-5p; MiR-630; E2F3; Apoptosis; Cataract.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500609

Protein structure of the venom in nine species of snake: from bio-compounds to possible healing agents
Provedor de dados: 56
Autores: Cristina,R.T.; Kocsis,R.; Tulcan,C.; Alexa,E.; Boldura,O.M.; Hulea,C.I.; Dumitrescu,E.; Radulov,I.; Muselin,F.
Due to its various structures in bio-compounds, snake venom is the indisputable result of evolutionary stages of molecules with an increasingly complex structure, high specificity, and of great importance for medicine because of their potential. The present study proposed an underpinning examination of venom composition from nine species of venomous snakes using a useful and replicable methodology. The objective was the extension of the evaluation of protein fractions in the field up to 230 kDa to permit possible identification of some fractions that are insufficiently studied. The gel capillary electrophoresis method on the chip was performed using an Agilent 2100 bioassay with the 80 and 230-LabChip Protein kits. Interpretation of electrophoresis was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bio-compounds; Protein LabChip; Venomics; Vipera aspis; V. xantina palestinae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100610

Chronic aerobic exercise associated to low-dose L-NAME improves contractility without changing calcium handling in rat cardiomyocytes
Provedor de dados: 56
Autores: Luchi,T.C.; Coelho,P.M.; Cordeiro,J.P.; Assis,A.L.E.M.; Nogueira,B.V.; Marques,V.B.; dos Santos,L.; Lima-Leopoldo,A.P.; Lunz,W.; Leopoldo,A.S.
Nitric oxide (NO) inhibition by high-dose NG-nitro-L-arginine methyl ester (L-NAME) is associated with several detrimental effects on the cardiovascular system. However, low-dose L-NAME increases NO synthesis, which in turn induces physiological cardiovascular benefits, probably by activating a protective negative feedback mechanism. Aerobic exercise, likewise, improves several cardiovascular functions in healthy hearts, but its effects are not known when chronically associated with low-dose L-NAME. Thus, we tested whether the association between low-dose L-NAME administration and chronic aerobic exercise promotes beneficial effects to the cardiovascular system, evaluating the cardiac remodeling process. Male Wistar rats were randomly assigned to control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitric oxide; Aerobic exercise; Cardiac remodeling; Cardiomyocyte; Calcium.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300611

Acute effect of passive cycle-ergometry and functional electrical stimulation on nitrosative stress and inflammatory cytokines in mechanically ventilated critically ill patients: a randomized controlled trial
Provedor de dados: 56
Autores: França,E.E.T.; Gomes,J.P.V.; De Lira,J.M.B.; Amaral,T.C.N.; Vilaça,A.F.; Paiva Júnior,M.D.S.; Elihimas Júnior,U.F.; Correia Júnior,M.A.V.; Forgiarini Júnior,L.A.; Costa,M.J.C.; Andrade,M.A.; Ribeiro,L.C.; De Castro,C.M.M.B.
Early mobilization is beneficial for critically ill patients because it reduces muscle weakness acquired in intensive care units. The objective of this study was to assess the effect of functional electrical stimulation (FES) and passive cycle ergometry (PCE) on the nitrous stress and inflammatory cytometry in critically ill patients. This was a controlled, randomized, open clinical trial carried out in a 16-bed intensive care unit. The patients were randomized into four groups: Control group (n=10), did not undergo any therapeutic intervention during the study; PCE group (n=9), lower-limb PCE for 30 cycles/min for 20 min; FES group (n=9), electrical stimulation of quadriceps muscle for 20 min; and FES with PCE group (n=7), patients underwent PCE and FES,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytokines; Nitrosative stress; Intensive care unit; Physiotherapy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400605

High frequency of Y chromosome microdeletions in male infertility patients with 45,X/46,XY mosaicism
Provedor de dados: 56
Autores: Li,Leilei; Zhang,Han; Yang,Yi; Zhang,Hongguo; Wang,Ruixue; Jiang,Yuting; Liu,Ruizhi.
The mosaic 45,X/46,XY karyotype is a common sex chromosomal abnormality in infertile men. Males with this mosaic karyotype can benefit from assisted reproductive therapies, but the transmitted abnormalities contain 45,X aneuploidy as well as Y chromosome microdeletions. The aim of this study was to investigate the clinical and genetic characteristics of infertile men diagnosed with 45,X/46,XY mosaicism in China. Of the 734 infertile men found to carry chromosomal abnormalities, 14 patients were carriers of 45,X/46,XY mosaicism or its variants, giving a prevalence of 0.27% (14/5269) and accounting for 1.91% (14/734) of patients with a chromosomal abnormality. There were ten cases (71.43%, 10/14) of 45,X mosaicism exhibiting AZF microdeletions. Case 1 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 45; X/46; XY mosaicism Y chromosome microdeletions Male infertility Azoospermia Oligozoospermia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300605

miR-22 and cerebral microbleeds in brainstem and deep area are associated with depression one month after ischemic stroke
Provedor de dados: 56
Autores: Hu,Jia; Zhou,Wei; Zhou,Zhiming; Yang,Qian; Xu,Junfeng; Dong,Wanli.
In this study, we aimed to explore the relationship among miR-22, deep cerebral microbleeds (CMBs), and post-stroke depression (PSD) 1 month after ischemic stroke. We consecutively recruited 257 patients with first-ever and recurrent acute cerebral infarction and performed PSD diagnosis in accordance with the Diagnostic and Statistical Manual IV criteria for depression. Clinical information, assessments of stroke severity, and imaging data were recorded on admission. We further detected plasma miR-22 using quantitative PCR and analyzed the relationship among miR-22, clinical data, and PSD using SPSS 23.0 software. Logistic regression showed that deep (OR=1.845, 95%CI: 1.006-3.386, P=0.047) and brain stem CMBs (OR=2.652, 95%CI: 1.110–6.921, P=0.040), as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Depression; MicroRNA; Stroke; Cerebral microbleeds; Magnetic resonance imaging.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500611

Phytochemical and morpho-anatomical study of the vegetative organs of Psychotria fractistipula L.B.Sm., R.M. Klein &amp;amp; Delprete (Rubiaceae)
Provedor de dados: 60
Autores: Oliveira,Camila Freitas de; Oliveira,Vinicius Bednarczuk; Bobek,Vanessa Barbosa; Rech,Katlin Suellen; Betim,Fernando Cesar Martins; Dias,Josiane de Fatima Gaspari; Zanin,Sandra Maria Warumby; Miguel,Obdulio Gomes; Miguel,Marilis Dallarmi.
Psychotria fractistipula L.B.Sm, R.M. Klein &amp; Delprete (Rubiaceae) is found in the existing Atlantic Forest in the South of Brazil, in the Paraná and Santa Catarina States. The members of Rubiaceae are characterized chemically by the presence of alkaloids, some pharmacological properties of which include antifungal, antibacterial, analgesic, antioxidant, antimutagenic, and antiviral activities. In this study, we report the results of anatomical, morphological, and histochemical analyses of the leaves and stems of the Rubiaceae family member, P. fractistipula. The anatomical analysis involved of light microscopy and scanning electron microscopy. Morpho-anatomical and histochemical characterization were made using standard methodology. The isolated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psychotria; Morpho-anatomical; Phytochemistry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100565

Quantitative analysis of phenobarbital in biological fluids: Analyte enrichment by an electrically-assisted microextraction technique
Provedor de dados: 60
Autores: Yaripour,Saeid; Ebrahimi,Shahriar; Mohammadi,Ali.
An electrically-assisted microextraction method called electromembrane extraction, followed by a simple high performance liquid chromatography and ultraviolet detection was developed and validated for determining phenobarbital in biological samples. The major parameters influencing the electromembrane extraction procedure including solvent composition, voltage, pH of acceptor and donor solutions, salt effect, and time of extraction were evaluated and optimized. The drug was extracted from the donor aqueous sample solution (pH 9) to the acceptor aqueous solution (pH 13). The donor and acceptor phases were separated by a hollow fiber dipped in 1-octanol as a supported liquid membrane. A voltage of 40 V during 20 minutes was applied as the driving force. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological samples; Electromembrane extraction; HPLC-UV; Microextraction; Phenobarbital.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100543

Radiolabeling of cidofovir with technetium-99m and biodistribution studies
Provedor de dados: 60
Autores: Arribada,Raquel Gregorio; Pereira,Nara Caroline; Cardoso,Valbert Nascimento; Cunha Júnior,Armando da Silva; Barros,André Luís Branco de.
Radiolabeling cidofovir with technetium-99m (99mTc-CDV) is an innovative procedure that enables real-time monitoring of the drug. Essays were performed in vitro, showing high radiolabel stability within 24 h. Blood clearance, biodistribution studies, and scintigraphic images were performed in healthy mice in order to evaluate the profile of the drug in vivo. 99mTc-CDV showed biphasic blood circulation time and significant kidney uptake, indicating that 99mTc-CDV is preferentially eliminated by the renal route. Bones also showed important uptake throughout the experiment. In summary, cidofovir was successfully labeled with technetium-99m and might be used in further studies to track the drug.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cidofovir; Radiotracer; Technetium-99m; Biodistribution; Scintigraphic imaging.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100570

The improvement of anti-HER2 scFv soluble expression in Escherichia coli
Provedor de dados: 60
Autores: Farshdari,Farzaneh; Ahmadzadeh,Maryam; Nematollahi,Leila; Mohit,Elham.
The relationship between the expression of HER2 and malignity of breast tumors has led to the generation of antibodies targeting HER2+ tumors. In addition, the expression of scFvs, as the smallest antigen-binding region of antibody containing two disulfide bonds in Escherichia coli often results in accumulating non-functional protein in the cytoplasm. A redox-modified strain of E. coli such as Origami (DE3) may facilitate the formation of proper disulfide bond in cytoplasm. The present study aimed to optimize the expression of anti-HER2 scFv in Origami and evaluate the influence of induction temperature, and host strain on the solubility of the protein. To this aim, chemicallysynthesized anti-HER2 scFv of Trastuzumab was cloned in pET-22b (+). The results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breast cancer; HER2; ScFv; Expression; Solubility.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100519

Preparation and characterization of a novel antimicrobial film dressing for wound healing application
Provedor de dados: 60
Autores: Gonçalves,Melissa Marques; Carneiro,Jaqueline; Justus,Barbara; Espinoza,Joel Toribio; Budel,Jane Manfron; Farago,Paulo Vitor; Paula,Josiane Padilha de.
Antibacterial activity and good mechanical properties are some of the characteristics required for an appropriate film dressing. A novel polymer blend was developed for wound healing application. Twenty-four formulations using the polymers chitosan, poly(vinyl alcohol) and/or ɛ-Polylysine and the plasticizer glycerol were designed using factorial design and then the films were prepared by the casting/solvent evaporation method. Seventeen films were obtained among the twenty-four proposed formulations that were characterized by Field Emission Scanning Electron Microscopy (FE-SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Mechanical properties, such as tensile strength (σ), elongation at break (ɛ) and Young’s modulus (Y) as well as antibacterial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitosan; Poly(vinyl alcohol); Ɛ-Polylysine; Semi-occlusive dressing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100631

Efficacy of secnidazole-diminazene aceturate combination therapy in the late treatment of Trypanosoma brucei brucei infection in dogs
Provedor de dados: 60
Autores: Eke,Ifeanyi Gabriel; Ezeh,Ikenna Onyema; Ezeudu,Terry Adaeze; Eze,Ukamaka Uchenna; Anaga,Aruh Ottah; Onyeyili,Patrick Azubuike.
This study evaluated the efficacy of combination therapy of secnidazole-diminazene aceturate (SEC-DA) in late treatment of dogs experimentally infected with relapsing strain of Trypanosoma brucei brucei. Fifteen dogs were randomly assigned to 5 groups (A - E) of 3 per group. Group A (uninfected untreated), B (infected untreated), C (infected and treated with DA (3.5 mg/kg) IM stat), D (infected and treated with secnidazole (SEC) (100 mg/kg) orally for 5 days and DA (3.5 mg/kg) IM stat), E (infected and treated with SEC (200 mg/kg) orally for 5 days and DA (3.5 mg/kg) IM stat). Dogs were infected intraperitoneally with 5 x 105 trypanosomes and treatment started 14 days post-infection. Data on parasitaemia, hematology and rectal temperature were recorded....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Secnidazole; Diminazene aceturate; Combination therapy; Trypanosomosis; Dogs; Relapse.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100521

In vivo analgesic and anti-inflammatory effects of the essential oil from Tanacetum balsamita L.
Provedor de dados: 60
Autores: Sharif,Maryam; Najafizadeh,Parvaneh; Asgarpanah,Jinous; Mousavi,Zahra.
Tanacetum balsamita locally called Shahesparam is an aromatic plant that grows widely in Azerbaijan Province, Iran. Due to the widespread use of T. balsamita as a pain killer and relief of inflammatory based disorders in Iranian folk medicine and considering the high content of essential oil in T. balsamita aerial parts, we were prompted to investigate the anti-nociceptive and anti-inflammatory properties of T. balsamita essential oil (TBEO) for the first time. The carrageenan-induced Paw Edema was used for inflammation evaluation in rat, and hot-plate method was used for pain assessment in mice. Different doses of TBEO were administered. Morphine and Mefenamic acid were used as the standard drugs in anti-nociceptive and anti-inflammatory evaluation tests,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tanacetum balsamita; Essential oil; Analgesic; Antiinflammatory.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100556

Preparation and in vitro characterization of monoclonal antibody ranibizumab conjugated magnetic nanoparticles for ocular drug delivery
Provedor de dados: 60
Autores: Ayata,Neşe; Sezer,Ali Demir; Bucak,Seyda; Turanlı,Eda Tahir.
Gold coated magnetite nanoparticles were prepared and coated with ranibizumab as an ocular drug delivery system. The surface morphologies of the nanoparticles were determined by Scanning Electron Microscopy (SEM). The size and surface charge were determined by using the dynamic light scattering (DLS) technique. Crystallographic properties of the gold coated Fe3O4 nanoparticles were recorded on X-ray diffractometer (XRD) the XRD pattern of nanoparticlees were shown to have uniqe Fe3O4 and gold peaks. Conjugation of ranibizumab onto nanoparticles was achieved using the physical adsorption method. The amount of ranibizumab on the surface of the nanoparticles was determined by thermogravimetric analysis (TGA). In the in vitro release studies performed using UV...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ranibizumab; Monoclonal antibody; Drug delivery; Magnetic nanoparticles; Cell culture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100587

Controlled release alginate-chitosan microspheres of tolmetin sodium prepared by internal gelation technique and characterized by response surface modeling
Provedor de dados: 60
Autores: Elsayed,Mahmoud M. A.
Tolmetin sodium (TS) is a powerful non-steroidal mitigating drug for the treatment of rheumatoid joint inflammation, osteoarthritis, and adolescent rheumatoid joint pain. In addition to its gastrointestinal (GIT) problems, TS has a short biological half-life (1 hr). In a trial to overcome these side effects and control the rate of (TS) release, chitosan coated alginate microspheres are recommended. A Box-Behnken experimental design was employed to produce controlled release microspheres of TS in the sodium alginate and chitosan copolymers (Alg-Ch) by emulsification internal gelation methodology. The effect of critical formulation variables namely, drug to polymer ratio (D:P ratio), speed of rotation and span 80% on drug encapsulation efficiency (% EE),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tolmetin Sodium; Controlled Release; Alginate; Chitosan; Response Surface.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100604

Lupine as a potential agent against diet-induced obesity through adenosine monophosphate-activated protein kinase pathway: crude oil versus nanoemulsion formulations
Provedor de dados: 60
Autores: Mohafez,Omar Mahmoud; Alhaider,Ibrahim Abdelrahman; Shehata,Tamer Mohamed; Mohamed,Maged Elsayed.
Obesity represents a major challenge to the pharmaceutical community due to the minimal availability of anti-obesity drugs and the drawbacks of current weight-loss agents. The study described herein presents lupine oil, in two pharmaceutical formulations, as a potential anti-obesity agent via its effect on different physiological, biochemical, and hormonal parameters. Rats were divided into two groups; one group was continued on a standard commercial rodent diet and served as the non-obese control. The other group was fed a high-fat diet for 7 weeks to prepare an obese rat model. Then, the obese rats were divided into groups to receive 100 mg/kg of the crude lupine oil or nanoemulsion for 10 or 20 days. Lupine oil showed a potent body weight-reducing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adiponectin; Cholesterol; HDL; Leptin; Lupinus albus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100561

Formulation, optimization, and characterization of snakehead fish (Ophiocephalus Striatus) powder nanoemulgel
Provedor de dados: 60
Autores: Tungadi,Robert; Wicita,Prisca.
The aim of the present study was to characterize and evaluate nanoemulgel of snakehead fish powder (SFP) for the poorly water-soluble drug. SFP was formulated into nanoemulsion utilizing the best comparison of surfactant, co-surfactant, and oil. Diverse nanoemulsion components (oil, surfactant, and co-surfactant) were chosen based on solvency and emulsification capacity. SFP 0.1% loaded nanoemulsion which tested by stress-stability testing which carried out for all formulations and those that passed these tests were characterized for droplet size, polydispersity index (PDI), zeta potential, pH, viscosity, and transmittance. After that, nanoemulsion was added with 1.5%, 2.0%, and 2.5% of HPMC in different concentrations and mixed until nanoemulgel form and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nanoemulgel; Nanoemulsion; Powder; Particle size analyzer; Snakehead fish.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100503

Donepezil: A review of the recent structural modifications and their impact on anti-Alzheimer activity
Provedor de dados: 60
Autores: Mohsin,Noor ul Amin; Ahmad,Matloob.
Alzheimer disease (AD) is characterized by a low level of acetylcholine, beta-amyloid (Aβ) aggregation and oxidative stress. Donepezil is the core medicine used for the treatment of AD. Various structural modifications of donepezil have been carried out. Benzylpiperidine part of donepezil has been replaced with benzylpyridine, pyridyl methylpiperidine, benzylpiperazine, pyrimidyl piperazine. These derived molecules showed promising activities as anti-Alzheimer agents. Replacement of indanone part by other heterocyclic rings such as pyridine resulted in the formation of compounds which exhibited monoamine oxidase (MAO) as well as acetylcholinesterase (AChE) inhibition. Propargylamine containing derivatives displayed AChE as well as MAO inhibition...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetylcholinesterase (AChE); Butyrylcholinesterase (BuChE); Benzylpiperidine; Indanone; Hybrid compounds.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100702

Optimization of cosmetic formulations development using Box-Behnken design with response surface methodology: physical, sensory and moisturizing properties
Provedor de dados: 60
Autores: Mercurio,Daiane Garcia; Calixto,Lívia Salomão; Campos,Patrícia Maria Berardo Gonçalves Maia.
Considering the importance of an adequate composition of the formulation in the development of stable, safe and effective cosmetic products, experimental design techniques are tools that can optimize the formulation development process. The objective of this study was to develop topical formulations using the Box-Behnken design with response surface methodology and evaluate its physical, sensory and moisturizing properties. The experimental design used in the first step allowed to identify and to quantify the influence of raw materials, as well as the interaction between them. In the second step, the analysis identified the influence of soy lecithin, the phytantriol and capric acid triglyceride and caprylic on the consistency index, stickiness and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emulsions; Formulation; Stability; Skin barrier; Experimental design.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100624

Targeting of temozolomide using magnetic nanobeads: an in vitro study
Provedor de dados: 60
Autores: Gürten,Berna; Yenigül,Elçin; Sezer,Ali Demir; Altan,Cem; Malta,Seyda.
Temozolomide, a chemotherapeutic drug that is often administered for the treatment of brain cancer has severe side effects and a poor aqueous solubility. In order to decrease the detrimental effect of the drug over healthy cells, a novel drug delivery vehicle was developed where the therapeutic drug was encapsulated within the hydrophobic cavities of b-CD modified magnetite nanoparticles, which are embedded in chitosan nanobeads prepared by salt addition. In-vitro studies have shown that the magnetic properties of the novel delivery vehicle are adequate for targeted drug delivery applications under an external magnetic field. Additionally, an increase in the amount of chitosan was shown to exhibit a strong shielding effect over the magnetic properties of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Temozolomide; Magnetite; Cyclodextrin; Chitosan; Targeting; Anticancer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100574

Evaluation of the stability of Polymyxin B in saline and glucose solutions using LC-MS/MS
Provedor de dados: 60
Autores: Castilhos,Juliana Kich; Dillenburg,Thaís Luise; Antunes,Marina Venzon; Scribel,Letícia; Zavascki,Alexandre Prehn; Linden,Rafael; Verza,Simone Gasparin.
Polymyxins are a group of antibacterial substances and have remained the drugs of choice for treatment of resistant Gram-negative bacilli. Polymyxin B is administered by intravenous infusion and requires the reconstitution of lyophilized powder with 0.9% saline or 5% glucose solutions. To date, there is little information about polymyxin stability in different infusions solutions, especially at 40 ºC, a temperature that is recommended to study drug stability as it accelerates degradation reactions. Therefore, in this work an analytical method using LC-MS/MS was developed, validated and applied to determine the stability of polymyxin B diluted in 0.9% saline or 5% glucose solutions at 25 ºC and 40 ºC. The stability of polymyxin B solutions was evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polymyxin; Stability; LC-MS/MS; Glucose solutions; Saline solutions.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100537

Evaluation of antiarthritic activity of ginkgolic acid against Freund’s adjuvant induced arthritic rat model
Provedor de dados: 60
Autores: Zhang,Ziqiang; Wang,Xiaogang; Li,Pengshan; Bai,Minghua; Qi,Wenbing.
This study aimed to analyze the antiarthritic activity of ginkgolic acid against the Complete Freund’s Adjuvant (CFA)-induced arthritis in rats. Arthritis was induced through an intradermal injection of CFA (0.1 mL) at the right hind footpad of adult Wistar Albino rats. Ginkgolic acid was administered orally at doses of 25 mg/kg and 50 mg/kg, respectively, once daily via gavage for 25 days upon inducing arthritis. Indomethacin was administered orally at a dose of 3 mg/kg twice in a week which served as positive control group. The animals were sacrificed and subjected to biochemical and histopathological analysis upon completion of treatment. Ginkgolic acid was able to reverse the arthritic effect (p &lt; 0.01) induced by CFA in a dose dependent manner....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ginkgolic acid; Complete Freund’s Adjuvant (CFA); Osteoarthritis; Antioxidant; Anti-inflammatory; Histopathology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100617

Application of redox reactions for the determination of valganciclovir hydrochloride in pharmaceuticals
Provedor de dados: 60
Autores: Qarah,Nagib Abdullah Salem; Basavaiah,Kanakapura; Abdulrahman,Sameer Abdulaziz Mohammed.
Two simple, selective and sensitive spectrophotometric methods were developed and validated for the determination of valganciclovir hydrochloride (VLGH) in pure drug and tablets. The first method was based on the reduction of iron(III) to iron(II) by VLGH and subsequent formation of iron(III)-ferricyanide complex (Prussian blue) in acid medium which was measured at 730 nm (method A). In the second method (method B), permanganate was reduced by VLGH to bluish green manganate in alkaline medium and the absorbance was measured at 610 nm. The absorbance measured in each case was related to VLGH concentration. The experimental conditions were carefully studied and optimized. Beer’s law was obeyed over the concentration ranges of 2.5-20.0 and 2.0-40.0 µg mL-1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Valganciclovir hydrochloride/determination; Spectrophotometry/method validation; Pharmaceutical formulations.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100516

Development, in vitro biocompatibility, and antitumor efficacy of acetic acid-modified Cordyceps sinensis polysaccharide nanoparticle drug delivery system
Provedor de dados: 60
Autores: Guan,Jiao; Han,Liqin; Shi,Nianqiu; Zhu,Heyun; Wang,Junmin.
Docetaxel-loaded acetic acid conjugated Cordyceps sinensis polysaccharide (DTX-AA-CSP) nanoparticles were prepared through dialysis and their release rates in vitro, particle sizes, zeta potentials, drug loading capacities, and encapsulation efficiencies were characterized for the synthesis of AA-modified CSPs from traditional Chinese medicine Cordyceps sinensis (Berk.) Sacc. Then, the AA-modified CSPs were characterized by 1H-NMR and FT-IR. Furthermore, the biocompatibility of the delivery carrier (AA-CSP nanoparticles) was assessed on human umbilical vein endothelial cells. In vitro antitumor activity studies on DTX-AA-CSP nanoparticles were conducted on the human liver (HepG2) and colon cancer cells (SW480). The DTX-AA-CSP nanoparticles were spherical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Docetaxel; Cordyceps sinensis polysaccharide; Nanoparticles; Antitumor efficacy; Biocompatibility.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100599

Evaluation of the bioequivalence of two formulations containing the combination of 400 mg of acetaminophen (paracetamol), 4 mg of phenylephrine and 4 mg of chlorpheniramine in capsules: open-label, three-way crossover study, partially replicated in healthy volunteers of both sexes
Provedor de dados: 60
Autores: Santos,Alessandra Ferreira dos; Santos,Quevellin Alves dos; Correa,Carlos Eduardo Melo; Coelho,Edvaldo Capobiango.
This study was carried out in order to compare the relative bioavailability of two different formulations containing 400 mg of acetaminophen + 4 mg of phenylephrine hydrochloride + 4 mg of chlorpheniramine maleate, Test formulation (Cimegripe®) and Reference formulation (Resfenol®) in 84 healthy volunteers of both sexes under fasting conditions. The study was conducted in a single dose, randomized, open-label, crossover 3-way and partially replicated. The tolerability was evaluated by the monitoring of adverse events and vital signs, results of clinical and laboratory tests. Plasma concentrations were quantified by validated bioanalytical methods using the ultra-performance liquid chromatography coupled to tandem mass spectrometry. The Cmax, Tmax, AUC0-t,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetaminophen; Phenylephrine; Chlorpheniramine; Bioequivalence; Partially replicated crossover; Ultra-high performance liquid chromatography; Mass spectrometry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100564

Oleanolic acid from black raisins, Vitis vinifera with antioxidant and antiproliferative potentials on HCT 116 colon cancer cell line
Provedor de dados: 60
Autores: Sasikumar,Kandasamy; Dubey,Vinay; Ghosh,Asit Ranjan.
Vitis vinifera (black raisin) is commonly used in traditional medicine for the treatment of various ailments. In the present study, anti-oxidative and anti-cancer efficacy of oleanolic acid from ethyl acetate fraction of black raisins was evaluated and oleanolic acid was isolated without using of any chromatographic techniques and subjected to spectral assessment using UV-Vis spectrophotometer, 1H NMR, 13C NMR, MS and FT-IR for structural confirmation. Antiproliferative efficacy of oleanolic acid against human colon adenocarcinoma HCT-116 cells was assessed using cell viability assay. The minimum inhibitory concentration (IC50) was determined and found to be 40 µg/mL at 48h incubation. Furthermore, antioxidant property of oleanolic acid was analyzed using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera; Oleanolic acid; Anti-oxidant; Anti-proliferative.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100502

Paclitaxel and spirulina co-loaded polymeric nanoparticles: in-vitro and in-vivo anticancer study
Provedor de dados: 60
Autores: Ravikumar,Yamuna; Catherine,Dorcas Pinky; Nair,Keerthi G. S; Sekar,Akshya; Velmurugan,Ramaiyan.
Paclitaxel spirulina nanoparticles were said to have promising anticancer activity against gastric cancer. Nanoparticles of paclitaxel-spirulina were prepared for treating gastric cancer using precipitation technique. The synergistic anticancer efficiency againstMKN45 cells retains when the paclitaxel and spirulina were encapsulated into nanoparticles. To increase the site specific delivery, intra-tumoral administration was carried in the in vivo evaluation. There was an increase in overall survival in an MKN45-transplanted mice model and notable improvement in anti-tumour efficacy when paclitaxel-spirulina nanoparticles were delivered through intra-tumoral administration. The further investigation of overall anticancer mechanism of these nanoparticles is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paclitaxel; Spirulina; Nanoparticle; In-vitro; In-vivo; Gastric cancer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100642

Screening of Ketoprofen-Poloxamer and Ketoprofen-Eudragit solid dispersions for improved physicochemical characteristics and dissolution profile
Provedor de dados: 60
Autores: Savardekar,Ravi Yashwant; Sherikar,Amol Shantinath.
The aim of the present study was to enhance the dissolution rate of an NSAID drug Ketoprofen by formulating it into solid dispersions with water soluble carrier Poloxamer 188 and Eudragit S 100. The solid dispersions of Ketoprofen with Poloxamer 188 were prepared at 1:1, 1:1.5 and 1:2 (Ketoprofen: Poloxamer 188) ratio by Solvent evaporation methods. The same concentration ratio was used for the preparation of solid dispersion with Eudragit S 100 by melting/fusion technique. Further, solid dispersions were investigated by solubility, ATR-FTIR, XRD, DSC, surface morphology, in-vitro dissolution and accelerated stability study. Results demonstrated that both Poloxamer 188 and Eudragit S 100 improve solubility of drugs by 8–10 folds. The result of ATR-FTIR...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ketoprofen; Solid Dispersion; Poloxamer 188; Eudragit S 100; Accelerated stability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100579

Stability-indicating HPLC-DAD method for the simultaneous determination of fluoroquinolone in combination with a non-steroidal anti-inflammatory drug in pharmaceutical formulation
Provedor de dados: 60
Autores: Araujo,Elaine de Oliveira; Rosa,Aline Marques; Amaral,Marcos Serrou do; Sversut,Rúbia Adrieli; Baroni,Adriano César de Morais; Oliveira,Lincoln Carlos Silva de; Kassab,Nájla Mohamad.
We developed and validated a stability-indicating assay method for the simultaneous determination of enrofloxacin and piroxicam in combination and in the presence of degradation products. Reverse-phase high-performance liquid chromatography analyses were carried out on a Vertisep C18 column and acetonitrile-water (48:52 v/v, pH 3.0) mobile phase with a 1.00 mL min−1 flow rate. The efficient chromatographic separation of these drugs and their forced degradation products was achieved in less than 5min with a peak purity match factor higher than 950. The method used showed linearity in the concentration ranges of 0.25 to 16.0 µg mL−1 for enrofloxacin (r = 0.9997) and 0.125 to 8.0 µg mL−1 for piroxicam (r = 0.9999) as well as precision (relative standard...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enrofloxacin; HPLC; Piroxicam; Simultaneous determination; Stability-indicating method.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100515

Nephroprotective activity of the enriched polyphenol extract of Euterpe edulis Martius
Provedor de dados: 60
Autores: Cardoso,Priscylla Maria Martins; Mazuco,Renata Alves; Macedo,Lucas Soares Dazzi; Polese,Ariele Abreu Venturini; Barroso,Maria Eduarda de Souza; Baratella,Waléria Gramilich; Andrade,Tadeu Uggere de; Lenz,Dominik; Pereira,Thiago de Melo Costa; Endringer,Denise Coutinho.
Contrast-induced nephropathy (NIC) is directly related to increased morbidity and mortality, and its treatment and prevention might be achieved by the administration of antioxidant products. The juçara palmetto (Euterpe edulis Martius) has fruits rich in phenolic compounds, which are known for their antioxidant activity. This work aimed to evaluate the nephroprotective activity of E. edulis pulp in the NIC animal model. The collected fruits were pulped, their contents of polyphenols and anthocyanins were quantified, and their antioxidant activity were evaluated. The nephroprotective effects were determined based on iodine contrast induction and evaluated by biochemical and histological analyses. The results showed that E. edulis pulp was rich in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nephroprotection; Euterpe edulis Martius; Polyphenols; Anthocyanins; Antioxidant activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100522

Evaluation of Lead and Copper content in hair of workers from oil product distribution companies in Iraq
Provedor de dados: 60
Autores: Jaccob,Ausama Ayob.
Serious health consequences can occur not only from acute exposure to environmental toxicants, but also from chronic exposures to minute quantities. Petroleum substances are widely distributed and used in huge amount, mainly as fuels. A total number of 45 males aged between 20 and 45 years participated in this study. The participants were divided in to two groups: The first group of 25 subjects worked at least 8hours/day in different oil product distribution companies in both Basrah and Thiqar Governorates-Iraq. The second group (control group) of 20 healthy individuals with age and weight matched with the test group and lived far away from hazardous exposure. Heavy metals levels in hair were measured by Atomic Absorption Spectrophotometer. Statistical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fuel; Heavy metals/effects; Hair; Pollutions.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100523

Presence of benznidazole conjugated metabolites in urine identified by β-glucuronidase treatment
Provedor de dados: 60
Autores: Marson,María Elena; Bournissen,Facundo García; Altcheh,Jaime; Moscatelli,Guillermo; Moroni,Samantha; Mastrantonio,Guido Enrique.
Chagas disease is a serious public health problem in Latin America and, due to migration, in other non-endemic regions. Benznidazole (BNZ) is first choice drug in pediatric therapeutics. However, little is known regarding its metabolism in humans. The aim of the study was to isolate and identify products of human BZN metabolism in urine samples obtained from a pediatric Chagas patient and a healthy adult volunteer both treated with BZN. Urine samples were collected after dose of BNZ. Urine was treated with β-glucuronidase followed by an extraction procedure under two different pH conditions and a HPLC/UV and MS/MS identification of BZN and its metabolites. BZN (m/z 260.09847) was identified in all urine extracts. Peaks from each extracted chromatograms...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benznidazole metabolites; Chagas Disease/drug therapy; Glucuronidase/urine; High Performance Liquid Chromatography HPLC/methods; Mass Spectrometry/ methods; Antiparasitic agents/pharmacology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100520

Renal protective effects of vicenin-2 and scolymoside in a mouse model of sepsis
Provedor de dados: 60
Autores: Lee,Bong-Seon; Yang,Sumin; Lee,Changhun; Ku,Sae-Kwang; Bae,Jong-Sup.
This study was initiated to determine whether 2 structurally related flavonoids found in Cyclopia subternata-vicenin-2 (VCN) and scolymoside (SCL)-could modulate renal functional damage in a mouse model of sepsis, and to elucidate the relevant underlying mechanisms. The potential of VCN and SCL treatment to reduce renal damage induced by cecal ligation and puncture (CLP) surgery in mice was measured via assessment of serum creatinine, blood urea nitrogen (BUN), lipid peroxidation, total glutathione, glutathione peroxidase activity, catalase activity, and superoxide dismutase activity. Treatment with either VCN or SCL resulted in elevated plasma levels of BUN and creatinine, and of protein in the urine of mice with CLP-induced renal damage. Moreover, both...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vicenin-2; Scolymoside; Sepsis; Antioxidant; Renal injury; Renal toxicity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100578

Polymeric emulgel carrying Cinnamomum tamala extract: promising delivery system for potential topical applications
Provedor de dados: 60
Autores: Arshad,Wajeeha; Khan,Haji Muhammad Shoaib; Akhtar,Naveed; Mohammad,Imran Shair.
Currently, the use of natural compounds obtained from plants tremendously increased due to their promising therapeutic properties. The aim of this study was to formulate a stable emulgel formulation loaded with Cinnamomum tamala (CT) extract. The antioxidant activity of plant extract was determined by DPPH inhibition assay. The extract was successfully loaded into an emulgels using different concentrations of carbopol-940, liquid paraffin, emulsifying agents and preservatives. Preliminary stability study was performed of 17 CT emulgel formulations at accelerated temperature of 50 °C for 2-months. Organoleptic evaluation, centrifugation, globule size, pH, electrical conductivity and rheological studies were performed for a period of 90-days at different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cinnamomum tomala; Antioxidants; Emulgel; Physicak stability; Non-Newtonian; Pseudo-plasticity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100553

Niosomes and liposomes as promising carriers for dermal delivery of Annona squamosa extract
Provedor de dados: 60
Autores: Mohamad,Ebtesam Abdelghany; Fahmy,Heba Mohamed.
The leaf extract of Annona squamosa L. has antibacterial, antidiabetic, antioxidant, and anticancerous activities. The present work aims to compare between liposomes and niosomes as carriers for A. squamosa extract to improve its transdermal bioavailability. Physical characterization for niosomes and liposomes was performed using: transmission electron microscope (TEM), scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR). In addition, the encapsulation efficiency for A. squamosa in both carriers was evaluated and in-vitro drug release experiments were performed. The results proved the potential of both carriers to penetrate the outer layer of the skin (stratum corneum) which is considered as a strong barrier against the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annona squamosa; Dermal delivery; Liposomes; Niosomes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100525

Passiflora mucronata leaves extracts obtained from different methodologies: a phytochemical study based on cytotoxic and apoptosis activities of triterpenes and phytosterols constituents
Provedor de dados: 60
Autores: Silva,Isabel Cristina Vieira da; Oliveira,Pollyana Felix de; Barbosa,Gleyce Moreno; Wessjohann,Ludger A.; Cardozo-Filho,Lucio; Holandino,Carla; Muzitano,Michelle Frazão; Leal,Ivana Correa Ramos.
Cancer is one of the most prevalent diseases worldwide and the natural products could be a source of bioactive compounds. Passiflora mucronata (PM) belongs to a very known vegetal genus, although, there are no studies about cytotoxic activity or isolated compounds. Different extracts from PM were obtained by liquid-liquid partition (P), Soxhlet (Sox) and supercritical fluid (SFE1-5) extraction techniques, being compared concerning their yields, chemical profile and cytotoxicity. The Sox extracts showed the highest yields (6.03%: hexane; 2.51%: dichloromethane) followed by SFE (from 4.34 to 1.63%) and partitions (1.06 and 2.26%). The hexane partition (HP) showed the best cytotoxic activity against K562 cell line (IC50 = 18.72 µg.mL-1). From HP, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apoptosis; Cytotoxic; Passiflora mucronata; Stigmasterol; Triterpenes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100510

Utilization profile of enoxaparin in hospitalized patients with Chronic Kidney Disease in southern Brazil
Provedor de dados: 60
Autores: Cirne,Carolina Araujo; Machado,Tatiane Araujo Castro.
Chronic Kidney Disease (CKD) patients usually require the use of anticoagulants for treatment or prevention of thromboembolic diseases. One such commonly used anticoagulant is enoxaparin. However, special attention is advised when using this drug for CKD patients because dosage adjustments may be needed. This prospective observational study was conducted in adult patients (&gt; 18 years) with CKD stages 3 to 5 who were followed-up daily via prescriptions, medical records and laboratory tests. Enoxaparin doses, renal function and adverse drug events (ADEs) were thus monitored. Of the 87 ADEs identified in this study, 56 (64.3%) occurred in patients requiring enoxaparin prescription adjustment. Out of the 9 patients who had severe ADEs, 8 (88.9%) needed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Low molecular weight heparin; Enoxaparin; Renal disease; Anticoagulation management; Therapeutic drug monitoring; Clinical pharmacists.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100533

Biological evaluation of 2,3-dioxoindolin-N-phenylacetamide derivatives as potent CDC25B and PTP1B phosphatase inhibitors
Provedor de dados: 60
Autores: Jin,Qing-Hao; Chen,Wen-Bo; Xia,Ya-Nan; Liu,Bing-Yu; Guan,Li-Ping.
A series of 2,3-dioxoindolin-N-phenylacetamide derivatives was evaluated for inhibitory activity against CDC25B and PTP1B enzymes. Most of the derivatives showed inhibitory activity against CDC25B (IC50 = 3.2-23.2 µg/mL) and PTP1B (IC50 = 2.9-21.4 µg/mL). Compound 2h showed the most inhibitory activity in vitro with IC50 values of 3.2 and 2.9 µg/mL against CDC25B and PTP1B, respectively, compared with the reference drugs Na3VO4 (IC50 = 2.7 µg/mL) and oleanolic acid (IC50 = 2.3 µg/mL). The results of selectivity experiments showed that the 2,3-dioxoindolin-N-phenylacetamide derivatives were selective inhibitors against CDC25B and PTP1B. Enzyme kinetic experiments demonstrated that compound 2h was a specific inhibitor with the typical characteristics of a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dioxoindolin-N-phenylacetamide; CDC25B; PTP1B; Phosphatase inhibitors; Enzyme kinetics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100500

Enzymes modulation by dried grape pomace from the manufacture of wines and juices
Provedor de dados: 60
Autores: Freire,Juliana Mesquita; Barroso,Amanda Ribeiro; Assis,Amanda Araújo de; Texeira,Bruna Helena; Braga,Jonatas Henrique Guimarães; Oliveira,Daniela Aparecida; Braga,Mariana Aparecida; Marcussi,Silvana.
The processing of grapes for the manufacture of juices and wines, generates large quantities of by-products rich in metabolites with antioxidant, antimicrobial, anti-inflammatory and cicatrizing activities. The high homology between human enzymes and snake venoms makes the latter valuable laboratory tools for the study of pathophysiological processes. Proteases and phospholipases A2 act in processes related to hemostasis and inflammatory response. Thus, in this work, dried pomace obtained from grape (Isabel, Niagara, Bordô, BRS Violeta and Blend cultivars) processing were evaluated on phospholipase, proteolytic, hemolytic and thrombolytic activities induced by snakes venoms and the content of phenolic compounds and minerals was evaluated. The dried pomace...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Grape extracts; Industrial wastes; Phenolic compounds; Protease modulators; Phospholipase A2 modulators.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100609

Chemical composition, phytotoxic potential, biological activities and antioxidant properties of Myrcia hatschbachii D. Legrand essential oil
Provedor de dados: 60
Autores: Gatto,Larissa Junqueira; Fabri,Natasha Tiemi; Souza,Angela Maria de; Fonseca,Natasha Stopinski Triaquim da; Furusho,Alethéia dos Santos; Miguel,Obdulio Gomes; Dias,Josiane de Fatima Gaspari; Zanin,Sandra Maria Warumby; Miguel,Marilis Dallarmi.
Myrcia hatschbachii D. Legrand (Myrtaceae) is a native and endemic species from Brazil. This study investigated the essential oil composition, phytotoxic potential, in vitro toxicity, antioxidant properties and antibacterial activity of species. Chromatographic analysis of essential oil identified trans-calamanene, (E)-caryophyllene and spathulenol as major components. Antioxidant capacity was determined by the DPPH• scavenging method and phosphomolybdenum complex formation assay. Antibacterial activity was evaluated using the Minimal Inhibitory Concentration test, demonstrating that the essential oil was active toward Enterococcus faecalis and Staphylococcus aureus. Phytotoxic activity of essential oil was analyzed by testing interference on germination...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oil; Phytotoxic; Antioxidant; Antibacterial; Hemolysis; Artemia salina.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100560

Finasteride promotes worsening of the cardiac deleterious effects of nandrolone decanoate and protects against genotoxic and cytotoxic damage
Provedor de dados: 60
Autores: Mata,Elizângela Faustino Da; Nascimento,Andrews Marques do; Lima,Ewelyne Miranda de; Kalil,Ieda Carneiro; Endringer,Denise Coutinho; Lenz,Dominik; Bissoli,Nazaré Souza; Brasil,Girlandia Alexandre; Andrade,Tadeu Uggere de.
Metabolism of anabolic androgenic steroids is important for its physiological effects. The aim was to investigate the effects of finasteride (a 5α-reductase inhibitor - 5αR) on cardiac and mutagenic effects promoted by ND. Male Wistar rats were separated into three groups: CONT, received the vehicles of ND and finasteride (Peanut oil+Saline); DECA group, received ND (20 mg.kg.week-1, i.m.), and DECAF received ND and finasteride (100 µg.kg-1, i.p.), for four weeks. After, hypertrophy, cytokines and Angiotensin Converting Enzyme (ACE) activity was determined in heart. Bone marrow was used for micronucleus evaluation. Treatment with ND promotes increase in cardiac hypertrophy, ACE activity and disbalance among pro- and anti-inflammatory cytokines, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dehydronandrolone; Finasteride; Mutagenicity; Cardiac Hypertrophy; Anabolic Androgenic Steroids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100532

Essential oil from Euphorbia esula inhibits proliferation and induces apoptosis in HepG2 cells via mitochondrial dysfunction
Provedor de dados: 60
Autores: Lv,Dan; Pan,Li-hong; Zhang,Ren; Yang,Jie; Chen,Hao; Wen,Yanzhang; Huang,Mi; Ma,Xinhua; Wang,Qiang; Yang,Xinzhou.
Hepatocellular carcinoma is one of the most prevalent malignancies and a leading cause of cancer-related mortality worldwide. However, the therapies to prevent hepatocellular carcinoma are still limited and the emergence of drug resistance leads to the development of new anti-cancer drugs and combinational chemotherapy regimens. Our study was aimed to explore the anticancer effects of the essential oil extract (EEEO) from Euphorbia esula which has been widely used in traditional Chinese folk medicine and possessed potential cytotoxic effects in several human tumor cells. However, the mechanisms of EEEO-induced anti-proliferation and apoptosis have not been completely elucidated. In this study, EEEO was prepared by hydro-distillation and the main chemical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Euphorbia esula; Hepatocellular carcinoma; Apoptosis; Reactive oxygen species; Mitochondrial pathway.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100506

Economic model for obtaining cyclodextrins from commercial cgtase
Provedor de dados: 60
Autores: Koga,Luciana Numata; Fenelon,Vanderson Carvalho; Miyoshi,Juliana Harumi; Moriwaki,Cristiane; Wessel,Kamila Byanca Baldin; Mangolim,Camila Sampaio; Matioli,Graciette.
A repetitive batch process was employed followed by membrane ultrafiltration system to produce low-cost cyclodextrins (CDs) using commercial enzymes Toruzyme® cyclomaltodextrin glucanotransferase (CGTase) and its kinetic parameters were determined. The ultrafiltration system enabled the removalof inhibitory products from the reaction medium, allowing the enzyme to be recovered for reuse. A 10 kDa membrane was used to separate the different CDs produced by the CGTase. The substrates evaluated were maltodextrin, corn starch and cassava starch at 5, 10 and 15% (w/V), in the presence and absence of 10% (V/V) ethanol. After reaction for 132 h, 10% (w/V) cassava starch in the presence of ethanol provided the best results with 32.1 mg/mL of β-CD. Maximum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyclodextrin; Commercial CGTase; Ultrafiltration; Repetitive batches; Starch.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100641

Determination of phenolic and triterpenic compounds in Jatropha gossypiifolia L by Ultra-high performance liquid chromatography-tandem mass spectrometric (UHPLC-MS/MS)
Provedor de dados: 60
Autores: Silveira,Rudinei da Silva; Leal,Gabriela Camera; Molin,Thais Ramos Dal; Faccin,Henrique; Gobo,Luciana Assis; Silveira,Géssica Domingos da; Souza,Mariana Tatsch da Silva; Lameira,Osmar Alves; Carvalho,Leandro Machado de; Viana,Carine.
This work describes the chemical characterization of extracts of Jatropha gossypiifolia (from Amazonia region) concerning the presence of phenolic and triterpenic compounds using Ultra High Perfomance Liquid chromatography coupled to Mass Spectrometry in Tandem (UHPLC-MS/MS) methods. The studied compounds belong to the most frequently found classes in medicinal plants (triterpenes, flavonoids, flavones, hydroxycinnamic acids, coumarins, catechins and stilbenes), which have been analyzed as chemical and bioactive markers in hydroethanolic and aqueous extracts. Several polyphenolic compounds identified herein are unprecedented in the scientific literature for this species. The chemical markers identified and quantified in the studied extracts of J....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha gossypiifolia L; UHPLC-MS/MS; Phenolic compounds; Triterpenic compounds.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100539

Quercetin modulates age-induced changes in the transcript levels of some apoptosis related genes in the skeletal muscles of male rats
Provedor de dados: 60
Autores: Alm-Eldeen,Abeer; Khamis,Abeer; Elfiky,Nabil; Ahmad,Randa.
Adverse changes occur gradually in the skeletal muscles with age via continuous exposure to oxidative stress. Quercetin, a member of the flavonoids family, possesses anti-oxidative and radical-scavenging activities. Therefore, this study investigated the role of quercetin to modulate age-induced changes in the transcript levels of some apoptosis-related genes in rat’s gastrocnemius muscles, up to 15 months-old. Half of the rats at each age (1, 5, 10 and 15 months old) were given a vehicle and the other half was given 200 mg/kg quercetin for 2 weeks, respectively. With the increase of age, vehicle groups showed hyalinization of the muscle fibers and a decrease of the catalase and an increase of the malondialdehyde levels. Down-regulation of Bcl2 gene and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quercetin Age; Bcl2 Bax NF-KB Apoptosis Caspace3 Catalase MDA Histopathology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100638

Neuroprotective and MAOB inhibitory effects of a series of caffeine-8-thioglycolic acid amides
Provedor de dados: 60
Autores: Kasabova-Angelova,Alexandra; Kondeva-Burdina,Magdalena; Mitkov,Javor; Georgieva,Maya; Tzankova,Virginia; Zlatkov,Alexander.
The effects of new derivatives of caffeine-8-thioglycolic acid (100 µM) on isolated rat brain synaptosomes, human neuroblastoma cell line SH-SY5Y and human recombinant MAOB enzyme (hMAOB) (1 µM) were evaluated. Most of the compounds, administered alone, didn’t show statistically significant neurotoxic effects on SH-SY5Y, when compared to the control (non-treated cells). Of all studied structures JTA-2Ox, JTA-11, JTA-12 and JTA-13 decreased cell viability. In combination with 6-hydroxydopamine (6-OHDA) (100 µM), only JTA-1 and JTA-2 revealed neuroprotective effects, stronger than those of caffeine. All compounds administered alone revealed, neurotoxic effects on synaptosomes, as compared to non-treated synaptosomes. JTA-1, JTA-2 and JTA-3 showed lowest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neuroprotection; Caffeine; Synaptosomes; SH-SY5Y; HMAOB.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100529

An in silico investigation of phytochemicals as potential inhibitors against non-structural protein 1 from dengue virus 4
Provedor de dados: 60
Autores: Qaddir,Iqra; Majeed,Arshia; Hussain,Waqar; Mahmood,Sajid; Rasool,Nouman.
Dengue fever has emerged as a big threat to human health since the last decade owing to high morbidity with considerable mortalities. The proposed study aims at the in silico investigation of the inhibitory action against DENV4-NS1 of phytochemicals from two local medicinal plants of Pakistan. Non-Structural Protein 1 of Dengue Virus 4 (DENV4-NS1) is known to be involved in the replication and maturation of viron in the host cells. A total of 129 phytochemicals (50 from Tanacetum parthenium and 79 from Silybum marianum) were selected for this study. The tertiary structure of DENV4-NS1 was predicted based on homology modelling using Modeller 9.18 and the structural stability was evaluated using molecular dynamics simulations. Absorption, distribution,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DENV4-NS1; Phytochemicals; Molecular Docking; Molecular Dynamics Simulations; Druglikeness.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100593

Experimental design approach for development of novel microemulsion system and immediate release self microemulsifying tablet of nebivolol HCl
Provedor de dados: 60
Autores: Trivedi,Hemangi Ramesh; Siriah,Tanvi Mukund; Puranik,Prashant Keshao.
The objective of this study was to determine specific combination of pharmaceutical excipients that lead to formulation of efficient nebivolol hydrochloride SMEDDS and its subsequent formulation into IR-SET (Immediate release- Self emulsifying tablet) which will enhance its solubility and dissolution. Solubility and Pseudo-ternary phase studies were carried out to identify the excipients showing highest solubility and to identify the zone of microemulsion with selected ingredients. Liquid-SMEDDS (L-SMEDDS) were optimized for Concentration of oil(X1) and Smix(X2) and formulated using a combination of Kollisolv GTA as oil, Tween 80 as surfactant and propylene glycol as co-surfactant which gave smaller droplet size(Y1) 55.98nm , Emulsification time (Y2)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nebivolol hydrochloride Liquid &amp;amp; Solid SMEDDS Full factorial design Neusilin US2 IR-SET.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100547

Characterization of bacterial endophytes from Myanmar medicinal plants for antimicrobial activity against human and plant pathogens
Provedor de dados: 60
Autores: Myo,Ei Mon; Maung,Chaw Ei Htwe; Mya,Khin Mar; Khai,Aye Aye.
This research aimed to investigate the antagonistic activity of the bacterial endophytes from Myanmar medicinal plants. Thirty-one bacterial isolates were isolated from Myanmar medicinal plants: Tinospora cordifolia (Wild.) Miers., Catharanthus roseus G. Don., Tectona hamiltoniana Wall. and Boscia variabilis Collett &amp; Hemsl. (Capparaceae). Dual culture and agar well diffusion methods were used for antimicrobial assay. One endophyte from Catharanthus roseus and two bacterial isolates from Boscia variabilis Collett &amp; Hemsl. (Capparaceae) had not only the antibacterial activity towards the human pathogenic bacteria but also the antifungal activity against the plant pathogenic fungi. From 16S rRNA sequencing, one strain from Catharanthus roseus G. Don....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibacterial; Antifungal; Culture conditions; Endophytes; Medicinal plants.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100513

Influence of isoniazid on T lymphocytes, cytokines, and macrophages in rats
Provedor de dados: 60
Autores: Cao,Bianchuan; Li,Qiuju; Huang,Zhe; Huang,Xiufang; Zhu,Yihong; Xiao,Ke; Huang,Fuli; Zhong,Li.
T lymphocytes, cytokines, and macrophages play important roles in the clearance of Mycobacterium tuberculosis (Mtb) by the immune system. This study aimed to investigate the effects of isoniazid on the functions of both innate and adaptive immune cells. Healthy rats were randomly divided into experimental and control groups. Each group was randomly divided into three subgroups and named according to the duration of drug feeding, 1, 3, and 3 months followed by drug withdrawal for 1 month. The experimental groups were fed with isoniazid (12 mg/mL) and the control groups with normal saline. The percentage of CD4+ and CD8+T lymphocytes, level of interleukin (IL)-12 and interferon (IFN)-γ, and function of macrophages were determined at these three time points....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytokines; Immune; Isoniazid; Macrophages; T lymphocytes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100573

Pharmacovigilance of thalidomide in the Brazilian Health System and patient safety
Provedor de dados: 60
Autores: Drummond,Paula Lana de Miranda; Santos,Roberta Márcia Marques dos; Silva,Cristine de Araújo; Pádua,Cristiane Aparecida Menezes de.
In Brazil, thalidomide is manufactured by a public laboratory, distributed by the Unified Health System (SUS), and regulated by the National Health Surveillance Agency (Anvisa). Despite the concerns regarding the adverse effects of thalidomide, few drug utilization studies have been conducted to describe processes and outcomes related to this drug. The aim of this study was to elucidate the issues related to the utilization and control of thalidomide, and patient safety within the scope of SUS. In this cross-sectional study, we evaluated the articulation between an outpatient dermatology service of a referral hospital in infectology, the manufacturer, and Anvisa. Four data sources were used: i) interviews with health professionals; ii) data from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thalidomide; Patient safety; Notification; Pharmacovigilance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100629

Synergistic effect of microRNA and albumin-bound nanoparticles for inhibition of glioblastoma cancer cell proliferation
Provedor de dados: 60
Autores: Shariatnasery,Maria; Irani,Shiva; Soleimani,Masoud; Goodarzi,Navid; Dinarvand,Rassoul.
The functional significance of upregulation miR-34a in combination with albumin-bound paclitaxel nanoparticles in U251 glioblastoma cell line has been evaluated. The MTT assay determined that miR-34a and albumin-bound paclitaxel nanoparticles can reduce cell viability, but the combination of both factors has a stronger effect on cell viability. The application of qRT-PCR has demonstrated that the transduction of miR-34a could lead to exogenous upregulation of miR-34a level and downregulation of SURVIVIN. Moreover, treatment of U251 cells with miR-34a and nanoparticles together considerably inhibit SURVIVIN expression compared to miR-34a and nanoparticles alone. Flow cytometry showed that upon miR-34a overexpression cell cycle arrested in G1 phase, while...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MiR-34a; Glioblastoma; Albumin; Paclitaxel; Nanoparticles; Combination therapy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100535

Influence of lipids and proteins amounts and pH values on the inhibitory effects of Origanum vulgare L. essential oil against Escherichia coli and Salmonella Typhimurium
Provedor de dados: 60
Autores: Medeiros,Andrea Sulamita de Jesus; Carvalho,Rhayane Idalyne; Conceição,Maria Lúcia da; Magnani,Marciane; Souza,Evandro Leite de.
Origanum vulgare L. (OVEO) essential oil has been considered a candidate antimicrobial for use in food conservation systems. However, studies on the influence of concomitant variations of different food components or physicochemical parameters on the antibacterial properties of OVEO are scarce. This study assessed the influence of concomitant variations in amounts of proteins - PTN (4.0, 6.0 or 8.0 g/100 mL) and lipids - LIP (3.75, 5.0 or 6.25 g/100 mL) and pH values (5.0, 5.5 or 6.0) in cultivation medium on the inhibitory effects of OVEO against Escherichia coli (EC) and Salmonella Typhimurium (ST). Lowest minimum inhibitory concentration values of OVEO against EC and ST were observed in media with the highest LIP amounts regardless the PTN amount and pH...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oregano; Antibacterial effects; Influential factors; Foodborne pathogens.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100622

Estimated glomerular filtration rate and drug dose adjustment in patients in an intensive care unit in Brazil
Provedor de dados: 60
Autores: Camargo,Marianne Silveira; Oliveira,Márcio Galvão; Mistro,Sostenes; Rocha,Izabel Cristina Pereira; Santos,Camila Neto; Castro,Caroline Tianeze de; Passos,Luiz Carlos Santana.
Objectives. This study sought to compare the estimated glomerular filtration rate and the indication of dose adjustment of antimicrobials when using Cockcroft-Gault or Modification of Diet in Renal Disease. Methods. A cross-sectional study was performed with patients admitted to the intensive care unit of a Brazilian general hospital. The glomerular filtration rate was calculated for patients on all days using the Cockcroft-Gault and Modification of Diet in Renal Disease equations. The difference in estimated glomerular filtration and the dose adjustment indication of antimicrobials were assessed. Results. A total of 631 patients were included in this study. The median estimated glomerular filtration was significantly higher when estimated using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intensive Care Units; Glomerular Filtration Rate; Anti-infective Agents; Renal Insufficiency.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100595

Chemical composition and in vitro antibacterial activity of essential oils from Murraya paniculata (L.) Jack (Rutaceae) ripe and unripe fruits against bacterial genera Mycobacterium and Streptococcus
Provedor de dados: 60
Autores: Silva,Flávia Fernanda Alves da; Fernandes,Cassia Cristina; Santiago,Mariana Brentini; Martins,Carlos Henrique Gomes; Vieira,Tatiana Manzini; Crotti,Antônio Eduardo Miller; Miranda,Mayker Lazaro Dantas.
This study aims to investigate chemical composition of essential oils from Murraya paniculata (L.) Jack (Rutaceae) ripe and unripe fruits and determine their in vitro antibacterial activity. Essential oils were extracted by hydrodistillation from Murraya paniculata (L.) Jack ripe and unripe fruits collected in the Cerrado, in Rio Verde, southwestern Goiás, Brazil. They were analyzed by gas chromatography with flame ionization detector (GC-FID) and by gas chromatography-mass spectrometry (GC-MS). Sesquiterpenes, which represent the most abundant class of compounds in oils, predominated in both ripe and unripe fruits. Major constituents of essential oils extracted from ripe fruits (RF-EO) were (-caryophyllene (21.3%), (-ylangene (13.3%), germacrene-D (10.9%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Murraya paniculata (L.) Jack; Rutaceae; Anti-streptococcal activity; Mycobacterium kansasii; Antibacterial agent; Antimycobacterial activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100592

Agrobacterium rhizogenes-mediated transformation of Hypericum sinaicum L. for the development of hairy roots containing hypericin
Provedor de dados: 60
Autores: Khlifa,Heba Desouky; Klimek-Chodacka,Magdalena; Baranski,Rafal; Combik,Michal; Taha,Hussein Sayed.
Hypericum sinaicum L. is an endangered Egyptian medicinal plant of high importance due to the presence of naphthodianthrones (hypericins), which have photodynamic properties and pharmaceutical potential. We sought to assess H. sinaicum ability to develop hairy roots that could be cultured in contained conditions in vitro and used as a source for hypericin production. We used four A. rhizogenes strains differing in their plasmids and chromosomal backgrounds to inoculate excised H. sinaicum root, stem and leaf explants to induce hairy root development. Additionally, inoculum was applied to shoots held in Rockwool cubes supporting their stand after removal of the root system. All explant types were susceptible to A. rhizogenes although stem explants responded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: In vitro culture; Medicinal plant; Naphthodianthrones; Plant genetic engineering.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100590

Analytical lifecycle management oriented development and validation of a new stability-indicating ultra-fast liquid chromatographic method: case study of Glycopyrrolate
Provedor de dados: 60
Autores: Panda,Sagar Suman; Kumar,B. V. V. Ravi; Swain,Suchismita.
A new stability-indicating liquid chromatographic method was developed and validated for the estimation of glycopyrrolate in pharmaceutical formulations. A contemporary approach to analytical life-cycle management was followed to develop a robust and reliable chromatographic method. Scouted method variables such as % methanol, the strength of tetra butyl ammonium hydrogen sulfate and mobile phase flow rate were optimized using the design of experiment approach and their effect on critical quality attributes was studied. The critical quality attributes viz. retention time, theoretical plate count and symmetry factor were highly influenced by the three critical method variables. Optimum chromatography was attained on a C-18 column with a mobile phase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycopyrrolate; Stability-indicating; Liquid chromatography; Life cycle management; Validation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100605

Systematic review protocol: following PRISMA guide from Cochrane to generate evidence as treatment effect of pharmaceutical care for hypertension in primary care
Provedor de dados: 60
Autores: Cazarim,Maurílio de Souza; Reis,Tiago Marques dos; Cruz-Cazarim,Estael Luzia Coelho da; Pereira,Leonardo Régis Leira.
Pharmaceutical care (PC) is in the implementation process in Brazil and Latin America. Synthesis of evidence has been requested for monitoring and evaluating the process regarding the treatment effect. The objective is to build and disseminate a systematic review protocol to make a standard for updating results from pharmaceutical care for hypertension and for other diseases. This is a protocol for systematic review studies regarding a real example of a protocol reasoned in pharmaceutical care for hypertension in primary care. This protocol was delineated grounded in the Cochrane Handbook. Descriptors and words were defined using MeSH (Medical Subject Headings), DeCS (Descriptors in Health Sciences) and Emtree thesaurus, and the search was performed in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pharmaceutical services; Hypertension; Primary health care; Review literature as topic; Evidence-based medicine.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100620

Bioisosteric modification on melatonin: synthesis of new naphthalene derivatives, in vitro antioxidant activity and cytotoxicity studies
Provedor de dados: 60
Autores: Shirinzadeh,Hanif; Ghalia,Mohammed; Tascioglu,Alev; Adjali,Ferial Intissar; Gunesacar,Gulsen; Gurer-Orhan,Hande; Suzen,Sibel.
Melatonin (MLT) is a strong free radical scavenger that protects the body from the deleterious effects of excess oxidants. Synthesis of MLT analogue compounds with antioxidant potency has recently attracted the interest of researchers. In general, the strategy consists of modifying the groups in the different sites of the indole ring or replacing the indole ring with an analogue. As part of our ongoing research, the antioxidant capacity and cytotoxicity of newly synthesized MLT analogue naphthalene derivatives were evaluated. The radical scavenging activity was tested by a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Most of the synthesized compounds showed significant antioxidant activity in comparison to MLT. The structure-activity relationship was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Cytotoxic; Melatonin; MTT; DPPH.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100550

NLRP3 inflammasome in metabolic syndrome
Provedor de dados: 60
Autores: Wang,Fang; Mo,Zhaohui.
Metabolic syndrome (MS) is a serious health problem worldwide; it is characterized by a group of metabolic disorders, including central obesity, insulin resistance/type 2 diabetes, hyperlipidemia with accelerated atherosclerosis, hypertension, non-alcoholic fatty liver disease, and elevated uric acid with increased risk of gout. The incidence of MS has increased considerably in recent decades and has attracted considerable attention. A number of clinical and translational laboratory studies have implicated the activation of nucleotide-binding domain and leucine-rich repeat protein 3 (NLRP3) inflammasome in the development of MS, therefore establishing a strong link between chronic inflammation and metabolic diseases. This paper aims to review new...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metabolic syndrome; NLRP3 inflammasome; Chronic inflammation; IL-1β.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100639

Ethanol extract of Cissampelos sympodialis ameliorates lung tissue damage in streptozotocin-induced diabetic rats
Provedor de dados: 60
Autores: Medeiros,Tessio David de; Pereira,Annyelly Tavares; Silva,Flavio Santos da; Bortolin,Raul Hernandes; Taveira,Karinna Veríssimo Meira; Abreu,Bento João da Graça Azevedo; Rezende,Adriana Augusto de; Farias,Naisandra Bezerra da Silva; Barbosa Filho,José Maria; Medeiros,Karina Carla de Paula.
Diabetes Mellitus (DM) is a metabolic syndrome characterized by hyperglycemia. Chronic complications affect a number of organs, including the lungs. Cissampelos sympodialis Eichl (Menispermaceae) is a plant used to treat respiratory diseases. The aim of this study was to evaluate the effect of Cissampelos sympodialis extract (CSE) in lungs of diabetic rats. We used 30 Wistar rats divided into three groups: control group (CG), diabetic group (DG) and diabetic Cissampelos sympodialis treatment group (DTG). Diabetes was induced by streptozotocin (40 mg/kg i.v.). The CSE (400 mg/kg, po) was administered daily, during four weeks, beginning one week after the onset of DM. The treatment with CSE was not able to reduce blood glucose levels after streptozotocin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cissampelos sympodialis; Diabetes; Lung; Pancreatic islets; Lipid profile.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100505

Preparation and characterization of liposomes loaded with silver nanoparticles obtained by green synthesis
Provedor de dados: 60
Autores: Espinoza,Joel Toribio; Novak,Robson Schimandeiro; Magalhães,Cássia Gonçalves; Budel,Jane Manfron; Justus,Barbara; Gonçalves,Melissa Marques; Boscardin,Patricia Mathias Döll; Farago,Paulo Vitor; Paula,Josiane de Fátima Padiha De.
The objective of this work was to develop and characterize liposomes loaded with silver nanoparticles (LAgNPs) to show improvement in stability characteristics. AgNPs were prepared by the green synthesis method with Aloe vera gel extract and exposure to sunlight. Liposomes were prepared by the modified reverse phase method. Particle size, polydispersity index, zeta potential, as well as the scanning electron microscopy (SEM) morphological aspects of AgNPs and LAgNPs were evaluated. In addition, was used flame atomic absorption spectroscopy to determine the amount of AgNP that was encapsulated in liposomes. The AgNPs presented as amorphous and polydisperse structures, with a mean diameter of 278.46 nm and zeta potential of -18.3 mV. LAgNPs had a mean...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Silver nanoparticles; Aloe vera; Sunlight; Liposomes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100625

Effect of drying methods on the powder and compaction properties of microcrystalline cellulose derived from Gossypium herbaceum
Provedor de dados: 60
Autores: Nwachukwu,Nkemakolam; Ofoefule,Sabinus Ifeanyi.
The effect of drying method, a process variable, on the powder and compaction properties of microcrystalline cellulose (MCC) obtained from the partial acid hydrolysis of bleached alpha (α) cellulose content of matured linters of Gossypium herbaceum (GH) was investigated. A portion of the wet MCC obtained was fluid bed dried at 60 ± 1 ºC, inlet air of 30 m3 min-1 for 3 h (coded MCC-GossF). The second portion was lyophilized at - 45 ± 2 ºC for 6 h (coded MCC-GossL). The physicochemical, scanning electron micrographs, X ray diffraction patterns and micromeritic properties of the derived MCCs were determined using standard methods. The cohesiveness and compactibility of the powders were investigated using Kawakita model while the deformation and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium herbaceum; Powder; Compaction; Drying methods; Microcrystalline cellulose.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100581

Intralesional corticosteroid injection as an effective treatment method for oral lesions: a meta-analysis
Provedor de dados: 60
Autores: Gholizadeh,Narges; Sadrzadeh-Afshar,Maryam-Sadat; Sheykhbahaei,Nafiseh.
Intralesional corticosteroid injection (ICSI) is known as one of the main methods used for treating a wide range of lesions. It also results in a high concentration of drugs at lesion sites, with minimal systemic absorption. Thus, this study aimed to provide a review of the intralesional corticosteroid injection (ICSI) indications in the treatment of oral lesions. To this end; relevant key words were searched in the databases of PubMed, Google Scholar, Scopus, ScienceDirect, and UpToDate in the present study. Accordingly, the results of a total number of 62 case reports or case series articles were used in this study and the positive therapeutic effects of intralesional corticosteroid injection (ICSI) in 23 common oral lesions were reported. The most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intralesional corticosteroid injection; Triamcinolone; Betamethasone; Oral lesions; Oral disorders; Steroid injection.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100701

Gd-GLU toward NMR imaging: synthesis, characterization and breast cell uptake assay
Provedor de dados: 60
Autores: Campos,Tarcisio Passos Ribeiro de; Dalmazio,Ilza; Augusti,Rodiney; Almeida,Iassudara Garcia.
Breast cancer cell uptake of Gd-metal is investigated based on the formation of coordinate compounds of gadolinium and glucose (Glu) molecules in solution. The hypothesis is that glucose helps Gd-internalization by complex formations constituted of Gd3+ coordinate to m-glucose molecules, whose valence was complemented by Cl- anions. Such a proposal is an insight toward a metabolic-dependent contrast-agent for cancer and inflammation in magnetic resonance image. A solution was prepared based on anhydrous d-glucose and gadolinium chloride (Gd-Glu). Uptake assays for MDA-MB-231(c231) cells were elaborated collecting incubated c231-cells with Gd-Glu and measuring metal-uptake and their concentrations by Nuclear Activation Analysis (NAA). The ionic solution was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glucose; Gadolinium; Breast cancer; In vitro uptake; MDA-MB-231.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100527

Effect on hyperglycemia and pancreas cells of chaya aqueous extracts from two different regions in streptozotocin-induced diabetes rats
Provedor de dados: 60
Autores: Guzmán,Eduardo Lozano; González,José Cruz Calderón; Flores,Maribel Cervantes; Carrillo,Ada Sandoval; Pescador,María Guadalupe Nieto; Cruz,Francisco Javier Moreno.
Cnidoscolus chayamansa is a native plant of the Mayan region, which is also cultivated in other places like northern Mexico, Tunisia and India. Many properties are attributed to Mayan Chaya, such as aid in the control of glycemia in diabetics. Thus this study aimed to evaluate the hypoglycemic effects of chaya aqueous extracts in a model of streptozotisin-induced diabetic Wistar rats. Chaya aqueous extracts were collected from plants cultivated in Quinta Roo (Mayan region) and Durango (northern Mexico), and in this study we compare their effect with metformin (as a control). Additionally, we compared the extracts mass profiles from both regions by high-resolution liquid chromatography coupled to a triple quadrupole tandem mass detector (HPLC-MS/MS QQQ)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diabetes; Chaya; Langerhans islets; Hypoglycemia; HPLC.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100619

Emerging intervention of antidepressant with DMARD in non-cancerous nociceptive persistent pain associated depression in FCA induced rheumatoid arthritic rats
Provedor de dados: 60
Autores: Pachiappan,Sudhakar; Murugaiyan,Sudaroli; Chandrasekar,Sabarinath.
Rheumatoid arthritis (RA) is a chronic inflammatory disorder that causes pain, systemic complications and premature mortality. Depression has also been identified as a problem for persons with RA. This association remaining significant even after the degree of disease activity is controlled. In the present study, the efficacy of combination therapeutic effect of antidepressant (amitriptyline) with Disease Modifying Anti rheumatoid drug (leflunomide) was determined in rheumatoid arthritis pain associated depression in Freund’s complete adjuvant (FCA) induced arthritic rats. Drug treatment was started 9 days after induction of FCA induced arthritis in rats. The antiarthritic activity was assessed by measuring paw volume, weight-bearing, hematological,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arthritis associated depression; Freund’s complete adjuvant; Amitriptyline; Leflunomide.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100637

Effect of solvent polarity on extraction yield and antioxidant properties of phytochemicals from bean (Phaseolus vulgaris) seeds
Provedor de dados: 60
Autores: Nawaz,Haq; Shad,Muhammad Aslam; Rehman,Najiha; Andaleeb,Hina; Ullah,Najeeb.
The effect of solvent polarity on extraction yield and antioxidant properties of phytochemical compounds in bean seeds was studied. Seed flour of three varieties of bean was extracted in a series of organic solvents with increasing polarity (n-hexane, petroleum ether, chloroform, ethyl acetate, ethanol, acetone and water). Preliminary screening of phytochemicals showed the presence of tannins, flavonoids, cardiac glycosides, anthocyanins, terpenoids, carotenoids, ascorbic acid and reducing compounds in all extracts. One way analysis of variance (ANOVA) of results showed that extraction yield, phytochemical content and antioxidant properties were significantly influenced (p&lt;0.05) by the polarity of extracting solvents. The regression analysis of data...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beans seeds/antioxidant properties; Phaseolus vulgaris/phytochemical composition; Regression analysis; Solvent polarity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100501

Tacinga inamoena vegetal drug characterization using phytochemistry, pharmacopoeial methods and thermoanalytical techniques
Provedor de dados: 60
Autores: Silva,Joanda Paolla Raimundo e; Reis,Malu Maria Lucas dos; Santana,Cleildo Pereira; Medeiros,Ana Cláudia Dantas de; Alves,Harley da Silva.
Tacinga inamoena (K. Schum.) N.P. Taylor &amp; Stuppy, also known as quipá, is a native cactus of the Caatinga used in traditional medicine to treat urethral infections and inflammation. This study aimed to determine the physicochemical characteristics of vegetal drug obtained from the roots of T. inamoena. Analytical techniques and phytochemical tests were used, such as thermal analysis, qualitative and semiquantitative determination of secondary metabolites and spectroscopy at the infrared region. The powder of the vegetal drug met the parameters established by the Brazilian Pharmacopoeia, except for compressibility, which was low. On the thermogravimetric curve, three events related to the mass loss were verified, which correlate with the vegetal drug...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cactaceae; Quality control; Herbal medicine; Secondary metabolites; Thermogravimetry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100602

Association between soluble biomarkers - microbial translocation, inflammation and cardiovascular risk in HIV- infected individuals: a systematic review
Provedor de dados: 60
Autores: Borato,Danielle Cristyane Kalva; Vellosa,José Carlos Rebuglio.
Microbial translocation is associated with the increased risk of cardiovascular disease in HIV-infected individuals. There is scarce information regarding the possible associations between the biomarkers of microbial translocation, inflammation and cardiovascular risk that can be evaluated in clinical laboratories using plasma or serum samples. This systematic review was conducted according to the PRISMA protocol in order to verify the most used soluble biomarkers of microbial translocation, inflammation and cardiovascular risk, as well as possible associations between them, in HIV-infected individuals. A search was performed using the Medline, Scopus and Web of Science databases to identify existing studies regarding the relationship between microbial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microbial translocation; Inflammation; Cardiovascular risk; HIV; Biomarkers.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100614

Laurus nobilis L.: assessment of the cytotoxic and genotoxic potential of aqueous extracts by micronucleus and Allium cepa assays
Provedor de dados: 60
Autores: Silva,Mayara Christine; Matos,Aline Ferreira; Santos,Hataânderson Luíz Cabral dos; Gomes,Jennifer Vieira; Pastura,Danilo Giovanni Narciso; Pereira,Gabriela Lopes; Rocha,Ellen Borges da; Larangeira,Mayara de Jesus Costa; Alves,Raphael Santiago; Bastos,Leonardo de Oliveira; Borba,Helcio Resende; Lima,Viviane Moreira de.
Laurus nobilis L. is a large shrub belonging to the Lauracea family. Its leaves are widely used for food seasoning as well as in folk medicine. Various studies have demonstrated the antiproliferative, antifungal and antibacterial effects of Laurus nobilis, but no studies have investigated the genotoxic effect of the aqueous extract of the plant. The objective of this study was to analyze the genotoxic potential of an aqueous extract of leaves, using the Allium cepa assay and mouse peripheral blood cell micronucleus test. The results showed that the extract did not have any genotoxic activity, but cytotoxic activity was observed in the two experimental models used. The extract had an antiproliferative effect, detected through the reduction of the mitotic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laurus nobilis; Allium cepa; Micronucleus; Genotoxicity; Cytotoxicity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100534

Quality by design (Qbd) approach to develop stability indicating HPLC method for estimation of rutin in chitosan-sodium alginate nanoparticles
Provedor de dados: 60
Autores: Vijayaraj,Surendran; Palei,Narahari N; Archana,Devalapalli; Lathasri,Kuppam; Rajavel,Ponnusamy.
Rutin is a flavonoid glycoside, mainly consists of phenolic compounds, responsible for many biological activities. The objective of the present study was to develop and validate a precise, simple, robust, rapid and reliable reverse phase high -performance liquid chromatography (RP-HPLC) technique by using Qbd approach for evaluating the rutin in nanoparticles. Central composite design (CCD) was employed for optimizing the experimental conditions of RP-HPLC method. Buffer pH, methanol content in the mobile phase composition, flow rate, and wavelength were selected as independent variables whereas retention time, peak area, and asymmetry factor was selected as dependent variables. The retention time, peak area and asymmetric factor of rutin by using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rutin; Chitosan; Sodium aliginate; Nanoparticles; RP-HPLC; Central composite design; QbD.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100632

Up-regulation of human immune system function by Donkey’s Milk
Provedor de dados: 60
Autores: Taghiloo,Saeid; Allahmoradi,Esmaeil; Sadeghian-Kiadehi,Seyedeh Forough; Omrani-Nava,Versa; Nazar,Eisa; Ebrahimzadeh,Mohammad Ali.
Donkey’s milk represents a good alternative to human milk because of its chemical characteristics similar to those of human’s. In present study, the pro- and anti-inflammatory effects of donkey’s milk were evaluated on peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from 12 young and 12 aged normal subjects. PBMCs were cultured with or without the optimal and non-cytotoxic dose of pasteurized donkey’s milk, and polymyxin B was used to inhibit the possible endotoxin contamination. Following 18 hours incubation, culture supernatants were harvested to measure the secreted Tumor necrosis factor-α (TNF-α), Interleukin-6 (IL-6), Interleukin-8 (IL-8) and Interleukin-10 (IL-10) by ELISA. Donkey’s milk significantly increased TNF-α (p= 0.01), IL-8...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Donkey’s milk; ELISA; Immune system; Aged subject; Cytokine.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100607

In vitro antifungal activity and phytochemical characterization of Eugenia uniflora, Libidibia ferrea and Psidium guajava
Provedor de dados: 60
Autores: Ferreira,Magda Rhayanny Assunção; Santiago,Rosilene Rodrigues; Silva-Rocha,Walicyranison Plínio; Souza,Luanda Barbara Ferreira Canário de; Faria,Maria Graciela Icher; Mello,João Carlos Palazzo de; Langassner,Silvana Maria Zucolotto; Chaves,Guilherme Maranhão; Milan,Eveline Pipolo; Svidzinski,Terezinha Inez Estivalet; Soares,Luiz Alberto Lira.
The aim of this study was evaluate the in vitro antifungal activity of crude extracts from Eugenia uniflora, Libidibia ferrea and Psidium guajava. The extracts were obtained by turbo-extraction using water (AQ) or acetone-water (AC-W) (7:3, v/v) as solvents and lyophilized to obtain the crude extracts (CE). The CE were characterized by UV-Vis, TLC and HPLC. The activity of CEs was investigated against clinical isolates of Candida spp. and the Minimum Inhibitory Concentration (MIC), MIC50 and MIC90 were determinated. The analysis by TLC showed that all CEs presented polyphenols (flavonoids and tannins). The CEs from E. uniflora showed higher amount of polyphenols (30.35 ± 2.15%, AC-W) and the HPLC analysis revealed the tannins in all extracts. The CEs of E....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Medicinal plants; Herbal extracts; Polyphenols; Candida isolates; Oral candidiasis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100608

Development and validation of a stability indicating high performance liquid chromatography method for trimethobenzamide
Provedor de dados: 60
Autores: Swamy,Narayana; Reddy,Venkata Krishna; Thorat,Poonam; Sengupta,Pinaki.
A simple, accurate, precise and robust stability indicating RP-HPLC assay method has been developed for the estimation of trimethobenzamide in stress sample. An isocratic separation of trimethobenzamide was achieved on Kromasil 100 C-18 column (250 X 4.6mm, 5µ) with a flow rate of 1.0 ml/min and by using a photodiode array detector to detect the analyte at 213nm. The optimized mobile phase consisted of methanol: ammonium formate (44:56, v/v). The drug was subjected to different forced degradation conditions according to ICH guidelines including acid, base, neutral hydrolysis, oxidation, photolysis and thermal degradation. Degradation products were found only in basic and oxidative degradation conditions. All the degradation products got eluted in an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trimethobenzamide; Stability indicating assay method; Method development and validation; RP-HPLC.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100582

Exploring the shared genes of hypertension, diabetes and hyperlipidemia based on microarray
Provedor de dados: 60
Autores: Dong,Wenzhu; Chen,Hangping; Wang,Lu; Cao,Xiaoqian; Bu,Xiawei; Peng,Yan; Dong,Aiqing; Ying,Mengjiang; Chen,Xu; Zhang,Xin; Yao,Li.
Given their relationship with metabolic syndrome and systematic inflammatory diseases, the pathogenesis of hypertension, hyperglycemia, and hyperlipidemia is closely related. To explore the common genes among these three conditions, spontaneous hypertensive rats (SHR), spontaneous diabetic Goto-Kakizaki rats (GK) and hyperlipidemia rats (HMR) were reared for experiments. Gene array was used to identify the genes of SHR, GK and HMR compared with normal Wistar rats using TBtools software. First, real-time PCR was applied to verify these genes, and Cytoscape software was used to construct networks based on the National Center for Biotechnology Information (NCBI) database. Second, Kyoto Encyclopedia of Genes and Genomes (KEGG) database analysis was performed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hypertension; Diabetes; Hyperlipidemia; Genes; Microarray; Neoplasm.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100566

Validation of an analytical method by high-performance liquid chromatography and microbiological assay, biological safety and in silico toxicity for danofloxacin
Provedor de dados: 60
Autores: Cordeiro,Everson Willian Fialho; Hilgert,Renata Medeiros; Batista,Luiz Alcides das Chagas; Souza,Raul Oliveira; Oliveira,Luís Flávio Souza de; Machado,Michel Mansur; Malesuik,Marcelo Donadel; Paula,Fávero Reisdorfer; Stopiglia,Cheila Denise Ottonelli; Paim,Clésio Soldateli.
Danofloxacin is a veterinary fluoroquinolone used to treat respiratory and gastrointestinal diseases of birds, pigs and cattle. The literature reviewed shows some analytical methods to quantify this fluoroquinolone, but microbiological and biological safety studies are limited. The analytical methods were validated by the Official Codes. The LC-DAD method was developed and validated using an RP-18 column, mobile phase containing a mixture of 0.3% triethylamine (pH 3.0) and acetonitrile (85:15, v/v). The microbiological assay was performed by agar diffusion method (3 x 3) and Staphylococcus epidermidis as a microorganism test. Forced degradation studies were performed in both methods. The minimum inhibitory concentration (MIC) was performed by test...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Danofloxacin; Microbiological assay; Biological safety; In silico toxicology; Fluoroquinolones photodegradation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100555

Anti-inflammatory activity and identification of the Verbena litoralis Kunth crude extract constituents
Provedor de dados: 60
Autores: Lima,Rachel de; Brondani,Juliana Calil; Dornelles,Rafaela Castro; Lhamas,Cibele Lima; Faccin,Henrique; Silva,Carine Viana; Dalmora,Sérgio Luiz; Manfron,Melânia Palermo.
Verbena litoralis is a plant popularly known as “gervãozinho-do-campo” in Portuguese. It is traditionally used for stomach, liver and gallbladder problems, and as an anti-inflammatory and anthelmintic. The goal of this study was to determine the chemical composition of the crude extract obtained from the aerial parts of V. litoralis by Ultra High Performance Liquid chromatography coupled with Mass Spectrometry in Tandem (UHPLC-MS/MS); assess the anti-inflammatory activity of ethyl acetate fraction and of crude extract; and verify liver, kidney and pancreas damage. In this study, the chemical composition of the extract was identified via UHPLC/MS/MS, assessing the anti-inflammatory activity of the crude extract and the acetate fraction in an induction model...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Verbena litoralis; UHPLC/MS; Flavonoids; Anti-inflammatory.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100540

Synergistic effect of ibuprofen with itraconazole and fluconazole against Cryptococcus neoformans
Provedor de dados: 60
Autores: Rocha,Letícia Fernandes da; Pippi,Bruna; Fuentefria,Alexandre Meneghello; Mezzari,Adelina.
The present study investigated the association of the non-steroidal anti-inflammatory drug ibuprofen with itraconazole, fluconazole and amphotericin B against Cryptococcus neoformans isolates. The minimal inhibitory concentration (MIC) was found according to M27-A3 protocol and in vitro interactions were evaluated using checkerboard microdilution method. Synergism was demonstrated between azoles and ibuprofen for most isolates. However, no synergistic effects were seen when amphotericin B was combined with ibuprofen. Therefore, our results suggest that ibuprofen presents clinical potential when combined with azole drugs in the treatment of cryptococcosis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryptococcus neoformans; Ibuprofen; Itraconazole; Fluconazole; Synergism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100577

Validation of a method for simultaneous analysis of cocaine, benzoylecognine and cocaethylene in urine using gas chromatography-mass spectrometry
Provedor de dados: 60
Autores: Menotti,Vinicius Stela; Scanferla,Deborah Thais Palma; Oliveira,Kleber Ota de; Fratucci,Gabriela Felber; Alves,Gessé de Souza; Bando,Erika; Nerilo,Samuel Botião; Oliveira,Magda Lúcia Félix de; Machinski Junior,Miguel; Mossini,Simone Aparecida Galerani.
Abstract The present study describes a method for simultaneous analysis of cocaine, benzoylecgonine and cocaethylene in urine samples. After solid phase extraction, Gas Chromatography-Mass Spectrometry was used for identification and quantification. The calibration curves were linear at 20 - 3000 ng/mL, r2 0.9997 for benzoylecgonine, 15 - 2000 ng/mL, r2 0.9985 and r2 0.9993 for cocaine and cocaethylene, respectively. Accuracy values: cocaine: 93,5 - 102,1%; benzoylecgonine: 97,5 - 104,8%; cocaethylene: 90,6 - 101,5%. Precision values: cocaine: C.V 5,4 - 14,6%; benzoylecgonine: C.V 7,8 - 12,3%; cocaethylene: C.V 5,9 - 12,3%. Detection and quantification limit values: cocaine and cocaethylene:10 ng/mL and 15 ng/mL, respectivalty; benzoylecgonine:15 ng/mL and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Analytical validation; GC-MS; Cocaine; Human urine.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100627

Synthesis and antibacterial activity of a series novel 5,7-diisoprenyloxyflavone derivatives
Provedor de dados: 60
Autores: Jin,Qing-Hao; Fu,Zhi-Yang; Xia,Ya-Nan; Liu,Bing-Yu; Jiang,Hai-Ying.
In the present study, a series of novel 5,7-diisoprenyloxyflavone derivatives were designed, synthesized, and evaluated for their antibacterial activity. Most of these compounds displayed significant antibacterial effects against Gram-positive bacteria, especially against strains of multidrug-resistant clinical isolates. Compounds 4c, 4g, 4i, 4j, 4k, 4l, 4n, 4q and 4t showed high levels of antimicrobial activity against Staphylococcus aureus RN4220 with minimum inhibitory concentrations of 4.0-20 µM. Compound 4k showed the most potent activity among these compounds against all multidrug-resistant clinical isolates tested. Unfortunately, none of the compounds were active against Gram-negative bacteria at the doses of 24-164 µM.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavonoids; Synthesis; Isoprenyloxyflavones; Antibacterial activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100541

Development and validation of an HPLC-UV method for accelerated stability study and pharmacokinetic analysis of venlafaxine
Provedor de dados: 60
Autores: Sher,Muhammad; Ahmad,Maria; Hassan,Faiza; Naeem-ul-Hassan,Muhammad; Hussain,Muhammad Ajaz.
A reverse phase high performance liquid chromatography method has been developed and validated for accelerated stability study and determination of pharmacokinetic parameters of venlafaxine HCl. The chromatographic separation was carried out using ODS analytical column (250 × 4.6 mm i.d., 5 µm particle size). The mobile phase included acetonitrile, methanol and potassium dihydrogen phosphate buffer (30:30:40; pH 6.1) at a flow rate 1.5 mL min−1. UV-Visible detector was used at wavelength of 227 nm to monitor elutions. Retention time observed was 2.745 min. The method was validated for linearity, accuracy, precision, sensitivity and robustness. Accelerated stability study of venlafaxine HCl capsules was carried out at 40 and 50 ºC under 75% RH level....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Venlafaxine; HPLC; Stability; Pharmacokinetics; Chromatography.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100514

Antitumor efficacy of EDTA co-treatment with cisplatin in tumor-bearing mice
Provedor de dados: 60
Autores: El-Naggar,Sabry Ali; El-Said,Karim Samy.
Ethylenediamine tetraacetic acid (EDTA) is used in various medical applications. The aim of this study is to investigate the antitumor efficacy of EDTA alone or with cisplatin (Cis). Fifty male albino mice were used to assess the median lethal dose (LD50) of EDTA via intraperitoneal (i.p) injection. To determine the antitumor activity, fifty female albino mice were divided into five groups as the following; Group 1 (Gp1) was negative control; (Gp2-5) inoculated i.p with 2×106 Ehrlich Ascites Carcinoma (EAC) cells/mouse. After one day, Gp3, Gp4 and Gp5 injected with Cis (2 mg/kg), EDTA (25 mg/kg) and Cis (2 mg/kg)/EDTA (25 mg/kg) for six days, respectively. At day 14, all groups were sacrificed to assess the tumor profile, liver enzymes (alanine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cisplatin; Ethylenediamine tetraacetic acid (EDTA)/Antitumor efficacy; Ehrlich Ascites Carcinoma.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100571

Independent and synergistic activity of the flavonoids of Gracilaria corticata as promising antidiabetic agents
Provedor de dados: 60
Autores: Sangeetha,Ragupathy.
The therapeutic approaches for Type 2 Diabetes Mellitus rely most on the usage of oral hypoglycaemic drugs. These drugs have adverse side effects and hence alternative medicines are continuously explored. The present study intends to investigate the antidiabetic potential of the flavonoids present in Gracilaria corticata. The flavonoids were isolated (FEGC) and their inhibitory activity on the carbohydrate hydrolysing enzymes such as α-amylase and α-glucosidase was analysed. The flavonoids were found to inhibit α-amylase and α-glucosidase with an IC50 value of 302 µg and 75 µg respectively. The synergistic effect of FEGC and luteolin was also investigated and the results show that both FEGC and luteolin inhibited synergistically at half their IC50 values....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Α-amylase; Α-glucosidase; Antidiabetic; Gracilaria corticata; Luteolin; Synergistic.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100618

Design, preparation and in vitro characterizations of fluconazole loaded nanostructured lipid carriers
Provedor de dados: 60
Autores: Fernandes,Amanda Velinna; Pydi,Chinna Raja; Verma,Ruchi; Jose,Jobin; Kumar,Lalit.
Present study was aimed to prepare and characterize fluconazole loaded nanostructured lipid carriers (FLZ-NLCs) for the treatment of fungal infections. Fungal infections are tremendously widespread and are the often faced dermatological condition worldwide. FLZ-NLCs was prepared by ultrasonication emulsion technique using stearic acid (SA) as solid lipid, castor oil as liquid lipid and tween 20 as a surfactant. The mean diameter of optimized FLZ-NLCs were found to be 359.15 ± 9.83 nm. The drug content and entrapment efficiency of NLCs was found to be 102.97 ± 7.45% and 87 ± 0.59%, respectively. In vitro drug release studies of FLZ-NLCs showed 37.34 ± 2.08% drug release over a period of 72 h. The above studies confirmed the prepared FLZ-NLCs may be useful...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fluconazole; NLCs; Nanostructured lipid carriers; Fungal infections; Full factorial design; Design of experiment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100524

5-Aminolevulinic acid photoactivated over planktonic and biofilm forms of Enterococcus faecalis as a pharmacological therapy alternative
Provedor de dados: 60
Autores: Beltran-Leal,Adriana; Muñoz-Ruiz,Abraham; Esparza-Villalpando,Vicente; Castro,Yolanda; Pozos-Guillen,Amaury; Flores,Héctor.
The purpose of the study was to evaluate the antibacterial effect of protoporphyrin IX (PpIX) generated by the exogenous administration of 5-aminolevulinic acid or δ-ALA and activated with an argon laser over a planktonic and biofilm of Enterococcus faecalis (E. faecalis) as a pharmacological therapy alternative. A planktonic strain of E. faecalis was cultured with a solution of ∂-ALA (40 µg/mL)-thioglycolate solution for 13 min, and a biofilm of E. faecalis was cultured in a δ-ALA (80 µg/mL)-thioglycolate solution for 13 min. Then, both were irradiated with an argon laser. Finally, the antibacterial effect was evaluated by counting the CFU in planktonic form, and a LIVE/DEAD viability cell test. The production and accumulation of PpIX from exogenously...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biofilm; Photodynamic therapy; 5-aminolevulinic acid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100572

Nonsteroidal anti-inflammatory drugs as potential ecto-nucleotide phosphodiesterase inhibitors
Provedor de dados: 60
Autores: Tasneem,Shumaila; Saleem,Muhammad; Saeed,Sheikh Arshad.
Phosphodiesterases (PDE) are group of enzymes which catalyze the hydrolysis of cAMP and cGMP. Since these cyclic phosphate moieties worked as intracellular second messengers in numerous physiological processes, their inhibition can affect normal physiology of living system. NSAIDs are among the frequently prescribed medications, because of their efficacy as analgesic, antipyretic and anti-inflammatory agents. They are known to block cyclooxygenase pathway. In limited data NSAIDs has been shown anti-tumor potential, and phosphodiesterase inhibition has assumed to be one of the mechanism. To date no further evaluation being done. Further, NSAIDs are classified as cyclooxygenase inhibitors and phosphodiesterase inhibition can imprint its side effects. This...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Non-steroidal antiinflammatory drugs; Cyclooxygenase; Phosphodiesterase; Inflammation; CAMP.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100531

Bovine serum albumin-based nanoparticles containing the flavonoid rutin produced by nano spray drying
Provedor de dados: 60
Autores: Pedrozo,Regiellen Cristina; Antônio,Emilli; Khalil,Najeh Maissar; Mainardes,Rubiana Mara.
Rutin is a flavonoid compound obtained from different vegetables and fruits; specifically, it is found in the seeds of buckwheat and in fruit peels, particularly citrus. It is also an important constituent of red wine. Rutin exhibits various biological properties including antiviral, vasoprotective, anti-inflammatory, and anticarcinogenic activities. However, its antioxidant activity is the most well studied. Despite the potential for in vitro applications, rutin presents low oral bioavailability that affects its biological activities. Nanoparticles composed of polymers, protein, or lipids are of great importance in the pharmaceutical and nutraceutical areas due to their physicochemical properties, which improve the pharmacokinetics of the drug which is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nano spray drying; Rutin; Nanoparticles; Bovine serum albumin; Antioxidant.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100512

Evaluation of immunomodulatory effects of lomefloxacin in mice
Provedor de dados: 60
Autores: Majeed,Arfa; Javeed,Aqeel; Omer,Muhammad Ovais; Mushtaq,Muhammad Hassan; Sattar,Adeel.
Lomefloxacin is a flouroquinolone antibiotic that is quite efficacious against many gram negative and gram positive pathogens. Lomefloxacin evince antibacterial effects by modifying DNA gyrase in gram negative pathogens and topoisomerase IV in gram positive pathogens. This study is designed to assess the immunomodulatory effects of lomefloxacin in male albino mice. Three doses of lomefloxacin 12.5 mg/kg, 25 mg/kg and 50 mg/kg were used and delayed type hypersensitivity assay, cyclophosphamide induced neutropenic assay, carbon clearance assay, heamagglutination assay and mice lethality test were performed to evaluate the effects of lomefloxacin on immune system of mice. DTH assay has depicted the significant immunosuppressant potential of lomefloxacin at 25...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cell-mediated; Humoral; Immunomodulatory; Immune response; Lomefloxacin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100628

Aluminium and calcium lake pigments of Lac natural dye
Provedor de dados: 60
Autores: Jimtaisong,Ampa.
This work presents the physicochemical properties of the prepared lac lakes. The study revealed the stability, cytotoxicity and use of lac lake pigment as a cosmetic colorant. SEM, XRD and DSC were used to study the characteristics of the lac lakes.. The color stability of lac dye and its lakes was investigated at ambient temperature and at 45 °C, in sunlight,fluorescent light and darkness, for 3 months. Cytotoxicity on human dermal skin fibroblast cell lines was tested using MTT assay and the use of the lakes as a colorant in lip color product was studied. Different metal salts resulted in lac lakes of different shades and appearance. SEM, XRD and DSC results indicated that the morphology and structure of lac dye were changed after reacting with metal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laccaic acids; Natural lac dye; Lake pigment; Cosmetics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100551

The in vitro and in vivo investigation of biological activities and phenolic analysis of Helichrysum plicatum subsp. plicatum
Provedor de dados: 60
Autores: Taşkın,Turgut; Gezmiş,Tuğba; Çam,Muhammet Emin; Taşkın,Duygu; Çelik,Berna Özbek; Şenkardeş,İsmail; Süzgeç-Selçuk,Sevda.
In Turkey, Helichrysum genus is represented by 26 taxa belonging to 20 species in Turkish flora of which 14 ones are endemic to Turkey. The aerial parts of Helichrysum plicatum subsp. plicatum are used kidney stones, kidney and stomach ailments. The extraction procedures and solvents are important step in processing of bioactive constituents from the plant materials. Therefore, the aim of this study was to evaluate in vitro antioxidant, antimicrobial, anti-urease, anticholinesterase and in vivo anti-inflammatory activities of Helichrysum plicatum subsp. plicatum different extracts. In addition, the phenolic characterization of the Soxhlet and maceration methanol extracts which showed significant antioxidant, anti-urease, antimicrobial, anti-inflammatory...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Helichrysum plicatum subsp; Plicatum; Anti-inflammatory; Anti-urease; Anticholinesterase; HPLC-DAD-MS.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100554

Development and validation of highly selective method for the determination of imatinib mesylate and dexketoprofen trometamol combination in three different media
Provedor de dados: 60
Autores: Coban,Ozlem; Degim,Zelihagul.
Imatinib mesylate is a small molecule used in cancer therapy as a thyrosine kinase inhibitor. Dexketoprofen trometamol is a non-steroidal anti-inflammatory drug that has seen use in cancer therapy in combination with an anticancer drug to minimize tumor size and to reduce pain in patients. In the present study, imatinib mesylate and dexketoprofen trometamol were selected as potential model drugs to be used in combination. A new, simple and selective Ultra Performance Liquid Chromatography method was developed and validated to determine the drug substances in distilled water, in a pH 7.4 phosphate buffer and in Dulbecco’s Modified Eagle Medium. The proposed method was developed using a BEH C-18 column with isocratic elution. A mixture of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Imatinib mesylate; Dexketoprofen trometamol; Ultra Performance Liquid Chromatography; Dulbecco’s Modified Eagle Medium.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100575

Equilibrium solubility study to determine fexofenadine hydrochloride BCS class and challenges in establishing conditions for dissolution profiles applied to suspension
Provedor de dados: 60
Autores: Rosa,Lorena de Sousa; Marques-Marinho,Flávia Dias; Braga,Silmara Leôncio; Souza,Jacqueline de.
The aim of this work was to perform solubility studies for fexofenadine hydrochloride and establish dissolution conditions for this drug in oral suspension dosage form. The solubility study was executed through the shake-flask method, below 37 ºC±1 ºC, at 100 rpm stirring for 12 h in three buffer solutions: hydrochloric acid pH 2.0, acetate pH 4.5 and phosphate pH 6.8. The dissolution test was developed in vessels containing 900 mL of the same buffer, employing the paddle apparatus in speed of 25 and 50 rpm, below 37 ºC±0.5 ºC. The drug was classified as low solubility according to the Biopharmaceutics Classification System, since the dose/solubility ratio was higher than 250 mL in all media tested (326.55 mL in buffer pH 2.0; 2,456.33 mL in buffer pH 4.5...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fexofenadine hydrochloride; HPLC method; Biopharmaceutics; Suspension; Dissolution profile.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100585

The plasma Tumor Necrosis Factor-α (TNF-α) does not have any correlation with disease activity in rheumatoid arthritis patients treated with disease modifying anti-rheumatic drugs (DMARDs)
Provedor de dados: 60
Autores: Samimi,Zahra; Kardideh,Bahareh; Chalabi,Maryam; Zafari,Parisa; Taghadosi,Mahdi.
We performed this study to measure the Tumor Necrosis Factor-alpha (TNF-α) plasma level and to survey its correlation with disease activity in the newly diagnosed Rheumatoid Arthritis (RA) patients and those who were under treatment with the combination of Disease-Modifying Anti-Rheumatic Drug (DMARD) plus Prednisolone (PSL).We enrolled 30 newly diagnosed RA patients who received no treatment regarding their disease, 30 patients under treatment with the combination of Methotrexate (MTX) + Hydroxychloroquine (HCQ) + PSL and 30 healthy subjects in this case-control study from September 2017 to December 2017. The level of plasma TNF-α was measured by enzyme-linked immunosorbent assay (ELISA) in each group. For assessment of disease severity, we used Disease...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rheumatoid arthritis; TNF-α; DAS-28; DMARD.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100601

Development of para rubber seed oil as the efficient makeup remover
Provedor de dados: 60
Autores: Lourith,Nattaya; Kanlayavattanakul,Mayuree.
The para rubber tree (Hevea basilensis) is an economically important tropical tree species that produces natural rubber, a valuable industrial raw material. Innovative products that are derived from by-products from the rubber production process, such as seeds, are important for the sustainability of the para rubber industry. Therefore we subjectively assessed para rubber seed oil for its makeup-removal efficacy and developed it into a makeup cleansing product with appropriate quality control measures for the cosmetic industry. The makeup-removal efficacy of para rubber seed oil was analyzed using a validated UV-Vis spectroscopy, which indicated that the oil removed 86.21 ± 2.48% of liquid foundation [relative standard deviation (RSD) = 2.88%]. Therefore,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Para rubber; Bio-oil; Color cosmetics; Makeup remover; Cleansing efficacy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100545

Neutralizing potential of Rauvolfia serpentina root extract against Naja naja venom
Provedor de dados: 60
Autores: Sivaraman,Thulasi; Sreedevi,Nadooparambil Sasi; Meenachisundharam,Subramani; Vadivelan,Ramachandran.
Snake bites are a serious health hazard occurs throughout the world especially in tropical countries like India. Anti-Snake Venom Serum is the only remedy available to treat snake bite victims successfully till date. Infusion of ASV may lead to adverse reactions ranging from severe itching of the skin, hives to potentially serious allergic reactions. Considering all above difficulties research workers all over the world is constantly in search of a cheap and readily available easy formulate remedy for treating snake bite victims. In present study aqueous extract of Rauvolfia serpentina root was checked for the antidote properties against Naja naja venom by in vitro and in vivo methods. Various in vitro neutralization tests like Acetyl cholinesterase,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Snake bite; Naja naja; Rauvolfia serpentina; Antivenom compounds.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100546

Protective effects of Urtica dioica L. seed extract on liver tissue injury and antioxidant capacity in irradiated rats
Provedor de dados: 60
Autores: Yıldızhan,Kenan; Demirtaş,Ömer Can; Uyar,Ahmet; Huyut,Zübeyir; Çakir,Tahir; Keleş,Ömer Faruk; Yener,Zabit.
Radiotherapy is often used for the treatment of cancer. However, it causes some side effects in patients. This study aimed to determine the hepatoprotective effects of Urtica dioica L. seed-extract (UDSE) in radiation-induced liver injury. Thirty-two male rats were randomly divided into 4 groups (n=8): control(C) group: no action was taken; radiation (R) group: irradiation was administrated at 5Gy single-fraction, radiation with UDSE(R+UDSE) group: irradiation was administrated at 5 Gy single-fraction and animals were fed pellets with 30 mL UDSE/kg; UDSE group: animals were fed pellets with 30 mL UDSE/kg. All of the experiments were performed in all of the groups over 10 days. Malondialdehyde (MDA) and reduced-glutathione (GSH) levels and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Radiation; Urtica dioica L; Seed extract; Oxidative stress; Antioxidant; Tissue injury.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100536

The effect of food intake on the pk of rhein released from diacerein
Provedor de dados: 60
Autores: Huang,Ming; Zong,Shun-lin; Zhang,Quan-ying.
Diacerein is a symptomatic slow-acting drug used for treating osteoarthritis. This drug is completely metabolized into the active metabolite rhein before reaching the systemic circulation. This study evaluated the effects of food on the pharmacokinetics of rhein released from diacerein in healthy Chinese subjects. This was a single-center, randomized, single-dose, open-label, two-period, cross-over study. Twenty-four healthy subjects were randomly selected to receive a single oral dose of 50 mg diacerein capsule in either fasted or fed state on two separate visits. Plasma samples were analyzed with LC-MS/MS. Pharmacokinetic parameters were calculated using WinNonlin software. In the fasted and fed states, the main pharmacokinetic parameters of diacerein...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diacerein capsule/pharmacokinetics; HPLC-MS/MS; High fat and calories diet.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100544

Effect of daidzein on Parkinson disease induced by reserpine in rats
Provedor de dados: 60
Autores: Goel,Radha; Chaudhary,Rabia.
Parkinson disease is a neurodegenerative disorder characterised by the cardinal symptoms of stiffness, resting tremor, slowness (bradykinesia) and reduction of movement (hypokinesia). Involvement of oxidative damage has been reported in the pathophysiology of Parkinson disease and its related complications. The purpose of this study was to examine the effect of daidzein to quench the free radicals produced as a result of the increased oxidative stress in Parkinson disease.Parkinson disease is induced by administration of reserpine (5 mg/kg/day, i.p) for 5 consecutive days. The symptoms of PD such as tremors, akinesia and rigidity were evaluated. The effect was evaluated by assessing various behavioral parameters (grip strength and locomotor activity),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daidzein; Reserpine; Carbidopa and Levodopa combination; Parkinson.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100559

Stability-indicating HPLC method for determination of amiodarone hydrochloride and its impurities in tablets: a detailed forced degradation study
Provedor de dados: 60
Autores: Coelho,Ana Silva; Ribeiro,Igor Felipe Rodrigues; Lages,Eduardo Burgarelli.
Resumo Amiodarone hydrochloride is one of the most important drugs used to treat arrhythmias. The USP monograph for amiodarone hydrochloride describes an HPLC method for the quantification of seven impurities, however, this method shows problems that result in unresolved peaks. Moreover, there is no monograph for tablets in this compendium. Thus, a stability indicating HPLC method was developed for the determination of amiodarone, its known impurities and degradation products in tablets. A detailed forced degradation study was performed submitting amiodarone API, tablets and placebo to different stress conditions: acid and alkaline hydrolysis, oxidation, metal ions, heat, humidity, and light. Amiodarone hydrochloride API was susceptible to degradation in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amiodarone hydrochloride; Impurities; Forced degradation; Stability indicating methods; High-performance liquid chromatography.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100552

Retrospective evaluation and prediction of clearance and toxicity of high dose methotrexate in childhood acute lymphoblastic leukemia patients
Provedor de dados: 60
Autores: Shan,Yuxia; Gao,Hui; Li,Zhong; Li,Jinghua; Liu,Yang; Li,Lujuan; Zhang,Qi.
To find the predictors of High Dose Methotrexate toxicities in childhood Acute Lymphoblastic Leukemia Patients. This study included 198 Childhood Acute Lymphoblastic Leukemia patients (303 infusions) who were treated with High Dose Methotrexate. Methotrexate levels at different time point were measured by modified enzyme multiplied immunoassay technique assay. The correlation between Methotrexate levels and toxicity was evaluated by Receiver Operating Characteristic curve. When the Methotrexate level at 42 h was lower than 0.76 µmol/L, the sensitivity for predicting thorough clearance at 66 h was 90.78%. When the Methotrexate level at 42 h was higher than1.5 µmol/L, the sensitivity for predicting delayed clearance was 82.17%. When the Methotrexate level at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Childhood acute lymphoblastic leukemia; High dose methotrexate; Toxicity; Leucovorin rescue.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100616

Evaluating the effects of vanadyl sulfate on biomarkers of oxidative stress and inflammation in renal tissue of rats with diabetes type 2
Provedor de dados: 60
Autores: Fereshteh,Bahmani; Ali-Reza,Afsharipour; Nastaran,Manteghie; Mohsen,Taghizadeh; Mehdi,Mirhashemi Seyyed.
Vanadyl sulfate (VS) is an ingredient in some food supplements and experimental drugs. This study was designed to assay the effects of VS on biomarkers of oxidative stress and inflammation in renal tissue of rats with diabetes type 2. 30 male Wistar rats were divided into three equal groups as follow: non-diabetics, non-treated diabetics and VS-treated diabetics. Diabetes type 2 has been induced through high fat diet and fructose in the animals. Diabetic rats were treated with 25 mg/kgBW of VS in water for 12 weeks. At the end of study, glucose and insulin were measured using commercially available kits in serum and biomarkers of oxidative stress and inflammation in renal homogenates of animals were measured by related methods. Compared to controls,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vanadyl Sulfate; IL-1; IL-10 Oxidative Stress Inflammations.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100576

Ethnopharmacological activity of Hedera nepalensis K. Koch extracts and lupeol against alloxan-induced type I diabetes
Provedor de dados: 60
Autores: Hashmi,Waleed Javed; Ismail,Hammad; Jafri,Laila; Mirza,Bushra.
In this study, we investigated the protective effects of Hedera nepalensis crude extract, its fractions and lupeol in alloxan-induced diabetic rats. Lupeol and n-hexane (HNN) fraction significantly reduced the blood glucose level by increasing insulin level in time dependent manner, and also significantly increased amylase and lipase activity in diabetic rats. Elevated levels of alanine transaminases (ALT), aspartate transaminases (AST), thiobarbituric acid reactive substances (TBARS), nitrite, hydrogen peroxide (H2O2), total bilirubin and total protein in blood serum were efficiently restored to normal levels. Suppressed enzymatic activity of catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH) and peroxidase (POD) were also restored to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Amylase; Diabetes mellitus; Insulin; Hedera nepalensis; Lupeol.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100597

Passion fruit (Passiflora edulis) leaf extract modulates the oxidative metabolism of rat peritoneal neutrophils in a model of inflammation
Provedor de dados: 60
Autores: Araújo,Cleiber Lucan Alves; Salles,Bruno Cesar Correa; Duarte,Stella Maris da Silveira; Rodrigues,Maria Rita; Paula,Fernanda Borges de Araújo.
This study was conducted to evaluate the effect of extracts of Passiflora edulis Sims leaves on the oxidative metabolism of rat peritoneal neutrophils using a model of acute inflammation. The extract was obtained by maceration in 70% ethanol, evaporation under reduced pressure and lyophilisation. Total phenolic content (TP) was determined by the Folin-Ciocalteu assay. The P. edulis extract, in different doses, was administered by gavage 1 h prior to inflammation induction by carrageenan (8 mg/kg, i.p.); five hours later, the neutrophils were obtained by intraperitoneal lavage. The tests performed in neutrophils were cytochrome C and chemiluminescence assay as well as myeloperoxidase (MPO), superoxide dismutase (SOD), glutathione peroxidase (GPx) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passiflora edulis Sims; Inflammation; Neutrophil; Reactive oxygen species (ROS); Antioxidant enzymes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100562

Development of amphotericin b Based organogels against mucocutaneous fungal infections
Provedor de dados: 60
Autores: Gopalan,Kavya; Jose,Jobin.
Amphotericin B is a broad spectrum antifungal agent used to treat fungal infections. Organogel is a semisolid preparation in which the apolar phase gets immobilized within spaces of the three-dimensional structure. The current study aimed at the formulation and comparative evaluation of sorbitan monostearate organogels and pluronic lecithin organogels (PLO). Different compositions of span 60 based organogels were prepared by varying the concentrations of the span 60 and PLO gels were prepared by varying the concentration of Pluronic F 127. The developed organogels were subjected to various characteristics such as pH, viscosity, spreadability, extrudability, and drug release studies. The optimized formulations were evaluated against Candida albicans and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphotericin B; Organogel; Span 60; Pluronic F127; Lecithin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100563

Novel Eudragit® -based polymeric nanoparticles for sustained release of simvastatin
Provedor de dados: 60
Autores: Rodrigues,Deborah Fernandes; Couto,Renê Oliveira do; Sinisterra,Rubén Dario; Jensen,Carlos Eduardo de Matos.
This paper reports on the development of nanoparticles aiming at the in vitro controlled release of simvastatin (SVT). The nanoparticles were prepared by the nanoprecipitation method with polymers Eudragit® FS30D (EDGFS) or Eudragit® NE30D (EDGNE). EDGFS+SVT nanoparticles showed mean size of 148.8 nm and entrapment efficiency of 76.4%, whereas EDGNE+SVT nanoparticles showed mean size of 105.0 nm and entrapment efficiency of 103.2%. Infrared absorption spectra demonstrated that SVT incorporated into the polymer matrix, especially EDGNE. Similarly, the differential scanning calorimeter (DSC) curve presented no endothermic peak of fusion, indicating that the system is amorphous and the drug is not in the crystalline state. The maintenance of SVT in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Simvastatin; Nanoparticles; Poly-methylmethacrylate; Dissolution; Drug delivery systems.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100591

Synergistic effect of sertraline and disulfiram against multidrug resistant bacteria as a new alternative to drug repositioning
Provedor de dados: 60
Autores: Serafin,Marissa Bolson; Bottega,Angelita; Foletto,Vitória Segabinazzi; Rosa,Taciéli Fagundes da; Rampelotto,Roberta Filipini; Carvalho,Fernanda Aguirre; Hörner,Rosmari.
The repositioning of approved drugs is atopic of interest for the academy and the pharmaceutical industry. The synergistic combination of these drugs can be successful in the treatment of infections caused by resistant bacteria. This study aimed to assess the in vitro synergistic antibacterial activity of sertraline and disulfiram and their interaction with ciprofloxacin and sulfamethoxazole/trimethoprim. We determined the minimum inhibitory concentration, the minimum bactericidal concentration and the fractional inhibitory concentration index. Eighteen bacterial strains were used, being nine American Type Culture Collection reference strains and nine multidrug resistant clinical isolates. Synergy was detected between sertraline and disulfiram against a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sertraline; Disulfiram.Antimicrobial activity; Drug synergism; Drug repositioning.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100548

PAK6: a potential anti-cancer target
Provedor de dados: 60
Autores: Gong,Chan-Chan; Li,Tong-Tong; Pei,Dong-Sheng.
p21-activated kinase 6 (PAK6) is a member of the PAK family of serine/threonine kinases that are known effectors of Rho GTPases Cdc42 and Rac. PAKs regulate a large number of complex cellular mechanisms, including cell motility, morphology, and tumor development. PAK6, initially cloned as an interacting partner of the androgen receptor (AR), is associated with an array of cellular processes implicated in tumor progression. However, the full biological implications of PAK6 activity during cancer remain poorly understood. In this review, we assess our current understanding of the physiological roles of classical PAK6 functionality in mammals, in addition to its emerging role in tumorigenesis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: PAK6; Androgen Receptor (AR); Cancer therapy; MiRNAs.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100700

Preparation and characterization of naftifine-loaded poly(vinyl alcohol)/sodium alginate electrospun nanofibers
Provedor de dados: 60
Autores: Esentürk,İmren; Balkan,Timuçin; Güngör,Sevgi; Saraç,Sezai; Erdal,Meryem Sedef.
In this study, naftifine (a topical antifungal drug) loaded poly(vinyl) alcohol (PVA)/sodium alginate (SA) nanofibrous mats were prepared using the single-needle electrospinning technique. The produced nanofibers were crosslinked with glutaraldehyde (GTA) vapor. The morphology and diameter of the electrospun nanofibers were studied by scanning electron microscopy (SEM). SEM images showed the smoothness of the nanofibers and indicated that the fiber diameter increased with crosslinking and drug loading. Atomic force microscopy (AFM) images confirmed the uniform production of the scaffolds, and elemental mapping via energy dispersive X-ray spectroscopy (EDS) showed the uniform distribution of the drug within the nanofibers. An attenuated total reflectance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Naftifine; Nanofibers; Electrospinning; Topical drug delivery.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100606

Antinociceptive activity of Thyme (Thymus vulgaris L.) and interactions with neurotropics and analgesics
Provedor de dados: 60
Autores: Rašković,Aleksandar Lazar; Kvrgić,Maja Petar; Tomas,Ana Drago; Stilinović,Nebojša Petar; Čabarkapa,Velibor Spasoje; Stojšić-Milosavljević,Anastazija Ðurica; Kusturica,Milica Nada Paut; Rakić,Dušica Branko.
The plant world represents an important source of potential therapeutic agents, but concomitant administration of herbal and conventional medications may result in interactions with subsequent beneficial or adverse effects. This study was designed to examine the analgesic effect of thyme tincture and thyme syrup, two commonly used thyme formulations, and their interactions with codeine, paracetamol, pentobarbital and diazepam in mice. The identification and quantification of thymol and carvacrol were carried out by GC/MS and GC/FID. The analgesic activity was studied using a hot plate method. Effects of thyme syrup on diazepam-induced motor coordination impairment in rotarod test and on pentobarbital-induced sleeping time were also determined. Thymol...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thymus vulgaris; Hot plate; Analgesic; Interactions; Pentobarbital; Diazepam.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100634

Is the efflux pump inhibitor Verapamil a potential booster for isoniazid against Mycobacterium tuberculosis?
Provedor de dados: 60
Autores: Amaral,Renata Claro Ribeiro do; Caleffi-Ferracioli,Katiany Rizzieri; Demitto,Fernanda de Oliveira; Almeida,Aryadne Larissa de; Siqueira,Vera Lucia Dias; Scodro,Regiane Bertin de Lima; Leite,Clarice Queico Fujimura; Pavan,Fernando Rogério; Cardoso,Rosilene Fressatti.
The membrane-based efflux pump systems are recognized to have an important role in pathogenicity and drug resistance in Mycobacterium tuberculosis by the extrusion of toxic substrates and drugs from the inner bacillus. This study aimed to investigate the in vitro interaction of Verapamil (VP), an efflux pump inhibitor, with the classical first-line anti-tuberculosis drug isoniazid (INH) in resistant and susceptible M. tuberculosis clinical isolates. Seven multidrug-resistant (MDR), three INH monoresistant and four susceptible M. tuberculosis clinical isolates were tested for the INH and VP combination by modified Resazurin Microtiter Assay Plate (REMA). Fractional Inhibitory Concentration (FIC) and Modulation Factor (MF) were determined. The INH plus VP...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; Multidrug-resistance; Efflux pumps; Efflux pumps inhibitors; Isoniazid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100588

Ion-pairing liquid chromatographic method determination of ketoconazole and stress degradation in pharmaceutical formulations with fluorescence detection
Provedor de dados: 60
Autores: Thongchai,Wisanu.
Ion-pairing liquid chromatographic method was validated for determination of ketoconazole in shampoo and cream samples as per ICH guidelines. The chromatographic conditions were carried out in the isocratic mode using a mixture of methanol and 8 mM sodium dodecyl sulfate (pH 5.5) in a ratio of 45:55 v/v %, as mobile phase. The flow rate was set at 1.0 mL min-1. Chromolith RP-18e (100×4.6 mm) was used as the analytical column with a fluorescence detection at an excitation wavelength of 260 nm and an emission wavelength of 375 nm. The average percentage recovery of shampoo A, shampoo B, shampoo C, cream A and cream B were 99.88, 97.06, 99.58, 96.77 and 97.26, respectively. The limit of detection was 0.12 mg L-1. The drug decomposition under acid degradation,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ion-pairing liquid chromatography; Ketoconazole; Shampoo; Cream; Fluorescence detection.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100538

Polymeric micelles containing resveratrol: development, characterization, cytotoxicity on tumor cells and antimicrobial activity
Provedor de dados: 60
Autores: Almeida,Tamires Cunha; Seibert,Janaina Brandão; Almeida,Sávio Henrique de Souza; Amparo,Tatiane Roquete; Teixeira,Luiz Fernando de Medeiros; Barichello,Jose Mario; Postacchini,Bruna Bueno; Santos,Orlando David Henrique dos; Silva,Glenda Nicioli da.
Antimicrobial and antitumor activities of resveratrol, a compound found mainly in grapes, have already been demonstrated. However, its low bioavailability is a limiting factor for therapeutic application. Polymeric micelles can be an approach to solve this problem since they can encapsulate hydrophobic substances. We developed and characterized micellar formulations containing resveratrol and evaluated their cytotoxic and antimicrobial effects. The formulations were prepared by the cold dispersion method with different concentrations of F127 (5 or 10% w/w) and resveratrol (500 or 5000 µM). The formulations were characterized according to size, polydispersity index, pH, encapsulation rate and in vitro release. Cytotoxic effect was evaluated on a bladder...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial activity; Cytotoxic activity; F127®; Polymeric micelles; Resveratrol.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100567

PLGA-corosolic acid implants for potential application in ocular neovascularization diseases
Provedor de dados: 60
Autores: Toledo,Cibele Rodrigues; Pereira,Vinícius Viana; Andrade,Gracielle Ferreira; Silva-Cunha,Armando.
Angiogenesis is the formation of new blood vessels from preexisting vasculature. Uncontrolled angiogenesis is associated with progression of several ocular pathologies, such as diabetic retinopathy and macular degeneration. Thus, the inhibition of this process consists in an interesting therapeutic target. Corosolic acid (CA) is a natural derivative of ursolic acid, found in many medicinal herbs and exhibits numerous biological properties, including the antiangiogenic activity. The present study reports the production of CA-loaded poly d,l-lactidecoglycolide acid (PLGA) devices by melt technique. HPLC-UV method was developed and validated to evaluate the uniformity and the release profile of the developed systems. The devices were also characterized by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corosolic acid; PLGA; Antiangiogenic activity; Implant.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100569

Prevalence, predictors and outcomes of potential drug-drug interactions in left ventricular failure: considerable factors for quality use of medicines
Provedor de dados: 60
Autores: Haq,Inamul; Ismail,Mohammad; Khan,Fahadullah; Khan,Qasim; Ali,Zahid; Noor,Sidra.
Hospitalized patients with left ventricular failure (LVF) are at high risk for potential drug-drug interactions (pDDIs) and its related adverse effects owing to multiple risk factors such as old age, comorbidities and polypharmacy. This cross-sectional study conducted in two tertiary care hospitals aim to identify frequency, levels and predictors of pDDIs in LVF patients. Data about patients’ demographic, hospital stay, medication therapy, sign/symptoms and laboratory test results were collected for 385 patients with LVF. Micromedex Drug-Reax® was used to screen patients’ medication profiles for pDDIs. Overall prevalence and severity-wise prevalence of pDDIs were identified. Chi-square test was performed for comparative analysis of various variables....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Left ventricular failure; Heart diseases; Potential drug-drug interactions; Drug interactions; Patients safety; Rational drug use.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100589

Stability of hydroalcoholic extracts of two species of guaco; Mikania glomerata SPRENG. and Mikania laevigata SCHULTZ. (Asteraceae), by UHPLC-MS
Provedor de dados: 60
Autores: Melo,Lucilia Vilela de; Sawaya,Alexandra Christine Helena Frankland.
It is important to study the stability of plant extracts used as active ingredients in phytotherapic medicine, as degradation of the active principles directly affects the efficacy and safety of these products. Therefore, a stability study of the hydroalcoholic extract of the species: Mikania glomerata and Mikania laevigata was conducted in order to determine the speed of degradation and shelf life of these extracts, which are incorporated in cough syrup in Brazil. Leaves of both species were dried in an oven or by lyophilization (freeze-dried). Hydroalcoholic extracts underwent both accelerated stability study of six months and long-term stability study for 12 months. Samples were stored at different temperatures and every three months were analysed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mikania glomerata Spreng.; Mikania laevigata Sch; Bip ex Baker; Guaco; Ultra-high performance liquid chromatography-mass spectrometry; Stability test; Coumarin; Chlorogenic acid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100584

Radioprotective profile of Urtica dioica L. seed extract on oxidative DNA-damage in liver tissue and whole blood of radiation-administered rats
Provedor de dados: 60
Autores: Çakır,Tahir; Yıldızhan,Kenan; Huyut,Zübeyir; Uyar,Ahmet; Arıhan,Okan.
It was aimed to investigate the radioprotective activity of Urtica dioica L. seed extract (UDSE) in the whole blood and liver of radiation-administered rats, both biochemically and immunohistochemically. 32 rats were divided into 4 groups (n:8). Control group (C): no administration for 10 days. Radiation group (IR): fed pellets for 10 days after exposure to radiation. Radiation + UDSE (IR+UDSE) group: exposed to radiation and fed UDSE for 10 days. UDSE group (UDSE): fed UDSE for 10 days. Radiation (5Gy) was given as a single fraction. 8-hydroxy-2-deoxyguanosine (8-OHdG) and deoxyguanosine (dG) levels were analyzed by biochemical method and glutathione peroxidase 1 (GPx-1) analyses were performed by immunohistochemical method in the liver and blood tissues...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Radioprotective; DNA damage; Antioxidant; Urtica.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100558

Micro and nanocrystalline cellulose based oral dispersible film; preparation and evaluation of in vitro/in vivo rapid release studies for donepezil
Provedor de dados: 60
Autores: AnjiReddy,Keshireddy; Karpagam,Subramanian.
Oral fast-dispersible film was prepared by utlizing donepezil hydrochloride (drug) and various cellulose derivatives such as hydroxypropyl methyl cellulose (hypermellose) (HPMC), microcrystalline cellulose (MCC) and nanocrystalline cellulose (NCC) to treat Alzheimer’s disease. NCC was synthesized by ultra-sonication method using MCC and this was converted to thinfilm formulation (NCC-F) using solvent casting technique. The interaction between the polymer and the drug was investigated by spectral analysis such as UV, FTIR, and 1H- NMR. FTIR confirmed that the compatibility of drug and polymer in ODF formulation. NCC-F has shown an average surface roughness of 77.04 nm from AFM and the average particle size of 300 nm from SEM analysis. Nano sized particle of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oral dispersible film; Nanocrystalline cellulose; Ultrasonication; 3D atomic force microscopy; Donepezil; Solvent casting; Alzheimer’s disease.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100586

Extract of Solidago chilensis Meyen inflorescences: cytotoxicity and inhibitory activity on nitric oxide synthesis in activated macrophage cell line J774A.1
Provedor de dados: 60
Autores: Brito,Thais Morais de; Amendoeira,Fabio Coelho; Oliveira,Temistocles Barroso de; Frutuoso,Valber da Silva; Ferraris,Fausto Klabund; Valverde,Simone Sacramento.
Solidago chilensis Meyen (= Solidago microglossa) popularly known as “Brazilian arnica” is used to treat of inflammatory disorders. S. chilensis is constant in the Therapeutic Memento of the Rio de Janeiro city and belongs to the medicinal species of Brazilian National List of Medicinal Plants of Interest of the Unified National Health System (SUS). There are no studies in the literature showing the direct activity of this plant species on immune system cells. The present study evaluated the chemical composition as well as the cytotoxic and pharmacological activity of the ether-ethanol extract from S. chilensis inflorescences (SCIE) in murine macrophage cell line J774A.1. The results showed that higher concentrations (50 to 200 µg/mL) of SCIE had...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anti-inflammatory activity; Medicinal plant; Asteraceae; Diterpenes; Flavonoids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100594

Utilization of [Bmim]BF4-MAE on enhancement of γ-oryzanol extraction from rice bran and its tyrosinase inhibitory activity
Provedor de dados: 60
Autores: Arrahman,Arif; Sigalingging,Efendy; Trinovita,Elsa; Saputri,Fadlina Chany; Mun'im,Abdul.
This study investigated the effect of ionic liquid (IL)-microwave assisted extraction (MAE) on γ-oryzanol extraction from rice bran (Oryza sativa L.). The conditions included the concentration of IL, liquid (IL)/solid (sample) ratio, extraction time, and microwave power. The use of 1-butyl-3-methylimidazolium ([Bmim]BF4) as a selected solvent in IL-MAE method was developed for extraction of γ-oryzanol from rice bran. The Box-Behnken design on four factors with response surface methodology (RSM) was used to optimize the experimental conditions. The optimum conditions for the MAE were a [Bmim]BF4 concentration of 0.7 M, liquid/solid ratio of 15 mL/g, extraction time of 10 minutes, and 30% microwave power with a γ-oryzanol value of 0.41 mg/g. The experimental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: [Bmim]BF4; Ionic liquid; IL-MAE; Γ-oryzanol; Tyrosinase.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100549

Esculetin as bioactive marker: towards a rational scientific approach for the treatment of hyperuricemia using Traditional Chinese Medicine
Provedor de dados: 60
Autores: Zuo,Jieyu; Zhang,Wugang; Jian,Hui; Bou-Chacra,Nádia; Löbenberg,Raimar.
Traditional Chinese Herbal Medicine has been used to prevent and cure disease in China for thousands of years and has gained global interest in recent decades. The Erding formula is a Chinese Pharmacopeia (ChP)-listed herbal preparation used for treating sore throat, carbuncles and boils. Esculetin is a ChP quality control (QC) marker for these indications. A previous study found that a new indication, hyperuricemia, can be added to the Erding formula. Therefore, this study aimed to evaluate whether the traditionally used marker, esculetin, still has bioactivity for hyperuricemia, which is substantially different from the original indications. The study analyzed the quantity of esculetin by high-performance liquid chromatography, assessed the therapeutic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Esculetin; Erding granules; Traditional Chinese Herbal Medicine; Bioactive marker.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100518

Quantification of chlorogenic acid, rosmarinic acid, and caffeic acid contents in selected Thai medicinal plants using RP-HPLC-DAD
Provedor de dados: 60
Autores: Chaowuttikul,Chayanon; Palanuvej,Chanida; Ruangrungsi,Nijsiri.
The chlorogenic acid, rosmarinic acid, and caffeic acid contents in 100 selected plants were determined using reversed phase high performance liquid chromatography equipped with diode array detector. The optimum condition was 0.2% phosphoric acid in water (solvent A) and methanol (solvent B) as the mobile phase, which was set at 45% B for 20 minutes at a flow rate of 1.2 mL/min. The column temperature was maintained at 30 ºC and the detection wavelength was 325 nm. Among 100 selected plants, 39.64% contained all 3 compounds, 40.54% contained 2 compounds, 14.41% contained only 1 compound, and 5.41% could not detect any of the 3 compounds. The highest contents of chlorogenic acid, rosmarinic acid, and caffeic acid were found in Lonicera japonica flowering...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorogenic acid; Rosmarinic acid; Caffeic acid; RP-HPLC-DAD; Medicinal plant.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100507

Synthesis of novel papulacandin D analogs and evaluation of their antifungal potential
Provedor de dados: 60
Autores: Bretas,Ana Carolina Oliveira; Souza,Thiago Belarmino de; Borelli,Beatriz; Johan,Suzana; Alves,Ricardo José.
Systemic fungal infections are a growing problem in contemporary medicine and few drugs are licensed for therapy of invasive fungal infections. Differences between fungi and humans, like the presence of a cell wall in fungal cells, can be explored for designing new drugs. (1,3)-β-D-glucan synthase, an enzyme that catalyzes the synthesis of (1,3)-β-D-glucan, a structural and essential component of the fungal cell wall, is absent in mammals and this makes it an excellent target for the development of new antifungal agents. Papulacandins are a family of natural antifungal agents targeting (1,3)-β-D-glucan synthase. In this study we describe the synthesis and biological evaluation of two new Papulacandin analogs as potential (1,3)-β-D-glucan synthase inhibitors.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Β-(1; 3)-D-glucan synthase Antifungal activity Papulacandin D Molecular simplification.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100509

Towards the cosmetic application of Passiflora coccinea (Aubl.): antioxidant activity and photo protective capacity of the methanolic and glycolic leaf extracts
Provedor de dados: 60
Autores: Silva,Gisláine Correa da; Salvador,Marcos José; Bottoli,Carla Beatriz Grespan.
The present study aimed at the evaluation of Passiflora coccinea (Aubl.) antioxidant and photo protective in vitro activities, looking forward to their application as antiaging or sunscreen agents in cosmetic formulations. Methanolic and glycolic leaf extracts were prepared by three methods: ultrasound assisted extraction (UAE, 30 min.), maceration at room temperature (72 h) and maceration at 30 ºC (72 h). The antioxidant activities of the extracts were measured by DPPH and ORAC-FL assays and they were incorporated into a cosmetic emulsion to have their sun protection factor (SPF) measured spectrophotometricaly. The antioxidant activity of the emulsions were measured by DPPH and ORAC as well. C-glycosyl-flavones were identified in the extracts by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passiflora coccinea; Emulsion; Antioxidant; SPF; Isovitexin; HPLC-DAD.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100511

Widespread use of anti-retroviral therapy elevated the prevalence of dyslipidemia in HIV-infected Chinese patients
Provedor de dados: 60
Autores: Ye,He; Hong,Yu Min; Jing,Song Xiao; Hui,Yang; Juan,Zhang Xiao; Wei,Zhao Yan.
With the widespread use of high-efficiency antiretroviral therapy (HAART), the life expectancy of HIV-infected patients has been significantly extended. However, the metabolic complications among HIV-infected patients treated with HAART have become the most common problem in the world. It is very important to explore the incidence of dyslipidaemia and studies on the role of potential risk factors in HIV-infected Chinese patients treated with HAART are sparse. Therefore, we designed current study, to investigate the effects of therapeutic intervention and continuous information support on the lifestyle of HIV/AIDS patients with dyslipidaemia. Three hundred and six HIV/AIDS patients admitted to the AIDS clinic in Beijing from January 2016 to January 2017...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metabolic Complications; Lipid; Dyslipidaemia; HIV; HAART.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100636

Safe-by-design development of a topical patch for drug delivery
Provedor de dados: 60
Autores: Vaz,Mafalda. B.; Vitorino,Carla; Sousa,João J. S.
Few topical products have been developed specifically to treat acute and chronic arthritis and inflammation, using non-steroidal anti-inflammatory drugs (NSAIDs). The lack of dosing accuracy commonly found in locally applied semisolid products for cutaneous use is a critical issue that leads to treatment failure. The aim of the present work is to develop a differentiated and innovative topical patch based on a monolithic hydrogel for ibuprofen skin delivery, in order to provide a safer and accurate way of drug administration along with improved treatment compliance. Topical patches based on hydroxypropylmethylcellulose (HPMC) were optimized in composition, in terms of enhancer and adhesive, supported on a systematic assessment of in vitro release and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Topical patches; Ibuprofen; Mechanical properties; Permeation studies; Safe-by-design.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100626

A nanoemulsion-based delivery system for imatinib and in vitro anticancer efficacy
Provedor de dados: 60
Autores: Karimi,Maryam; Karimian,Khashayar; Heli,Hossein.
A self-nanoemulsifying drug delivery system (SNEDDS) composed of ethyl oleate, Tween 80 and polyethylene glycol 600 was prepared as a new route to improve the efficacy of imatinib. The drug-loaded SNEDDS formed nanodroplets of ethyl oleate stabilized by Tween 80 and polyethylene glycol 600 with a diameter of 81.0±9.5 nm. The nanoemulsion-based delivery system was stable for at least two months, with entrapment efficiency and loading capacity of 16.4±0.1 and 48.3±0.2%, respectively. Imatinib-loaded SNEDDS was evaluated for the drug release profiles, and its effectiveness against MCF-7 cell line was investigated. IC50 values for the imatinib-loaded SNEDDS and an imatinib aqueous solution were 3.1 and 6.5 µg mL-1, respectively.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glivec; Nanoemulsion; Anticancer drug; Bioavailability; Breast cancer cell.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100640

Piroxicam voltammetric determination by ultra low cost pencil graphite electrode
Provedor de dados: 60
Autores: Macêdo,Isaac Yves Lopes de; Alecrim,Morgana Fernandes; Oliveira Neto,Jerônimo Raimundo; Torres,Ieda Maria Sapateiro; Thomaz,Douglas Vieira; Gil,Eric de Souza.
Piroxicam (PRX) was determined in pharmaceutical capsules with differential pulse voltammetry (DPV) in a three electrode system consisting of a pencil graphite electrode (PGE) as working electrode, a Pt wire and a reference electrode of Ag/AgCl/KCl 3 M. An irreversible oxidation peak was observed in Epa c.a. 0.6 V, which correlates to the oxidation of PRX. The coefficient of linear correlation obtained was 0.9946, with limit of detection of 2.1 µM and limit of quantification of 4.7 µM. PGE assays showed good analytical performance compared to high performance liquid chromatography and spectrophotometry, showing the potential to be further developed and employed in quick and simple analyses.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Electroanalysis; Pencil graphite electrode; Piroxicam; Voltammetry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100504

A conglomeration of preclinical models related to myocardial infarction
Provedor de dados: 60
Autores: Ahsan,Farogh; Mahmood,Tarique; Usmani,Shazia; Bagga,Paramdeep; Shamim,Arshiya; Tiwari,Reshu; Verma,Neeraj; Siddiqui,Mohammed Haris.
Cardiovascular diseases are the main source of death and morbidity in developed and developing nations. Animal models are required to propel our understanding of the pathogenesis, increase our knowledge, disease progress, and mechanism behind cardiovascular disorder, providing new approaches focused to improve the diagnostic and the treatment of these pathological conditions and additionally to test various therapeutic ways to deal with tissue regeneration and re-establish heart working following damage. A perfect model framework ought to be reasonable, effectively controlled, reproducible, and physiologically illustrative of human disease, show cardinal signs and pathology that resembles after the human ailment and ethically stable. The decision of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myocardial infarction; Animal model; Isoproterenol; Chemical induced; Ischeamia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100557

Preparation of extemporaneous oral liquid in the hospital pharmacy
Provedor de dados: 60
Autores: Silva,Márcio Robert Mattos da; Dysars,Letícia Pereira; Santos,Elisabete Pereira dos; Ricci Júnior,Eduardo.
At the hospital, the pharmacist is constantly challenged to prepare extemporaneous solutions from tablets, capsules or drug powder for patients unable to swallow, such as pediatric, elderly and patients that use nasoenteric and nasogastric tubes. The preparation of extemporaneous solutions from capsules, tablets and drug powder requires stability studies analysis. This article is a bibliographic review of preparation of extemporaneous oral liquid from solid oral dosage forms used in clinical practice. The selected articles contain all the information regarding manipulation techniques, pharmaceutical excipients, packaging, storage conditions and results of stability studies above 90% performed by HPLC analysis. In addition, a situational analysis of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Extemporaneous oral liquid; Stability; Hospital pharmacy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100703

Biological activity of synthesized 5-{1-[(4-chlorophenyl)sulfonyl]piperidin-4-yl}-2-mercapto-1,3,4-oxadiazole derivatives demonstrated by in silico and BSA binding studies
Provedor de dados: 60
Autores: Iqbal,Javed; Rehman,Aziz-ur-; Abbasi,Muhammad Athar; Siddiqui,Sabahat Zahra; Rasool,Shahid; Ashraf,Muhammad; Iqbal,Ambar; Hamid,Sujhla; Chohan,Tahir Ali; Khalid,Hira; Laulloo,Sabina Jhaumeer; Shah,Syed Adnan Ali.
We synthesized a series of compounds bearing pharmacologically important 1,3,4-oxadiazole and piperidine moieties. Spectral data analysis by 1H-NMR, 13C-NMR, IR and EI-MS was used to elucidate the structures of the synthesized molecules. Docking studies explained the different types of interaction of the compounds with amino acids, while bovine serum albumin (BSA) binding interactions showed their pharmacological effectiveness. Antibacterial screening of these compounds demonstrated moderate to strong activity against Salmonella typhi and Bacillus subtilis but only weak to moderate activity against the other three bacterial strains tested. Seven compounds were the most active members as acetyl cholinesterase inhibitors. All the compounds presented...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 1; 3; 4-Oxadiazole Acetylcholinesterase (AChE) inhibition Antibacterial activity Piperidine Sulfonamide Urease inhibition.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100596

Medication use by adults in greater Manaus: a population-based cross-sectional study, 2015
Provedor de dados: 60
Autores: Lima,Vanessa Gomes; Silva,Marcus Tolentino; Galvão,Taís Freire.
The use of medicines can be an indicator of healthcare access. Our aim was to evaluate the consumption of medicine and associated factors among adults in Manaus Metropolitan Region, located in the north of Brazil. A cross-sectional population-based study was conducted with adults, ≥18 years old, selected by probabilistic sampling. The outcome was the use of medicine in the previous 15 days. Poisson regression with robust variance was used to calculate the prevalence ratio (PR) of medicine consumption, with 95% confidence interval (CI). Use of medicines was reported by 29% (95% CI: 28-31%) of the participants. People with good (PR: 0.82, 95% CI: 0.72-0.94) and fair (PR: 0.77, 95% CI: 0.65-0.90) health status were shown to use less medication than those with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Medication use; Cross-Sectional Studies; Adult; Manaus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100630

Nonadherence to treatment recommendations is a factor contributing to the clinical failure of daptomycin: Cohort study in Brazil
Provedor de dados: 60
Autores: Martins,Tathiana Silva de Souza; Figueras,Albert; Souza,Luana dos Reis de; Santos,Keila Cristina Oliveira dos; Oliveira,Elaine Machado de; Secoli,Silvia Regina.
To evaluate the clinical outcomes of daptomycin therapy and adherence to treatment recommendations, a retrospective cohort study was conducted with patients that received daptomycin during the period of the study. The adherence and nonadherence to clinical guidelines were assessed through organism identification, dose and time of treatment, management of bacteremia, and vancomycin treatment failure. A multiple logistic regression model analyzed the association between independent variables and clinical success (dependent variable), considering 5% of statistical significance. The study presented 52 patients who received daptomycin for the treatment of bacteremia (21.1%) or infections (osteomyelitis [63.5%], synovial fluid [15.4%]). Most patients (86.5%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daptomycin; Post marketing; Gram-positive bacterial infections; Orthopedic.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100583

Effects of treatment with sitagliptin on hepatotoxicity induced by acetaminophen in mice
Provedor de dados: 60
Autores: Hewedy,Wafaa Ahmed.
Up to date, the management of hepatotoxicity induced by a suicidal or unintentional overdose of acetaminophen (APAP) remains a therapeutic challenge. The present study aimed to elucidate the potential effect of sitagliptin, a DPP-4 inhibitor, to ameliorate the acute injurious effects of acetaminophen on the liver. APAP toxicity was induced in mice by an intraperitoneal injection of APAP (400 mg/kg). The effect of treatment with sitagliptin, initiated 5 days prior to APAP injection, was evaluated. Serum indices of hepatotoxicity, oxidative stress markers in liver tissues, serum IL-1β, and TNF-α in addition to hepatic- NF-E2-related factor-2 (Nrf2) were determined. Our results showed that APAP induced marked hepatic injury as evidenced by an increase in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetaminophen; Dipeptidyl peptidase-4 inhibitors; Hepatotoxicity; Nrf2; Sitagliptin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100610

Clinacanthus nutans: Its potential against diabetic vascular diseases
Provedor de dados: 60
Autores: Azemi,Ahmad Khusairi; Mokhtar,Siti Safiah; Rasool,Aida Hanum Ghulam.
Diabetes is an independent risk factor for the development of cardiovascular disease, with approximately 80% of cardiovascular mortality and morbidity linked to vascular complications such as atherosclerosis. It has been estimated that up to one-third of patients with diabetes mellitus use some form of complementary and/or alternative medicine. One plant that has received attention from diabetic patients for its perceived antidiabetic properties is Clinacanthus nutans, a member of the Acanthaceae family that is known as snake grass. Ethnomedical applications of this herb have been identified for the treatment of certain conditions, including fever, diabetes, skin rashes, and insect bites. This review aims to assess the potential of C. nutans to be used in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: C. nutans; Diabetes; Inflammation; Cardiovascular disease.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100635

Comparative analyses of response surface methodology and artificial neural networks on incorporating tetracaine into liposomes
Provedor de dados: 60
Autores: Pereira,Ana Karina Vidal; Barbosa,Raquel de Melo; Fernandes,Marcelo Augusto Costa; Finkler,Leandro; Finkler,Christine Lamenha Luna.
This study evaluated the incorporation of tetracaine into liposomes by RSM (Response Surface Methodology) and ANN (Artificial Neural Networks) based models. RCCD (rotational central composite design) and ANN were performed to optimize the sonication conditions of particles containing 100 % lipid. Laser light scattering was used to perform measure hydrodynamic radius and size distribution of vesicles. The liposomal formulations were analyzed by incorporating the drug into the hydrophilic phase or the lipophilic phase. RCCD and ANN were conducted, having the lipid/cholesterol ratio and concentration of tetracaine as variables investigated and, the encapsulation efficiency and mean diameter of the vesicles as response variables. The optimum sonication...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Local anesthetics; Liposomes; Response Surface Methodology; Artificial Neural Networks.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100517

Nesiritide protects endothelial function after balloon-induced trauma in the iliac artery in rabbits
Provedor de dados: 60
Autores: Liu,Shu-Qin; Zhang,Li-Ping; Yan,Huan-Ying; Zhang,Xing-Hua; Wang,Le-Xin.
To assess the effect of nesiritide on the endothelial function of iliac arteries following endothelia trauma. Right iliac artery trauma was created with a balloon catheter. Ten rabbits were treated with a 4-week subcutaneous injection of nesiritide at a fixed daily dose of 0.1mg/kg. Ten rabbits received daily normal saline injection. Plasma endothelin 1 (ET-1), nitric oxide (NO), and Von Willebrand Factor (vWF) were measured before and after the therapies. Tissue proliferating cell nuclear antigen (PCNA) was measured after the treatment. After the treatment, in the therapeutic group, the area under internal elastic membrane and the residual lumen area were higher than in the normal saline group (P &lt;0.05). The plasma levels of ET-1 (91.6±6.8 vs 114.9±6.3...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plasma endothelin (ET-1); Nitric oxide (NO); Von Willebrand Factor (vWF); Tissue proliferating cell nuclear antigen; Iliac artery.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100568

Costus root aqueous extract modulates rat liver toxicity, DNA damage, injury, proliferation alterations induced by plant growth regulator Ethephon
Provedor de dados: 60
Autores: Tousson,Ehab; El-Atrsh,Afaf; Mansour,Merfaat; Assem,Abdallah.
Ethephon (Ethrel®) is an ethylene-based plant growth regulator that used in agriculture and it has direct and indirect effects on human health, direct effect via its inhalation during usage in agriculture and indirect effect through the diet (Fruits and vegetables) that is sprayed with it. The current study aimed to examine the possible modifying effects of costus (Saussurea lappa) root aqueous extract against Ethephon induced liver toxicity, injury, DNA fragmentation and PCNA alterations in male rats. Fifty adult male rats were divided into 5 groups (1st, control; 2nd, Costus; 3rd, Ethephon; 4th, Post treated Ethephon with costus; 5th, self-healing Ethephon). Current results revealed that; a significant increase in aspartate transaminase (AST), alanine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant growth regulator; Ethephon; Costus; Liver; DNA damage; PCNA expression; Rat.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100600

Safety and tolerability of a single dose T0001 in Chinese healthy adult volunteers: a first-in-human ascending dose study
Provedor de dados: 60
Autores: Zhang,Tan; Zhang,Minjie; Zu,Li’an; Wang,Qian; Wang,Qi; Wang,Wei; Wang,Yitong; Zang,Yannan; Xie,Zhenwei; Chen,Shi; Wang,Mei; Zheng,Qingshan; Li,Zhanguo; Chen,Guihong; Fang,Yi.
T0001 is the first mutant of etanercept with a higher affinity to tumor necrosis factor α (TNF-α) than etanercept. In order to investigate the safety and tolerability of T0001, a study was carried out in healthy Chinese subjects. A first-in-human, dose escalation study was conducted in healthy Chinese subjects. Fifty-six subjects were divided into six dose cohorts (10 mg, 20 mg, 35 mg, 50 mg, 65 mg and 75 mg) to receive a single subcutaneous injection of T0001. Safety and tolerability assessment were based on the records of vital signs, physical examinations, clinical laboratory tests, 12-lead electrocardiograms and adverse events (AEs). All subjects were in good compliance and none withdraw due to AEs. No serious AEs occurred. A total of twenty-three AEs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: T0001; TNF-α; Rheumatoid arthritis; Safety; Tolerability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100598

Chiral discrimination of amlodipine from pharmaceutical products using capillary electrophoresis
Provedor de dados: 60
Autores: Cârcu-Dobrin,Melania; Sabău,Alexandra Georgiana; Hancu,Gabriel; Árpád,Gyéresi; Rusu,Aura; Kelemen,Hajnal; Papp,Lajos Attila; Cârje,Anca.
The present work describes the development of a capillary electrophoresis (CE) method for the chiral discrimination of amlodipine (AML) enantiomers using cyclodextrine (CD) derivatives as chiral selectors. A large number of native and derivatized, neutral and ionized CD derivatives were screened to find the optimal chiral selector; and carboximethyl-β-CD (CM-β-CD) was selected for the enantiomeric discrimination. A factorial analysis study was performed by orthogonal experimental design in which several factors were varied at the same time to optimize the separation method. The optimized method (25 mM phosphate buffer, pH = 9.0, 15 mM CM-β-CD, 15 ºC, + 25 kV, 30 mbar/1 second, detection wavelength 230 nm) was successfully applied for the baseline...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amlodipine; Capillary electrophoresis; Chiral separation; Cyclodextrine; Experimental design.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100530

Is dialysis water a safe component for hemodialysis treatment in São Paulo State, Brazil?
Provedor de dados: 60
Autores: Hilinski,Ellen Gameiro; Almodovar,Adriana Aparecida Buzzo; Silva,Fernando Pontes de Lima e; Pinto,Terezinha de Jesus Andreoli; Bugno,Adriana.
Failure on the water treatment poses hemodialysis patients at risk of injury and death. Identifying if the patients are exposed to water quality related microbiological risks is an important objective to reduce the mortality for chronic renal patients and is the main issue of this study. We evaluated the microbiological water quality used by 205 dialysis services in São Paulo State, Brazil between 2010 to 2016. The study included heterotrophic bacteria count, total coliforms research, and bacterial endotoxin determination in 1366 dialysis water samples. The number of unsatisfactory clinics for at least one microbiological parameter decreased 16.0% between 2010 to 2015 but increased 57.2% in 2016. In 2010, the most frequent unsatisfactory parameter was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemodialysis water; Endotoxin; Microbiological water quality; Hemodialysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100542

Antioxidant, antimicrobial and phytotoxic activities of Rhaponticum acaule DC. essential oil
Provedor de dados: 60
Autores: Mosbah,Habib; Sassi,Ahlem Ben; Chahdoura,Hassiba; Snoussi,Mejdi; Flamini,Guido; Achour,Lotfi; Selmi,Boulbaba.
The in-vitro antioxidant activity of Rhaponticum acaule essential oil (RaEO) was evaluated using β-carotene/linoleic acid bleaching, chelating activity, and lipid peroxidation inhibition (TBARS) assays. The antimicrobial activity of RaEO was assessed by disc diffusion and microdilution methods against 8 bacteria and 4 yeast. Finally, the allelopathic activity of RaEO on the seed germination and the shoot and root elongation of lettuce (Lactuca sativa L.) seedlings were investigated. According to our results, the RaEO exhibited significant antioxidant activity, similar to those of standards (BHT and ascorbic acid) with IC50 values of 0.042 and 0.045 mg/mL obtained by β-carotene bleaching and TBARS assays, respectively. On the other hand, despite its...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhaponticum acaule essential oil; Antioxidant activity; Antimicrobial activity; Allelopathic activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100611

Microwave-assisted synthesis and pharmacological screening of some triazolothiadiazole derivatives
Provedor de dados: 60
Autores: Gorgu,Ozge; Yıldırım,Engin; Ozkan,Yesim; Cakır,Bilge; Erol,Kevser; Onkol,Tijen.
In this study, twenty-two new [1,2,4]triazolo[3,4-b][1,3,4]thiadiazoles (5a-n, 6a-h) were synthesized under microwave irradiation (MWI). The chemical structures of the compounds were elucidated by their IR, 1H-NMR, LC-MS, and elemental analysis. The compounds were tested for antinociceptive activity by using the tail clip, tail flick, hot plate, and writhing methods in mice. The varying levels of antinociceptive activity of the compounds were compared with those of aspirin. Among these compounds, compound 5g and 5j were found to be significantly more active than the other compounds and the standard in the tests. Also, inhibitory effects of the test compounds on COX-1 and COX-2 activities were investigated. DuP-697 for COX-2 and SC-560 for COX-1 were used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2(3H)-Benzoxazolone; Triazolothiadiazole; Antinociceptive activity; Microwave-assisted synthesis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100526

New flavonoid with antidiabetic and antioxidant potential from Tetrastigma angustifolia (Roxb.) Deb leaves
Provedor de dados: 60
Autores: Junejo,Julfikar Ali; Zaman,Kamaruz; Ali,Mohammed; Rudrapal,Mithun.
Ethnomedicinal survey documents the traditional practices of Tetrastigma angustifolia leaves in the management of diabetes in the North-eastern region of India. The present study was aimed at isolation of possible antidiabetic principle(s) from T. angustifolia leaves and evaluation of antidiabetic efficacy of isolated compound(s) in experimental animal model. The methanolic extract of T. angustifolia leaves was obtained by Soxhlet extraction method and subjected to silica gel column chromatography (100-200 mesh). Fraction 18-176 chloroform:methanol (70:30) yielded a pale yellow colored compound. The structure of pure compound was elucidated with the help of UV, IR, NMR and Mass spectrometric/techniques. The antioxidant activity of the isolated compound was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: T. angustifolia; Leaves; Flavonoid; Antidiabetic; Antioxidant; Lead molecule.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100633

Antibacterial substances from leaves of Protium spruceanum (Burseraceae): in vitro and in silico evaluation
Provedor de dados: 60
Autores: Amparo,Tatiane Roquete; Rodrigues,Ivanildes Vasconcelos; Seibert,Janaína Brandão; Almeida,Tamires Cunha; Cabral,Vivette Appolinário Rodrigues; Vieira,Paula Melo de Abreu; Brandão,Geraldo Célio; Oliveira,Mauro Lúcio Gonçalves de; Silva,Glenda Nicioli da; Santos,Orlando David Henrique dos; Vieira Filho,Sidney Augusto; Teixeira,Luiz Fernando Medeiros; Souza,Gustavo Henrique Bianco de.
Due to the increase of bacterial resistance, the search for new antibiotics is necessary and the medicinal plants represent its most important source. The aim of this study was to evaluate the antibacterial property of extract and fractions from Protium spruceanum leaves, against pathogenic bacteria. By means of diffusion and microdilution assays, the crude extract was active against the nine bacteria tested being the hydromethanolic fraction the most active. During phytochemical procedures, procyanidin (1) and catechin (2) were identified as the main antibacterial constituents of this fraction. In silico results obtained using PASSonline tool indicated 1 and 2 as having good potential to interact with different targets of currently used antibiotics. These...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protium spruceanum; Burseraceae; Procyanidin; Catechin; Antibacterial activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100623

Enzyme inhibition and antibacterial potential of 4-Hydroxycoumarin derivatives
Provedor de dados: 60
Autores: Saleem,Afia; Bukhari,Syed Majid; Zaidi,Asma; Farooq,Umar; Ali,Majid; Khan,Asma; Khan,Sidra; Shah,Kausar Hussain; Mahmood,Adeem; Khan,Farhan Ahmed.
The 4-Hydroxycoumarin derivatives are known to show a broad spectrum of pharmacological applications. In this paper we are reporting the synthesis of a new series of 4-Hydroxycoumarin derivatives synthesized through Knovenegal condensation; they were characterized by using UV-Vis, FT-IR, NMR spectroscopies. The synthesized compounds were evaluated for antibacterial activity against Staphylococcus aureus and Salmonella typhimurium strains. The compounds (2), (3) and (8) showed favorable antibacterial activity with zone of inhibitions 26.5± 0.84, 26.0 ± 0.56 and 26.0 ± 0.26 against Staphylococcus aureus (Gram-positive) respectively. However, the compounds (5) and (9) were found more active with 19.5 ± 0.59 and 19.5 ± 0.32 zone of inhibitions against...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 4-Hydroxycoumarin; Anti-urease; Carbonic anhydrase; Aldehydes; Antibacterial.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100580

In vivo inhibitory effect of suberoylanilide hydroxamic acid combined with sorafenib on human hepatocellular carcinoma cells
Provedor de dados: 60
Autores: Hao,Dalin; Deng,Fang; Shi,Hong; Wang,Hongsheng; Xiao,Fubin; Sun,Chengxue; Xu,Yansong; Li,Peng.
The present study aimed to investigate the in vivo inhibitory effect of histone deacetylase inhibitor suberoylanilide hydroxamic acid (SAHA) combined with sorafenib on human hepatocellular carcinoma HCCLM3 cells. The nude mice transplanted with HCCLM3 cells were randomly divided into control, SAHA, sorafenib and SAHA+sorafenib groups. The nude mice in the later 3 groups were intragastrically administrated with SAHA (10 mg·kg-1·day-1), sorafenib (10 mg·kg-1·day-1) and SAHA (10 mg·kg-1·day-1) combined with sorafenib (10 mg·kg-1·day-1), respectively, for successive 20 days. Finally, the inhibition rate of tumor was measured. The expressions of MEK1/2, p-ERK1/2, Cyclin D1, Bcl-2, Bax, p53, MMP-2, MMP-9 and uPA in tumor tissues were determined. Results showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Suberoylanilide hydroxamic acid; HCCLM3; Inhibitory; In vivo.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100528

8-Propyl-6H-[1,3]dioxolo[4,5-g]chromen-6-one: A new coumarin with monoamine oxidase B inhibitory activity and possible anti-parkinsonian effects
Provedor de dados: 60
Autores: Olaya,María del Pilar; Vergel,Nadezdha Esperanza; López,Jose Luis; Viña,Dolores; Guerrero,Mario Francisco.
Parkinson’s disease is a common neurodegenerative disorder. In this study, the monoamine oxidase inhibitory activity and potential anti-parkinsonian effects of 8-propyl-6H-[1,3]dioxolo[4,5-g]chromen-6-one (FCS303), a new synthetic coumarin, were evaluated. To do this, we used the reserpine model of Parkinson’s disease, an assay of levodopa/carbidopa potentiation, the catalepsy model of haloperidol, and an in vitro assay against monoamine oxidase (MAO) activity. Additionally, lipid peroxidation and protein carbonyl group quantification was performed in mice brain homogenates previously treated with haloperidol. FCS303 inhibited monoamine oxidase B (MAO-B) with an IC50 of 5.46 ± 0.36 µM; however, there was no effect on monoamine oxidase A (MAO-A). The oral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parkinson’s disease; Monoamine oxidase B; Coumarin; Mice; Reserpine; Levodopa; Carbidopa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100508

Selection of sunflower genotypes for salt stress and mechanisms of salt tolerance in contrasting genotypes
Provedor de dados: 64
Autores: Azevedo Neto,André Dias de; Mota,Katia Núbia Azevedo Barros; Silva,Petterson Costa Conceição; Cova,Alide Mitsue Watanabe; Ribas,Rogério Ferreira; Gheyi,Hans Raj.
ABSTRACT Salinity is one of the main limiting factors for crop growth. The metabolic responses to salt stress are variable and depend on species characteristics. This study aimed to select sunflower genotypes tolerant to salt stress and evaluate some mechanisms of salt tolerance in two contrasting (salt-tolerant and salt-sensitive) genotypes. In the first assay, the biomass production and the accumulation of Na+ and K+ in 26 sunflower genotypes were evaluated. Genotypes AG963, AG967, AG972, BRS321, BRS324, H251, H360 and H863 showed lower biomass production and were characterized as salt-sensitive and the genotypes BRS323, Catisol, EXP11-26, EXP44-49, EXP60050, EXP887, HLA860HO and Olisun 5 showed higher biomass production and were considered...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Helianthus annuus L.; Genotypic variation; Ion distribution; Osmotic tolerance; Abiotic stress.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100237

Physiological and biochemical responses of apple trees to irrigation water depth in a semiarid region of Brazil
Provedor de dados: 64
Autores: Oliveira,Cíntia Patrícia Martins de; Simões,Welson Lima; Silva,José Aliçandro Bezerra da; Faria,Glaucia Amorim; Lopes,Paulo Roberto Coelho; Amorim,Magno do Nascimento.
ABSTRACT The present study evaluated the physiological and biochemical parameters of apple trees under different irrigation water depths in a semiarid region of Brazil. The experiment had a split-plot randomized block design. Irrigation levels (60, 80, 100, and 120% of the reference evapotranspiration - ET0) and two apple cultivars (Julieta and Princesa) were analysed in the experimental plots and the phenological stages (vegetative, flowering and fruiting) were analysed in the experimental subplots. The physiological characteristics evaluated included the chlorophyll index, relative water content, net photosynthesis, stomatal conductance, transpiration, internal CO2 concentration, leaf temperature and instant carboxylation efficiency. The biochemical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malus domestica; Gas exchange; Leaf carbohydrates; Physiological stages.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100238

In vitro callus induction and development of Vernonia condensata Baker with embryogenic potential
Provedor de dados: 64
Autores: Rodrigues,Fabíola Rebouças; Almeida,Weliton Antonio Bastos de; Ledo,Carlos Alberto da Silva; Soares,Taliane Leila; Rossi,Mônica Lanzoni; Santana,José Raniere Ferreira de.
ABSTRACT Vernonia condensata Baker has been traditionally used in folk medicine for the treatment of several inflammatory and infectious processes. Overexploitation of this plant species has drastically reduced its population in its natural habitat (Cerrado). Therefore, tissue culture tools, such as somatic embryogenesis, can be used as an alternative method for rapid and large-scale plant regeneration. The objectives of this study were to induce callogenesis in Vernonia condensata from different types of explants and to evaluate the structural aspects of the development of pro-embryogenic masses of this species by means of histological analyses. The formation of calli was induced from leaf explants and internodal segments, which were inoculated in EME...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alumã; In vitro culture of calli; Anatomical analysis; Scanning electron microscopy; Growth regulators.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100201

Do Aqua Regia and EPA 3051A methods underestimate the pseudo-total P content in clay soil fraction?
Provedor de dados: 64
Autores: Melo,Vander Freitas; Guedes,Lauriane Guidolin.
ABSTRACT It is common the use of 3051A and aqua regia methods to assess the pseudo-total and total P contents in soil and in its fractions. However, previous study has shown the formation of large amounts of short-range order materials (SRO) in the residues of these extractions. The objective of this work was to evaluate whether phosphate resorb in the SRO formed in the residue of 3051A and aqua regia extractions in clay soil fraction. Residues obtained from the 3051A and aqua regia were recovered from filter papers. To characterize the SRO in these residues, sequential extractions were performed with 0.2 mol L-1 ammonium oxalate and 0.5 mol L-1 NaOH. The maximum pseudo-total P content extracted by aqua regia was 6800 mg kg-1. If SRO formed during this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Short-range order materials; Inner sphere adsorption; Isomorphic substitution; Sequential extractions.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100234

Solubilization of Araxá natural phosphate and decomposition of plant residues by bacterial isolates
Provedor de dados: 64
Autores: Paredes Filho,Mário Viana; Silva,Adriano Bortolotti da; Florentino,Ligiane Aparecida.
ABSTRACT Brazil imports most of the phosphate fertilizers used in agriculture, however, it has national deposits in its territory that can supply part of the domestic market demand. In order of these to be used effectively, it is necessary to identify techniques to accelerate the release of phosphorus (P) from these rocks. The objective was to evaluate the influence of inoculation with phosphate solubilizing bacterial isolates (PSB) and decomposition of different plant residues in the solubilization of Araxá natural phosphate (ANP). Two experiments were carried out in a completely randomized design in a 5 x 4 factorial scheme, with four replicates. The first experiment evaluated the solubilization of ANP by PSB in culture medium with four different sources...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diazotrophic bacteria; Organic material; Phosphorus availability in soil; Soil microorganisms.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100221

Correcting field determination of elemental contents in soils via portable X-ray fluorescence spectrometry
Provedor de dados: 64
Autores: Dijair,Thaís Santos Branco; Silva,Fernanda Magno; Teixeira,Anita Fernanda dos Santos; Silva,Sérgio Henrique Godinho; Guilherme,Luiz Roberto Guimarães; Curi,Nilton.
ABSTRACT Portable X-ray fluorescence (pXRF) spectrometry has been useful worldwide for determining soil elemental content under both field and laboratory conditions. However, the field results are influenced by several factors, including soil moisture (M), soil texture (T) and soil organic matter (SOM). Thus, the objective of this work was to create linear mathematical models for conversion of Al2O3, CaO, Fe, K2O, SiO2, V, Ti and Zr contents obtained by pXRF directly in field to those obtained under laboratory conditions, i.e., in air-dried fine earth (ADFE), using M, T and SOM as auxiliary variables, since they influence pXRF results. pXRF analyses in field were performed on 12 soil profiles with different parent materials. From them, 59 samples were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: PXRF; Soil moisture; Soil texture; Soil organic matter; Prediction models.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100211

Physico-chemical, morphological and technological properties of the avocado (Persea americana Mill. cv. Hass) seed starch
Provedor de dados: 64
Autores: Macena,Jéssica Franco Freitas; Souza,Joiciana Cardoso Arruda de; Camilloto,Geany Peruch; Cruz,Renato Souza.
ABSTRACT Avocado seeds (Persea americana Mill) are a byproduct of fruit processing and are considered a potential alternative source of starch. Starch is widely used as a functional ingredient in food systems, along with additives such as salt, sugars, acids and fats. This study aimed to perform the physicochemical, morphological and technological characterization of starch from avocado seeds and to evaluate the consistency of gels when salt, sugar, acid and fat are added. Extraction yield was 10.67% and final moisture 15.36%. The apparent amylose content (%) was higher than other cereal and tuber starches. XRD standards confirmed the presence of type B crystallinity, typical of fruits and tubers, with a crystallinity degree of 56.09%. The swelling power...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: By-product; Industrial waste; Additives.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100400

Lime and phosphate effects on atrazine sorption, leaching and runoff in soil
Provedor de dados: 64
Autores: Lima,José Maria de; Aquino,Regimeire Freitas; Magalhães,Ciro Augusto de Souza; Gonçalves,Raissa Homem; Nóbrega,Júlio Cesar Azevedo; Mello,Carlos Rogério.
ABSTRACT Atrazine still is a widely used herbicide in tropical soils to control annual broad-leaved weeds and annual grasses mainly in maize and sorghum plantations. Sorption and desorption in such soils are important processes that affect transport, ending with soil and water contamination, not only in these soils, but in other soils around the world. Lime and phosphate are important amendments in tropical soils to mitigate low fertility. These treatments can affect interaction among soil particles and between soil and atrazine. The objectives here were to evaluate the effect of lime, phosphate, and lime + phosphate treatments on sorption and transport of atrazine in a Typic Hapludult, using soil-erosion-plots at field conditions in a 3%-slope landscape...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contamination; Pesticide; Argisol; Soil erosion plots.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100204

Phenotypic parameters of macromineral and phenolic compound concentrations and selection of Andean bean lines with nutritional and functional properties
Provedor de dados: 64
Autores: Ribeiro,Nerinéia Dalfollo; Mezzomo,Henrique Caletti.
ABSTRACT The development of Andean common bean lines that contain high macromineral concentration and a phenolic compound concentration that meets the consumer’s dietary requirements is unprecedented in the literature. The objectives of this study were to obtain estimates of phenotypic parameters for the macromineral and phenolic compound concentrations in a recombinant inbred line (RIL) population of Andean beans and to select lines with nutritional and functional properties. The RIL was obtained from a cross between cultivars Hooter and Cal 96. The lines in the F5:6 and F5:7 generations and the cultivars were evaluated in two consecutive experiments in the same experimental area. The concentrations of potassium (K), phosphorus (P), magnesium (Mg), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Heritability; Inheritance pattern; Selection index.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100210

Identification of physiological analysis parameters associated with coffee beverage quality
Provedor de dados: 64
Autores: Freitas,Marcella Nunes de; Rosa,Sttela Dellyzete Veiga Franco da; Pereira,Cristiane Carvalho; Malta,Marcelo Ribeiro; Dias,Carlos Tadeu dos Santos.
ABSTRACT The demand for high-quality coffee among consumers has generated a great deal of interest among producers in serving this market. Parameters for physiological analyses that can be associated with aspects of sensory analyses of coffee can ensure more reliable results for coffee quality assessments. The aim of this study was to investigate the potential of physiological analyses in determining coffee quality through multivariate analysis. Several samples from coffee bean/seed lots were placed in cold storage at 10 °C, after which the sensory quality, physiological quality, and chemical characteristics of the beans were evaluated before storage and after three and six months of storage. The variables of physiological quality in the coffee beans were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arabica L.; Sensory analysis; Physiological tests; Variable selection; Canonical correlation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100213

Modified arrowroot starch and glucomannan for preserving physicochemical properties of sweet bread
Provedor de dados: 64
Autores: Damat,Damat; Setyobudi,Roy Hendroko; Soni,Peeyush; Tain,Anas; Handjani,Hany; Chasanah,Uswatun.
ABSTRACT Sweet bread is associated with smooth texture and high carbohydrate content, tasty and filling - quality that makes it preferred for snack. The key is in formulating raw material and other components. Commonly, sweet bread has short shelf life. Frozen dough could be the solution to this problem, and glucomannan addition during freezing process should be able to improve its physicochemical characteristics. This research aims to determine the effect of adding modified arrowroot (Maranta arundinacea L.) starch (MAS) as substitution, and glucomannan as frozen dough cryoprotectant toward sweet bread’s physicochemical. Randomized Complete Block Design Factorial (RCBD) was applied, and two factors were studied. The first factor was modified arrowroot...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryoprotectant; Frozen dough; Resistant fiber; Retrogradation; Shelf life.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100405

Magnetic field in coffee seed germination
Provedor de dados: 64
Autores: Braga Júnior,Roberto Alves; Azevedo,Roberto Luiz de; Guimarães,Renato Mendes; Reis,Leandro Vilela.
ABSTRACT The effective production of coffee seedlings faces many challenges, including seed germination. Therefore, a reduced seed germination period can be one of the most relevant contributions to enhance the testing and production of robust seedlings. The objective of this research was to evaluate the effects of a constant magnetic field on the germination of coffee seeds (Coffea arabica L.). The analyses were performed using a biospeckle laser (BSL) in conjunction with traditional seed viability tests. The coffee seeds were subjected to magnetic fields of constant intensity at values of 10 mT and 28 mT for a time interval of 6 days during their germination process. The embryo region was illuminated, and the images obtained by the BSL were processed....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Magnetism; Breaking dormancy; BSL.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100218

Lemon balm and sage herbal teas: Quantity and infusion time on the benefit of the content
Provedor de dados: 64
Autores: Yaman,Cennet.
ABSTRACT Sage (Salvia officinalis L.) and lemon balm (Melissa officinalis L) are important medicinal plants and their infusions (herbal teas) are the most common form of these plants consumed. In this study, herbal teas of both species cultivated and exported in Anatolia region were prepared using different infusion time (5 and 10 min) and sample amount (2 and 3 g). These herbal teas were analysed for their vitamin C, total phenolics, total flavonoids, total flavanols, free radical scavenging activities (1,1-diphenyl-2-picryl-hydrazyl and hydrogen peroxide), and also twelve minerals (K, Na, Mg, Ca, Fe, B, Ti, Sr, Ba, Li, Ag and Ga) were determined in each sage and lemon balm dry leaves as well as their herbal teas. Vitamin C in the herbal teas varied from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant activity; Minerals; Vitamin C.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100407

Antioxidant activity and physiological performance of popcorn seed after saline stress and analysis of seedling images
Provedor de dados: 64
Autores: Catão,Hugo Cesar Rodrigues Moreira; Caixeta,Franciele; Lopes,Amanda Moreira; Nery-Silva,Flavia Andrea; Sá Júnior,Adílio de.
ABSTRACT Salinity influences all germination stages and may adversely affect seedling establishment in the field. The objective of this research was to determine the relationship between the antioxidant activity and the physiological performance of seeds and to verify the efficacy of the imaging analysis of popcorn seedlings after seed exposure to saline stress. A completely randomized design was used that consisted of four replicates in a factorial scheme. This scheme comprised three popcorn hybrids (P618, AP6002, and AP8203) and five saline potential levels (0.0; -0.1; -0.3; -0.6, and -0.9 MPa) that were obtained from KCl solutions of different concentrations. First count germination, germination and seedling vigor classification (strong normal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays var. everta; Physiological quality; Seed vigor; Image processing; Salinity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100230

Phosphorus availability in soil amended with biochar from rice rusk and cattle manure and cultivated with common bean
Provedor de dados: 64
Autores: Torres,William Gleidson Alves; Colen,Fernando; Pandey,Sugandha Dogra; Frazão,Leidivan Almeida; Sampaio,Regynaldo Arruda; Fernandes,Luiz Arnaldo.
ABSTRACT The soils of the Brazilian Savanna are generally acidic and have low availability of nutrients, so the use of alternative inputs to improve their fertility should be investigated. The objectives of this study were to evaluate the potential of biochars from rice husk (BHR) and from bovine manure (BCM) in increasing phosphorus availability and their effects on soil chemical properties and in common beans plants. The experiments were carried out in a completely randomized design, in a 4x2+3 factorial scheme with four replicates. The treatments were four biochar doses (1, 2, 3 and 4% m/v), two biochars (BRH and BCM) and three additional treatments (C1, no liming and no fertilization; C2, addition of Ca and Mg carbonate and NPK fertilizers and; C3,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil fertility; Pyrolysis; Phaseolus vulgaris L.; Silicon.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100232

Brazilian cheese bread rolls from fermented and native waxy maize starch
Provedor de dados: 64
Autores: Teixeira,Camila Souza; Neves,Glenda Antonia da Rocha; Oliveira,Tatianne Ferreira de; Caliari,Márcio; Soares Júnior,Manoel Soares.
ABSTRACT Brazilian cheese bread (CB) rolls are gluten-free bread made from sour cassava starch. They are soft in the center and have crispy crust, reminding of the extruded structure. Although native waxy maize starch (WMS) has higher technologic quality, it has not been used in CB rolls; therefore, this study aimed to investigate the use of WMS and the backslopping fermentation process plus sun drying in WMS to replace sour cassava starch (0, 25%, 75%, and 100%) and the effects on dough development, color, and textural properties. Data were analyzed using variance and Tukey test (p ≤ 0.05%), and the results were set against a commercial product from cassava starch. The better formulation was characterized by proximal composition, sensorial acceptance, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gluten-free bread; Backslopping fermentation; Starch modification; Bakery; Celiac diet.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100403

Nutritional status and physiological parameters of maize cultivated with sewage sludge
Provedor de dados: 64
Autores: Moreira,Rodrigo Santos; Lense,Guilherme Henrique Expedito; Fávero,Leonardo Ferreira; Oliveira Junior,Benedito Majela de; Mincato,Ronaldo Luiz.
ABSTRACT The use of sewage sludge as a source of nutrients and organic matter for agricultural soils is a well-established practice. However, few reports highlight the effect of the nutrients and potentially toxic elements provided by organic wastes application on the plant physiological parameters, such as photosynthetic activity and stomatal conductivity. We performed a greenhouse experiment with maize exposed to a dystrophic red Latosol amended with mineral fertilizer and different rates of sewage sludge with the following objectives: i) assess the nutrients and metal uptake translocation and distribution in plants and ii) evaluate the relationship between plant physiological parameters and yield indicators under the study conditions. The application of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biosolids; Zea mays; Agricultural production; Heavy metals.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100203

Mulching materials and wetted soil percentages on zucchini cultivation
Provedor de dados: 64
Autores: Silva,Gustavo Henrique da; Cunha,Fernando França da; Morais,Caio Vieira de; Freitas,Agnaldo Roberto de Jesus; Silva,Derly José Henriques da; Souza,Caetano Marciano de.
ABSTRACT Polyethylene mulch can cause serious problems in the environment. A promising alternative to polyethylene mulch is biodegradable mulch. Therefore, a two-year experiment was carried out with zucchini (Cucurbita pepo L.) during the cropping seasons of 2017 and 2018 in Southeast Brazil to investigate the effects of four soil mulching treatments (white polyethylene mulch: WP, black polyethylene mulch: BP, biodegradable mulch of brown recycled paper: RP and nonmulched: NM) and two wetted soil percentages (50 and 70% of the soil surface) using a randomized block design with five repetitions. The average water consumption of the zucchini was 157 mm in the WP treatment, 155 mm in the BP treatment, 155 mm in the WP treatment and 215 mm in the NM treatment....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodegradability; Cucurbita pepo; Drip irrigation; Water saving.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100217

Drying kinetics and effective diffusion of buckwheat grains
Provedor de dados: 64
Autores: Siqueira,Valdiney Cambuy; Leite,Rafael Araújo; Mabasso,Geraldo Acácio; Martins,Elton Aparecido Siqueira; Quequeto,Wellytton Darci; Isquierdo,Eder Pedroza.
ABSTRACT Buckwheat has become important in the food sector as its flour does not contain gluten. Since buckwheat is a relatively new crop in the agricultural environment, there is little information available regarding its processing. Drying is one of the most important post-harvest stages of buckwheat. The aim of the present study was to describe the drying process of buckwheat grains. Buckwheat grains with a moisture content of 0.41 ± 0.01 (dry basis, d.b.) were harvested, followed by drying in an experimental dryer at the temperatures of 40, 50, 60, 70, and 80 °C, at an air speed of 0.8 m s-1. The drying rate was determined, and the mathematical models generally employed to describe the drying process of several agricultural products were fitted to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Activation energy; Fagopyrum esculentum Moench; Mathematical models; AIC and BIC; Gluten.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100235

Physical and mechanical behavior of glulam beams produced with rubberwood treated with preservatives
Provedor de dados: 64
Autores: Faria,Douglas Lamounier; Cruz,Thiago Moreira; Dias,Matheus Cordazzo; Duarte,Paulo Junio; Mendes,Lourival Marin; Guimarães Junior,José Benedito.
ABSTRACT This work aimed to evaluate the physical and mechanical behavior of glued laminated timber (GLT) - glulam pieces of Hevea brasiliensis treated with chromed copper arsenate (CCA), chromed copper borate (CCB) and pyrethroid in the production of GLT. The pieces were produced using three wooden laminae with dimensions of 60 x 20 x 1200 mm, (width x thickness x length), joined with epoxy adhesive under 1.0 MPa pressure for 24h at room temperature. The rubberwood had an apparent density of 0.624 g cm-3, a value close to that of Eucalyptus grandis wood, a species traditionally used in the manufacture of GLT. Regarding the GLT parts, it was observed that the preservative treatment with CCA and CCB influenced negatively the values ​​of the mechanical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adhesive wood bonding; Static bending; Delamination; Preservative treatment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100236

Thermodynamic properties of moisture desorption isotherms of ryegrass (Lolium multiflorum L.) seeds
Provedor de dados: 64
Autores: Zeymer,Juliana Soares; Corrêa,Paulo Cesar; Oliveira,Gabriel Henrique Horta de; Araujo,Marcos Eduardo Viana de; Magalhães,Diana Soares.
ABSTRACT Studies about the thermodynamic properties of ryegrass seeds are necessary to improve post-harvest processes, relating the factors that affect product quality with the interaction between water and its chemical components. Given the importance of recognizing and understanding the intrinsic behavior of water in ryegrass seeds and providing data for the improvement of industrial drying equipment, this work aimed to calculate and evaluate the thermodynamic properties of moisture desorption of ryegrass seeds as a function of the equilibrium moisture content. Ryegrass seeds with initial moisture content of 10.4 (% d.b.) was used. The equilibrium moisture content of seeds was determined by static-gravimetric method at different temperatures (10, 20, 30,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gibbs free energy; Entropy; Enthalpy; Water activity; Chung Pfost.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100202

Blackberry pomace microspheres: An approach on anthocyanin degradation
Provedor de dados: 64
Autores: Santos,Suelen Siqueira dos; Paraíso,Carolina Moser; Madrona,Grasiele Scaramal.
ABSTRACT Blackberry pomace is a rich source of antioxidant compounds, including anthocyanins, but these compounds degrade easily in the presence of high temperatures. Therefore, the present study aimed to evaluate the effect of temperature on anthocyanin degradation in spray-dried blackberry pomace extract. Maltodextrin was used as a drying aid agent in a spray drying process to produce microspheres. The experiment was set up at Maringá-PR, Brazil (23º 25’ 31” S, 51º 56’ 19” W, 596 m altitude). The thermal stability of anthocyanins was evaluated in the presence and absence of copigments at different temperatures ranging from 70 °C to 100 °C using degradation kinetics. The role of maltodextrin in protecting anthocyanins during the spray drying process was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rubus fruticosus; Antioxidant analyses; Spray dryer; Kinetics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100406

Antioxidant activity and physico-chemical analysis of Campomanesia rufa (O.Berg) Nied. fruits
Provedor de dados: 64
Autores: Abreu,Letícia Aparecida Ferreira de; Paiva,Renato; Mosqueira,Judith Georgette Alcalde; Reis,Michele Valquíria dos; Araújo,Ana Beatriz Silva; Boas,Eduardo Valério de Barros Vilas.
ABSTRACT Campomanesia rufa (O. Berg) Nied. is a native Cerrado species that presents great edible potential. However, it is a species “in danger of extinction” as recommended by the International Union for the Conservation of Nature (IUCN). No technical and scientific information about the species exists, thus demonstrating the importance of its research. The present work aimed at the physical and chemical characterization of immature and mature C. rufa fruits. The fruits showed a change in coloration from green (b * = 25.11, h = 122.43) to yellowish-green (b * = 34.26 , h = 115.73), an increase in mass (6.54 g to 10.88 g), diameter (23.76 mm to 28.03 mm) and soluble solids (8.00 to 10.80%). The fruits presented high levels of total (1246.35 mg 100 g-1)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Myrtaceae; Casaqueira; Endangered species; Vitamin C.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100239

How freezing methods affect the sensory profile of pasteurized and unpasteurized mangaba pulp
Provedor de dados: 64
Autores: Gonçalves,Gilma Auxiliadora Santos; Resende,Nathane Silva; Gonçalves,Carla Saraiva; Carvalho,Elisângela Elena Nunes de; Resende,Jaime Vilela de; Boas,Eduardo Valério de Barros Vilas.
ABSTRACT The Mangaba, an exotic fruit of the Brazilian Cerrado, is very appreciated for its peculiar sensory characteristics. Here we aimed to evaluate the sensory profile of mangaba pulp subjected to three treatments (unpasteurized and pasteurized pulps; frozen by static air and forced air; stored frozen for zero, 4, 8 and 12 months). The following sensory tests were applied: temporal dominance of sensations (TDS) (identify and check the dominant sensations of flavor over time of consumption), ideal scale (identify optimal concentration of sucrose to be added in nectar) and acceptance test (to evaluate the effect of treatments on consumer acceptance). By TDS analyses, a sour taste was reported for most treatments, combined with the identification of a bad...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hancornia speciosa Gomes; Temporal dominance of sensations; Just-About-Right-Scale; Acceptance test; Sensory quality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100401

Use of buffer methods to estimate the potential acidity of Mato Grosso soils
Provedor de dados: 64
Autores: Prado,Marcelo Ribeiro Vilela; Moraes,Milton Ferreira de; Ramos,Fabrício Tomaz; Santos,Carlos Leandro Rodrigues do; Campos,David Vilas Boas de; Barros,Gisele Teixeira.
ABSTRACT Mato Grosso, with a total area of 903357 km², does not have an official methodology for estimating soil potential acidity (H + Al), and determination of H + Al using the standard method is onerous and time consuming. The objective of this study was to compare estimated values of H + Al determined using the standard calcium acetate method with those obtained using three buffer methods, namely, the Shoemaker, McLean, and Pratt (SMP) buffer, Sikora buffer, and Santa Maria buffer (SMB) methods, with samples of the main classes of cultivated soils in the state of Mato Grosso. A total of 196 soil samples were collected from the arable layer (0-20 cm) in agropastoral and adjacent native systems. Statistical models were obtained and compared with models...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Limestone; SMP buffer; Sikora buffer; Santa Maria buffer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100207

Waterlogging effects upon the phenological phases of common bean cultivar BRSMG-Uai
Provedor de dados: 64
Autores: Costa,Beatriz Gonçalves Pereira; Amâncio,Bárbara Christina Silva; Boas,Lissa Vasconcellos Vilas; Bastos,Ludmila da Silva; Domiciano,Debora; Marchiori,Paulo Eduardo Ribeiro.
ABSTRACT Common bean (Phaseolus vulgaris L.) is an important source of protein and carbohydrates, besides being rich in several mineral nutrients. In a flooding situation, the low availability of oxygen may result in hypoxia or anoxia condition. Therefore, this study aimed to evaluate the responses of the common bean cultivar BRSMG-Uai subjected to hypoxia in different phenological phases, analyzing its responses in terms of growth, productivity, carbon and nitrogen metabolism. Thus, seeds of common beans were germinated and when the seedling reached growth stage V1, they were transferred to plastic boxes containing 40L of nutritive solution with steady aeration. Distinct series of plants were exposed to air-restriction on their roots for nine days, in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hypoxia; Phaseolus vulgaris L.; Nitrogen metabolism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100231

Rootstocks for the new seedless table grape ‘BRS Vitória’ under tropical semi-arid conditions of São Francisco Valley
Provedor de dados: 64
Autores: Leão,Patrícia Coelho de Souza; Nascimento,José Henrique Bernardino do; Moraes,Dayane Silva de; Souza,Edimara Ribeiro de.
ABSTRACT ‘BRS Vitoria’ is the most important Brazilian table grape cultivar in the domestic and foreign markets, standing out for the seedleness, pleasant flavor, high yield and mildew resistance. The aim of the present study was to determine the effect of the rootstock on the yield, production components, vigor, and physical and chemical characteristics of the ‘BRS Vitória’ grape under irrigation in the Brazilian semi-arid region. The experiment was conducted over eight consecutive production cycles in the period from 2015 to 2018 in a commercial area in the Senador Nilo Coelho project, Petrolina, PE. The treatments were represented by seven rootstocks: ‘IAC 572’, ‘IAC 766’, ‘IAC 313’, ‘Harmony’, ‘SO4’, ‘Paulsen 1103’, and ‘Freedom’, using a randomized...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical viticulture; Seedless grapes; Yield; Vitis sp.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100200

Maltodextrin on the flow properties of green coconut (Cocos nucifera L.) pulp powder
Provedor de dados: 64
Autores: Araújo,Tayla Maria Ramos; Farias,Michael Douglas Lemos; Afonso,Marcos Rodrigues Amorim; Costa,José Maria Correia da; Eça,Kaliana Sitonio.
ABSTRACT The study of the flow properties and particle surfaces of a food powder is essential for predicting its behaviour during processing and commercialization. The objective of this work was to determine the powder flow properties of lyophilized green coconut pulp with different concentrations of maltodextrin. Samples containing 0, 5, 10 and 15% (m/m) maltodextrin were lyophilized, and the flow index (FI), wall friction angles and densities were determined. The microstructure of the powders was evaluated by scanning electron microscopy (SEM). The samples containing 0 and 5% maltodextrin showed 1.87 FI, classifying them as very cohesive powders, and those containing 10 and 15% cohesive powder showed 2.12 and 2.43 FI, respectively. The powder densities...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flow index; Cohesiveness; Powder density.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100402

Flavonoids and their aromatic derivatives in Piper betle powder promote in vitro methane mitigation in a variety of diets
Provedor de dados: 64
Autores: Purba,Rayudika Aprilia Patindra; Paengkoum,Siwaporn; Yuangklang,Chalermpon; Paengkoum,Pramote.
ABSTRACT At present, there is little information regarding whether supplementation with Piper betle powder (PBP) and sunflower oil (SFO) has a synergistic effect on lowering methane emissions without negatively impacting ruminal fermentation. This study investigated the effects of PBP, supplemented either with or without SFO, on biogas release, fermentation end-products, and microorganisms in the rumen of lactating goats. The treatments were run in a completely randomized 3 × 5 factorial arrangement, whereby 0, 15, and 30 mg SFO were combined with 0, 15, 30, 45, and 60 mg PBP on a dry matter basis. The outcomes were assessed in vitro. PBP was obtained from the perennial plant Piper betle L., which is an abundant source of flavonoids and their aromatic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environment; Feed utilization; Fermentation; Methane reduction potential; Polyphenols.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100300

Strawberry genotypes with resistance to Tetranychus urticae mediated by leaf trichomes
Provedor de dados: 64
Autores: Resende,Juliano Tadeu Vilela de; Lima Filho,Renato Barros de; Ribeiro,Luana Karolline; Corrêa,Jéssica Vanessa Wosniak; Maciel,Cleber Daniel de Goes; Youssef,Khamis.
ABSTRACT The two-spotted spider mite (Tetranychus urticae) is the main pest encountered in strawberry cultivation in protected environments, causing damage and increasing the cost of production associated with chemical control. Breeding programs are essential for obtaining new cultivars that are more tolerant to two-spotted spider mites. The objective was to evaluate whether the leaf trichomes mediatethe resistance of intraspecific strawberry hybrids to two-spotted spider mites. Preselected hybrids were subjected to infestation by two-spotted spider mites and evaluated via the no-choice assay and the travel test. Resistance was correlated with the density of trichomes, both glandular and non-glandular, present on the surface of the leaflets of strawberry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria x ananassa; Intraspecific hybridization; Antibiosis; Antixenosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100220

Variability in salinity stress tolerance of potato (Solanum tuberosum L.) varieties using in vitro screening
Provedor de dados: 64
Autores: Ahmed,Hussein Abdullah Ahmed; Şahin,Nilüfer Koçak; Akdoğan,Güray; Yaman,Cennet; Köm,Deniz; Uranbey,Serkan.
ABSTRACT Salinity is one of the abiotic stresses that lead to an imbalance in the physiological processes of the plants and also affects potato growth and productivity in maınly semi-arid and growing areas. The accumulation of Na+ and Cl- ions in the cells is very toxic can influence all mechanisms and the enzymatic actions of the plants. In vitro screening of plant genotypes for osmotic stress represents a valuable tool as an alternative to field trials and can be applied based on osmotic stress tolerance. The main goal of this study was to reveal variability in salinity stress tolerance of potato varieties using in vitro screening. Stem cuttings consisting of a single node of different varieties were cultured on Murashige and Skoog (MS) medium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osmotic tolerance; Microtuberization; Plant toxicity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100219

Combining ability between common bean gene groups for root distribution trait
Provedor de dados: 64
Autores: Cerutti,Paulo Henrique; Grigolo,Sibila; Melo,Rita Carolina de; Fioreze,Ana Carolina da Costa Lara; Guidolin,Altamir Frederico; Coimbra,Jefferson Luís Meirelles.
ABSTRACT When different gene groups are combined by hybridization, the expression of predominant genes for a trait must be known. This understanding is fundamental to the decisions made by breeders in the stages of cultivation and selection of segregating populations during the breeding program. Thus, the objective of this study was to determine the effects of combining ability and gene action for the root distribution traits of the Andean and Mesoamerican common bean gene groups. Six common bean parents from the Andean and Mesoamerican groups were hybridized in a complete diallel mating scheme, resulting in 30 F1 hybrids. The parents and hybrids were planted in the field in a simple lattice design. The target trait was root distribution, calculated as the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene action; Andean and mesoamerican gene pool; Diallel analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100226

Nutrient and inorganic solute (Na+ and Cl-) content in green onion plants under hydroponic cultivation using brackish water
Provedor de dados: 64
Autores: Souza,Carlos Donato da Silva; Silva,Geronimo Ferreira da; Menezes,Sirleide Maria de; Morais,José Edson Florentino de; Santos Júnior,José Amilton; Silva,Alexsandro Oliveira da.
ABSTRACT Cultivation using brackish waters can result in nutritional and metabolic imbalances in several plant species, consequently reducing the production of dry matter (DM) and accumulation of toxic ions (Na+ and/or Cl-) in plants. We evaluated the DM production, and nutrient and inorganic solute (Na+ and Cl-) content in green onion plants (cv. Todo Ano Evergreen - Nebuka) under different levels of nutrient solution salinity in combination with circulation frequencies of this solution. Two experiments were conducted in a hydroponic system, using a completely randomized design, in a 6 × 2 factorial scheme, with five replicates: six levels of nutrient solution salinity (1.5, 3.0, 4.5, 6.0, 7.5, and 9.0 dS m-1) and two solution circulation frequencies...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium fistulosum L.; Nutrient solution; Salinity; Mineral nutrition.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100227

Transcriptional responses of Rosa rugosa to salt stress and salt shock
Provedor de dados: 64
Autores: Reis,Michele Valquíria dos; Rouhana,Laura Vaughn; Paiva,Patrícia Duarte de Oliveira; Silva,Diogo Pedrosa Correia da; Paiva,Renato; Korban,Schuyler.
ABSTRACT Rugosa rugosa has high tolerance to various stresses; however, the molecular mechanisms of this behavior under adverse conditions are unclear. The objective of this study is to investigate expression patterns of stress-related genes in response to salinity stress. Changes in transcript levels of R. rugose, grown under different salt stress conditions (0, 25, 50, and 100 mM NaCl) over a long exposure period (30 days), have been investigated. In addition, the effects of salt shock stress on seedlings exposed to a high level (200 mM) of NaCl for a relatively short duration (3 h) have also been investigated. Expression levels of selected differentially expressed genes have been determined using relative reverse transcription polymerase chain reaction...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rosaceae; Salinity; Salt tolerance; Ion homeostasis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100241

Mean components for choosing maize populations to extract inbred lines
Provedor de dados: 64
Autores: Resende,Ewerton Lélys; Pinho,Renzo Garcia Von; Silva,Eric Vinicius Vieira; Massitela,João Júlio; Souza,Vander Fillipe de; Souza,João Lucas Dias.
ABSTRACT The choice of germplasm is one of the most important phases of a genetic improvement program to the fact that it is the initial development stage of superior hybrids. Hence, the objectives of this study were to obtain the estimates of m+a and d, and inbreeding depression for grain yield and plant height traits, for cultivars lacking this information, and thus to predict the potential of maize hybrids for the extraction of lines. The F1 and F2 generations of 12 maize hybrids were tested at two sites, during the crop years of 2017-18 and 2018-19, accounting for four environments. Both the generations were evaluated in contiguous experiments in randomized blocks design with three and two repetitions during the years 2017-18 and 2018-19, respectively....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; L. heterosis inbreeding depression.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100243

Agronomic potential of BC1F2 dwarf round tomato populations
Provedor de dados: 64
Autores: Finzi,Rafael Resende; Maciel,Gabriel Mascarenhas; Peres,Hugo Gabriel; Silva,Marina Freitas e; Peixoto,Joicy Vitória Miranda; Gomes,Danilo Araújo.
ABSTRACT The use of dwarf lines to obtain mini-tomato hybrids has provided agronomic and economic benefits. In Brazil, round tomatoes predominate over other varieties. The benefits of using a dwarf parent in round tomato hybrids has yet to be explored, making it important to develop dwarf round tomato lines. Backcrossing is the most suitable method to develop these lines. Evaluation and selection of the dwarf populations can improve the development of such lines. Thus, the aim of this study was to select BC1F2 populations of dwarf round tomatoes with agronomic potential and high-quality fruit. The study was conducted at the Vegetable Experimental Station of the Federal University of Uberlândia (UFU). A randomized block design was used, with 15 treatments...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Backcrossing; Dwarfism; Solanum lycopersicum.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100205

Characterization of starch from different non-traditional sources and its application as coating in ‘Palmer’ mango fruit
Provedor de dados: 64
Autores: Rodrigues,Antonio Augusto Marques; Santos,Luana Ferreira dos; Costa,Rayssa Ribeiro da; Félix,Débora Tamara; Nascimento,José Henrique Bernardino; Lima,Maria Auxiliadora Coêlho de.
ABSTRACT Yam, cassava, jackfruit seed and mango seed kernel have potential for the extraction and use as starch in the food industry of starch or for the formulation of biodegradable coatings. As a biodegradable coating, starch can be applied in fruits characterized by a fast maturation, such as mango, which requires technologies to increase its shelf life. The aim of this study was to characterize starch from four non-traditional sources and to evaluate their potential as coating for ‘Palmer’ mango fruit. Starches used were extracted from cassava, mango seed kernel, jackfruit seed, and yam, and had their physical, optical, and chemical properties characterized for later use as coatings of ‘Palmer’ mango fruit. Fruits were coated with 3% cassava starch,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amylose; Solubility; Weight loss; Postharvest; Respiratory rate; Shelf life.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100404

Comparison between desorption isotherm curves of ryegrass (Lolium multiflorum L.) and flax (Linum usitatissimum L.) seeds
Provedor de dados: 64
Autores: Corrêa,Paulo Cesar; Zeymer,Juliana Soares; Oliveira,Gabriel Henrique Horta de; Araujo,Marcos Eduardo Viana de; Silva,Camilla Sena da.
ABSTRACT It is necessary to determine the sorption isotherms of seeds to develop adequate systems of storage and drying. The chemical composition of a product affects the sorption process; products with a high oil content adsorb a lower amount of moisture from the environment than products with a high carbohydrate content. Given the importance of the hygroscopicity of different agricultural products, this work aimed to determine, model and evaluate the difference between desorption isotherms of ryegrass and flax seeds grown at different temperature and relative humidity conditions. Ryegrass and flax seeds, which contained initial moisture contents of 10.4 and 8.7% (db), respectively, were used. The equilibrium moisture content of the seeds was determined...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Equilibrium moisture content; Chemical composition; Mathematical modeling; Chung Pfost; Smith.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100215

Alternative to Tukey test
Provedor de dados: 64
Autores: Batista,Ben Dêivide de Oliveira; Ferreira,Daniel Furtado.
ABSTRACT In order to search for an ideal test for multiple comparison procedures, this study aimed to develop two tests, similar to the Tukey and SNK tests, based on the distribution of the externally studentized amplitude. The test names are Tukey Midrange (TM) and SNK Midrange (SNKM). The tests were evaluated based on the experimentwise error rate and power, using Monte Carlo simulation. The results showed that the TM test could be an alternative to the Tukey test, since it presented superior performances in some simulated scenarios. On the other hand, the SNKM test performed less than the SNK test.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Type I error rate; Simulation; Range; Midrange; MidrangeMCP package.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100240

Chemical composition of sugarcane silages with crambe bran
Provedor de dados: 64
Autores: Bonfá,Caroline Salezzi; Guimarães,Cíntia Gonçalves; Evangelista,Antônio Ricardo; Santos,Alexandre Soares dos; Guimarães,Amanda Gonçalves; Gandini,Elizzandra Marta Martins.
ABSTRACT We evaluated the contents of dry matter (DM), crude protein (CP), mineral matter (MM), soluble carbohydrates (CHOS), ammonia nitrogen (N-NH3), neutral detergent fiber (NDF), and acid detergent fiber (ADF) in sugarcane silages to which different levels of inclusion (LI) of crambe bran (CB) were added in proportions of 0, 3, 10, 17 and 20% at different storage times (ST). Laboratory silos were used, predetermined ST being 0, 3, 7, 12, 24, 36, 41, and 60 days after silage. For statistical analysis, the response surface methodology was used, in which LI and ST served as independent factors and response variables as dependent factors. The levels of DM and CP increased linearly with NI; however, it did not show any significant response regarding ST. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiesel; Co-product; Response surface; Sustainability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100301

Does the substrate affect the germination of soybean seeds treated with phytosanitary products?
Provedor de dados: 64
Autores: Rocha,Debora Kelli; Carvalho,Everson Reis; Pires,Raquel Maria de Oliveira; Santos,Heloisa Oliveira dos; Penido,Amanda Carvalho; Andrade,Dayliane Bernardes de.
ABSTRACT The use of an appropriate method that accurately expresses physiological seed quality and minimizes possible phytotoxicity by chemical products in laboratory testing with soybean seeds is relevant. The objective of this work was to evaluate the influence and infer the method adequacy for the representative evaluation of physiological quality of soybean seeds treated with phytosanitary products. Two experiments were carried out in a completely randomized design, with trial 1 in a 9×5 factorial scheme involving nine seed treatments, including fungicides and insecticides, and solutions with five osmotic potentials (0, -0.25, -0.5, -0.75 and -1.0 MPa) for wetting a paper substrate in a germination experiment, with evaluation of the normal seedlings at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seed analysis; Toxicity; Glycine max; Physiological quality; Seed treatment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100209

Coating seeds with fertilizer: A promising technique for forage crop seeds
Provedor de dados: 64
Autores: Baroni,Danilo Força; Vieira,Henrique Duarte.
ABSTRACT Fertilization is not a common management practice at pasture establishment in Brazil. Seed coating technology can be a useful approach to ensure the availability of nutrients to plants during the early stages of development. Thus, the objective of this work was to investigate the incorporation of liquid fertilizer in seeds of Stylosanthes and to evaluate the effect of this technology on seed quality. Mastermins® fertilizer was applied to the last layer of the binder material coating on the seed and Polyseed 76F polymer adhesive was thereafter applied onto the fertilizer. Physiological and biometric analyses of the seeds were carried out. Six fertilizer doses (0, 10, 20, 30, 40, and 50 mL.100 g seeds-1) were tested, with and without adhesive. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Stylosanthes capitata/macrocephala cv. Campo Grande; Seed quality; Fertilization; Polymer adhesive.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100228

Aluminum toxicity reduces the nutritional efficiency of macronutrients and micronutrients in sugarcane seedlings
Provedor de dados: 64
Autores: Borges,Carolina Eggers; Cazetta,Jairo Osvaldo; Sousa,Francisco Bruno Ferreira de; Oliveira,Kamilla Silva.
ABSTRACT Although the effects of aluminum on the content and accumulation of mineral nutrients in crops have been studied, but nothing is known about its effect on the nutritional efficiency of sugarcane. Therefore, this study aimed to evaluate the effect of aluminum toxicity on nutritional efficiency, nutrient accumulation, and growth of sugarcane seedling. Sugarcane seedlings of the genotype IACSP95-5000, obtained from one-bud mini-cuttings (3 cm), were used in the test. Seedlings were subjected to treatments in a completely randomized design, with eight Al concentrations in the nutrient solution (0, 10, 20, 30, 40, 50, 60, and 70 mg L−1) and three replicates, totaling 24 experimental units. Analyses determined the contents, accumulation, and absorption,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Use efficiency; Acidity; Accumulation; Abiotic stress; Saccharum spp.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100233

Maceration extraction conditions for determining the phenolic compounds and the antioxidant activity of Catharanthus roseus (L.) G. Don
Provedor de dados: 64
Autores: Cacique,Ane Patrícia; Barbosa,Érica Soares; Pinho,Gevany Paulino de; Silvério,Flaviano Oliveira.
ABSTRACT Catharanthus roseus(L.) G. Don is a medicinal plant known for its important constituent aromatic compounds. In the literature, no detailed studies elucidating the methods of extraction of phenolic compounds for this species are available. Therefore, the present study was aimed at evaluating the maceration parameters for determining the total phenols content in C. roseus. The parameters of plant mass, extraction phase composition, homogenization type, extraction time, and temperature were evaluated in terms of improving the extraction conditions. The plant extracts were subjected to specific spectrophotometric analysis designed for each parameter, and the total phenols content was determined. After establishing the optimal conditions, the extracts...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytochemistry; DPPH; ABTS; FRAP; Phenolic acids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100245

Methionine plus cystine requirements for the maintenance and efficiency of utilization with tambaqui of different body weights
Provedor de dados: 64
Autores: Porto,Neliane Galvão; Ribeiro,Felipe Barbosa; Siqueira,Jefferson Costa de; Bomfim,Marcos Antonio Delmondes; Marchão,Rafael Silva; Costa,Dayana da Conceição da.
ABSTRACT Methionine is an essential amino acid, and generally, the first limiting one in the diets of tambaqui, the main native fish produced in continental aquaculture in South America. However, there is a lack of information on their amino acid requirement, especially for maintenance and efficiency of utilization. The present study aimed to determine the requirement of [methionine plus cystine] for the maintenance and efficiency of utilization using tambaqui of different body weights. Two experiments were carried out using 250 tambaqui with weights of 100 and 300 g. They were distributed in a completely randomized design with four treatment groups (0.264, 0.396, 0.528, and 0.660% of digestible [Met + Cys]), five replications. The control treatment (CT)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sulfur amino acids; Colossoma macropomum; Factorial method; Amazon fish.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100302

Nutrition, yield and nutrient export in common bean under zinc fertilization in no-till system
Provedor de dados: 64
Autores: Kachinski,Wagner Deckij; Ávila,Fabrício William; Muller,Marcelo Marques Lopes; Reis,André Rodrigues dos; Rampim,Leandro; Vidigal,Julio Cezar Borecki.
ABSTRACT Zinc (Zn) is one of the most deficient plant micronutrients in agricultural crops. The objective of this study was to evaluate plant nutrition, grain yield and nutrient export rate in response to soil and foliar Zn fertilization in common bean (Phaseolus vulgaris L.). Two field experiments in no-till system were carried out using two common bean cultivars, BRS Esteio (black bean) and IPR Campos Gerais (Carioca bean). Treatments were composed of soil Zn application during sowing and foliar Zn spray at flowering stage. Soil Zn application had effect on leaf Zn concentration in IPR Campos Gerais and did not affect grain yield of both cultivars. Foliar Zn spray increased leaf Zn concentration by approximately two times in both cultivars, but...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Tropical soil; Micronutrient; Grain yield.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100206

Agronomic characters and disease management in second season corn using calcium, copper, manganese and zinc products
Provedor de dados: 64
Autores: Lorenzetti,Eloisa; Tartaro,Juliano; Stangarlin,José Renato; Kuhn,Odair José.
ABSTRACT Corn is a cereal whose productivity can be reduced by various diseases which has recommended treatments for control. The objective of this study was to analyze copper, zinc, calcium and manganese products for the management of Pantoea ananatis, Puccinia polysora and Cercospora zeae maydis in second season corn, and interference in agronomic characteristics. Commercial products made of amino acid chelated with 15% calcium, 5% copper, 15% manganese and 10% zinc, at the doses of 0.5 kg ha-1, 0.3 L ha-1, 0.4 kg ha-1 and 1 L ha-1, respectively, a treatment with fungicide (20% azoxystrobin and 8% cyproconazole at 0.3 L ha-1 + 25% propiconazole at 0.4 L ha-1), and a treatment with water were assayed. The experiments were carried out under field...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative control; Nutrition; Zea mays L.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100208

Does inoculation with Rhizobium tropici and nitrogen fertilization increase chickpea production?
Provedor de dados: 64
Autores: Almeida Neta,Maria Nilfa; Pegoraro,Rodinei Facco; Sampaio,Regynaldo Arruda; Costa,Cândido Alves da; Fernandes,Luiz Arnaldo; Ferreira,Jessica Mendes.
ABSTRACT Studies related to nitrogen fertilization and biological nitrogen fixation in the increase of chickpea production are considered scarce in tropical regions. This work aimed to evaluate the inoculation with Rhizobium tropici, and nitrogen fertilization, under irrigated tropical conditions, on the development of chickpea in low and high content of soil organic matter (SOM). The experimental design was in randomized blocks, with four replications, in a 2 x 6 factorial scheme. Treatments, consisted of the presence and absence of inoculation with R. tropici, and six N doses (0, 25, 50, 75, 100, and 125 kg ha-1) in the form of urea. The study was divided into two areas with distinct contents of SOM. In the area with the lowest content of SOM (3.55 dag...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cicer arietinum L.; N doses; Soil organic matter.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100229

Evaluation of water requirement, commercial quality, and yield response factor of gladiolus produced with automated irrigation in different growing periods
Provedor de dados: 64
Autores: Santos,Jaqueline Jesus Santana dos; Pêgo,Rogério Gomes; Couto,Beatriz Rodrigues Monteiro; Bueno,Mateus Marques; Carvalho,Daniel Fonseca de.
ABSTRACT Water management and meteorological conditions during the cropping phase play an essential role in maintaining the commercial quality of cut flowers. This study evaluates water requirement, sensitivity to water deficit, and commercial quality of gladiolus ‘Amsterdam’ produced with automated irrigation in different growing periods. The experimental design was in randomized blocks with five replicates and consisted of the growing period factors (winter/spring 2018 and autumn/winter 2019) and the irrigation level factors (45% - L1, 60% - L2, 80% - L3, and 100% - L4 of crop water requirement). An automatic irrigation controller was used for irrigation management. At the harvest point, we evaluated the stems for the diameter, number of flowers, spike...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gladiolus x grandiflorus Hort.; Irrigation water management; Degree-days; Protected cultivation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100242

Multispectral aerial images for the evaluation of maize crops
Provedor de dados: 64
Autores: Hoss,Douglas Felipe; Luz,Gean Lopes da; Lajús,Cristiano Reschke; Moretto,Marcos Antônio; Tremea,Geraldo Antonio.
ABSTRACT The combination of multispectral aerial images and computational processing is emerging as one of the solutions used in precision agriculture to observe the nutritional status of plants. The objective of this study is therefore to associate the nitrogen content and dry weight of the aerial part of maize plants (DW) with the vegetation indices obtained by multispectral aerial images (NDVIA and NDREA), and with the SPAD index and the Greenseeker NDVI, in the vegetative stage V6. To this end, randomized blocks in a factorial scheme of 6x4 (six nitrogen doses at the base and four different flight altitudes) were used, with three replications. The collected data was submitted to ANOVA with the F test (p = 0,05) and subsequent regression analysis. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Precision agriculture; Nitrogen; Computational processing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100216

Roles of arbuscular mycorrhizal fungi on acclimatization of clones of Coffea arabica L. produced by somatic embryogenesis
Provedor de dados: 64
Autores: Fonseca,Arley José; Tassone,Guilherme Augusto Teixeira; Carneiro,Marco Aurélio Carbone; Carvalho,Gladyston Rodrigues; Carvalho,Carlos Henrique Siqueira; Botelho,Cesar Elias.
ABSTRACT The production of Coffea arabica L. clone seedlings through the somatic embryogenesis technique is one of the alternatives of greatest demand for coffee producers. However, clones can face difficulties related to acclimatization carried out under greenhouse conditions, which can increase the production costs. A tested alternative with promising results is inoculation with arbuscular mycorrhizal fungi (AMF) during the seedling acclimatization process. Thus, this study aimed to promote the improvement of the seedling production process through somatic embryogenesis associated with inoculation with AMF. For the production of the clones, seedlings were used in the phase when they presented four pairs of leaves (Clone 1 “Fruiting red Catucaí” and Clone...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Propagation; Rooting; Clones; Mycorrhizae; Mineral nutrition.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100222

Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants
Provedor de dados: 64
Autores: Almeida,Gabriel Martins; Silva,Adinan Alves da; Batista,Priscila Ferreira; Moura,Luciana Minervina de Freitas; Vital,Roberto Gomes; Costa,Alan Carlos.
ABSTRACT Drought is the most harmful environmental factor crop productivity. Some chemicals are used in agriculture to mitigate the damage from this stress on plants. Therefore, we examined whether the spraying of zinc sulfate (ZS), potassium phosphite (KPhi) and the hydrogen sulfide (H2S) donor sodium hydrosulfide (NaHS) would mitigate the deleterious effects of water deficit on sunflower plants by analyzing physiological and biometric characteristics. The experiment was carried out in a greenhouse using a randomized block design with five replications. The treatments were arranged in a 4 x 2 factorial scheme: [Factor A (Alleviators)] - spraying of KPhi (0.5 L ha-1), ZS (3.2 kg ha-1), NaHS (1.2 g ha-1), and water; [Factor B (substrate humidity, SH)] -...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Photosynthesis; Water deficit; Malonaldehyde; Leaf water potential; Mitigating substance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100225

Allometric models for estimating Moringa oleifera leaflets area
Provedor de dados: 64
Autores: Macário,Ana Paula Silva; Ferraz,Rener Luciano de Souza; Costa,Patrícia da Silva; Brito Neto,José Félix de; Melo,Alberto Soares de; Dantas Neto,José.
ABSTRACT Moringa oleifera is a species of great economic, social and environmental importance, being employed for multiple purposes. Thus, the objective of this study was to fit regression models for estimating leaflets area as non-destructive method from linear measurements of leaflets of M. oleifera seedlings. The study was carried out at the Center for Agrarian and Environmental Sciences of the Paraíba State University. Three hundred leaflets of M. oleifera were collected and measured to determine length “L” and width “W” and, subsequently, leaflets area was quantified through ImageJ® software. Using 200 leaflets, the univariate regression models were fitted, adopting length, width or the product of these dimensions “LW” and a bivariate model based on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Linear measurements; Empirical modeling; Model validation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100212

Fungal and bacterial population from spent mushroom substrate used to cultivate tomato plants
Provedor de dados: 64
Autores: Moraes,Tatiana Silveira Junqueira de; Costa,Lívia Martinez Abreu Soares; Souza,Thiago Pereira; Collela,Carolina Figueiredo; Dias,Eustáquio Souza.
ABSTRACT The production of tomato seedlings is conducted on commercial substrates with adequate properties for the good formation of the aerial part and root. The Spent Mushroom Substrate, or SMS, presents advantages over commercial substrates regarding the quality of the vegetable seedlings, which may be provided by the presence of a rich microbiota, bringing higher balance and competition with pathogenic microorganisms, in addition to the biological control of pathogens and nematodes. It is important to know the microbiota present in this material and its relation to the plant, in order for this association to occur in the best manner possible. This work had the objective of identifying the microbiota present in the rhizosphere of tomato seedlings...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agaricus sp.; Lycopersicon esculentum; Seedling production; SMS.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100224

Effect of salinity stress in Setaria viridis (L.) P. Beauv. accession A10.1 during seed germination and plant development
Provedor de dados: 64
Autores: Ferreira,Thalita Massaro Malheiros; Santos,Mariana de Lima; Lopes,Cecilia Lima; Sousa,Carlos Antonio Ferreira de; Souza Junior,Manoel Teixeira.
ABSTRACT Setaria viridis (L.) P. Beauv. is a species proposed to be used as model plant in reverse genetics studies for the validation of gene function. Soil salinity is a recurring problem present in more than a 100 countries worldwide, and approximately 20% of the agricultural land in the world has saline and/or sodium soils. Saline stress affects all the main processes of the plant, such as germination, growth, and, consequently, the yield. The present study aimed at determining the tolerance levels of S. viridisA10.1 to saline stress and identify its potential as a model plant to validate salt-tolerance candidate genes/alleles as well as promoter sequences from salt-responsive genes. In an initial experiment, the seeds of the plant were sown on a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic stress; Phenomics; Biosaline agriculture; Plant biotechnology; Salt responsive genes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100244

Combining ability of physiological traits in forrage maize
Provedor de dados: 64
Autores: Redivo,Greice Daiane Rodrigues Gomes; Faria,Marcos Ventura; Rosa,Jocimar Costa; Ono,Elizabeth Orika; Rodrigues,João Domingos; Adriano,Elisa.
ABSTRACT The exploitation of the existing genetic variability for the physiological traits related to the yield and quality of maize forage can assist in the development of superior inbred lines and hybrids. The objective of this work was to evaluate the general and the specific combining ability and the nature of gene effects of physiological and chemical traits of forage maize genotypes. Two groups of genotypes and 16 hybrids resulting from a 4x4 partial diallel scheme were evaluated. Group I consisted of two commercial hybrids (AG8025, P30B39) and two elite inbred lines (LEM2 and LEM3). Group II consisted of four experimental inbred lines originated from different populations of forage maize breeding program. In total, 24 treatments were evaluated,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CO2 assimilation; Stomatal conductance; Internal CO2 concentration; Water efficiency; Gaseous exchanges.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100246

Alternative sugarcane production for conservation of sandy soils: sugarcane straw, intercropping and nitrogen
Provedor de dados: 64
Autores: Carneiro,Leandro Flávio; Oliveira,Ricardo Augusto de; Weber,Heroldo; Daros,Edelclaiton; Berton,Guilherme Souza; Rodrigues,Fábio Vieira.
ABSTRACT The expansion of sugarcane cultivation in the Center-South region of Brazil has led to the use of, mainly, areas with low-yielding sandy soils. In this context, the objectives of this study were to evaluate the maintenance of the sugarcane straw, Brachiaria grass intercropping in sugarcane fields and nitrogen fertilization and on sandy soils in the state of Paraná. The field experiment was installed in the Paranavaí-PR city, at a unit of the Interuniversity Network for the Development of the Sugarcane Sector (RIDESA). The soil was classified as Latossolo Vermelho-amarelo distrófico. The treatments in the plant cane stage, consisting of four nitrogen rates (0, 50, 100 and 150 kg ha-1) and monoculture or Brachiaria grass intercropping in sugarcane...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Light soils; Brachiaria; Management and conservation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100223

Estimation of sediments produced in a subbasin using the Normalized Difference Vegetation Index
Provedor de dados: 64
Autores: Lense,Guilherme Henrique Expedito; Moreira,Rodrigo Santos; Bócoli,Fernanda Almeida; Avanzi,Junior Cesar; Teodoro,Alexandre Elias de Miranda; Mincato,Ronaldo Luiz.
ABSTRACT Among the parameters considered by the Revised Universal Soil Loss Equation (RUSLE), the soil cover and management factor (C) is the main human influenced factor affecting the estimation of water erosion, and one of the most sensitive to spatiotemporal variations. Consequently, this study aims to compare the efficiency of C factor estimates obtained from the literature for each land-use class (Clit) and by calculation based on the Normalized Difference Vegetation Index (CNDVI). We test the hypothesis that soil loss estimates based on CNDVI approach are more accurate than those based on Clit. Water erosion was estimated based on soil morphological, physical, and chemical properties in addition to climate, relief, management practices, and land use...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil conservation; Water erosion; Modeling; RUSLE.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100214

Effect of molecular weight on hypolipidemic and hypoglycemic activities of fermented Auriculaia auricula supernatant
Provedor de dados: 116
Autores: BAO,Yi-Hong; SUN,Kai-Feng; GUO,Yang.
Abstract Auriculaia auricula is considered as species of Mu Er in Chinese medicine and today are used interchangeably. A. auricula polysaccharides have been shown anti-cholesterol and anti-hyperglycemia. The aim of this research was to investigate the hypolipidemic and anti-hyperglycemic effects of extracts from different molecular weight fragments of A. auricula fermentation supernatant (AAFS). A. auricula was through mixed fermentation by Saccharomyces cerevisiae and Bifidobacterium. The results shown that with the molecular weight of AAFS increases, the ability to lower blood lipids and blood glucose gradually increases. In the lowering blood lipids, the AAFS of above 300 kDa has the strongest sodium bovine cholate binding capacity and sodium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Auriculaia auricula; Fermentation; Hyperglycemia; Hyperlipidemia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005006201

Anti-obesity and hepatoprotective effects in obese rats fed diets supplemented with fruit purees
Provedor de dados: 116
Autores: MORALES-ÁVILA,Úrsula Mireya; BECERRA-VERDÍN,Eduardo Mendeleev; SÁYAGO-AYERDI,Sonia GUADALUPE; TOLMAN,John P.; MONTALVO-GONZÁLEZ,Efigenia.
Abstract In this work, the effect of the intake of a low-fat diet supplemented with a fruit puree (guava-strawberry, guava-blackberry, guava-soursop or guava-passion fruit) by obese rats on reduction of body weight, lipid profile, and liver enzyme activity was evaluated. The rats (n=6 for each treatment) were induced to obesity with a high-fat diet for 4 weeks, then they were fed with a low-fat diet plus a fruit puree for 4 weeks. Healthy rats and obese rats fed with standard diet as controls were considered. The additional consumption of fruit purees was associated with a reduction in body weight (16-24%), a control in the metabolism of plasma lipids decreasing the levels of total cholesterol (59-68%) and triacylglycerols (61-82%). We found a significant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fruit purees; Anti-obesity; Liver enzymes; Hepatoprotective.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005004203

Gluten-free pasta: development of a new formulation based on rice and lupine bean flour (Lupinus Mutabilis) using a mixture-process design
Provedor de dados: 116
Autores: ALBUJA-VACA,David; YÉPEZ,Christian; VERNAZA,Maria Gabriela; NAVARRETE,Danny.
Abstract Gluten-free pasta was developed by substituting rice flour (RF) with lupin flour (LF). The factors tested were the substitution of RF by LF (10g/100g -30g/100g), egg (8g/100g -30g/100g) and guar gum (0.15g/100g -1g/100g) using a mixture-process design. Seven response variables were measured. Luminosity, ash content, protein content, chrome, hue, weight gain and loss of solids were explained by mixture-process models (p&lt;0.05). LF was a significant factor due to its high protein and mineral content. A sensory analysis was performed to quantify consumer acceptance. The best formulation was obtained with 20g/100g LF, 30g/100g egg and 0.15g/100g guar gum. A proximate analysis was performed in order to compare it with a control sample (100% rice...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Celiac disease; Gluten-free pasta; Lupinus Mutabilis; Mixture-process design.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200408

Artificial neural network for determining the hedonic score of texture of and distinguishing different grades of ham sausages
Provedor de dados: 116
Autores: ZHU,Lintao; WU,Wenbiao.
Abstract The preference of consumers of ham sausages is mainly determined on its texture. A method of determining hedonic score of texture and distinguishing different grades of ham sausages based on artificial neural network was established in this study. The topological texture of the artificial neural network was developed on the basis of analyzing the hardness, springiness, cohesiveness and adhesiveness measured by a texture analyzer and the hedonic score of texture measured by a sensorial test. The simulation result indicated that the hedonic score of texture predicted by the artificial neural network was well correlated with that obtained by the sensorial test and they were not significantly different from each other. Particularly, cluster analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Texture profile; Sensorial test; BP neural network; Gelling foods.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100046

Optimization and release evaluation for tea polyphenols and chitosan composite films with regulation of glycerol and Tween
Provedor de dados: 116
Autores: PENG,Yong; WANG,Qingguo; SHI,Jingying; CHEN,Yilun; ZHANG,Xiaoyan.
Abstract In order to optimize the performance of chitosan-tea polyphenols composite films, effects of glycerol and Tween on the antioxidative activities and physical performance of chitosan composite films were evaluated. The results indicated that both flexibility and water vapour permeability of chitosan/tea polyphenols films were improved with the addition of glycerol, meanwhile the solubility and swelling degree decreased. Moreover, the release time of antioxidants from films was delayed with the addition of glycerol. The presence of Tween 20 had no significant effect on the tensile strength of films, but changed the DPPH radical scavenging activity depending on the blend ratio of glycerol and Tween. DSC, FTIR and X-ray analysis showed strong...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitosan film; Green tea polyphenols; Optimization; Antioxidant ability; X-ray diffraction.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100162

Characterization of Lactobacillus plantarum strains isolated from Turkish pastırma and possibility to use of food industry
Provedor de dados: 116
Autores: DINCER,Emine; KIVANC,Merih.
Abstract Five Lactobacillus plantarum strains (which were previously isolated from Turkish pastırma), were evaluated for the possibilities of using in the food industry. Antimicrobial properties, metabolic activities, exopolysaccharide production and antibiotic resistance were investigated. It was also assessed probiotics features such as adhesion ability, survival in simulated gastric environment and acid tolerance analysis. Antimicrobial activity was characterized based on effects of several enzymes, different temperature and pH. All strains showed remarkable antimicrobial activity and antimicrobial substances were found resistant to enzymes, high temperature and low pH. Metabolic activities and exopolysaccharide production of the strains were found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial activity; Lactic acid bacteria; Lactobacillus plantarum; Probiotic; Starter culture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200498

Postharvest 1-methylcyclopropene treatments maintain the quality of Rosa sterilis D. shi during storage
Provedor de dados: 116
Autores: Guofang,XIE; Lirong,WANG; Kuanxiu,FAN; Na,LIU; Yongling,LIU; Zhibing,ZHAO.
Abstract Effects of different concentrations of aqueous 1-methylcyclopropene (1-MCP) on Rosa sterilis D. shi fruits were investigated. The fruits were harvested at commercial maturity stage and treated with 1-MCP treatment at 0.5, 1.0, and 1.5 μL L-1 for 20 h at 25 °C in an air tight chamber along with control sample to evaluate the effect of 1-MCP concentration on its quality during storage. The result showed that postharvest treatment with 1.0 μL L-1 1-MCP suppressed the respiration rate, ethylene production rate and POD activity in Rosa sterilis D. shi fruits, inhibited the transport of reducing sugar and the increase of cellulose, delayed the increase in PPO activity, and retarded the decrease in ascorbic acid. The regulation of fibrosis process with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rosa sterilis D. shi; 1-MCP; Quality; Storage.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100089

Structural and physicochemical properties of freeze-dried açaí pulp (Euterpe oleracea Mart.)
Provedor de dados: 116
Autores: OLIVEIRA,Aryane Ribeiro; RIBEIRO,Alline Emannuele Chaves; OLIVEIRA,Érica Resende; GARCIA,Marina Costa; SOARES JÚNIOR,Manoel Soares; CALIARI,Márcio.
Abstract The objective of this study was to characterize the structural and physicochemical properties, the bioactive compounds and the antioxidant activity of freeze-dried açaí pulp (FDAP). The morphology of freeze-dried açaí pulp showed a continuous matrix with a spongey aspect, and the X-ray diffractometry indicated that 96.17% of the molecular structure was in the amorphous state and 3.82% in the crystalline state. Freeze-dried açaí pulp presented an interesting chemical composition of macronutrients, which constituted mainly of lipids (49.14 g/100 g d.b.), proteins (9.19 g/100 g d.b.), total crude fiber (20.29 g/100 g d.b.) and total sugars (2.71 g/100 g d.b.). It also showed great amount of total phenolic compounds (1405.03 mg gallic acid/100 g d.b.)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scanning electron microscopy; Infrared; Differential scanning calorimetry; X-ray diffractometry; Phenolic compounds.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200282

Methods for and pigments extration and determination of color in tomato for processing cultivars
Provedor de dados: 116
Autores: VIEIRA,Darlene Ana de Paula; CALIARI,Márcio; SOUZA,Eli Regina Barboza de; SOARES JÚNIOR,Manoel Soares.
Abstract  The aim of this research was compare methods for pigments extraction and color determination in different tomato for processing cultivars, and choose the most promising materials for the industry. The tomatoes for processing studied were of the IT761, H9992, H9553, AP533, Advance, N901, BRSena, U2006, HY26, HY37 and HY68 cultivars. The extraction yields of lycopene and β-carotene using acetone and the mixture of ethanol, acetone and hexane (10:10:20) were determined, and the parameters of color were determined by colorimetric and digitals image methods (Cielab and Hunterlab), besides other physicochemical characteristics. The mixture of solvents is more efficient in the extraction of lycopene and β-carotene than acetone on its own. The methods of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopene; Β-carotene; Colorimetry; Digital image; Total soluble solids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100011

Different cooking styles enhance antioxidant properties and carotenoids of biofortified pumpkin (Cucurbita moschata Duch) genotypes
Provedor de dados: 116
Autores: MOREIRA,Lara de Azevedo Sarmet; CARVALHO,Lucia Maria Jaeger de; CARDOSO,Flávio da Silva e Souza Neves; ORTIZ,Gisela Maria Dellamora; FINCO,Fernanda Dias Bartolomeu Abadio; CARVALHO,José Luiz Viana de.
Abstract Biofortification is an important technique where the nutritional quality of food crops is enriched through the increase of nutrient content. Provitamin A deficiency is still a public health concern mainly in developing countries. Since beta-carotene is a vitamin A precursor, the increase of this compound in foods through biofortification is a manner to reach people under hidden hunger condition. This work aimed to evaluate the effect of different cooking styles on carotenoids content and antioxidant activity of two different genotypes of biofortified Cucurbita moschata. In the present study, biofortified pumpkins submitted to different cooking conditions were assessed for antioxidant activity by ABTS, DPPH, β-carotene/linoleic acid systems and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pumpkin; Antioxidant activity; Carotenoids; Cooking; Biofortification.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200302

Exploring consumers’ knowledge and perceptions of unconventional food plants: case study of addition of Pereskia aculeata Miller to ice cream
Provedor de dados: 116
Autores: MAZON,Suelen; MENIN,Daiana; CELLA,Bruna Marina; LISE,Carla Cristina; VARGAS,Thiago de Oliveira; DALTOÉ,Marina Leite Mitterer.
Abstract Unconventional food plants (UFPs) are by definition little known and infrequently consumed by population, although are recognized as having high nutritional value and economic potential. The objective was to assess the knowledge about UFPs by the population in the southwestern region of the state of Paraná, Brazil; and more particularly to evaluate the holistic perception of an ice cream prepared with the UFP ora-pro-nóbis, a plant that is gaining attention in recent years We applied a questionnaire to assess knowledge of several UFPs; check-all-that-apply questions to evaluate the knowledge, habits and perceptions regarding UFPs; and word association (WA) and acceptance tests for holistic and hedonic evaluation of the ice cream. The results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check-all-that-apply; Correspondence analysis; Ora-pro-nóbis; Word association.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100215

Quality enhancement of fermented vegetable juice by probiotic through fermented yam juice using Saccharomyces cerevisiae
Provedor de dados: 116
Autores: YANG,Fan; WANG,Yu-peng; ZHAO,Hua.
Abstract As the demand for probiotic foods continues to increase and lactose intolerance is common, it is necessary to develop a range of non-milk probiotic beverages. The purpose of this study was to evaluate the preparation process of fermented probiotic beverages using various vegetables as raw materials, and to evaluate the chemical and organoleptic properties of the mixed fermented vegetable juices. The mixed fermented vegetable juice was a beverage obtained by mixing the vegetable juice (purple cabbage, tomato and carrot) fermented by Lactobacillus plantarum and the yam juice fermented by the yeast in an appropriate ratio. During lactobacillus fermentation (48 hours at 30 °C), the cell count of Lactobacillus plantarum increased from 7.49 ± 0.21 log...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactobacillus plantarum; Vegetable juice; Saccharomyces cerevisiae; Chinese yam; Probiotic fermentation; Sensory evaluation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100026

Effects of bagging or the combination of umbrella and bag treatments on anthocyanin accumulation in the berry skin of ‘Kyoho’ (Vitis labruscana) Grape
Provedor de dados: 116
Autores: ZHOU,Si-Hong; GUO,Rong-Rong; WEI,Rong-Fu; LIU,Jin-Biao; YU,Huan; SHI,Xiao-Fang; ZHANG,Ying; XIE,Tai-Li; CHENG,Guo.
Abstract The object of this study was to investigate the influence of bagging or the combination of umbrella and bags on berry composition, especially anthocyanin accumulation, in ‘Kyoho’ (V. labruscana) berry skins. Five different colors and bag materials commonly used in production were chosen for this study: white, green, yellow, nonwoven and transparent, and the umbrellas were made of plastic material. The composition and content of anthocyanins in the berry skin of ‘Kyoho’ were analyzed by HPLC-MS. The results showed that bagging or a combination of umbrella and bags on anthocyanin concentration in ‘Kyoho’ grapes showed inconsistent effects that depended on the colors and materials of the bags and the use of an umbrella or not. Compared with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bagging; Umbrella; Anthocyanin; ‘Kyoho’; Grape.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200394

Effect of drying temperature on color and desorption characteristics of oyster mushroom
Provedor de dados: 116
Autores: Engin,Demiray.
Abstract Oyster mushroom (Pleurotus ostreatus) slices were dried in a hot air dryer at three temperatures (45, 55 and 65 °C). The sorption isotherm of dried samples in the water activity (aw) range of 0.556-0.970 was also determined at three temperature levels. Moisture desorption isotherms were obtained from changes in water activities of oyster mushroom slices during drying, and the fitness of GAB, BET, Oswin, Henderson and Halsey isotherm equations to sorption data was calculated. The effect of temperature on color change kinetics of oyster mushroom slices was also investigated during drying. GAB model was the best equation for the prediction of the desorption moisture content of samples. Mathematical modeling of color change kinetics indicated that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oyster mushroom; Drying; Sorption isotherm; GAB model; Color.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100187

Antioxidant and prebiotic effects of a beverage composed by tropical fruits and yacon in alloxan-induced diabetic rats
Provedor de dados: 116
Autores: DIONISIO,Ana Paula; CARVALHO-SILVA,Luciano Bruno de; VIEIRA,Nara Menezes; WURLITZER,Nedio Jair; PEREIRA,Ana Carolina da Silva; BORGES,Maria de Fatima; GARRUTI,Deborah dos Santos; ARAÚJO,Idila dos Santos.
Abstract The aim of this study was to evaluate the antioxidant and prebiotic effect of a beverage composed by tropical fruits and yacon in alloxan-induced diabetic rats. To obtain the beverage, a Response Surface Methodology was used, with concentration of yacon extract (x1) and the sweetener (x2) added to a mixture of tropical fruits as independent variables, and the sensorial acceptance as response. The optimized beverage showed higher values for antioxidant capacity, measured by ABTS, FRAP and DPPH assays. Thus, the fructooligosaccharides content (2.32 ± 0.65 g FOS/100 g), total phenolic (126.83 ± 9.48 mg gallic acid equivalent/100 g) and ascorbic acid (171.64 ± 7.31 mg/100 g) shows that the beverage contains high levels of these bioactive compounds. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diabetes; Oxidative estress; Antioxidants; Tropical fruits; Prebiotics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100202

Low fat goat meat sausage with chitosan-glucose Maillard reaction product: impact on quality and shelf life
Provedor de dados: 116
Autores: AMARAL,Deborah Silva do; CARDELLE-COBAS,Alejandra; DIAS,Celina de Castro Querino; LIMA,Darlinne Amanda Soares; PEREIRA,Sérgio de Ferreira; ARCANJO,Naciza Maria de Oliveira; DALMÁS,Paulo Sérgio; MADRUGA,Marta Suely; PINTADO,Maria Manuela Estevez.
Abstract Low fat fresh goat sausages based on chitosan (LMWC) and derivative chitosan (LMWC-Glc) were developed aiming to produce a functional food product evaluating the effect of inclusion of these compounds on quality, stability and shelf life. Goat sausages (10% pork fat) were formulated with 2% (w/w) of LMWC or LMWC-Glc and stored at 4 °C during 21 days. Results indicated that incorporation of LMWC-Glc and LMWC is technologically feasible, originating a potential functional product with low fat content, besides the positive impact on microbial safety. The modified LMWC (towards better solubility and lower adstringency) incorporated at 2% as functional ingredient maintained positive effect on antimicrobial, nutrional, textural and sensory performance....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitosan; Chitosan-glucose; Functional meat product; Fat reduction.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100132

Characterization of hydrolysates of collagen from mechanically separated chicken meat residue
Provedor de dados: 116
Autores: SCHMIDT,Michele Mantelli; FONTOURA,Andrine Menna da; VIDAL,Alessandra Roseline; DORNELLES,Rosa Cristina Prestes; KUBOTA,Ernesto Hashime; MELLO,Renius de Oliveira; CANSIAN,Rogério Luis; DEMIATE,Ivo Mottin; OLIVEIRA,Cristina Soltovski de.
Abstract Obtaining collagen and hydrolysates from mechanically separated chicken meat residue is an excellent way to add value to this waste. The aims of this study were to obtain collagen hydrolysates from chicken MSM residue using Alcalase® and Flavourzyme® enzymes, as well characterizing the functional, structural and thermal stability properties. The highest degree of hydrolysis was obtained using Alcalase®, 36.11%, while using Flavourzyme® resulted in 12.02%. The DSC analysis of the collagen indicated a denaturation temperature of 46.47 °C. The FTIR spectra of the crude collagen showed absorption peaks that were characteristic of amide bands A, B, I, II and III. In the spectra of the hydrolysed the area of ​​the amide bands was reduced, and some peaks...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alcalase®; Electrophoresis; Flavourzyme®; FTIR; Functional properties.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005006203

Evaluation of extruded corn breakfast cereal enriched with whole peach palm (Bactris gasipaes, Kunth) Flour
Provedor de dados: 116
Autores: SANTOS,Ivone Lima; SCHMIELE,Marcio; AGUIAR,Jaime Paiva Lopes; STEEL,Caroline Joy; SILVA,Edson Pablo; SOUZA,Francisca das Chagas do Amaral.
Abstract The present study aimed to develop extruded corn breakfast cereal enriched with whole peach palm flour. A 22 central composite rotatable design was used, and the cereal was processed in a ZKS-30 co-rotational twin-screw extruder (Werner and Pfleiderer), followed by its physicochemical, technological and microbiological characterization. The technological analysis revealed higher expansion and lower hardness as well as adequate lightness and water-absorption and water-solubility indices of the breakfast cereal at low moisture and intermediate peach palm flour contents. Moreover, 3.84% moisture, 0.63% ash, 6.09% protein, 0.39% lipids, 85.94% carbohydrates, 3.11% fiber and 246 RE of total carotenoids were found in the physicochemical analysis, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Extrusion; New products; Peach palm tree; Substitution; Characteristics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200458

Pseudomonas SP. in uninspected raw goat’s milk in Rio de Janeiro, Brazil
Provedor de dados: 116
Autores: RAMOS,Gustavo Luis de Paiva Anciens; NASCIMENTO,Janaína dos Santos.
Abstract Although quite controversial from the point of view of food safety, a considerable number of people across different age and socioeconomic groups consume raw goat’s milk. Even if refrigerated after milking, raw goat's milk may still be susceptible to the lipolytic and proteolytic actions of psychrotrophic microorganisms, such as Pseudomonas. In this study, Pseudomonas sp. from 21 refrigerated raw goat’s milk samples were characterized. All samples were freely commercialized, without any type of inspection, by small producers and markets from different regions of Rio de Janeiro, Brazil. A total of 136 isolates were identified, most of which belonged to the species, P. putida, P. koreensis, P. monteilii, and P. fluorescens. The production of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Refrigerated raw goat’s milk; Pseudomonas spp.; Antibiotic susceptibility; Proteolytic and lipolytic activity; Biofilm production; Antibiotic resistance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005007203

Production of flour made from bullfrog’s meat and bone
Provedor de dados: 116
Autores: SEIXAS FILHO,José Teixeira de; IDE,Laura Kiyoko; MELLO,Sílvia Conceição Reis Pereira; CAFIERO,Joyce Tarsia Garcia; RODRIGUES,Eliane.
Abstract Bullfrog meat marketed in Brazil has been gaining ground among the population due to its soft flavor, low calorie content, and high protein content. It is recommended for treating gastrointestinal and allergic diseases. This study aims to maximize the use of bullfrog carcass by applying a heating technology that enables the use of bones in gastronomy, which contain high calcium bioavailability, and represent about 40% of the product’s total weight. A meat-and-bone flour called Low Cost Alternative Food has been developed, which, in addition to being functional and rich in protein and calcium, presents similar flavor to that of unmixed bullfrog meat, allowing food enrichment. Dehydration of the skeleton was carried out in an oven, and the remaining...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frog meat; Diet; Functional food; Gastronomy; Good manufacturing practices.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005205

The combined effect of exposure time to sodium chlorite (NaClO2) solution and packaging on postharvest quality of white button mushroom (Agaricus bisporus) stored at 4 °C
Provedor de dados: 116
Autores: TARLAK,Fatih; OZDEMIR,Murat; MELIKOGLU,Mehmet.
Abstract Agaricus bisporus was washed with 1 g/L sodium chlorite (NaClO2) (SC) solution for 30, 60 and 120 s, packed with a non-perforated polyvinyl chloride (PVC) film and stored at 4 °C for 12 days. Washing the mushrooms with the SC solution and packaging with the PVC film slowed down the change in colour and firmness of the mushrooms, but treating the mushrooms with the SC solution longer than 60 s adversely affected the mushroom texture. After 12 days of storage, the weight loss of the mushrooms packed with the PVC film was less than 10% compared to the control. Headspace O2 concentration decreased while CO2 concentration increased throughout 12 days of storage and reached about 15% and 4%, respectively. Pseudomonas spp. counts for unwashed and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mushroom spoilage; Sodium chlorite; Packaging; Pseudomonas spp.; Shelf-life.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005209

Effects and mechanisms of water-soluble Semen cassiae polysaccharide on retinitis pigmentosa in rats
Provedor de dados: 116
Autores: HE,Suiqin; MA,Xiang; MENG,Qinggui; LU,Jianmin; QIN,Xiuhong; FANG,Shifeng; MA,Cong.
Abstract This study aimed to investigate the effects and mechanisms of water-soluble Semen cassiae polysaccharide (SCP) on retinitis pigmentosa (RP) in rats. One hundred rats were randomly divided into control, model, and 50, 100 and 200 mg/kg SCP groups. The 50, 100 and 200 mg/kg SCP groups were treated with 50, 100 and 200 mg/kg SCP for 5 days, respectively. On the sixth day, the model, and 50, 100 and 200 mg/kg SCP groups were treated with N-nitroso-N-methylurea (MNU). After 12 h and 5 days, the electroretinogram, retinal thickness, apoptosis of retinal photoreceptor cells, and expressions of apoptosis related protein in retina tissue were determined. Results showed that, after 12 h and on 5 days from MNU treatment, compared with model group, the a-wave...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polysaccharide; Semen cassiae; Retinitis pigmentosa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100084

Enhanced antioxidant activity of okara through solid state fermentation of GRAS Fungi
Provedor de dados: 116
Autores: SITANGGANG,Azis Boing; SINAGA,Wenny Silvia Loren; WIE,Felicia; FERNANDO,Franz; KRUSONG,Warawut.
Abstract The enhancement of antioxidant activity of fermented okara was investigated using fungal solid-state fermentation. The initial fungal concentration and water activity were found to influence the enhanced antioxidant capacity of fermented okara. Extracellular enzymes, especially proteases and carbohydrases might facilitate the hydrolysis of okara protein that yielded antioxidative amino acids and peptides, as well as the release of isoflavones-derived components. Fermentation of okara with R. oligosporus with 1.04×10-3 gDCW/gokara as initial concentration, water activity of 0.931 was found to yield the highest antioxidant strength. Whereas for A. Oryzae, 1.6×10-3 gDCW/gokara was optimum as the initial concentration with water activity of 0.913....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; A. oryzae; Okara; R. oligosporus; Solid-state fermentation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100178

Effect on Merlot red wine of fining agents mixture: application of the simplex centroid design
Provedor de dados: 116
Autores: FICAGNA,Evandro; GAVA,Angelo; ROSSATO,Simone Bertazzo; ROMBALDI,César Valmor; BORSATO,Dionísio.
Abstract In the elaboration of young red wine, it is necessary to obtain a clear product with stable color. The clarity and stability can be obtained using fining agents. The objective of this study was to evaluate the combined effect of fining with pea protein isolate (PPI), bentonite, and polyvinylpyrrolidone (PVPP) on a red wine, using the experimental design of mixtures. Merlot wine was used to evaluate the changes on monomeric flavan-3-ol, turbidity and anthocyanin levels promoted by the fining compounds. For all the parameters, the adjusted models showed influence of the combination of the three fining agents. Together, bentonite and PVPP have synergistic effect on the reduction in monomeric flavanol levels. Such synergistic effect was also observed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pea protein isolate; PVPP; Bentonite; Anthocyanins; Monomeric flavan-3-ols; Turbidity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005001202

Sensory attributes and Lipid oxidation of smoked lamb sausage formulated with passion fruit meal, potassium chloride and calcium chloride
Provedor de dados: 116
Autores: MAIA JUNIOR,Jonhny de Azevedo; HENRY,Fábio da Costa; DELLA LUCIA,Suzana Maria; SANTOS JUNIOR,Alexandre Cristiano; CABRAL,Natália de Oliveira; QUIRINI,Célia Raquel; VALLE,Felipe Roberto Amaral Ferreira.
Abstract This study evaluated the sensory attributes and lipid peroxidation of smoked lamb sausage prepared with passion fruit meal, potassium chloride and calcium chloride. The samples were produced and smoked at Instituto Federal do Espírito Santo, where they were kept vacuum packed and frozen until laboratory analysis. The formulations with passion fruit meal presented lower weight loss by smoking. No microbiological growth was detected in the 90-day study period. Formulation 1 was the best in the attributes color, aroma, flavor, texture, overall impression and purchase intention. The use of passion fruit meal to replace fat, potassium chloride and calcium chloride did not affect oxidation of the product during the study period. The addition of passion...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reduced fat; Low sodium; Loss by smoking; Microbiology; TBARS.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200423

Brazilian food labeling: a new proposal and its impact on consumer understanding
Provedor de dados: 116
Autores: JACINTHO,Carolina Lôbo de Almeida Barros; JARDIM,Paulo César Brandão Veiga; SOUSA,Ana Luiza Lima; JARDIM,Thiago Souza Veiga; SOUZA,Weimar Kunz Sebba Barroso.
Abstract The difficulty in understanding food labels demands their reformulation. The objective was to elaborate a proposal of nutritional labeling and to compare its understanding with current labels. A cross-sectional study was conducted in 2016. Socioeconomic and health data were collected and questionnaires were used to evaluate reading and comprehension of the current label (Group A) and the proposed label (Group P). Student's t test and chi-square test (p &lt;5%) were applied. A total of 980 consumers participated at supermarkets in a Brazilian capital, with 38.2 ± 13.9 years old, predominantly women, high school, family income of 2 to 4 minimum wages, without chronic disease, and Body Mass Index of 25,6 ± 4.7 kg/m2. Reading and comprehension were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food labeling; Nutritional facts; Industrialized foods; Food.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100222

Protein enrichment of wheat flour doughs: empirical rheology using protein hydrolysates
Provedor de dados: 116
Autores: NOGUEIRA,Amanda de Cássia; OLIVEIRA,Renata Alves de; STEEL,Caroline Joy.
Abstract Protein enrichment of bakery products not only improves protein ingestion, but also compensates for the deficiency of certain limiting amino acids in these products. However, the addition of protein sources can greatly influence the characteristics of the dough and, consequently, process and product parameters. Thus, the objective of this work was to evaluate the rheological behavior of wheat flour doughs enriched with whey and collagen protein hydrolysates. Both hydrolysates influenced rheological properties of wheat flour doughs. They reduced water absorption and increased arrival time and dough development time, but caused a weakening of the dough when compared to the control. However, a greater influence of collagen hydrolysate was observed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Farinograph; RVA; Collagen; Whey protein.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005202

Changes in sugar contents and invertase activity during low temperature storage of various chipping potato cultivars
Provedor de dados: 116
Autores: AMJAD,Adnan; JAVED,Muhammad Sameem; HAMEED,Aneela; HUSSAIN,Majid; ISMAIL,Amir.
Abstract Storage of tubers is vital for uninterrupted supply to potato chips/fries industry. Cold storage is preferred to maintain tuber quality. However, prolonged storage at low temperature results in cold induced sweetening (CIS) leading to sugar accumulation and browning of chips. Slowing down the CIS is of economic importance for potato industry. Screening of potatoes after cold storage for low sugar and invertase activity with exploration of best frying color was the aim of current study. Reducing sugars (RS), invertase activity and chips color were estimated after subjecting the tubers at 3°C and 7°C storage. Analytical techniques were adopted for quantification of RS and invertase activity while nine-point Hedonic scale was used for chips color...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quality; Chips; Enzyme; Sugars; Storage.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200340

Metagenomic and metatranscriptomic analysis of the microbial community structure and metabolic potential of fermented soybean in Yunnan Province
Provedor de dados: 116
Autores: LIU,Xiao-Feng; LIU,Chen-Jian; ZENG,Xue-Qin; ZHANG,Hai-Yan; LUO,Yi-Yong; LI,Xiao-Ran.
Abstract Traditional fermented soybean contains a variety of microflora. To obtain a comprehensive and accurate understanding of the microbial community structure and metabolic potential of fermented soybean, comparative metagenomics and metatranscriptomics were performed on a sample of fermented soybean in Yunnan Province. Metagenomic DNA and metatranscriptomic RNA were sequenced using Illumina HiseqTM2500, which yielded a total of 92,192,276 reads, with an average read length of 150 bp and 38,798,262 paired-end sequences, with an average length of 151 bp. The results show that Providencia stuartii was the most abundant species and the genes of carbohydrates (2296, 13.30%), protein metabolism (1530, 8.86%), and amino acids and amino acid derivatives...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fermented soybean; Metagenomics; Metatranscriptomics; Microbial community.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100018

Processes for alcohol-free beer production: a review
Provedor de dados: 116
Autores: MULLER,Carlos; NEVES,Luis Eduardo; GOMES,Luciana; GUIMARÃES,Munique; GHESTI,Grace.
Abstract Since the invention of beer by the Sumerian people in 5000 BC, alcohol was the main reason of the interest of consumers on beer. Only in the beginning of the 20th century alcohol-free beer was demanded and since then technology has advanced dramatically in the production of those beverages. The aim on alcohol-free beer production is to have products that taste similarly to their alcoholic equivalents, the sole absence of alcohol and low concentrations of esters and higher alcohols and the higher concentration of aldehydes create a “worty” organoleptic impression of those products. Alcohol-free beers can be obtained by the restriction of alcohol formation during fermentation, the use of special yeast strains that consume or don’t produce alcohol,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alcohol-free beer; Membrane separation; Alcohol removal; Dealcoholized beer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200273

Optimization of ultrasound-assisted enzymatic extraction and in vitro antioxidant activities of polysaccharides extracted from the leaves of Perilla frutescens
Provedor de dados: 116
Autores: LI,Huizhen; ZHANG,Hongjiao; ZHANG,Zhijun; CUI,Lixia.
Abstract A Box-Behnken design was employed to optimize ultrasound-assisted enzymatic extraction of polysaccharides from perilla leaves. Four independent variables, namely, liquid-to-solid ratio, enzymatic time, enzymatic temperature, and ultrasonic power were investigated. Under the optimal liquid-to-solid ratio of 41:1, enzymatic time of 40 min, enzymatic temperature of 49 °C, and ultrasonic power of 204 W, the experimental polysaccharide yield was 3.84% (n = 3), which was close to the value predicted by response surface methodology (3.9%). Four polysaccharides (PLP1, PLP2, PLP3, and PLP4) were obtained with DEAE-cellulose-52 and Sephadex G-100 chromatography, and their antioxidant activities were investigated with various antioxidant assays in vitro. All...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Perilla leaves; Polysaccharide; Ultrasound-assisted enzymatic extraction; Antioxidant activities.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100036

Collagen production from chicken keel bone using acid and enzymatic treatment at a temperature of 30 °C
Provedor de dados: 116
Autores: CORDEIRO,Ana Rita Ribeiro de Araújo; BEZERRA,Taliana Kênia Alencar; QUEIROZ,Angela Lima Menêses de; GALVÃO,Mércia de Sousa; CAVALCANTI,Monica Tejo; PACHECO,Maria Teresa Bertoldo; MADRUGA,Marta Suely.
Abstract The aim of this study was to investigate the effect of acid pretreatment, temperature and enzyme concentration on the acid-enzymatic extraction of soluble collagen from chicken keel bone cartilage. A chemical composition analysis and protein profile characterization of this slaughter by-product were also conducted. The cartilages were extracted with 0.5 mol/L of acetic, lactic and citric acids for 24, 48 and 72 hours. Subsequently, optimization with a 22 factorial design was performed with three replications at the central point for a total of 7 experiments; the analyzed response was the collagen content of the obtained isolates. The cartilage under study has a high protein content (90.27% dry basis) consisting of approximately 35.7% collagen and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acid pretreatment; By-product; Chicken keel bone cartilage; Pepsin-soluble collagen; Temperature.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200491

Kinetic modeling and evaluation of free radical-scavenging behavior in oils: application to four tropical and subtropical fruits in a DPPH system
Provedor de dados: 116
Autores: RUFINO,Maria do Socorro Moura; NAZARENO,Lailla Sabrina Queiroz; ALVES,Ricardo Elesbão; FERNANDES,Fabiano André Narciso.
Abstract A kinetic model was developed to represent the radical-scavenging capacity (RSC) for the oxidation of oils. The model was developed using second-order rate constants (k2) to represent the RSC. The RSC of the oils can be compared by the k2 values indicating their scavenging capacity. Furthermore, the k2 values can be used to determine the decay kinetic of oils prone to attack by free radicals and to determine the amount of antiradicals that should be added as protective agent to these oils. As a case study, the antiradical capacity of four oils produced from tropical and subtropical fruits (avocado, nance, palm and peach palm) were studied using the DPPH• assay.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Oil; Fruit; DPPH.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200440

Liquid whey protein concentrates as primary raw material for acid dairy gels
Provedor de dados: 116
Autores: HENRIQUES,Marta Helena Fernandes; GOMES,David Manuel Gama Simões; BORGES,Ana Raquel; PEREIRA,Carlos José Dias.
Abstract The replacement of dehydrated products such as whey protein concentrates and isolates (WPC and WPI) by liquid whey protein concentrates (LWPC) obtained by ultrafiltration can be an excellent alternative for the production of innovative dairy products. Thus, the aim of this work is to study the gelation properties of LWPC as raw material for acid-induced dairy gels. Acid-induced gels were produced with non-defatted LWPC, with or without fortification with skimmed milk powder (SMP), by bacterial fermentation and by glucono-δ-lactone (GDL) acidification. The fermented systems (yogurt type acid gels) produced weaker gel structures than the equivalent chemically acidified gels (dessert type acid gels). It was also observed that molecular rearrangement...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Liquid whey protein concentrate; Acid-induced gel; Lactic acid bacteria; Glucono-δ-lactone; Texture; Rheology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200361

Functional properties and Bioactivities of Cleistocalyx nervosum var. paniala berry plant: a review
Provedor de dados: 116
Autores: PRASANTH,Mani Iyer; SIVAMARUTHI,Bhagavathi Sundaram; SUKPRASANSAP,Monruedee; CHUCHAWANKUL,Siriporn; TENCOMNAO,Tewin; CHAIYASUT,Chaiyavat.
Abstract In treating various diseases, natural therapies are widely preferred in the modern era to synthetic drugs as they offer little or no side effects, in contrast to synthetic drugs. However, there is limited scientific knowledge about plants that have a broad range of medicinal properties. Cleistocalyx nervosum var. paniala, native to Thailand and generally known as Ma-kiang in Thai, is one of the least documented plant species. Due to its richness in phenolic compounds, especially anthocyanins, C. nervosum var. paniala has been used in traditional medicine to treat several health complications. The fruits, seeds, and leaves of C. nervosum var. paniala have been reported to exhibit antioxidant, antimicrobial, anti-mutagenic, anti-carcinogenic,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cleistocalyx nervosum var. paniala; Ma-kiang; Antioxidant; Neuroprotection; Phenolics; Anthocyanins.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005007204

Quality evaluation of kashar cheese: influence of palm oil and ripening period
Provedor de dados: 116
Autores: KAVAK,Dilek Demirbuker; KARABIYIK,Hacer.
Abstract Vegetable oils are used as milk fat replacers in cheese production to alter sensory, nutritional profile, and to produce cholesterol free or low-cost cheeses. The aim of this study is to investigate the effect of palm oil usage on kashar cheese’s physicochemical, textural and sensorial quality characteristics during ripening. The results showed that replacement of milk fat with palm oil was not statistically significant in terms of moisture, salt, fat content, and titratable acidity. β-sitosterol content, which is a marker of vegetable oil addition in cheese, was found in the detectable range by chromatographic analysis for the palm oil added samples (PO). Hardness, chewiness, and gumminess values were significantly affected by the palm oil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Kashar cheese; Palm oil; Quality; Ripening; Texture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200354

Foam mat drying of banana juice: varieties of ripe banana analysis and egg albumen foam
Provedor de dados: 116
Autores: NOORDIA,Anna; MUSTAR,Yetty Septiani; KUSNANIK,Nining Widyah.
Abstract Drying technologies for ripen bananas is needed. Ripe bananas contains more antioxidant levels, anti-cancerous properties, easier to digest and useful for anxiety and depression. Considering nutrition compositional changes and the effect of external factors during processing ripe banana as a flour, foam mat drying with egg albumen foam was chosen. This research aim to provide an overview of banana juice foam mats from three different varieties bananas at level 5 up to 7 of maturity and mixed into different proportion using egg albumen as foaming agent and dried at temperatures from 60 °C to 80 °C in a cabinet dryer to a brittle and porous solid which able to grind. The study revealed that there is a significant difference in combination of banana...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drying technologies; Foaming agent; Banana powder; Cabinet dryer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200465

Extract of Ellagitannins starting with Strawberries (Fragaria sp.) and Blackberries (Rubus sp.)
Provedor de dados: 116
Autores: MÁRQUEZ-LÓPEZ,Anahí; AYALA-FLORES,Fernando; MACÍAS-PURECO,Stolishnaya; CHÁVEZ-PARGA,Ma. del Carmen; VALENCIA FLORES,Dora Cecilia; MAYA-YESCAS,Rafael; GONZÁLEZ-HERNÁNDEZ,Juan Carlos.
Abstract Characterize the content of phytochemical compounds present in samples of extracts of strawberry (Fragaria sp.) and blackberry (Rubus sp.). The extraction of said compounds was carried out with solutions of polar solvents, such as acetone, ethanol and methanol, using an experimental design with three factors: state of maturity, resting time and temperature. The characterization of these fruits is the beginning of the utilization mainly of ellagitannins to produce ellagic acid. Total phytochemical content was determined by spectrophotometric techniques, for phenolic content it was used Folin-Ciocalteu, for flavonoids it was determined with aluminium chloride, the antioxidant activity was evaluated by the methods of DPPH and ABTS+, the bactericidal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ellagitannins; Strawberries; Blackberries; Phytochemicals.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200430

Chemical composition and fatty acids profile of chocolates produced with different cocoa (Theobroma cacao L.) cultivars
Provedor de dados: 116
Autores: MELO,Calionara Waleska Barbosa de; Bandeira,Matheus de Jesus; MACIEL,Leonardo Fonseca; BISPO,Eliete da Silva; SOUZA,Carolina Oliveira de; SOARES,Sérgio Eduardo.
Abstract The objective of the present study was to characterize the physicochemical composition and to quantify the fatty acids of chocolates produced from different cocoa varieties (Theobroma cacao L.) cultivated in the Southern Region of Bahia. Nine samples of monovarietal chocolates were evaluated, according to their physical, thermal and fatty acid profile. The results were subjected to tests of variance and multivariate statistics. The chocolates PH16 and TSH1188 presented higher melting point. It was possible to identify a linear correlation between the fat content of the chocolates and the break force parameter. The chocolates showed higher concentration of saturated fatty acids, mainly palmitic acid (16:0) and stearic acid (18:0), followed by the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Monovarietal chocolate; Cocoa solids; Thermogravimetry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200326

Characterization of volatiles in red- and white-fleshed loquat (Eriobotrya japonica) fruits by electronic nose and headspace solid-phase microextraction with gas chromatography-mass spectrometry
Provedor de dados: 116
Autores: SUN,Haiyan; CHEN,Weiwei; JIANG,Yun; HE,Qiao; LI,Xiaolin; GUO,Qigao; XIANG,Suqiong; XI,Wanpeng; LIANG,Guolu.
Abstract Aroma differences are generally sensed in white- and red-fleshed loquats. Here, volatile compounds in four white- and three red-fleshed loquat varieties were investigated by headspace solid-phase microextraction and combined analysis of electronic nose (e-nose) and gas chromatography-mass spectrometry (GC-MS). In total, 83 volatile compounds were identified, and 33 were common in all of the cultivars. D-limonene, hexanal, (E)-2-hexenal, octanal and nonanal were the most abundant volatile compounds. β-cyclocitral and β-ionone were only detected in red-fleshed varieties. Furthermore, Huayu Seedless 1 (triploid white-fleshed loquats) with low levels of terpenoid compounds detected by GC-MS were clearly differentiated from the other cultivars tested...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Loquat; Volatile compounds; Electronic nose; GC-MS.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005004202

In vitro anti-aging activities of ginkgo biloba leaf extract and its chemical constituents
Provedor de dados: 116
Autores: WANG,Xiaoyue; GONG,Xiaoyan; ZHANG,Huina; ZHU,Wanshan; JIANG,Zewu; SHI,Yujing; LI,Li.
Abstract To determine in vitro anti-aging activity and identify the active chemical constituents in Ginkgo leaf extracts. The antioxidant properties of Ginkgo biloba leaves extracts were evaluated using 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) scavenging and 2,2’-azino-bis (3-ethylbenzothiazoline)-6 sulfonic acid radical (ABTS) scavenging assays. The inhibitory effects of extracts and chemical constituents on reactive oxygen species, matrix metalloproteinase-1 (MMP-1) and collagen tpye I level were tested using human dermal fibroblasts (HDFs). Reverse-phase liquid chromatography (RPLC) and ultra-performance liquid chromatography tandem mass spectroscopy (UPLC/MS/MS) were used to quantitatively analyze flavonoids and terpene trilactones in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ginkgo leaf; Antioxidant; Matrix metalloproteinase-1; Collagen I; Chemical analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200476

Survival analysis and cut-off point to estimate the shelf life of refrigerated fish burgers
Provedor de dados: 116
Autores: MARQUES,Caroline; LISE,Carla Cristina; LIMA,Vanderlei Aparecido de; DALTOÉ,Marina Leite Mitterer.
Abstract The consumption of fish in Brazil is below the world average. In order to change this scenario, considering the high nutritional value of this meat, one of the strategies is to turn fish into a convenient product, such as burgers. Since fish burgers are not yet established in the market, it requires investigation of the shelf life. To that end, survival analysis and cut-off point (COP) methodologies access the perception of consumers and trained panels. Thus, the objective of this study was to estimate the shelf life of grass carp burgers, by means of the survival analysis and cut-off point. A trained sensory panel and consumers evaluated the burgers during a refrigerated storage of 30 days. Simultaneously, the pH and the reactive substances of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Storage; Grass carp; Rancid flavor; Sensory; Lipid oxidation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100171

Optimization of bread quality with quinoa flour of different particle size and degree of wheat flour replacement
Provedor de dados: 116
Autores: KUREK,Marcin Andrzej; SOKOLOVA,Natalia.
Abstract The study aimed to assess the influence of quinoa flour of different particle size and degree of wheat flour replacement on dough and bread characteristics. Dynamic rheology and farinographs were used to describe the dough parameters. Specific volume, texture, porosity, color, overall quality and chemical assessment were performed as well. It could be observed that the degree of wheat flour substitution by quinoa flour significantly influenced the G’ and G” values in linear and quadratic terms (p ≤ 0.01 and p ≤ 0.05). Particle size played a significant role in increasing G’ and G” only in quadratic terms. Increasing quinoa substitution of wheat flour and interaction of PS and QS significantly increased the porosity of breadcrumbs. Moisture content...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quinoa; Bread; Particle size; Response surface methodology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200307

Zn treatment effects on biological potential of fennel bulbs as affected by in vitro digestion process
Provedor de dados: 116
Autores: MAJDOUB,Nesrine; KAAB,Leila Bettaieb Ben; VIEIRA,Ana Isabel; FALEIRO,Maria Leonor; EL-GUENDOUZ,Soukaina; MIGUEL,Maria Graça.
Abstract Zn treatment effects on the stability of polyphenols, MDA (malondialdehyde) content, antioxidant and lipoxygenase inhibition activities of two varieties of fennel bulbs were studied by using an in vitro gastrointestinal digestion model. Likewise, the effect of Zn on viability cells of E. coli was also performed. The results revealed that high amounts of total phenolic and flavonoid compounds were released during the digestion process, especially after the intestinal phase. Additionally, the antioxidant and lipoxygenase inhibitory activity were affected by the gastrointestinal digestion process and seems to be correlated with total phenol contents. On the other hand, the viability of E. coli was not affected by the activity of our tested bulbs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Foeniculum vulgare; Escherichia coli; Antioxidant activity; Anti-inflammatory activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005211

A multivariate approach to differentiate yerba mate (Ilex paraguariensis) commercialized in the southern Brazil on the basis of phenolics, methylxanthines and in vitro antioxidant activity
Provedor de dados: 116
Autores: ZIELINSKI,Acácio Antonio Ferreira; ALBERTI,Aline; BONA,Evandro; BORTOLINI,Débora Gonçalves; BENVENUTTI,Laís; BACH,Fabiane; Demiate,Ivo Mottin; NOGUEIRA,Alessandro.
Abstract The consumption of yerba mate beverages is related to several health benefits. These desirable properties are mainly due to the bioactive compounds. However, the levels of those compounds are directly affected by factors such as geographical origin. This study aimed to use chemometrics to evaluate the antioxidant compounds of yerba mate (consumed as chimarrão) marketed in southern Brazil. Neochlorogenic acid and caffeine were the main bioactive compounds found in this type of yerba mate beverage (chimarrão). The dataset was analyzed by chemometrics, and principal component analysis using the first three principal components explained 61.30% of the total variance. Hierarchical cluster analysis suggested three clusters, with cluster 1 containing the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioactive compounds; Geographical origin; Chimarrão; HPLC; Pattern recognition.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005006204

Development of a dehydrated product with edible film characteristics from mammee apple (Mammea americana L.) using Refractance Window drying
Provedor de dados: 116
Autores: NASCIMENTO,Cintieley dos Santos; RODRIGUES,Antonio Manoel da Cruz; SILVA,Luiza Helena Meller da.
Abstract The Mammee apple (Mammea americana L.) is a widely grown fruit, popular in tropical areas, which is mainly consumed fresh. Refractance Window (RW) drying is used to produce food films, flakes, and powders, and may be an alternative to commercially used dry food production methods. The aim of this study was to obtain a dehydrated product from the pulp of mammee apple using RW. The dehydrated product presented a homogeneous microstructure and good mechanical (TS = 1.15 Mpa, %E = 13.93) and technological properties (hygroscopicity = 21.46 g.100 g-1, water solubility index = 32.73 ± 0.67 g.100 g-1). RW drying was found to be a viable and low-cost method for edible film production, generating products with adequate technological characteristics and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mammea americana L.; Film; Refractance window; Biocompounds; Technological properties.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100245

Inhibitory effects of tanshinone IIA from Salvia miltiorrhiza Bge on human bladder cancer BIU-87 cells and xenograft in nude mice
Provedor de dados: 116
Autores: HUANG,Tao; YANG,Xiaokun; JI,Jianlei; WANG,Qinghai; WANG,Hongyang; DONG,Zhen.
Abstract The objective of this study was to investigate the inhibitory effects of tanshinone IIA on human bladder cancer BIU-87 cells and the xenograft in nude mice. BIU-87 cells were treated with tanshinone IIA with concentration of 0.5, 1, 2 and 4 g/L. The cell proliferation, cycle and apoptosis were detected. The nude mice with BIU-87 cell xenograft were treated with normal saline (control), 5-fluorouracil (5-FU), 200, 400 and 600 mg/kg tanshinone IIA, respectively. The animal body weight and growth of tumor were measured. The expressions of B-cell lymphoma-2 (Bcl-2), Caspase-3 and proliferating cell nuclear antigen (PCNA) protein in xenograft were detected. The apoptosis index of cells was determined. Results showed that, tanshinone IIA inhibited the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bladder cancer; Tanshinone IIA; BIU-87; Xenograft.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100209

Lipolysis and aroma occurrence in Erzincan Tulum cheese, which is produced by adding probiotic bacteria and ripened in various packages
Provedor de dados: 116
Autores: AKARCA,Gökhan.
Abstract This study aimed to investigate the physicochemical, volatile components and fatty acids profile of Erzincan Tulum cheeses, produced using different probiotic bacteria and packaging materials, during the ripening period. Erzincan Tulum Cheese, which is the most popular and highly consumed cheese species in Turkey. Tulum cheese were ripened in skin bag (Tulum), appendix and small intestine. The ripening time influenced the pH, ripening index, FFA, CLA and volatile components of samples. The short chain FFA varied between 16.36% and 21.76%, while medium-chain FFA varied between 37.44% and 39.43%, and long chain FFA between 32.61% and 37.48% during the ripening periods. The highest CLA value was determined as 0.82% for the samples produced with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tulum cheese; Probiotic; Fatty acids; CLA; Volatile compounds; Hexanal.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100102

Determination of active compounds in raspberry leaf extracts and the effects of extract intake on mice
Provedor de dados: 116
Autores: YANG,Jing; CUI,Jingyan; HAN,Hongjuan; CHEN,Jinxiang; YAO,Jingyang; LIU,Yongping.
Abstract Twelve typical polyphenols in raspberry leaf powder (RLP), raspberry leaf extract 1 (RLE) and raspberry leaf extract 2 (RLE-H) were analyzed by HPLC-MS. The sum of their contents in three samples were in the following order: RLP (8.6 mg g-1) &lt; RLE (35.0 mg g-1) &lt; RLE-H (44.1 mg g-1). Ellagic acid and quercetin-3-O-glucuronide were the principal compounds in the samples and accounted for more than 75% of the sum content. A gelled mixture of RLE, pectin, and sodium alginate administrated to mice via gavage resulted in reduced weight gain and adiposity percentage, increased teste percentage, prolonged exhaustion time, furthermore alleviated intestinal flatulence possibly induced by RLE or RLE-H alone. These results could help in making rational...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rubus idaeus var. reveille; Raspberry leaf extract; Polyphenols; Exhaustive time.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100124

Proteomic analysis of the inhibitory effect of chitosan on Penicillium expansum
Provedor de dados: 116
Autores: LI,Mingyan; CHEN,Chi; XIA,Xiaoshuang; GARBA,Betchem; SHANG,Linlin; WANG,Yun.
Abstract The antimicrobial effect of chitosan on Penicillium expansum, a major postharvest pathogen of pome fruit, and the possible mechanisms involved in its effect were examined in this study. Chitosan strongly inhibited spore germination and hyphal growth of P. expansum. Light microscopy and transmission electron microscopy observations revealed that chitosan also caused morphological changes in hyphae and conidia, such as abnormal branching and vacuolation. Proteomic changes in P. expansum after chitosan treatment were analyzed by two-dimensional electrophoresis (2-DE) and mass spectrometry (MS) analysis, and 26 proteins were ambiguously identified and categorized based on their putative biological function. Proteins related to DNA or protein...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitosan; Penicillium expansum; Antifungal activity; Proteomics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100250

Dry fruit as source of fungal contaminants or functional compounds?
Provedor de dados: 116
Autores: HARTWIG,Naralice; FERREIRA,Cláudia Fetter Jorge; COLAZZO,Carolina Carvalho; KUPSKI,Larine; BADIALE-FURLONG,Eliana.
Abstract This study evaluated the role of dry fruits as a source of fungal contaminants or functional compounds. Dry apple, apricot, candied fruits, prune, and white and black raisin were evaluated regarding patulin and ergosterol content, centesimal composition, pH, acidity, pectin, and phenolic profile. The ergosterol was detected in 38% of the samples and patulin (PAT) in 89%, the apricot samples stood out most by contaminant level. Apricot, candied fruit, and prunes presented moisture values beyond the other dry fruits. The pH ranged from 3.8 to 4.6; acidity from 0.1 to 1.0%; sugar content from 1.7 to 5.5%; and levels of soluble and insoluble pectin from 1.6 to 5.1% and 10.9% to 27.3%, respectively. The apples showed a higher content of free phenolic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ergosterol; Patulin; Pearson correlation; Phenolic acids; Pectin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100076

Optimization of a headspace solid-phase microextraction method for the gas chromatography-mass spectrometry analysis aroma compounds of Litsea mollis Hemsl. immature fruit
Provedor de dados: 116
Autores: YANG,Yi-Ni; LIANG,Miao; YANG,Yan; ZHENG,Fu-Ping; WANG,Xing-Ping; YU,Ai-Nong.
Abstract This study optimized using a headspace solid-phase microextraction (HS-SPME) method for extracting volatile aroma compounds, terpenoids in particular, from Litsea mollis Hemsl. immature fruit (LMIF). Gas chromatography-mass spectrometry was used to separate and identify volatile terpenoids in LMIF. The types of SPME fiber coating, salt addition, and desorption time were optimized by single factor-experiments to determine the range of extraction temperature. Built on insights from the single factor-experiments, the response surface methodology was further used to optimize the extraction temperature, extraction time, and equilibrium time of HS-SPME. The results showed that the optimal HS-SPME conditions for extracting volatile terpenoids from LMIF...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Litsea mollis Hemsl.; Solid-phase microextraction; Response surface methodology; Terpenoid; Citral; Aroma compound.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005007202

Promoters effectiveness in the improvement in iron and zinc absorption from the rice and bean
Provedor de dados: 116
Autores: TORRES,Larissa Catelli Rocha; AMARAL,José Eduardo Pedroso Gomes do; Canniatti-Brazaca,Solange Guidolin.
Abstract Iron and zinc are essential micronutrients for the organism functioning and their lack can result in prejudices to human health. The information about the presence of minerals in the diet are normally referred to its total concentrations, however these values do not reproduce the fraction that might be bioaccessible for the human body. The objective of this study was to evaluate if the promoters increase the iron and zinc bioaccessibility in a rice-and-bean mix. For this, four treatments were elaborated, all containing rice and bean and varied between each other regarding the promoters added to this mix. Ascorbic acid and cysteine were the promoters chosen to evaluate the influence in the iron and zinc absorption. For this purpose, the tomato was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caco-2; Minerals; Legumes; Cereals; Promoters.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005003202

Sucrose-free milk chocolate manufacture using bulking agents and a non-caloric sweetener
Provedor de dados: 116
Autores: AGUILAR-VILLA,Carolina; ACOSTA-OTÁLVARO,Elly Vannesa; RODRÍGUEZ-SANDOVAL,Eduardo; MAZO-RIVAS,Juan Camilo.
Abstract Sucrose is important in the production of chocolates because it contributes to its texture and sensory acceptance. The aim was to evaluate the effect of adding bulking agents and a non-caloric sweetener in the preparation of a sucrose-free milk chocolate. One control sample (with sucrose) and 11 treatments were taken varying the ratio between bulking agents (maltitol, polydextrose, inulin) and non-caloric sweetener (stevia), preserving the sweetness of control. Sensory acceptance of each treatment was evaluated by preference tests and taste profile. Principal component analysis (PCA) showed that formulations with maltitol and stevia (F7); and maltitol, polydextrose, inulin and stevia (F10) were the most similar to control in their sensory and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chocolate; Sucrose substitution; Inulin; Polydextrose; Maltitol; Stevia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100062

Effect of ultrasound on different quality parameters of functional sirkencubin syrup
Provedor de dados: 116
Autores: YIKMIŞ,Seydi.
Abstract Ultrasound is a process studied intensively for different products due to the increasing interest in non-thermal technologies. Sirkencubin syrup contains honey and vinegar and is a functional beverage maintaining health. The aim of this study was to examine the effects of the ultrasound process (pH, titratable acidity, brix, phenolic compounds, flavonoids, antioxidants, total sugar, HMF, sensory evaluation andmicrobiological) on ultrasonic and functional sirkencubin syrup. Ultrasound treatments (26 kHz frequency, 60% amplitude, all samples 200 mL, 80 W power) with different times (2, 5, 8, 10 and 15 minutes) were applied using an ultrasonic processor. The increase in ultrasound time increased most bioactive compounds compared to control samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ultrasound; Sirkencubin syrup; Non-thermal; Antioxidant; Functional.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100258

Information as a determinant criterion in the acceptance of fermented yam-based ice cream
Provedor de dados: 116
Autores: BATISTA,Nádia Nara; RAMOS,Cíntia Lacerda; PIRES,Josiane Ferreira; DIAS,Disney Ribeiro; SCHWAN,Rosane Freitas.
Abstract The aim of this study was to evaluate the influence of information on the acceptability of fermented yam-based ice cream, as well as its sensorial profile. For this, the acceptance and check all that apply (CATA) tests were performed in two sessions by 102 tasters. In the first session, consumers received only brief information about the ice cream preparation. Additional information about the healthy contribution of the product was provided to the consumers in the second session. In the acceptance test, significant differences between the sessions were observed (p &lt; 0.05) for the flavor attribute. Information on health benefits contributed by a reduction of “dislike moderately” and “dislike very much” classes (mainly 50-80%), and an increase of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acceptability test; CATA; Health benefits; Sensory analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200296

Comparison of total phenol content and antioxidant activity of herbal infusions with added Stevia reabaudiana Bertoni
Provedor de dados: 116
Autores: CASTAÑEDA-SAUCEDO,Ma Claudia; RAMÍREZ-ANAYA,Jessica del Pilar; TAPIA-CAMPOS,Ernesto; DIAZ-OCHOA,Elvia Guadalupe.
Abstract Antioxidant capacity (AC) was determined by the ABTS method and DPPH, and total phenol content (TPC) in dehydrated plant material, in infusions and in residues (plant material after preparing the infusion) of white, black, red, green, spearmint, stevia, lemon grass and chamomile teas to which stevia leaves were added or not added; addition of processed stevia powder was also tested. Three independent experiments were set up: with dehydrated plant material, with infusions and with residues. For the case of dehydrated plant material, white tea had the highest TPC (10813.5 mg GAE/100g) and AC by the ABTS method (1183.3 µM TE/g) and DPPH method (1525.0 µM TE/g). In infusions, black tea had higher TPC (180.82 µg GAE/ml) and AC by the methods ABTS and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Camellia sinensis; Matricaria chamomilla; Cymbopogon citratus and Mentha spicata.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100117

Rutin in herbs and infusions: screening of new sources and consumption estimation
Provedor de dados: 116
Autores: MEINHART,Adriana Dillenburg; DAMIN,Fernanda Mateus; CALDEIRÃO,Lucas; TEIXEIRA-FILHO,José; GODOY,Helena Teixeira.
Abstract Rutin has shown promising results in reducing various human diseases. However, many plants consumed in Brazil do not have their rutin content reported in the literature yet. More than eighty plants were analyzed using aqueous (popularly known as tea) and ethanolic extraction (employed in commercial rutin purification) by liquid chromatography. Rutin was found in 47 samples when ethanol extraction was used. Echinodorus grandiflorus had the highest content (14,878.7 mg 1000 g-1), followed by Sambucus nigra, Drimys winteri and Taraxacum officinale. In aqueous infusion, Echinodorus grandiflorus, Sambucus nigra, Drimys winteri and Ruta graveolens presented the highest levels of rutin, ranging from 15.5 to 29.7 mg of rutin in 300 mL of infusion from 2 g...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tea; HPLC; Phenolic compounds; Quantification; Bioactive.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005201

Cachaça production from sugarcane infested by Diatrea saccharalis
Provedor de dados: 116
Autores: ALMEIDA,Juliane Cristina de; AFERRI,Gabriela; BORTOLETTO,Aline Marque; ALCARDE,André Ricardo; COSTA,Gustavo Henrique Gravatim.
Abstract Cachaça is a highly consumed Brazilian spirit, which still needs studies on its agroindustrial processing. We can highlight the effects of infestation of pest insects in the sugarcane, and the chemical-physically characteristics of the drink. So, the aim of the study was to evaluate the consequences of the infestation of the sugarcane borer (Diatrea saccharalis) on the quality of the cachaça. The borer infestation results in less stalks productivity per hectare, and higher rates of acidity and phenol in juice and must. However, the borer did not affect the Brix, Purity, Total Reducing Sugars and pH of raw material. The cellular viability of infested stalks is less than of not infested stalks. The chemical-physical characteristics of the cachaça...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sugarcane borer; Saccharomyces cerevisae; Alcoholic fermentation; Distilleds drink; Distillation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100266

Elaboration of a natural sweetener using Erythritol/Stevia
Provedor de dados: 116
Autores: TASSO,Ivisson de Souza; SANTOS,Thaís Gentiluce dos; SEIBEL,Neusa Fátima.
Abstract The food industry always searches for innovation, product improvement, quality and customer satisfaction. In relation to sweeteners, this search had an expressive increase in recent times due to the increase of diseases caused by the excessive consumption of sugar. Most tabletop sweeteners marketed in Brazil have bulking agents with characteristics not appreciated by consumers, substances that can cause intolerance such as lactose or caloric products such as maltodextrin (4 kcal/g). Considering this problem, the aim of the research was to develop a natural sweetener, without contraindications, using the erythritol / stevia blend to compose the formulation. Three formulations (standard, 10% sweeter and 10% less sweet) were developed, that in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Erythritol; Polyol; Sweeteners; Sensory analysis; Glycosides of esteviol.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200370

Effects of heat treatments and edible shell coatings on egg quality after storage at room temperature
Provedor de dados: 116
Autores: OLIVEIRA,Cristina Henrique; BOIAGO,Marcel Manente; GUARAGNI,Andréia.
Abstract The objective of this study was to evaluate the effect of thermal treatments using different water temperatures and immersion times, as well as the application of eggshell coatings using edible materials on eggshell quality after storage for 4 weeks at room temperature (22.8 ± 4.4 °C). A total of 180 brown fresh eggs were distributed in a completely randomized design with six treatments and five replicates of six eggs each. The treatments consisted of a control group without any treatment (T1), three groups treated thermally: 56 °C/32 minutes (T2); 56 °C/20 minutes (T3); 56 °C/10 minutes (T4); and two groups with gelatin 2% (T5) and 5% NaCl solution (T6). After storage, it was found that the heat treatments at 56 °C for 10, 20 and 32 minutes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Albumen; Edible coating; Haugh unit; Heat treatment; Lipid peroxidation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005203

Risk perception related to food
Provedor de dados: 116
Autores: REMBISCHEVSKI,Peter; CALDAS,Eloisa Dutra.
Abstract There is no human activity that is risk free, including those most trivial and essential for survival, such as eating. Various factors impact the risk perception of a population, such as whether the risk is voluntary, known, brings some benefits or whether the information about the risk is provided by sources seen as trusted. Furthermore, regional and cultural aspects, gender and age can also have an impact on risk perception, and the level of scientific knowledge of the individual about the risks has in many cases little impact on the risk perception. In most countries, the perception of consumers to certain risks present in food, including genetically modified organisms (GMO), pesticides and food additives is high, probably due to the lack of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Risk perception; Food; Contaminants; Pesticide residues; Technology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005210

Low- and No- Calorie Sweeteners (LNCS): critical evaluation of their safety and health risks
Provedor de dados: 116
Autores: MALULY,Hellen Dea Barros; JOHNSTON,Craig; GIGLIO,Norberto Damián; SCHREINER,Ligia Lindner; ROBERTS,Ashley; ABEGAZ,Eyassu Getachew.
Abstract The increase of the prevalence of type-2 diabetes as a consequence of overweight and obesity has stimulated public health authorities worldwide to develop strategies for its risk management and prevention. Among them, a reduction on the content of sugar in sugar-sweetened foods and beverages has been suggested, which led the food industry to replace partially sucrose with food additives, such as low- and no-calorie sweeteners (LNCS). As a consequence, there has been an increase of their consumption, which has made regulatory agencies to evaluate their exposure and possible consequences. At the same time, speculations about adverse effects, such as carcinogenicity, preterm delivery and metabolic changes involving appetite, weight increase and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sweeteners; Safety; Regulation; Metabolism; Cancer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100001

Quality pattern evaluation of frozen soursop pulps: an assessment based on chemical composition and chemometric analysis
Provedor de dados: 116
Autores: NASCIMENTO,Madson Moreira; JESUS,Raildo Mota de; SANTOS,Herick Macedo; SILVA JUNIOR,André Luiz Sampaio da; CAMPOS,Nícolas Mateus Cosme Oliveira; SILVA,Erik Galvão Paranhos da; LÔBO,Ivon Pinheiro.
Abstract In the present study, the physicochemical properties and mineral composition of commercially-frozen soursop pulps from the southern region of the state of Bahia, Brazil, were evaluated. The physicochemical parameters such as soluble solids (°Brix), acidity and pH were determined according to reference methodologies. For mineral composition evaluation, samples were digested in a closed microwave system and the elements K, P, S, Ca, Mg, Fe, Cu, Zn, and Mn were quantified through inductively coupled plasma optical emission spectrometry (ICP OES). Soluble solids content ranged from 4.77 to 15.37 °Brix among the different brands of analyzed frozen pulps. Titratable acidity (equivalent to citric acid) and pH ranged from 0.49 to 1.00 and 3.61 to 4.57,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annona muricata L.; Frozen soursop pulp; Physicochemical properties; Essential elements; Multivariate statistics; Principal component analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200508

Safety assessment of Spirulina platensis through sprague dawley rats modeling
Provedor de dados: 116
Autores: BASHIR,Shahid; SHARIF,Mian Kamran; JAVED,Muhammad Sameem; AMJAD,Adnan; KHAN,Ammar Ahmad; SHAH,Faiz-ul-Hassan; KHALIL,Anees Ahmad.
Abstract Health safety of spirulina (Spirulina platensis) for food application was evaluated through hematology and histopathology of liver, spleen and kidney in Sprague Dawley rats fed on three isoproteic diets maintained to 10% protein for forty five days. Three groups of rats were maintained as control diet casein (R-C); diet containing crude spirulina (R-S) and diet containing purified spirulina protein (R-SPI). Hematological profile of the rats group fed on spirulina diets showed no significant increase in white blood cells (WBCs), while there was decreasing trend in the levels of neutrophils (60.46 ± 2.60%) and lymphocytes (33.53 ± 1.06%) in rats that were fed on spirulina diet (R-S) than the other tested experimental diet group. Histopathological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spirulina; Spirulina protein isolates; Hematology; Histopathology; Algal toxicology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200376

Characteristics of glucose oxidase immobilized on Magnetic Chitosan Nanoparticles
Provedor de dados: 116
Autores: EIN ALI AFJEH,Maryam; POURAHMAD,Rezvan; AKBARI-ADERGANI,Behrouz; AZIN,Mehrdad.
Abstract Immobilization process is used to facilitate the enzyme recovery and reusability. The aims of this study were to evaluate the effect of different amounts of chitosan on immobilization efficiency of Glucose Oxidase (GOX), pH effect on enzyme activity and changes of kinetic characteristics of enzyme immobilized on Magnetic Chitosan Nanoparticles (MCNP). GOX was immobilized on MCNP with cross bonds and Schiff base covalent connections. The sample with 0.3 g of chitosan had the highest immobilization efficiency (41.30%). Morphology of nanoparticles was investigated by Scanning Electron Microscopy (SEM). Immobilization of GOX on magnetic nanoparticles was verified with Fourier Transform Infrared (FTIR). The effect of pH on enzyme activity was similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitosan nanoparticles; Enzyme activity; Glucose oxidase; Immobilization efficiency; Kinetic parameters.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100068

Evaluation of the microbiological quality of minimally processed vegetables
Provedor de dados: 116
Autores: SCHUH,Vanessa; SCHUH,Janaína; FRONZA,Nei; FORALOSSO,Fabiana Bortolini; VERRUCK,Silvani; VARGAS JUNIOR,Alvaro; SILVEIRA,Sheila Mello da.
Abstract The aim of this study was to evaluate the hygienic-sanitary quality of minimally processed vegetables commercialized in the city of Concórdia, Santa Catarina State, Brazil. Eight distinct products, sold in 3 different supermarkets, totalizing 24 samples were evaluated. Of the analyzed samples, just one was in discordance with the microbiological parameters established by the Brazilian legislation (210 MPN/g of coliforms at 45 °C for Kale 2). Beyond the absence of Salmonella sp. indicated in legislation, all samples also indicated the absence of positive coagulase staphylococci and Listeria monocytogenes. The most expressive microbial counts were obtained when evaluating the aerobic mesophilic microorganisms (ranging from 2.8×102 to 2.7×107), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Minimally processed vegetables; Hygiene; Pathogenic microorganisms; Food quality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200290

Identification of Methicillin-Resistant Staphylococcus aureus in Bulk Tank Milk
Provedor de dados: 116
Autores: KEYVAN,Erhan; YURDAKUL,Ozen; DEMIRTAS,Ahu; YALCIN,Halil; BILGEN,Nuket.
Abstract Staphylococcus aureus is the leading cause of intoxications in humans. Also, methicillin-resistant S. aureus (MRSA) is an emerging problem in food-producing animals. The presence of MRSA in milk may create a risk to public health. The aim of this study was to evaluate the presence of MRSA in bulk tank milk samples. One hundred and twenty bulk tank milk samples were analyzed using the convenient sampling method. The isolates were confirmed by real-time polymerase chain reaction (RT-PCR) targeting nuc and mecA gene in S. aureus. Antibiotic resistance profiles of the isolates were tested by disc agar diffusion method. In the current study, S. aureus was detected in 44 (36.66%) of the samples. The presence of the mecA gene was found to be positive in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibiotic resistance; Bulk tank milk; MRSA.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100150

Physicochemical characterization, antioxidant activity, and sensory analysis of beers brewed with cashew peduncle (Anacardium occidentale) and orange peel (Citrus sinensis)
Provedor de dados: 116
Autores: PEREIRA,Iana Maria Cristino; MATOS NETO,José Duarte; FIGUEIREDO,Raimundo Wilane; CARVALHO,Juliane Döering Gasparin; FIGUEIREDO,Evânia Altina Teixeira de; MENEZES,Natália Viviane Santos de; GABAN,Socorro Vanesca Frota.
Abstract This study aimed at brewing wheat beer with cashew peduncle (CP) and orange peel (OP). Six formulations (F) were assessed for their physicochemical characteristics and total amount of polyphenols and antioxidant activity. The flavors of F1 and F6 were evaluated via sensory analysis. The results showed that the evaluated beers were in accordance with the parameters required by the Brazilian legislation. Moreover, the addition of CP and OP improved total amounts of polyphenols, antioxidant activity, and flavor. We conclude that the use of by-products from the food industry brings new possibilities of innovation into the beverage sector.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyphenols; Antioxidants; Beverages; Fermentation; Flavors.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005204

Effects of nitrogen supplementation on Saccharomyces cerevisiae JP14 fermentation for mead production
Provedor de dados: 116
Autores: ALMEIDA,Eduardo Luís Menezes de; MOREIRA E SILVA,Gustavo; VASSALLI,Igor de Albuquerque; SILVA,Mayara Salgado; Santana,Weyder Cristiano; SILVA,Paulo Henrique Alves da; ELLER,Monique Renon.
Abstract Honey must supplementation is necessary for mead production due to the deficiency in nitrogen materials in this feedstock, despite its high fermentative sugar content. The nitrogen limitation can halt or slow fermentation and lead to the production of unpleasant sensorial compounds, such as sulfur derivatives. The yeast JP14, a Saccharomyces cerevisiae isolated from Jataí bee’s pollen, was inoculated in 25 °Brix honey must with – 0 (control); 0,3; 0,7 and 1,0 g∙L-1 – of di-ammonium phosphate (DAP) and ammonium sulfate (AS). The addition of both supplements resulted in increased cell viability in the first 5 days of fermentation at 20 °C, but did not affect the final acidity of the produced meads. Supplementation also leads to increased sugar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Yeasts; Beverages; Ammonium; Additives.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005007201

Screening and characterisation of gamma-aminobutyric acid (GABA) producing lactic acid bacteria isolated from Thai fermented fish (Plaa-som) in Nong Khai and its application in Thai fermented vegetables (Som-pak)
Provedor de dados: 116
Autores: TANAMOOL,Varavut; HONGSACHART,Piyorot; SOEMPHOL,Wichai.
Abstract This study aimed to evaluate the capability of lactic acid bacteria (LAB) isolated from different kinds of fermented fish products (Plaa-som) on the production of γ-aminobutyric acid (GABA). Among them, isolate L10-11, identified as Lactobacillus plantarum, offered the highest GABA production and was selected for further study. The highest production of GABA was obtained within 48h from the de Man, Rogosa and Sharpe (MRS) medium, having a pH range of 5-6. Increasing the monosodium glutamate (MSG) concentration resulted in a higher accumulation of GABA and reached the highest concentration (15.74 g/L) using 4% (w/v) MSG, while high residual MSG was also observed in accordance with concentration increase. On the other hand, the addition of NaCl in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactic acid bacteria; GABA; Fermented fish; Plaa-som; Som-pak.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200483

Staple food crops from Brazilian Biofortification Program have high protein quality and hypoglycemic action in Wistar rats
Provedor de dados: 116
Autores: DIAS,Desirrê Morais; GOMES,Mariana Juste Contin; MOREIRA,Maria Eliza de Castro; NATAL,Dorina; SILVA,Roberta Ribeiro; NUTTI,Marilia; MATTA,Sérgio Luis da; SANT’ANA,Helena Maria Pinheiro; MARTINO,Hércia Stampini Duarte.
Abstract Biofortified staple food crops have become an effective tool by which to address micronutrient deficiencies in many at-risk populations. The effect of these food crops on the micronutrient status has been evaluated, however there is no studies investigating their protein quality, neither by themselves or in a food combination. Thus, this study investigated the effect of combinations of beans and rice, target for biofortification, with high carotenoids content crops (sweet potato and pumpkin) on protein quality, intestinal function and glycemia. Eight groups were evaluated (n=6): 1) rice + Caupi bean (RCB); 2) rice + Pontal bean (RPB); 3) rice + Caupi bean + pumpkin (RCBP); 4) rice + Pontal bean + pumpkin (RPBP); 5) rice + Caupi bean + sweet potato...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protein; Biofortification; Blood glucose; Fecal lipid; Short chain fatty acids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100140

Alternative production of craft lager beers using artichoke (Cynara scolymus L.) as a hops substitute
Provedor de dados: 116
Autores: SCHUINA,Guilherme Lorencini; QUELHAS,João Olavo Figueiredo; CASTILHOS,Maurício Bonatto Machado de; CARVALHO,Giovani Brandão Mafra de; DEL BIANCHI,Vanildo Luiz.
Abstract Beer is a fermented beverage made from barley malt and hops under the action of a suitable yeast. The main function of hops in the brewing process is to provide bitterness, characteristic flavours and aromas to the beverage. However, hops only began to be added to the formulation of this beverage starting in the ninth century. Therefore, the use of other bitter plants as a substitute for hops may be a viable alternative. This study aimed at evaluating the use of artichoke as a total substitute for hops in American lager craft beer production. The substitution of hops with up to 2 g⋅L-1 artichoke resulted in a beer with a quality similar to that of the American lager beer traditionally found in the market. So, artichoke was confirmed to be a viable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bitterness; Brewing; Bitter plants.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100157

The shelf life of standardized sugarcane juice stored under refrigeration
Provedor de dados: 116
Autores: Geremias-Andrade,Ivana Morais; Rocheto,Ana Cláudia; Gallo,Fabio Augusto; Petrus,Rodrigo Rodrigues.
Abstract The shelf life (SL) of freshly extracted sugarcane juice is limited to a few hours, and the use of hurdle technology is a strategy to ensure its safety and stability. The SL of standardized cane juice (19.4 °Brix, 0.085% acidity and pH 4.35), pasteurized at 95 °C/30 s and stored under refrigeration, was estimated. Ideal (4 °C), commercial (8 °C) and abusive (12 °C) conditions were tested. Microbiological and sensory assays were carried out on the newly processed juice (time zero) and overtime to estimate the SL. Counts of psychrotrophic bacteria and molds and yeasts equivalent to 4 and 3 logCFU mL-1, respectively, were set as acceptable maximum levels to establish the SL. Average scores greater than 5 (in the 9-point hedonic scale) and percentages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hurdle technology; Ultra clean filling; Stability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100095

Consumer behavior of organic and functional foods in Brazil
Provedor de dados: 116
Autores: MARTINS,Adalgisa Paula de Oliveira; BEZERRA,Maria de Fátima; MARQUES JÚNIOR,Sérgio; BRITO,André Fonseca; ANDRADE NETO,Júlio César de; GALVÃO JÚNIOR,José Geraldo Bezerra; LIMA JÚNIOR,Dorgival Morais de; RANGEL,Adriano Henrique do Nascimento.
Abstract The objective of this study was to correlate the gender and behavior of consumers of organic foods enriched with functional properties. The study was carried out by investigating the profile of organic and functional food consumers through the application of a questionnaire. A total of 1230 responses (of the questionnaire) were collected from people from all Brazilian states through social networks and e-mails following the snowball technique during the months of February and March 2017. The results showed that women expressed greater interest in consuming organic foods enriched with functional properties compared to men. Men and women agree that organic food are produced in a sustainable. Their high price, difficult access, irregular supply and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Healthy foods; Consumption frequency; Reasons for consumption; Quality of life.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200469

Prediction of quality parameters of food residues using NIR spectroscopy and PLS models based on proximate analysis
Provedor de dados: 116
Autores: RAMBO,Magale Karine Diel; FERREIRA,Márcia Miguel Castro; MELO,Polyana Morais de; SANTANA JUNIOR,Claúdio Carneiro; BERTUOL,Daniel Assumpção; RAMBO,Michele Cristiane Diel.
Abstract The real-time prediction in biorefinery industries has become essential. Models using partial least square regression (PLS) were developed to predict moisture, ash, volatile matter, fixed carbon and organic matter of coconut and coffee residues. In this study, 49 samples were collected and near infrared spectroscopy were applied to predict moisture, ash, volatile matter, fixed carbon and organic matter. For external validation 25% of the set samples were used. Moisture and volatile matter were predicted with coefficients of determination (R2cal) above 0.90, and standard errors (RSD) of the estimate of 14.4% and 2.26%, respectively. Models of ash and organic matter show R2cal &gt; 0.77 and RSD values &lt; 20.4%. For the external validation, the low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass; Figures of merit; Pre-treatments; External validation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200444

Addition of hydrocolidics in gluten-free bread and replacement of rice flour for sweet potato flour
Provedor de dados: 116
Autores: FRANCO,Vilmara Araújo; GARCIA,Lismaíra Gonçalves Caixeta; SILVA,Flávio Alves da.
Abstract The objective was to elaborate gluten-free bread, using different hydrocolloids and to verify the effect of substitution of rice flour for sweet potato flour (SPF) on the technological and sensory quality of bread. Better results were observed with the use of 2% carboxymethylcellulose (CMC), without significant difference (p &gt; 0.05) in the sensory evaluation of the samples containing hydrocolloids. Lower specific volume and higher hardness was observed with the addition of CMC and higher levels of SPF. The microbiological evaluation of bread made from the substitution of 25% rice flour for SPF allowed to establish shelf life of 7 days, with an acceptability index of 80.3%, which is considered high because it is a new product. Regarding the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gluten intolerance; Carboxymethylcellulose; Xanthan gum.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005004201

System electro-neutralizer of agrochemicals contained in food and water samples through electrons trap
Provedor de dados: 116
Autores: DUVOISIN,Charles Adriano; SOUSA,José Paulo Felipe Afonso de; Pscheidt,André; BARETTA,Dilmar; HORST,Diogo José; VIEIRA,Rogério de Almeida; MOURÃO JR.,Carlos Alberto; SECCHI,Mario Alberto.
Abstract This study presents a system to electro-neutralize agrochemicals in food and water samples based on the properties of a controlled electron trap, the related apparatus is protected under patent application (WO/2018/090110; INPI: BR 10 2016 0268486) / (PCT / BR 2017/050115). The efficacy of the system was verified as to the type, quantity, surface tension charge, temperature, pH and static energy loading of the electrolyte for both solid and liquid samples. It also took into consideration the retention and accumulation measurement of electric charges, verification of electrical potential differences and also accumulation by applying pulsed high voltage in according to the Daniell Cell method. The proposed technology is able to provide the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agrochemicals; Electrolysis; Food security; Neutralization; Toxicity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200315

Preparation of glycosylated hydrolysate by liquid fermentation with Cordyceps militaris and characterization of its functional properties
Provedor de dados: 116
Autores: YANG,Shuang; ZHENG,Mingzhu; LI,Sheng; XIAO,Yu; ZHOU,Qi; LIU,Jingsheng.
Abstract This study aimed to investigate the potential of a novel preparation strategy for glycosylated hydrolysate by liquid fermentation in order to provide a high-quality glycosylated hydrolysate. Protein solubility, surface hydrophobicity and antioxidant activity were evaluated. The results of Fourier transform infrared spectra demonstrated the occurrence of glycosylation reaction. The results of Fluorescence emission spectroscope revealed the decrease of tertiary conformation stability. Circular dichroism spectra revealed significant decrease in α-helix and increase in β-sheet and random coil by glycosylation reaction. In comparison with zein hydrolysate, glycosylated hydrolysate had lower surface hydrophobicity but higher in solubility and in vitro...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zein; Glycosylated hydrolysate; Cordyceps militaris; Conformational properties; Functional properties.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005212

Effect of ultrasound on the functional and structural properties of hydrolysates of different bovine collagens
Provedor de dados: 116
Autores: VIDAL,Alessandra Roseline; CANSIAN,Rogério Luis; MELLO,Renius de Oliveira; KUBOTA,Ernesto Hashime; DEMIATE,Ivo Mottin; ZIELINSKI,Acácio Antonio Ferreira; DORNELLES,Rosa Cristina Prestes.
Abstract The ultrasound effect on functional and structural properties of hydrolysates of different bovine collagens (fibers, gelatines and hydrolysates) was evaluated. The enzymatically hydrolyzed samples (enzyme Alcalase®) with previous or simultaneous ultrasound treatment presented higher number of bands with shorter wavelengths (mid-FTIR). The ultrasound provided the samples with a higher hydrolysis degree and favored the antimicrobial activity, evidencing the advantages of its use in the process. Results revealed that higher hydrolysis degree does not always result in higher antioxidant activity. The use of ultrasound in the hydrolysis of these samples was seen to be effective, providing them with higher functionality and structural disruption.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protein hydrolysis; Antioxidant activity; Antimicrobial activity; Infrared spectroscopy; Ultrasound.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200346

The effects of kefir grain and starter culture on kefir produced from cow and buffalo milk during storage periods
Provedor de dados: 116
Autores: TOMAR,Oktay; AKARCA,Gökhan; ÇAĞLAR,Abdullah; BEYKAYA,Mehmet; GÖK,Veli.
Abstract The present study was aimed to determine the effect of different types of milk and kefir grains or starter cultures on the chemical properties, and microorganism counts of kefir samples. The type of milk had a significant effect on the acidity, dry matter, protein, and CO2 values. Acidity and CO2 values increased during storage period, while dry matter, fat and protein contents decreased. However, the type of milk had no significant effect on Lactobacillus, Leuconostoc and yeast counts. In the samples produced using starter culture microorganism counts except those of L. acidophilus of the samples increased (p &lt; 0.05) during the 14 days of storage. Higher Lactobacilli (8.52 log cfu/ml) and Lactococci (8.84 log cfu/ml) was found in kefir...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Buffalo milk; Yeast; Protein content; Fermentation; Acidity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100238

Bioactive compounds and value-added applications of cupuassu (Theobroma grandiflorum Schum.) agroindustrial by-product
Provedor de dados: 116
Autores: COSTA,Russany Silva da; SANTOS,Orquídea Vasconcelos dos; LANNES,Suzana Caetano da Silva; CASAZZA,Alessandro Alberto; ALIAKBARIAN,Bahar; PEREGO,Patrizia; RIBEIRO-COSTA,Roseane Maria; CONVERTI,Attilio; SILVA JÚNIOR,José Otávio Carréra.
Abstract Cupuassu is a fruitful species from the Amazon basin with great economical potential, due to the multiple uses of its pulp and seeds in the food and cosmetic industries. This fruit generates large amounts of solid waste, which, despite of its high content of bioactive compounds, is discarded in the environment. Therefore, with the aim of reusing these wastes and adding economic value, we investigated the nutritional potential of the seed by-product resulting from industrial cupuassu oil extraction. The by-product was submitted to green extraction, and its contents of bioactive compounds were quantified by HPLC. The extract had a total polyphenol content (16.9 ± 1.8 mg/gDM) and an antioxidant activity, ABTS + (151.0 ± 5.5 mg/100 g) and DPPH. (85.4...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cupuassu; By-product; Antioxidant activity; Flavonoids; Reuse; Value-added applications.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200401

Differential gene expression of pectin esterase and changes in pectin during development and ripening stages of fruit in selected cultivars of banana
Provedor de dados: 116
Autores: SIDDIQUI,Nouman Rashid; MUHAMMAD,Aish; KHAN,Muhammad Ramzan; ALI,Ghulam Muhammad; MAHMOOD,Talat; SHAHZAD,Armghan; JABBAR,Saqib.
Abstract Pectin is a very important ingredient in food processing. The present study was designed to find out the changes taken place in pectin content during development and ripening phases of banana fruit. The expression of gene (pectin esterase) was also observed during development and ripening. Five exotic cultivars namely William, Brazilian, G-Naine, Basrai and Pisang were selected for this study. Sampling were carried out after every 2 weeks during development and there was 6 sampling stages (from emergence to harvesting stage). After harvesting the fruit of all cultivars were subjected to natural ripening in the lab and sampling during ripening were carried out according to the colour changes in the fruit skin. 5 ripening stages were studied. Hence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pectin; Pectin esterase; Gene expression; Development and ripening; Banana.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005208

Effect of spray drying on the fatty acids content and nutritional indices of buffalo powdered milk
Provedor de dados: 116
Autores: ALVES,Mariana Ferreira; BORGES,Marília Viana; FLORÊNCIO FILHO,Daniel; CHAVES,Modesto Antônio; LANNA,Dante Pazzanese; PEDREIRA,Márcio dos Santos; FERRÃO,Sibelli Passini Barbosa; FERNANDES,Sérgio Augusto de Albuquerque.
Abstract The buffalo’s reproductive seasonality determines the decrease in milk and cheese production generating economic losses on the production system. Among various food process, we find the spray-dryer as an essential tool which helps food conservation. We achieved the milk powder in three replicates and each repetition processed 10 L of buffalo milk. After obtaining the final product, three samples (200 g) were packaged for each evaluated storage time (0, 30, 60, 90, 120 and 150 days at room temperature). In this context, we assessed the effects of drying buffalo’s milk by atomization (spray dryer) and storage time effects on the milk fat. We observed that the spray drying did not alter the fatty acid content and nutritional indices evaluated, except...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DHA; EPA; Public health; Seasonality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100230

Unsatisfactory microbiological aspects of UHT goat milk, soymilk and dairy beverage of goat milk and soy protein: A public health issue
Provedor de dados: 116
Autores: ANJOS,Taís Ramalho dos; CAVICCHIOLI,Valéria Quintana; LIMA,Joyce Aparecida Santos; VASCONCELLOS,Alenia Naliato; VAZ,Andréia Cristina Nakashima; ROSSI,Gabriel Augusto Marques; CAMPOS-GALVÃO,Maria Emilene Martino; TODOROV,Svetoslav Dimitrov; MATHIAS,Luis Antonio; SCHOCKEN-ITURRINO,Rubén Pablo; NERO,Luís Augusto; VIDAL,Ana Maria Centola.
Abstract Spore forming bacteria can play an important role in food quality and safety as spoilage and pathogenic microorganisms due to resistance to heat-treatment. However, there are limited number of studies focused on evaluate the microbiological quality and the occurrence of these bacteria in UHT goat milk, soymilk and dairy beverage of goat milk and soy protein. In this context, 75 samples of these beverages were evaluated regarding heterotrophic mesophilic microorganisms by conventional plate count and selective methods to detect microorganisms from Bacillus cereus group and Clostridium perfringens. Population counts greater than 104 CFU.ml-1 of heterotrophic mesophilic microorganisms were observed in 80% of the lots of goat milk and 100% of the lots...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Foodborne pathogens; Microbiology; PCR; Spores.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005006202

Effect of yacon syrup on blood lipid, glucose and metabolic endotoxemia in healthy subjects: a randomized, double-blind, placebo-controlled pilot trial
Provedor de dados: 116
Autores: DIONÍSIO,Ana Paula; SILVA,Maria de Fátima Gomes da; CARIOCA,Antônio Augusto Ferreira; ADRIANO,Lia Silveira; ABREU,Fernando Antônio Pinto de; WURLITZER,Nedio Jair; PINTO,Claudia de Oliveira; PONTES,Dorasilvia Ferreira.
Abstract We investigate the impact of yacon syrup consumption on glycemic, lipid and metabolic endotoxemia in healthy subjects. Thus, 32 healthy were randomized into two groups that consumed 40 g of yacon syrup/day (= 8.74 g FOS/day) or a placebo, for 2-weeks. Anthropometric assessments, gastrointestinal effects, glycemic and lipid profile, and LPS were performed at the beginning and at the end of the study. The results obtained shown that the 2-weeks consumption of yacon syrup does not promote serum LPS alteration in healthy volunteers. Moreover, the glycemic and lipid profile were also similar between the groups before and after the intervention. Yacon syrup did not affect blood lipid, glucose or metabolic endotoxemia. However, it is possible that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Smallanthus sonchifolius; Fructooligosaccharides; Prebiotics; Lipopolysaccharides.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100194

Isolation and functional caharacterization of chia (Salvia hispanica) proteins
Provedor de dados: 116
Autores: SEGURA-CAMPOS,Maira Rubi.
Abstract The objective was to isolate and characterize the proteins of chia seeds cultivated in the Mexican southeast. The main protein fraction was glutelins (42.94%) that had the highest Water Absorption Capacity (WAbC). Prolamins had the highest Water Adsorption Capacity (WAdC) (1.83 g/g). Glutelins registered the highest Water Holding Capacity (WHC). A higher Oil Holding Capacity (OHC) of chia protein fractions was registered in globulins and a higher Organic Molecule Absorption Capacity (OMAbC) was registered in albumin fractions (5.5 g/g of sample). At pH 2, 4 and 6, the glutelins registered a higher Emulsifying Capacity (EC) while, at pH 8 and 10, the prolamins recorded a higher EC percentage. Chia fractions registered the highest Foam Capacity (FC)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chía; Proteins; Solubility fractionation; Characterization; Functional properties; Applications.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200334

Antibacterial activity of polyvinyl alcohol (PVA)/ε-polylysine packaging films and the effect on longan fruit
Provedor de dados: 116
Autores: LI,Yana; WANG,Yuwen; LI,Juying.
Abstract Biodegradable and antimicrobial films via combing ε-polylysine (ε-PL) and polyvinyl alcohol (PVA) is a promising material for food packaging. We prepared the ε-PL/ PVA films with the ε-PL content of 0%, 1%, 3%, 5% and 7% (wt., relative to PVA) by casting method and their physical and chemical properties were characterized. SEM indicated the surface of ε-PL/PVA films was smooth with well compatibility between ε-PL and PVA at the ε-PL addition content of 1%. The tensile strength and barrier properties for water vapor and oxygen of the ε-PL/PVA films initially elevated and then decreased when ε-PL content exceeded 1%. The ε-PL doped endows antibacterial activity of PVA and the antibacterial property of ε-PL/PVA films was increasing with increase of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyvinyl alcohol; Ε-polylysine; Antimicrobial films; Food packaging; Longan.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005207

Atomic force microscopy evidences of bacterial cell damage caused by propolis extracts on E. coli and S. aureus
Provedor de dados: 116
Autores: CAMPOS,Jessica Valéria de; ASSIS,Odílio Benedito Garrido; BERNARDES-FILHO,Rubens.
Abstract The interaction of the aqueous extract of green propolis with the bacterial envelope was investigated using atomic force microscopy on E. coli and S. aureus, as Gram-negative and Gram-positive model microorganisms. The bacteria were incubated in the extracts with variable proportions of water/ethanol, i.e., in different concentrations of total phenolic and flavonoids, for 4 and 12 hours. All extracts exhibited antibacterial action with higher activity (lower MIC) for full ethanolic extract (100% alcohol) against both strains, what was attributed to a synergistic interaction of ethanol and phenolic compounds presented in greater concentration in this extract. According to AFM analysis, it was evidenced the propolis main mechanism of action as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Propolis; Antimicrobial activity; Bacterial wall integrity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000100055

Organic acids and hydrogen peroxide can replace chlorinated compounds as sanitizers on strawberries, cucumbers and rocket leaves
Provedor de dados: 116
Autores: LEPAUS,Bárbara Morandi; ROCHA,Jéssica Souza; SÃO JOSÉ,Jackline Freitas Brilhante de.
Abstract This work evaluated the effectiveness of 1 and 2% acetic and lactic acid, 3% hydrogen peroxide, 200 mg/L sodium hypochlorite and 200 mg/L sodium dichloroisocyanurate to reducing natural contaminants as well as Salmonella enterica Enteritidis inoculated on the surface of strawberries, cucumbers, and rocket leaves. The reduction of aerobic mesophilic and molds and yeasts was between 1.67 – 2.73 and 0.61 – 1.46 log CFU/g in strawberries, 1.48 – 2.19 and 1.02 – 2.01 log CFU/g on rocket leaves, and 1.10 – 2.08 and 0.88 – 1.58 log CFU/g in cucumbers, respectively. The most effective sanitizers for reducing Salmonella enterica Enteritidis in strawberries were 1% and 2% lactic acid, while in cucumbers and rocket leaves was the 2% lactic acid as well as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ready-to-eat food; Non-chlorinated sanitizers; Microbial load; Food safety; Quality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005001201

Physicochemical and microbiological stability of fermented dairy beverages added with red rice extract
Provedor de dados: 116
Autores: BOÊNO,Josianny Alves; NICOLAU,Edmar Soares; ASCHERI,Diego Palmiro Ramirez.
Abstract Fermented dairy beverages added with red rice extract and whey were the developed, physicochemical and microbiological properties were evaluated. A central composite rotatable design was applied, using nine treatments with three replicates. The pH indicated that the beverages could be consumed without the addition of preservative for up to 28 days of storage. The beverages are characterized as partially skimmed, with high protein content, zinc, manganese and copper levels, similar potassium and iron levels and low sodium, magnesium and calcium levels, if compared to the recommended daily index. The absence of pathogens and numbers of viable lactic acid bacteria above the established minimum level were observed. The physicochemical parameters were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutritional quality; Microbiology; Shelf life; Stability; Whey.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200415

Addition of green banana biomass as partial substitute for fat and encapsulated Lactobacillus acidophilus in requeijão cremoso processed cheese
Provedor de dados: 116
Autores: PIVETTA,Franciele Pozzebon; SILVA,Maritiele Naissinger da; TAGLIAPIETRA,Bruna Lago; RICHARDS,Neila Silvia dos Santos.
Abstract This study evaluated the effects of the addition of encapsulated Lactobacillus acidophilus and green banana biomass on the characteristics of requeijão cremoso processed cheese during the storage period of 45 days under refrigeration. The elaborated requeijões cremosos processed cheeses included addition of encapsulated Lactobacillus acidophilus as probiotic source, and green banana biomass as partial fat substitute, in a total of five treatments. Analyses were performed to evaluate probiotic viability, microbiological conditions, centesimal composition (moisture, fat, fat in dry extract, protein, ashes, carbohydrates), water activity, resistant starch, colour, texture, lipid profile and sensory acceptability. The addition of green banana biomass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Functional foods; Fat reduction; Dairy derivative.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200451

Substantiation and development of technology for a new assortment of combined sour-milk drinks based on bio modified bean raw materials
Provedor de dados: 116
Autores: GURBANOV,Nusrat Heydar; GADIMOVA,Natavan Safar; GURBANOVA,Rena Islah; AKHUNDOVA,Nazilya Abdul; BABASHLI,Aynur Amirkhan.
Abstract Biologically complete combination products have a balanced chemical composition due to the combination of raw materials of animal and vegetable origin. In this aspect, research aimed at the development and creation of dairy and vegetable food of functional purpose are relevant. The article deals with the creation of a combined fermented milk drink such as kefir using milk from sprouted horse bean seeds and natural cow's milk. The possibility of obtaining and applying bean milk from germinated sprouted seeds for the development of the technology of combined fermented milk kefir beverage has been investigated. The mode and technology of obtaining bean milk and kefir drink with it was justified. The inclusion of bean milk from germinated seeds of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Combined kefir; Horse beans; Germination of sprouted seeds; Bean milk and cow's milk; Beverage technology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200517

Calcium oxalate content from two Amazonian amilaceous roots and the functional properties of their isolated starches
Provedor de dados: 116
Autores: RAMOS,Amanda da Silva; VERÇOSA,Rachel de Melo; TEIXEIRA,Sheylla Maria Luz; TEIXEIRA-COSTA,Bárbara Elisabeth.
Abstract The calcium oxalate content from two Amazonian amilaceous roots, Xanthosoma sagittifolium and Pachyrhizus tuberosus, before and after cooking were studied in the present work. Calcium oxalate raphides were observed by light microscopy in longitudinal sections from fresh tubers. The functional properties and physicochemical characteristics of isolated starches from both species were also investigated. Starches granules were observed with scanning electronic microscopy and presented a typical oval-circular shape, smooth surfaces and size ranging from 3.6 μm to 14 μm. Lower gel clarity, slightly high water-binding capacity, A-type starch structure and low values of crystallinity degree were determined in the isolated starches. High intensity bands...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Xanthosoma sagittifolium; Pachyrhizus tuberosus; Edible tubers; Starch; Calcium oxalate.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005206

Amassing of Hydroxymethylfurfural, 2- Furfural and 5- Methyl furfural in orange (Citrus reticulata) juice during storage
Provedor de dados: 116
Autores: RANDHAWA,Muhammad Atif; JAVED,Muhammad Sameem; AHMAD,Zulfiqar; AMJAD,Adnan; KHAN,Ammar Ahmad; SHAH,Faiz-ul-Hassan; FILZA,Fatima.
Abstract Vitamin C is imperative component of our nutrition and used as additive in many foods owing to its high antioxidant activity. The degradation of vitamin C content in orange juice during storage was evaluated in this study. Degradation of vitamin C in orange juice during 40 days storage at 0, 05, 15, 25, and 40 °C was analyzed and evaluated. Hydroxymethylfurfural (HMF) accumulation in orange juice acts as an indicator of ascorbic acid degradation. The initial vitamin C content in orange juice was 34.26 mg/100 mL that reduced when subjected to various storage conditions such as temperature and time. The loss of vitamin C during storage was lowest at 0 °C and the losses increased with rise in temperature. The Vitamin C content after 40 days in orange...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydroxymethylfurfural; Furfural; Orange juice; Storage; Vitamin C degradation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200382

Stability evaluation of juçara, banana and strawberry pasteurized smoothie during storage
Provedor de dados: 116
Autores: RIBEIRO,Leilson de Oliveira; BARBOSA,Isadora de Carvalho; SÁ,Daniela de Grandi Castro Freitas de; SILVA,Janine Passos Lima da; MATTA,Virgínia Martins da; FREITAS,Suely Pereira.
Abstract The objective of this work was to evaluate the effect of storage time and temperature on main characteristics of a juçara (20%), banana (40%) and strawberry (40%) pasteurized smoothie. The pasteurized smoothie was stored at 7 °C and 25 °C for 90 days. At both temperatures there was degradation of the smoothie anthocyanins, which, as expected, was more drastic in storage at room temperature, impacting also the instrumental color of the product. The microbiological quality of the product was assured at both storage temperatures, showing absence of Salmonella spp. and counting for thermotolerant coliforms &lt;3 MPN.g-1, which is in accordance to Brazilian legislation. Under refrigeration, the smoothie had good sensory acceptance with scores higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Euterpe edulis; Shelf life; Bioactive compounds; Instrumental color; Sensory evaluation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020000200387

Antioxidant potential of various solvent extract from Morus alba fruits and its major polyphenols composition
Provedor de dados: 65
Autores: Kobus-Cisowska,Joanna; Szczepaniak,Oskar; Szymanowska-Powałowska,Daria; Piechocka,Justyna; Szulc,Piotr; Dziedziński,Marcin.
ABSTRACT:  Extraction conditions are an important factor in the process of obtaining bioactive compounds from plant matrix. These compounds differ structurally. Structures of phyto-compounds and their interactions with other food ingredient are not fully known, while these two aspects should play a significant role in extrahents choice and determination of extraction process conditions. Mulberry (Morus alba) is a plant growing in Asia, which fruits are rich in bioactive ingredients and high anti-oxidative potential. In our study we analyzed mulberry fruits extracts differing in the extra hent applied: acetone, methanol, ethanol and water. All tested extracts possessed rich polyphenolic composition and radical scavenging ability. The significant differences...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morus alba; Antioxidants; Phenolic acids; Flavonoids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100751

Citral chemotype of the Lippia alba essential oil as an additive in simulated transport with different loading densities of tambaqui juveniles
Provedor de dados: 65
Autores: Silva,Hugo Napoleão Pereira da; Souza,Rodrigo Numeriano de; Sousa,Elen Monique de Oliveira; Mourão,Rosa Helena Veras; Baldisserotto,Bernardo; Silva,Lenise Vargas Flores da.
ABSTRACT: The objective of this study was to evaluate the efficacy of the citral chemotype of Lippia alba essential oil (EOLA) as an additive in a simulated transport with different loading densities of tambaqui (Colossoma macropomum) juveniles. Simulated transport of tambaqui juveniles at three loading densities (30, 60 and 90 fish/L) was carried out either with only water (WC) or 20 μL.L-1 EOLA. Dissolved oxygen levels, pH, conductivity and temperature of the water were measured at the beginning and end of the simulated transport. Treatment with EOLA did not change survival or dissolved oxygen levels at the end of simulation. The pH of the water at the end of simulation with EOLA was lower than in that of WC but did not change with loading density. Water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish transportation; Additive; Water quality; Lippia alba; Oxygen; Conductivity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400702

Presence of anti-Leptospira spp. antibodies in captive yellow-spotted river turtles (Podocnemis unifilis) in the Eastern Amazon
Provedor de dados: 65
Autores: Miranda,Juliana Maria Santos; Rocha,Katarine de Souza; Monteiro,Louysse Helene; Baia,Ianny Watuzy Monteiro; Monteiro,Thamillys Rayssa Marques; Brito,Jacqueline da Silva; Mesquita,Ellen Yasmin Eguchi; Moraes,Carla Cristina Guimarães de.
ABSTRACT: We describe anti-Leptospira spp. agglutinin in yellow-spotted river turtles (Podocnemis unifilis)in the Amazon region. Ninety-eight serum samples from individuals housed at the Bosque Rodrigues Alves Zoobotanical Garden of Amazonia, Belém, PA, Brazil, were subject to the microscopic agglutination test (MAT) using 19 different Leptospira spp. antigen serogroups. Thirty-four of the 98 samples (35%) were reactive, with titers ranging from 100 to 3200, and eight 8 reactive samples (23.5%) co-agglutinated under two or more serovars.The most common serogroup was Hebdomadis (26.9%, 7/26), followed by Semaranga (23%, 6/26), Shermani (19.2%, 5/26), Djasiman (11.5%, 3/26), and Australis (7.7%, 2/26); Bataviae, Javanica, and Sejroewere represented by a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Testudines; Microscopic agglutination test; Hebdomadis; Amazon Region.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100451

Seroprevalence of bovine echinococcusis in Pakistan
Provedor de dados: 65
Autores: Aziz,Fariha; Tasawar,Zahida; Lashari,Mushtaq Hussain.
ABSTRACT: Cystic echinococcosis is a parasitic infection of worldwide distribution, which, despite causing significant loss of health and money, is still a neglected disease. The present study was performed to determine the prevalence of bovine hydatid disease at Research Centre for the Conservation of Sahiwal Cattle, Jahangirabad, Khanewal, Pakistan. Five hundred bovine serum samples were tested for the detection of bovine Echinococcus antibodies (IgG), using the ELISA kits. Antibodies of bovine Echinococcus were detected in 24.2% cattle. Female cattle showed higher disease prevalence (33.2%) compared to (6.02%) in male cattle. There was positive association between sex of cattle and prevalence (P&lt;0.05). Positive correlation between disease prevalence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Echinococcus antibodies; Seroprevalence; ELISA; Age; Sex.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400501

Nonlinear quantile regression to describe the dry matter accumulation of garlic plants
Provedor de dados: 65
Autores: Puiatti,Guilherme Alves; Cecon,Paulo Roberto; Nascimento,Moysés; Nascimento,Ana Carolina Campana; Carneiro,Antônio Policarpo Souza; Silva,Fabyano Fonseca e; Puiatti,Mário; Cruz,Cosme Damião.
ABSTRACT:  The objective of this study was to adjust nonlinear quantile regression models for the study of dry matter accumulation in garlic plants over time, and to compare them to models fitted by the ordinary least squares method. The total dry matter of nine garlic accessions belonging to the Vegetable Germplasm Bank of Universidade Federal de Viçosa (BGH/UFV) was measured in four stages (60, 90, 120 and 150 days after planting), and those values were used for the nonlinear regression models fitting. For each accession, there was an adjustment of one model of quantile regression (τ=0.5) and one based on the least squares method. The nonlinear regression model fitted was the Logistic. The Akaike Information Criterion was used to evaluate the goodness of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quantile regression; Nonlinear regression; Allium sativum L.; Growth rate; Cluster analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100203

Lolium multiflorum seed quality analyzed by accredited laboratories in the Rio Grande do Sul State
Provedor de dados: 65
Autores: Huth,Caroline; Lopes,Sidinei José; Müller,Caren Alessandra; Rosa,Cariane Pedroso da; Andrade,Fabrício Fuzzer de; Santos,Larissa Staggemeier dos; Mattioni,Nilson Matheus.
ABSTRACT: The objective of this research was to carry out a survey, through the levels of physical purity, percentage of pure seeds, number of other seeds, and the physiological quality through germination, in the samples of ryegrass seeds analyzed in laboratories accredited by the Ministry of Agriculture, Livestock and Supply in Rio Grande do Sul. Data from 3959 ryegrass samples analyzed from the period 2014 to 2017 were compiled. Quality of the seeds was presented through the percentage of samples within the standards recommended for commercialization, for the variables germination, pure seeds, seeds of cultivated species, wild, noxious, tolerated and noxiously forbidden, in all factors, cultivar, region of origin, category and crop of seed production....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ryegrass; Seed production; Germination; Purity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200203

Transmission of Microdochium albescens from seeds to seedlings in the pre-germinated cultivation system of irrigated rice
Provedor de dados: 65
Autores: Scheidt,Bruno Tabarelli; Garcia,Jaquelini; Casa,Ricardo Trezzi; Coelho,Cileide Maria Medeiros; Bogo,Amauri; Berghetti,Juliano.
ABSTRACT: The fungus Microdochium albescens is one of the main pathogens associated with irrigated rice seeds in southern Brazil. The objective of the present study was to quantify the transmission of M. albescens from naturally infected seeds to the crown, coleoptile, and first true leaf of the seedlings of six cultivars growing in pre-germinated cultivation system of irrigated rice. Seeding was carried out on a water-saturated substrate, using four untreated seed lots for each of the six cultivars. At 14 days after sowing, the crown, coleoptile, and first true leaf of the seedlings were carefully highlighted, and the samples were disinfected and plated onto potato-sucrose-agar culture medium. M. albescens was transmitted asymptomatically to crown,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Gerlachia oryzae; Infected seed; Transmission rate.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200151

Extraction, characterization and microencapsulation of isoflavones from soybean molasses
Provedor de dados: 65
Autores: Batista,Vanessa Sabrina Fagundes; Nunes,Graciele Lorenzoni; Viegas,Gabriela Ilha; Lucas,Bruna Nichelle; Bochi,Vivian Caetano; Emanuelli,Tatiana; Barin,Juliano Smanioto; Menezes,Cristiano Ragagnin de; Rosa,Claudia Severo da.
ABSTRACT: This study aimed to extract isoflavones from soybean molasses with different solvents, furthermore, the selected extract, which showed overall desirable characteristics was selected to evaluate the potentials of different encapsulating agents. The encapsulating agents employed for the study included 18% Maltodextrin DE20 (T1), 18% Hi-maize (T2), and a mixture of equal proportions of 9% Maltodextrin DE20 and 9% of Hi-maize (T3). Solvents such as 80% ethanol and methanol, and grain alcohol in varying different concentrations of 50 and 80% were used for the studies. The best solvent for the extraction of phenolics and total isoflavones was 50% cereal alcohol, this extract also presented higher antioxidant activity. Evaluation of the encapsulating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spray-drying; Antioxidant; Phenolics; Isoflavones.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300751

Effects of storage on vis-NIR-SWIR reflectance spectra of Mombasa grass leaf samples
Provedor de dados: 65
Autores: Tavares,Tiago Rodrigues; Fiorio,Peterson Ricardo; Seixas,Hugo Tameirão; Garcia,Amparo Cisneiros; Barros,Pedro Paulo da Silva.
ABSTRACT: Vis-NIR-SWIR reflectance spectra of leaf samples, collected in the laboratory, allow the calibration of predictive models to quantify their physicochemical attributes in a practical manner and without producing chemical residues. This technique should enable the development of management strategies for intensification of pasture use. However, spectral analysis performed in the laboratory may be affected by the deterioration of plant material during transport from the field to the lab, so storage methods are necessary. This research aimed to evaluate the effects of different storage methods on the spectral response of Mombasa grass leaves. Three methods were evaluated: (i) artificially refrigerated environment, (ii) humid environment, and (iii)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diffuse reflectance spectroscopy; Hyperspectral sensors; Forage; Precision agriculture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300401

Erratum
Provedor de dados: 65
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100951

Chilled raw milk quality: a case study in Zona da Mata region, Minas Gerais State, Brazil
Provedor de dados: 65
Autores: Lima,Luiz Paulo de; Braga,Gustavo Bastos; Perez,Ronaldo; Carvalho,Antonio Fernandes de.
ABSTRACT: This paper aimed to analyze the evolution of the quality of raw milk produced by producers in the Zona da Mata region, in the state of Minas Gerais, between 2012 and 2018. For this purpose, we used the linear mixed-effects model to analyze the monthly evolution of the results of milk composition indicators (fat, protein, and defatted dry extract - DDE), somatic cell count - SCC, and total bacterial count - TBC, from the official monthly registry of 94 milk producers, suppliers of a region’s dairy. Results indicate a continuous reduction in the milk composition indicators between 2014 and 2018. For the SCC and TBC indicators, we identified only one-off reductions. The supply of a larger volume of milk was associated with increased TBC. Seasonality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dairy; Legislation; National Milk Quality Improvement Program.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400451

Phenotypic diversity of pea (Pisum sativum L.) varieties and the polyphenols, flavonoids, and antioxidant activity of their seeds
Provedor de dados: 65
Autores: Zhao,Tianyao; Su,Wenjin; Qin,Yang; Wang,Liyun; Kang,Yufan.
ABSTRACT: Pea (Pisum sativum L.) is the fourth leading legume crop in the world, and its demand is increasing. In this study, the morphological characteristics (seed shape, seed surface, seed coat color, hilum color, cotyledon color, 100-seed weight and color values), total phenolic content (TPC), total flavonoid content (TFC), 2,2’-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) free radical scavenging capacity and ferric reducing antioxidant power (FRAP) of 75 pea cultivars were investigated. Results showed rich genetic diversity and a wide range of phenolic contents and antioxidant activities. Sixteen varieties enriched with phenolic contents and high antioxidant activities were screened out. A significant correlation was reported among color...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pea; Phenotypic diversity; Flavonoid; Antioxidant activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500402

Hematology and serum biochemistry of broilers at the initial and growth stages submitted to different levels of digestible sulfur amino acids
Provedor de dados: 65
Autores: Carvalho,Genilson Bezerra de; Martins,Poliana Carneiro; Rezende,Pedro Moraes; Santos,Januária Silva; Oliveira,Evelyn de; Trentin,Thays de Campos; Martins,Danieli Brolo; Stringhini,José Henrique; Café,Marcos Barcellos.
ABSTRACT: The objective of this study was to evaluate the effect of digestible methionine and cystine (Met + Cys) levels on the hematological and serum biochemical parameters of broiler chickens during the initial and growth stages. For this, 1,800 male chicks of the Coob 500 strain were used, with 900 chicks in the initial phase (1 to 21 days old) and 900 chicks in the growth phase (22 to 42 days old), distributed in a completely randomized design of five treatments with six replicates of 30 birds. The treatments consisted of 0.545, 0.616, 0.711, 0.782, and 0.853%; and 0.514, 0.571, 0.647, 0.704, and 0.761% digestible Met + Cys for “1 to 21” and “22 to 42” days of breeding, respectively. Results showed that digestible Met + Cys levels in broiler feed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acid metabolism; Cysteine; Methionine; Immune system; Poultry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500652

Molecular prevalence and factors associated with Babesia vogeli infection in dogs in the Cerrado Mato-Grossense region of Brazil
Provedor de dados: 65
Autores: Castro,Vanessa Vieira; Ayres,Eveline da Cruz Boa Sorte; Canei,Darlan Henrique; Pereira,Mariana Elisa; Sousa,Valéria Régia Franco; Chitarra,Cristiane Silva; Dutra,Valéria; Nakazato,Luciano; Almeida,Arleana do Bom Parto Ferreira de.
ABSTRACT: Canine babesiosis is a common haemoparasitosis in Brazil. Caused by parasites of the genus Babesia, it is transmitted by ixodid ticks and affects domestic and wild canids. The objective of this study was to verify the prevalence of Babesia species (spp.) using molecular methods in dogs living in urban and rural areas of Cuiabá, Mato Grosso State, Brazil, and to identify the main factors associated with infection. A total of 407 samples from 407 dogs were evaluated using a polymerase chain reaction (PCR) technique, among which Babesia species (spp.) was amplified in 10 (2.5%). Although, no statistical association was found among the variables studied (p&gt;0.05), greater positivity was observed in dogs&lt;1 year of age, male sex, those with free...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Babesiosis; Molecular identification; Cuiaba.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200500

Impact of adult sons’ marriage squeeze on the mental health of parents in rural China
Provedor de dados: 65
Autores: Chen,Guangyan; Si,Wei; Qiu,Lingling.
ABSTRACT: Studying the influencing factors and interventions of mental health in rural China has important practical significance for promoting personal development and social progress. Using the 2016 waves of the China Family Panel Studies data, this paper examined the effect of adult sons’ marriage squeeze on parents’ mental health in rural China and its corresponding mechanisms. Our study showed a significant negative association between adult sons’ marriage squeeze and the mental health status of rural parents. Moreover, the negative association of adult sons’ marriage squeeze with mental health is larger for female parents, parents who are less than 60 years old and parents living with children. In addition, we investigated possible mechanisms of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adult son; Marriage squeeze; Mental health; Rural parent.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200901

Antimicrobial activity and chemical characterization of the bark decoction of cumaru stem
Provedor de dados: 65
Autores: Ferreira,Maria Jaiana Gomes; Nogueira,Patrícia Coelho do Nascimento; Dias,Flayanna Gouveia Braga; Silva,Larissa Morais Ribeiro da; Silveira,Edilberto Rocha; Figueiredo,Evânia Altina Teixeira de.
ABSTRACT: The plant, Amburana cearensis A. C. Smith (Fabaceae), commonly called cumaru, is widespread in the Caatinga cearense, a less known ecosystem in Brazil. A. cearensis is rich in several compounds like protocatechuic acid, tannins, coumarin, flavonoids and phenolic heterosides, such as amburosides A and B, that have been isolated. The aim of this study was to determine the antimicrobial potential and draw the chemical profile of the distinct characteristics of A. cearensis stem bark decoction, for its possible potential as a food conservation agent. The chemical compounds were characterized by one- and two-dimensional 1H and 13C NMR analyses and Liquid Chromatography-Mass Spectrometry (LCMS). The compounds of coumarin, amburosides A and B, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioactive compounds; Microorganisms; Natural antimicrobials.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300452

Potential of parents and hybrids experimental of the yellow melon
Provedor de dados: 65
Autores: Cavalcante Neto,José Galdino; Ferreira,Karmita Thainá Correia; Aragão,Fernando Antonio Souza de; Antônio,Rafaela Priscila; Nunes,Glauber Henrique de Sousa.
ABSTRACT: Melon or muskmelon (Cucumis melo L.) is of considerable economic importance in Brazil. Nearly all the cultivars currently grown are hybrids. Heterosis has been used to advantage in the melon plant, and the use of uniform hybrids is one of the reasons for successful cultivation. The aim of the present study was to evaluate the agronomic potential of yellow melon lines and hybrids. An experiment was conducted in randomized blocks with three replications to evaluate 24 hybrids generated by crosses among three elite lines used as female parents (AF-01, AF-02, and AF-03) and eight lines used as male parents (LAM-01, LAM-02, LAM-03, LAM-04, LAM-05, LAM-06, LAM-07, and LAM-08). Yield and fruit quality traits were evaluated. Partial diallel analysis was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo L.; Combining ability; Heterosis; Diallel.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200204

Oxidative stability of tilapia feeds containing Saccharomyces cerevisiae and Spirulina platensis
Provedor de dados: 65
Autores: Grassi,Thiago Luís Magnani; Sedlacek-Bassani,Juliana; Ponsano,Elisa Helena Giglio.
ABSTRACT:  The aim of this study was to evaluate the effect of the inclusion of microbial biomass on the oxidative rancidity of tilapia rations stored for 12 months. Treatments included a control diet and diets supplemented with either 0.01% vitamin E, 0.25 and 0.5% of Saccharomyces cerevisiae and 0.25 and 0.5% of Spirulina platensis. Experimental diets were stored in the dark inside plastic bags at room temperature (25 °C) for 12 months. The oxidative rancidity was measured as thiobarbituric acid reactive substances (TBARS). It was concluded that the inclusions of Spirulina platensis at 0.25% (1.734 ± 0.206) and 0.5% (1.629 ± 0.181) and Saccharomyces cerevisiae at 0.5% (1.459 ± 0.305) minimized the oxidative rancidity in comparation to control diet (2.843...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass; Lipid oxidation; Ratio; TBARS.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100652

Prepartum lameness on subsequent lactation in Holstein dairy cows
Provedor de dados: 65
Autores: Barbosa,Antônio Amaral; Araújo,Maria Carolina Narval de; Krusser,Rafael Herbstrith; Martins,Charles Ferreira; Schmitt,Eduardo; Rabassa,Viviane Rohrig; Pino,Francisco Augusto Burkert Del; Brauner,Cássio Cassal; Corrêa,Marcio Nunes.
ABSTRACT: The aim of this study was to confirm the possible consequences of prepartum lameness on subsequent lactation among Holstein cows. In this research, 27 multiparous cows, were monitored from the 30th to 63rd day, relative to calving. Thirty days prior to parturition, the animals were segregated into two groups based on the locomotion score (LS), where LS 1 is attributed to animals without claudication, LS 2 to those with suspected lameness and LS 3, 4 and 5 to those with mild, moderate and severe lameness, respectively; in the lame cows group (LC) (n=15), the animals displayed LS ≥ 3, whereas in the non-lame cows group (NLC) (n=12) they showed LS 1. Milk production, body condition score (BCS) and blood concentration levels of β-hydroxybutyrate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lameness; Cow; Transition period.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500701

Bovine genital campylobacteriosis: main features and perspectives for diagnosis and control
Provedor de dados: 65
Autores: Balzan,Cláudia; Ziech,Rosangela Estel; Gressler,Letícia Trevisan; Vargas,Agueda Palmira Castagna de.
ABSTRACT: Bovine genital campylobacteriosis (BGC) is a venereal disease caused by Campylobacter fetus subsp. venerealis. In countries with large cattle herds, such as Brazil, where the use of natural breeding as a reproductive strategy is a common practice, BGC is considered an important cause of reproductive failure and economic losses. In these cases, the bull is the asymptomatic carrier of the bacterium and the infected females can have infertility and even abortions. The techniques for the diagnosis of C. fetus are isolation in culture medium and identification by biochemical tests, immunofluorescence, immunoenzymatic assays and molecular techniques. Disease control is based on vaccination with bacterins. This review described the epidemiology,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campylobacter fetus subsp. venerealis; Infertility; Venereal disease; Beef cattle.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300451

Permanent wilt point from two methods for different combinations of citrus rootstock
Provedor de dados: 65
Autores: Ferreira,Rivani Oliveira; Souza,Luciano da Silva; Nascimento,Marilza Neves do; Silveira,Felipe Gomes Frederico da.
ABSTRACT: Considering that water is extremely important in agricultural production, but with restricted availability in some Brazilian regions, this research sought to identify the water limit for the rootstocks: Cleóptra tangerine (Citrus reshni hort. Ex Tan), Volkamer lime (Citrus Volkameriano Pasquale), Citrandarin ‘indio’ (TSK X TRENG 256), Santa Cruz Rangpur lime (Citrus × limonia) and Sunki Tropical tangerine (Citrus sunki HORT. EX TAN) grafted orange ‘Pera’ (Citrus sinensis), obtained by two methods: the traditional method of determining the permanent wilting point described by SHANTZ &amp; BRIGGS (1912) recovery of plants with saturated environment and by irrigating recovery method. The experimental design used was in a completely randomized design...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Permanent wilting point; Water déficit; Hydrical stress.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100202

Rice farmer’s poverty and its determinants: evidence from Dogofiri village of Office du Niger zone in Mali
Provedor de dados: 65
Autores: Coulibaly,Brahima; Li,Shixiang; Wang,Zhanqi.
ABSTRACT: The aim of this research was to contribute to a better understanding of rice farmer’s poverty of Office du Niger (ON) in Mali at village-level. Data were collected through survey with 110 head family farms in the village of Dogofiri. Quantitative data were analyzed using descriptive statistics. Multiple linear regression models were used to analyze the main determinants of poverty. Results indicated that the factors of physical capital and human capital as well as government policy have a significant influence on the poverty of family farms through production, age, family size, education and health support, agricultural credit and water fees. Policies aimed to improve the family farm’s income and boosting rice production to alleviate poverty...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rice farmer; Poverty; Determinants; Office du Niger; Mali.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200900

Genomic characterization of Canine circovirus detected in a dog with intermittent hemorrhagic gastroenteritis in Brazil
Provedor de dados: 65
Autores: Cruz,Taís Fukuta; Batista,Thiago Neves; Vieira,Ester Mariane; Portela,Luiz Marcos Frediani; Baccarin,Amanda Mahnke; Gradiz,Jéssica Jehle; Araújo Junior,João Pessoa.
ABSTRACT: Because Canine circovirus (CanineCV) is a new species of the genus Circovirus, several issues related to its epidemiology, pathogenesis and clinical disease remain unknown. Thus, this study aimed to perform the characterization of the first complete genome sequence of CanineCV detected in a dog with diarrhea in Brazil. A stool sample was collected of a ten-month-old female German Shepherd dog which had signs of intermittent hemorrhagic gastroenteritis, vomiting, and a history of eating raw pork. The complete CanineCV genome was sequenced by Next-Generation Sequencing. The sequence had 2,063 nucleotides, showed a typical genomic organization for circovirus, and was grouped with strain 214 described in the United States by phylogenetic analysis....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Circovirus; Canine circovirus; Genomic characterization; Gastroenteritis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500451

Green (Detox) juice physicochemical properties and stabilization effect of naturals emulsifiers
Provedor de dados: 65
Autores: Fraga,Jully Lacerda; Sant’Ana,Gizele Cardoso Fontes; Silva,Kelly Alencar; Amaral,Priscilla Filomena Fonseca.
ABSTRACT: Green or “detox” juice is a mixture of fruit juice with vegetables, which has been used intensively by consumers seeking for healthy food. Physicochemical properties of Green juice were accessed in the present research, which brings new insights for the use of this beverage in human diet. A total phenolic content of 2833.60 mg GAE (Gallic acid equivalent)/ g of juice and a Total Antioxidant Capacity by FRAP of 323.62 µM Fe2SO4 / g of juice and by ABTS•+ of 333.11 µM Trolox/ g of juice, indicated good antioxidant properties. Low energy and reducing sugar content indicate its use for low calorie diet, but low carbohydrate and protein content prove that Green juice cannot be used as meal replacement. The addition of a microbial biosurfactant (YlBio)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Yarrowia lipolytica; Chia seed mucilage; Food rheology; Pseudoplastic fluid; Bioemulsifiers.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300752

Effects of shading on the growth, development and yield of winged bean (Psophocarpus tetragonolobus)
Provedor de dados: 65
Autores: Raai,Murthazar Naim; Zain,Nurul Amalina Mohd; Osman,Normaniza; Rejab,Nur Ardiyana; Sahruzaini,Nurul Amylia; Cheng,Acga.
ABSTRACT: An experiment was conducted to investigate the effects of different shading regimes [i.e., 60% (heavy), 30% (moderate), and 0% (control)] on 25 traits associated with the morphological features, photosynthetic gas exchange and agronomic characteristics of winged bean (Psophocarpus tetragonolobus), an underutilized protein-rich legume from the tropics. Collectively, 80% of the studied variables displayed significant differences (P&lt;0.05) between at least two shade treatments. Shading generally showed most pronounced effect on the physiological traits of the legume, whereby the stomatal conductance, photosynthetic and transpiration rate differed significantly among plants for all treatments. The non-shaded plants were observed to have superior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphology; Physiology; Shading; Winged bean; Yield.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200202

Seed germination and antioxidant enzyme activity in seedlings of diploid and tetraploid bahiagrass under water restriction
Provedor de dados: 65
Autores: Bortolin,Gabriel Streck; Salinas-Arcienega,Alfredo José; Galviz-Fajardo,Yutcelia Carolina; Amarante,Luciano do; Pedroso,Carlos Eduardo da Silva; Oliveira,João Carlos Pinto; Köpp,Mauricio Marini; Martins,Andrea Bicca Noguez; Tunes,Lilian Vanussa Madruga de.
ABSTRACT: The objective of the following research was to investigate the physiological responses of two bahiagrass genotypes (Paspalum notatum Flügge) submitted to water restriction, induced by polyethylene glycol (PEG6000), during seed germination. Seeds of cv. Pensacola (diploid) and Bagual ecotype (tetraploid) were placed on paper moistened with osmotic solutions at potentials of 0.0; -0.1; -0.2 and -0.3 MPa. Composed of two subsamples of 100 seeds and four experimental units per treatment, the germination test was conducted in a germination chamber under alternating temperatures of 30 °C (8 hours) and 20 °C (16 hours), with presence of light during the higher temperature. Final germination percentage and germination speed index of the seeds, as well as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paspalum notatum Flügge; Ecotype; Polyethylene glycol; Drought stress; Oxidative stress.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500202

Physicochemical, aromatic and sensory properties of the ‘Riesling Italico’ wines fermented with Saccharomyces and non-Saccharomyces yeasts
Provedor de dados: 65
Autores: Quincozes,Lorena; Marcon,Ângela Rossi; Spinelli,Fernanda Rodrigues; Gabbardo,Marcos; Eckhardt,Daniel Pazzini; Cunha,Wellynthon Machado da; Costa,Vagner Brasil; Jacques,Rodrigo Josemar Seminoti; Schumacher,Rafael Lizandro.
ABSTRACT: The sensory quality of wines is affected by the compounds produced by the action of the yeasts used in alcoholic fermentation. This work aimed at assessing the physicochemical, aromatic and sensory properties of the ‘Riesling Italico’ white wines produced by using the Saccharomyces and non-Saccharomyces yeasts. The yeasts S. cerevisiae, S. cerevisiae cerevisiae, S. bayanus, Torulaspora delbrueckii and Metschnikowia pulcherrima were inoculated individually into the must. For 10 days, the alcohol was left to ferment in 7 L carboys in triplicate, at 15º C temperature. The standard physicochemical analyses were done and the quality of the wines was determined. The volatile compounds were identified and quantitative descriptive sensory analyses were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: White wines; Torulaspora delbrueckii; Metschnikowia pulcherrima; Volatile compounds; Sensory analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600751

Work in organic farming: an overview
Provedor de dados: 65
Autores: Maas,Larissa; Malvestiti,Rosane; Gontijo,Leila Amaral.
ABSTRACT: In addition to the expansion of sustainability with crop rotation and use of residues from the property itself, the main characteristics of organic agriculture are the extinction of the use of chemicals and producing food free of these contaminants. This review aimed to find evidence that substantiates the improvement of the health and working conditions of farmers working with this model of agriculture. To this end, the ProKnow-C instrument was used, which recommends seven steps to select and evaluate the publications found. Exclusion criteria included studies related to the consumption of these products, school feeding, management, and cultivation techniques or studies conducted with non-organic farmers. After the exclusion, 11 documents...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Working conditions in agriculture; Cognitive load; Quality of life of workers.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400901

Immunogenicity in sheep of Uruguayan commercial vaccines against bovine alphaherpesvirus 1, 5 and bovine pestiviruses
Provedor de dados: 65
Autores: Merchioratto,Ingryd; Aurélio,Alana de Almeida; Villela,Janice Machado; Stone,Nicole Vieira; Roman,Isac Junior; Traesel,Carolina Kist; Brum,Mário Celso Sperotto.
ABSTRACT: The serological responses induced by four commercial inactivated Uruguayan vaccines against bovine alphaherpesviruses (BoHV)-1 and -5 and bovine pestiviruses (BVDV-1, BVDV-2, and HoBiPeV) were evaluated in sheep. Thirty-seven sheep were immunized twice (day 0 and 25) and their serum samples were tested at different intervals (days 0, 25, 40, 60, and 90) post-vaccination (PV). Among the four vaccines tested, only one (G4) could induce the production of moderate neutralizing antibody titers against BoHV-1 and -5 and BVDV-1 and -2. The G3 vaccine showed a neutralizing serological response against the bovine alphaherpesviruses only. The G1 and G2 vaccines produced extremely low levels of antibodies in a few vaccinated animals only (geometric mean...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serology; Neutralizing antibodies; Vaccine response; Reproductive disease.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400454

Phosphorylated protein concentrate pumpkin seed (Cucurbita moschata): optimization by response surface methodology and nutritional characterization
Provedor de dados: 65
Autores: Lovatto,Naglezi de Menezes; Loureiro,Bruno Bianchi; Bender,Ana Betine Beutinger; Loureiro,Cristiane Bianchi; Goulart,Fernanda Rodrigues; Speroni,Caroline Sefrin; Macagnan,Fernanda Teixeira; Piana,Mariana; Silva,Leila Picolli da.
ABSTRACT: Response surface methodology was used to determine optimum conditions for extraction of protein from pumpkin seed meal. A central composite rotational design (CCRD) including independent variables such, pH and sodium trimetaphosphate (STMP) content was used. Maximum yield was obtained at a central point of CCRD, with STMP content and pH of 4% and 4.5, respectively. These conditions resulted in protein yield of 50.04 g of soluble protein from extract/100 g pumpkin seed. The optimization of pH and STMP content allowed obtaining a product with a high protein concentration (62.56 g 100 g-1), digestibility (62.03 g 100 g-1) and concentration of essential amino acids (27.26 g 100 g-1). Regarding the polyphenols concentration, phosphorylated protein...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acids; Central composite rotational design; In vitro digestibility; New ingredient.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200751

In vivo sensitivity of Phakopsora pachyrhizi to fungicides
Provedor de dados: 65
Autores: Chechi,Amanda; Ghissi-Mazetti,Valéria Cecília; Zuchelli,Elias; Deuner,Carolina Cardoso; Forcelini,Carlos Alberto; Boller,Walter.
ABSTRACT:  Asian soybean rust is one of the most destructive diseases that can be found in this crop. It can be largely controlled by fungicide application. The objective was to assess the sensitivity of P. pachyrhizi isolates to fungicides. The tests were performed in a completely randomized design, with six replicates. The sensitivity of twelve isolates to site-specific and multisite fungicides at concentrations of 0.1; 1.0; 10.0, and 100.0 mg L-1, plus a control with absence of fungicide (0.0 mg L-1) was assessed. Soybean leaflets were immersed in the appropriate fungicide solutions, disposed in wet chambers in plastic boxes, and inoculated using each uredinia suspension of P. pachyhrizi (5.0 x 104 uredospores mL-1), separately. Boxes were incubated for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asian soybean rust; Detached leaf test; Effective concentration; Multisite fungicide; Soybean.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100151

Green soybean seeds: effect on physiological quality
Provedor de dados: 65
Autores: Teixeira,Sheila Bigolin; Silva,Joseano Graciliano da; Meneguzzo,Michele Renata Revers; Martins,Andrea Bicca Noguez; Meneghello,Geri Eduardo; Tunes,Lilian Vanussa Madruga de.
ABSTRACT: The objective of this research was to assess the manner in which the presence of green soybean seeds affects their physiological quality. In this study, six lots of soybean seeds of cultivar 5958RSF IPRO with 0, 0, 7, 8, 16 and 18% of green seeds were examined. The tests done included the first germination count, germination, electrical conductivity, field emergence, accelerated aging, emergence speed index, Tetrazolium, length, dry mass and seedling growth curve. Results were tested employing the normality test and analysis of variance, and the means were compared by the Tukey test at 5% probability level, employing the Rbio statistical program. Growth data were analyzed by the nonlinear regression analytical method, using the SigmaPlot 12.0...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic stress; Decay; Seedling growth; Glycine max.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200201

Does Cereal crops asymmetrically affect Agriculture gross domestic product in Pakistan? Using NARDL model approach
Provedor de dados: 65
Autores: Ali,Imad; Khan,Imran; Ali,Hashmat; Baz,Khan; Zhang,Qiangqiang; Khan,Ajab; Huo,Xuexi.
ABSTRACT: This study contributes to the extant literature on the nexus among rice, maize and wheat production with agriculture gross domestic product (AGDP) of Pakistan. We use time series data from 1970 to 2017 and employ the Non-linear Autoregressive Distributed Lag (NARDL) model. Short run and long run shocks between the selected variables and result’s is checked through the co-integration and nonlinear error correction model.Autoregressive distributed lag bound testing approach for co-integration and to find the relationship between variables Granger causality test is applied.Our results confirm co-integration, positive shocks results show that rice, maize and wheat production have significantly influence on AGDP. The asymmetrically positive shocks of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NARDL model; Asymmetric causality; Symmetric causality; Cereal crops; Pakistan AGDP.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500403

Effects of different concentrations of sodium azide and chloramphenicol on the preservation of raw milk samples
Provedor de dados: 65
Autores: Vancin,Franciele Rampazzo; Webber,Bruna; Bondan,Carlos; Daroit,Luciane; Santos,Luciana Ruschel dos; Rodrigues,Laura Beatriz.
ABSTRACT: The preservation of milk samples for microbiological analyses by the Brazilian Network of Milk Quality Control Laboratories requires the addition of preservatives to maintain the microbiota from the time of sample collection to the moment of analysis. The number of microorganisms can change as a result of the active ingredients and concentration of the preservative, as well as due to interactions between the preservatives, incubation time, and packaging temperature. The objective of this research was to evaluate the conservation potential of different concentrations of sodium azide and chloramphenicol on the analytical shelf life of milk samples. Two farms were selected, one with a low bacterial count and one with a high bacterial count. The milk...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milk; Azidiol; Individual bacterial count; Flow cytometry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200750

Carotenoids, sugars, ascorbic acid, total phenolics, and antioxidant activity of murici from Brazilian Cerrado during refrigerated storage
Provedor de dados: 65
Autores: Belisário,Celso Martins; Soares,Antônio Gomes; Coneglian,Regina Celi Cavestré; Plácido,Geovana Rocha; Castro,Carlos Frederico de Souza; Rodrigues,Lamonier Antônio Nery.
ABSTRACT: Native fruits are economically important to small producers, and they are a important part of the diet of several communities. Therefore, postharvest studies of these fruits are essential. In addition, research involving their chemical composition can identify substances that add potential value to the fruits, especially from a nutritional and medicinal standpoint. This study characterized the fruits of the muricizeiro shrub (Byrsonima crassifolia, Malpighiaceae), which were harvested from native plants on private properties and stored for 16 days at a mean temperature of 12 °C. The fruits were evaluated during storage for: 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, ascorbic acid content, phenolics and carotenoids total,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Postharvest; Native fruits; Byrsonima crassifolia; Malpighiaceae; Antioxidant activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400751

Women working in animal husbandry: a study in the agroecological transition context
Provedor de dados: 65
Autores: Ferreira,Eduarda Lopes; Barros,Rodrigo Alves; Bevilacqua,Paula Dias.
ABSTRACT: This study investigated the engagement of women in animal husbandry in agroecological transitions scenarios and reflects on the advancements and challenges encountered in overcoming gender inequalities in rural areas. Semi-structured interviews and participant observation were conducted in nine properties in three municipalities in the region of Zona da Mata of Minas Gerais State. Women are involved in husbandry of different animal species, and participate in the management, processing, and marketing of products, contributing to food diversification, self-consumption, and income generation. Overcoming gender inequality in an agroecological scenario requires making the work and knowledge of women farmers visible and increasing their prominence,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sexual division of labor; Family farming; Feminist economy; Public policies.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100901

Micropropagation of Stevia rebaudiana plants
Provedor de dados: 65
Autores: Rokosa,Marta Teresa; Kulpa,Danuta.
ABSTRACT:  The aim of the study was to develop optimum composition of plant growth regulators in media for the propagation and rooting of shoots of stevia (Stevia rebaudiana Bertoni) in in vitro cultures. Single-node shoot fragments obtained from plants propagated on MS medium were placed onto media supplemented with: BAP, 2iP and KIN at concentrations: 0.5, 1, 2 and 5 mg∙dm-3, whereas at the rooting stage with addition of: IAA, IBA and NAA at concentrations 1, 2, 4 and 8 mg∙dm-3. The highest number of shoots and leaves was reported for plants propagated on MS medium enriched with 0.5 mg∙dm-3 BAP. The greatest number of the longest roots was developed by stevia on the MS medium enriched with 1 mg∙dm-3 IAA.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Micropropagation; Plant growth regulators; Cytokinins; Auxins; Steviosides.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100403

Chemical composition of various plant extracts and their in vitro efficacy in control of Fasciola hepatica eggs
Provedor de dados: 65
Autores: Marques,Larice Tosi; Guedes,Roselena Abreu; Rodrigues,Winner Duque; Archanjo,Anderson Barros; Severi,Juliana Aparecida; Martins,Isabella Vilhena Freire.
ABSTRACT: Fasciolosis has been diagnosed in cattle, goats, sheep and horses in southern and southeastern Brazil. Effective alternative treatments are the targets of study. One promising alternative is the use of plant extracts. The aim of this study was to perform phytochemical analysis of extracts of Eugenia uniflora L., Harpagophytum procumbens, Psidium guajava L. and Stryphnodendron adstringens, and to evaluate the in vitro efficacy of these extracts on ovicidal activity in Fasciola hepatica. Plant extracts were analyzed for phytochemical properties. F. hepatica eggs were collected directly from the gallbladders of animals diagnosed as positive for fasciolosis on post mortem examination. One hundred eggs were incubated with 3 ml of each extract at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eugenia uniflora L.; Harpagophytum procumbens; Psidium guajava L.; Stryphnodendron adstringens; Ovicidal activity on Fasciola.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500501

Exercise training session-induced metabolic acidosis in barrel racing horses
Provedor de dados: 65
Autores: Gomes,Cláudio Luís Nina; Alves,Andressa Mendes; Ribeiro Filho,José Dantas; Moraes Junior,Felipe de Jesus; Chaves,Ricardo de Macedo; Aranha,Rosany Maria Cunha; Fucuta,Rodrigo Santos; Ribeiro,Bruna Maria.
ABSTRACT: In horses, acid-base balance disorders are common after intense exercise, with metabolic acidosis being the most common after high intensity and short duration exercise. Understanding the processes that cause them is fundamental for procedures, which aimed to improve the physical fitness of horses for athletic purposes, with fewer changes in homeostasis. The present study assessed the effect of barrel racing on acid base balance in Quarter Horse, at the following times: T0 - immediately before training; T1 - immediately after the end of the second course; T2 - one hour after the end of the second course. In T1, there was decrease (P&lt;0.05) in the pH, HCO3 -, pCO2, cBase, tCO2 and strong ion difference concentrations, while the plasma lactate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horse; Exercise; Acidosis; Lactate; Barrel racing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500601

Cryopreservation of Brazilian green dwarf coconut plumules by droplet-vitrification
Provedor de dados: 65
Autores: Lédo,Ana da Silva; Santana,Fernanda Vieira; Oliveira,Annie Carolina Araújo de; Oliveira,Leila Albuquerque Resende de; Silva,Ana Veruska Cruz da.
ABSTRACT: This study evaluated the effect of vitrification solutions and exposure time on the cryopreservation of Brazilian green dwarf coconut plumules (BGD) using the droplet vitrification technique. Explants were excised from BGD mature fruits from the Active Germplasm Bank of Embrapa Tabuleiros Costeiros, Sergipe, Brazil. Firstly, embryos were disinfected, and after excision, plumules were pre-cultivated for 72 hours in Y3 + 0.6 M sucrose + 2.2 g L-1 Gelrite® culture medium. Plumules were exposed to PVS2 and PVS3 solutions for 15 and 30 minutes and rapidly immersed in liquid nitrogen (-196 ºC). After cryopreservation, they were thawed in culture medium solution (Y3 + 1.2 M sucrose) and cultured in regeneration medium. The experimental design was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocos nucifera L.; Cryoprotection; PVS2; PVS3.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100401

Different tray cell volumes for lettuce grown in conventional and hydroponic system
Provedor de dados: 65
Autores: Ceccherini,Guilherme José; Lima,Tiago José Leme de; Sala,Fernando César.
ABSTRACT: Nowadays, an important economic movement is involved in the improvement of polyethylene trays for the production of seedlings, being developed with different volumes, numbers and cell formats in an each culture-specific manner. The objective of the present study was to evaluate the performance of curly lettuce originated from seedlings from trays with different volumes, through the comparison between conventional and hydroponic-NFT cultivation. Five volumes of trays (10, 20, 30, 40 and 50 cm³ of cell-1) were tested in conventional and hydroponic cultivation, from February to March 2016. For the purpose of comparison, the plants were evaluated through the characteristics of height, circumference, stem diameter, number of leaves, fresh shoot mass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa L.; Seedling; Comparative; Field; Hydroponic.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100205

Occurrence and antimicrobial resistance of bacteria in retail market spices
Provedor de dados: 65
Autores: Costa,Milena da Cruz; Cruz,Alexsandra Iarlen Cabral; Bispo,Aline Simões da Rocha; Ferreira,Mariza Alves; Costa,João Albany; Evangelista-Barreto,Norma Suely.
ABSTRACT: This study aimed to evaluate the microbiological quality and the transmission of multidrug-resistant bacteria in different spices sold in town fairs (local food markets) in the municipalities of Recôncavo Baiano. Samples of black pepper, oregano, and cinnamon were collected over a period of six months and investigated for coliforms at 45 °C, Staphylococcus spp., Staphylococcus aureus, Bacillus spp., Bacillus cereus, Escherichia coli and Salmonella spp. The contamination in the black pepper samples (log 4.66 CFU g-1) was higher (P&gt;0.05), than those of cinnamon (log 2.55 CFU g-1) and oregano (log 2.49 CFU g-1), particularly for B. cereus. E. coli (89%) and Salmonella spp. (67%) were isolated only from black pepper. B. cereus and S. aureus showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spice plants; Antibacterial activity; Multiresistance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400455

Optimal plot size for experiments with black oats and the common vetch
Provedor de dados: 65
Autores: Cargnelutti Filho,Alberto; Souza,Jéssica Maronez de; Pezzini,Rafael Vieira; Neu,Ismael Mario Marcio; Silveira,Daniela Lixinski; Procedi,Andréia.
ABSTRACT: The aim of this study was to determine the optimal plot size for evaluating the fresh weight of black oats (Avena strigosa Schreb) and the common vetch (Vicia sativa L.) in scenarios comprising combinations of the number of treatments, number of replications and levels of precision. Fifteen uniformity trials were conducted with single-crop and intercropped black oats and vetch. Fresh weight was evaluated in 540 basic experimental units (BEU), each of 1 m × 1 m (36 BEU per trial). The Smith index of soil heterogeneity (1938) was estimated. Plot size was determined using the HATHEWAY method (1961), in scenarios comprising combinations of i treatments (i = 5, 10, 15 and 20), r replications (r = 3, 4, 5, 6, 7 and 8) and d levels of precision (d = 2%,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avena strigosa; Cover crop; Experimental design; Uniformity trial; Vicia sativa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300203

Comparison of the protocols for obtaining platelet-rich plasma in dogs: a cellular study
Provedor de dados: 65
Autores: Vidal Júnior,André William Masseaux; Silva,Ricardo Siqueira da; Marques,Ana Paula Lopes; Souza,Heloísa Justen Moreira de.
ABSTRACT: This study aimed to evaluate two protocols (PA and PB) that are used to obtain canine platelet-rich plasma (PRP) for cellularity. Twenty healthy dogs were used. Blood samples were collected and placed in two tubes of 3.2% sodium citrate. PA used double centrifugation at 210 x g, and 370 x g and PB used double centrifugation with 140 x g and 330 x g. The PRP samples from the protocols were examined in terms of their platelet, erythrocyte, and leukocyte count in the Neubauer chamber, differential leukocyte count and platelet morphological observation in blood smears. Data (mean and standard deviation) were analyzed with the 95% probability t-test (P &lt;0.05) using Pearson’s correlation to test the relationship between platelets and erythrocytes,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth factors; Platelet-rich plasma; Cell therapy; Canines.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300602

Inequalities in the spatial concentration of agricultural crops among the micro- and mesoregions of Minas Gerais, Brazil
Provedor de dados: 65
Autores: Rodrigues,Erica Costa; Tavares,Ricardo; Meireles,Adriana Lúcia.
ABSTRACT: The present research aimed to map and estimate the spatial autocorrelation of agricultural crops of coffee, corn, soybeans, sugarcane and beans in the state of Minas Gerais and analyzed in the period from 2011 to 2015. The planted area data were obtained of the Systematic Survey of Agricultural Production - IBGE. The Exploratory Spatial Data Analysis model was used to calculate spatial autocorrelation using the Global and Local Moran Index. Significant spatial self-correction was reported in all studied cultures (P-value &lt;0.05). The regions with the highest concentration of planted area are located in the western portion of the state. The least significant planting regions were the municipalities located in the Jequitinhonha and Vale do Mucuri...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spatial analysis; Agricultural culture; Space clusters; Microregion.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500201

Substitution of ractopamine by safflower or coconut oil as an additive in finishing pig diets
Provedor de dados: 65
Autores: Costa,Clara Viviane Silva da; Moreira,José Aparecido; Marinho,Andreza Lourenço; Silva,Natália Rocha; Carmo,Myllena Emelly de Paiva; Ramalho,Adriana Margarida Zambotto; Aguiar,Emerson Moreira; Souza,Janete Gouveia de; Teixeira,Elisanie Neiva Magalhães.
ABSTRACT: The objective of this study was to explore the substitution of ractopamine by coconut or safflower oil in finishing pig diets. The study included 24 crossbred barrows weighing 78.00 ± 8.76 kg distributed in a randomized block design with four treatments and six replicates composed of: basal ration (BR), BR + 10 ppm ractopamine, BR + four 1 g capsules of safflower oil, and BR + four 1 g capsules of coconut oil. Performance evaluation showed that safflower oil, ractopamine, and coconut oil supplementation had a significant effect (P &lt; 0.05) on weight gain and feed conversion. Carcass-related variables were also affected by the treatments (P &lt; 0.05), with fat thickness 3 (FT3) reduced by the use of safflower oil, ractopamine, and coconut oil....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Β-adrenergic; Fat deposition; Lipid metabolism; Vegetable oils.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600651

Contribution of environmental factors in the formation of biofilms by Alicyclobacillus acidoterrestris on surfaces of the orange juice industry
Provedor de dados: 65
Autores: Dutra,Tatiane Viana; Prado,Daniela Biral do; Anjos,Márcia Maria dos; Machinski Junior,Miguel; Mikcha,Jane Martha Graton; Abreu Filho,Benício Alves de.
ABSTRACT: The objective of this study was to evaluate the effect of the initial microbial load, temperature and contact time on the biofilm formation of Alicyclobacillus acidoterrestris on stainless steel and natural food-grade rubber using orange juice as culture medium. The low initial load of A. acidoterrestris (2 log CFU/mL) led to biofilm formation on the stainless steel surface after 48 h of contact at 28 ºC and after 24 h at 45 ºC, and on natural food-grade rubber surface after 48 h of contact at both temperatures. The high initial microbial load (5 log CFU/mL) led to biofilm formation on stainless steel after 4 h of contact at 28 °C and 45 °C, while biofilm was formed on natural food-grade rubber after 8 h of contact at 28 °C and 4 h at 45 °C. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Concentrated orange juice; Stainless steel; Natural food-grade rubber; Spores; Biofilm.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300753

Gene stacking as a strategy to confer characteristics of agronomic importance in plants by genetic engineering
Provedor de dados: 65
Autores: Ceccon,Cássia Canzi; Caverzan,Andréia; Margis,Rogerio; Salvadori,José Roberto; Grando,Magali Ferrari.
ABSTRACT: Gene stacking refers to the introduction of two or more transgenes of agronomic interest in the same plant. The main methods for genetically engineering plants with gene stacking involve (i) the simultaneous introduction, by the co-transformation process, and (ii) the sequential introduction of genes using the re-transformation processes or the sexual crossing between separate transgenic events. In general, the choice of the best method varies according to the species of interest and the availability of genetic constructions and preexisting transgenic events. We also present here the use of minichromosome technology as a potential future gene stacking technology. The purpose of this review was to discuss aspects related to the methodology for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Co-transformation; Re-transformation; Sexual crossing; Transgene; Minichromosomes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600401

Amylose content and micromorphology of popcorn progenies with different popping expansion volumes
Provedor de dados: 65
Autores: Freire,Ana Izabella; Castro,Elisa de Melo; Pereira,Ariana Mota; Cruz,Renata Ranielly Pedroza; Souza,Filipe Bittencourt Machado de; Chagas,Wantuir Filipe Teixeira; Souza,João Cândido de.
ABSTRACT: Popcorn (Zea mays var. everta) has a higher commercial value than common maize, in addition to being a popular food among consumers. Today, there is a constant search for cultivars with superior performance for several traits of interest in the case of popcorn, yield and popping expansion. On this basis, this project proposes to characterize progenies of popcorn with different values ​​of expansion capacity regarding chemical composition and micromorphology. Kernels from the fifth cycle (C5) of intrapopulation recurrent selection were evaluated. The progenies were selected based on the popping expansion volume of their kernels. The kernels were quantified for amylose and analyzed for starch granule arrangement and pericarp thickness by scanning...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays var. everta; Endosperm; Pericarp; Starch granule; Thickness.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200401

Elaboration, evaluation of nutritional information and physical-chemical stability of dairy fermented drink with caja-mango pulp
Provedor de dados: 65
Autores: Souza,Handray Fernandes de; Borges,Lara Aguiar; Lopes,João Pedro Antunes; Carvalho,Bruna Mara Aparecida de; Santos,Sérgio Henrique Sousa; Almeida,Anna Christina de; Lima,William James Nogueira; Brandi,Igor Viana.
ABSTRACT: Whey is a by-product of the dairy industry of great importance due to its high nutritional value, and can be used for the manufacture of fermented dairy drinks which, combined with fruit, increase the nutritional value and add characteristic flavors. Therefore, a fermented dairy beverage with caja-mango pulp (Spondias dulcis) was elaborated and its nutritional information as well as the physical-chemical stability were evaluated during storage. The results showed that the nutritional information met the requirements stipulated by the Brazilian legislation. The physical-chemical stability of the dairy fermented drink in terms of pH, acidity, syneresis and sedimentation was influenced by the storage time, possibly associated with uncontrolled...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Whey; Dairy industry; Nutritional value; Spondias dulcis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100753

Aortic thrombosis in a dog with chronic lymphocytic leukemia
Provedor de dados: 65
Autores: Ripplinger,Angel; Silva,Ana Paula da; Wrzesinski,Mathias Reginatto; Ferrarin,Dênis Antonio; Schwab,Marcelo Luís; Pozzobon,Ricardo; Flores,Mariana Martins; Thompson,Ruth Pamela; Mario,Fabiana; Mazzanti,Alexandre.
ABSTRACT: The aim of this report was to describe a case of aortic thrombosis (AT) secondary to chronic lymphocytic leukemia (CLL). Although, different types of neoplasms are described as possible causes of aortic thrombosis, CLL was not yet considered. The dog showed signs of lameness that worsened with exercise. The diagnosis of AT was made by ultrasound examination. The diagnosis of CLL was made by necropsy, which showed the presence of small lymphocytes with the appearance of mature lymphocytes in the bone marrow, spleen, liver and kidneys. The importance of including CLL in the possible causes of AT in dogs, in addition to the suspicion of AT in cases of neuromuscular disease, was highlighted.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Lymphoid leukemia; Ischemic neuromyopathy; Thrombus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400601

Nutritional value of gluten-free rice and bean based cake mix
Provedor de dados: 65
Autores: Bassinello,Priscila Zaczuk; Bento,Juliana Aparecida Correia; Gomes,Luciana de Oliveira Froes; Caliari,Márcio; Oomah,Bassoodeo Dave.
ABSTRACT: Gluten-free foods are a growing trend in the domestic and international markets, contributing to health and wellness, especially the celiac public. The objective of this study was to create a new option of gluten-free food by replacing wheat flour by rice grit flour, cornstarch, and extruded split bean flour, and to aggregate value to low cost industrial byproducts. A new food product was developed and its components analyzed for their nutritional characteristics and changes during baking. The baked cakes can be a source of protein, had a good starch and protein digestibility, and low antinutritional factors, notably tannins. Incorporation of an extruded bean flour in a gluten-free cake mix improves protein digestibility, total dietary fiber, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Phaseolus vulgaris; Starch and protein digestibility; Extruded bean flour; Antinutritional compounds.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600752

Herbaceous biomass yield in the saline soils during the dry and rainy seasons in the municipality of Pentecoste, CE, Brazil
Provedor de dados: 65
Autores: Dias,Francisco Yago Elias de Castro; Bonilla,Oriel Herrera; Lucena,Eliseu Marlônio Pereira de; Lacerda,Claudivan Ferreira de; Oliveira,Daniel Pereira de; Oliveira,Davi Rodrigues.
ABSTRACT: This study was an endeavor undertaken to assess the biomass yield of the species that are native to a particular region characterized by saline soil, in the Irrigated Perimeter Curu-Pentecoste, in the municipality of Pentecoste-CE, corresponding to the qualities of moisture, pH and electrical conductivity (EC) of the soil. The experiment was conducted in six areas, with area 1, the one nearest to the collecting drain, the end having the highest salinity and area 6, the one furthest away from the collecting drain, the end with the lowest salinity. The factorial design with the 2 x 6 scheme was adopted, in which the first and second factors referred, respectively, to the seasons (drought and rain collection) and collection areas. In each area,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytomass; Halophytes; Salinization.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300251

Refrigeration and modified atmosphere to the conservation of ‘Malasia’ Star fruit
Provedor de dados: 65
Autores: Lameira,Rafaely das Chagas; Silva,Bárbara Marçon Pereira da; Valentini,Silvia Regina de Toledo; Cia,Patrícia; Bron,Ilana Urbano.
ABSTRACT: Despite the fact that cold storage and modified atmosphere techniques have already been studied for fresh cut Star fruit, little has been done considering the whole fruit. Besides that, each cultivar has its peculiarities, so the efficiency of combined postharvest treatments should be studied. The objective of this study was to evaluate the effect of polyvinyl chloride (PVC), 8.5 µm thick and low-density polyethylene (LDPE), 33 µm thick associated with cold storage (10 ± 1 °C and 5 ± 1 °C / 85 ± 5% RH) on the conservation of ‘Malasia’ Star fruit. Storage at 25 oC maintained Star fruit overall quality, regardless of the film type, up to four days. The weight loss was higher in fruit packed with PVC, but this fact was not noticed by the sensory...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Averrhoa carambola L.; Films; Postharvest; Ripening.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500203

Genetic variability of selected Passiflora alata genotypes based on the physical characteristics of fruits
Provedor de dados: 65
Autores: D'Abadia,Ana Claudia Alves; Faleiro,Fábio Gelape; Costa,Ana Maria; Junqueira,Nilton Tadeu Vilela; Braga,Marcelo Fideles.
ABSTRACT: Over several past centuries, specific plant populations have been carefully selected to filter strains with higher agronomic performance. Genetic variability is most essential for successful selection. The Passiflora genus offers great inter- and intra-specific variability. This study aimed to evaluate the physical characteristics of the genotypes of the elite passion fruit (Passiflora alata) for selection purpose. We considered the physical traits of fruit mass, longitudinal and equatorial diameters, peel thickness and color, and pulp mass and volume without and with seeds and pulp yield. The sources of variation for the analysis of variance included the fruits of 8 elite genotypes, with 3 replications, whose means were compared by Tukey’s test...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passiflora; Sweet passion fruit; Clustering; Main components.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200402

Physical and physiological quality of seeds of Campo Grande Stylosanthes coated with different binder materials
Provedor de dados: 65
Autores: Baroni,Danilo Força; Vieira,Henrique Duarte; Silva,Flávio Wirlan Andrade da; Acha,Amanda Justino; Pires,José Inácio Coelho.
ABSTRACT: The binder materials used in seed coating provide adherence of the filler materials onto the seeds. Adequate concentrations of the binder promote good physical characteristics of coating while not impairing seed physiological characteristics. Thus, the objective of this study was to evaluate the type and the concentration of binder materials that allow the best physical and physiological characteristics in coated seeds of Campo Grande Stylosanthes. Seed coating was carried out in a coating pan, using sand as the filling material. The treatments consisted of 2 types of binders mixed in 3 ratios (PVA glue and gum arabic glue, diluted in water, 3:1, 2:1, and 1:1), and uncoated seeds as control. The coated seeds were evaluated for physical and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Germination; Coating; Stylosanthes capitata/macrocephala.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400201

Grazing height targets for Alexandergrass pastures under continuous stocking in integrated crop-livestock system
Provedor de dados: 65
Autores: Soares,André Brugnara; Schmitt,Daniel; Migliorini,Francisco; Assmann,Tangriani Simioni; Assmann,Alceu Luís.
ABSTRACT:  The aim of this experiment was to identify grazing height targets for Alexandergrass pastures under continuous stocking in integrated crop-livestock system (ICLS). For this purpose, twelve pastures were cultivated into an ICLS area, and maintained at 10, 20, 30, or 40 cm using grazing goats. The following variables were analyzed: leaf and herbage mass, accumulation rate, and allowance; leaf:stem ratio; chemical composition of hand-plucked samples; stocking rate; average daily gain and gain per area. The data were submitted to regression and correlation analysis. Significance was set at 5% (P≤0.05). The main results were: i) herbage and leaf lamina mass increased linearly with grazing height, and pastures maintained at 20 cm already presented the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop rotation; Grazing intensity; Goats; Urochloa plantaginea.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100651

Vernonia condensata Baker: an alternative for large-scale seedling production
Provedor de dados: 65
Autores: Almeida,Lilia Vieira da Silva; Oliveira,Vania Jesus dos Santos de; Jacobi,Claudia Cecilia Blaszkowski de; Almeida,Weliton Antonio Bastos de; Carvalho,Mariane de Jesus da Silva de.
ABSTRACT: The increasing use of Vernonia condensata Baker highlights the importance of developing strategies to reduce the impact of exploitation on nature reserves. The aim of this study was to establish a micropropagation protocol to produce homogenous plants with high phytosanitary quality. Apical, nodal, and internodal segments of plants grown in the field were used for in vitro growth. The segments were disinfected in sodium hypochlorite solution (1.0 and 2.0%) for 15 and 30 minutes and then transferred to Petri dishes containing MS culture medium for 30 days. A completely randomized factorial experiment (3 x 2 x 2) with five replicates was designed. After this period, a completely randomized in vitro multiplication experiment was carried out with six...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytokinin; In vitro culture; Environmental sustainability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300201

Grumixama (Eugenia brasiliensis Lam.) cultivated in the Cerrado has high content of bioactive compounds and great antioxidant potential
Provedor de dados: 65
Autores: Xu,KaWai; Alves-Santos,Aline Medeiros; Dias,Tiago; Naves,Maria Margareth Veloso.
ABSTRACT: Grumixama (Eugenia brasiliensis Lam.) is a Brazilian berry native to the Atlantic Rainforest. Information on nutritional and bioactive profiles of the fruit cultivated in the Brazilian Savannah (Cerrado) is not available in literature. The aim of this study was to investigate the physical and proximate composition; mineral, total phenolics, total tannins and total carotenoids contents; and antioxidant capacity (DPPH and FRAP assays) of the dark purple grumixama cultivated in the Cerrado area (Goiás State). Results showed a similar physical and proximate composition to those of grumixama native to the Atlantic Rainforest. However, grumixama from Cerrado presented the highest dietary fiber and magnesium contents. In addition, the Cerrado grumixama...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eugenia brasiliensis Lam.; Nutrients; Bioactive compounds; Polyphenols; Antioxidant activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400752

Potentially toxic metals of vegetable gardens of urban schools in Lages, Santa Catarina, Brazil
Provedor de dados: 65
Autores: Mafra,Maria Sueli Heberle; Lunardi,Willian Galdino; Siegloch,Ana Emilia; Rech,Ângela Fonseca; Rech,Tássio Dresch; Campos,Mari Lucia; Kempka,Aniela Pinto; Werner,Simone Silmara.
ABSTRACT: Urban environments are contaminated in many ways with persistent organic and inorganic pollutants as a result of anthropogenic activities, endangering human health and natural resources. The objective of the present study was to evaluate the soil contamination by cobalt (Co), chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn) in 10 vegetable gardens of urban schools located near or on Botucatu sandstone outcrops of Guarani Aquifer in the urban areas of Lages, Santa Catarina, Brazil. In each garden, three soil samples at each position (in the soil immediately outside and the soil in the garden) were collected at a depth of 0-20 cm. The ISO 11466 method was used to extract the metals. Inductively coupled plasma...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmentally sensitive areas; Urban gardens; Environmental contamination.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300252

Adaptability and stability of Coffea canephora Pierre ex Froehner genotypes in the Western Amazon
Provedor de dados: 65
Autores: Moraes,Marcos Santana; Rocha,Rodrigo Barros; Teixeira,Alexsandro Lara; Espindula,Marcelo Curitiba; Silva,Camila Andrade; Lunz,Aureny Maria Pereira.
ABSTRACT:  The development of Coffea canephora cultivars is based on the characterization of genotype × environment interaction, which is interpreted to quantify the differential behavior of clones at different cultivation sites. The objective of this research was to study the genotype x environment interaction aiming to select clones of broad and specific adaptation to different environments of the Western Amazon. Twelve clones with hybrid characteristics of the botanical varieties Conilon and Robusta and four open pollinated clones, had their performance evaluated in comparison with four controls. The genotype × environment interaction was interpreted based on the environmental quality index, the non-parametric estimator of Lin and Binns, 1988 and on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: G×E interaction; Genetic progress; Coffee.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100402

Immunomodulatory action of jacalin from Artocarpus integrifolia and mannoprotein from Saccharomyces uvarum on the humoral immunity of laying hens
Provedor de dados: 65
Autores: Silva,Marco Aurélio Chiara; Silva,Miriele Caroline da; Pinheiro,João Waine; Castro-Goméz,Raul Jorge Hernan; Murakami,Alice Eiko; Loyola,Wagner; Venancio,Emerson José.
ABSTRACT: Advances in the fields of glycobiology and immunology have provided many insights into the role of carbohydrate-protein interactions in the immune system. Jacalin of Artocarpus integrifolia (JCA) and structural mannoprotein of Saccharomyces uvarum (MPS) are molecules with immunomodulatory properties. JCA is an IgA human lectin binding molecule that causes the mitogenic stimulation of immune cells, production of cytokines, chemotaxis, and activation of leukocytes. Studies on the immunomodulatory properties of JCA and MPS in mammals and fish suggest that they have an action on antibody production. The aim of this study was to investigate the possible action of JCA and MPS on the production of specific antibodies in laying hens. For this, laying...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artocarpus integrifolia; Chickens; IgY; Jacalin; Mannoprotein; Humoral immune response; Saccharomyces uvarum.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400453

Edaphic mesostigmatid mites (Parasitiformes, Mesostigmata) in a region of the Pampa biome of the state of Rio Grande do Sul, Brazil
Provedor de dados: 65
Autores: Duarte,Adriane da Fonseca; Moreira,Grazielle Furtado; Cunha,Uemerson Silva da; Siqueira,Paulo Ricardo Ebert; Moraes,Gilberto José de.
ABSTRACT: The diversity of edaphic mites in Brazilian natural environments is little known, especially in the Pampa biome, in southern region of Brazil. The objective of this study was to evaluate the diversity and abundance of edaphic fauna of mesostigmatid mites in a region of the Pampa biome of the state of Rio Grande do Sul. Soil samples were collected in the municipality of Aceguá, in 2012 and 2013. Mites were extracted using Berlese-Tullgren modified funnels. In total, 1900 mesostigmatid mites were collected, representing 44 species from 23 genera and 10 families. The most abundant families were Rhodacaridae, Ologamasidae and Laelapidae, with respectively 903, 578 and 214 specimens, corresponding respectively to 47.5, 30.4 and 11.3% of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Predators; Biological control; Biodiversity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200152

Fatal systemic Mortierella wolfii infection in a neonatal calf in southern Brazil
Provedor de dados: 65
Autores: Bianchi,Ronaldo Michel; Vielmo,Andréia; Schwertz,Claiton Ismael; Cabreira,Adan; Rocha,Jéssica Goulart da; Siqueira,Franciele Maboni; Pavarini,Saulo Petinatti.
ABSTRACT: This study described the pathological and microbiological aspects of a fatal systemic Mortierella wolfii infection in a neonatal calf in southern Brazil. The calf was born clinically normal, but on the third day of life it presented apathy, unilateral hypopyon, and neurological signs, and in the next day it was euthanized. At necropsy, multiple soft, and white-yellow nodules were observed in the liver, spleen, kidneys, mesenteric lymph nodes, heart, and lungs. In the brain, reddish, and friable areas were found. In the eye, there were anterior and posterior synechiae, diffuse thickening of choroid, and anterior chamber filled by whitish and friable material. Microscopically, areas of necrosis, pyogranulomatous inflammation, vasculitis,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle diseases; Fungal diseases; Pathology; Molecular diagnosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100551

Plot size and number of replications for ryegrass experiments
Provedor de dados: 65
Autores: Toebe,Marcos; Cargnelutti Filho,Alberto; Carvalho,Juliana Oliveira de; Tartaglia,Francieli de Lima; Cortes,Alessandra Ferreira; Mello,Anderson Chuquel; Melo,Patrícia Jesus de.
ABSTRACT: The objective of this research was to determine the optimal plot size and the number of replications to evaluate the fresh matter of ryegrass sown to haul. Twenty uniformity trials were conducted, each trial with 16 basic experimental units (BEU) of 0.5 m2. At 117, 118 and 119 days after sowing, the fresh matter of ryegrass in the BEUs of 5, 10 and 5 uniformity trials, respectively, were determined. The optimal plot size was determined by the maximum curvature method of the variation coefficient model. Next, the replications number was determined in scenarios formed by combinations of i treatments (i = 3, 4, ... 50) and d minimum differences between means of treatments to be detected as significant at 5% of probability by the Tukey test,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lolium multiflorum L.; Uniformity trials; Experiment planning; Maximum curvature method.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100204

Seroprevalence for equine infectious anaemia in Equidae seized in the municipality of Petrópolis, State of Rio de Janeiro, Brazil, 2015/2018
Provedor de dados: 65
Autores: Cruz,Astrid Paola Mattheis; Aquino,Maria Helena Consedey de; Helayael,Michel José Sales Abdalla; Silva,Márcio Roberto; Ribeiro,João Batista; Hott,Marcos Cicarini; Magalhães Júnior,Walter Coelho Pereira de; Mendonça,Juliana França Monteiro de; Souza,Guilherme Nunes de.
ABSTRACT: Equine infectious anaemia (EIA) is a globally distributed disease caused by a lentivirus. EIA is a notifiable disease that should be reported to the Official Veterinary Service (SVO). Outbreaks are controlled by sacrificing the EIA-positive animals. The study analysed the prevalence of EIA in 165 Equidae seized on public roads in the municipality of Petrópolis, Rio de Janeiro, Brazil, from 2015 to 2018. After the seizure and identification of the Equidae, blood was collected to diagnose EIA. A prevalence of 11.8% was observed among the Equidae seized, and the main risk factor was the region of seizure. A kernel-smoothed map showed areas with the highest density of EIA-positive Equidae in the centre and to the east of the study area. In this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Equine; Spatial distribution; Infectious diseases.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400452

Production of biquinho pepper in different growing seasons characterized by the logistic model and its critical points
Provedor de dados: 65
Autores: Diel,Maria Inês; Lúcio,Alessandro Dal’Col; Valera,Oscar Valeriano Sanchéz; Sari,Bruno Giacomini; Olivoto,Tiago; Pinheiro,Marcos Vinícius Marques; Melo,Patrícia Jesus de; Tartaglia,Francieli de Lima; Schmidt,Denise.
ABSTRACT: The objective of this study was to characterize the production of biquinho pepper through the interpretation of parameter estimates from the logistic model and its critical points obtained by the partial derivatives of the function, and to indicate the best cultivar and growing season for subtropical climate sites. For this, a 2x3 factorial experiment was conducted with two cultivars of biquinho pepper (BRS Moema and Airetama biquinho) in three growing seasons (E1: October 2015, E2: November 2015, E3: January 2016). The logistic non-linear model for fruit mass was specified as a function of the accumulated thermal sum, and the critical points were calculated through the partial derivatives of the model, in order to characterize the productive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum chinense; Temperature; Fruit mass; Non-linear model.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400202

Determinants of credit constraint of artisanal fishermen in Ghana
Provedor de dados: 65
Autores: Twumasi,Martinson Ankrah; Jiang,Yuansheng; Danquah,Frank Osei; Chandio,Abbas Ali; Asiamah,Bright Korankye.
ABSTRACT: Due to the high risk associated with fishing, access to credit becomes very difficult for fishermen. The study was conducted to investigate the determinants of credit constraint on artisanal fishermen with survey data collected from artisanal fishermen in the Western and Central Regions of Ghana. A multi-stage sampling procedure was used to select respondents for the study. Data collected were analyzed with the aid of descriptive and IV-Probit model. Most of the fishermen were in their youthful stage. From the study, while boat ownership and off-fishing activity reduce the probability being credit constrained, complex procedure, and disbursement time lag increase fishermen probability of being credit constrained. The findings of the study also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Credit constraint; Artisanal fishermen; IV-Probit model.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300931

Persistence effect determination of variability in forecasting of agricultural and road machinery national production
Provedor de dados: 65
Autores: Martins,Tailon; Barreto,Alisson Castro; Coronel,Daniel Arruda; Jacobi,Luciane Flores; Lirio,Valentina Wolff; Souza,Adriano Mendonça.
ABSTRACT: The objective of this research was to forecast the Brazilian national production of agricultural and road machinery in the short term by BOX &amp; JENKINS methodology and determine the persistence effect. Data were obtained at National Association of Automotive Vehicle Manufacturers (ANFAVEA) from January 1960 to October 2019, totaling 718 monthly observations. The Autoregressive Integrated Moving Average (ARIMA) and Autoregressive Conditional Heteroscedasticity (ARCH) methodology were used. The ARIMA (2,1,1)-ARCH (2) model was fitted and persistence of 0.60 was determined, showing that the instability in the series will be for a long period of time.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Time series; Prediction; Volatility; Agricultural machinery; Road machinery.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600351

Photosynthetic index and nitrogen assimilation in rapeseed seedlings transplanted in soil with ammonium glufosinate
Provedor de dados: 65
Autores: Cui,Cui; Xie,Xurong; Wang,Liu-Yan; Wang,Rui-Li; Lei,Wei; Lv,Jun; Chen,Liuyi; Gao,Huan-Huan; Ye,Sang; Huang,Linya; Zhou,Qing-Yuan.
ABSTRACT: Herbicide application is an effective weed control method for mitigating crop yield loss; however, herbicide overuse can cause toxicity in non-target plants. The present study evaluated the effects of glufosinate at recommended dose for agricultural application (0.45 kg ha-1) and at overuse dose (0.90 kg ha-1) glufosinate application on photosynthetic performance and nitrogen assimilation of the rapeseed varieties D148 and Zhongshuang 11 (ZS11). Both glufosinate concentrations significantly decreased the content of chlorophyll and nitrogenous compounds, except free proline, and the activity of glutamine synthetase and glutamate synthase, and increased the activity of glutamic acid dehydrogenase in both varieties. When the concentration of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Residual glufosinate; Rapeseed; Seedling transplanted; Photosynthesis; Nitrogen assimilation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400251

Economic profitability of crop rotation systems in the Caiuá sandstone area
Provedor de dados: 65
Autores: Volsi,Bruno; Bordin,Ivan; Higashi,Gabriel Eiji; Telles,Tiago Santos.
ABSTRACT: Even in areas of predominance of Caiuá sandstone, with soils of low natural fertility that are highly susceptible to erosion and degradation processes, farmers have adopted systems with little diversification, because they believe that they provide a greater economic return. However, agricultural practices such as crop rotation can bring agronomic benefits in terms of conservation agriculture, in addition to economic gains, circumventing edaphoclimatic difficulties in the region. In this context, the objective of this study is to verify whether no-till crop rotation systems are economically profitable, in a Caiuá sandstone area in the northwest region of the Brazilian state of Paraná. To this end, an experiment was conducted in the municipality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cost analysis; Agricultural production; Agricultural economy; Rural administration; Conservation agriculture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200931

Creole bean seeds microbiolization with doses of Trichoderma harzianum
Provedor de dados: 65
Autores: Dalzotto,Laís; Tortelli,Brenda; Stefanski,Francine Spitza; Sacon,Deivid; Silva,Vanessa Neumann; Milanesi,Paola Mendes.
ABSTRACT: In the search for improved yields, seed treatment by microbiolization has been used as an alternative to chemical treatment. The objective was to verify the physiological and sanitary quality of creole bean seeds, var. Chumbinho, after microbiolization with doses of a commercial product (c.p.) with Trichoderma harzianum (strain ESALQ-1306). The treatments were: T1) 100 mL c.p./100 kg seeds; T2) 150 mL c.p.; T3) 200 mL c.p.; T4) 200 mL of chemical treatment (c.p., 250 g L-1 fipronil + 25 g L-1 pyraclostrobin + 225 g L-1 thiophanate-methyl); and T5) control (without coating of seeds). The tests were: sanitary test (blotter test); germination and first count; accelerated aging, cold germination without soil, speed of germination rate (SGR), seedling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonism; Biological control; Phaseolus vulgaris L.; Vigor.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500151

Micropropagation of Chapada Diamantina ornamental bromeliad
Provedor de dados: 65
Autores: Lima,Andressa Priscila Piancó Santos; Brito,Alone Lima; Santana,José Raniere Ferreira de.
ABSTRACT: Sincoraea mucugensis (Wand. &amp; A.A. Conc.) LOUZADA &amp; WAND, an endangered bromeliad, is confined to the central region of the Chapada Diamantina, in the municipality of Mucugê, Brazil. From various researches, it is evident that for the propagation of this species, the in vitro technique is a feasible option. However, due to the low multiplication rates reported in various papers, this study aimed to establish a micropropagation protocol of direct organogenesis for S. mucugensis. First, the inoculation of the stem explants was done in MS ½ culture medium which contained different levels of BAP (0.00; 6.66; 8.88; 11.10; 13.20 µM) and NAA (0.00; 2.60; 5.20 µM). These shoots were then subjected to a couple of distinct rooting periods (of 30-...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: In vitro propagation; Acclimatization; Sincoraea mucugensis; NAA.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200400

Segmental hypoplasia of the spinal cord and syringomyelia in a calf
Provedor de dados: 65
Autores: Souza,Luciana Aparecida de; Lopes,Samara de Paula; Daoualibi,Yasmin; Mósena,Ana Cristina Sbaraini; Gonçalo,Vinícius Vasconcellos da Cruz; Veiga,Cristiano Chaves Pessoa da; Spíndola,Bruno Ferreira; Silva,Wanessa Pereira da; Ubiali,Daniel Guimarães; Caldas,Saulo Andrade.
ABSTRACT: Congenital malformations are functional and structural changes in organ systems, tissues, or organs that may develop during the embryonic or fetal phase. Spinal cord malformations, such as segmental hypoplasia of the spinal cord (SHSC) and syringomyelia, are rare in bovines. A Girolando calf from Valença, Rio de Janeiro, was admitted to the Veterinary Hospital of Universidade Federal Rural do Rio de Janeiro because of motor incoordination. Clinical evaluation revealed a 5-cm depression area in the spine at the dorsal line of the thoracic region. Neurological examination revealed reduced proprioception, pelvic limb extension with increased nociceptive activity, and reduced anal reflex. In radiographic examination, the body of the T11 vertebra had...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Congenital malformations; Myelodysplasia; Segmental hypoplasia of the spinal cord; Histopathology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300551

Selection of sugarcane families and clones under cold stress
Provedor de dados: 65
Autores: Verissimo,Mario Alvaro Aloisio; Azeredo,Amaro Afonso Campos de; Silva,Sergio Delmar dos Anjos e; Brasileiro,Bruno Portela; Bespalhok Filho,João Carlos; Daros,Edelclaiton; Oliveira,Ricardo Augusto de.
ABSTRACT:  The purpose of this study was to select cold-tolerant sugarcane families and clones. Evaluations were carried out during three selection phases in the municipality of Pelotas, state of Rio Grande do Sul, Brazil. The experiments were arranged in an incomplete block design, with initially 4,452 seedlings of 53 full-sib families. Aside from the traits soluble solids content (BRX), tons of stalks per hectare (TSH) and tons of brixper hectare (TBH), the survival of the apical bud (ABS) was evaluated in the first selection stage (T1) of the breeding program. At the end of three selection phases, 15 clones of 14 of the 53 families evaluated in the first phase (T1) were selected for the experimental phase. Of these, the clones RS/PR126066, RS/PR126044,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum spp.; Abiotic stress; Plant breeding; Frost.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100152

Assessment of physicochemical, textural and microbiological properties of brazilian white mold surface-ripened cheeses: a technological approach
Provedor de dados: 65
Autores: Pereira,Antonio Carlos Prestes; Judacewski,Priscila; Coelho,Gabriel; Salem,Renata Dinnies Santos; Marinho,Marina Tolentino; Alberti,Aline; Zielinski,Acácio Antonio Ferreira; Demiate,Ivo Mottin; Nogueira,Alessandro.
ABSTRACT: There are no specific technical regulations regarding the identity and quality of white mold surface-ripened cheeses in Brazil. These cheeses are sold both whole (Camembert-type) and in wedges (Brie-type). The aim of the study was to evaluate the physical and chemical properties; technological parameters and microbiological safety of 20 whole cheeses (Camembert-type) and 16 cheese wedges (Brie-type) produced in Brazil. Samples showed a wide range in sodium (91.0-731.0 mg/100 g, cheeses wedges) and calcium (238.0-1100.0 mg/100g, whole cheeses) contents. The cheese groups presented no significant differences in relation to the majority of the analyzed parameters. Listeria monocytogenes was reported in 5% of the whole cheese samples. The other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cheese quality; Chemometrics; Camembert-type cheese; Brie-type cheese.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100752

An evaluation of the economic viability of environmental offsets in the saltworks industry
Provedor de dados: 65
Autores: Fernandes,Rogério Taygra Vasconcelos; Pinto,Aruza Rayana Morais; Fernandes,Raimunda Thyciana Vasconcelos; Oliveira,Jônnata Fernandes de; Novaes,José Luís Costa.
ABSTRACT: The extraction of sea salt depends on the occupation of large areas at the estuary banks, many of them inserted in Permanent Preservation Areas (PPAs). Thus, the objective was to evaluate the economic viability of Environmental Offsets (EO) as an alternative to the unoccupied PPAs in the saltworks. In order to do so, 27 solar saltworks installed in the region of the Brazilian White Coast were evaluated for the occupation of PPAs - measured using images from satellite, georeferenced, vectored with corresponding PPA bands generated - and estimated to EO (Impact Degree x Sum of the investments necessary to implement the project) and Economic Impact (Net Present Value, with long-term interest rate of 7%) of vacating PPAs. It was considered that EO...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Economic impact; Environmental impacts; Ecosystem services; Mangroves; Permanent preservation areas.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500401

Acute renal failure in a horse following bee sting toxicity
Provedor de dados: 65
Autores: Ribeiro,Paula Reis; Bianchi,Matheus Viezzer; Henker,Luan Cleber; Gonzales,Fernando; Pavarini,Saulo Petinatti.
ABSTRACT: Bee envenomation is frequent in humans and dogs, but uncommon in horses. This study aimed to describe a case of acute renal failure following mass envenomation in a horse. A mare was attacked by a swarm of bees and showed reluctance to move, epistaxis, and dark-brown urine. Biochemical exams revealed increase in urea and creatine serum levels. The mare did not respond to treatment and euthanasia was elected after four days of clinical course. At the necropsy, there were multifocal pinpoint to elevated skin lesions associated with edema and hemorrhage, which extended to the subcutaneous tissue and skeletal muscle, and the kidneys were diffusely dark-brown and friable. Microscopically, renal tubules were distended and filled with an orange-red,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acute renal failure envenomation; Pathology; Veterinary toxicology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500551

Chlorophyll content for millet leaf using hyperspectral imaging and an attention-convolutional neural network
Provedor de dados: 65
Autores: Xiaoyan,Wang; Zhiwei,Li; Wenjun,Wang; Jiawei,Wang.
ABSTRACT: Chlorophyll is a major factor affecting photosynthesis; and consequently, crop growth and yield. In this study, we devised a chlorophyll-content detection model for millet leaves in different stages of growth based on hyperspectral data. The hyperspectral images of millet leaves were obtained under a wavelength range of 380-1000 nm using a hyperspectral imager. Threshold segmentation was performed with near-infrared (NIR) reflectance and normalized difference vegetation index (NDVI) to intelligently acquire the regions of interest (ROI). Furthermore, raw spectral data were preprocessed using multivariate scatter correction (MSC). A correlation coefficient-successive projections algorithm (CC-SPA) was used to extract the characteristic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorophyll content; Multi-characteristic parameters fusion; Attention-CNN; Hyperspectral imaging technology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300205

Carcinoid of the gallbladder in two dogs
Provedor de dados: 65
Autores: Argenta,Fernando Froner; Pereira,Paula Reis; Bertolini,Marianna; Fratini,Letícia Mendes; Saccaro,Renata de Oliveira; Sonne,Luciana; Driemeier,David; Pavarini,Saulo Petinatti.
ABSTRACT: A carcinoid is a rare neoplasm derived from neuroendocrine cells that may arise in the hepatobiliary system. This report described two cases of carcinoid of the gallbladder in dogs, with emphasis on the clinical, pathological and immunohistochemical aspects. Case 1 was a 10-year-old female Shih Tzu, with a history of prostration and occasional episodes of diarrhea and vomiting. Case 2 was a 10-year-old male Cocker Spaniel, with a history of diarrhea and abdominal pain. Abdominal ultrasonography suggested a neoplasm of the gallbladder in both cases. The dogs underwent cholecystectomy, and 10% formalin-fixed samples were sent for pathological examination. Histologically, a neoplastic proliferation of neuroendocrine cells was observed in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Neoplasm; Neuroendocrine carcinoma; Immunohistochemistry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200551

Mycorrhization and saline stress response in Hyptis suaveolens
Provedor de dados: 65
Autores: Souza,Marília Cristina Gomes de; Morais,Marciana Bizerra de; Andrade,Marcelo da Silva; Vasconcelos,Mayron Alves de; Sampaio,Silvana Saker; Albuquerque,Cynthia Cavalcanti de.
ABSTRACT: The objective of this study was to evaluate the physiological and biochemical mechanisms of adaptation of Hyptis suaveolens under osmotic stress due to salinity inoculations with a mycorrhizal fungal species. H. suaveolens seeds were germinated in polyethylene pots containing a substrate associated with or without arbuscular mycorrhizal fungi (AMF). After plant formation, treatments were treated with different salt concentrations (0.0, 35, 70, and 105 mM) and fungi (control and two types of AMF), totaling 12 treatments with three replicates. The experimental design used randomized blocks in a 4 x 3 factorial scheme, totaling 12 treatments with three replicates each. Salinity affected all measured physiological and biochemical variables, and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant activity; Abiotic stress; Salinity; Arbuscular mycorrhizal fungi.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600402

Citral as food additive for common snook - zootechnical parameters and digestive enzymes
Provedor de dados: 65
Autores: Michelotti,Bruna Tomazetti; Mori,Natacha Cossettin; Magnotti,Caio Cesar Franca; Heinzmann,Berta Maria; Almeida,Ana Paula Gottlieb; Cerqueira,Vinicius Ronzani; Baldisserotto,Bernardo.
ABSTRACT: Essential oils of plants whose main compound is citral showed beneficial effects when added to fish feed. The objective of the present study was to evaluate the dietary effect of the addition of citral on zootechnical parameters and digestive enzyme activities of Centropomus undecimalis. Juveniles were fed for 45 days with diets containing different amounts of citral (0.0 - control, 0.5, 1.0, and 2.0 mL per kg of diet). The water quality parameters were kept stable during the experiment and no mortality was observed. At the end of the experimental period, the treatment 0.5 mL citral per kg of diet had the lowest weight gain and specific growth rate, and the highest feed conversion, while the same parameters did not differ between the other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Centropomus undecimalis; Amylase; Pepsin; Lipase; Growth; Marine fish farming.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400651

Livelihood capitals on income inequality among rural households: evidence from China
Provedor de dados: 65
Autores: Yang,Fan; Jiang,Yao; Zeng,Weizhong.
ABSTRACT: We used the data of the China Labor-force Dynamics Survey 2014 to examine the effects of livelihood capitals which include natural, material, human, financial, and social capitals on total household income, per capita income, agricultural income, wage income, operational income, and property income inequality among rural households in China. Results showed that different kinds of livelihood capitals have different effects on different types of rural households’ income. Specifically; (1) although, the area of cultivated land reduces agricultural income inequality, it increases per capita income inequality. (2) Forest land area enlarges per capita income inequality and total household income inequality. (3) Tractor variable reduces inequality in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Human capital; Social capital; Gini coefficient; Poverty alleviation; China.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200932

Agro-industrial wastes as sources of bioactive compounds for food and fermentation industries
Provedor de dados: 65
Autores: Shirahigue,Ligianne Din; Ceccato-Antonini,Sandra Regina.
ABSTRACT: Agro-industrial wastes are of great interest because they are important natural sources of bioactive compounds and can generate value-added byproducts. Recent studies have shown that byproducts generated by the food processing industry are rich in bioactive compounds, such as phenolic compounds, organic acids, and carotenoids, among others. The growing interest in replacing synthetic antioxidant and antimicrobial compounds with natural ones has stimulated a search for these bioactive compounds from plant sources, especially from fruit-processing wastes. The study aims to project the agro-industrial wastes as potential natural sources of antioxidants and antimicrobials and the feasible technological applications in food and fermentation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenolic compounds; Antioxidant activity; Antimicrobial activity; Agro-industrial waste.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400754

Canine ovarian dysgerminoma
Provedor de dados: 65
Autores: Podestá,Florencia Sollier; Caquias,Daniela Izquierdo.
ABSTRACT:  This research aimed to describe a clinical case of ovarian dysgerminoma in a bitch, by showing clinical, ultrasound, surgical and pathological findings. The research also sought to emphasize the importance of establishing an early and definitive diagnosis through histopathology, establishing appropriate protocols for each patient. Ovarian tumors have a low incidence in dogs and cats. Dysgerminomas are a type of ovarian germ cell tumor. They develop in dogs of variable age, that may present clinical signs of hormonal imbalance such as persistent estrus, or pyometra. Prognosis is good in animals that undergo surgery and show no evidence of metastasis. This article presents a clinical case of a 6-year-old English Bulldog with persistent estrus for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovarian neoplasia; Dysgerminoma; Canine tumor.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100601

The impact of agriculture trade and exchange rate on economic growth of Pakistan: an NARDL and asymmetric analysis approach
Provedor de dados: 65
Autores: Ali,Imad; Khan,Imran; Ali,Hashmat; Baz,Khan; Zhang,Qiangqiang; Khan,Ajab; Huo,Xuexi.
ABSTRACT: This study contributes to the extant literature on the nexus among agriculture export, import exchange rate and economic growth in Pakistan. We used annual time series data for 1980-2017 and employ the Non-linear Autoregressive Distributed Lag (NARDL) model. The NARDL testing results affirms asymmetric co-integration among the variables. The study main results show: (i) Co-integration test for long run the positive shocks in export and import have positive significant while exchange rate has positive effect the economic growth. (ii) Co-integration test for short run the positive shocks in import has positive significant and while Export and exchange rate have negative significant effect on economic growth. The symmetrical results show: (i) Export...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Economic growth; Agricultural export products; Agricultural import products and exchange rate; NARDL; Asymmetric relationship; Pakistan.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400931

Different times to perform timed artificial insemination when using a P4/E2/eCG-based protocol in buffalo
Provedor de dados: 65
Autores: Carvalho,Nelcio Antonio Tonizza de; Carvalho,Júlia Gleyci Soares de; Sales,José Nélio de Sousa; Macari,Rodrigo Caron; Baruselli,Pietro Sampaio.
ABSTRACT: The aim of this study was to evaluate different times for timed artificial insemination (TAI) in buffalo submitted to a P4/E2/eCG-based protocol. In this study, 204 buffaloes were distributed into one of two groups (TAI56, n=103 and TAI64, n=101). At a random stage of the oestrous cycle (Day 0 = D0), in the morning (TAI56, a.m.) or afternoon (TAI64, p.m.), buffaloes received an intravaginal progesterone device (P4; 1.0 g) plus EB (2.0 mg i.m.). On D9 a.m. (TAI56) or p.m. (TAI64), the P4 was removed and buffaloes received PGF2a (0.53 mg i.m. sodium cloprostenol) and eCG (400 IU i.m.). On D10 a.m. (TAI56) or p.m. (TAI64), 24 h after P4 removal, buffaloes were treated with EB (1.0 mg i.m.). Buffaloes from TAI56 and TAI64 were inseminated 56 and 64 h...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anoestrous; Artificial insemination; Oestradiol benzoate; Follicle; Induction of ovulation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400701

Pomegranate (Punica granatum L.) peel lyophilized extract delays lipid oxidation in tuscan sausages
Provedor de dados: 65
Autores: Zago,Gilberto Rogério; Gottardo,Franciele Maria; Bilibio,Denise; Freitas,Carla Patrícia; Bertol,Charise Dallazem; Dickel,Elci Lotar; Santos,Luciana Ruschel dos.
ABSTRACT: Pomegranate (Punica granatum L.) contains a high concentration of antioxidant and phenolic compounds. Pomegranate peel extracts at different concentrations were used as natural antioxidant to increased the lipid stability of fresh Tuscan sausages, comparing with sodium erythorbate (SE). Peels were subjected to ultrasound-assisted aqueous extraction and lyophilization. The extract was previously characterized throught phenol and flavonoids determination. The Tuscan Sausages were prepared, and color, pH, peroxides, and thiobarbituric acid reactive substances were assessed at 1, 15, and 30 days of storage, at a mean temperature of 5 ± 1 ºC and under a 12-hour light cycle/day. Sausages containing 0.05 and 0.1% of peel extract showed results similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meat product; Lipid; Oxidation; Storage; Sensory analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400753

Economic analysis of the risk of replacing corn grains (Zea mays) with pearl millet grains (Pennisetum glaucum) in the diet of feedlot cattle
Provedor de dados: 65
Autores: Silva,Rodrigo Medeiros da; Taveira,Rodrigo Zaiden; Restle,João; Fabricio,Edom de Avila; Camera,Angelina; Maysonnave,Greicy Sofia; Bilego,Ubirajara Oliveira; Pacheco,Paulo Santana; Vaz,Fabiano Nunes.
ABSTRACT: The goal of the present study was to assess the economic viability relating to the risk of replacing corn with pearl millet in diets with 80% concentration for feedlot cattle confined for 89 days. Replacement levels were: 0, 33, 66, and 100%. The risk was estimated using Monte Carlo simulation, Spearman’s rank correlation test between input variables, stochastic dominance, and analysis of sensitivity. The expected average values ± standard deviation for net present value (R$/animal) were ± 71.74 ± 283.32, 91.23 ± 285.18, 196.05 ± 273.79, and 223.80 ± 267.96 for diets containing 0, 33, 66, and 100% of pearl millet, respectively. The probability of ≥0 net present value was 63.4, 66.1, 78.4, and 82.4%, respectively. The net present values were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Investment analysis; Probabilistic analysis; Stochastic method; Correlation of classification.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300651

Prediction of soil organic matter and clay contents by near-infrared spectroscopy - NIRS
Provedor de dados: 65
Autores: Lazzaretti,Bruno Pedro; Silva,Leandro Souza da; Drescher,Gerson Laerson; Dotto,André Carnieletto; Britzke,Darines; Nörnberg,José Laerte.
ABSTRACT: Among the soil constituents, special attention is given to soil organic matter (SOM) and clay contents, since, among other aspects, they are key factors to nutrient retention and soil aggregates formation, which directly affect the crop production potential. The methods commonly used for the quantification of these constituents have some disadvantages, such as the use of chemical reactants and waste generation. An alternative to these methods is the near-infrared spectroscopy (NIRS) technique. The aim of this research is to evaluate models for SOM and clay quantification in soil samples using spectral data by NIRS. A set (n = 400) of soil samples previously analyzed by traditional methods were used to generate a NIRS calibration curve. The clay...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calibration; Validation; Mathematical models; Spectral pretreatment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100251

Standard area diagram set for scab quantification in trilobed leaves of the sour passion fruit
Provedor de dados: 65
Autores: Costa,Anne Pinheiro; Peixoto,José Ricardo; Blum,Luiz Eduardo Bassay; Oliveira,Alexandre Bosco de.
ABSTRACT: The study aimed to develop and validate a standard area diagram set (SADs) to improve accuracy, precision, and reproducibility in the assessment of scab severity in trilobed leaves of the sour passion fruit. The SADs comprised six severity levels (1%; 3%; 6%; 11%; 21%; and 33%). The SADs increased the accuracy of the estimates by reducing the constant and systematic errors, and the tendency to overestimate the actual severity, limited the number of evaluators who presented this trend, in addition to increasing the bias correction factor. The inexperienced evaluators were the ones that benefited the most from the SADs use. Once the SADs was introduced, 80% and 100% evaluators gave estimates free from constant and systematic errors, respectively....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passiflora edulis Sims; Cladosporium spp.; Phytopathometry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300151

Cattle loading rates in different truck models and their relationship with bruises on bovine carcasses
Provedor de dados: 65
Autores: Ferreira,Kethylleen de Carvalho; Furtado,Aline Correia; Flores,Hugo Pereira; Oliveira,Pollyanna Ricartes de Oliveira de; Gonçalves,Augusto Galhardo; Oliveira,Dalton Mendes de.
ABSTRACT: This study sought to evaluate the number of bruises on bovine carcasses and their relationship with loading rates in different truck models. Bruising percentages in the hindquarter, forequarter and short rib regions were evaluated. The space occupied on the truck by each animal in m² was defined as the Practiced area, obtained by dividing the body area by the number of males and females transported in straight trucks (10.60 x 2.40 m) and livestock trailers (14.80 x 2.60 m), 240 and 168, and 120 and 93, respectively, and 80 males in a straight truck with trailer configuration (17.50 x 2.60 m). The minimum area occupied by the animals was assessed according to the Farm Animal Welfare Council (FAWC) and Animal Welfare Advisory Committee (AWAC). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal welfare; Loading density; Pre-slaughter handling; Road transport.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500651

Congenital hepatic fibrosis associated with ascites in a nellore calf
Provedor de dados: 65
Autores: Gois,Daniela Dantas de; Sousa,Isabelle Vieira de; Barbosa,Francisca Maria Sousa; Silva Neto,José Ferreira da; Sampaio,Rubia Avlade Guedes; Simões,Sara Vilar Dantas; Dantas,Igor Mariz; Lucena,Ricardo Barbosa.
ABSTRACT: Congenital hepatic fibrosis (CHF) is an autosomal recessive malformation characterized by a variable degree of fibrosis and bile duct proliferation, mainly described in people and rarely reported in bovine European breeds. In addition to liver fibrosis, this syndrome has been associated with ascites and subcutaneous edema in calves. This paper described the pathological findings of the first report of CHF in a Nelore bovine fetus. A stillborn calf was removed by cesarean section because of dystocia. At necropsy, characteristic changes of CHF were observed, such as a large increase in abdominal volume associated with hepatic fibrosis and marked subcutaneous edema. Histological examination of liver revealed periportal and port-portal islands of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bos primigenius indicus; Genetic factors; Malformation; Perinatal mortality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500552

Antibiotic resistance and virulence factors among Escherichia coli isolates from avian organic fertilizer
Provedor de dados: 65
Autores: Agostinho,Juliana Maria Avanci; Cardozo,Marita Vedovelli; Borzi,Mariana Monezi; Marin,José Moacir.
ABSTRACT: Brazilian poultry industry generates large amounts of organic waste, such as chicken litter, which is often used in agriculture. Among the bacteria present in organic fertilizer are members of the Enterobacteriaceae family, such as Escherichia coli. The aim of this study was to analyze the profile of virulence factors and antimicrobial resistance of E. coli isolates from avian organic fertilizer. A total of 47 E. coli strains were tested through Polymerase chain reaction to detect virulence genes (hlyF, iss, ompT, iutA and iroN). Fourteen antimicrobials were used to test antimicrobial susceptibility in the strains. Genes characteristic of Avian Pathogenic E. coli (APEC) were reported among the strains, with the hlyF, iss and ompT genes being the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Poultry production; Enterobacteriacea; Zoonotic risk; Virulence factors.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200451

Adjusting the growth curve of sugarcane varieties using nonlinear models
Provedor de dados: 65
Autores: Jane,Sérgio Alberto; Fernandes,Felipe Augusto; Silva,Edilson Marcelino; Muniz,Joel Augusto; Fernandes,Tales Jesus; Pimentel,Guilherme Vieira.
ABSTRACT: Assessing sugarcane (Saccharum spp.) stalk growth helps to adequately manage the phenological stages of the crop. The aim of this study was to describe the height-growth curve of four sugarcane varieties (RB92579, RB93509, RB931530 and SP79-1011), in irrigated plant-cane and ratoon cane plantations, using the Logistic and Gompertz nonlinear models, while considering all deviations from assumptions. The model parameters were estimated based on the least squares method using the Gauss-Newton algorithm. To select the most suitable model, nonlinear measures, adjusted coefficient of determination (R2 adj), residual standard deviation (RSD), and corrected Akaike information criterion (AICc) were used. Based on the best models, stalk height growth rates...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Logistic model; Gompertz model; Growth rates.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300204

Corn supplementation on milk urea nitrogen content of dairy cows grazing on temperate annual pasture
Provedor de dados: 65
Autores: Dall-Orsoletta,Aline Cristina; Almeida,João Gabriel Rossini; Oziemblowski,Márcia Maria; Ribeiro-Filho,Henrique Mendonça Nunes.
ABSTRACT: The excretion of urinary nitrogen (N), one of the most important environmental contaminants from livestock systems, is highly correlated with milk urea N content. The objective of this research was to evaluate the use of different types of corn supplementation on milk urea N in grazing dairy cows. Twelve Holstein × Jersey lactating dairy cows were divided into six uniform groups according to milk production, lactation stage and live weight. Treatments were compared according to a 3 × 3 replicated Latin square experimental design, with three periods of seventeen days (twelve days to adaptation and five to measurements). The experimental treatments were exclusively grazing (G); grazing + supplementation with 4.2 kg DM of corn silage (CS) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen excretion; Ground corn; Corn silage; Grazing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200650

Agronomic and biochemical evaluation of cassava clones with roots that have pink pulp
Provedor de dados: 65
Autores: Fuhrmann,Elisiane; Vieira,Eduardo Alano; Fialho,Josefino de Freitas; Faleiro,Fábio Gelape; Malaquias,Juaci Vitoria; Carvalho,Luiz Joaquim Castelo Branco.
ABSTRACT:  Sweet cassava breeding programs are focused on the development of bio fortified cultivars that combine significant amounts of carotenoids in their reserve roots with desirable agronomic. The objective of this research was to evaluate agronomic and biochemical traits in sweet cassava clones with roots that have pink pulp. The nine genotypes were evaluated in two seasons in a randomized block design with three replications. Among the evaluated clones, the following stood out: i) for the height of the first branch (390/08, 345/08 and the control IAC 576-70); ii) for plant height (390/08, 345/08 e 378/08); iii) for shoot weight without original steam cutting (390/08, 406/08, 378/08 e 341/08); iv) for the percentage of starch in roots (378/08,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manihot esculenta Crantz; Breeding; Genetic resources; Lycopene.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100201

Fatal asphyxia due to laryngeal displacement by large-sized prey in a Guiana dolphin (Sotalia guianensis), Brazil
Provedor de dados: 65
Autores: Mariani,Daniela Bueno; Guimarães,Juliana Plácido; Batista,Renata Guedes; Brum,Andrei; Groch,Kátia Regina; Díaz-Delgado,Josué; Parente,Jociery Einhardt Vergara.
ABSTRACT: The Guiana dolphin (Sotalia guianensis) is a small odontocete distributed from Santa Catarina state, Brazil, to Honduras. Although it is currently considered “near threatened” by the International Union for Conservation of Nature, considerable knowledge on health and disease aspects of this species has been gained over the last decade. The main threats for the species are represented by multiple anthropic factors. Guiana dolphins feed on a variety of taxa, primarily teleosts, crustaceans, and cephalopods. Herein, we reported a case of severe laryngeal displacement and esophageal impaction with ulceration associated with a deglutted adult leatherjacket (Oligoplites sp.). This fish species is not a common prey item of Guiana dolphins’ diet. Severe...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Deglutition; Larynx; Cetacean; Pathology; Predator-prey interaction; Impaction; Esophageal ulcer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200550

Effects of one haustorium-inducing quinone DMBQ on growth and development of root hemiparasitic plant Monochasma savatieri
Provedor de dados: 65
Autores: Chen,Lanlan; Zhu,Zaibiao; Guo,Qiaosheng; Guo,Jun; Huang,Zhigang; Shi,Yongtao; Wen,Zhencui.
ABSTRACT: Monochasma savatieri Franch. ex Maxim is a perennial, parasitic herb used in traditional Chinese medicine and its wild resources have decreased sharply in recent years due to destructively harvesting and habitat destruction. Haustorium formation is a key event of parasites, but the concentrations of haustorium-inducing factors vary with species and cultivation conditions. In this study, we investigated the effects of the 2,6-dimethoxy-p-benzoquinone (DMBQ) concentration and cultivation density on the growth traits, haustorium formation and biomass of M. savatieri in the absence of a host plant. The results showed that both the DMBQ concentration and cultivation density regulated growth traits, haustorium formation and biomass in M. savatieri. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial cultivation; Density; DMBQ; Fuzzy membership function; Growth promotion.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300202

Testers in supersweet corn lines
Provedor de dados: 65
Autores: Nihei,Thiago Hideyo; Bertagna,Filipe Augusto Bengosi; Kuki,Maurício Carlos; Scapim,Carlos Alberto; Pinto,Ronald José Barth; Amaral Júnior,Antônio Teixeira do.
ABSTRACT: The purpose of this study was to evaluate the discriminatory capacity of tester lines for tropical corn lines converted to supersweet shrunken (sh2) gene, for the development of hybrids adapted to tropical conditions. Lines were used as female parents in crosses with three testers: open-pollinated mixed variety; supersweet line L4; supersweet commercial hybrid Tropical Plus. Four trials were carried out to evaluate topcrosses in Maringá - PR e Sabáudia - PR, Brazil in the main growing season of 2015/16. The following traits were evaluated: total ear weight (TEW, in kg), commercial ear weight (CEW, in kg) and total soluble solids (TSS, in °Brix). The GCA estimates for TEW and CEW were highest for L4. The lines Balu-114 and UEM-25 were selected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diallel analysis; General and specific combining ability topcross; Sweet corn; Tester.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300402

Partial tear of the long digital extensor tendon in a dog
Provedor de dados: 65
Autores: Mistieri,Maria Ligia de Arruda; Gomes,Etiele Maldonado; Santos,Endreo Alan Pail dos; Cruz,Igor Cezar Kniphoff da.
ABSTRACT: The aim of this paper was to describe the clinical and sonographic findings of partial tear at the musculotendinous junction of the proximal long digital extensor tendon during the acute phase and one year after initial presentation. The dog presented with acute, moderate weight-bearing lameness of the right hind limb. During an orthopedic examination of the stifle, the dog expressed pain on extension and flexion of the right knee. Under general anesthesia, no instability was evident. Radiographic images suggested the presence of joint effusion in the right stifle. Ultrasonography revealed that the long digital extensor tendon was hyperechoic, surrounded by an anechoic effusion, and the muscle fibers were disorganized and interspersed with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musculotendinous junction; Ultrasound; Tendon injury.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300601

Conidia sporulation of Pyricularia oryzae in segments of wheat plants under six different temperatures
Provedor de dados: 65
Autores: Kovaleski,Marcos; Maciel,João Leodato Nunes; Santos,Gustavo Bilibio dos; Silva,Alieze Nascimento da; Deuner,Carolina Cardoso.
ABSTRACT: Wheat blast is known for developing itself more intensely under relatively high temperature conditions but many aspects related to its epidemiology remain unknown. The objective of this research was to evaluate the sporulative capacity of Pyricularia oryzae Triticum (Pot), the causal agent of wheat blast, in tissues of wheat plants under different temperatures degrees. Wheat plants of the cultivar Anahuac 75, susceptible to blast, were inoculated in the stage of flowering with conidial suspensions (105 conidia/mL) of the Pot isolates Py 12.1.209 and Py 12.1.132. Seven days after the inoculation, plants were cut in the following segments: leaves, stems and rachis (with blast severity ranging from 40 to 60%). Groups of each one of the three plant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wheat blast; Conidial production; Severity; Sporulative lesions.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400151

THE PERFORMANCE OF EXPLICIT FORMULAS FOR DETERMINING THE DARCY-WEISBACH FRICTION FACTOR
Provedor de dados: 70
Autores: Minhoni,Renata T. de A.; Pereira,Francisca F. S.; Silva,Tatiane B. G. da; Castro,Evanize R.; Saad,João C. C.
ABSTRACT The Darcy-Weisbach equation is the most recommended equation for determining the pressure loss in pressurized pipes because of its wide applicability. However, one of the largest obstacles to implementing this equation is the friction factor (f) calculation. This factor can be precisely determined using the Colebrook equation, which is implicit. Thus, the objective of this study was to compare six explicit equations for calculating the Darcy-Weisbach friction factor with the implicit Colebrook equation based on the relative error. Based on the results, the equations of Vatankhah and Offor &amp; Alabi were the most highly recommended. These six explicit formulas showed a mean relative error of less than ± 1% compared to the Colebrook equation,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Absolute roughness; Colebrook equation; Forced conduits; Head loss; Hydraulic load; Reynolds number.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200258

A DISCRETE STOCHASTIC MODEL TO DETERMINE FOOD QUALITY BY USING SIMULATION: A STRAWBERRY CASE STUDY
Provedor de dados: 70
Autores: González-Hernández,Isidro J.; Granillo-Macías,Rafael; Rondero-Guerrero,Carlos; Martínez-Flores,José L.
ABSTRACT The agri-food supply chain (AFSC) sets a series of challenges in the production, storage, distribution, and transportation processes, as the market's requirements for fresh food combine food quality and safety attributes. This research suggests a discrete event modeling to study the behavior of food quality in all supply chains (SCs) in terms of temperature and time variables in a stochastic manner. The ProModel software was used to simulate strawberry quality in the SC, considering a distribution route to export the fruit from Mexico to the United States. The suggested model together with a computer simulation analyzes the fruit quality from two perspectives: with and without a cold chain (CC). The obtained results revealed that in the case of CC...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agri-food supply chain; Discrete and stochastic model; Food quality; Simulation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600747

INFLUENCE OF GLYPHOSATE CONCENTRATIONS ON SPRAY SOLUTION PHYSICOCHEMICAL CHARACTERISTICS AND DRIFT POTENTIAL
Provedor de dados: 70
Autores: Almeida,Dieimisson P.; Ferreira,Marcelo da C.; Santos,Renata T. da S.; Griesang,Fabiano; Santos,Eduardo de S. dos; Timossi,Paulo C.
ABSTRACT The herbicide glyphosate is sprayed with varying application volumes that result in different concentrations used in the spray solutions. Thus, this study aimed to evaluate the effect of glyphosate concentrations on the potential risk of droplet drift, surface tension of spray solution, and contact angle of droplets on surfaces. Three experiments were conducted in a completely randomized design. Drift potential was evaluated by median volumetric diameter (MVD), percentage volume of droplets with diameter smaller than 100 μm (%V&lt;100 μm), and coefficient of uniformity (Span), with 12 replications. The surface tension of spray solutions and contact angle of droplets were evaluated on Urochloa ruziziensis leaves, paraffin film, and glass, with four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Surface tension; Contact angle; Droplets; MVD; Congo grass.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100069

SOYBEAN AGRONOMIC PERFORMANCE AND SOIL PHYSICAL ATTRIBUTES UNDER TRACTOR TRAFFIC INTENSITIES
Provedor de dados: 70
Autores: Arcoverde,Sálvio N. S.; Souza,Cristiano M. A. de; Rafull,Leidy Z. L.; Cortez,Jorge W.; Orlando,Roberto C.
ABSTRACT Machinery traffic intensification has been recurrent in intensive agriculture in annual crops, which may lead to structural soil degradation and, consequently, a reduction of its productive capacity. Therefore, this study aimed to assess the influence of tractor traffic intensification on soil physical attributes and soybean yield components. The study was performed in an Oxisol under no-tillage for 10 years, using a randomized block design with five tractor traffic intensities (0, 2, 4, 6, 8, and 12 passes) and five replications. Density, porosity, macroporosity, microporosity, and penetration resistance were assessed in the soil and stem diameter, number of pods per plant, number of grains per pod, grain weight per plant, thousand-grain weight,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil compaction; Yield components; Shoot; Soil penetration resistance; Machinery traffic.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100113

MATHEMATICAL MODELING FOR DETERMINATION OF THE MAXIMUM MASS TRANSFER CAPACITY OF COWPEA BEANS
Provedor de dados: 70
Autores: Franco Junior,Hélio C.; Morais,Romulo A.; Silva,Warley G. da; Oliveira,Maria O. S.; Martins,Glêndara A. de S.
ABSTRACT Cowpea beans are of great socioeconomic expression for the rural population in North and Northeastern Brazil. This legume is rich in essential nutrients and exhibits great resistance to water stress. However, for grain processing, it is fundamental to study legume behavior during the hydration process. This study aims to evaluate the mass transfer of different cowpea beans via mathematical modeling to determine the viability of hydration for commercialization as a canned product. Physical and chemical analyses of lipids and moisture were performed. The soaking process was performed in a water bath with distilled water at 30, 40, and 50 °C. The mathematical model of Peleg presented satisfactory adjustments, with R2 values ranging between 99.78% and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leguminous; Peleg model; Hydration; Beans.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200201

THE SUCCESS OF THE BRAZILIAN ALCOHOL PROGRAM (PROÁLCOOL) - A DECADE-BY-DECADE BRIEF HISTORY OF ETHANOL IN BRAZIL
Provedor de dados: 70
Autores: Stolf,Rubismar; Oliveira,Ana Paula Rodrigues de.
ABSTRACT The National Alcohol Program (Proálcool) was a strategic policy of the Brazilian government to replace petroleum-based fuels with alcohol (ethanol). Based on the review, we can choose the 1960s as a start point for a leap in development. Over the 500 years of sugarcane history in Brazil, the crop enters the second decade of the 21st century with extraordinary strength and prestige, reaching its highest production in history. This made Brazil a leader in sugar and ethanol productions worldwide, with an energy-independent agribusiness. Moreover, effluents and polluting wastes were transformed into high-value inputs (e.g., vinasse, filter cake, and others). Environmentally friendly actions included developing organic cane production technology,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Strategies; Development; Agribusiness; World leadership.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200243

OPERATIONAL AND ENERGY PERFORMANCE OF 250 kW DOUBLE WHEELED VERSUS RUBBER HALF-TRACKED TRACTORS IN THE SOYBEAN SOWING
Provedor de dados: 70
Autores: Neto,Lauro S.; Kmiecik,Leonardo L.; Jasper,Samir P.; Zimmermann,Gabriel G.; Savi,Daniel.
ABSTRACT The technological innovation in agriculture seeks to improve the performance of mechanized assemblies and, currently, rubber half-tracks are a valuable solution for agricultural tractors, combining traction performance and less soil compaction. The objective of the experiment was to evaluate the operational and energy performance of double wheeled versus rubber half-tracked agricultural tractors in the soybean sowing. The experiment was conducted in a strip-plot design with a double factorial arrangement (2×3). The first factor consisted of a tractor with double wheels on the front and rear axles versus a tractor with single wheels on the front axle and rubber half-tracks on the rear axle, while the second factor consisted of three different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Slippage; Operating speed; Hourly fuel consumption.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500617

PREDICTING THE PERFORMANCE PARAMETERS OF CHISEL PLOW USING NEURAL NETWORK MODEL
Provedor de dados: 70
Autores: Marey,Samy; Aboukarima,Abdulwahed; Almajhadi,Yousef.
ABSTRACT This study examines the capability of an artificial neural network (ANN) approach using a backpropagation-learning algorithm to predict performance parameters for a chisel plow at three field sites with differing soils. The draft force, effective field capacity (EFC), fuel consumption rate (FC), overall energy efficiency (OEE), and rate of plowed soil volume (SVR) were predicted at varying plowing speeds, plowing depths, soil moisture contents, soil bulk densities, soil texture indexes, and tractor powers. Collected field data was divided into a training set (for predicting the required parameters) and testing set (for model validation). For the ANN algorithm, the number of hidden layers, neurons, and transfer functions were varied to construct...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Backpropagation-learning algorithm; Draft; Fuel consumption; Overall energy efficiency.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600719

CLASSIFICATION OF ROBUSTA COFFEE FRUITS AT DIFFERENT MATURATION STAGES USING COLORIMETRIC CHARACTERISTICS
Provedor de dados: 70
Autores: Costa,Anderson G.; Sousa,Daniela A. G. de; Paes,Juliana L.; Cunha,João P. B.; Oliveira,Marcus V. M. de.
ABSTRACT Coffee growers who produce the robusta species (Conilon) have sought to increase productivity and drink quality by improving production techniques. Artificial vision systems can assist in increasing the efficiency of operations associated with crop management. This study aimed to obtain colorimetric characteristics of robusta coffee fruits at different stages of maturity and use them for classifying fruits from digital images. A digital camera with spectral resolution in the visible was used to acquire images from 60 samples of coffee fruits at the green, cherry, and over-ripe stages of maturity. Colorimetric variables were extracted from the RGB, HIS, and L*a*b* color models and correlated with the physicochemical attributes of the fruits. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial vision systems; Coffea canephora; Principal component analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400518

BIOMECHANICAL PROPERTIES OF WOLFBERRY PLANT ORGANS
Provedor de dados: 70
Autores: Ma,Fulong; Li,Lekai; Wang,Yutan; Li,Ping; Zhu,Chaowei.
ABSTRACT To improve the picking rate and reduce the wrong picking rate of the existing wolfberry harvesting machinery, in this study, the binding force and physical appearance of the immature fruit stalk, mature fruit stalk, flower, and leaf were studied to guide the designing of new-generation wolfberry harvesting machinery and lay theoretical foundation for further studies on biomechanical properties of wolfberry. By preprocessing the experimental data with the Pauta criterion, the distribution range of the binding force and physical appearance of stalk were obtained; the binding force was not influenced by the picking temperature, mass of the fruit, and location of the branch of the fruit. The length-diameter ratio of mature fruit was confirmed by image...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Binding force; Biomechanical characteristics; Constitutive equation; Dynamic model; Vibrating wolfberry harvesting machinery.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200162

PHYSICAL ANALYSIS OF REGIONALIZED FLOW AS AN AID IN THE IDENTIFICATION OF HYDROLOGICALLY HOMOGENEOUS REGIONS
Provedor de dados: 70
Autores: Calegario,Arthur T.; Pruski,Fernando F.; Ribeiro,Rayssa B.; Ramos,Maria C. A.; Rego,Fernando S.
ABSTRACT Regionalization is an important technique for estimating the flow of hydrographic sections with a lack of data. First, it is necessary to identify hydrologically homogeneous regions (HHRs), which are commonly validated via statistical analyses. Because this step is understood to be subjective, studies that contribute to a greater reliability in identifying regions are needed. In this context, the objective was to evaluate the inclusion of a physical analysis of the average regionalized flow rates as an aid to identify HHRs. The groupings were defined on the basis of geographical convenience methods and cluster analysis. For the assessment of regionalized flows, six statistical indices were used with a physical analysis that was performed via a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Regionalization; Long-term average streamflow; Planning and management of water resources; Cluster analysis; Geographical convenience.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300334

QUALITY OF CAGAITA POWDER BY FOAM LAYER DRYING METHOD AND DIFFERENT FOAMER AGENTS
Provedor de dados: 70
Autores: Cavalcante,Maisa D.; Belisário,Celso M.; Oliveira,Daniel Emanuel C. de; Maia,Geisa Priscilla A. G.
ABSTRACT One of the factors that hinder the usability of Cerrado fruits is their perishable nature, requiring industrial processing to ensure prolonged shelf life. This study aims to determine the optimal foaming agent for industrial processing of this fruit, and to evaluate the physicochemical characteristics and antioxidant activity of dried cagaita powder (Eugenia dysenterica DC) in foam layers at temperatures of 40, 50, 60, and 70 °C. The effectiveness of three foaming agents at various concentrations were tested, and suitable agents were identified based on a factorial analysis of density, expansion, and stability. The physicochemical characteristics of the powder, along with its vitamin A and C and total carotenoid content and antioxidant activity,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado fruits; Cagaita powder; Bioactive compounds; Antioxidant activity; Vitamin C; Vitamin A; Carotenoids; Foam layer drying.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300381

APPLICABILITY OF THE SWAT HYDROLOGICAL MODEL IN THE MUCURI RIVER BASIN
Provedor de dados: 70
Autores: Almeida,Rafael A.; Pereira,Silvio B.; Pinto,Daniel B. F.; Rosa,David R. Q.
ABSTRACT Land-use changes promote significant variations in streamflow regimes, and hydrological models allow studying their impacts. Based on this approach, this study aimed to assess the applicability of the SWAT model for different land-use scenarios and their respective impacts on the flow regime of the Mucuri River. The average monthly and daily water balance was generated after the calibration and validation of the SWAT model in the basin. Three land-use scenarios were analyzed in relation to the current land use, as follows: replacement of the agricultural area by the eucalyptus crop, replacement of the native forest area by the sugarcane crop, and replacement of pasture by exposed soil. The results showed that the SWAT model is adequate to simulate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land use scenarios; Hydrological modeling; Streamflow.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500631

EVALUATION OF THE RADIOMETRIC ACCURACY OF IMAGES OBTAINED BY A SEQUOIA MULTISPECTRAL CAMERA
Provedor de dados: 70
Autores: Teixeira,Alison A. D.; Mendes Júnior,Cláudio W.; Bredemeier,Christian; Negreiros,Marcelo; Aquino,Robson dos S.
ABSTRACT Geometric and radiometric corrections of images obtained by remotely piloted aircraft systems (RPAS) are required for the measurement of the spectral reflectance and calculation of vegetation indices. This study aimed to determine which radiometric calibration procedures allow obtaining suborbital images with more accurate reflectance data and spectral indices based on data collected by a Sequoia multispectral camera coupled to a RPAS on black oat cultivations at the flowering stage located in Eldorado do Sul, RS, Brazil. The orthophoto mosaics were processed without and with radiometric corrections by reflectance calibration ground target and/or solar irradiance sensor of the camera, and the radiometric accuracy of these images was evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NDVI; NDRE; Sequoia camera; Radiometric correction.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600759

MODELING YIELD, SOIL WATER BALANCE, AND ECONOMIC RETURN OF SOYBEAN UNDER DIFFERENT WATER DEFICIT LEVELS
Provedor de dados: 70
Autores: Petry,Mirta T.; Basso,Laudenir J.; Carlesso,Reimar; Armoa,Maria S.; Henkes,Jonas R.
ABSTRACT Evaluating the impacts of water stress on crop yield allows comparing irrigation management alternatives, aiming to ensure an economic return for the irrigated farms. Thus, the main objectives of this study were to model the soil water balance, deriving the crop coefficients, grain yield prediction, and economic return of soybean grown at different levels of water deficit and price quotations. The experiment was carried out under a rainout shelter, using four irrigation water managements. Irrigations were applied when the soil available water in the root zone reached 75%, 64%, 60%, and 50% of the total available water (TAW). Crop and soil parameters were monitored throughout the crop season. The SIMDualKc model was used to simulate the soil water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Soil water balance; SIMDualKc model; Economic return.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400526

MORPHOGENIC AND STRUCTURAL CHARACTERISTICS OF MARANDU GRASS AFFECTED BY FERTIGATION WITH TREATED SEWAGE EFFLUENT AND CUTTING HEIGHT
Provedor de dados: 70
Autores: Dantas,Geffson de F.; Faria,Rogério T. de; Costa,Natã R.; Santos,Gilmar O.; Ferraudo,Antonio S.
ABSTRACT The response of biomass flow components of forage from the interaction between fertigation with wastewater and cutting height during the year is little known. The objective of this work was to verify the responses of morphogenic and structural characteristics of Urochloa brizantha as a function of fertigation application strategies with sewage treatment plant effluent (TSE), complemented with urea (U), associated with harvest with two plant heights during the dry and rainy periods. The forage cutting heights were 30 cm (H1) and 40 cm (H2), and nitrogen fertilization doses were 9.1 (D1), 12.1 (D2), 22.5 (D3), 26.6 (D4), and 34.0 (D5) kg of N per Mg−1 of dry matter (DM) produced, applied by TSE via fertigation, plus 7.5 kg N per Mg−1 of DM produced,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Defoliation; Nitrogen; Water reuse.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600692

MODELING OF DRAFT AND ENERGY REQUIREMENTS OF A MOLDBOARD PLOW USING ARTIFICIAL NEURAL NETWORKS BASED ON TWO NOVEL VARIABLES
Provedor de dados: 70
Autores: Al-Janobi,Abdulrahman; Al-Hamed,Saad; Aboukarima,Abdulwahed; Almajhadi,Yousef.
ABSTRACT Draft and energy requirements are the most important factors in the activities of farm machinery management owing to their role in matching the tractor with implements for different tillage operations. This study's aim was to model the draft and energy requirements of a moldboard plow based on two novel variables. The first was the soil texture index (STI), which was formed from the clay, sand, and silt contents with a range of 0.03–0.84. The second variable was the field working index (FWI), formed by combining the plow width, plowing speed, soil bulk density, soil moisture content, plowing depth, and tractor power into one dimensionless variable, which had a range of 7.17–82.45. The coefficient of determination (R2) values obtained using a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil texture index; Field working index; Artificial neural network; Prediction; Tillage.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300363

EFFECTS OF SOIL WATER AVAILABILITY AND ORGANIC MATTER CONTENT ON FRUIT YIELD AND SEED OIL CONTENT OF CASTOR BEAN1
Provedor de dados: 70
Autores: Lacerda,Rogério D. de; Almeida,Larissa C.; Guerra,Hugo O. C.; Silva,José E. B. da.
ABSTRACT The objective of this study was to assess the sensitivity of the castor bean cultivar “BRS 188 Paraguaçu” to available soil water for plants and soil organic matter content based on their effects on fruit yield and seed oil content. A 2 × 4 factorial experiment was conducted from October 2008 to March 2009 under field conditions using randomized complete block design; two soil organic matter contents (5.0 and 25.0 g·kg−1) and four available soil water levels for plants at the irrigation time (70, 80, 90, and 100% of the total available soil water) with three replicates were tested. On each experimental unit measuring 100 m2, 50 plants were cultivated with a spacing of 2 m × 1 m (24 useful and 26 border plants). Analysis of variance (F test) was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: “BRS 188 Paraguaçu”; Ricinus communis L.; Irrigation; Biodiesel.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600703

FITTINGS OF ADSORPTION ISOTHERM MODELS AND THERMODYNAMIC PROPERTIES OF URUNDAY SEEDS
Provedor de dados: 70
Autores: Isquierdo,Eder P.; Caldeira,Daniela S. A.; Siqueira,Valdiney C.; Martins,Elton A. S.; Quequeto,Wellytton D.
ABSTRACT This study aimed to obtain and evaluate thermodynamic properties and hygroscopic equilibrium isotherms of urunday seeds as a function of air relative humidity and temperature, as well as identify the best-fitted mathematical models for adsorption phenomenon. A static-gravimetric method was used to obtain hygroscopic equilibrium moisture content. Seeds were placed in airtight containers with different saturated saline solutions for relative humidity control. These were then kept in BOD incubator chambers at 10, 20, 30, and 40 °C. Hygroscopic equilibrium moisture content decreased as temperature increased, for the same water activity. The Sigma-Copace model best-fitted seed adsorption data for equilibrium water activity intervals between 0.1129 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water activity; Isokinetic; Sorption isotherms; Myracrodruon urundeuva; Relative humidity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300374

SIMULATING CROP YIELD, SOIL NITROGEN, AND ORGANIC CARBON IN NO-TILLAGE CROP SEQUENCES IN A SUBTROPICAL CLIMATE IN BRAZIL
Provedor de dados: 70
Autores: Silva,Bruna de O.; Santos,Gustavo A. de A.; Santos,Miquéias G. dos; Morais Filho,Luiz F. F.; Faria,Rogério T. de.
ABSTRACT Brazil stands out worldwide for its high grain production in areas of direct sowing. The objective of this study was to simulate and assess the relationship of soil organic carbon content and nitrogen, crop yield, and biomass of two crop sequences under the no-tillage system in a subtropical region of São Paulo, Brazil, using CSM-CROPGRO-Soybean and CSM-CERES-Maize models. The modeling was carried out considering the meteorological conditions of Jaboticabal, SP, Brazil. The treatments consisted of combining two summer crops (maize and soybean) with maize cultivation as a winter crop. The average biomass and productivity for corn were 15594 kg ha−1 and 5996 kg ha−1, respectively, and for soybeans they were 5905 kg ha−1 and 3441 kg ha−1,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CSM-CROPGRO; CSM-CERES-Maize; Conservationist tillage; Greenhouse gas emission.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400536

DEFICIT IRRIGATION OF SUBSURFACE DRIP-IRRIGATED GRAPE TOMATO
Provedor de dados: 70
Autores: Mendonça,Thaís G.; Silva,Marília B. da; Pires,Regina C. de M.; Souza,Claudinei F.
ABSTRACT Agriculture is one of the segments that most uses water and developments have been made to save irrigation water. Deficit irrigation is a technique that can contribute to production and water saving in agriculture. This study aimed to evaluate the viability of deficit irrigation in tomato production irrigated by subsurface drip in a greenhouse and estimate water saving. The experiment was conducted at the CCA/UFSCar, in Araras, São Paulo, Brazil, with grape tomato cultivation. It consisted of three treatments, 100 % water depth and deficit irrigation (75 and 50 % of water depth), with a randomized block design. Irrigation management was performed using mean soil moisture data collected through TDR probes installed in each treatment. Tomato plants...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: TDR; Water resources; Irrigation management; Water content.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400453

HYDROPONIC CULTIVATION OF CORIANDER USING FRESH AND BRACKISH WATERS WITH DIFFERENT TEMPERATURES OF THE NUTRIENT SOLUTION
Provedor de dados: 70
Autores: Silva,Mairton G. da; Soares,Tales M.; Gheyi,Hans R.; Oliveira,Mateus G. B. de; Santos,Caroline C. dos.
ABSTRACT A large number of studies on salinity in hydroponic systems have been carried out, but few of them have evaluated the interaction between salinity and nutrient solution temperatures. Two experiments were carried out in a randomized block design from January to February (Experiment I) and June to July 2018 (Experiment II). Experiment I consisted of treatments with five combinations, as follows: unheated (control) and heated nutrient solution (NS) at a temperature of 32°C using fresh water with an electrical conductivity (ECw) of 0.3 dS m−1, and unheated and heated NS at temperatures of 30 and 32°C using brackish water with an ECw of 6.5 dS m−1 in the main plots, with two coriander cultivars (Tabocas and Verdão) in the subplots, which were grown in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coriandrum sativum L. abiotic stress shoot fresh matter hydroponics; Salinity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600674

CHANGES IN PHYSICAL QUALITY OF OXISOLS UNDER DIFFERENT MANAGEMENT SYSTEMS IN THE BRAZILIAN CERRADO
Provedor de dados: 70
Autores: Feitosa,Carlos E. L.; Costa,Pedro H. dos S.; Meneses,Kamila C. de; Oliveira,Ulisses C. de; Farias,Maryzélia F. de.
ABSTRACT Soil compaction in agricultural areas has greatly increased in recent decades due to intensive farming practices, including short-cycle crops and machinery intensification. This study aimed to evaluate the impacts of management systems on the physical quality of a dystrophic Yellow Oxisol, in the Cerrado region of Brazil. Treatments consisted of five soil management systems, with five replications (native forest [control], slash-and-burn agriculture, pasture, no-tillage, and conventional tillage). Data analysis was performed using a completely randomized experimental design. All systems were analyzed for soil density, macroporosity, microporosity, total porosity, hydraulic conductivity, infiltration, water retention curve, penetration resistance,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: S index; Land cover change; Physical properties; Infiltration; Soil compaction.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500609

SPATIAL VARIABILITY IN LEAF ANALYSIS AND PRODUCTIVITY OF FERTIRRIGATED AÇAÍ
Provedor de dados: 70
Autores: Ribeiro,Felipe O.; Fernandes,Antonio R.; Matos,Gilson S. B. de; Lindolfo,Marcelo M.; Guedes,Rafael S.; Rodrigues,Graziele R.
ABSTRACT This study aimed to define management zones (MZs) for fertirrigated açaí cultivation, based on spatial variability of the foliar nutrients and productivity data. The work was carried out in an area of 5.75 ha of a 7-year crop, with 80 georeferenced sample points. Fresh fruit productivity and nutrient (N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, and Zn) contents were determined. The average contents of macronutrients were considered adequate for adult açaí plants, and their spatial dependence associated with fruit productivity allowed the representation of their distributions through maps of variability. Through multivariate analysis, three main components were highlighted. These components explained 51.5 % of the total variability of the data, where PC1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Management zones; Multivariate analysis; Nutrient contents; Precision agriculture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600800

EFFECTS OF CLAY FRACTION MINERALOGY ON PHYSICAL ATTRIBUTES OF A YELLOW ULTISOL TREATED WITH CHISELING
Provedor de dados: 70
Autores: Nogueira,Deise C. S.; Fernandes,Carolina; Souza,Luma C. de; Camargo,Lívia A.; Ferraudo,Antonio S.
ABSTRACT The objective of this study was to evaluate the influence of minerals in the clay fraction on physical attributes of Yellow Ultisol cultivated with sugarcane and prepared with two different treatments: chiseling across the entire area and chiseling only in planting rows. The samples were collected from four layers of soil at eight months after planting. We assessed the texture of the soil, levels of iron extracted by dithionite-citrate-bicarbonate (DCB) and ammonium acid oxalate (AAO), ratio of kaolinite/(kaolinite + gibbsite), soil bulk density, and soil penetration resistance. The first area showed a higher ratio of kaolinite/(kaolinite + gibbsite) and the second area had greater levels of iron extracted by DCB. Levels of iron extracted by DCB...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Iron oxides; Kaolinite; Soil bulk density; Soil penetration resistance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400433

EFFECTS OF PHOTOSELECTIVE SHADE NETS ON EARLY GROWTH OF SUGARCANE SEEDLINGS
Provedor de dados: 70
Autores: Cordeiro Júnior,José J. F.; Cavalcanti,Sávio D. L.; Souza,Rayanne T. de A.; Batista,Pedro H. D.; Guiselini,Cristiane.
ABSTRACT Sugarcane has a great economic interest in Brazil, so it needs technologies to increase its yield strength, especially for seedling production. This study aimed to ascertain the influence of shading nets on early growth and development of pre-sprouted sugarcane seedlings. An experiment was conducted in a protected environment, in the Rural Federal University of Pernambuco (UFRPE), in Recife-PE, Brazil. The protected environments were covered with anti-UV low-density polyethylene plastic plus: Solpack® red ultranet net, Solpack® white net, Solpack® freshnet net, and without shade net, and five replications each. The experiment was carried out in a completely randomized design, and multivariate principal component analysis (PCA) was used to verify...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protected environment; Shade nets; Solar radiation; Saccharum officinarum.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100010

INFLUENCE OF DRAINAGE METHODS ON SOYBEAN DEVELOPMENT IN LOWLANDS
Provedor de dados: 70
Autores: Rosso,Ricardo B.; Peiter,Marcia X.; Robaina,Adroaldo D.; Ben,Luis H. Bahú; Mezzomo,Wellington.
ABSTRACT The need for crop rotation and profitability in lowland areas are the two main reasons for the introduction of soybean cultivation in the state of Rio Grande do Sul, Brazil. These areas have poor natural drainage, which impedes proper soybean growth. In this sense, this study aimed to assess the efficiency of using broad base ridges in comparison to the surface drainage for soybean cultivation in lowlands. The study was conducted during the 2014/2015 and 2015/2016 growing seasons in São João do Polêsine, RS, Brazil. The assessed drainage methods were the use of broad base ridges with different width dimensions (22.5, 15.0, and 7.5 m) and surface drainage. The results showed that the shoot dry matter and leaf area index have similar behavior. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ridge; Glycine max; Lowland.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100045

PERFORMANCE OF HELICAL METERING MECHANISMS IN THE APPLICATION OF MICROGRANULAR FERTILIZER
Provedor de dados: 70
Autores: Spagnolo,Roger T.; Rosa,David P. da; Pinho,Marivan da S.; Schiavon,Cheiner S.; Schmechel,Diego K.
ABSTRACT The use of microgranular fertilizers is currently increasing, with low application rates as an obstacle in the mechanization. This study aimed to verify the performance of helical metering mechanisms using microgranular fertilizer. Four different fertilizer-metering mechanisms were tested at two pre-established dose rates (35 and 50 kg ha−1) and seven longitudinal angles (−15°, −10°, −5°, 0°, +5°, +10°, and +15°). The experiment was carried out according to Brazilian standards. The results showed that the longitudinal inclination affects the actual fertilizer dose in all tested metering systems. Metering mechanisms with a helicoid with longitudinal and lateral overflow presented a similar dose, according to the variation of the longitudinal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural equipment; Longitudinal inclination; Precision agriculture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400481

RESISTANCE OF A RED LATOSOL TO PENETRATION: COMPARISON OF PENETROMETERS, MODEL ADJUSTMENT, AND SOIL WATER CONTENT CORRECTION
Provedor de dados: 70
Autores: Duarte,Thiago F.; Silva,Tonny J. A. da; Bonfim-Silva,Edna M.; Fenner,Willian.
ABSTRACT Penetration resistance can be determined directly in the field or in the laboratory. However, data obtained using the two methods are not directly comparable. Considering soil moisture influences penetration resistance, penetration resistance data obtained using the two methods can be corrected based on common moisture values. To enable comparison of the data, the measured data should be adjusted using mathematical models. Consequently, the objective of the present study was to compare soil penetration resistance values measured in a Red Latosol using a static penetrometer and a bench-top electronic penetrometer. The comparison was carried out using samples collected from different soil layers, based on moisture levels ranging from 0.15 to 0.28 kg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil physics; Soil mechanical; Soil compaction; Modeling.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400462

ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY
Provedor de dados: 70
Autores: Fruehwirth,Marcelo; Sbizzaro,Mariana; Rosa,Danielle M.; Sampaio,Silvio C.; Reis,Ralpho R. dos.
ABSTRACT Atrazine is a herbicide widely used in agriculture; however, because of its toxicity, alternatives are needed to remove this compound from the environment. In this study, we investigated the adsorption process and the atrazine-adsorbing ability of three biochars produced at different pyrolysis temperatures from byproducts of the wood industry. The biochars were characterized by Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), and their physical characteristics were evaluated by Brunauer-Emmett-Teller (BET) analysis. The biochar pyrolyzed at 350 °C (BM350) adsorbed 26.04% of the herbicide, showing the best performance among the three biochars tested, even though it had the lowest specific surface area (1.467 m2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water contamination; Isotherm; Functional groups; Kinetics models.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600769

INFLUENCE OF FATIGUE ON BENDING OF Pinus caribaea WOOD
Provedor de dados: 70
Autores: Christoforo,André L.; Barbosa,Thaina Q.; Almeida,Diego H. de; Panzera,Tulio H.; Lahr,Francisco A. R.
ABSTRACT This research aimed to evaluate the effect of the number of fatigue cycles (NC, 0 – reference, 450, 4500, 45000, and 90000) for frequencies (Fr) of oscillation equal to 0.5 and 1.0 Hz on the modulus of elasticity (Em) and operating stress (σm) in the static bending of Pinus caribaea wood. Em and σm were determined taking into account three specimens (SPEC) manufactured for reference condition and another three for each of the four NC levels and each Fr level, resulting in 27 SPEC. Sixty experimental determinations were obtained, being the approximate total time of sample exposure to fatigue of 350 hours. The same specimens used to determine Em and σm for the reference condition were also used (via non-destructive tests) to obtain these properties...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatigue; Pinus caribaea; Static bending; Analysis of variance; Regression models.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200238

EFFECT OF THE POSTHARVEST PROCESSING METHOD ON THE BIOCHEMICAL COMPOSITION AND SENSORY ANALYSIS OF ARABICA COFFEE
Provedor de dados: 70
Autores: Rodriguez,Yeison F. B.; Guzman,Nelson G.; Hernandez,Joel G.
ABSTRACT The objective of this work was to study the influence of two postharvest processing methods on the biochemical composition and sensory analysis of a Colombian specialty coffee. For this purpose, coffee beans (Coffea arabica) of the Castillo variety were collected and processed using the wet and semi-dry methods, and the drying process was conducted in a sun drier prototype with a plastic parabolic cover, with a maximum drying air temperature of 50 °C; green coffee beans were managed according to the official Specialty Coffee Association cupping protocol and roasted to a medium and dark degree. Physicochemical determinations (pH, color, titratable acidity, caffeine content, and chlorogenic acid quantification) in green coffee and roasted coffee...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caffeine; Coffee roasting; Coffee processing; Cup quality; Chlorogenic acids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200177

FUZZY SLIDING-MODE TEMPERATURE-CONTROL SYSTEM FOR SOAKING AND GERMINATION OF RICE SEEDS
Provedor de dados: 70
Autores: Zhou,Zheng; Liang,Chunying.
ABSTRACT The soaking and germination process of rice seeds is the starting point in rice cultivation in cold regions and has a significant effect on grain yield. Efficient techniques for controlling the water temperature in the seed tank are required to enhance germination quality. This paper introduces a fuzzy theory for designing a fuzzy logic-based sliding mode controller (SMC) system for a rice seed soaking and germination device. The proposed system was theoretically and experimentally investigated to determine the efficiency of the soaking temperature-control system. A modified fuzzy SMC based on exponent approaching law is also presented for optimizing the proposed controller. A proportional integral derivative (PID) controller was designed to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fuzzy sliding-mode control; Temperature controller; Soaking; Germination.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200215

GRAIN STORAGE SYSTEM IN THE STATE OF PARANÁ, BRAZIL, FROM THE PERSPECTIVE OF MULTIVARIATE ANALYSIS
Provedor de dados: 70
Autores: Cima,Elizabeth G.; Uribe-Opazo,Miguel A.; Guedes,Luciana P. C.; Rocha Junior,Weimar F. da; Johann,Jerry A.
ABSTRACT This study aimed to identify whether there is an association between types of storage and categories of commercialization and use of grains, group the types of storage with the categories of commercialization, and group static and dynamic capacities of the units in the state of Paraná, Brazil. The data were obtained from the Brazilian Registry System of Storage Units for the 2014/2015 season. The association between variables under study was carried out with the chi-square test of independence and correspondence analysis. The cluster analysis consisted of the unweighted pair group method with arithmetic mean and considered a measure of mixed dissimilarity obtained for sets composed of qualitative and quantitative variables. A significant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agribusiness; Association; Cophenetic correlation coefficient; Category of storage capacity; Clustering; Dissimilarity measures.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300280

ENERGY POTENTIAL OF BIOGAS FROM PIG FARMS IN THE STATE OF MINAS GERAIS, BRAZIL
Provedor de dados: 70
Autores: Sousa,Izabelle de P.; Rosa,André P.; Borges,Alisson C.; Renato,Natália dos S.
ABSTRACT Pig farming stands out as an alternative for decentralized electrical energy production from the use of biogas energy. However, its use is still limited. Thus, this study aimed to estimate and map the biogas production, as well as determine the electric power originated by the use of biogas produced in covered lagoon biodigester from pig farms of different sizes in the state of Minas Gerais, Brazil. The research was based on data provided by the Instituto Mineiro de Agropecuária (IMA). Three forms of electric power were estimated, as follows: (i) total, (ii) current, and (iii) installed. They were estimated from the volume of manure generated at each development stage of the animals. The total electric power corresponded to 31 MW, while the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anaerobic digestion; Covered lagoon biodigester; Energy recovery; Biogas; Pig farming.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300396

ERRATUM
Provedor de dados: 70
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100121

HEAT-APPLICATOR MACHINE FOR WEED CONTROL
Provedor de dados: 70
Autores: Spagnolo,Roger T.; Custódio,Tiago V.; Morais,César S. de; Reis,Ângelo V. dos; Machado,Antônio L. T.
ABSTRACT Pesticide environmental risks and increased weed resistance have encouraged studies for alternatives to herbicides. Among these are weed thermal control methods by controlled heat application machines. Thus, this study aimed to test a prototype of heat-applicator machine as a function of changes in gas pressure, travel speed, and tire traffic effect on plants. Then, three experimental factors were tested: gas pressure (98, 196, and 245 kPa), travel speed (0.56, 0.78, and 1.17 m s−1), and tire traffic effect on plants (with and without traffic). The results showed that tire traffic effect on plants and subsequent heat application had no effect on control rate. Weed control rates reached levels considered satisfactory using a heat application speed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thermal control; Agricultural machinery; Organic production.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500595

INFLUENCE OF ALBUMIN ON GUAVA PULP POWDER OBTAINED BY FOAM-MAT DRYING
Provedor de dados: 70
Autores: Maciel,Roberta M. G.; Afonso,Marcos R. A.; da Costa,José M. C.; Araújo,Tayla M. R.
ABSTRACT Guava is a fruit that stands out for its aroma, intense flavor, vitamins, and minerals. Its availability as a powdered food enhances its commercial applications. This study aimed to evaluate mathematical models for adsorption isotherms and determine the properties and flowability of guava pulp powder obtained by foam-mat drying. The models of GAB, BET, Henderson and Oswin were fitted to determine the isotherms of powders with 4 and 8% albumin, at temperatures of 35°C and 45°C. The powders were evaluated by wall friction angle, flow index, apparent density, and particle microstructure analysis. The best fit to the isotherms was obtained by the GAB model. Wall friction angle ranged from 15.7 to 21.9° and from 13.6 to 20.4° for samples containing 4...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical fruit; Food powder; Isotherm.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300388

DESIGN AND IMPLEMENTATION OF FLC APPLIED TO A SMART GREENHOUSE
Provedor de dados: 70
Autores: Belkadi,Anouar; Mezghani,Dhafer; Mami,Abdelkader.
ABSTRACT Greenhouse cultivation needs an accurate modelling and an optimised control system to ensure an adequate microclimatic condition for plants. It represents a complex task due to the high number of input factors. For this reason, an improved intermediate modelling was established under the platform of the MATLAB/Simulink environment to simulate the energy balance and the fuzzy logic controller (FLC) in order to promote a suitable microclimate through the control of the relevant actuators which have been installed in the greenhouse. In addition, the control of the system has been improved through the integration of the Internet of things for data monitoring and recording in real time. The system was designed, prototyped, and tested in Tunis province...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fuzzy logic; IoT; Microclimatic control; Smart Greenhouse; Wireless connectivity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600777

INFLUENCE OF OPERATIONAL CONDITIONS OF MECHANIZED HARVESTING ON SUGARCANE LOSSES AND IMPURITIES
Provedor de dados: 70
Autores: Martins,Murilo B.; Ruiz,Daniel.
ABSTRACT Operational conditions of mechanized harvesting can affect the quality of harvested sugarcane. Therefore, the aim of this study was to assess the influence of the displacement speed and cutting height on the quality of the raw material during the mechanized harvest of sugarcane. Vegetable losses were accounted for in the field by manual collection of the fractions left after harvest. Vegetable and mineral impurities were determined at the processing stage in the laboratory. Both the displacement speed and cutting height did not affect vegetable losses. However, the increase in vegetal impurities occurred at higher displacement speeds, whereas lower cutting heights resulted in higher amounts of mineral impurities.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural mechanization; Harvest; Quality; Saccharum spp.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300352

SEED METERING MECHANISMS AND TRACTOR-SEEDER FORWARD SPEED ON CORN AGRONOMIC COMPONENTS
Provedor de dados: 70
Autores: Cortez,Jorge W.; Anghinoni,Matheus; Arcoverde,Sálvio N. S.
ABSTRACT Seed metering system and tractor-seeder forward speed are factors that affect sowing. Therefore, this study aimed to evaluate sowing and agronomic components of corn as a function of seed metering mechanism and tractor-seeder forward speed, in addition to evaluating the yield data obtained from a harvester with a yield monitor. The soil of the area is classified as Distroferric Red Latosol. The experiment was set up in the second crop season of 2018 and treatments consisted of two seed metering mechanisms (M) (pneumatic and mechanical), and tractor-seeder forward speeds (S) (3, 5, 7, and 9 km h−1). The pneumatic system promoted the best longitudinal distribution, with values above 90%, and the increased sowing forward speed reduced normal spacings...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Grain yield; Pneumatic sowing; Sowing forward speed.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100061

INFLUENCE OF SEED TUBE CURVATURE ON SEED LONGITUDINAL DISTRIBUTION
Provedor de dados: 70
Autores: Savi,Daniel; Kmiecik,Leonardo L.; Strapasson Neto,Lauro; Silva,Thiago X. da; Jasper,Samir P.
ABSTRACT Studies on the longitudinal distribution of seeds in the sowing row seek to improve crop homogeneity, thus generating high productivity. In this context, seed tubes must be analyzed for their angular curvature. Thus, this study aimed to evaluate the influence of the seed tube curvature on the longitudinal distribution of corn and soybean seeds at different speeds. Two experiments were conducted completely randomized in a double factorial design. The first factor consisted of the seed tube curvature (straight and curved) and the second factor consisted of sowing speeds (1.11, 1.39, and 1.67 m s−1 for corn and 1.39, 1.67, 1.94, and 2.22 m s−1 for soybean), with five replications. The parameters analyzed to measure the longitudinal distribution were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sowing uniformity; Productivity; Seed drill; Performance monitoring; Bench experiment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600732

APPARENT DENSITY AS AN ESTIMATOR OF WOOD PROPERTIES OBTAINED IN TESTS WHERE FAILURE IS FRAGILE
Provedor de dados: 70
Autores: Christoforo,André L.; Couto,Natalia G.; Almeida,João P. B.; Aquino,Vinicius B. de M.; Lahr,Francisco A. R.
ABSTRACT The use of new wood species in construction requires knowledge of their properties for safer and more economical structural sizing. In Brazil, structural projects are carried out according to the standard document ABNT NBR 7190:1997. Tests required by this standard for the complete characterization of species require large machines with high costs, which are present only in large research centers. Considering the lack of experimental determination, this study aimed, with the help of analysis of variance of regression models, to investigate the possibility of estimating, through apparent density, wood properties obtained in tests where failure is considered fragile, allowing the estimation of properties of species still little used. Ten wood...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hardwoods; Fragile failure; Regression models; Analysis of variance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100105

CONSTRUCTION AND TESTING OF GLUED LAMINATED TIMBER FRAMES FOR USE IN LAYING POULTRY HOUSES
Provedor de dados: 70
Autores: Stringari,Eduardo H.; Petrauski,Alfredo; Petrauski,Sandra M. C.; Azevedo,Ricardo L.; Savaris,Gustavo.
ABSTRACT This study aimed to present a solution in glued laminated timber to replace frame structures built in reinforced concrete and metallic structure, which are common in agricultural buildings in western Paraná such as those destined to laying poultry house building by agricultural cooperatives. Structural behavior of frames build from Araucaria angustifolia glued boards and vegetable oil-based polyurethane adhesive was evaluated. Tests were carried out to characterize wood and adhesive to obtain verification/sizing parameters. Initially, a full-scale structural project was conducted to meet standard laying poultry house specifications. Afterwards, five units of straight three-articulated frames on a 1:2.5 reduced scale were designed, built, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Timber structure; Rural buildings; Adhesives; Araucaria angustifolia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200122

SORPTION ISOTHERMS AND ISOSTERIC HEAT OF PERICARP AND ENDOSPERM TISSUES OF ARABICA COFFEE FRUIT
Provedor de dados: 70
Autores: Dias,Camila de A.; Andrade,Ednilton T. de; Lemos,Isabella A.; Borém,Flávio M.; Barros,Ezequiel A.
ABSTRACT The aim of this study was to evaluate and model the hygroscopic equilibrium and isosteric heat curves of pericarp and endosperm tissues of arabica (Coffea arabica) coffee fruit, in different temperature and relative humidity conditions. Sorption isotherms were drawn under temperatures from 20°C to 70°C and relative humidity ranging between 10% and 90% until the product reached the equilibrium water content with the environment. The experiment was set up in a 4 × 4 factorial scheme (four relative humidity of the drying air and three tissues of the coffee cherry pericarp + endosperm [1: exocarp + part of the mesocarp, 2: mesocarp, 3: endocarp, 4: endosperm]), in a completely randomized design, with three repetitions. The results were examined by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adsorption; Coffea arabica; Desorption; Hygroscopic equilibrium; Mathematical modeling.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100078

INTERFERENCE OF THE NUMBER OF REMOTE CONTROL VALVES IN USE ON THE ENERGY PERFORMANCE OF AN AGRICULTURAL TRACTOR WITH PRODUCTIVITY MANAGEMENT
Provedor de dados: 70
Autores: Neto,Lauro S.; Kmiecik,Leonardo L.; Jasper,Samir P.; Zimmermann,Gabriel G.; Savi,Daniel.
ABSTRACT The hydraulic remote control system allows the transfer of energy from the engine through a flow of hydraulic oil to engines and implements pulled by agricultural tractors, which can interfere with its energy and operational performance. This study aimed to evaluate the interference of the number of remote control valves in use on the operational and energy performance of an agricultural tractor, using a productivity management system. The experiment was conducted in a strip-plot design, with five replications and three treatments, which consisted of the number of remote control valves in use (1, 2, or 3), totaling 15 experimental units. The results were subjected to normality and homogeneity tests and analysis of variance, followed by the Tukey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Power on the drawbar; Hydraulic system; Operational speed; Specific consumption; Engine thermal efficiency.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300356

CHICKEN MANURE AND LUMINOUS AVAILABILITY INFLUENCE GAS EXCHANGE AND PHOTOCHEMICAL PROCESSES IN Alibertia edulis (Rich.) A. Rich SEEDLINGS
Provedor de dados: 70
Autores: Santos,Cleberton C.; Bernardes,Rodrigo da S.; Goelzer,Ademir; Scalon,Silvana de P. Q.; Vieira,Maria do C.
ABSTRACT Information on the physiological responses of native plants from the Brazilian Cerrado regarding the use of chicken manure and luminosities are important for their silvicultural management. Thus, aimed to evaluate the effect of chicken manure and luminous availability on the photosynthetic metabolism of Alibertia edulis (Rich) A. Rich. The experiment was carried out in pots, testing five doses of chicken manure – CM (0.00, 2.08, 4.16, 6.24 and 8.32 g kg-1) incorporated at Dystroferric Red Latosol, and two luminous environmental (full sun and 50% shaded). The higher CO2 assimilation rate, stomatal conductance and carboxylation efficiency of Rubisco occurred in seedlings grown in full sun. The seedlings showed higher photochemical indicators in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marmelo-do-cerrado; Chlorophyll-a fluorescence; Physiological adjustments; Organic residue; Shaded.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400420

USING SOUNDS PRODUCED BY PIGS TO IDENTIFY THERMONEUTRALITY ZONES FOR THERMAL ENVIRONMENT ASSESSMENT RATIOS
Provedor de dados: 70
Autores: Amaral,Pedro I. S.; Campos,Alessandro T.; Yanagi Junior,Tadayuki; Cecchin,Daiane; Leite,Evandro M.; Dias e Silva,Nhayandra C.
ABSTRACT Although dry bulb temperature (T) is the environmental variable most commonly used to classify thermal comfort in pigs, environmental assessment ratios provide more accurate information. The objective of this study was to correlate the sound pressure levels (SPL) produced by piglet vocalization with the thermal environment observed during the nursery phase, and subsequently establish thermoneutrality ranges. The experiment was conducted on a pig farm where T, relative humidity (RH), and SPL data were recorded between 9 am-5 pm for 42 days. The association between SPL and T in nursery phase piglets was verified; for thermal comfort to be possible, SPLs were 56.3 to 60.3 dB. The SPLs were subsequently used in predictor equations of ratios, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ambience; Animal welfare; Nursery; Rearing; Thermal comfort.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300266

CALIBRATION OF THE THERMAL DISSIPATION PROBE FOR ATEMOYA: (Annona squamosa x A. cherimola)
Provedor de dados: 70
Autores: Santos,Irai M. S.; Vellame,Lucas M.; Araújo,Jairton F.; Marinho,Lígia B.
ABSTRACT When determining plant transpiration (TR) using the thermal dissipation probe method, it is necessary to calibrate the sap flow (SF) estimation equation for each species under study, and thus obtain reliable information about the water demand of crops. This study aims to calibrate the equation used to determine SF using the thermal dissipation probe for atemoya cultivation. The experiment was conducted in the experimental field of the Universidade do Estado da Bahia, Juazeiro, Northeast Brazil. Atemoya plants in the initial phase of development were transplanted into 21.5-l pots arranged on weighing platforms that acted as lysimeters. The SF was determined by the thermal dissipation probe method using 1-cm-long probes. The angular coefficient of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annonaceous; Sap flow; Lysimeter; Granier method.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400545

STATISTICAL PROCESS CONTROL APPLIED TO MONITOR LOSSES IN THE MECHANIZED SUGARCANE HARVESTING
Provedor de dados: 70
Autores: Paixão,Carla S. S.; Voltarelli,Murilo A.; Silva,Rouverson P. da; Borba,Mateus A. de P.; Torres,Luma S.
ABSTRACT The mechanized sugarcane harvesting process is considered one of the major economic bottlenecks, with low operational efficiency and, mainly, high losses of stalks left in the field. In order to minimize these problems and assist in the improvement of processes, this study aimed to evaluate the losses in the mechanized sugarcane harvesting using statistical process control. The experimental design was completely randomized, based on the methodology of statistical process control with samples collected on five work fronts during the daytime and nighttime operation. The experiment was carried out in an agricultural area of a sugarcane mill in the municipality of Ribeirão Preto, SP, Brazil, on five sugarcane harvest fronts. Losses were measured using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Harvester; Visible losses; Saccharum spp.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400473

USE OF INOCULUM IN BIODIGESTERS WITH CATTLE MANURE UNDER CONVENTIONAL AND ORGANIC PRODUCTION SYSTEMS
Provedor de dados: 70
Autores: Paes,Juliana L.; Alves,Thaís B. S.; Silva,Leonardo D. B. da; Marques,Anieli de S.; Dias,Valentina R. S.
ABSTRACT One way of making livestock farming a more sustainable practice is to raise cattle organically. However, regardless of the production system, there is a generation of residues that can be converted into energy resources using biodigesters. This study aimed to evaluate the addition of inoculum in the anaerobic biodigestion of cattle manure under organic (OPS) and conventional production systems (CPS) in an Indian model biodigester. The physicochemical (pH, EC, TS, VS, DBO, and COD) and microbiological characteristics of the affluent and effluent, as well as the production, potential, and qualitative characteristics of the biogas, were evaluated. CPS showed higher reductions in TS, VS, BOD, and COD than OPS, with the highest effect of biogas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anaerobic biodigestion; Biogas; Starting point; Biofertilizer potential.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200146

A SPECTRAL AGROMETEOROLOGICAL MODEL FOR ESTIMATING SOYBEAN GRAIN PRODUCTIVITY IN MATO GROSSO, BRAZIL
Provedor de dados: 70
Autores: Sarmiento,Christiany M.; Coltri,Priscila P.; Alves,Marcelo de C.; Carvalho,Luiz G. de.
ABSTRACT This study used spectral data integrated with the agrometeorological model by Doorenbos and Kassam to estimate soybean grain productivity in the state of Mato Grosso, Brazil. In the developed model, spectral data were used instead of meteorological data and biophysical parameters of the crop. For this purpose, the products of real and potential evapotranspiration (MOD16), normalized difference vegetation index – NDVI (MOD13Q1), and leaf area index (MOD15A2H) from the MODIS satellite were used, in addition to sunstroke data obtained by using the visible channel from the satellite GOES IMAGER. The results obtained showed that, with the proposed methodology, it was possible to follow the development of soybean cultivation throughout the cycle and to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geographic Information System; Mathematical Modeling; Remote Sensing; Agrometeorology; Crop Monitoring.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300405

WATER HARDNESS AND pH IN THE EFFECTIVENESS OF GLYPHOSATE FORMULATIONS
Provedor de dados: 70
Autores: Cunha,João P. A. R. da; Palma,Roxanna P.; Oliveira,Arthur C. de; Marques,Matheus G.; Alvarenga,Cleyton B. de.
ABSTRACT The hardness and pH of the spray water can interfere with the weed control effectiveness with herbicides, but it is not clear the magnitude of this interference, mainly associating different levels of pH and hardness to different glyphosate formulations. This study aimed to evaluate the influence of hardness and pH, in association, of the water used in the application of two glyphosate formulations on the weed control effectiveness. The experiment was conducted in duplicate, in areas with a predominance of Digitaria horizontalis, under a randomized block design with a 4×4×2+1 factorial scheme, composed of four water hardness levels (70, 110, 230, and 430 ppm CaCO3), four pH levels (3.5, 4.5, 5.5, and 6.5), two glyphosate formulations (ammonium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Water quality; Spraying; Application technology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400555

CHARACTERIZATION OF THE THERMAL ENVIRONMENT IN BROILER HOUSES WITH DIFFERENT CLIMATE CONTROL SYSTEMS
Provedor de dados: 70
Autores: Teles Junior,Carlos G. de S.; Gates,Richard S.; Souza,Cecilia de F.; Tinôco,Ilda de F. F.; Vilela,Monique de O.
ABSTRACT The environment control of broiler houses must be done adequately to provide good thermal conditions to broilers without wasting energy. The objective of this study was to characterize the thermal environment in two mechanically ventilated broiler houses with a negative pressure ventilation system, one with a cellulose pad evaporative cooling system and the other with misting nozzles for evaporative cooling. The experiment was conducted in Ervália-MG during winter, spring, and summer. The thermal environment was characterized based on the relationship between the temperature observed inside the broiler houses and the temperatures recommended for the thermal comfort of birds of different ages. The recorded data were evaluated using descriptive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler thermal demand; Cooling; Heating; Thermal environment management.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500571

INFLUENCE OF DIFFERENT TEMPERATURES AND AIRFLOWS ON DRYING OF NATURAL AND PULPED COFFEE
Provedor de dados: 70
Autores: Alves,Guilherme E.; Borém,Flávio M.; Andrade,Ednilton T.; Isquierdo,Éder P.; Siqueira,Valdiney C.; Dias,Camila de A.
ABSTRACT This study aimed to evaluate drying kinetics for natural and pulped coffee, using different temperatures and drying airflows. For the conduction of the experiment, coffee fruits (Coffea arabica L. cv. Topázio) were harvested manually, selecting only ripe fruits and subsequent to the hydraulic separation. For drying the coffee, use a mechanical dryer with two temperatures (40 and 45°C) and four drying air streams (24; 60; 96 and 132 m3.min-1.m-2). Twelve models for employees to describe the drying kinetics of coffees. Among the models used to describe the drying process of natural coffee and pulped coffee, according to the results of the coefficient of determination, relative mean error, standard deviation of estimates and distribution of waste...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arabica L.; Mathematical modeling; Drying rate.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200192

COMPOSTING PROCESS IN THE PRODUCTION OF LETTUCE SEEDLING SUBSTRATES: EFFECT OF COVERING AND TURNING FREQUENCY
Provedor de dados: 70
Autores: Ripp,Paula G.; Gusmão,Ana P.; Lorin,Higor E. F.; Costa,Mônica S. S. de M.; Edwiges,Thiago.
ABSTRACT The composting of waste from a broiler chicken production chain (BCPC) promotes the mitigation of environmental impacts and allows the commercialization of compost as an agricultural input. Both the characteristics and the potential for use of the final compost depends on the operational conditions during composting. The objective of this study was to evaluate the use of organic compounds generated from composting BCPC residues and the pruning debris of urban trees in the germination and initial growth of lettuce seedlings. Six organic substrates obtained under different coverage conditions (presence and absence) and number of turns (8, 12, and 16) were evaluated using the germination index (IG) and Dickson quality index (DQI) for the production...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental conditions; Leaching; Seed germination index; Dickson quality index.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500562

ARTIFICIAL NEURAL NETWORK-BASED METHOD TO IDENTIFY FIVE VARIETIES OF EGYPTIAN FABA BEAN ACCORDING TO SEED MORPHOLOGICAL FEATURES
Provedor de dados: 70
Autores: Aboukarima,Abdulwahed; El-Marazky,Mohamed; Elsoury,Hussien; Zayed,Moamen; Minyawi,Mamdouh.
ABSTRACT One of the new crop varieties that have been adopted for high yield is the Egyptian faba bean. However, poor-quality faba bean has reduced economic value. Quality evaluation is thus important and can be performed using computational intelligence. We developed a robust method based on morphological features and artificial neural network for quality grading and classification of Egyptian faba-bean seeds, covering five varieties: Giza3, Giza461, Misr1, Nobarya1, and Sakha1. Fifteen seed morphological features were then calculated, and artificial neural networks classified faba beans into different varieties. The results indicated an overall classification accuracy of 77.5% was achieved in training phase and it was 100% when testing dataset was used....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Faba bean; Quality; Classification; Artificial neural network; Features.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600791

GROWTH OF ORNAMENTAL PEPPER IN COLORED CONTAINERS UNDER PROTECTED ENVIRONMENTS
Provedor de dados: 70
Autores: Costa,Edilson; Alixame,Danieli; Silva,Abimael G. da; Pupim,Rafael de S.; Binotti,Flávio F. da S.
ABSTRACT Ornamental pepper plants produced in containers under protected environments have high added value. We carried out research with an aim to evaluate the growth and development of ornamental pepper in containers of different colors under two protected environments, both with thermal-reflective screens under a polyethylene film: one with 18–22 % shading and the other with 42–50 % in colored containers (brown, blue, black, and red). The treatments formed by a 2 × 4 factorial (environments × container colors) were arranged in a completely random pattern with 4 replications and 5 plants per plot, and a joint analysis of experiments was used to compare environments. The protected environment covered with low-density polyethylene film having 42–50 % of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum frutescens; Plant ambiance; Pot colors.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500581

WATER-RETAINING POLYMER MITIGATES THE WATER DEFICIT IN Schinus terebinthifolia: PHOTOSYNTHETIC METABOLISM AND INITIAL GROWTH
Provedor de dados: 70
Autores: Beltramin,Francisco A.; Silva,Willian C.; Santos,Cleberton C.; Scalon,Silvana de P. Q.; Vieira,Maria do C.
ABSTRACT The use of water-retaining polymer (hydrogel) can mitigate the damage to the photosynthetic apparatus and increase the robustness of young plants under water deficit conditions. Thus, the aim of this study was to evaluate the effect of water-retaining polymer on the morphophysiological aspects of Schinus terebinthifolia Raddi submitted to water deficit. The studied water regimes were characterized by three plant irrigation management: 1) control: irrigated daily, 2) stress: water deficit (irrigation suspension) and 3) stress + hydrogel: water deficit + water-retaining polymer. The plants were submitted to irrigation suspension until photosynthesis approached zero [1st P0], followed by resumption of irrigation (REI) for 15 days. After REI, until...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian pink pepper; Cerrado biome; Hydrogel; Physiological plasticity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600684

USE OF AIC AND BIC IN DESORPTION ISOTHERMS OF TAMARIND SEEDS (Tamarindus indica L.)
Provedor de dados: 70
Autores: Ferreira Junior,Weder N.; Resende,Osvaldo; Pinheiro,Gleyce K. I.; Silva,Ligia C. de M.; Costa,Eduarda R.
ABSTRACT The knowledge of hygroscopicity is essential for the storage of tamarind seeds, but there is a limitation of a judicious statistical parameter to define the best mathematical model to adjust the isotherms of plant products. Therefore, this study aimed to determine the desorption isotherms of tamarind seeds and test the Akaike information criterion (AIC) and Schwarz Bayesian information criterion (BIC) for choosing the best mathematical model. Seeds with an initial moisture content of 21.00 ± 0.10% dry basis (db) were dried at 45 °C until they reached moisture contents of 17.27 ± 0.10, 15.04 ± 0.16, 14.14 ± 0.06, 12.41 ± 0.17, and 10.52 ± 0.12% db. The water activity of the product was determined by the static-indirect method at temperatures of 10,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water activity; Hygroscopicity; Cavalcanti Mata.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400511

HYDROPHILIC POLYMER CHANGES THE WATER DEMAND IN THE IMPLEMENTATION OF A DWARF CASHEW ORCHARD
Provedor de dados: 70
Autores: Gondim,Rubens S.; Serrano,Luiz A. L.; Maia,Aline de H. N.; Silva,Janderson P. da.
ABSTRACT Important losses of dwarf cashew seedlings during the establishment of orchards in the Brazilian semiarid are related to the relatively short rainy season. This study aimed to evaluate biochar and hydrophilic polymer as soil amendments to increase water retention and reduce plant death in the first year. An experiment was conducted at the Curu Station, Paraipaba, CE, Brazil, using the clone BRS 226. The experimental design consisted of randomized blocks, with amounts of 0.5, 1.0, 2.0, and 4.0 kg of cashew wood biochar and 20, 40, 60, 80 g of hydrophilic polymer applied per pit, as well as a control treatment (no soil amendment). Seedlings were submitted to an irrigation regime to avoid water stress (5 L water seedling−1 when the tensiometer...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anacardium occidentale L.; Climate change; Adaptation; Soil amendment; Biochar.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300344

VEGETATION INDICES FOR IRRIGATED CORN MONITORING
Provedor de dados: 70
Autores: Alvino,Francisco C. G.; Aleman,Catariny C.; Filgueiras,Roberto; Althoff,Daniel; da Cunha,Fernando F.
ABSTRACT Monitoring of large agricultural lands is often hampered by data collection logistics at field level. To solve such a problem, remote sensing techniques have been used to estimate vegetation indices, which can subsidize crop management decision-making. Therefore, this study aimed to select vegetation indices to detect variability in irrigated corn crops. Data were collected in São Desidério, Bahia State (Brazil), using an OLI sensor (Operational Land Imager) embedded to a Landsat-8 satellite platform. Five corn growing plots under central pivot irrigation were assessed. The following vegetation indices were tested: NDVI (Normalized Difference Vegetation Index), EVI (Enhanced Vegetation Index), SAVI (Soil Adjusted Vegetation Index), GNDVI (Green...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vegetation cover; Decision-making; Remote sensing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300322

BEHAVIOR OF BROILERS UNDER THE INFLUENCE OF LED LIGHTING AND MICROMETEOROLOGICAL ELEMENTS
Provedor de dados: 70
Autores: Rodrigues,Tatiana P. N. da S.; Pandorfi,Héliton; Guiselini,Cristiane; Almeida,Gledson L. P. de; Morrill,Waldirene B. B.
ABSTRACT The objective of this research was to analyze the differences between the food behaviors observed under the factors of production environment, sex and lighting system, using stochastic tools of multivariate analysis. As for the thermal characteristics of the environment, air temperature (T, °C), enthalpy (H, kJ kg-1), and black globe temperature and humidity index (BGTHI) showed high positive correlation with each other and strong negative correlation with relative humidity (RH, %). The “male drinking” behavior was positively associated with thermal characteristics of the environment in the three periods of the day, that is, the act of drinking more water would be a way to alleviate thermal stress. Birds subjected to red LED showed a strong...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal welfare; Broiler farming; Lighting system; Principal component analysis; Thermal comfort.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300272

DIRECT CONNECTION PHOTOVOLTAIC SYSTEM IN MULTI-MOTOR APPLICATION FOR THE RURAL SECTOR
Provedor de dados: 70
Autores: Queiroz,André O.; Brito,Alaan U.
ABSTRACT Photovoltaic pumping systems equipped with variable speed drive have been consolidated as an alternative for water supply in rural locations where energy services are unavailable. Such systems are of the direct connection type and, therefore, it is likely that their operation occurs in two situations: when energy is available and when the reservoir is full or the available energy is insufficient for pumping water. Thus, this study aimed to evaluate the shared use of a photovoltaic pumping system equipped with a variable speed drive and the motor load of the agricultural equipment (cassava grater). The tests were performed in the laboratory and subsequently in the field, where data of the grated cassava production was collected in periods when the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Photovoltaic pumping system with variable speed drive; Agricultural equipment; Cassava processing (Manihot esculenta Crantz).
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300303

ERRATUM
Provedor de dados: 70
Tipo: Info:eu-repo/semantics/other
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400561

ESTIMATION OF WOOD TOUGHNESS IN BRAZILIAN TROPICAL TREE SPECIES
Provedor de dados: 70
Autores: Christoforo,André L.; Almeida,Diego H. de; Varanda,Luciano D.; Panzera,Tulio H.; Lahr,Francisco A. R.
ABSTRACT Wood has been used for several purposes such as in civil and rural construction. Knowing wood mechanical behavior under short-term loading is essential for safer structural designs. However, wood toughness is a mechanical property little investigated for this purpose. Thus, this study aimed to evaluate, using exponential and polynomial regression models (linear, quadratic, and cubic), the possibility of estimating toughness as a function of apparent density, compression parallel to grain strength, and modulus of rupture in static bending. Thirty-six Brazilian tropical wood species from south of Roraima, Mato Grosso do Sul, and north and northeast of Mato Grosso were tested. Our results showed the significance and representativeness of all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apparent density; Tropical wood species; Modulus of elasticity; Compression parallel to grain strength; Toughness.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200232

PERFORMANCE AND WELFARE OF FINISHING PIGS SUBJECTED TO CLIMATECONTROLLED ENVIRONMENTS AND SUPPLEMENTARY LIGHTING
Provedor de dados: 70
Autores: Barnabé,Janice M. C.; Pandorfi,Héliton; Gomes,Nicoly F.; Ameida,Gledson L. P. de; Guiselini,Cristiane.
ABSTRACT An adequate thermal environment in pig farming facilities is essential to ensure productivity and animal welfare. The objective of this study was to evaluate the behavior and performance of finishing pigs, subjected to climate-controlled environments and supplementary lighting. Twenty-seven pigs (3/4 Duroc, 1/4 Pietrain) were kept in pens with no climate control, pens with forced ventilation and pens with adiabatic evaporative cooling system, associated with 12 h of natural light, 12 h of natural light + 4 h of artificial light and 12 h of natural light + 6 h of artificial light. The experimental design was completely randomized, in a 3x3 factorial arrangement and the means were compared by Tukey test (p&lt;0.05). Meteorological variables,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal ambience; Behavior; Thermal comfort; Weight gain.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300294

RESPONSE FROM ANAEROBIC DIGESTION OF LAYING HEN MANURE WITH BIOCHAR ADDITION
Provedor de dados: 70
Autores: Andrade,Willian R.; Ferreira,Cecilia de F. S.; Gates,Richard S.; Borges,Alisson C.; Santos,Tânia M. B. dos.
ABSTRACT This study aimed to assess the anaerobic digestion response of laying hen manure with different inclusion levels of biochar in batch reactors as measured by physicochemical parameters, biogas production and digestate quality. Four levels of biochar inclusions (0, 2.5, 5.0 and 7.5%) were tested with 3 replicates each. Twelve two-liter anaerobic batch reactors were used for 86 days at 35°C. Substrate and digestate of each treatment were assessed for monitored parameters, biogas production and digestate quality. Increased levels (0, 2.5, 5.0 and 7.5%) of biochar were found to gradually reduce total ammonia nitrogen (1794.33, 140.84, 950.81 and 509.32 mg.L-1, respectively). Despite the positive effect of biochar to accelerate initial biogas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogas yield; Total ammonia nitrogen; Volatile solids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300315

THERMODYNAMIC PROPERTIES OF TAMARIND SEEDS (Tamarindus indica L.)
Provedor de dados: 70
Autores: Ferreira Junior,Weder N.; Resende,Osvaldo; Silva,Ligia C. de M.; Pinheiro,Gleyce K. I.; Sousa,Kelly A. de.
ABSTRACT Tamarind is used in the food and pharmaceutical industry, and its seed is the main means for the reproduction of this species, thus justifying studies that ensure its post-harvest viability. This research aimed to study the thermodynamic properties of tamarind seeds as a function of the equilibrium moisture content. The experimental data of the water activities were obtained by the indirect static method. The Cavalcanti Mata model was used to determine the thermodynamic properties of tamarind seeds, as it was the model that best fitted the experimental data of the desorption isotherms. The results showed that the thermodynamic properties are influenced by the moisture content and temperature, with an increase in the energy required to remove water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Equilibrium moisture content; Enthalpy; Gibbs free energy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600740

DEVELOPMENT OF SOFTWARE FOR ANALYSIS OF BEHAVIOR AND WELFARE OF BROILERS
Provedor de dados: 70
Autores: Rodrigues,Tatiana P. N. da S.; Pandorfi,Héliton; Stosic,Borko; Lucena,Aline C. de; Rodrigues,Diogo F. B.
ABSTRACT The objective of this study was to develop a software based on image processing and computer vision techniques for monitoring the feeding/collective behavior of broilers (Cobb) and validate it based on the results obtained from the visual analysis of an expert. The visual analysis was performed based on the observation and quantification of behaviors in the interval of 10 min at each hour of the day, in the period of 24 hours, totaling 1728 frames/day, for males and females. The software was developed using the Hoshen-Kopelman algorithm, for labeling clusters, which would basically be the grouping of similar pixels. This software is written in the 1999 standard of the C language. After this stage of programming, the Hoshen-Kopelman algorithm...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler farming; Image processing; Lighting system; Computer vision.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600657

THEORETICAL ANALYSIS AND EXPERIMENTAL STUDY ON THE PROCESS OF CONVEYING AGRICULTURAL FIBER MATERIALS BY SCREW CONVEYORS
Provedor de dados: 70
Autores: Wulantuya,; Wang,Hongbo; Wang,Chunguang; Qinglin,.
ABSTRACT To improve the conveying efficiency and working stability of a screw conveyor, the feeding methods, running conditions and flow characteristics of materials were studied by theoretical analysis and experiments. The theoretical analysis results show that the screw conveyor runs more stably when the helix angle of the screw blade is equal to the moving helical angle. A new spring-finger was designed by us and was used in the experiment. The experimental results show prove that the spring-finger feeder can help homogeneously and continuously to feed the screw conveyor and to improve the working stability of the screw conveyor. The movement state of materials along a pitch was videotaped by a high-speed camera with different filling rates and rotation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coarse fodder; Experimental study; Theoretical analysis; Screw conveyor.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500589

PEDOTRANSFER FUNCTION TO ESTIMATE THE SOIL STRUCTURAL “S” INDEX AND SPATIAL VARIABILITY IN AN OXISOL WITHIN A LIVESTOCK FARMING SYSTEM
Provedor de dados: 70
Autores: Tavanti,Renan F. R.; Montanari,Rafael; Panosso,Alan R.; Freddi,Onã da S.; Paz-González,Antonio.
ABSTRACT Various attributes are often required to build soil quality indicators. However, determining these attributes is time-consuming and requires several specific devices. Thus, it is desirable to develop indexes that express soil quality based on easily determined attributes. The objective of this study was to investigate the spatial variability of the S index and its correlation with other physical and chemical soil attributes to generate a pedotransfer function for estimating the S index. A georeferenced sampling mesh covering 1.4 ha and employing 71 points was installed. The soil samples were collected in 0.00–0.15 m and 0.15–0.30 m deep layers to determine the physical and chemical attributes. The results indicated that the S index was correlated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil and water management; Geostatistics; Soil quality index; Stepwise procedures.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100034

DESIGN OF ELECTRONIC CONTROL GOVERNOR FOR A SINGLE CYLINDER GASOLINE ENGINE BASED ON AN INTELLIGENT SENSING ALGORITHM
Provedor de dados: 70
Autores: Sun,Lixiang; Yang,Yan; Ma,Fang; Jing,Wen; Zheng,Yibo; Wu,Hao.
ABSTRACT At present, most large machinery and vehicle engines are electronically controlled but their electronic control systems are too expensive to be popularised and applied in small gasoline engines with relatively low prices. Therefore, small gasoline engines still use mechanical speed regulators. Mechanical speed regulators not only have the defects of inertia lag, friction resistance, inherent speed regulation and the like, but also have the disadvantage that dynamic performance and steady performance cannot be combined, which is not suitable for the increasingly improved speed regulation performance of gasoline engines. This paper describes the design of an electronically controlled intelligent governor for small gasoline engines. Starting from a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Electronic control; Intelligent perception; Dynamic and steady state performance; Power; Hunting.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400495

ENVIRONMENTAL THERMAL COMFORT OF A REDUCED MODEL USING CROSS-LAMINATED TIMBER
Provedor de dados: 70
Autores: Sampaio,Carlos A. de P.; Terezo,Rodrigo F.; Motta,Guilherme; Silva,Leonardo M. da C.; Vassem Júnior,Ilson.
ABSTRACT The challenges for the use of the cross-laminated timber (CLT) system in the Brazilian agricultural market are significant. This study evaluated the thermal performance of fiber cement tiles associated with a CLT non-conventional structure compared to those of ceramic, fiber cement and aluminum roof tiles based on following thermal comfort indexes (i.e., black globe humidity index (BGHI), radiant heat load (RHL) and specific enthalpy) using physical conventional models of reduced-scale rural facilities under summer conditions. The non-conventional CLT model comprised closing walls and a lining that form a self-supporting structure with few air inlets. This model presented reduced thermal comfort indexes compared to the other conventional roofs....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Precasting in wood; Self-supporting; Thermal comfort; Environmental factors.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400413

STATIC PRESSURE DROP IN LAYERS OF CASTOR BEAN GRAINS
Provedor de dados: 70
Autores: Goneli,André L. D.; Corrêa,Paulo C.; Figueiredo Neto,Acácio; Kirsch,Michele R. H.; Botelho,Fernando M.
ABSTRACT Knowledge regarding the static pressure drop in granular layers is of fundamental importance in the development of efficient drying and aeration projects of agricultural products. Thus, the objective of this study was to evaluate the effects of impurity contents on the static pressure drop in different bed depth of castor bean grains, as well as modify the mathematical models per the obtained experimental data and select the model that best represents this phenomenon. First, impurities in castor bean grains of the Guarani variety were eliminated and 6% of the moisture content (dry basis) was retained. The coarse impurity contents were obtained with 2%, 4%, and 6% of mass addition. The pressure drop in different bed depth of clean and impure castor...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bulk density; Load loss; Porosity; Ricinus communis L.; Moisture content.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200184

ASYMMETRIC WETTED SECTOR ANGLE IN WATER DISTRIBUTION OF TRAVELING GUN IRRIGATION SYSTEMS
Provedor de dados: 70
Autores: Prado,Giuliani do; Colombo,Alberto.
ABSTRACT This work aimed to simulate the water distribution of traveler gun irrigation, working with asymmetrical wetted angles and in windy conditions. In the simulations of a sprinkler with uniform radial profile, the following were considered: i) wetted angles between 180 and 330°; ii) wetted angle asymmetries from 0 to 90°; iii) wind speeds from 0 to 4.5 m s-1; and iv) wind direction of 0, 45, and 90°. Christiansen uniformity coefficients (CU) were calculated for strip widths from 30 to 100% of the sprinkler wetted diameter (WD). Regardless of the wetted angle adjustment, irrigations under wind speeds of 4.5 m s-1 should be avoided and strip spacings of less than 50% WD provide high CU for wind speeds up to 3.0 m s-1. For any wind conditions,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Strip width; Travel path; Uniformity coefficient.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400443

ECONOMIC MANAGEMENT MODEL OF ELECTRICITY GENERATED FROM BIOMASS IN A PIG FARM
Provedor de dados: 70
Autores: Diel,Patrícia Bellé; Casarin,Vanusa A.; Stracke,Marcelo P.; Silva,Deoclécio J. C. da; Santos,Antonio V. Dos; Przyczynski,Renato.
ABSTRACT Faced with the increasing demand for renewable energy, researchers have developed several ways to generate them, such as biogas. Thus, the present study aims to demonstrate the economic viability of electricity generation from biodigesters in a pig farm to contribute to sustainable development by reducing pollution in the environment. Studies focused on biomass derived from pig waste are still scarce. Moreover, one of the motivations of the present study is the fact that Brazil is a major producer and exporter of pig meat, with most of the production taking place in the south and southeast regions. The methodology used is defined as exploratory, descriptive, explanatory, and applied. The scientific procedures were documentary and bibliographic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodigesters; Renewable energies; Pig farming; Economic management model.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200132

SPRAY DEPOSITION ON MAIZE USING AN ELECTROSTATIC SPRAYER
Provedor de dados: 70
Autores: Assunção,Heli H. T. de; Cunha,João P. A. R. da; Silva,Sérgio M.; Alves,Guilherme S.; Lemes,Ernane M.
ABSTRACT It is a well-known fact that the application of pesticides can be improved using an electrostatic spray due to the reduction of the application rate and increase in deposition on plant targets. However, little information exists on the use of such technology in maize crops. Thus, this study is aimed to evaluate the spray deposition on maize resulting from spray application using an electrostatic sprayer in combination with low application rates and different spray compositions. A field experiment was conducted in a randomized block having a 2×2×2 factorial design with two application rates (95 and 52 L ha-1), with or without the spray electrification, and with or without the synthetic adjuvant. The droplet electrification ability, interference of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Application rate; Electrified droplet; Spray technology; Spray deposition.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400503

PRODUCTIVITY OF CORN HYBRIDS IN RELATION TO SOWING OVERLAP
Provedor de dados: 70
Autores: Farias,Marcelo S. de; Dagios,Ravel F.; Santi,Antônio L.; Cherubin,Maurício R.
ABSTRACT The automatic control of section shut-off in seed drills minimizes seeding overlap and can reduce productivity losses, especially in responsive crops such as corn. In that context, this study evaluated the effect of sowing overlap on the grain yield and productivity of three corn hybrids. A DB-50 precision seed drill, with 33 rows equipped with a 16-row automatic section control, was used in this experiment. A randomized block design was applied to test three corn hybrids under two sowing conditions (without sowing overlap - WOSO; and with sowing overlap - WSO), with four replications. The analyzed variables were the number of plants per hectare, the number of cobs per hectare, cob length, the number of grains per cob, the thousand grain weight,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Precision agriculture; Section control; Plant population.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400489

BIOGAS YIELD AND PRODUCTIVENESS OF SWINE MANURE FOR DIFFERENT REACTOR CONFIGURATIONS
Provedor de dados: 70
Autores: Lins,Marcos A.; Steinmetz,Ricardo L. R.; Amaral,André C. do; Kunz,Airton.
ABSTRACT The progression of the organic loading rate (OLR) up to a certain limit increases biogas production. The limit and operation range vary according to the configuration of the reactor and are associated with other variables that generate different results with respect to biogas yield (BY) and biogas productiveness (BP). The aim of this study was to investigate the effect of the OLR on the BY and BP from swine manure in continuous stirred tank reactors (CSTRs) and upflow anaerobic sludge blanket reactors (UASBs). In the assay with the CSTR, the best operational condition was at an OLR of 0.7 gVS add L−1 reactor d−1 and a hydraulic retention time (HRT) of 18 days. At this operational condition, 0.8 LN biogas gVS add−1 of BY and 0.6 LN biogas L−1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Sustainability; Swine farms.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600664

PREDICTIVE MODELS OF WATER APPLICATION AND DISTRIBUTION EFFICIENCY IN CONVENTIONAL SPRINKLING
Provedor de dados: 70
Autores: Araújo,Edcássio D.; Santos,Dionei L.; Alvino,Francisco C. G.; Ferreira,Lucas B.; Cunha,Fernando F. da.
ABSTRACT Correct determinations of distribution (Ed) and application (EA) efficiencies allow adequate estimations of the gross irrigation depth. This study aimed: i) to determine the distribution efficiency using the Christiansen uniformity coefficient (CUC) in a sprinkler irrigation system under different weather conditions and working pressures; ii) to compare the mean, median, and cumulative CUC values; and iii) to evaluate the predictive capacity of four EA estimation models. CUC values were determined from 80 assessments, as well as the mean, median, and cumulative. The precipitated water depth accumulated in each collector was considered for the accumulated CUC. More uniform evaluations were used for EA (working pressure of 196 kPa), resulting in 20...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Uniformity coefficient; Irrigation efficiency; Evaporation and wind drift.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100024

PERFORMANCE OF AIR INDUCTION SPRAY NOZZLE MODELS UNDER DIFFERENT OPERATING CONDITIONS
Provedor de dados: 70
Autores: Cunha,João P. A. R. da; França,Jorge A. L.; Alvarenga,Cleyton B. de; Alves,Guilherme S.; Antuniassi,Ulisses R.
ABSTRACT For the successful application of phytosanitary products, it is essential to understand the spraying process well. The present work aims to evaluate the spectrum and speed of the droplets produced by different spray nozzle models with air induction, working under different operating conditions. The experiment was conducted using an entirely randomized design with five repetitions in a 3 × 3 × 3 factor scheme that incorporates three nozzle models (ADIA, AIXR, and GA), three nominal flows (0.76, 1.14, and 1.51 L min−1), and three operating pressures (200, 300, and 400 kPa). The spectrum and speed of the droplets were determined directly using a real-time droplet analyzer based on high-resolution image analysis. The spray nozzle model interfered with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spray tip; Droplet spectrum; Sprayer; Application technology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600711

NUGGET EFFECT INFLUENCE ON SPATIAL VARIABILITY OF AGRICULTURAL DATA
Provedor de dados: 70
Autores: Guedes,Luciana P. C.; Bach,Raquel T.; Uribe-Opazo,Miguel A.
ABSTRACT Spatial variability description of soil chemical properties by thematic maps depends substantially on suitable geostatistical models. One of the parameters composing a geostatistical model is nugget effect. This study aimed to evaluate the simultaneous influence of nugget effect and sampling design on geostatistical model estimation and estimation of soil chemical properties at unsampled sites, considering simulated data. Our results will be used as scientific basis for spatial variability analyses of soil chemical properties in agricultural areas. Given the simulation results and agricultural data, we concluded that the high nugget effect values obtained here reduced spatial estimation efficiency. Moreover, a systematic sampling design promoted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geostatistics; Spatial Dependence Index (SDI); Relative Nugget Effect (RNE); Spatial Estimation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100096

ARTIFICIAL NEURAL NETWORKS FOR PREDICTION OF PHYSIOLOGICAL AND PRODUCTIVE VARIABLES OF BROILERS
Provedor de dados: 70
Autores: Abreu,Lucas H. P.; Yanagi Junior,Tadayuki; Bahuti,Marcelo; Hernández-Julio,Yamid F.; Ferraz,Patrícia F. P.
ABSTRACT Due to a number of factors involving the thermal environment of a broiler cutting installation and its interaction with the physiological and productive responses of birds, artificial intelligence has been shown to be an interesting methodology to assist in the decision-making process. For this reason, the main aim of this work was to develop an artificial neural network (ANN) to predict feed conversion (FC), water consumption (Cwater), and cloacal temperature (tclo) of broilers submitted to different air dry-bulb temperatures (24, 27, 30, and 33°C) and durations (1, 2, 3, and 4 days) of thermal stress in the second week of the production cycle. Relative humidity and wind speed were fixed at 60% and 0.2 ms−1, respectively. The experimental data...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Poultry; Thermal stress; Artificial intelligence.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100001

SPATIAL VARIABILITY OF IRRIGATED COMMON BEAN YIELD CORRELATED WITH THE FERTILITY OF A SANDY SOIL
Provedor de dados: 70
Autores: Oliveira,Job T. de; Roque,Cassiano G.; Teodoro,Paulo; Montanari,Rafael.
ABSTRACT The common bean is widely cultivated in Brazil. In the 2016–2017 growing season, an experiment was carried out in a Typic Quartzipsamment (or Neossolo Quartzarênico) soil in the municipality of Cassilândia, MS, Brazil, with the aim of characterizing specific aspects of soil management, using a linear and spatial correlation between the irrigated yield of common beans and the chemical properties of the soil. Soil samples were collected from layers at depths 0.00–0.10 and 0.10–0.20 m, within a grid of 117 georeferenced points. A data analysis was carried out using statistical and geostatistical techniques. A multiple regression analysis showed that about 31% of the grain yield variability of the irrigated common bean crop could be attributed to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Precision agriculture; Geostatistics; Soil management; Irrigation; (Phaseolus vulgaris L.).
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500645

PHYSICAL AND MECHANICAL PROPERTIES OF PARTICLEBOARD FROM Eucalyptus grandis PRODUCED BY UREA FORMALDEHYDE RESIN WITH SiO2 NANOPARTICLES
Provedor de dados: 70
Autores: Valle,Ana C. M.; Ferreira,Bruno S.; Prates,Glaucia A.; Goveia,Danielle; Campos,Cristiane I. de.
ABSTRACT The use of nanoparticles appears to be a feasible option for improving the quality of a range of wood-based products. Studies show that they can improve both the physical and mechanical properties of wood and wood-based products. This preliminary study aimed to analyze the influence of SiO2 nanoparticles on the physical and mechanical properties of wood particleboard. To this end that, panels were produced without the addition of SiO2 nanoparticles and with the addition of 4% by mass of the urea formaldehyde adhesive used for its production. The results showed that panels produced with the nanoparticles 42% reduction in thickness swelling of the panel. Therefore, the dimensional stability of the panels without decreasing mechanical properties,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thickness swelling; Wood-based products; Adhesives.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300289

PATH ERRORS IN SUGARCANE TRANSSHIPMENT TRAILERS
Provedor de dados: 70
Autores: Passalaqua,Bruna P.; Molin,José P.
ABSTRACT The need for accuracy in sugarcane machine traffic has boosted the adoption of automatic steering systems. These have been used in tractors pulling transhipment trailers. Such sets are long and articulated, which hinders their performance and benefits due to alignments in curved and laterally sloped paths. In this sense, this study aimed to quantify shifts in direction to which tractors and transshipment trailers are subjected while traveling straight and curved paths on different terrain slopes. We evaluated an internal transport system composed of one tractor and two three-axle transshipment trailers, equipped with GNSS receivers and RTK correction system, for their respective positioning. Pass-to-pass errors were evaluated by differences in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lateral slope; Automatic steering; Traffic control.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200223

PRODUCTIVITY OF IRRIGATED JAMBU UNDER SOIL-WATER STRESSES AND NITROGEN DOSES
Provedor de dados: 70
Autores: Aviz,William L. C. de; Lima Junior,Joaquim A. de; Silva,André L. P. da; Oliveira,Pedro D. de; Gama,Cândido M. P.
ABSTRACT Jambu (Acmella oleracea (L.) R.K.) is a short-cycle leafy vegetable from the Amazon region, which needs an adequate availability of water and nutrients, mainly nitrogen, to obtain a rapid mass increase. This research aimed to study the effect of different soil-water stresses and nitrogen doses on jambu cultivation in the state of Pará. The experiments were conducted at the Igarapé-Açu experimental farm of the Federal Rural University of Amazonia (UFRA). The Jamburana variety was used in a 10 × 10 cm spacing, using a randomized block design in a 4 × 4 factorial scheme with three replications. Each plot had a dimension of 0.4 × 0.5 m (0.2 m2), totaling 20 plants in 4 rows, but only the plants of the central rows were useful. Treatments consisted of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acmella oleracea (L.) R.K.; Tensiometry; Dripping; Nitrogen fertilization.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100016

HYBRID SYSTEM SIMULATION TO SUPPLY HEATED AIR TO A SOLAR FOOD DRYER
Provedor de dados: 70
Autores: Rodrigues,Letícia J.; Basso,Diego M.
ABSTRACT The intermittence of solar radiation, due to continuous rainy or cloudy days, is a limitation of simple and small solar dryers. These conditions often make them impossible to use. By including storage systems (thermal accumulation) and/or auxiliary energy sources, drying processes or dehydration can be conducted continuously, even during periods of low insolation. Therefore, the present work simulates and evaluates the thermal and energetic behavior of a hybrid system for heating the air that is directed to the dehydration chamber of a solar food dryer. The software selected for the simulation was TRNSYS. The simulated hybrid system consists of a flat plate solar collector and an arrangement of electrical resistors that guarantee the entry of air,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Electrical resistor arrangement; Flat plate solar collector; Auxiliary heating system; TRNSYS software.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200154

AN INDEX TO EVALUATE THE ACCEPTANCE OF SPECIALTY COFFEES IN CONSUMER GROUPS
Provedor de dados: 70
Autores: Resende,Mariana; Cirillo,Marcelo Â.; Borém,Flávio M.
ABSTRACT Numerous factors are related to the individual sensory perception of consumers, which makes it impossible to adapt a model that explains their behavior. In this context and given the scarcity of statistical indexes that evaluate preferences for specialty coffees, new statistical methods should be studied. To this end, our study aimed to create an index that measures the acceptance of specialty coffees. The index was built considering the fit of regression models as a function of principal component scores. Validation was done by significance tests, whose probabilities were obtained by bootstrapping, considering the main measures used in diagnosing outliers as weights, with application to real data from different consumer groups. The coffee...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Models; Quality; Bootstrap; Acaia; Bourbon.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500624

COMPARISON OF ARROWROOT (Maranta arundinacea) AND CASSAVA STARCH EXTRACTION IN SEPARATION, CONCENTRATION, AND PURIFICATION USING A ROTATING SIEVE UNDER WATER
Provedor de dados: 70
Autores: Fabiano,P. Branco; Marney,P. Cereda; Marco,H. Naka.
ABSTRACT Brazil is home to several plant species that exhibit potential for starch extraction. The arrowroot plant stands out owing to its South American origin. Arrowroot starch is especially important for fine confectionery, which is a high-value niche market. Thus, a small producer could benefit from the high prices of arrowroot starch. However, to have consistent production, the extraction should be performed using simple, safe, and inexpensive equipment. Starch extraction involves disintegration of the raw material under water, followed by the separation of fibrous bagasse from the starch–water suspension. This study presents an equipment design based on the concept of appropriate technology that is suitable for small producers to extract starch. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Efficiency; Yield; Machine project; Water consumption; Granulometry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100090

CAN BASAL CUTTING BLADE WEAR AFFECT SUGARCANE REGROWTH?
Provedor de dados: 70
Autores: Bernache,Leonardo; Tedesco-Oliveira,Danilo; Oliveira,Luan P. de; Corrêa,Ligia N.; Silva,Rouverson P. da.
ABSTRACT Sugarcane harvester cutting blade wear increases ratoon damages and losses, impairing sugarcane regrowth. This study aimed to evaluate the quality of basal cut using ratoon damage and loss indexes and correlating them with effects on sugarcane regrowth. Harvest parameters such as plant height and position, damage and loss indexes, and stem length were evaluated every 30 min, following statistical process control (SPC) assumptions. Blade wear was examined during three harvesting shifts (0-8 h, 8-16 h, and 16-24 h). Sugarcane regrowth was assessed by counting number of tillers and measuring plant height and stem diameter. The second harvesting shift showed better quality in terms of damage and loss indexes, and plant height and stem diameter....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanized harvesting; Sugarcane; SPC; Harvester.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100053

IMPORTANCE OF CROP PRODUCTIVITY AND EQUIPMENT LIFETIME IN THE STRATEGIC AND TACTICAL MANAGEMENT OF SUGARCANE HARVESTERS
Provedor de dados: 70
Autores: Banchi,Ângelo D.; Garcia,Angel P.; Albiero,Daniel; Galvão,Cezário B.; Favarin,Luis G. A.
ABSTRACT Recently, Brazilian agriculture and the mechanization process have been improved and developed, particularly in sugarcane cultivation. The developed processes should adopt suitable management practices in terms of the technical, economic, and operational logistical aspects. As a management tool, the present study aimed to measure the impact of the accumulated use of harvesters (life in h) and agricultural productivity (Mg · ha−1) on the harvesting operational capacity (HOC). Mathematical modeling was performed on data obtained from eight sugarcane production units, and equations corresponding to the HOC as a function of the harvester's life and the crop agricultural productivity were developed. The equation that best represented the phenomenon was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Performance indicators; Maintenance management; Harvesting operational capacity; Agricultural mechanization.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500601

THE ROLE OF CHAR FORMATION IN EQUILIBRIUM MODELING OF GASIFICATION PROCESSES
Provedor de dados: 70
Autores: Ramos,Vinícius F.; Costa Junior,Esly F. da; Costa,Andréa O. S. da.
ABSTRACT This work aims to develop and validate a model based on chemical equilibrium to predict the composition of syngas produced by gasification of woody biomass (sawdust). The model uses Gibbs Energy minimization to evaluate the composition of the system in chemical equilibrium. The results are validated by comparison between experimental data from a gasification experiment and those of other similar models in the literature. The study shows good agreement among experimental results and elucidates the role of solid unburned carbon in such systems, which is present in considerable amount. It can be concluded that equilibrium models can be used to predict carbon conversion in gasification systems.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Char formation; Gasification; Gibbs energy minimization; Modeling.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200139

INCREASED ENERGY COGENERATION IN THE SUGAR-ENERGY SECTOR WITH THE USE OF SUGARCANE STRAW, ELECTRIFICATION OF DRIVES, AND HIGH-DRAINAGE ROLLERS IN THE EXTRACTION
Provedor de dados: 70
Autores: Santos,Paulo S. B. dos; Ramos,Ricardo A. V.
ABSTRACT The sugar-energy sector stands out in the production of electrical energy in the Brazilian energy matrix. The updating of Law 9,427 allowed increasing the limit of power injected in the transmission or distribution systems of existing projects from 30 to 50 MW, encouraging studies of expansion and/or implementation of new cogeneration projects. This study analyzed technologies to enhance energy cogeneration in a plant that sells about 27 MW of surplus power. For this, were studied the use of straw, electrification of drives by steam turbines, and high-drainage rollers (lotus mill roller), which allows reducing bagasse moisture, increasing its lower calorific value (LCV) and, consequently, electrical energy generation. Mass and energy balances in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioelectricity; Biomass; Combustion; Calorific value; Numerical simulation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200249

DETERMINATION OF SOIL VOLUME BY PLANIALTIMETRIC SURVEY METHODS
Provedor de dados: 70
Autores: Vanzela,Luiz S.; Araujo Junior,Osvaldo; Lima,Ronaldo C.
ABSTRACT Considering the importance of topographic surveys to determine soil volumes and study efficient and accessible alternatives for this operation, this study aimed to analyze methods and respective equipment for planialtimetric surveys to determine soil volume. An experimental grid was installed in an area locate in Fernandópolis, SP, Brazil, in which quotas were measured by geometric leveling (standard method), trigonometric leveling, leveling with receivers of the Global Navigation Satellite System (GNSS) by relative (frequencies L1/L2) and absolute positioning (code C/A) and extraction of altitudes in digital terrain model from SRTM and ASTER images. In comparison to geometric leveling, trigonometric leveling was the most accurate in determining...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: GNSS; Geometric leveling; Trigonometric leveling; Geomatics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200207

O envelhecer no meio rural: os idosos e idosas do assentamento Milton Santos – Americana – SP
Provedor de dados: 194
Autores: Simonato, Danitielle Cineli; Bergamasco, Sonia Maria Pessoa Pereira.
O objetivo do presente trabalho foi proceder a uma leitura do processo de envelhecimento dos idosos rurais em um Assentamento de Reforma Agrária do município de Americana – SP. A pesquisa foi realizada com oito (8) idosos (as) e foi ancorada numa abordagem qualitativa com o uso da entrevista semiestruturada amparada por um roteiro que versou sobre a origem dos idosos, as condições de vida, a aposentadoria, a renda, os arranjos familiares, o grau de escolaridade e o acesso à saúde. Para além, pesquisou-se questões mais subjetivas como as estratégias de vida e luta pela terra e a qualidade de vida no meio rural. O estudo foi realizado entre os meses de março a maio de 2015. A análise dos resultados permitiu observar que a aposentadoria, e o acesso aos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reforma agrária; Envelhecimento; População rural.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/37898

Evolução da política de crédito rural no Brasil: uma análise histórica
Provedor de dados: 194
Autores: Dornelas, Larissa Naves de Deus.
Este artigo tem como objetivo analisar a evolução da política de crédito rural no Brasil desde a criação do Sistema Nacional de Crédito Rural (SNCR), em 1965, até a atualidade. Parte-se da ideia de que a política de crédito subsidiado aos agricultores constitui importante e forte instrumento de apoio ao setor, sobretudo num contexto em que se observa o avanço das relações capitalistas também no campo. Neste sentido, o artigo remonta à criação do SNCR, em que se identifica uma clara estratégia de desenvolvimento agropecuário por parte do governo, seu desenvolvimento e crise, além de ressaltar o estado atual da política de crédito rural brasileira. Para tanto, utilizará da revisão bibliográfica como metodologia, percorrendo a bibliografia condizente com o...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desenvolvimento rural; Política de crédito rural; Sistema Nacional de Crédito Rural.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/37583

Número Completo jul./set. 2019.‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬ (PDF com Capa e Artigos)
Provedor de dados: 194
Autores: Rural, Extensão.
Número Completo jul./set. 2019.‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬ (PDF com Capa e Artigos)
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/42352

Interfaces entre alimentação escolar e agricultura familiar: revisão bibliométrica e de conteúdo bibliográfico sobre a experiência brasileira
Provedor de dados: 194
Autores: Silva, Sandro Pereira.
Este estudo aborda a produção científica sobre a relação entre Estado, alimentação escolar e agricultura familiar no Brasil, antes (a partir de 1974) e após a reformulação do Programa Nacional de Alimentação Escolar (PNAE) em 2009. Para isso, foi realizado um levantamento bibliométrico no intuito de traçar um panorama quantitativo das pesquisas de interesse, apresentadas quanto a seus períodos de publicação, áreas de conhecimento, canais de divulgação, abordagens metodológicas e palavras-chave mais utilizadas. Posteriormente, realizou-se uma categorização temática de todos os trabalhos selecionados, visando identificar os principais assuntos enfatizados, para então destacar as evidências gerais encontradas e sistematizadas a partir de uma revisão...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alimentação escolar; Agricultura familiar; Compras públicas; Segurança alimentar e nutricional; PNAE.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/63660

Conexões on-line e off-line em Vista Alegre: análise das relações sociais de uma comunidade rural
Provedor de dados: 194
Autores: Andrade, Danieli Barbosa de; Braga, Gustavo Bastos.
A dinâmica das relações sociais das comunidades rurais brasileiras vem sofrendo impacto em sua estrutura em razão da utilização das mídias sociais. Isso pode ser observado na comunidade rural Vista Alegre, localizada no município de Rio Casca, Minas Gerais, Brasil, que faz uso dessas mídias sociais na comunicação. Portanto, a finalidade deste artigo é comparar as redes face a face e a de contatos via aplicativo de mensagens, através da estrutura dessas redes. Para tanto, elucidar-se-á as características da utilização da tecnologia de comunicação entre os atores na forma de se relacionar no meio rural. Como resultado, observou-se que na rede on-line os atores mais jovens ocupam papéis de notoriedade, já que possuem maior probabilidade de receber e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aplicativo de mensagens; Comunicação rural; Redes.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/41617

O perfil dos produtores de arroz do Vale do Rio Pardo-RS e o processo de gestão rural
Provedor de dados: 194
Autores: Tatsch, Ricardo; Deponti, Cidonea Machado.
A dinâmica da globalização e a incorporação de novas tecnologias no meio rural obrigaram os produtores a se adequarem às novas exigências, entre elas, a inclusão de práticas contábeis e gerenciais, fundamentais para se conseguir eficiência nas propriedades rurais. Com base nessa premissa, pretendeu-se, caracterizar o perfil dos produtores de arroz do Vale do Rio Pardo-RS e verificar o uso de instrumentos contábeis para controle da atividade. Buscou-se, também, demonstrar a importância do cultivo do arroz, como uma alternativa de produção em uma região em que o foco está no tabaco, trazendo informações relevantes sobre a área cultivada, a produção e a produtividade das lavouras em níveis nacional, estadual e regional. Trata-se de uma pesquisa exploratória,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contabilidade rural; Gestão rural; Desenvolvimento regional; Produtor de arroz.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/43000

Número Completo jul./set. 2020. (PDF com Capa e Artigos)
Provedor de dados: 194
Autores: Rural, Extensão.
Número Completo jul./set. 2020. (PDF com Capa e Artigos)
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/65074

Assistência Técnica e Extensão Rural (ATER) no Território rural Sertão Central Cabugi e Litoral Norte (RN): o desafio da adequação sócio-técnica
Provedor de dados: 194
Autores: Nunes, Emanoel Márcio; Cruz, Mônica Soares; Silva, Vívian Menezes da.
O objetivo é analisar as ações de Assistência Técnica e Extensão Rural (ATER) no Território Rural Sertão Central Cabugi e Litoral Norte (RN), demonstrando as limitações de integração com o crédito e a organização coletiva, e evidenciando a necessidade da adequação sócio-técnica para o desenvolvimento rural. A metodologia utilizada foi a do “Diagrama de Venn”, e a técnica utilizada foi a realização de visitas aos dez municípios que compõem o Território. Os resultados se basearam nos levantamentos e no roteiro de entrevistas com prestadores de ATER, associações e atores dos dez municípios do Território, que, de forma participativa, avaliaram as ações de ATER. Concluindo, percebe-se a necessidade de um modelo de ATER capaz de promover maior integração com o...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ATER; Desenvolvimento territorial; Gestão; Sustentabilidade.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/43573

Número Completo abr./jun. 2020.‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬ (PDF com Capa e Artigos)
Provedor de dados: 194
Autores: Rural, Extensão.
Número Completo abr./jun. 2020.‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬ (PDF com Capa e Artigos)
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Extensão Rural.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/63713

A superexploração da força de trabalho rural no setor produtivo da soja em Uruçuí-PI
Provedor de dados: 194
Autores: Cunha, Francisco Eduardo de Oliveira; Júnior, Sérgio Gonçalves dos Santos.
A expansão do agronegócio no cerrado piauiense ocorre de forma intensa e voraz, alterando a velocidade de interação do ser humano com a natureza, desrespeitando o tempo biológico desta, ajustando-a à impaciência da reprodução do capital. Com efeito, severas são as implicações sobre o trabalhador e os recursos naturais. Diante disso, o presente trabalho tem como objetivo elucidar a categoria superexploração da força de trabalho rural no setor produtivo da soja em Uruçuí-PI, com vistas a provocar reflexões acerca da realidade recente da força de trabalho rural piauiense, no intuito de compreender o seu papel na dinâmica produtiva da economia global e suas implicações no mercado de trabalho nacional e mundial. Tem-se como método de investigação e análise a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agronegócio; Economia piauiense; Trabalhador rural; Superexploração da força de trabalho.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/45254

As possibilidades da extensão rural pelas vias radiofônicas: uma análise do Programa Prosa Rural
Provedor de dados: 194
Autores: Silva, Maria Inês Gonçalves da; Oliveira, Marcelo Leles Romarco de.
Esse artigo busca refletir sobre o programa radiofônico Prosa Rural, produzido pela Empresa Brasileira de Pesquisa Agropecuária (Embrapa). As discussões perpassam pela análise do programa como ferramenta auxiliar junto aos serviços de Assistência Técnica e Extensão Rural (Ater), considerando que uma das atribuições do programa é atuar na promoção de informação e conhecimento no meio rural. A partir da análise documental e da escuta do programa foi possível identificar aspectos positivos no que diz respeito ao paralelo estabelecido entre o programa e os serviços de Ater: a escolha pelo rádio como instrumento de veiculação e o processo inicial participativo para construção do programa. Apesar disso, ao final do estudo, conclui-se que o programa não explora...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comunicação Rural; Extensão rural; Rádio.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/35930

A planificação ecológica como um instrumento para promover de forma democrática e eficiente a sustentabilidade da agricultura
Provedor de dados: 194
Autores: Neto, Benedito Silva.
O artigo tem como objetivo demonstrar que uma planificação ecológica pode se constituir em um instrumento para uma promoção democrática e eficiente da sustentabilidade da agricultura. O referencial teórico adotado no artigo é baseado na obra de Györg Lukács dedicada a ontologia do ser social. Este referencial fundamentou a elaboração de um modelo de programação linear, cujas características são discutidas por meio da análise da sua estrutura formal e de exemplos numéricos. O pressuposto sobre o qual se baseia a formulação do modelo, de que as riquezas sociais, na forma de produtos para consumo final, meios de produção e recursos naturais, são variáveis exógenas que devem ser definidas por decisões políticas, permite demonstrar que o modelo é compatível com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sustentabilidade; Planificação democrática; Modelo de planificação.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/42985

Crítica ao modelo de desenvolvimento rural de Olhos D’água, município de Uruguaiana (RS): a voz dos agricultores
Provedor de dados: 194
Autores: Goñi, Liana Mendonça; Hernández, Jaime Morales.
O objetivo do artigo é analisar o modelo de desenvolvimento rural do distrito Olhos D’Água, bem como os diferentes agir e reagir, práticas e discursos dos agricultores e pecuaristas familiares da região de Olhos D’água. Trata-se de um estudo de caso, com abordagem qualitativa e exploratória. Para tanto, a pesquisa consiste na união de duas perspectivas metodológicas: perspectiva etnográfica ator-rede Latour e Woolgar (1997), e a perspectiva orientada desde os atores de Long (2007). A partir das análises discursivas e documentais foi possível ressaltar as diferentes agriculturas, os diferentes graus de mercantilização e as diferentes racionalidades e modos de vidas no âmbito rural da região. Ao final do estudo conclui-se que a solução ao crescimento...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultores familiares; Desenvolvimento; Diferentes agriculturas; Pecuaristas; Uruguaiana.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/50294

Aproximación al concepto de conjuntos de saberes populares ganaderos en Uruguay
Provedor de dados: 194
Autores: Coronel, Maximiliano Piedracueva.
La extensión rural y agraria ha rondado siempre el debate en cuanto a cuál es la mejor forma de compartir, difundir, extender o construir un conocimiento validado que permita una mejora en las condiciones de vida de la población. En el presente trabajo se aborda el análisis de las prácticas de extensión desde una mirada epistemológica. A partir de una revisión teórica y de documentos con relatos empíricos se propone una matriz de análisis en base al concepto de conjunto de saberes, con ello se intenta romper con la dicotomía de saber popular-saber científico. El objetivo es identificar de forma aproximada algunos criterios de validación en el conjunto de saberes populares de la ganadería familiar del norte del Uruguay.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conjunto de saberes; Extensión rural; Epistemología.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/39547

Número Completo jan./mar. 2020.‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬ (PDF com Capa e Artigos)
Provedor de dados: 194
Autores: Rural, Extensão.
Número Completo jan./mar. 2020.‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬ (PDF com Capa e Artigos)
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/48265

O fundo distrital de desenvolvimento e a agricultura: o caso de estudo das comunidades no distrito de Chibuto, Moçambique
Provedor de dados: 194
Autores: Rosário, Nelson Maria; Kühn, Daniela Dias.
O presente trabalho analisa a influência do Fundo Distrital de Desenvolvimento (FDD) nas comunidades do distrito de Chibuto. A análise foi feita aos mutuários que se beneficiaram do fundo para desenvolver a atividade agrícola. O estudo fez uma breve análise da influência do acesso ao fundo pelos mutuários que o utilizaram para a produção agrícola, buscando o desenvolvimento das comunidades locais. O estudo combinou a abordagem qualitativa e quantitativa (com o emprego de questionários e entrevistas). Os resultados mostram que, com o financiamento obtido pelos mutuários, houve uma melhoria considerável nos índices de produção e produtividade, assistiu-se a uma significativa melhora nas condições básicas na comunidade.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fundo Distrital de Desenvolvimento (FDD); Agricultura e desenvolvimento; Moçambique.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/37099

Produção para o autoconsumo e compra de alimentos no Sul da Bahia: o caso do assentamento Bom Jesus
Provedor de dados: 194
Autores: Nascimento, Valtemir Santos; Thies, Vanderlei Franck.
A produção de alimentos para o próprio consumo integra de forma recorrente as estratégias de reprodução social das famílias agricultoras, o que contribui para a segurança alimentar e nutricional, a qualidade de vida e a ampliação da renda. O avanço das formas de agricultura engendradas pelos impérios alimentares têm impulsionado a expansão da produção comercial especializada, tensionado a produção para o autoconsumo. O presente estudo tem por objetivo mensurar o valor da produção agropecuária para venda e autoconsumo e dos gastos com a compra de alimentos, procurando identificar sua contribuição e seu impacto na renda das famílias agricultoras. Através de estudo de caso, realizado junto a famílias assentadas no Baixo Sul da Bahia, evidenciou-se que a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultores; Alimentação; Reforma agrária; Renda.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/47100

Enraizamento, circuitos curtos e combate à pobreza rural no semiárido nordestino: uma experiência de desenvolvimento rural no Quilombo Tabacaria
Provedor de dados: 194
Autores: Morais, João Rafael Gomes de; Magalhães, Luíz Fernando Barbosa Gomes.
O objetivo do artigo é analisar o processo de desenvolvimento local do Quilombo Tabacaria sob a ótica da constituição de circuitos curtos agroalimentares através do enraizamento de negócios rurais. Parte-se da ideia de que essa abordagem pode contribuir tanto no combate à pobreza rural, quanto na valorização do patrimônio socioambiental do semiárido nordestino. Para tanto, utilizaram-se métodos de pesquisa-ação com a finalidade de elaborar e executar um plano de ação participativo. Entre os resultados da pesquisa, é possível afirmar que a constituição de negócios em comunidades rurais empobrecidas é diretamente dependente da tecitura de relações sociais recíprocas e solidárias entre seus membros, sendo, muitas vezes, condição sine qua non para a criação e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Circuitos curtos; Desenvolvimento local; Enraizamento.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/41255

Tecnologia social no contexto da agricultura familiar: análise da reaplicação no território Cantuquiriguaçu - Paraná
Provedor de dados: 194
Autores: Carvalho, Elenice da Silva; Lago, Sandra Mara Stocker.
Este artigo tem como objetivo analisar os resultados da reaplicação da tecnologia social denominada “Produção Agroecológica sob o cultivo protegido (estufa), Pomar diversificado e Fonte”, com os agricultores familiares nos municípios de Pinhão e Reserva do Iguaçu, no território Cantuquiriguaçu, estado do Paraná. Trata-se de um estudo de caso, com abordagem qualitativa. A pesquisa confirmou que a tecnologia social atende a todos os princípios e características referenciados pela literatura como: reaplicabilidade, transformação social, desenvolvimento participativo, contextualização local, simplicidade, baixo custo e viabilização de empreendimentos populares. As análises evidenciaram também, maior proporção de benefícios resultantes da reaplicação da...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atores sociais; Agricultura familiar; Desenvolvimento sustentável; Tecnologia social; Sustentabilidade.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/38505

Número Completo out./dez. 2020. (PDF com Capa e Artigos)
Provedor de dados: 194
Autores: Rural, Extensão.
Número Completo out./dez. 2020. (PDF com Capa e Artigos)
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/66278

Viabilidade econômica da suinocultura no sistema wean to finish em São José do Rio Pardo - SP
Provedor de dados: 194
Autores: Evangelista, Mariane Zabotto; Pereira, Rafaela.
Este trabalho analisou a viabilidade econômica da produção Wean to Finish de suínos em São José do Rio Pardo nas produções independente e integrada. Foram levantados os custos fixos e variáveis anuais de manejo e manutenção de instalações, despesas administrativas e fiscais e custos da construção hipotética de uma instalação de 1.000 m2 em uma propriedade com granjas já em funcionamento. O plantel projetado foi de 1.000 animais por lote, sendo produzidos dois lotes anuais. Foram construídos dois fluxos de caixa, um para produção independente e outro para produção integrada, ambos para o período de 21 anos. O valor presente líquido (VPL) apresentou viabilidade apenas para a produção integrada, com R$ 634.055,44 de lucro. A taxa interna de retorno (TIR) para...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Custos de produção; Produção integrada; Suínos.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/35482

Agroecologia e turismo: reflexões e saberes transdisciplinares para o desenvolvimento sustentável
Provedor de dados: 194
Autores: Ceretta, Caroline Ciliane; Del Puerto, Charlene Brum; Maysonnave, Greicy Sofia.
A agroecologia e o turismo são duas áreas complexas que influenciam e são influenciadas por diferentes áreas do conhecimento, principalmente quando a discussão é cercada por iniciativas em busca da sustentabilidade. Nessa perspectiva, o artigo objetiva analisar o aporte teórico que aproxima a agroecologia do turismo a partir do olhar da transdisciplinaridade que os retroalimenta. Especificamente, busca-se refletir sobre o papel do turismo e da agroecologia enquanto cúmplices transdisciplinares dos diversos saberes para sua prática e contextualizar as perspectivas do desenvolvimento sustentável do turismo, bem como discutir o sentido da agroecologia no âmbito do turismo. O artigo se caracteriza como sendo de caráter qualitativo e exploratório com a coleta...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agroecologia; Ambiente; Sustentabilidade; Transdisciplinaridade; Turismo.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/48363

Queijo artesanal serrano nos Campos de Cima da Serra (RS): análise da dimensão institucional de um sistema agroalimentar localizado
Provedor de dados: 194
Autores: Ceolin, Lilian Varini; Silva, Leonardo Alvim Beroldt da; Ambrosini, Larissa Bueno.
O Queijo Artesanal Serrano (QAS) é produzido há mais de 200 anos nos Campos de Cima da Serra, no sul do Brasil, de modo tradicional, por produtores familiares, a partir de leite cru. O QAS é um produto de relevância histórica, social e econômica para a região. Sua produção, entretanto, enfrenta dificuldades com relação aos marcos legais. O objetivo desse estudo é analisar o ambiente institucional de produção do QAS sob a perspectiva dos Sistemas Agroalimentares Localizados (SIAL). Através de aplicação de roteiros semiestruturados, foram avaliadas as relações interinstitucionais e alterações ocorridas nos últimos 10 anos. Existe uma multiplicidade de atores envolvidos, sendo que a apresentação da mobilização coletiva em torno do produto leva a definição de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Instituições; Produtos artesanais; Produtos tradicionais.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/40117

Da lavoura para a máquina de costura: a inserção dos homens no Polo de Confecções do Agreste de Pernambuco
Provedor de dados: 194
Autores: Milanês, Renata.
Este artigo tem como foco analisar as relações de trabalho no âmbito das atividades produtivas têxteis desenvolvidas na zona rural no Polo de Confecções do Agreste de Pernambuco. Tomando como base empírica a inserção dos homens no mercado de trabalho, pretende-se realizar uma análise etnográfica com os/as agricultores(as) e/ou costureiros(as), observando também como o trabalho pluriativo da costura tem interferido na garantia da reprodução social das famílias camponesas. Este trabalho procura oferecer uma análise antropológica e etnográfica, a partir das ações e valores das pessoas que moram e trabalham nas suas próprias residências. A pesquisa de campo que orientou essas reflexões foi fruto de uma dissertação de Mestrado, na qual foram realizadas trinta...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultura; Costura; Pluriatividade; Polo de confecções do Agreste de Pernambuco.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/38069

As relações entre valor agregado e riqueza na Análise-diagnóstico de sistemas agrários
Provedor de dados: 194
Autores: Neto, Benedito Silva.
A Análise-Diagnóstico de Sistemas Agrários (ADSA) é um método de estudo empregado na extensão rural e em pesquisas sobre dinâmicas locais da agricultura. Neste método normalmente é considerado que a agregação de valor é equivalente à geração de riqueza. O objetivo deste artigo é analisar os problemas provocados pela consideração do valor agregado como um indicador da produção de riquezas na ADSA. Uma demonstração formal de que valor agregado e riqueza são distintos é realizada a partir de um modelo de programação linear, com base no materialismo histórico. Esta demonstração é ilustrada por um exemplo numérico e, após, as relações entre valor agregado e riqueza são discutidas a partir da análise de alguns trabalhos que empregam a ADSA. Conclui-se que uma...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cálculo econômico; Extensão rural; Sustentabilidade; Teoria do valor.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/61480

Capital humano rural e produtividade agrícola: análise espacial para a Região Sul do Brasil
Provedor de dados: 194
Autores: Junior, Amarildo de Paula; Máximo, George Lucas.
O aumento da capacidade técnica, via educação, eleva a produtividade no trabalho, independente de qual seja o setor em que o indivíduo esteja empregado, conforme Schultz (1961). Diante disso, o presente artigo tem como objetivo analisar a correlação espacial entre o capital humano rural e a produtividade de produtos agrícolas que estão entre os mais cultivados na região Sul: milho, trigo e soja. Os dados utilizados neste estudo são do Censo Agropecuário e da Pesquisa Agrícola Municipal (PAM), ambos para o ano de 2017. A abordagem estatística aplicada neste estudo é a de Análise Exploratória de Dados Espaciais (AEDE), em que é possível analisar as correlações entre variáveis no espaço. Os resultados encontrados apontam para uma correlação global positiva...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capital humano rural; Produtividade agrícola; Região sul.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/41749

Produtos da Agricultura Familiar (AF) nos estados do Rio de Janeiro e Espírito Santo: aplicação da verba do Programa Nacional de Alimentação Escolar (PNAE)
Provedor de dados: 194
Autores: Gonçalves, Edira Castello Branco de Andrade; Gama, Amauri Corrêa; Medina, Tatiana de Souza.
É estabelecido, que no mínimo 30% dos valores repassados para a alimentação escolar, deve ser aplicado na aquisição de produtos oriundos da agricultura familiar (AF). Com intuito de identificar os agricultores familiares brasileiros criou–se a Declaração de Aptidão ao Programa Nacional de Fortalecimento da Agricultura Familiar (DAP), favorecendo na comercialização e participação na oferta da alimentação escolar. O objetivo deste estudo é avaliar a aplicação mínima do PNAE na aquisição de produtos da AF nos estados do Rio de Janeiro e Espírito Santo. Foi feito levantamento da aplicação do PNAE nas regiões intermediárias dos estados citados (2011-2017). Percebe-se predominância absoluta de DAP física em relação a DAP jurídica em ambos os estados, não...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultura familiar; Política pública alimentação escolar.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/37934

Panorama das dissertações e teses defendidas no Programa de Pós-Graduação em Extensão Rural da Universidade Federal de Viçosa (1968-2017)
Provedor de dados: 194
Autores: Ribeiro, Isadora Moreira; Doula, Sheila Maria; Oliveira, Marcelo Leles Romarco de.
O estudo apresenta um panorama das dissertações e teses defendidas no Programa de Pós-graduação em Extensão Rural da Universidade Federal de Viçosa, o mais antigo do Brasil, que completou 50 anos de implantação em 2018. Metodologicamente, utiliza-se a análise documental, classificando qualitativamente e quantitativamente os principais termos presentes nos títulos dos 538 trabalhos defendidos entre 1968 e 2017. Os resultados mostram o deslocamento de um projeto difusionista e produtivista de Extensão Rural para as reflexões acerca das consequências desse modelo, o que se acentua com a institucionalização da PNATER, em 2003. Com base no histórico institucional da Extensão Rural no Brasil, conclui-se que há uma inter-relação entre as pesquisas acadêmicas e as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estado da arte; Extensão rural; Interdisciplinaridade.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/36519

Transição Agroecológica e o papel da Extensão Rural
Provedor de dados: 194
Autores: Caporal, Francisco Roberto.
Este texto situa o papel da extensão rural no marco de novas iniciativas de desenvolvimento rural que devem ser orientadas pelo imperativo socioambiental. Destaca-se que os processos de transição agroecológica devem sustentar-se nos conceitos e princípios da Agroecologia, razão pela qual buscou-se trazer uma aproximação a esses conceitos, bem como sobre as abordagens que tratam dos níveis de transição que devem orientar as ações dos extensionistas, agricultores ou consumidores envolvidos em processos. Neste sentido, considera-se que os processos de transição agroecológica requerem o apoio de uma Extensão Rural Agroecológica, que supere o modelo difusionista clássico do extensionismo rural e no qual o extensionista além do seu papel como técnico deve atuar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agroecologia; Desenvolvimento rural; Extensão rural Agroecológica; Extensão rural; Transição social Agroecológica.
Ano: 2020
URL: http://periodicos.ufsm.br/extensaorural/article/view/38420

A comparison between SOLiD 5500XLand Ion Torrent PGM-derived miRNA expression profiles in two breast cell lines
Provedor de dados: 74
Autores: Branco,Gabriela Pereira; Valieris,Renan; Povoa,Lucas Venezian; Araújo,Luiza Ferreira de; Fernandes,Gustavo Ribeiro; Souza,Jorge Estefano Santana de; Amorim,Maria Galli de; Ferreira,Elisa Napolitano e; Silva,Israel Tojal da; Nunes,Diana Noronha; Dias-Neto,Emmanuel.
Abstract Next-generation sequencing (NGS) platforms allow the analysis of hundreds of millions of molecules in a single sequencing run, revolutionizing many research areas. NGS-based microRNA studies enable expression quantification in unprecedented scale without the limitations of closed-platforms. Yet, whereas a massive amount of data produced by these platforms is available, comparisons of quantification/discovery capabilities between platforms are still lacking. Here we compare two NGS-platforms: SOLiD and PGM, by evaluating their microRNA identification/quantification capabilities using two breast-derived cell-lines. A high expression correlation (R2 &gt; 0.9) was achieved, encompassing 97% of the miRNAs, and the few discrepancies in miRNA counts were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Next-generation sequencing (NGS); MiRNA expression profiles; SOLiD; PGM.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400802

Phylogenetic niche conservatism and plant diversification in South American subtropical grasslands along multiple climatic dimensions
Provedor de dados: 74
Autores: Barros,Michel J.F.; Silva-Arias,Gustavo A.; Segatto,Ana Lúcia Anversa; Reck-Kortmann,Maikel; Fregonezi,Jeferson N.; Diniz-Filho,José Alexandre F.; Freitas,Loreta B.
Abstract Phylogenetic niche conservatism can be investigated at multiple scales on an explicit geographical context. Haplotype-based comparative analyses of lineages occupying the same region, and thus subjected to similar environmental factors, allow decoupling shared evolutionary and ecological patterns, as well as multiple dimensions of adaptive diversification. Here we aimed to assess the role of environmental drivers on diversification of subtropical grassland, based on haplotypic diversity of two plant genera. We sampled two closely related and co-distributed grassland plant genera, Petunia and Calibrachoa, across their entire distribution area. Eigenvectors extracted from pairwise distances based on chloroplast DNA haplotypes were used to fit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Altitude; Climatic changes; Molecular diversification; Phylogenetic niche conservatism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400602

Identification of environmental and genetic factors that influence warfarin time in therapeutic range
Provedor de dados: 74
Autores: Botton,Mariana R.; Viola,Patrícia P.; Meireles,Mariana R.; Bruxel,Estela M.; Zuchinali,Priccila; Bandinelli,Eliane; Rohde,Luis E.; Leiria,Tiago L. L.; Salamoni,Joyce Y. Y.; Garbin,Arthur P.; Hutz,Mara H.
Abstract Warfarin is an oral anticoagulant prescribed to prevent and treat thromboembolic disorders. It has a narrow therapeutic window and must have its effect controlled. Prothrombin test, expressed in INR value, is used for dose management. Time in therapeutic range (TTR) is an important outcome of quality control of anticoagulation therapy and is influenced by several factors. The aim of this study was to identify genetic, demographic, and clinical factors that can potentially influence TTR. In total,422 patients using warfarin were investigated. Glibenclamide co-medication and presence of CYP2C9*2 and/or *3 alleles were associated with higher TTR, while amiodarone, acetaminophen and verapamil co-medication were associated with lower TTR. Our data...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CYP2C9; VKORC1; ASPH; TTR; Warfarin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000300302

Metabarcoding reveals that a non-nutritive sweetener and sucrose yield similar gut microbiota patterns in Wistar rats
Provedor de dados: 74
Autores: Falcon,Tiago; Foletto,Kelly Carraro; Siebert,Marina; Pinto,Denise Entrudo; Andrades,Michael; Bertoluci,Marcello Casaccia.
Abstract The effects of non-nutritive sweeteners (NNS) on the gut microbiota are an area of increasing research interest due to their potential influence on weight gain, insulin resistance, and inflammation. Studies have shown that mice and rats fed saccharin develop weight gain and metabolic alterations, possibly related to changes in gut microbiota. Here, we hypothesized that chronic exposure to a commercial NNS would change the gut microbiota composition in Wistar rats when compared to sucrose exposure. To test this hypothesis, Wistar rats were fed either NNS- or sucrose-supplemented yogurt for 17 weeks alongside standard chow (ad libitum). The gut microbiome was assessed by 16S rDNA deep sequencing. Assembly and quantification were conducted using the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 16S rDNA; Deep sequencing; Saccharin; Cyclamate; Yogurt.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100805

Persistent double strand break accumulation does not precede cell death in an Olaparib-sensitive BRCA-deficient colorectal cancer cell model
Provedor de dados: 74
Autores: Paviolo,Natalia Soledad; Vega,María Belén de la; Pansa,María Florencia; García,Iris Alejandra; Calzetta,Nicolás Luis; Soria,Gastón; Gottifredi,Vanesa.
Abstract The poly (adenosine diphosphate (ADP)-ribosyl) polymerase inhibitors (PARPi) selectively kill cancer cells with BRCA1 or BRCA2 (BRCA)-mutations. It has been proposed that cell death induction after PARPi depends on unrepaired double strand breaks (DSBs) that accumulate due to the homologous recombination deficiency of BRCA-mutated cells. Such accumulation of DSBs is inferred mainly from the high levels of DNA damage markers like phosphorylated histone H2AX. Herein, we developed a model of isogenic cell lines to show that depletion of BRCA causes PARPi-triggered cell death, replication stress (phosphorylated-H2AX and 53BP1 foci), and genomic instability. However, persistent DSBs accumulation was not detected under the same experimental conditions....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: GammaH2AX; Alternative end joining; Non-homologous end joining; Homologous recombination; PARP.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200303

Combined use of mitochondrial and nuclear genetic markers further reveal immature marine turtle hybrids along the South Western Atlantic
Provedor de dados: 74
Autores: Brito,Cíntia; Vilaça,Sibelle Torres; Lacerda,Ana Luzia; Maggioni,Rodrigo; Marcovaldi,Maria Ângela; Vélez-Rubio,Gabriela; Proietti,Maíra Carneiro.
Abstract Marine turtle hybridization is usually sporadic and involves reports of only a few individuals; however, Brazilian populations have high hybridization rates. Here we investigated the presence of hybrids in morphologically identified immature hawksbills (Eretmochelys imbricata) along the South Western Atlantic (SWA). We sequenced one mitochondrial (D-Loop) and three nuclear DNA (RAG1, RAG2, and CMOS) markers to better understand the patterns and characteristics of hybrids. We identified 22 hybrids (n = 270), 11 of them at the extreme South of the SWA. Uruguay had the highest hybrid frequency in the SWA (~37.5%) followed by southern Brazil with 30%. These are common areas for loggerheads (Caretta caretta) but uncommon for hawksbills, and these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hybridization; Cheloniidae; Genetic markers; Hybrid distribution; Conservation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400704

The combined risk effect among BIN1, CLU, and APOE genes in Alzheimer’s disease
Provedor de dados: 74
Autores: Santos,Lígia Ramos dos; Almeida,Jucimara Ferreira Figueiredo; Pimassoni,Lúcia Helena Sagrillo; Morelato,Renato Lírio; Paula,Flavia de.
Abstract Genome-wide associations studies (GWAS) are detecting new variants associated with late-onset of Alzheimer’s disease (LOAD), a multifactorial neurodegenerative disorder. The variants rs744373 BIN1, rs11136000 CLU and rs3764650 ABCA7 uncovered by GWAS led to different AD pathways, such as metabolism, trafficking and endocytosis of lipids and inflammation. However, most of the association studies did not replicate these variants with significance. This could be due to a small power effect evident when these variants are tested independently with LOAD. Therefore, we aimed to investigate whether the combination of different variants would additively modify the risk of association with LOAD that is observed in GWAS. We performed an association study...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: GWAS variants; APOE; CLU; BIN1; ABCA7.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100113

ADP-ribosylation: from molecular mechanisms to human disease
Provedor de dados: 74
Autores: Hoch,Nicolas C.; Polo,Luis M.
Abstract Post-translational modification of proteins by ADP-ribosylation, catalysed by poly (ADP-ribose) polymerases (PARPs) using NAD+ as a substrate, plays central roles in DNA damage signalling and repair, modulates a range of cellular signalling cascades and initiates programmed cell death by parthanatos. Here, we present mechanistic aspects of ADP-ribose modification, PARP activation and the cellular functions of ADP-ribose signalling, and discuss how this knowledge is uncovering therapeutic avenues for the treatment of increasingly prevalent human diseases such as cancer, ischaemic damage and neurodegeneration.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ADP ribose; PARP; DNA damage response; DNA repair; Parthanatos.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200304

DNA repair genes in astrocytoma tumorigenesis, progression and therapy resistance
Provedor de dados: 74
Autores: Sousa,Juliana Ferreira de; Serafim,Rodolfo Bortolozo; Freitas,Laura Marise de; Fontana,Carla Raquel; Valente,Valeria.
Abstract Glioblastoma (GBM) is the most common and malignant type of primary brain tumor, showing rapid development and resistance to therapies. On average, patients survive 14.6 months after diagnosis and less than 5% survive five years or more. Several pieces of evidence have suggested that the DNA damage signaling and repair activities are directly correlated with GBM phenotype and exhibit opposite functions in cancer establishment and progression. The functions of these pathways appear to present a dual role in tumorigenesis and cancer progression. Activation and/or overexpression of ATRX, ATM and RAD51 genes were extensively characterized as barriers for GBM initiation, but paradoxically the exacerbated activity of these genes was further associated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glioblastoma; DNA repair; Biomarkers; Tumor progression; Therapy resistance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200306

Bringing to light the molecular evolution of GUX genes in plants
Provedor de dados: 74
Autores: Gallinari,Rafael Henrique; Coletta,Rafael Della; Araújo,Pedro; Menossi,Marcelo; Nery,Mariana Freitas.
Abstract Hemicellulose and cellulose are essential polysaccharides for plant development and major components of cell wall. They are also an important energy source for the production of ethanol from plant biomass, but their conversion to fermentable sugars is hindered by the complex structure of cell walls. The glucuronic acid substitution of xylan (GUX) enzymes attach glucuronic acid to xylan, a major component of hemicellulose, decreasing the efficiency of enzymes used for ethanol production. Since loss-of-function gux mutants of Arabidopsis thaliana enhance enzyme accessibility and cell wall digestion without adverse phenotypes, GUX genes are potential targets for genetically improving energy crops. However, comprehensive identification of GUX in...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: GUX; Sugarcane; Phylogeny; Angiosperms; Biofuels.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100602

Investigation of SIRT1 gene variants in HIV-associated lipodystrophy and metabolic syndrome
Provedor de dados: 74
Autores: Tagliari,Carmela Farias da Silva; de Oliveira,Cáren Nunes; Vogel,Greice Meyer; da Silva,Patrícia Baptista; Linden,Rafael; Lazzaretti,Rosmeri Kuhmmer; Notti,Regina Kuhmmer; Sprinz,Eduardo; Mattevi,Vanessa Suñé.
Abstract HIV-infected individuals on chronic use of highly active antiretroviral therapy (HAART) are more likely to develop adipose tissue and metabolic disorders, such as lipodystrophy (LD) and metabolic syndrome (MetS). The development of these phenotypes is known to be multifactorial. Thus, variants in genes implicated in adipogenesis and lipid metabolism may increase susceptibility to LD and MetS. Sirtuin 1 (SIRT1) may influence the outcome of these disturbances due to its role in the regulation of transcription factors involved in energy regulation. Therefore, we genotyped four polymorphisms located in SIRT1 (rs2273773 T&gt;C, rs12413112 G&gt;A, rs7895833 A&gt;G, rs12049646 T&gt;C) in 832 HIV-infected patients receiving HAART by real-time polymerase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HIV; Lipodystrophy; Metabolic syndrome; Sirtuin 1.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100105

Proteomic analysis of a clavata-like phenotype mutant in Brassica napus
Provedor de dados: 74
Autores: Zhu,Keming; Zhang,Weiwei; Sarwa,Rehman; Xu,Shuo; Li,Kaixia; Yang,Yanhua; Li,Yulong; Wang,Zheng; Cao,Jun; Li,Yaoming; Tan,Xiaoli.
Abstract Rapeseed is one of important oil crops in China. Better understanding of the regulation network of main agronomic traits of rapeseed could improve the yielding of rapeseed. In this study, we obtained an influrescence mutant that showed a fusion phenotype, similar with the Arabidopsis clavata-like phenotype, so we named the mutant as Bnclavata-like (Bnclv-like). Phenotype analysis illustrated that abnormal development of the inflorescence meristem (IM) led to the fused-inflorescence phenotype. At the stage of protein abundance, major regulators in metabolic processes, ROS metabolism, and cytoskeleton formation were seen to be altered in this mutant. These results not only revealed the relationship between biological processes and inflorescence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica napus; Proteomic; Inflorescence meristem (IM); Bnclavata-like (Bnclv-like); Quantitative real-time PCR.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100308

Comparative transcriptome analysis of the hippocampus from sleep-deprived and Alzheimer’s disease mice
Provedor de dados: 74
Autores: Wei,Yi.
Abstract We did a comparative analysis of the gene expression profiles of the hippocampus from sleep deprivation and Alzheimer’s disease (AD) mice. Differentially expressed genes (DEGs) were identified by comparing the transcriptome profiles of the hippocampus of sleep deprivation or AD mouse models to matched controls. The common DEGs between sleep deprivation and AD were identified by the overlapping analysis, followed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. The results showed that a total of 16 common DEGs showed similar change patterns in both sleep deprivation mice and AD mice. Sgk1, Ly6a, Atp6v0e, Hspb8, Htra1, Pdk4, Pfkfb3, Golm1, and Plin3 were up-regulated in the two disorders, whereas, Marcksl1, Fgd1,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sleep deprivation; Alzheimer’s disease; Hippocampus; Acetyl-CoA; Lipid.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400703

Genetic variants in the G gamma-globin promoter modulate fetal hemoglobin expression in the Colombian population
Provedor de dados: 74
Autores: Fong,Cristian; Mendoza,Yesica; Barreto,Guillermo.
Abstract Fetal hemoglobin (HbF) is a determining factor for the development of sickle cell anemia. High HbF levels lower the intensity of symptoms of this disease. HbF levels can vary in patients with sickle cell anemia and individuals without the disease. The purpose of this study was to identify the genetic variants in the G gamma-globin gene promoter that can modulate HbF expression in patients with sickle cell anemia and healthy individuals from Colombia. In total, 413 bp of the G gamma-globin gene promoter were sequenced in 60 patients with sickle cell anemia and 113 healthy individuals. The allelic and genotype frequencies of the identified variants were compared between individuals with low and high HbF for both patients and healthy individuals. In...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Sickle cell anemia; Fetal hemoglobin; Gamma globin; Regulation of gene expression; Colombia.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400103

Targeting STAT-3 signaling pathway in cancer for development of novel drugs: Advancements and challenges
Provedor de dados: 74
Autores: Arshad,Sundas; Naveed,Muhammad; Ullia,Mahad; Javed,Khadija; Butt,Ayesha; Khawar,Masooma; Amjad,Fazeeha.
Abstract Signal transducers and activators of transcription 3 (STAT-3) is a transcription factor that regulates the gene expression of several target genes. These factors are activated by the binding of cytokines and growth factors with STAT-3 specific receptors on cell membrane. Few years ago, STAT-3 was considered an acute phase response element having several cellular functions such as inflammation, cell survival, invasion, metastasis and proliferation, genetic alteration, and angiogenesis. STAT-3 is activated by several types of inflammatory cytokines, carcinogens, viruses, growth factors, and oncogenes. Thus, the STAT3 pathway is a potential target for cancer therapeutics. Abnormal STAT-3 activity in tumor development and cellular transformation can...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: STAT-3; DNA binding domain; Apoptosis; Drug discovery STAT-3 inhibitors.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100101

Role of error-prone DNA polymerases in spontaneous mutagenesis in Caulobacter crescentus
Provedor de dados: 74
Autores: Valencia,Alexy O.; Braz,Vânia S.; Magalhães,Magna; Galhardo,Rodrigo S.
Abstract Spontaneous mutations are important players in evolution. Nevertheless, there is a paucity of information about the mutagenic processes operating in most bacterial species. In this work, we implemented two forward mutational markers for studies in Caulobacter crescentus. We confirmed previous results in which A:T → G:C transitions are the most prevalent type of spontaneous base substitutions in this organism, although there is considerable deviation from this trend in one of the loci analyzed. We also investigated the role of dinB and imuC, encoding error-prone DNA polymerases, in spontaneous mutagenesis in this GC-rich organism. Both dinB and imuC mutant strains show comparable mutation rates to the parental strain. Nevertheless, both strains...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DinB; ImuC; DnaE2; Spontaneous mutagenesis; Caulobacter crescentus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100402

Calibration curves by 60Co with low dose rate are different in terms of dose estimation – a comparative study
Provedor de dados: 74
Autores: Mendes,Mariana Esposito; Mendonça,Julyanne Conceição Goes de; Hwang,Suy; Giorgio,Marina Di; Lima,Fabiana Farias de; Santos,Neide.
Abstract Biological dosimetry aims to estimate individual absorbed doses due ionizing radiation exposure. The dicentric chromosomes are considered the most specific biomarker for dose estimation. This study aimed to compare calibration curves for linear low energy transfer (LET) radiation built from low dose rates and whether they vary in terms of dose estimation. For that we did a search in the literature of all calibration curves produced with low dose rates and we simulated the dose estimation from pre-established dicentric’s frequencies. The information on methodologies and cytogenetic results of each study were analyzed. As expected dose rate influence β coefficients, especially at higher doses. However, we have seen that some doses were not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrics; Gamma radiation; Biological dosimetry; Intercomparisons.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100108

Identification of histone methylation modifiers and their expression patterns during somatic embryogenesis in Hevea brasiliensis
Provedor de dados: 74
Autores: Li,Hui-Liang; Guo,Dong; Zhu,Jia-Hong; Wang,Ying; Peng,Shi-Qing.
Abstract Histone methylation plays a crucial role in various biological processes, from heterochromatin formation to transcriptional regulation. Currently, no information is available regarding histone methylation modifiers in the important rubber-producing plant Hevea brasiliensis. Here, we identified 47 histone methyltransferase (HMT) genes and 25 histone demethylase (HDM) genes as possible members of the histone methylation modifiers in the rubber tree genome. According to the structural features of HMT and HDM, the HbHMTs were classified into two groups (HbPRMs and HbSDGs), the HbHDMs have two groups (HbLSDs and HbJMJs). Expression patterns were analyzed in five different tissues and at different phases of somatic embryogenesis. HbSDG10, 21, 25, 33,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hevea brasiliensis; Histone methylation; Histone methyltransferase; Histone demethylase; Somatic embryogenesis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100301

DNA replication stress: oncogenes in the spotlight
Provedor de dados: 74
Autores: Primo,Luiza M. F.; Teixeira,Leonardo K.
Abstract Precise replication of genetic material is essential to maintain genome stability. DNA replication is a tightly regulated process that ensues faithful copies of DNA molecules to daughter cells during each cell cycle. Perturbation of DNA replication may compromise the transmission of genetic information, leading to DNA damage, mutations, and chromosomal rearrangements. DNA replication stress, also referred to as DNA replicative stress, is defined as the slowing or stalling of replication fork progression during DNA synthesis as a result of different insults. Oncogene activation, one hallmark of cancer, is able to disturb numerous cellular processes, including DNA replication. In fact, extensive work has indicated that oncogene-induced replication...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cancer; Cell cycle; DNA replication; Oncogene; Replication stress.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200301

Expression of miR-148b-3p is correlated with overexpression of biomarkers in prostate cancer
Provedor de dados: 74
Autores: Arámbula-Meraz,Eliakym; Bergez-Hernández,Fernando; Leal-León,Emir; Romo-Martínez,Enrique; Picos-Cárdenas,Verónica; Luque-Ortega,Fred; Romero-Quintana,Jose; Alvarez-Arrazola,Marco; García-Magallanes,Noemí.
Abstract Prostate cancer (PCa) is one of the leading causes of death among men. Genes such as PCA3, PSA, and Fra-1 are suggested to serve as potential tools for the detection of PCa, as they are deregulated during this pathology. A similar event occurs with small non-coding RNAs, called miRNAs, specifically miR-195-5p, miR-133a-3p, and miR-148b-3p, which were analyzed in a Chinese population and suggested to be possible candidates for PCa diagnosis. We evaluated the expression levels of three miRNAs and three genes in tissue samples of PCa and benign prostate disease, such as benign prostatic hyperplasia, or prostatitis, in order to determine their potential as candidates for PCa detection. Our results showed a statistically significant overexpression of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene expression; Biomarker; MiRNAs; Correlation; Prostate cancer.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100112

Cancer-related worry and risk perception in Brazilian individuals seeking genetic counseling for hereditary breast cancer
Provedor de dados: 74
Autores: Palmero,Edenir Inêz; Campacci,Natalia; Schüler-Faccini,Lavinia; Giugliani,Roberto; Rocha,José Claudio Casali da; Vargas,Fernando Regla; Ashton-Prolla,Patricia.
Abstract In Brazil, the population in general has little knowledge about genetic risks, as well as regarding the role and importance of the Cancer Genetic Counseling (CGC). The goal of this study was to evaluate cancer-related worry and cancer risk perception during CGC sessions in Brazilian women at-risk for hereditary breast cancer. This study was performed in 264 individuals seeking CGC for hereditary breast cancer. Both cancer-affected and unaffected individuals were included. As results, individuals with and without cancer reported different motivations for seeking CGC and undergoing genetic testing. A correlation was observed between age at the first CGC session and age at which the closest relative was diagnosed with cancer. Multivariate analysis...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Hereditary breast cancer; Hereditary cancer; Cancer-related worry; Cancer risk perception; Genetic counselling.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400104

Chromosome comparison among five species of Neotropical cichlids of Cichlasoma and Gymnogeophagus (Perciformes)
Provedor de dados: 74
Autores: Pires,Larissa Bettin; Usso,Mariana Campaner; Giuliano-Caetano,Lucia; Dias,Ana Lúcia.
Abstract The genera Cichlasoma and Gymnogeophagus belong to the subfamily Cichlinae, the only one in Neotropical cichlids. Cichlasoma dimerus, C. paranaense, C. portalegrense, Gymnogeophagus rhabdotus, and G. lacustris were collected at different points in the Paranapanema and Paraguay basins and the Lagoon of Patos hydrographic system. In addition to conventional analysis, CMA3 fluorochrome staining, and FISH with 18S rDNA probe were performed. All species had a diploid number equal to 48, with interand intraspecific differences in karyotype formulae. All species presented a single AgNOR site, except G. rhabdotus and the C. paranaense population of the Paranapanema River, which revealed more than one pair of nucleolar chromosomes. AgNORs were coincident...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosome banding; Fish cytogenetics; Karyotype diversification; Ribosomal DNA.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400203

Birth defects in Brazil: Outcomes of a population-based study
Provedor de dados: 74
Autores: Oliveira-Brancati,Camila Ive Ferreira; Ferrarese,Valéria Cristina Carvalho; Costa,Antonio Richieri; Fett-Conte,Agnes Cristina.
Abstract Birth defects (BDs) are functional and structural alterations in embryonic or fetal development. With an incidence of approximately 3-5%, BDs are a leading cause of infant mortality and lifelong disability. A population-based prospective case-control study was conducted for one year with 5204 infants, between March 1st, 2011 and February 29th, 2012 in the city of São José do Rio Preto, State of São Paulo, Brazil. The incidence of BDs was 3.2% [95% confidence interval (95%CI): 2.8-3.8%]. The most common congenital anomalies were heart diseases in isolation (11.2%; 95%CI: 7.3-16.9%) followed by Down syndrome (9.5%; 95%CI: 5.9-14.8%), neural tube defects (8.9%; 95%CI: 5.4-14.1), urinary tract anomalies (7.7%; 95%CI: 4.4-12.7%), and polydactyly (7.0%;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malformation; Congenital anomaly; Fetal development; Genetic counseling; Public health.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100102

Genome-wide analysis of the transcriptional response to drought stress in root and leaf of common bean
Provedor de dados: 74
Autores: Pereira,Wendell Jacinto; Melo,Arthur Tavares de Oliveira; Coelho,Alexandre Siqueira Guedes; Rodrigues,Fabiana Aparecida; Mamidi,Sujan; Alencar,Sérgio Amorim de; Lanna,Anna Cristina; Valdisser,Paula Arielle Mendes Ribeiro; Brondani,Claudio; Nascimento-Júnior,Ivanildo Ramalho do; Borba,Tereza Cristina de Oliveira; Vianello,Rosana Pereira.
Abstract Genes related to the response to drought stress in leaf and root tissue of drought-susceptible (DS) and tolerant (DT) genotypes were characterized by RNA-Seq. In total, 54,750 transcripts, representative of 28,590 genes, were identified; of these, 1,648 were of high-fidelity (merge of 12 libraries) and described for the first time in the Andean germplasm. From the 1,239 differentially expressed genes (DEGs), 458 were identified in DT, with a predominance of genes in categories of oxidative stress, response to stimulus and kinase activity. Most genes related to oxidation-reduction terms in roots were early triggered in DT (T75) compared to DS (T150) suggestive of a mechanism of tolerance by reducing the damage from ROS. Among the KEGG enriched by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Water deficit; Functional genomics; Single nucleotide polymorphism (SNP).
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100309

The distribution of 45S rDNA sites in bird chromosomes suggests multiple evolutionary histories
Provedor de dados: 74
Autores: Degrandi,Tiago Marafiga; Gunski,Ricardo José; Garnero,Analía del Valle; Oliveira,Edivaldo Herculano Correa de; Kretschmer,Rafael; Souza,Marcelo Santos de; Barcellos,Suziane Alves; Hass,Iris.
Abstract The distribution of 45S rDNA cluster in avian karyotypes varies in different aspects, such as position, number of bearer chromosomes, and bearers being macro- or microchromosomes. The present study investigated the patterns of variation in the 45S rDNA-bearer chromosomes of birds in order to understand the evolutionary dynamics of the cluster configuration and its contribution to the evolution of bird karyotypes. A total of 73 bird species were analyzed, including both published data and species for which rDNA-FISH was conducted for the first time. In most birds, the 45S rDNA clusters were located in a single pair of microchromosomes. Hence, the location of 45S rDNA in macrochromosomes, observed only in Neognathae species, seems to be a derived...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: FISH; Chromosome; Chromosome evolution; Cytogenetics; Aves.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400601

Ecological setup, ploidy diversity, and reproductive biology of Paspalum modestum, a promising wetland forage grass from South America
Provedor de dados: 74
Autores: Karunarathne,Piyal; Feduzka,Cristian; Diego,Hojsgaard.
Abstract With ever-rising demand for food, forage breeding for intensification of cattle production is also taking a leap. In South America, cattle production systems are displaced to marginal areas poorly exploited with cultivated pastures yet with high potential for growing stocking rates. This places the need for using native genetic resources to breed locally adapted plant genotypes that benefits from better forage quality, yield, and lesser threat to the local biodiversity. Paspalum modestum Mez is a grass species that produces quality forage and grows in marginal areas like estuaries and floodplains, suitable for introduction in breeding programs. In this study we characterize the species' reproductive biology and ecological preferences needed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Ecological niche; Plant breeding; Polyploidy; Sexuality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000300304

Comparative analyses of three swallow species (Aves, Passeriformes, Hirundinidae): Insights on karyotype evolution and genomic organization
Provedor de dados: 74
Autores: Barcellos,Suziane Alves; Kretschmer,Rafael; Souza,Marcelo Santos de; Costa,Alice Lemos; Degrandi,Tiago Marafiga; Lopes,Cassiane Furlan; Ferguson-Smith,Malcolm A.; Pereira,Jorge; Oliveira,Edivaldo Herculano Correa de; Gunski,Ricardo José; Garnero,Analía del Valle.
Abstract Despite the richness of species in the Hirudinidae family, little is known about the genome organization of swallows. The Progne tapera species presents genetic and morphological difference when compared to other members of the same genus. Hence, the aims of this study were to analyze the chromosomal evolution of three species Progne tapera, Progne chalybea and Pygochelidon cyanoleuca - by comparative chromosome painting using two sets of probes, Gallus gallus and Zenaida auriculata, in order to determine chromosome homologies and the relationship between these species. All karyotypes exhibited 76 chromosomes with similar morphology, except for the 5th, 6th and 7th chromosome pairs in P. cyanoleuca. Additionally, comparative chromosome painting...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Homology; Molecular cytogenetics; Fluorescent in situ hybridization; Hirundinidae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100201

Comparative analysis of the complete chloroplast genomes from six Neotropical species of Myrteae (Myrtaceae)
Provedor de dados: 74
Autores: Rodrigues,Nureyev F.; Balbinott,Natalia; Paim,Igor; Guzman,Frank; Margis,Rogerio.
Abstract Myrteae is the largest and most diverse tribe within Myrtaceae and represents the majority of its diversity in the Neotropics. Members of Myrteae hold ecological importance in tropical biomes for the provision of food sources for many animal species. Thus, due to its several roles, a growing interest has been addressed to this group. In this study, we report the sequencing and de novo assembly of the complete chloroplast (cp) genomes of six Myrteae species: Eugenia brasiliensis, E. pyriformis, E. nitida, Myrcianthes pungens, Plinia edulis and Psidium cattleianum. We characterized genome structure, gene content, and identified SSRs to detect variation within Neotropical Myrteae. The six newly sequenced plastomes exhibit a typical quadripartite...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CpDNA; Genomic resource; Populational genetics; Plastid; Conservation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400801

Genome sequence of Shewanella corallii strain A687 isolated from pufferfish (Sphoeroides spengleri)
Provedor de dados: 74
Autores: Azevedo,Gustavo P.R.; Paz,Pedro H. C da; Mattsson,Hannah K.; Moreira,Ana Paula B.; Leomil,Luciana; Calegário,Gabriela; Appolinario,Luciana; Vidal,Lívia; Silva,Bruno S.; Tonon,Luciane A. Chimetto; Tschoeke,Diogo A.; Garcia,Gizele D.; Thompson,Fabiano L.; Thompson,Cristiane C.
Abstract We present here the genome sequence of Shewanella corallii strain A687 isolated from pufferfish Sphoeroides spengleri (Family Tetraodontidae). The assembly consists of 5,215,037 bp and contains 284 contigs, with a G+C content of 50.3%.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Shewanella; Gammaproteobacteria; Genome; Gene prediction; Secondary metabolism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100401

Novel mutation in ENG gene causing Hereditary Hemorrhagic Telangiectasia in a Peruvian family
Provedor de dados: 74
Autores: Zevallos-Morales,Alejandro; Murillo,Alexis; Dueñas-Roque,Milagros M.; Prötzel,Ana; Venegas-Tresierra,Luis; Ángeles-Villalba,Verónica; Guevara-Cruz,Miguel; Chávez-Gil,Ada; Fujita,Ricardo; Guevara-Fujita,Maria L.
Abstract Hereditary Hemorrhagic Telangiectasia (HHT) is a rare disorder of vascular development. Common manifestations include epistaxis, telangiectasias and arteriovenous malformations (AVMs) in multiple organs. Most patients have deletions or missense mutations in the ENG or ACVRL1 gene respectively, significantly affecting endothelium homeostasis. We analyzed the ENG gene in five members of a Peruvian family affected by HHT. One novel mutation was found in exon four of the ENG gene c.408delA, at aminoacid residue 136. This mutation changes the subsequent reading frame producing an early stop at residue 162, preserving only one fourth of the normal protein of 658 aa. This mutation was found in the four affected members of family.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: ENG; Hereditary Hemorrhagic Telangiectasia; Osler-Weber-Rendu disease.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100109

Large miRNA survival analysis reveals a prognostic four-biomarker signature for triple negative breast cancer
Provedor de dados: 74
Autores: Andrade,Fernando; Nakata,Asuka; Gotoh,Noriko; Fujita,André.
Abstract Triple negative breast cancer (TNBC) is currently the only major breast tumor subtype without effective targeted therapy and, as a consequence, usually presents a poor outcome. Due to its more aggressive phenotype, there is an urgent clinical need to identify novel biomarkers that discriminate individuals with poor prognosis. We hypothesize that miRNAs can be used to this end because they are involved in the initiation and progression of tumors by altering the expression of their target genes. To identify a prognostic biomarker in TNBC, we analyzed the miRNA expression of a cohort composed of 185 patients diagnosed with TNBC using penalized Cox regression models. We identified a four-biomarker signature based on miR-221, miR-1305, miR-4708, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MiRNA; MiR-221; MiR-1305; MiR-4708; RMDN2.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100110

Does the chromosomal position of 35S rDNA sites influence their transcription? A survey on Nothoscordum species (Amaryllidaceae)
Provedor de dados: 74
Autores: Báez,Mariana; Souza,Gustavo; Guerra,Marcelo.
Abstract 35S ribosomal DNA (rDNA) sites are the regions where the ribosomal genes 18S, 5.8S and 25S, responsible for the formation of the nucleoli, are found. The fact that rDNA sites have non-random distribution on chromosomes suggests that their positions may influence their transcription. To identify if the preferentially transcribed rDNA sites occupy specific position, six species (nine cytotypes) of the genus Nothoscordum were analyzed using two different techniques to impregnate the nucleolar organizer regions (NORs) with silver nitrate. Both techniques strongly stained NORs, but one of them also stained the proximal region of all chromosomes, suggesting the existence of another group of argentophilic proteins in this region. In species with rDNA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nucleolus; Ribosomal genes; Preferential activation of NORs; Nothoscordum.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100305

Extinction and emergence of genomic haplotypes during the evolution of Avian coronavirus in chicken embryos
Provedor de dados: 74
Autores: Brandão,Paulo E.; Hora,Aline S.; Silva,Sheila O. S.; Taniwaki,Sueli A.; Berg,Mikael.
Abstract Avian coronavirus (AvCoV) is ubiquitously present on poultry as a multitude of virus lineages. Studies on AvCoV phenotypic traits are dependent on the isolation of field strains in chicken embryonated eggs, but the mutant spectrum on each isolate is not considered. This manuscript reports the previously unknown HTS (high throughput sequencing)-based complete genome haplotyping of AvCoV isolates after passages of two field strains in chicken embryonated eggs. For the first and third passages of strain 23/2013, virus loads were 6.699 log copies/ μL and 6 log copies/ μL and, for 38/2013, 5.699 log copies/μL and 2.699 log copies/μL of reaction, respectively. The first passage of strain 23/2013 contained no variant haplotype, while, for the third...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avian coronavirus; Haplotype; Mutant spectrum; NGS; Evolution.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400202

Transcriptomics analysis of Psidium cattleyanum Sabine (Myrtaceae) unveil potential genes involved in fruit pigmentation
Provedor de dados: 74
Autores: Vetö,Nicole M.; Guzman,Frank; Kulcheski,Franceli R.; Segatto,Ana Lúcia A.; Lacerda,Maria Eduarda G.; Margis,Rogerio; Turchetto-Zolet,Andreia C.
Abstract Psidium cattleyanum Sabine is an Atlantic Forest native species that presents some populations with red fruits and others with yellow fruits. This variation in fruit pigmentation in this species is an intriguing character that could be related to species evolution but still needs to be further explored. Our goal was to provide genomic information for these morphotypes to understand the molecular mechanisms of differences in fruit colour in this species. In this study, we performed a comparative transcriptome analysis of red and yellow morphotypes of P. cattleyanum, considering two stages of fruit ripening. The transcriptomic analysis performed encompassing leaves, unripe and ripe fruits, in triplicate for each morphotype. The transcriptome...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthocyanin; Atlantic Forest; Carotenoids; Fruit ripening; Myrtaceae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400803

-866G/A and Ins/Del polymorphisms in the UCP2 gene and diabetic kidney disease: case-control study and meta-analysis
Provedor de dados: 74
Autores: Dieter,Cristine; Assmann,Taís Silveira; Lemos,Natália Emerim; Massignam,Eloísa Toscan; Souza,Bianca Marmontel de; Bauer,Andrea Carla; Crispim,Daisy.
Abstract Uncoupling protein 2 (UCP2) decreases reactive oxygen species (ROS). ROS overproduction is a key contributor to the pathogenesis of diabetic kidney disease (DKD). Thus, UCP2 polymorphisms are candidate risk factors for DKD; however, their associations with this complication are still inconclusive. Here, we describe a case-control study and a meta-analysis conducted to investigate the association between UCP2 -866G/A and Ins/Del polymorphisms and DKD. The case-control study comprised 385 patients with type 1 diabetes mellitus (T1DM): 223 patients without DKD and 162 with DKD. UCP2 -866G/A (rs659366) and Ins/Del polymorphisms were genotyped by real-time PCR and conventional PCR, respectively. For the meta-analysis, a literature search was conducted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: UCP2; Polymorphisms; Diabetic kidney disease.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400101

Methodological differences can affect sequencing depth with a possible impact on the accuracy of genetic diagnosis
Provedor de dados: 74
Autores: Borges,Murilo G.; Rocha,Cristiane S.; Carvalho,Benilton S.; Lopes-Cendes,Iscia.
Abstract For a better interpretation of variants, evidence-based databases, such as ClinVar, compile data on the presumed relationships between variants and phenotypes. In this study, we aimed to analyze the pattern of sequencing depth in variants from whole-exome sequencing data in the 1000 Genomes project phase 3, focusing on the variants present in the ClinVar database that were predicted to affect protein-coding regions. We demonstrate that the distribution of the sequencing depth varies across different sequencing centers (pair-wise comparison, p &lt; 0.001). Most importantly, we found that the distribution pattern of sequencing depth is specific to each facility, making it possible to correctly assign 96.9% of the samples to their sequencing center....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Whole exome sequencing; Depth; ClinVar; Computational biology; Clinical genomics.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400804

Molecular characterization and transcription analysis of DNA methyltransferase genes in tomato (Solanum lycopersicum)
Provedor de dados: 74
Autores: Guo,Xuhu; Xie,Qian; Li,Baoyuan; Su,Huanzhen.
Abstract DNA methylation plays an important role in plant growth and development, gene expression regulation, and maintenance of genome stability. However, only little information regarding stress-related DNA methyltransferases (MTases) genes is available in tomato. Here, we report the analysis of nine tomato MTases, which were categorized into four known subfamilies. Structural analysis suggested their DNA methylase domains are highly conserved, whereas the N-terminals are divergent. Tissue-specific analysis of these MTase genes revealed that SlCMT2, SlCMT3, and SlDRM5 were expressed higher in young leaves, while SlMET1, SlCMT4, SlDRM7, and SlDRM8 were highly expressed in immature green fruit, and their expression declined continuously with further fruit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA methylation; Tissue-specific expression; Abiotic stress; Fruit ripening; Tomato.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100307

The future of plant biotechnology in a globalized and environmentally endangered world
Provedor de dados: 74
Autores: Montagu,Marc Van.
Abstract This paper draws on the importance of science-based agriculture in order to throw light on the way scientific achievements are at the basis of modern civilization. An overview of literature on plant biotechnology innovations and the need to steer agriculture towards sustainability introduces a series of perspectives on how plant biotech can contribute to the major challenge of feeding our super population with enough nutritious food without further compromise of the environment. The paper argues that science alone will not solve problems. Three major forces - science, the economy and society - shape our modern world. There is a need for a new social contract to harmonize these forces. The deployment of the technologies must be done on the basis of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant biotech; GMO; Sustainable agriculture; Science and society.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000300301

From yeast to humans: Understanding the biology of DNA Damage Response (DDR) kinases
Provedor de dados: 74
Autores: Cussiol,José Renato Rosa; Soares,Bárbara Luísa; Oliveira,Francisco Meirelles Bastos de.
Abstract The DNA Damage Response (DDR) is a complex network of biological processes that protect cells from accumulating aberrant DNA structures, thereby maintaining genomic stability and, as a consequence, preventing the development of cancer and other diseases. The DDR pathway is coordinated by a signaling cascade mediated by the PI3K-like kinases (PIKK) ATM and ATR and by their downstream kinases CHK2 and CHK1, respectively. Together, these kinases regulate several aspects of the cellular program in response to genomic stress. Much of our understanding of these kinases came from studies performed in the 1990s using yeast as a model organism. The purpose of this review is to present a historical perspective on the discovery of the DDR kinases in yeast...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Yeast; Genome instability; DNA damage response; Cell cycle checkpoint; Kinase.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200302

A functional polymorphism in the paired basic amino acid-cleaving enzyme 4 gene confers osteoarthritis risk in a population of Eastern China
Provedor de dados: 74
Autores: He,Jin; Yang,Haoyu; Xu,Zhonghua; Li,Jin; Chen,Gang; Jiang,Lifeng; Wu,Lidong; Zhou,Xindie.
Abstract Paired basic amino acid-cleaving enzyme 4 (PACE4), a proprotein convertase, is involved in the activation of aggrecanases (ADAMTS-4 and ADAMTS-5) in osteoarthritic and cytokine-stimulated cartilage. Activated aggrecanases cause aggrecan degradation and thus, contribute to osteoarthritis (OA). In this study, we investigated the association between PACE4 gene polymorphisms and OA risk. One single-nucleotide polymorphism (rs4965833) in the PACE4 gene was genotyped in 432 OA patients and 523 healthy controls using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Quantitative reverse transcription PCR (qRT-PCR) was used to determine the relative expression of PACE4 in blood samples from 90 OA patients (30 for each...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ACE4; Osteoarthritis; Bioinformatics analysis; Single-nucleotide polymorphism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100104

Epistasis of polymorphisms related to the articular cartilage extracellular matrix in knee osteoarthritis: Analysis-based multifactor dimensionality reduction
Provedor de dados: 74
Autores: Fernández-Torres,Javier; Martínez-Nava,Gabriela Angélica; Zamudio-Cuevas,Yessica; Lozada,Carlos; Garrido-Rodríguez,Daniela; Martínez-Flores,Karina.
Abstract Osteoarthritis (OA) is a complex disease with a multifactorial etiology. The genetic component is one of the main associated factors, resulting from interactions between genes and environmental factors. The aim of this study was to identify gene-gene interactions (epistasis) of the articular cartilage extracellular matrix (ECM) in knee OA. Ninety-two knee OA patients and 147 healthy individuals were included. Participants were genotyped in order to evaluate nine variants of eight genes associated with ECM metabolism using the OpenArray technology. Epistasis was analyzed using the multifactor dimensionality reduction (MDR) method. The MDR analysis showed significant gene-gene interactions between MMP3 (rs679620) and COL3A1 (rs1800255), and between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epistasis; Extracellular matrix; Knee osteoarthritis; Multifactor dimensionality reduction; Polymorphisms.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400102

Underrated Staphylococcus species and their role in antimicrobial resistance spreading
Provedor de dados: 74
Autores: Rossi,Ciro César; Pereira,Monalessa Fábia; Giambiagi-deMarval,Marcia.
Abstract The increasing threat of antimicrobial resistance has shed light on the interconnection between humans, animals, the environment, and their roles in the exchange and spreading of resistance genes. In this review, we present evidences that show that Staphylococcus species, usually referred to as harmless or opportunistic pathogens, represent a threat to human and animal health for acting as reservoirs of antimicrobial resistance genes. The capacity of genetic exchange between isolates of different sources and species of the Staphylococcus genus is discussed with emphasis on mobile genetic elements, the contribution of biofilm formation, and evidences obtained either experimentally or through genome analyses. We also discuss the involvement of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horizontal gene transfer; Antimicrobial resistance; Coagulase negative staphylococcus; Biofilm; CRISPR; One Health.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000300303

ANRIL rs1333049 C/G polymorphism and coronary artery disease in a North Indian population - Gender and age specific associations
Provedor de dados: 74
Autores: Kaur,Naindeep; Singh,Jagtar; Reddy,Sreenivas.
Abstract Many studies conducted worldwide substantiate a role of genetic polymorphisms in non-coding regions linked with coronary artery disease (CAD). One such single nucleotide polymorphism (SNP) of a non-coding RNA in the INK4 locus (ANRIL) i.e. rs1333049 C/G in the vicinity of cell cycle regulating genes is documented to have a role in CAD risk. In this study we aimed to determine the association of ANRIL rs1333049 C/G with CAD in a North Indian population. Five hundred disease free controls and 500 CAD patients were genotyped using allele specific ARMS-PCR method. High risk association of rs1333049 was seen in both heterozygous and mutant genotypes (OR=2.883, 95% CI=1.475-5.638 and p=0.002 and OR=6.717, 95% CI=3.444-13.102 and p &lt; 0.001...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic polymorphism; Coronary artery disease; North Indian Population; ARMS-PCR; Epidemiology study.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100114

Genetic evidence for a species complex within the piranha Serrasalmus maculatus (Characiformes, Serrasalmidae) from three Neotropical river basins based on mitochondrial DNA sequences
Provedor de dados: 74
Autores: Bignotto,Thaís Souto; Maniglia,Thiago Cintra; Gomes,Vivian Nunes; Oliveira,Isadora Janolio de; Agostinho,Carlos Sérgio; Prioli,Sônia Maria Alves Pinto; Prioli,Alberto José.
Abstract Mitochondrial molecular markers (DNA sequences of D-loop, cytochrome b and cytochrome c oxidase I) were employed to characterize populations of the piranha Serrasalmus maculatus from Upper Paraná, Upper Paraguay and Tocantins River basins. D-loop sequences of S. maculatus population from Paraná-Paraguay River basin exhibited tandem repeats of short motifs (12 base pairs) and variable numbers depending on specimens, accounting for length variation. Concatenated mitochondrial sequences suggested that S. maculatus encompasses different mitochondrial DNA lineages. Although sampling was restricted to three river basins, phylogenetic analysis clearly indicated that the species currently recognized as S. maculatus presents high genetic variability....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryptic species; Species delimitation; D-loop; Cytochrome b; Cytochrome c oxidase I.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100801

[RETRACTION]: Expression of serum microRNA-378 and its clinical significance in renal cell carcinoma
Provedor de dados: 74
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400950

Heterochromatin and numeric chromosome evolution in Bignoniaceae, with emphasis on the Neotropical clade Tabebuia alliance
Provedor de dados: 74
Autores: Cordeiro,Joel M.P.; Kaehler,Miriam; Souza,Luiz Gustavo; Felix,Leonardo P.
Abstract Bignoniaceae is a diverse family composed of 840 species with Pantropical distribution. The chromosome number 2n = 40 is predominant in most species of the family, with n = 20 formerly being considered the haploid base number. We discuss here the haploid base number of Bignoniaceae and examine heterochromatin distributions revealed by CMA/DAPI fluorochromes in the Tabebuia alliance, as well as in some species of the Bignonieae, Tecomeae, and Jacarandeae tribes. When comparing the chromosome records and the phylogenies of Bignoniaceae it can be deduced that the base number of Bignoniaceae is probably n = 18, followed by an ascendant dysploidy (n = 18 → n = 20) in the most derived and diverse clades. The predominant heterochromatin banding patterns...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosome number; CMA/DAPI; Handroanthus; Polyploidy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100303

Roles of the mitochondrial replisome in mitochondrial DNA deletion formation
Provedor de dados: 74
Autores: Oliveira,Marcos T.; Pontes,Carolina de Bovi; Ciesielski,Grzegorz L.
Abstract Mitochondrial DNA (mtDNA) deletions are a common cause of human mitochondrial diseases. Mutations in the genes encoding components of the mitochondrial replisome, such as DNA polymerase gamma (Pol γ) and the mtDNA helicase Twinkle, have been associated with the accumulation of such deletions and the development of pathological conditions in humans. Recently, we demonstrated that changes in the level of wild-type Twinkle promote mtDNA deletions, which implies that not only mutations in, but also dysregulation of the stoichiometry between the replisome components is potentially pathogenic. The mechanism(s) by which alterations to the replisome function generate mtDNA deletions is(are) currently under debate. It is commonly accepted that stalling of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mitochondria; DNA replication; Human diseases; Pol γ; Twinkle.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200307

Genetic diversity in populations of African mahogany (Khaya grandioliola C. DC.) introduced in Brazil
Provedor de dados: 74
Autores: Soares,Sabrina Delgado; Bandeira,Ludmila Ferreira; Ribeiro,Stela Barros; Telles,Mariana Pires de Campos; Silva,João Augusto da; Borges,Canrobert Tormin; Coelho,Alexandre Siqueira Guedes; Novaes,Evandro.
Abstract Given its high-valued wood, the African mahogany (Khaya grandifoliola) has been envisaged as a renewable source of tropical hardwoods in Brazil. However, there are concerns about the hypothesized low diversity among the few K. grandifoliola germplasm sources introduced in the country. Using eight microsatellite markers, we evaluated the genetic diversity and divergence among 53 superior trees selected from three provenances of K. grandifoliola located in the state of Para. These populations are among the oldest plantations (&gt;15 years) in Brazil and, therefore, the country's main seed sources. The average number of alleles per locus was 5.9, expected heterozygosity was moderate (^=0.56) and lower than the high observed heterozygosity (HO=0.74)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microsatellites; SSR; Genetic structure; Genetic divergence; Hardwood.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400301

Overexpression of rice F-box protein OsFBX322 confers increased sensitivity to gamma irradiation in Arabidopsis
Provedor de dados: 74
Autores: Hwang,Jung Eun; Hwang,Sun-Goo; Jung,In Jung; Han,Sung Min; Ahn,Joon-Woo; Kim,Jin-Baek.
Abstract Ionizing radiation has a substantial effect on physiological and biochemical processes in plants via induction of transcriptional changes and diverse genetic alterations. Previous microarray analysis showed that rice OsFBX322, which encodes a rice F-box protein, was downregulated in response to three types of ionizing radiation: gamma irradiation, ion beams, and cosmic rays. In order to characterize the radiation-responsive genes in rice, OsFBX322 was selected for further analysis. OsFBX322 expression patterns in response to radiation were confirmed using quantitative RT-PCR. Transient expression of a GFP-OsFBX322 fusion protein in tobacco leaf epidermis indicated that OsFBX322 is localized to the nucleus. To determine the effect of OsFBX322...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: F-box protein; Gamma-irradiation; Ionizing radiation; Rice; Transgenic plant.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100304

Low cytomolecular diversification in the genus Stylosanthes Sw. (Papilionoideae, Leguminosae)
Provedor de dados: 74
Autores: Franco,Ana Luiza; Figueredo,Amanda; Pereira,Lívia de Moraes; Sousa,Saulo Marçal de; Souza,Gustavo; Carvalho,Marcelo Ayres; Simon,Marcelo F.; Viccini,Lyderson Facio.
Abstract Stylosanthes (Papilionoideae, Leguminosae) is a predominantly Neotropical genus with ~48 species that include worldwide important forage species. This study presents the chromosome number and morphology of eight species of the genus Stylosanthes (S. acuminata, S. gracilis, S. grandifolia, S. guianensis, S. hippocampoides, S. pilosa, S. macrocephala, and S. ruellioides). In addition, staining with CMA and DAPI, in situ hybridization with 5S and 35S rDNA probes, and estimation of DNA content were performed. The interpretation of Stylosanthes chromosome diversification was anchored by a comparison with the sister genus Arachis and a dated molecular phylogeny based on nuclear and plastid loci. Stylosanthes species showed 2n = 20, with low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arachis; Cytogenetics; Evolution; Leguminosae; Stylosanthes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100306

Non-mosaic partial duplication 12p in a patient with dysmorphic characteristics and developmental delay
Provedor de dados: 74
Autores: Oliveira,Jakeline Santos; Joaquim,Tatiana Mozer; Silva,Rosana Aparecida Bicudo da; Souza,Deise Helena de; Martelli,Lúcia Regina; Moretti-Ferreira,Danilo.
Abstract Duplication of the short arm of chromosome 12 is a rare chromosomal abnormality that may arise de novo or result from malsegregation of a balanced parental translocation. This study comprises the clinical description, cytogenetic and cytogenomic analyses and genotype-phenotype correlation in a patient with facial dysmorphism, developmental delay and intellectual impairment caused by non-mosaic partial duplication and a paracentric inversion 12p. The patient’s GTG-banded karyotype was 46,XX,invdup(12)(pter → p13.32::p11.1 → p13.31::p13.31 → qter). A genetic gain of approximately 28 Mb was detected in the chromosomal region arr[GRCh37]12p13.31-p11.1(6914072_34756209)x3. The chromosomal alteration seen in our patient is described as “pure” partial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Duplication 12p; Array-CGH; Facial dysmorphism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100103

Identification of LincRNA from Dermatophagoides farinae (Acari: Pyroglyphidae) for Potential Allergen-Related Targets
Provedor de dados: 74
Autores: Zhou,Ying; Wu,Meili; Zhu,Hanting; Shao,Junjie; Liu,Chang; Cui,Yubao.
Abstract Long noncoding RNAs (lncRNAs), especially their important subclass of long intergenic noncoding RNAs (lincRNAs), have been identified in some insects. They play important roles in the regulation of biological processes, such as immune response or cell differentiation and as possible evolutionary precursors for protein coding genes. House dust mites (HDMs) are recognized as allergenic mites because allergens are found in their feces and bodies. Dermatophagoides farinae is one of the most important pyroglyphid mites because of its abundance in the household. To determine if lincRNAs can regulate allergen presentation in HDMs, we analyzed RNA-seq data for HDMs. We identified 11 lincRNAs that are related to mRNAs coding for allergens in HDMs. Using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: House dust mites (HDMs); Dermatophagoides farinae; Long noncoding RNAs (lncRNAs); Allergen; RNA-seq.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100804

Reciprocal regulation between alternative splicing and the DNA damage response
Provedor de dados: 74
Autores: Botto,Adrian E. Cambindo; Muñoz,Juan C.; Giono,Luciana E.; Nieto-Moreno,Nicolás; Cuenca,Carmen; Kornblihtt,Alberto R.; Muñoz,Manuel J.
Abstract Splicing, the process that catalyzes intron removal and flanking exon ligation, can occur in different ways (alternative splicing) in immature RNAs transcribed from a single gene. In order to adapt to a particular context, cells modulate not only the quantity but also the quality (alternative isoforms) of their transcriptome. Since 95% of the human coding genome is subjected to alternative splicing regulation, it is expected that many cellular pathways are modulated by alternative splicing, as is the case for the DNA damage response. Moreover, recent evidence demonstrates that upon a genotoxic insult, classical DNA damage response kinases such as ATM, ATR and DNA-PK orchestrate the gene expression response therefore modulating alternative splicing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA damage; Alternative splicing; ATR; ATM; DNA-PK.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200310

DNA lesions and repair in trypanosomatids infection
Provedor de dados: 74
Autores: Repolês,Bruno M.; Machado,Carlos Renato; Florentino,Pilar T.V.
Abstract Pathological processes such as bacterial, viral and parasitic infections can generate a plethora of responses such as, but not restricted to, oxidative stress that can be harmful to the host and the pathogen. This stress occurs when there is an imbalance between reactive oxygen species produced and antioxidant factors produced in response to the infection. This imbalance can lead to DNA lesions in both infected cells as well as in the pathogen. The effects of the host response on the parasite lead to several kinds of DNA damage, causing alterations in the parasite’s metabolism; the reaction and sensitivity of the parasite to these responses are related to the DNA metabolism and life cycle of each parasite. The present review will discuss the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trypanosoma cruzi; Reactive oxygen species; DNA repair.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200311

Maternal transmission of mitochondrial diseases
Provedor de dados: 74
Autores: Chiaratti,Marcos R.; Macabelli,Carolina H.; Augusto Neto,José Djaci; Grejo,Mateus Priolo; Pandey,Anand Kumar; Perecin,Felipe; Collado,Maite del.
Abstract Given the major role of the mitochondrion in cellular homeostasis, dysfunctions of this organelle may lead to several common diseases in humans. Among these, maternal diseases linked to mitochondrial DNA (mtDNA) mutations are of special interest due to the unclear pattern of mitochondrial inheritance. Multiple copies of mtDNA are present in a cell, each encoding for 37 genes essential for mitochondrial function. In cases of mtDNA mutations, mitochondrial malfunctioning relies on mutation load, as mutant and wild-type molecules may co-exist within the cell. Since the mutation load associated with disease manifestation varies for different mutations and tissues, it is hard to predict the progeny phenotype based on mutation load in the progenitor. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oocyte; Germline; Mitochondrial dynamics; MtDNA; Metabolism.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200308

Cooperation and interplay between base and nucleotide excision repair pathways: From DNA lesions to proteins
Provedor de dados: 74
Autores: Kumar,Namrata; Moreno,Natália C.; Feltes,Bruno C.; Menck,Carlos FM; Houten,Bennett Van.
Abstract Base and nucleotide excision repair (BER and NER) pathways are normally associated with removal of specific types of DNA damage: small base modifications (such as those induced by DNA oxidation) and bulky DNA lesions (such as those induced by ultraviolet or chemical carcinogens), respectively. However, growing evidence indicates that this scenario is much more complex and these pathways exchange proteins and cooperate with each other in the repair of specific lesions. In this review, we highlight studies discussing the involvement of NER in the repair of DNA damage induced by oxidative stress, and BER participating in the removal of bulky adducts on DNA. Adding to this complexity, UVA light experiments revealed that oxidative stress also causes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Base excision repair; Nucleotide excision repair; DNA damage; Protein oxidation; UVA light.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200309

Role of the MAPK pathway in human lung epithelial-like A549 cells apoptosis induced by paraquat
Provedor de dados: 74
Autores: Sun,Da-Zhuang; Song,Chun-Qing; Xu,Yong-Min; Dong,Xue-Song.
Abstract This study aims to investigate the value of mitogen-activated protein kinases (MAPKs) for paraquat (PQ)-induced apoptosis in human lung epithelial-like A549 cells and the specific mechanism. A549 cell apoptosis were induced by PQ. These cells were divided into six groups: control group (cells were cultured in RPMI-1640 medium); SP600125 group (cells were preconditioned with SP600125); SB203580 group (cells were preconditioned with SB203580); PQ group (cells were treated with PQ); SP600125+PQ group (cells were preconditioned with SP600125 following PQ); SB203580+PQ group (cells were preconditioned with SB203580 following PQ). The cell survival rate, apoptosis rate, and activities of caspase-3 and -9 were detected. When compared with the control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paraquat; A549 cells; MAPKs; Mitochondria; Apoptosis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400701

Molecular identification of Mazama species (Cervidae: Artiodactyla) from natural history collections
Provedor de dados: 74
Autores: Mantellatto,Aline Meira Bonfim; González,Susana; Duarte,José Maurício Barbanti.
Abstract Natural history museum collections constitute an invaluable patrimony of biological diversity for analysing the taxa distribution and evolution. However, it is very common to discover taxonomic misidentification in museum collections based on incorrect data. The aim of this research was to identify brocket deer species (Mazama genus) using molecular markers. We collected 199 samples, performed DNA extraction and species identification using a specific mitochondrial marker based on a fragment of cytochrome b (Cytb) for Neotropical deer. We achieved the amplification and sequencing of 77 specimens and verified that 26% of the skulls were wrongly identified. Moreover, in the museum collections 57% of the specimens were only identified as Mazama sp,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytochrome b; Deer; DNA; Mammal; Morphological taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400201

CRZ1 regulator and calcium cooperatively modulate holocellulases gene expression in Trichoderma reesei QM6a
Provedor de dados: 74
Autores: Martins-Santana,Leonardo; Paula,Renato Graciano de; Silva,Adriano Gomes; Lopes,Douglas Christian Borges; Silva,Roberto do Nascimento; Silva-Rocha,Rafael.
Abstract Trichoderma reesei is the main filamentous fungus used in industry to produce cellulases. Here we investigated the role of CRZ1 and Ca2+signaling in the fungus T. reesei QM6a concerning holocellulases production. For this, we first searched for potential CRZ1 binding sites in promoter regions of key genes coding holocellulases, as well as transcriptional regulators and sugar and calcium transporters. Using a nearly constructed T. reeseiAcrz1 strain, we demonstrated that most of the genes expected to be regulated by CRZ1 were affected in the mutant strain induced with sugarcane bagasse (SCB) and cellulose. In particular, our data demonstrate that Ca2+ acts synergistically with CRZ1 to modulate gene expression, but also exerts CRZ1-independent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene regulatory network; Cellulase expression; Transcriptional regulation; Calcium sensing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400401

Transcriptome analyses of Ditylenchus destructor in responses to cold and desiccation stress
Provedor de dados: 74
Autores: Ma,Juan; Gao,Bo; Wang,Rongyan; Li,Xiuhua; Chen,Shulong.
Abstract The objective of this study was to identify molecular responses in Ditylenchus destructor to cold and desiccation by means of transcriptomes analyses. A total of 102,517 unigenes were obtained, with an average length of 1,076 bp, in which 58,453 (57%) had a functional annotation. A total of 1154 simple sequence repeats (SSRs) distributed over 1078 unigenes were detected. Gene expression profiles in response to cold and desiccation stress and the expression of specific stress-related genes were compared. Gene ontology analysis and pathway-based analysis were used to further investigate the functions of the differentially expressed genes. The reliability of the sequencing data was verified through quantitative real-time PCR analysis of 19...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Potato rot nematode; Transcriptome; Tolerance; Differentially expressed genes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100202

Novel insights into chromosome evolution of Charadriiformes: extensive genomic reshuffling in the wattled jacana (Jacana jacana, Charadriiformes, Jacanidae)
Provedor de dados: 74
Autores: Kretschmer,Rafael; Souza,Marcelo Santos de; Barcellos,Suziane Alves; Degrandi,Tiago Marafiga; Pereira,Jorge C.; O’Brien,Patricia C.M.; Ferguson-Smith,Malcolm A.; Gunski,Ricardo José; Garnero,Analía del Valle; Oliveira,Edivaldo Herculano Correa de; Freitas,Thales Renato Ochotorena de.
Abstract The order Charadriiformes comprises three major clades: Lari and Scolopaci as sister group to Charadrii. Until now, only three Charadriiformes species have been studied by chromosome painting: Larus argentatus (Lari), Burhinus oedicnemus and Vanellus chilensis (Charadrii). Hence, there is a lack of information concerning the third clade, Scolapaci. Based on this, and to gain a better understanding of karyotype evolution in the order Charadriiformes, we applied conventional and molecular cytogenetic approaches in a species belonging to clade Scolopaci - the wattled jacana (Jacana jacana) - using Gallus gallus and Zenaida auriculata chromosome-specific probes. Cross-species evaluation of J. jacana chromosomes shows extensive genomic reshuffling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Charadrii; Karyotype; Avian genome; Comparative mapping.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100601

Combining canine mesenchymal stromal cells and hyaluronic acid for cartilage repair
Provedor de dados: 74
Autores: Wits,Maria Inês; Tobin,Gabriela Cabanas; Silveira,Maiele Dornelles; Baja,Karine Gehlen; Braga,Luisa Maria Macedo; Sesterheim,Patricia; Camassola,Melissa; Nardi,Nance Beyer.
Abstract Cell therapy and tissue engineering have been intensively researched for repair of articular cartilage. In this study, we investigated the chondrogenic potential of canine adipose-derived mesenchymal stromal cells (ASCs) combined to high molecular weight hyaluronic acid (HA) in vitro, and their therapeutic effect in dogs with chronic osteoarthritis (OA) associated with bilateral hip dysplasia. Canine ASCs were characterized after conventional 2D culture or 3D culture in HA, showing adequate immunophenotype, proliferation and trilineage differentiation, as well as chondrogenesis after cultivation in HA. ASC/HA constructs were used to treat 12 dogs with OA, sequentially assigned to control, ASC and ASC/HA groups. Animals were examined for clinical,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mesenchymal stromal cells; Hyaluronic acid; Osteoarthritis; Dog.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100701

PACT/PRKRA and p53 regulate transcriptional activity of DMRT1
Provedor de dados: 74
Autores: Fujitani,Kazuko; Otomo,Asako; Nagayama,Yuto; Tachibana,Taro; Kato,Rika; Kawashima,Yusuke; Kodera,Yoshio; Kato,Tomoko; Takada,Shuji; Tamura,Kei; Takamatsu,Nobuhiko; Ito,Michihiko.
Abstract The transcription factor DMRT1 (doublesex and mab-3 related transcription factor) has two distinct functions, somatic-cell masculinization and germ-cell development in some vertebrate species, including mouse and the African clawed frog Xenopus laevis. However, its transcriptional regulation remains unclear. We tried to identify DMRT1-interacting proteins from X. laevis testes by immunoprecipitation with an anti-DMRT1 antibody and MS/MS analysis, and selected three proteins, including PACT/PRKRA (Interferon-inducible double-stranded RNA dependent protein kinase activator A) derived from testes. Next, we examined the effects of PACT/PRKRA and/or p53 on the transcriptional activity of DMRT1. In transfected 293T cells, PACT/PRKRA and p53...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: P53; DMRT1; Germline stem cell; Testis; Xenopus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400702

Resistance mutations of NS3 and NS5b in treatment-naïve patients infected with hepatitis C virus in Santa Catarina and Rio Grande do Sul states, Brazil
Provedor de dados: 74
Autores: Andrade,Elisabete; Rocha,Daniele; Fontana-Maurell,Marcela; Costa,Elaine; Ribeiro,Marisa; Godoy,Daniela Tupy de; Ferreira,Antonio G.P.; Tanuri,Amilcar; Brindeiro,Rodrigo; Alvarez,Patrícia.
Abstract Hepatitis C virus (HCV) infection is a worldwide health problem. Nowadays, direct-acting antiviral agents (DAAs) are the main treatment for HCV; however, the high level of virus variability leads to the development of resistance-associated variants (RAVs). Thus, assessing RAVs in infected patients is important for monitoring treatment efficacy. The aim of our study was to investigate the presence of naturally occurring resistance mutations in HCV NS3 and NS5 regions in treatment-naïve patients. Ninety-six anti-HCV positive serum samples from blood donors at the Center of Hematology and Hemotherapy of Santa Catarina State (HEMOSC) were collected retrospectively in 2013 and evaluated in this study. HCV 1a (37.9%), 1b (25.3%), and 3a (36.8%) subtypes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Direct-acting antivirals; Resistance-associated substitutions; Blood donors; NS3; NS5b.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100107

How history and geography may explain the distribution in the Comorian archipelago of a novel mutation in DNA repair-deficient xeroderma pigmentosum patients
Provedor de dados: 74
Autores: Sarasin,Alain; Munier,Patrick; Cartault,François.
Abstract Xeroderma pigmentosum (XP) is a rare, genetic, autosomal nucleotide excision repair-deficient disease characterized by sun-sensitivity and early appearance of skin and ocular tumors. Thirty-two black-skinned XP from Comoros, located in the Indian Ocean, were counted, rendering this area the highest world prevalence of XP. These patients exhibited a new homozygous XPC mutation at the 3’-end of the intron12 (IVS 12-1G&gt;C) leading to the absence of XPC protein. This mutation, characteristic of the consanguineous Comorian families, is associated with a founder effect with an estimated age of about 800 years. Analysis of mt-DNA and Y-chromosome identified the haplogroups of patients, who are derived from the Bantu people. Although the four Comorian...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA repair deficient diseases; Sun-sensitivity; Comorian Archipelago; Bantu haplogroups; XPC gene.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000200305

Genetic variants in the fat mass and obesity-associated (FTO) gene confer risk for extreme obesity and modulate adiposity in a Brazilian population
Provedor de dados: 74
Autores: Fonseca,Ana Carolina Proença da; Marchesini,Bruna; Zembrzuski,Verônica Marques; Voigt,Danielle Dutra; Ramos,Vivianne Galante; Carneiro,João Regis Ivar; Nogueira Neto,José Firmino; Cabello,Giselda Maria Kalil de; Cabello,Pedro Hernán.
Abstract Obesity is a major public health problem worldwide. It has a complex etiology, influenced by environmental and genetic factors. FTO has been recognized as an important genetic factor for obesity development. This study evaluated the contribution of FTO polymorphisms (rs9939609 and rs17817449) for extreme obesity in terms of the period of obesity onset, anthropometric, and biochemical parameters. The haplotype and the combined effects of FTO risk alleles on obesity susceptibility were evaluated. We investigated 169 normal-weight subjects (body mass index, BMI: 22.8 [21.0; 24.0] kg/m2) and 123 extremely obese individuals (BMI: 47.6 [44.1; 53.1] kg/m2). Genotyping was performed by real time PCR. Our results showed a strong association between FTO...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BMI; Extreme obesity; FTO; Haplotype; Polymorphisms.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100111

Boundaries in metagenomic screenings using lacZα-based vectors
Provedor de dados: 74
Autores: Alves,Luana de Fátima; Borelli,Tiago Cabral; Westmann,Cauã Antunes; Silva-Rocha,Rafael; Guazzaroni,María-Eugenia.
Abstract Metagenomics approaches have been of high relevance for providing enzymes used in diverse industrial applications. In the current study, we have focused on the prospection of protease and glycosyl hydrolase activities from a soil sample by using the lacZα -based plasmid pSEVA232. For this, we used a functional screen based on skimmed milk agar and a pH indicator dye for detection of both enzymes, as previously reported in literature. Although we effectively identified positive clones in the screenings, subsequent experiments revealed that this phenotype was not because of the hydrolytic activity encoded in the metagenomic fragments, but rather due to the insertion of small metagenomic DNA fragments in frame within the coding region of the lacZ...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Functional metagenomics; Protease; Glycosyl hydrolase; False positive clones.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100803

SSD - a free software for designing multimeric mono-, bi- and trivalent shRNAs
Provedor de dados: 74
Autores: Carli,Gabriel José de; Rotela,Abdon Troche; Lubini,Greice; Contiliani,Danyel Fernandes; Candia,Nidia Benítez; Depintor,Thiago S.; Abreu,Fabiano Carlos Pinto de; Simões,Zilá Luz Paulino; Ríos,Danilo Fernández; Pereira,Tiago Campos.
Abstract RNA interference (RNAi) is a powerful gene silencing technology, widely used in analyses of reverse genetics, development of therapeutic strategies and generation of biotechnological products. Here we present a free software tool for the rational design of RNAi effectors, named siRNA and shRNA designer (SSD). SSD incorporates our previously developed software Strand Analysis to construct template DNAs amenable for the large scale production of mono-, bi- and trivalent multimeric shRNAs, via in vitro rolling circle transcription. We tested SSD by creating a trivalent multimeric shRNA against the vitellogenin gene of Apis mellifera. RT-qPCR analysis revealed that our molecule promoted a decrease in more than 50% of the target mRNA, in a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene silencing; SiRNA; Multimeric; ShRNA; Free software.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100802

YUCCA4 overexpression modulates auxin biosynthesis and transport and influences plant growth and development via crosstalk with abscisic acid in Arabidopsis thaliana
Provedor de dados: 74
Autores: Munguía-Rodríguez,Aarón Giovanni; López-Bucio,Jesús Salvador; Ruiz-Herrera,León Francisco; Ortiz-Castro,Randy; Guevara-García,Ángel Arturo; Marsch-Martínez,Nayelli; Carreón-Abud,Yazmín; López-Bucio,José; Martínez-Trujillo,Miguel.
Abstract Auxin regulates a plethora of events during plant growth and development, acting in concert with other phytohormones. YUCCA genes encode flavin monooxygenases that function in tryptophan-dependent auxin biosynthesis. To understand the contribution of the YUCCA4 (YUC4) gene on auxin homeostasis, plant growth and interaction with abscisic acid (ABA) signaling, 35S::YUC4 seedlings were generated, which showed elongated hypocotyls with hyponastic leaves and changes in root system architecture that correlate with enhanced auxin responsive gene expression. Differential expression of PIN1, 2, 3 and 7 auxin transporters was detected in roots of YUC4 overexpressing seedlings compared to the wild-type: PIN1 was down-regulated whereas PIN2, PIN3 and PIN7...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arabidopsis; Auxin; Abscisic acid; YUCCA4; Root growth; Germination.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100302

Biochemical diagnosis of mucopolysaccharidosis in a Mexican reference center
Provedor de dados: 74
Autores: Mendoza-Ruvalcaba,Sandra del Carmen; Brambila-Tapia,Aniel Jessica Leticia; Juárez-Osuna,Jesús Alejandro; Silva-José,Thiago Donizete Da; García-Ortiz,José Elías.
Abstract Mucopolysaccharidoses (MPS) are a group of genetic disorders, each resulting from the deficiency of one of the lysosomal enzymes that catabolizes mucopolysaccharides. For the accurate diagnosis of the disease, the quantification of a specific enzymatic activity is needed. In the present study, we analyzed seven MPS over several periods of time ranging from 2 to 5 years in a reference center in Mexico. During this time, a total of 761 samples belonging to 505 individuals with suspected MPS were analyzed. A total of 198 (26.01%) positive results were found. Among these, MPS IVA accounted for the highest frequency of positive results (49.10%), followed by MPS III (17.69%, IIIA: 11.80% and IIIB: 5.89%). Adjusting for the number of births per year, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mucopolysaccharidoses; Leukocyte enzymatic activity; Fluorometric assay; Mexico.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100106

Tomato production in hydroponic system using different agrofilms as greenhouse cover
Provedor de dados: 75
Autores: Marques,Douglas José; Matheus Filho,Edmur; Bianchini,Hudson C; Veroneze Junior,Valdir; Santos,Breno Régis; Carlos,Lanamar de A; Silva,Ernani Clarete da.
ABSTRACT Protected cultivation has increased over the years. More studies on the benefits of using photoselective agrofilms are necessary. The choice of material to cover the greenhouse is a decisive factor for crop development and production. The aim of this study was to evaluate the effect of diffuser and blue-colored agrofilms on the production of different tomato cultivars of indeterminate growth habit under NFT hydroponic system. A completely randomized design in a 2x3 factorial scheme (two environments and three cultivars) was used: two agrofilm types (blue and diffuser) and 3 cultivars (Monterrey, Arendell and Totalle). Each plot consisted of 30 plants per treatment, with four replicates. Commercial tomato seedlings of indeterminate growth habit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Lycopene; Gas exchange; Radiation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100058

Are there differences in heterozygosity of strains obtained from intercrossed and self-fertilized onion plants?
Provedor de dados: 75
Autores: Luz,José Magno Queiroz; Machado,Daniel Lucas Magalhães; Maciel,Gabriel Mascarenhas; Freitas,Joelson André de; Oliveira,Roberta Camargos de.
ABSTRACT The commercial use of onion hybrids is preferred by producers. In contrast, the production of hybrid onion seeds is extremely inefficient. This is due to the use of lineages obtained by successive self-fertilizations assuming the effect of inbreeding depression per se. Therefore, it is necessary to understand new alternatives to reduce the effect of inbreeding depression in the strains. The objective of this study was to evaluate possible differences in polymorphism and levels of heterozygosity of strains obtained from intercrossed and self-fertilized plants. Twelve onion populations belonging to Bayer’s breeding program (Granex, IPA-1, IPA-2 and IPA-3) were used, obtained by self-fertilization of one plant, intercrossing of two plants or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Hybrid; Onion polymorphism; Genotyping; Primers.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300274

Application techniques of pesticides in greenhouse tomato crops
Provedor de dados: 75
Autores: Dario,Gustavo; Precipito,Laís Maria B; Oliveira,João Victor de; Lucilhia,Leonardo Vinicius da S; Oliveira,Rone B de.
RESUMO Devido à carência de informações sobre tecnologia de aplicação na horticultura, objetivou-se com essa pesquisa avaliar o efeito de três técnicas de aplicação em diferentes partes do dossel do tomateiro cultivado em ambiente protegido. As técnicas avaliadas foram 1= Lança manual com duas pontas de jato cone vazio, JA-2 (700 kPa), taxa de aplicação de 618 L ha-1; 2= Barra vertical com seis pontas de jato cone vazio, ATR 0.5 (700 kPa), taxa de aplicação de 493 L ha-1; 3= Barra vertical com seis pontas de jato plano simples, AXI 11002 (400 kPa), taxa de aplicação de 1442 L ha-1. Como indicadores de qualidade da aplicação, foram mensurados o depósito relativo (quantitativo) e a cobertura (qualitativa) das folhas do tomateiro nas posições de coleta...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Tecnologia de aplicação; Depósito; Cobertura.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200146

Selection of Chilean potato clones for tuber yield, frying quality, plant vigor and vegetative cycle
Provedor de dados: 75
Autores: Silva,Giovani O da; Castro,Caroline M; Azevedo,Fernanda Q; Pereira,Arione S; Carvalho,Agnaldo DF de; Bortoletto,Antonio C; Pinheiro,Jadir B.
ABSTRACT The objective of this study was to evaluate the yield potential, frying quality, plant vigor, and vegetative cycle of Chilean potato clones, aiming to identify those with potential to become new cultivars or to be used in breeding programs. The experiments were conducted in Pelotas-RS and Canoinhas-SC, Brazil, in spring 2017. A set of 37 advanced potato clones belonging to the Agricultural Research Institute of Chile (INIA) was compared to commercial cultivars Agata, Asterix and Atlantic. A randomized complete block design with three replications of two rows with 10 plants each was used. Tuber yield, frying quality, plant vigor and vegetative cycle traits were evaluated. The data were submitted to analysis of variance, test for grouping means, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Frying color; Specific gravity; Early maturity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200217

Evaluation of purple-fleshed sweetpotato genotypes for root yield, quality and pest resistance
Provedor de dados: 75
Autores: Melo,Raphael Augusto de C; Silva,Giovani Olegario da; Vendrame,Larissa PC; Pilon,Lucimeire; Guimarães,Jorge Anderson; Amaro,Geovani Bernardo.
ABSTRACT Production of purple-fleshed sweetpotatoes, source of anthocyanins, pigments with high antioxidant activities, is expected to be extended during the upcoming years, as there is a strong trend to market products promising improved health. This study aimed to evaluate yield, postharvest quality and pest resistance of roots of purple-fleshed sweetpotatoes. Six genotypes (BGBD 0005, BGBD 0080, BGBD 1261, BGBD 1399, BGBD 1402 and BGBD 1405) and the cultivars Beauregard and Brazlândia Roxa as controls were evaluated during two seasons 2018 (Experiment 1) and 2019 (Experiment 2), in Brasília-DF, Brazil. The experiments were conducted in a complete randomized blocks design with four replications, with experimental plots consisting of two rows of six...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomea batatas; Marketable roots; Appearance; Insect damage; Soluble solids; Dry matter content.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400439

Selection indexes for agronomic and chemical traits in segregating sweet corn populations
Provedor de dados: 75
Autores: Silva,Marina F e; Maciel,Gabriel M; Finzi,Rafael R; Peixoto,Joicy Vitoria M; Rezende,Wender S; Castoldi,Renata.
ABSTRACT In the sweet corn breeding, the selection of superior genotypes should consider many traits simultaneously. The best strategy to select traits simultaneously is through selection indexes. This study aimed to compare the efficiency of different selection indexes based on characteristics with direct effect on grain yield in segregating sweet corn populations. Eighteen traits were evaluated in eight sweet corn genotypes on generation F3. Data were submitted to analyses of variance and path coefficient analyses. We compared the direct and indirect selection and the following indexes: base, classical, desired gains and genotype-ideotype distance. According to path coefficient analyses, the traits which showed a direct effect about grain yield (GY) were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays subsp. sacharatta; Plant breeding; Selection gain; Simultaneous selection of characteristic.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100071

Yield and quality of carrot cultivars related to the harvest time
Provedor de dados: 75
Autores: Carvalho,Agnaldo Ferreira de; Silva,Giovani Olegario da; Magalhães,Caroline da Cruz.
ABSTRACT The knowledge about harvest time in carrots is important to determine the moment when the farmer will be able to obtain higher yield and quality of roots. Thus, this work aimed to verify the moment of harvest, aiming to maximize yield and the quality of roots. From November 2018 to March 2019, three cultivars, Brasília, BRS Planalto and HX4098 were evaluated in Brasília-DF in DBC design with three replications, in a split plot scheme, in which the treatments of the subplots were the harvest times at 80, 90, 100, 110 and 120 days after sowing (DAS). The experiment was installed on November 20, 2018, in 1 m2 useful area seedbeds. Sowing was done manually, in transverse grooves, with double spacing rows 10 x 20 cm, and 5 cm spacing between plants....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daucus carota; Root yield; °Brix; Root length; Root diameter.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300319

Nutrient uptake rate for yard long bean
Provedor de dados: 75
Autores: Cunha,André Luiz B da; Chaves,Francisco Célio M; Kano,Cristiaini; Braga,Ítalo G; Oliveira,Marcelo R de.
ABSTRACT Knowing about the nutrient uptake during plant cycle is essential for nutrient management decisions. We evaluated dry matter accumulation and nutrient demand, and it to determine the uptake curves, the ideal phase for management, and element extraction order for yard long beans. The experiment was carried out in a greenhouse. The experimental design was completely randomized, with eight collection periods, at 10, 20, 30, 40, 50, 60, 70 and 80 days after emergence (DAE), and four replicates. For each period, destructive sampling was performed and the sample’s dry matter content was determined, so that it could be used to estimate macro- and micronutrient contents. When significant, nonlinear models were adjusted to explain dry matter accumulation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata susbp. sesquipedalis; Macronutrient and micronutrient accumulation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200175

Performance of advanced potato genotypes in organic and conventional production systems
Provedor de dados: 75
Autores: Ragassi,Carlos Francisco; Carvalho,Agnaldo DF de; Silva,Giovani Olegário da; Pereira,Gabriel Emiliano; Pereira,Arione da S.
ABSTRACT Potato is responsive to intensive agricultural input use; however, it can be produced in less intensive production systems (such as the organic system) by using appropriate production techniques and genotypes adapted to this system. This study aimed to evaluate the performance of advanced potato genotypes for tuber yield under conventional and organic production systems, in order to select potential genotypes to become new cultivars adapted to these systems. Fifteen advanced potato clones and two controls were evaluated under organic and conventional production systems, in 2016 and 2017, in Brasília-DF, Brazil. The experimental design was randomized blocks with three replicates and plots composed of two rows with 10 plants each, spaced 0.35 m...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Agronomic evaluation; Production systems.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100053

Virus-free garlic: yield and commercial classification as a function of plant spacing and seed size
Provedor de dados: 75
Autores: Marodin,Josué C; Resende,Francisco V; Resende,Juliano TV de; Gabriel,André; Zeist,André R; Constantino,Leonel V; Sanzovo,Alisson WS.
ABSTRACT Studies on the interaction between garlic plant density and virus-free seed size are scarce in Brazil. Thus, this study was installed to evaluate the effect of plant spacing and seed size on garlic traits and yield for infected and virus-free bulbs. Treatments were arranged in a randomized block design and 2x5x3 factorial combination [infected and virus-free bulbs, five plant spacings (210, 260, 300, 360, and 390 cm2 per plant), and three bulbous seed sizes (sieve one, two, and three)]. The highest bulb yield was observed for virus-free seeds at a plant spacing of 390 cm2 plant-1, while the highest commercial yield was verified for 210 cm2 plant-1 spacing. The combination of virus-free seeds, larger bulbs, and 332 cm2 plant-1 spacing promoted the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium sativum; Degeneration; Plant density; Vegetative propagation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300295

Ammonium/nitrate ratio affects the growth and glucosinolates content of pakchoi
Provedor de dados: 75
Autores: Yang,Jing; Zhu,Biao; Ni,Xiaolei; He,Yong.
ABSTRACT Nitrogen (N) strongly affects plant growth. However, little is known about the effects of the ammonium/nitrate ratio on pakchoi (Brassica rapa), especially its glucosinolates (GSs) contents which are involved in plant defense and many of them benefit to human health. The aim of this study was to evaluate the effects of a constant N supply (8 mM) but with five ammonium/nitrate ratios (namely 0/8 mM, 2/6 mM, 4/4 mM, 6/2 mM and 8/0 mM) on the growth of pakchoi in a hydroponic system in 2 years. In both years, a higher biomass (dry weight) was in the 4/4 and 2/6 ammonium/nitrate treatments (2.3 and 2.2-fold compared to 8/0, respectively), with no significant difference in biomass between these two treatments. The biomass then decreased with increasing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica rapa; Biomass; Nitrogen form; Secondary metabolites.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300246

Control of Alternaria brassicicola with thermotherapy and propolis and effect on the physiological quality of kale seeds
Provedor de dados: 75
Autores: Cardoso,Antonio Ismael Inácio; Piacenti,Laura Z; Lino,Priscilla R; Padovan,Iasmim M; Kronka,Adriana Z.
ABSTRACT In the organic production system, the use of agrochemicals for seed treatment is prohibited. This study was carried out to evaluate the effect of heat treatment and propolis on the germination and vigor of kale seeds and the effect on the control of Alternaria brassicicola. In the treatment with wet thermotherapy, three temperatures (50, 55 and 60°C) were evaluated in separated experiments. For each temperature, five immersion times [0 (control), 15, 30, 45 and 60 minutes] were evaluated. In the dry thermotherapy treatment, seeds were submitted to constant 70ºC temperature and five times [0 (control), 24, 48, 72 and 96 hours] were evaluated. In the treatment with propolis, six concentrations (0.0, 0.2, 0.4, 0.6, 0.8 and 1.0%) were studied, with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica oleracea var. acephala; Alternative treatments; Heat treatment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400363

Distinctness, uniformity and stability and GT biplot tests for the selection of snap bean lines
Provedor de dados: 75
Autores: Sant’Anna,Camila QSS de; Oliveira,Tâmara Rebecca A de; Gravina,Geraldo de A; Cruz,Derivaldo P da; Gomes,Andrea BS; Daher,Rogério F; Vivas,Marcelo; Oliveira,Gustavo Hugo F de; Entringer,Geovana C; Coelho,Fábio C.
ABSTRACT The lack of records about snap bean cultivars is one of the obstacles that has led to a yield gap and low prominence of the crop. This work aimed at indicating snap bean lines obtained by the Breeding Program of the Universidade Estadual do Norte Fluminense (UENF) to assess their performance and to apply for a certificate of plant variety protection. The study was managed using a randomized block design with three replicates in a greenhouse at the Research Support Unit of the UENF. Nine candidate lines were compared to the commercial cultivar “Topseed Blue Line” in accordance with 56 descriptors set by the National Plant Variety Rights. All lines presented themselves as homogeneous. The L31 line provided a total of 30 different descriptors of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Multicategorical descriptors; Multivariate analysis; New technological products.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400370

Chemical stress reduces the lateral shoot growth in vernalized garlic
Provedor de dados: 75
Autores: Gabriel,André; Resende,Juliano TV; Marodin,Josué C; Matos,Rafael de; Zeist,André R; Maciel,Cleber Daniel G.
ABSTRACT Brazil’s low garlic productivity is attributed, mainly to the lateral shoot growth, a physiological anomaly characterized by early lateral shoot growth of cloves in noble group garlic cultivars. Considering the aforementioned information, the aim was to evaluate the occurrence of lateral shoot growth and productivity characteristics in garlic plants, cv. Chonan, subject to herbicide chemical stress. In order to do so, an experiment was conducted in outlining randomized blocks in a 3x5 factorial scheme, constituted by three herbicides (paraquat 500 g ha-1; ammonium gluphosinate 400 g ha-1 and glyphosate 720 g ha-1) and five subdoses (0, 5, 10, 15 and 20% of the minimum recommended dose of each herbicide). The electron transport rates (ETR) were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium sativum; Herbicide; Electron transport rate.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100041

Agronomic performance of arugula/nira intercropping in different cultivation arrangements
Provedor de dados: 75
Autores: Guimarães,Marcelo de Almeida; Lima Neto,Benedito Pereira; Lemos Neto,Hozano de Souza; Hendges,Ana Régia Alves de Araújo; Viana,Caris dos Santos; Rabelo,Janiquelle da Silva.
ABSTRACT Spatial planning of cultivation arrangements is essential to ensure the superiority of intercropping when compared with monocrop. Thus, the aim of this study was to evaluate the agronomic performance of arugula/nira intercropping in different cultivation arrangements. The experiment was carried out in a randomized block design, in a split plot scheme, the plots represented the cultivation arrangements and the subplots the production cycles (winter and spring). The arrangements were T1= arugula monoculture; T2= two rows of arugula alternating with three rows of nira (2R:3N); T3= two rows of arugula alternating with two rows of nira (2R:2N); T4= two rows of arugula alternating with one row of nira (2R:1N); T5= nira monoculture. Productive traits and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eruca sativa; Allium tuberosum; Efficient use of land; Productivity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300329

Salicylic acid treatments induce resistance to Tuta absoluta and Tetranychus urticae on tomato plants
Provedor de dados: 75
Autores: Pulga,Paulo Sérgio; Henshel,Juliane Maciel; Resende,Juliano Tadeu Vilela de; Zeist,André Ricardo; Moreira,Aline Fabiana Paladini; Gabriel,André; Silva,Mayara Barbosa; Gonçalves,Leandro Simões Azeredo.
ABSTRACT This study was performed to evaluate the effect of exogenous application of salicylic acid as a resistance inducer to two-spotted spider mite and tomato pinworm on tomato genotypes. Bioassays were carried out in three commercial genotypes (‘Redenção’, ‘Giuliana’, and ‘Alambra’) and one wild genotype (Solanum habrochaites var. hirsutum, accession PI-127826). Average distance travelled by the two-spotted spider mite and number of eggs deposited over the leaflets of the genotypes were investigated. Concerning pinworm bioassay, number of eggs, leafminers on leaflet surface and percentage of leaf area consumed by leafminers were evaluated using a scanner. Furthermore, severity of attack to plants was evaluated by score scale for damages, types of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum habrochaites var. hirsutum; Tuta absoluta; Tetranychus urticae; Methyl salicylate; Induced resistance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300288

Characterization of lettuce genotypes for resistance to root-knot nematodes (Meloidogyne spp.)
Provedor de dados: 75
Autores: Pinheiro,Jadir B; Silva,Giovani Olegário da; Biscaia,Danielle; Macedo,Amanda G; Suinaga,Fábio A.
ABSTRACT Genetic resistance is the most suitable mechanism to control root-knot nematodes in lettuce. However, information about the resistance levels of currently used lettuce cultivars is scarce in the literature. Thus, the objective of this research was to characterize lettuce cultivars for resistance to root-knot nematodes Meloidogyne incognita (Mi) and M. javanica (Mj), aiming the identification of resistance sources for breeding, and to transfer information to the productive sector. We evaluated 97 lettuce genotypes in tree trials. In the first one (preliminary assessment), 92 lettuce genotypes were inoculated simultaneously with M. incognita race 1 and M. javanica species, 17 days after sowing. The gall index (GI) was evaluated 41 days after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; M. incognita; M. javanica; Reproduction factor.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300239

Comparison of chili pepper breeding populations for agronomic traits and polygenic resistance to Phytophthora blight
Provedor de dados: 75
Autores: Arpaci,Bekir Bülent; Karataş,Kerim.
ABSTRACT Belonging to the Oomycete class, Phytophthora capsici has wide range of host profile and is responsible for many devastating diseases in many countries. In addition to time consuming problem for transferring resistance to susceptible varieties, backcrossing method causes losing of genes providing resistance to susceptible varieties. In this study transferring P. capsici resistance genes to susceptible chili pepper lines was aimed during the extensive breeding period and resistant lines were confirmed by marker assistance. Two different breeding populations from CM334 and PM217 were compared by stem inoculation test to determine receptivity, inducibility, and stability resistance component. CM334 was found more effective for transferring all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Phytophthora capsici; Resistance component; Molecular markers; Crop breeding.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100012

Sources and splitting of the organic fertilization in top dressing in cabbage production
Provedor de dados: 75
Autores: Cardoso,Antonio Ismael Inácio; Oliveira,Jéssica B; Lanna,Natália BL; Candian,Joara S; Castro,Jean Lucas M.
ABSTRACT Although there exist researches about fertilization in top dressing in the production of cabbage, these are usually made with inorganic fertilizers, being rare the researches with organic fertilization in top dressing in the production of most vegetables. The objective was to evaluate the effect of different splitting of two organic fertilizers in top dressing in the production of cabbage. Six treatments were evaluated, with four replications in randomized block design. The six treatments were the result of the factorial 3x2, with three types of splitting (1/3+1/3+1/3; 4/6+1/6+1/6; 1/6+4/6+1/6 of the total dose in each application) and two organic fertilizers (castor bean cake and organic compost). The total dose of each fertilizer was calculated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica oleracea var capitata; Nitrogen; Castor bean cake; Organic compost.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200230

A simple and fast sampling method for assessing chemical and nutritional characteristics of pumpkins
Provedor de dados: 75
Autores: Cardoso,Bruno Trindade; Ramos,Semíramis Rabelo Ramalho; lves,Ricardo Elesbão A; Ledo,Carlos Alberto da Silva; Santos,Antonina dos; Santos,Hister Maria Matias dos.
ABSTRACT In the chemical and nutritional analyses of pumpkin, the size of bulk sample recommended by the method of reference, makes the process time consuming and difficult to execute. The purpose of the present study was to evaluate different sampling methods to indicate the most suitable one to replace reference method to determine the levels of total carotenoids, total soluble solids, and moisture in pumpkin. A completely randomized design was used with four treatments and 18 replications. The proposed methods consisted basically in changing the way of taking bulk samples from the fruits: cylinders method, quartile method, and the slice method. Samples obtained by proposed methods were analyzed for moisture content, total carotenoids and total soluble...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucurbita moschata; Food analysis; Carotenoid; Sampling procedure; Quartering.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300261

Inoculation of diazotrophic bacteria in chicory
Provedor de dados: 75
Autores: Braulio,Caliane da S; Nóbrega,Rafaela SA; Silva,Luís Cláudio V; Correia,Andreza de J; Sousa,Cheila BC de; Pereira,Elisângela G.
ABSTRACT Inoculating crops with diazotrophic bacteria constitutes a feasible biotechnological tool to reduce or even avoid the use of nitrogen fertilizers and to improve the nutritional status of crops. However, the potential use of such technology is limited due to the lack of studies in diverse vegetable crops. We evaluated the production of chicory (Cichorium intybus) in response to inoculation with diazotrophic bacteria in two soil classes. The experiments were performed under greenhouse conditions and under a completely randomized design. The treatments were constituted by strains UFRB FA34C2-2, UFLA 03-84 and INPA 0311B, and two control treatments (devoid of bacterial inoculation and with and without nitrogen fertilization). Two experiments were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichorium intybus; Growth promoting rhizobacteria; Organic production; Sustainability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200185

What is the profile of strawberry producers in the south Brazilian region and what do they think about substrate cultivation?
Provedor de dados: 75
Autores: Alves,Marina C; Matoso,Ester S; Peil,Roberta MN.
ABSTRACT Strawberry production in the south part of Rio Grande do Sul has already been consolidated and, recently, this production has undergone several changes in its cultivation system. The profile of the strawberry producers in this region, and the cultivation systems they use, considering socioeconomic and technological characterization, had not been formally studied since then. This study aimed to characterize the socioeconomic profile of producers, as well as the strawberry production system. Data were obtained through a questionnaire, with questions related to the socioeconomic aspects of the producers and the technical aspects of their cultivation systems. Most of the interviewed producers are male, 26-50 years old, owing up to 20 hectares land,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria ananassa; Socioeconomic status; Family farming.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400428

Selection of kale accesses to dehydration post-harvest by model identity test
Provedor de dados: 75
Autores: Silva,Luana Cristina R da; Azevedo,Alcinei M; Pedrosa,Carlos E; Andrade Júnior,Valter C; Valadares,Nermy R; Araújo,Vanessa V de; Ferreira,Evander A.
ABSTRACT The selection of kale genotypes more resistant to dehydration is important, since this product is marketed fresh and characterized as perishable. For the post-harvest study, the adjustment of regression models is useful. However, when there are many treatments, it is difficult to identify the superior one through the graphical representation of the curves. In this sense, the model identity test groups the curves establishing genotypes that have statistically similar behavior. Thus, we aimed to select kale accesses for post-harvest dehydration using the model identity test. The accumulated loss of fresh matter of 22 kale genotypaes was evaluated, being 19 of the germplasm bank of the UFVJM and three commercial cultivars (COM). The model identity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica oleracea var. acephala; Loss of fresh matter; Curve grouping; Shelf life; Conservation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400378

Multicategorical descriptors for creole genotypes of Amazon chicory (Eryngium foetidum)
Provedor de dados: 75
Autores: Gomes,Rafaelle F; Gonçalves,Viviane P; Arruda,Renata da S; Santos,Lucas da S.
ABSTRACT The knowledge concerning genetic variability of creole genotypes by using morphological descriptors in species such as Amazon chicory is crucial to quantify local diversity and protect improved cultivars. Accordingly, this study aimed to propose multicategory leaf morphological descriptors for Amazon chicory species. To achieve that, an experiment was arranged in randomized block design with four repetitions. The treatments comprised eight creole genotypes of Amazon chicory, which were obtained from local producers’ collection. The proposed multi-categorical descriptors are based on limb shape, leaf apex shape, leaf base shape, leaf margin, bract consistency, and bract margin traits. Once the multicategorical clustered data were obtained, they...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pará chicory; Landraces; Genetic variability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300334

Chicory yield influenced by seedling quality and growing environment
Provedor de dados: 75
Autores: Souza,Luís Gustavo de S e; Ferreira,Regina Lúcia F; Araújo Neto,Sebastião Elviro de; Silva,Nilciléia M da; Uchôa,Thays L; Almeida,Waldiane A de.
ABSTRACT The objective of this work was to evaluate the quality of chicory seedlings in organic substrata and their influence on yield and commercial yield in a protected environment and under direct sunlight. Seedling and field production experiments were conducted in a randomized block design with four blocks. In the first experiment, seedlings were produced on substrata by alternating the conditioner: 1) dry coconut fiber + blend (soil, organic compost, charcoal); 2) carbonized rice husk + blend; 3) crushed ouricuri stem + blend; 4) decomposed kapok stem + blend and 5) commercial substratum. Sufficient seedlings were produced for the evaluations and transplantation. In the field phase, two experiments were evaluated, one in a protected environment and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eryngium foetidum; Organic agriculture; Alternative substratum; Protected cultivation; Organic residues.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200224

Potassium sources and doses in coriander fruit production and essential oil content
Provedor de dados: 75
Autores: Freitas,Marta Simone Mendonça; Gonçalves,Ygor de Souza; Lima,Thaísa Capato; Santos,Paulo Cesar dos; Peçanha,Diego Alves; Vieira,Marlene Evangelista; Carvalho,Almy Júnior Cordeiro de; Vieira,Ivo José Curcino.
ABSTRACT Potassium (K) is one of the most required agricultural crop macronutrients, with potassium chloride being the most applied source. However, this fertilizer is not recommended for several crops due to its high chlorine content, promoting final product quality losses, thus being replaced by potassium sulphate. The aim of the present study was to evaluate the production and macronutrient, essential oil and linalool contents of coriander fruits submitted to different potassium sources and doses. The research was performed in a greenhouse, in plastic 46 kg boxes applying a mixture of soil and sand as substrate. The experimental design was of randomized blocks, applying a 2x4 factorial arrangement, with two potassium sources (potassium chloride and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coriandrum sativum; Nutrients; Secondary metabolism; Linalool.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300268

Effect of humus and soil substrates on production parameters and quality of organic strawberries
Provedor de dados: 75
Autores: Hoehne,Lucélia; Altmayer,Taciélen; Martini,Maira C; Finatto,Jordana; Brietzke,Débora T; Kuhn,Daniel; Schweizer,Ytan A; Vettorello,Gabriela; Cordeiro,Sabrina G; Ethur,Eduardo M; Freitas,Elisete M de; Severo Filho,Wolmar A.
ABSTRACT This study aims to verify the most suitable substrate formulation based on proportions of earthworm humus and soil to improve the quality of organic strawberries. Vermicomposting generated humus and strawberry seedlings were planted in different humus:soil ratios: (0:100; 20:80; 40:60; 60:40; 80:20 and 100:0, respectively). The proportional conditions were characterized after planting and after 60-day cultivation, plants were harvested, and chemical characterizations of the soil and plants were made. We verified that with an increase of humus content in the substrate, an increase in values of N, P, K, pH and organic matter in soil and dry and fresh mass in shoot area of the plants were noticed. In relation to fruits, pH, humidity and sodium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria x ananassa; Húmus; Fertilizer; Nutrients.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100101

Prediction of genetic gains through selection of sweet potato accessions
Provedor de dados: 75
Autores: Vargas,Pablo F; Otoboni,Maria Eduarda F; Lopes,Beatriz G; Pavan,Bruno E.
ABSTRACT Due to the high genetic variability found in sweet potato and a low number of cultivars available on the market, there are opportunities for necessary improvements in crop breeding programs. The selection indexes are a favorable strategy to achieve higher yields through genetic gains obtained with the future population. Thus, the objective was to evaluate the selection gain of agronomic characters from sweet potato accessions for root production and dual-aptitude. 95 accessions and two commercial cultivars (Braslandia Branca and Brazlândia Roxa) were evaluated. A randomized block design with three replications of ten plants per plot was used. The index proposed by Mulamba &amp; Mock was used to select superior individuals. The evaluated population...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomoea batatas; Plant breeding; Genetic variability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400387

Application forms and mode of action of biocontroller in the management of Meloidogyne incognita in tomato
Provedor de dados: 75
Autores: Frederic,Jean B; Costa,Cândido A da; Rocha,Fernando da S; Fernandes,Maria de Fátima G.
ABSTRACT Mixture of antagonist agents and form of application may influence in the control of root-knot nematodes. Thus, the aim of this work was to study the action of a biological product based on enzyme mixtures, Bacillus sp. and Trichoderma sp., at different concentrations on hatching, motility, mortality and reproduction of Meloidogyne incognita in tomato, considering two ways of application of the product. Eggs and second-stage juveniles (J2) of M. incognita were placed in biological product solutions at concentrations: 0, 1.25, 2.5, 5, 10, 20 and 40 g L-1. The same concentrations were applied to planting pits or to the soil surface. Afterwards, 3,692 eggs of M. incognita were inoculated in tomato crop. A significant reduction in J2 hatching of M....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus spp.; Trichoderma longibrachiatum; Root-knot nematodes; Enzymes; Biological control.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300254

In vitro culture of jambu with different growth regulators
Provedor de dados: 75
Autores: Almeida,Susan P; Souza,Joanne MM; Amorim,Andredy MT; Gusmão,Sérgio AL de; Souza,Rodrigo ORM; Santos,Alberdan S.
ABSTRACT The aim of this study was to establish the best concentrations of growth regulators for in vitro cultivation of jambu for a subsequent elaboration of an efficient micropropagation protocol. After sterilized, the seeds were inoculated on different media (MS, ½MS and water-agar) for in vitro germination. Nodal segments of in vitro germinated jambu seedlings were used as explants in the micropropagation with different concentrations of 6-benzylaminopurine (BAP) (0.0; 0.125; 0.25; 0.50 and 0.75 mg L-1) and callus induction with 2.4- dichlorophenoxyacetic acid (2.4-D) (0.0; 0.25; 0.50; 0.75 and 1.0 mg L-1) on Murashige &amp; Skoog’s (MS) medium. The highest germination rates were obtained on MS medium with better seedling development and greater height...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acmella oleracea; Micropropagation; Callus induction; BAP; 2.4-D; Nodal segments.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200134

Yacon planting density in intercropping with corn under banana orchard
Provedor de dados: 75
Autores: Teixeira,Ariany das Graças; Oliveira,Fábio Luiz de; Parajara,Magno do C; Zucoloto,Moises; Dalvi,Leandro P.
ABSTRACT Yacon is a crop which requires development of strategies for its cultivation. One of the possibilities is to introduce yacon in perennial crops using intercropping system. The aim of this study was to evaluate different planting densities of yacon grown in intercropping with corn under banana orchard, verifying its development and production. At 90 days after planting, morphological and physiological evaluations were done, at 210 days yacon was harvested, and its productivity calculated using the fresh tuberous root production. The Area Equivalence Index (IEA), and the Relative Contribution of Crops (CRC) to IEA were calculated. Yacon development and production were hampered by the corn intercropping (under the banana orchard), regardless of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Smallanthus sonchifolius; Spacing; Polyculture; Shading.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100083

Growth and production of basil under different luminosity and water replacement levels
Provedor de dados: 75
Autores: Oliveira,Rívia de Souza Vaz; Salomão,Leandro Caixeta; Morgado,Hélber Souto; Sousa,Cleiton Mateus; Oliveira,Henrique Fonseca E de.
ABSTRACT Basil is used as spice and for medicinal purposes. Its growth is influenced by environmental factors, mainly soil moisture and air temperature. Thus, this study was installed to evaluate growth and production of basil under different levels of luminosity and water replacement. The experimental design was completely randomized, with six replicates, arranged in split plot scheme, with three luminosity levels in the plots (full sun, 50% and 70% shading) and four water replacement levels in the subplots (25, 50, 75 and 100% ETc). We evaluated plant height, stalk diameter, number of leaves and branches, root system volume, the largest root length, fresh and dry mass of roots and leaves. Data were submitted to variance analysis to observe significant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ocimum basilicum; Shading; Water deficit.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300324

Physiological potential of onion seeds stored in different packings and environments
Provedor de dados: 75
Autores: Hornke,Nander F; Gadotti,Gizele I; Capilheira,André F; Cavalcante,Jerffeson A; Nadal,Ariele P; Silva,Joseano G.
ABSTRACT Storage is a fundamental step for maintaining seed quality after processing. Thus, in this study, we evaluated the physiological potential of onion seeds stored in different packings and environments. Impermeable, semi-permeable and permeable packings were tested under natural environment conditions (+19ºC), cold and dry chamber (10±2ºC and 33% RH) and cold chamber (16±2ºC and 60% RH), at 0, 90, 180, 270 and 360 days. The design was completely randomized in a 3x3x5 factorial scheme, with three replicates. In order to evaluate emergency in field, a 3x3 factorial arrangement (packing x environment) was adopted. Onion seeds maintained their physiological quality when stored in impermeable packing for 360 days, regardless of the environment. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Hermetic packages; Gas exchange.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300312

Potassium chloride fertilization of potatoes: nutrient uptake rate and tuber yield of cultivars Ágata and Atlantic
Provedor de dados: 75
Autores: Luz,José Magno Q; Oliveira,Roberta C; Lana,Regina Maria Q; Silva,João Ricardo R; Rebouças,Tiyoko Nair H.
ABSTRACT Potassium (K) is the nutrient taken up in the greatest quantity by the potato plant. Obtaining information about the relationship between tuber yield and K application rate allows improvements in fertilizer use efficiency. We aimed to evaluate the variation in potassium fertilizer doses in uptake rate of other nutrients and in potato tuber yield. The experiments were carried out in Unaí-MG testing cultivars Ágata and Atlantic and in Mucugê-BA evaluating cultivar Ágata. The experimental design used was randomized blocks. We studied the rates of 0; 70; 110; 220, and 450 kg ha-1 K2O. The increase in K rate reduced the levels of S, Ca, Mg and B in Atlantic-Unaí, Ca, Mg, Zn and B in Ágata-Unaí and S, Fe and B in Ágata-Mucugê. The cultivar Atlantic-Unaí...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Mineral fertilization; Plant nutrition.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400400

Photosynthetically active radiation in strawberry produced in stair-like containers
Provedor de dados: 75
Autores: Velasco-López,Federico; Martínez-Gutiérrez,Gabino A; Morales,Isidro; Vasquez-López,Alfonso; Escamirosa-Tinoco,Cirenio.
ABSTRACT In intensive hydroponic systems, such vertical and pyramidal systems, photosynthetically active radiation (PAR) and integrated (IPAR) may be intercepted by the containers and the leaf area of the plants grown in the upper strata, decreasing fruit yields and quality. The objective of this study was to evaluate the behavior of PAR and IPAR at different planting heights and the effect of geographic orientation and fruit yield and quality of strawberry produced in stair-like containers. The factors were four heights of the container (0.20, 0.50, 0.80 and 1.10 m) and two orientations (east and west). At each height and orientation of the container, PAR and IPAR, yield and fruit total soluble solids were measured. PAR and IPAR were statistically...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria ananassa; Fruit quality; Soilless culture; Intensive production.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100005

Cowpea and beet intercropping agro-economic dynamics under spatial arrangement and cowpea population density
Provedor de dados: 75
Autores: Chaves,Aridênia P; Bezerra Neto,Francisco; Lima,Jailma SS; Silva,Josimar N; Nunes,Renato LC; Barros Júnior,Aurélio P; Lima,Grace KL; Santos,Elizangela C.
ABSTRACT The objective of this work was to evaluate the effect of planting spatial arrangements between the cowpea and beet crops in intercropping and of cowpea population densities on the crop’s productivity and in the agro-economic efficiency of the association at two growing seasons. The experimental design was of randomised blocks with the treatments arranged in a 4 x 3 factorial scheme, in four replications. The first factor was constituted by three spatial arrangements between the component cultures (2:2, 3:3 and 4:4), formed by beet rows alternated with cowpea rows, while the second factor was constituted by the population densities of cowpea: 40, 60, 80 and 100% of the recommended population in single crop (RDSC). The production and its components...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata; Beta vulgaris; Complementarity; Mixed-cropping revenues.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200192

Evaluation of vegetation indices and plant growth regulator use on the rooting of azalea cuttings
Provedor de dados: 75
Autores: Hou,Ping-Cheng; Lin,Kuan-Hung; Huang,Yen-Jung; Wu,Chun-Wei; Chang,Yu-Sen.
ABSTRACT The objective of our study was to develop a protocol enabling the use of vegetation indices to evaluate the rooting of Azalea (Rhododendron pulchrum cv. Sweet) cuttings. Six root growth parameters were recorded after exposing those cuttings to rooting media for 47 days. Among plants with different soil-plant analysis development (SPAD) and normalized difference vegetation index (NDVI) values, those with higher values exhibited significantly higher number of roots, root length, and root dry weight, suggesting that reflectance indices were useful in measuring the root growth parameters of the cuttings. Another aim of this work was to study the effects of plant growth regulators (PGRs) on rooting for cutting propagation. Azalea cuttings were soaked...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhododendron pulchrum; Indole-3-butyric acid; Naphthaleneacetic acid; Plant growth regulator; Salicylic acid; Thiamine.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200153

Water and fertilizers use efficiency in two hydroponic systems for tomato production
Provedor de dados: 75
Autores: Rosa-Rodríguez,Rodolfo De la; Lara-Herrera,Alfredo; Trejo-Téllez,Libia Iris; Padilla-Bernal,Luz Evelia; Solis-Sánchez,Luis Octavio; Ortiz-Rodríguez,José Manuel.
ABSTRACT The amount of water and fertilizers used in the production of vegetables, specifically tomatoes, is high. This study was carried out to determine water and fertilizers use efficiency in closed and open hydroponic systems for tomato production under greenhouse conditions. Two treatments with eight replications were assessed; each replication consisted of 67 pots with two plants each. One treatment was a closed hydroponic system (with nutrient solution recirculation), and the other was an open hydroponic system (with non-recirculating nutrient solution). We quantified the amounts of water and fertilizers applied, as well as the losses (drained nutrient solution), in the two treatments during the entire cycle of tomato. In the nutrient solution (NS)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Efficient water and fertilizers use; Open and closed hydroponics systems; Recirculation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100047

Spear leaf in determining the harvest timing of peach palm heart
Provedor de dados: 75
Autores: Modolo,Valéria A; Ferreira,Larissa do N; Spiering,Sandra H; Erismann,Norma M.
ABSTRACT The harvest timing of peach palm stems for heart-of-palm production is mainly defined by the height and diameter of the stem. Spear leaf parameters could be used in the field to obtain a higher heart-of-palm yield. The aim of this study is to verify if the length and opening of the spear leaf are related to the peach palm heart production. Three harvests were carried out in Campinas (SP), over a period of one year. Before harvest the plants were measured: main stem circumference, height, number of tillers and leaves, length and degree of spear leaf opening. After stem harvest, heart-of-palm production was evaluated. Regardless of the harvest date, the length of the first-rate heart-of-palm was longer when the spear leaf was open. Total mass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bactris gasipaes; ‘guide leaf’; Correlation; Heart-of-palm production.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400356

Evaluation of onion genotypes to slippery skin caused by Burkholderia gladioli pv. Alliicola
Provedor de dados: 75
Autores: Velez,Leandro S; Silva,Adriano Márcio F; Santos,Carlos AF; Assunção,Emanuel F; Silva,Matheus S; Souza,Elineide B; Gama,Marco Aurélio S.
ABSTRACT Onion’s (Allium cepa) slippery skin caused by Burkholderia gladioli pv. alliicola is one of the bacterial diseases that stand out in producing regions of the Brazilian Northeast. Given the importance and potential threat of this disease, and the absence of resistant varieties, the aim of this study was to evaluate the reaction of onion genotypes to slippery skin and to analyze the tolerance stability of the most promising genotypes to different strains of the bacteria. Nine strains of B. gladioli pv. alliicola were artificially inoculated in onion bulbs cv. Baia Periforme and the three most aggressive strains (CCRMBG39, CCRMBG172 and CCRMBG212) were selected to evaluate the tolerance to the disease. Fifty-eight onion genotypes were challenged with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Genetic resistance; Onion bacterial rot.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400350

Head lettuce production and nutrition in relation to nutrient solution flow
Provedor de dados: 75
Autores: Dalastra,Cleiton; Teixeira Filho,Marcelo CM; Silva,Marcelo R da; Nogueira,Thiago AR; Fernandes,Guilherme Carlos.
ABSTRACT The optimum flow rate of nutrient solution in hydroponic system can better nourish the crops, allowing healthy and faster growth of lettuce. However, flow also interferes with electric power consumption, so further researches are necessary, mainly on the effect of flow rate, nutrient accumulation and lettuce production. In this context, the aim of this study was to evaluate nutrition and production of head lettuce in relation to the nutrient solution flow in NFT hydroponic system. The treatments consisted of nutrient solution application at the flow rates 0.5; 1; 2, and 4 liters per minute in each cultivation channel. Five replicates per treatment consisted of 15 plants each. The flow in hydroponic systems to produce head lettuce alters the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; Foliar nutrients contents; Foliar diagnosis; Nutrient accumulation; NFT hydroponic system.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100021

Efficiency of the gravity table in the processing of coriander seeds
Provedor de dados: 75
Autores: Gadotti,Gizele Ingrid; Hornke,Nander F; Cavalcante,Jerffeson A; Silva,Joseano G da; Gonçalves,Vanessa P; Capilheira,André F.
ABSTRACT This study aimed at assessing the quality of the physiology and health of the coriander seeds processed in a gravity table. This was investigated at two settings namely, I with angle X 3.5° and angle Y 3.1° and II with 3.9° and 2.7° angles, with five gravity table discharges (high, high intermediate, intermediate, low intermediate and low) besides feeding. The experiment adopted the 2x6 factorial scheme, in a completely randomized design, with four replications. Two coriander seed batches of cultivar Verdão were used. The gravity table was adjusted to have 2.9 m s-1 air speed on the platform. The seed fractions discharged in the lower portion of the gravity table revealed poorer physiological performance than that of the others. Regulation I...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coriandrum sativum; Separation; Specific mass; Physiological quality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200211

Mixtures between Beauveria bassiana and potassium silicate to manage thrips in tomato plants for industrial processing
Provedor de dados: 75
Autores: Pereira,Alexandre Igor A; Silva,Cide M da; Curvêlo,Carmen RS; Pontes,Nadson de C; Pereira,Jardel L; Tavares,Wagner de S; Zanuncio,José C; Luz,José Magno Q.
ABSTRACT Thysanoptera species can transmit virus to Solanaceae family vegetables, including tomato plants for industrial processing, causing the disease known as Tomato Spotted Wilt Virus (TSWV). Thrips resistance to insecticides indicate the urgent need of techniques adequate for Integrate Pest Management practices. The objective was to evaluate the control efficiency (CE%) against Frankliniella schultzei (Thysanoptera: Thripidae) of the fungus Beauveria bassiana (Bb), the resistance inducer potassium silicate (KSil) and the chemical insecticide profenophos + cypermethrin (PC) isolated, or in binary mixtures. The treatments were foliar spraying on tomato plants with Bb (T1), KSil (T2) and PC (T3) isolated or in mixtures of Bb+KSil (T4), PC+KSil (T5) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frankliniella schultzei; Solanum lycopersicum; Entomopathogenic fungi; Silicon; Synergism; Tank mixture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400415

Diallel analysis of “dedo-de-moça” pepper seeds in relation to physiological potential
Provedor de dados: 75
Autores: Gomes,Gisely Paula; Zeffa,Douglas; Freiria,Gustavo Henrique; Furlan,Felipe F; Queiroz,Robison Alesandro de; Takahashi,Lúcia SA; Gonçalves,Leandro SA.
ABSTRACT “Dedo-de-moça” (Capsicum baccatum var. pendulum) is one of the main chili peppers grown worldwide. However, studies on genetics and breeding of this species are rare, when compared to other Capsicum species, manly in relation to physiological seed quality traits. In this sense, this study aimed to evaluate the combining ability of “dedo-de-moça” chili pepper in relation to physiological seed quality traits, determine the gene effects involved in the expression of these traits, and identify promising hybrid combinations. Crosses among five parents (Hortivale, Horticeres, Brs Mari, UEL 110 and UEL 111) in a full diallel mating design, resulted in 20 F1 hybrids. Griffing’s diallel model was used to estimate general and specific combining ability (GCA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum baccatum; Complete diallel; General and specific combining ability; Reciprocal effect.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300301

Association between agronomic characters and hay quality of sweet potato branches
Provedor de dados: 75
Autores: Andrade Júnior,Valter C de; Donato,Luan Mateus S; Azevedo,Alcinei M; Guimarães,Amanda G; Brito,Orlando G; Oliveira,Davi M; Medina,Antônio Julio; Silva,Lidiane R.
ABSTRACT From the perspective of the use of sweet potato branches for animal feed, there is a lack of information on the influence of this action on hay quality. Therefore, the objective was to study the association of sweet potato yield attributes with chemical-bromatological characteristics of hay. Ten sweet potato clones were evaluated, conducted in randomized blocks with five replications. Green and dry mass yield, dry mass content, leaf and stem ratio, total and commercial root yield, and chemical and bromatological characteristics of hay from the branches were determined. Phenotypic correlation and trial analysis between characteristics were estimated. Selection for the highest yield of roots and commercial roots may provide increased hay of crude...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomoea batatas; Animal feed; Trial analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100027

Postharvest durability of tomatoes with PVA covering
Provedor de dados: 75
Autores: Candéo,Manuella; Canteri,Maria Helene G; Macedo,Dayana Carla de; Kubaski,Evaldo T; Tebcherani,Sergio M.
ABSTRACT Plastic packaging from petroleum derives used in the food industry represents serious environmental problems. Alternative solutions to these problems consist of the development of biodegradable packaging, such as films and edible coatings including the polyvinyl alcohol (PVA). In this research we evaluated the effect of the PVA application by two different techniques aiming to increase shelf life of ripe tomatoes, cultivar Carmen. The methodology of this study consisted in covering tomatoes with a PVA solution and also with PVA impregnated tracing paper. The different fruit lots were kept in polystyrene trays for 19 days on a laboratory bench at a controlled temperature of 25±3ºC. The fruit analyzes were compared to the control fruits without any...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Biodegradable packaging; Shelf life; Perishability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200160

Meiotic behavior and fertility of Capsicum interspecific hybrids
Provedor de dados: 75
Autores: Oliveira,Sara I de; Ribeiro,Elba H; Moreira,Nádia F; Vianna,Larissa S; Pereira,Telma NS.
ABSTRACT This study was performed to evaluate the meiotic behavior and fertility of four hybrids obtained from the crossing of Capsicum baccatum and its botanical forms with Capsicum chinense and Capsicum frutescens. We aimed to identify the causes of the low fertility in interspecific hybrids involving species from different gene pools of Capsicum. Hybrid flower buds were fixed in fixative solution and the slides were prepared using 1%-acetic carmine solution. Meiosis was observed in all phases and the main meiotic abnormality observed was the complete or partial lack of chromosome pairing, indicating that the species are either genetically distant or that some asynaptic gene was present in the hybrids. Meiotic index (MI), the frequency of unreduced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum baccatum; Capsicum chinense; Capsicum frutescens; Meiosis; Meiotic abnormality; Chromosome pairing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400382

Resistance sources to root-knot nematodes Meloidogyne javanica, M. incognita and M. enterolobii in sweet potato
Provedor de dados: 75
Autores: Carmona,Paula Andrea O; Pinheiro,Jadir B; Amaro,Geovani Bernardo; Silva,Giovani Olegario da; Peixoto,José Ricardo; Cares,Juvenil Enrique.
ABSTRACT One of the main obstacles for food production in many developing countries, as in Brazil, is the damage caused by root-knot nematodes, mainly those belonging to the genus Meloidogyne. This study aimed to assess the resistance levels of 44 sweet potato genotypes to M. javanica, M. incognita race 1 and M. enterolobii. These researches were carried out in 2014, under greenhouse conditions in Brasília-DF, Brazil. A completely randomized design with six replicates of one plant/plot/treatment was used. We determined the gall index (GI) and egg mass index (EMI) in the root system of each plant, the number of eggs and juveniles per gram of root with galls and the nematode reproduction factor. M. javanica was less aggressive and reproduced in only 9.09% of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomoea batatas; Plant breeding; Reproduction factor; Genetic resistance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200126

Repeatability and heritability of production characters in strawberry fruits
Provedor de dados: 75
Autores: Andrade Júnior,Valter C; Oliveira,Altino JM; Guimarães,Amanda G; Ferreira,Marcos Aurélio M; Cavalcanti,Vytória P; Fernandes,José Sebastião C.
ABSTRACT The estimation of repeatability coefficient provides support to define the number and the appropriate period of genotype evaluations, obtaining better success in breeding programs, in order to lower labor costs. Therefore, knowing repeatability and heritability parameters is relevant. Thus, the aim of this study was to estimate the repeatability and heritability coefficients and accurately determine the number of measurements. Eight strawberry cultivars were analyzed in a randomized block design with four replicates and eighteen plants per plot, being harvested twice a week over a period of six months (May to October, 2012), totalizing six evaluations. Among the evaluated traits, the estimated heritabilities ranged from 3.13% (number of fruits) to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria x ananassa; Genetic breeding; Number of measurements.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100089

Production and characterization of inter and intraspecific hybridization eggplant
Provedor de dados: 75
Autores: Ghani,Muhammad A; Abbas,Muhammad M; Ziaf,Khurram; Azam,Muhammad; Ali,Basharat; Amjad,Muhammad; Anjum,Romana; Noor,Anam; Zahid,Mubashir.
ABSTRACT The eggplant is a highly valuable horticultural crop grown all over the world and it is of substantial economic importance in Asia. However, its production is severely threatened by several soil-borne and foliar diseases, insect-pests, drought, heat, and frost damage. Therefore, efforts to transfer useful resistance genes into eggplant from their wild relatives is important. In the present study, interspecific and intraspecific hybridization was carried out, that included three cultivated genotypes of eggplant (Solanum melongena MEE, Solanum melongena MEP, Solanum melongena MEB) and one wild Solanum species (Solanum incanum INC). The F1 hybrids were made by inter and intraspecific hybridization. A total of 632 possible inter and intraspecific...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum melongena; Solanum incanum; Solanaceae; Hybrid; Heterosis; Yield; Wild species.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400407

Genetic parameters and simultaneous selection using traits of ornamental interest in pepper plants
Provedor de dados: 75
Autores: Acevedo,Ana Karolina de OS; Medeiros,Artur M; Barroso,Priscila A; Costa,Gérson do N; Lopes,Angela CA; Gomes,Regina Lucia F.
ABSTRACT Pepper plants of the genus Capsicum are widely grown worldwide. The Capsicum annuum species shows ornamental potential; nevertheless, in the state of Piauí, there has been a lack of studies on its performance, related to quality traits needed to meet market demand. The aim of this study was to estimate the genetic parameters and associations between traits of ornamental interest in C. annuum in order to indicate, by simultaneous selection of traits, accessions to start an ornamental pepper breeding program in Piauí. We evaluated 16 accessions of C. annuum under plastic house conditions at Universidade Federal do Piauí. Number of days to flowering, number of days to fruit maturation, plant height, number of fruits per plant, fruit persistence,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Ornamental ideotype; Genotypic determination coefficient.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400394

Experimental planning for conducting experiments with cucumber
Provedor de dados: 75
Autores: Lúcio,Alessandro Dal’Col; Lambrecht,Darlei M; Sari,Bruno G; Krysczun,Dionatan K; Ubessi,Cassiane.
ABSTRACT In order to be considered highly reliable (showing very accurate results), an experiment needs to be very well planned. Defining the experimental plot size and number of replicates is fundamental to control the experimental error at the beginning of the experiment. The aim of this study was to estimate the plot size and the number of replicates sufficient to perform experiments with Cucumis sativus. A uniformity trial was installed in the first week of January 2017. The spacing used was 0.3 m between plants and 1 m between rows, resulting in 12 plants in each of the 12 cultivation rows and each basic experimental unit was composed of one plant. The variables observed in 18 harvests were average fruit mass (MMF, in g), average fruit length (CMF, in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis sativus; Experimental accuracy; Number of replicates; Plot size; Experimental variability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200112

Bioactive compounds, processing quality and yield of colored flesh potato clones
Provedor de dados: 75
Autores: Cima,Francieli Fatima; Pereira,Elisa dos S; Schiavon,Marina V; Munhoz,Priscila C; Lenz,Emerson A; Wolter,Daiana D; Silva,Tuane A da; Azevedo,Fernanda Q; Vizzotto,Márcia; Pereira,Arione da S.
ABSTRACT Colored flesh potatoes contain high concentrations of phytochemicals, such as phenolic acids, anthocyanins and carotenoids, which have therapeutic effects and promoters of human health. The objective of the study was to evaluate the concentration of bioactive compounds and industrial quality and yield traits of potato tubers. Four experiments were carried out in Pelotas-RS. In 2012 and 2013, tuber yield traits were evaluated and in 2014 and 2015, the bioactive compounds (phenolic compounds, anthocyanins and carotenoids), antioxidant activity and industrial quality traits [glucose content, dry matter (%) and frying color] were assessed. Clones C2715-01-09, C2721-22-09 and C2743-01-09, having fully pigmented purple flesh presented high...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Antioxidant; Special potatoes.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200139

Insecticidal and inhibitory effects of Meliaceae and Asteraceae extracts to silverleaf whitefly
Provedor de dados: 75
Autores: Baldin,Edson Luiz Lopes; Schlick-Souza,Eunice Cláudia; Soares,Muriel Cicatti Emanoeli; Lopes,Norberto Peporine; Lopes,João Luis Callegari; Bogorni,Paulo César; Vendramim,José Djair.
ABSTRACT Bemisia tabaci (Hemiptera: Aleyrodidae) is a polyphagous insect that causes direct and indirect damage on tomato. Spraying with synthetic insecticides is one of the main control tools for the whitefly; however, the abusive use of this tool can impact the environment and human beings. In this study we evaluated the bioactivity of extracts from plant species from Asteraceae and Meliaceae families on B. tabaci biotype B in tomato. A preliminary bioassay evaluated the effects of the extracts at 2% (w/v) on infestation and oviposition of this whitefly. Then, the nymphicidal and ovicidal effects of the chloroformic extract of Trichilia pallida - TP-Cl at six concentrations were performed. Finally, the TP-Cl LC50 was estimated. All extracts were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bemisia tabaci; Botanical pesticide; Allelochemical; Alternative control.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300280

Agronomic performance of sweet cassava cultivars
Provedor de dados: 75
Autores: Mendonça,Ricardo M de; Vieira,Eduardo A; Fialho,Josefino de F; Ribeiro,Marcos R; Sene,José Carlos da S; Paiva,Weslley M de; Malaquias,Juaci Vitória.
ABSTRACT Brazilian sweet cassava consumers are becoming more and more demanding in relation to sanitary conditions, organoleptic and nutritional characteristics of this vegetable products and their derivatives. Thus, more nutritious, early, productive, adapted to mechanized planting and good culinary quality sweet cassava cultivars were developed. This study aimed, therefore, to evaluate the performance of four sweet cassava cultivars in Uberaba, in Triângulo Mineiro region. The experiments were carried out in the experimental field of Faculdades Associadas de Uberaba (FAZU) during two harvest seasons. We adopted a randomized block design with three replicates, each plot consisting of four lines with ten plants. Trait averages were grouped by the Scott...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manihot esculenta; Aipim; Macaxeira; Root yield; Culinary qualities.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400434

Production efficiency in cultivar combinations of beet and cowpea
Provedor de dados: 75
Autores: Ribeiro,Jeisy RS; Bezerra Neto,Francisco; Lima,Jailma SS; Chaves,Aridênia P; Silva,Josimar N; Santos,Elizangela C; Nunes,Renato LC.
ABSTRACT For the simultaneous achievement of productivity in beet and cowpea associations, it is necessary to take into consideration the choice of cultivar combinations that offer a response in terms of production, product quality and efficiency of the intercropping. Thus, the objective of this work was to evaluate the viability of production of beet cultivars combinations with cowpea cultivars in two cropping years (2016 and 2017) in a semi-arid environment. The treatments arranged in a 2 x 4 factorial scheme, with four replications, consisted of the combination of two beet cultivars (Early Wonder and Fortuna) with four cowpea cultivars (BRS Tumucumaque, BRS Cauamé, BRS Guariba and BRS Itaim), in addition to monocultures of these cultivars, as an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beta vulgaris; Vigna unguiculata; Calotropis procera; Crop association; Semi-arid environment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400445

Nitrogen sources on yield, mineral nutrition and bromatology of Cyclanthera pedate
Provedor de dados: 75
Autores: Valadares,Samuel V; Valadares,Rafael V; Costa,Candido A; Martins,Ernane R; Fernandes,Luiz A.
ABSTRACT Caygua fruits (Cyclanthera pedata) are used both in cooking and for medicinal purposes. However, few studies on this species, considered a non-conventional vegetable, can be found in literature. This study aimed to assess the responses of caygua crop to green manure and mineral nitrogen fertilization, in relation to marketable fruit productivity, nutrient content in leaves and fruits and bromatological composition. The study was carried out in a randomized block design with four treatments and five replicates: 1) control (without nitrogen); 2) 60 kg ha-1 nitrogen (urea form); 3) green manuring using Cajanus cajans and 4) green manuring using Crotalaria juncea. The plots consisted of three caygua lines with four plants per line (spacing 2x1 m). In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyclanthera pedata; Green manuring; Non-conventional vegetable; Medicinal plant.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100078

Potato production affected by fertilization methods, masses of seed tubers and water regimes
Provedor de dados: 75
Autores: Viana,Jonathan dos S; Palaretti,Luiz Fabiano; Faria,Rogério T de; Delgado,Yago V; Dalri,Alexandre B; Barbosa,José de A.
ABSTRACT Increasing potato yield while saving natural resources is a challenge for all those involved in the potato production chain. A field experiment was carried out in order to evaluate the effect of different levels of fertilization, mass of seed tubers and the water regime on the production of potato cv. Orchestra. We tested fertilization methods (F1= conventional fertilization; F2= fertigation according to the rate of absorption by the crop; F3= fertigation split into 3 applications), seed tuber mass (ST1= &lt;50 g; ST2= &gt;50 g), and water regimes [WR1= 50%; WR2= 100% replacement of crop evapotranspiration (ETc)]. The study was conducted using a split-plot randomized block design, with fertilizers in the plot and seed tuber mass in the subplot,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Drip irrigation; Nutrition; Propagation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200166

Nitrogen levels via fertigation and irrigation depths in the arugula culture
Provedor de dados: 75
Autores: Silva,Paulo Henrique Soares; Palaretti,Luiz Fabiano; Cecílio Filho,Arthur Bernardes; Silva,Yane Freitas da.
ABSTRACT In vegetables, especially the leafy ones, nitrogen (N) and water are essential in its growth, being N the second most absorbed and identified nutrient in the arugula leaf tissue. Water is essential for horticultural crops, so its use must be rational in order to achieve high yield. The objective of this study was to evaluate the effect of nitrogen levels and irrigation depths on the productive characteristics, the total leaf chlorophyll index (ICF) and nitrogen contents in the arugula culture. The experiment was arranged in a randomized block design subdivided in plots, with two factors: A) nitrogen levels applied in coverage (25, 50, 100, 125 and 150 mg dm-3) and B) irrigation depths [(50 and 100% of the available water capacity (AWC)]. At...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eruca sativa; Leaf chlorophyll index; Leafy vegetables; Water complementation; Plant growth.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400343

Effects of artificial light sources on growth and phytochemicals content in green oak lettuce
Provedor de dados: 75
Autores: Etae,Nursalmeeyah; Wamae,Yarodah; Khummueng,Weeraya; Utaipan,Tanyarath; Ruangrak,Eaknarin.
ABSTRACT The artificial light source is one of the most important factors in a controlled environment for vegetable production. It could provide new opportunities to improve growth and increase phytochemicals content in vegetables. Therefore, this study focused on the effects of artificial light sources on growth and phytochemicals in green oak lettuce (Lactuca sativa). The plants were grown under growth chamber with three artificial light sources, namely bar-LED (the 1:1:1 ratio of blue 460 nm : red 630 nm : red 660 nm), bulb-LED (the 2:1:1 ratio of blue 460 nm : red 630 nm : red 660 nm), and fluorescent lamp (FL) (the wavelength range 380-700 nm) for 4 weeks. The quality of bar-LED light was better than either bulb-LED or FL, when assessed by the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; Controlled environment; Light spectrum; Phytonutrients.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200204

Selection of tomato lines and populations for fruit shape and resistance to tomato leafminer
Provedor de dados: 75
Autores: Resende,Nathalia CV; Silva,Alex Antonio da; Maluf,Wilson Roberto; Resende,Juliano Tadeu V de; Zeist,Andre Ricardo; Gabriel,André.
ABSTRACT The market requirement regarding fruit type varies from region to region and it is necessary to produce cultivars with different patterns of fruit morphology. Therefore, the aim of this study was to select lines with resistance to tomato leafminer and different fruit shapes in order to meet the different market segments. Seventy-six lines and pre-selected populations were used for pest resistance together with four other susceptible controls (TOM-584, TOM-684, NC-123S, and Santa Clara) and two wild accessions (Solanum pennellii ‘LA 716’ and S. habrochaites var. glabratum ‘PI-127826’) considered resistant. The experiment consisted of tests of resistance to the tomato leafminer Tuta absoluta. The selection of lines was efficient, being obtained 33...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuta absoluta; Solanum pennellii; Solanum habrochaites; Acylsugar; Allelochemicals; Fruit shape.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200117

Development and production of sweet corn applied with biostimulant as seed treatment
Provedor de dados: 75
Autores: Lima,Sebastião F; Jesus,Anderson A; Vendruscolo,Eduardo P; Oliveira,Tabata Raissa; Andrade,Maria Gabriela O; Simon,Cátia Aparecida.
ABSTRACT Sweet corn has potential to increase farmer’s income. Thus, biostimulants may contribute to increase productivity of sweet corn, being indicated and used in various crops. The objective of this study was to evaluate the effects of applying biostimulant on sweet corn crops and to establish the ideal dose aiming to increase the crop’s agronomic characteristics. The experiment was installed in the municipality of Chapadão do Sul-MS and was conducted from November 15, 2012 to February 19, 2013. Treatments were composed of eight biostimulant doses (0.0, 4.0, 8.0, 12.0, 16.0, 20.0, 24.0 and 28.0 mL kg-1 of seeds), arranged in a randomized complete block design with four replicates. The responses of the variables to the best dose of biostimulant were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays convar. saccharata var. rugosa (sweet corn); Phytohormones; Growth regulators.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100094

Performance of maize seedlings for baby corn production
Provedor de dados: 75
Autores: Costa,Ariane C; Coelho,Fábio C; Garcia,Romário V; Lima,Wallace Luís de; Vivas,Marcelo; Prins,Cláudia L; Rocha,Jaídson G da.
ABSTRACT Using maize seedlings for baby corn production can benefit farmers who have small areas under cultivation. The objective of this study was to evaluate the possibility of using maize seedlings for the production of baby corn. The experiment was carried out in field with four treatments (direct sowing in field; transplanting seedlings 10 days after sowing (DAS); 20 DAS and 30 DAS) in randomized blocks with eight replications. Plants from seedlings 30 DAS were higher than sowing direct in field. Direct sowing in field and seedlings 30 DAS resulted in the largest stands. Sowing direct in field and transplanting seedlings at 20 and 10 DAS presented the highest number of total and commercial ears, while crops obtained from direct sowing in field yielded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Phenology; Seedling production.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400421

Evaluation of photosynthetic photon flux in lettuce cultivation at different shading levels
Provedor de dados: 75
Autores: Cometti,Nilton Nélio; Silva,Josimar V da; Zonta,Everaldo; Cessa,Raphael MA.
ABSTRACT Protected cultivation has grown in Brazil. Generally, greenhouses are covered with transparent plastic film and shading screen. The plastic, over time, loses its transparency due to pollution residues, dust and other debris. The loss of transparency reduces lightness, photosynthesis and leads to losses of productivity and product quality. The losses are not always detectable by the farmer. Additionally, internal shading screens are used to reduce heating transmission to the ground. The objective of this study was to evaluate the impact of shading on lettuce crop productivity and to determine the optimum shading to reach the highest productivity. Plots were set up inside and outside the greenhouse, with four shading levels with black screens (0,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; Plastic film; Crop protection; Light.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100065

Rapid NPK diagnosis in tomato using petiole sap analysis with the DRIS method
Provedor de dados: 75
Autores: Ávila-Juárez,Luciano; Rodríguez-Ruiz,Mario A.
ABSTRACT One of the factors determining success in tomato production is plant nutrition. The diagnosis and recommendation integrated system (DRIS) is a tool used to obtain fertilizer recommendations. The objective of this study was to determine DRIS indices using petiole sap analysis (PSA) and compare them with those obtained using leaf analysis in two tomato cultivars grown under greenhouse conditions. A complete randomized design with eight treatments and 60 plants per experimental unit was used. To determine whether employing PSA with the DRIS methodology can provide a reliable diagnosis of fertilization, doses of some elements, such as N, P, or K, were reduced by 30% and supplied to two tomato cultivars, namely, Cid and Moctezuma. The indices for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Petiole extract; Nutritional balance; Nutrients.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300306

New resistance sources to root-knot nematode in Capsicum pepper
Provedor de dados: 75
Autores: Pinheiro,Jadir B; Silva,Giovani Olegario da; Macêdo,Amanda G; Biscaia,Danielle; Ragassi,Carlos Francisco; Ribeiro,Cláudia SC; Carvalho,Sabrina Isabel C de; Reifschneider,Francisco José B.
ABSTRACT Thirty seven pepper genotypes, Capsicum chinense, C. annuum and C. frutescens, were characterized for resistance to three root-knot nematode species (Meloidogyne javanica, M. incognita race 1 and M. enterolobii) aiming to find potential resistance sources to be used in breeding programs. Three experiments were carried out, in 2013, 2014 and 2016, in a greenhouse, in randomized block design and six replicates, one plant/pot. Data were submitted to analysis of variance and average clustering. All evaluated pepper genotypes were resistant or immune to M. javanica. For M. incognita race 1, all accessions of C. frutescens, evaluated in the first experiment, were resistant, whereas the six accessions of C. chinense were susceptible. For M. incognita,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum spp.; Meloidogyne javanica; M. incognita race 1; M. enterolobii.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100033

Composition and diversity of benthic macroinvertebrates in a Brazilian Cerrado stream
Provedor de dados: 76
Autores: Pio,Jéssica F. G.; Santiago,Eunice de F. E.; Copatti,Carlos E.
ABSTRACT This study aimed to analyse the diversity and composition of benthic macroinvertebrate assemblages in the dry and rainy seasons in a Brazilian Cerrado stream, where it was hypothesized that the dry season has higher diversity and it differs in terms of organism composition in relation to the rainy season. Sampling was carried out in the dry (May and August/2016 and August/2017) and rainy seasons (November/2016 and February and November/2017). Individuals were identified at the family level and classified according to functional feeding group (FFG). There were 3,776 individuals, in which Chironomidae was the most abundant taxon with 2,226 organisms. The FFG with the highest number of individuals and species richness were collector-gatherer and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance; Chironomidae; Functional feeding group; Seasonal variations; Richness.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100216

Baixa riqueza zooplanctônica indicando condições adversas de seca e eutrofização em um reservatório no Nordeste do Brasil
Provedor de dados: 76
Autores: Silva,Caio O.; R. Junior,Adjuto; Perbiche-Neves,Gilmar; Pinheiro,Allysson P.; Lacerda,Sírleis R.
RESUMO Esse trabalho caracterizou o zooplâncton e as variáveis ambientais do reservatório Canoas (Assaré, Ceará, Brasil) através de oito coletas consecutivas mensais, durante um período de estiagem intensa. Amostras de zooplâncton foram coletadas com arrastos verticais de rede de plâncton de 50 µm em três pontos distribuídos longitudinalmente. Foram encontradas cinco espécies: Brachionus calicyflorus Pallas, 1938 (Brachionidae: Rotifera), Diaphanosoma spinulosum Herbst, 1967 (Sididae: Cladocera), Thermocyclops decipiens Kiefer, 1929 e T. inversus Kiefer, 1936 (Cyclopoida: Copepoda), e Notodiaptomus cearensis Wright, 1936 (Calanoida: Copepoda). Thermocyclops decipiens apresentou a maior abundância relativa, seguido de N. cearensis e B. calicyflorus. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioindicador; Distribuição; Estrutura da comunidade; Zooplâncton; Semiárido.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100209

Ontogeny of the skull of Sotalia guianensis (Cetartiodactyla: Delphinidae) on the Northern coast of Brazil
Provedor de dados: 76
Autores: Novais,Renata F.; Siciliano,Salvatore; Emin-Lima,Renata; Silva Júnior,José S.
ABSTRACT This study aimed to investigate the ontogenetic development of the skull in the Guiana dolphin (Sotalia guianensis Van Bénéden, 1864 ) through the comparison of 29 morphological non-metrical characters together with the estimated age of 54 specimens derived from four areas on the northern coast of Brazil. The state of each character was associated with the age of each specimen to assess the formation of bone structures, and the degree of fusion of the sutures in each state of the character studied. Nineteen qualitative morphological characters presenting state ontogenetic variations have been analyzed statistically. The analysis depicted that the characters associated with the parietal-frontal suture, parietosupraoccipital, parietoexoccipital,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic mammals; Small cetaceans; Development; Morphology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100224

Redescription and new records of Synopia ultramarina Dana (Amphipoda: Synopiidae) from off the northeastern Brazil, with comments on its morphological variations
Provedor de dados: 76
Autores: Senna,André R.; Andrade,Luiz F.; Guedes,Urssula N.; Pereira-Filho,Guilherme H.
ABSTRACT Synopia ultramarina Dana, 1853 is considered a circumtropical species and was originally described based on material collected from two localities near halfway between the southwestern Africa and northeastern Brazil. The species is redescribed here with samples from Fernando de Noronha Archipelago, Pernambuco state, northeastern Brazil. The material examined was collected by SCUBA diving, from rhodolith beds, in Ressureta Channel, between Meio and Rata Islands. Additional material was collected from off Ceará state coast, during environmental consultancies, by Petrobras S. A., and off Pernambuco state coast, during the Project REVIZEE NE IV. Discussion on morphological variations of the species is presented, based on the studied material and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Oceanic island; New record; Taxonomy; Southwestern Atlantic.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100217

Bat assemblages of protected areas in the state of Rio de Janeiro, Brazil
Provedor de dados: 76
Autores: Costa,Luciana M.; Bergallo,Helena G.; Luz,Júlia L.; Esbérard,Carlos E. L.
ABSTRACT We analyzed the bat assemblages found in protected areas in the state of Rio de Janeiro, Brazil, which is the best-sampled region of the Atlantic Forest. We selected 24 strict nature reserves and nine sustainable-use protected areas. We used data from inventories and complemented with data from the literature. We compared strict and sustainable-use protected areas, and tested whether the bat assemblages varied between habitat types. We tested the effect of geographic distance on the dissimilarity between bat assemblages, as well as the relationship between species composition and the size, mean altitude of the protected area, and capture effort. We compiled a total of 34,443 capture records, involving 67 species. Three species were captured only...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Altitude; Atlantic Forest; Chiroptera; Geographic distance; Types of habitat.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100228

Phenotypic matching in ovipositor size in the parasitoid Galeopsomyia sp. (Hymenoptera, Eulophidae) attacking different gall inducers
Provedor de dados: 76
Autores: Luz,Fernando Albuquerque; Goetz,Ana Paula Moraes; Mendonça Jr.,Milton de Souza.
ABSTRACT Parasitoid ovipositor size importantly affects host choice; those attacking exposed hosts usually have shorter ovipositors compared to those needing drilling deeper through substrates such as plant tissue and gall tissue. Most studies treat this theme at the interspecific level, and the aim of this work was to test for intraspecific variation and phenotypic matching in ovipositor size for Galeopsomyia sp. attacking galls. Galls were sampled from Guapira opposita(Nyctaginaceae), a host plant to five species of Bruggmannia gallers (Diptera, Cecidomyiidae) in southern Brazil: Bruggmannia elongata, B. robusta, B. acaudata, and two undescribed species of Bruggmannia (sp. 1 and sp. 2). On forest transects, all galls from the 30 first galled plants found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bruggmannia; Oviposition; Host selection.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100208

Evaluation of the stomach contents of Eriphia gonagra from a rocky shore in the southeastern Brazilian coast
Provedor de dados: 76
Autores: Rodrigues,Larissa R.; Góes,João M. de; Silva,Thiago E. da; Teixeira,Gustavo M.; Andrade,Luciana S. de; Fransozo,Adilson.
ABSTRACT The rocky shores of Praia Grande, in Ubatuba (São Paulo, Brazil), are formed by rock and Sabellaridae polychaete sandy reefs. These microenvironments offer shelters and foraging areas for several marine organisms and attracts many tourists. The crab Eriphia gonagra (Fabricius, 1781) inhabits these structures and can be used as a bioindicator, since they may be affected by anthropogenic actions. This study evaluated the stomach contents and characterized the feeding habits of an E. gonagra population, inhabiting the rocky shores from Praia Grande, taking into account the sex, size, and microhabitat. Monthly samplings were performed in 1996 and 1997 and the crabs were manually captured on the rocky surface or into of the sand reefs. So, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phragmatopoma sp.; Foraging; Crustacea; Brachyura; Food selection.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100213

Cinco especies nuevas de Drosophila (Diptera, Drosophilidae) relacionadas con Araceae
Provedor de dados: 76
Autores: Llangarí-Arizo,Luz Marina; Rafael,Violeta.
RESUMEN Drosophila anthurium sp. nov., Drosophila tsachila sp. nov., Drosophila guajalito sp. nov., Drosophila deloscolorados sp. nov. y Drosophila cartucho sp. nov. fueron capturadas en inflorescencias de la familia Araceae entre los 1800 y 2200 m de altitud en la Estación Científica Río Guajalito, provincia de Santo Domingo de los Tsáchilas, Ecuador. Las especies nuevas presentan surestilo y edeago largo, y apodema del edeago muy corto. Los análisis de la morfología externa y de la terminalia masculina indican que las cinco especies nuevas no pertenecen a ninguno de los grupos de Drosophila asociados a flores.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthurium; Cartucho; Colorados; Guajalito; Tsáchila.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100212

Influence of the microhabitat on the trap construction of Myrmeleon brasiliensis (Neuroptera: Myrmeleontidae) larvae
Provedor de dados: 76
Autores: Lima,Tatiane N.
ABSTRACT Antlion larvae of Myrmeleon brasiliensis (Návas, 1914) build their traps in a microenvironment with protection from the direct action of rain and other perturbations as well as microhabitats that are less protected from disturbances that can destroy the traps. Differences in microhabitats may affect the characteristics of the trap-building process due the high energy expenditure exerted in building and maintaining these traps, which led to the following question: Do antlion larvae of M. brasiliensis build larger traps in protected microhabitats? Considering the occurrence of M. brasiliensis larvae in two microhabitats and the measurements of the size of the larvae and their traps, the hypothesis was that larvae would occur in greater abundance and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antlion; Disturbance; Foraging; Traps.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100215

Benthic macroinvertebrate communities in sites with native forest presence and absence in north Patagonia
Provedor de dados: 76
Autores: Ríos-Escalante,Patricio De los; Esse,Carlos; Santander-Massa,Rodrigo; Saavedra,Pablo; Encina-Montoya,Francisco.
ABSTRACT The benthic fauna in northern Patagonian streams is characterized by presence of water quality indicator species. The aim of the present study was characterized the benthic communities in streams associated to sites with presence of Nothofagus forests and with human intervention without Nothofagus forests using null models in ecology, unified neutral theory of biodiversity (UNTB) and unweighted pair group method with arithmetic mean (UPGMA). The results of species co-occurrence null model revealed that species associations are random, whereas the results of niche overlap null models revealed the presence of niche overlap. The UNTB results revealed low species number. The results of UPGMA revealed that species composition is specific for each site...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthic macroinvertebrates; Nothofagus; Communities; Null models; Aquatic insects.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100214

Reproductive biology of the swimming crab Achelous spinimanus (Decapoda, Portunoidea): a potential fishing resource
Provedor de dados: 76
Autores: Sousa,Aline N.; Bernardes,Veronica P.; Bernardo,Camila H.; Taddei,Fabiano G.; Teixeira,Gustavo M.; Costa,Rogério C.; Fransozo,Adilson.
ABSTRACT This study describes the reproductive and recruitment patterns of the swimming crab Achelous spinimanus (Latreille, 1819) in the Ubatuba region of the northern coast of São Paulo, Brazil. Crabs were captured monthly from January 1998 to December 1999 in 18 sites located in three bays (Ubatumirim, Ubatuba, and Mar Virado), using a commercial fishing boat. In each sampling area, bottom temperature, salinity, and organic matter content were recorded. A total of 1,911 individuals were captured: 350 adult males, 475 non-ovigerous adult females, 584 adult ovigerous females, and 502 immature individuals. Reproductive females were more abundant in deeper areas; this migration might be a strategy to improve larval dispersion and survival. Ovigerous females...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fishing; Organic matter; Recruitment; Temperature; Ubatuba.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100210

Areas of endemism in the Brazilian Atlantic Forest based on the distribution of dung beetles (Coleoptera, Scarabaeidae, Scarabaeinae)
Provedor de dados: 76
Autores: Silva,Jorge L. da; Vaz-de-Mello,Fernando Z.
ABSTRACT Our goals were to determine whether the pattern of geographical distribution of dung beetles in the Brazilian Atlantic Forest (BAF), Southeast Brazil, supports the identification of the areas of endemism in this biome, how the number and boundaries of the areas of endemism vary with the spatial scale used in the analysis, if the areas of endemism identified here are consistent with previous proposals described in the literature. We used the analysis of endemicity (NDM) on the distributional patterns of 198 species and subspecies of dung beetles in order to identify areas of endemism into grids of 0.25°x0.25°, 0.5°x0.5° and 1°x1°. A total of 15 consensus areas (CA) were identified with the different grid sizes employed (two of 0.25°, three of 0.5°...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeography; Analysis of endemicity; NDM/VNDM; Consensus areas.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100203

Occurrence and infestation rates of Streblidae (Diptera, Hippoboscoidea) on bats (Mammalia, Chiroptera) in a semideciduous seasonal forest fragment in western Paraná, Brazil
Provedor de dados: 76
Autores: Ribas,Mateus R.; Batista,Sara C.; Aranha,José M. R.
ABSTRACT The objective of this work was to evaluate the occurrence and infestation rates of Streblidae species on bats in a semideciduous seasonal forest fragment in western Paraná, South of Brazil. A total of 289 specimens of eight Streblidae species were collected from six species of bats belonging to the family Phyllostomidae. The most frequent Streblidae species were Megistopoda proxima (Séguy, 1926), Aspidoptera falcata Wenzel, 1976 and Paratrichobius longicrus (Miranda Ribeiro, 1907). The highest prevalence found was Megistopoda aranea (Coquillet, 1899) on Artibeus planirostris (Spinx, 1823). The highest intensity found was M. aranea on Artibeus lituratus (Olfers, 1818). The highest abundance found was M. proxima on Sturnira lilium (E. Geoffroy,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectoparasites’ ecology; Ectoparasitic flies; Infracommunities; Parasitological indexes; Phyllostomidae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100226

Hatchability of gemmules of two Neotropical freshwater sponges (Porifera: Spongillida)
Provedor de dados: 76
Autores: Calheira,Ludimila; Santos,Paulo J. P.; Pinheiro,Ulisses.
ABSTRACT Inland waters experience extreme environmental conditions determining the evolution of several adaptive strategies of the fauna to these variable conditions. Freshwater sponges produce resisting bodies called gemmules that contain totipotent cells and specialized spicules (gemmuloscleres). Completely formed gemmules exhibit low metabolic rates and may become dormant during periods of environmental stress. Until now, few species had their hatchability tested against different environmental conditions. The purpose of the present study was to test the capacity of hatching gemmules of two freshwater sponge species (Heteromeyenia cristalina Batista, Volkmer-Ribeiro &amp; Melão, 2007 and Radiospongilla inesi Nicacio &amp; Pinheiro, 2011) from inland...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dormancy; Freshwater sponges; Hatching; Spongillidae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100201

Taxonomic and functional diversity of mollusk assemblages in a tropical rocky intertidal zone
Provedor de dados: 76
Autores: Souza,Shayanna M. A. da R.; Matthews-Cascon,Helena; Couto,Erminda da C. G.
ABSTRACT We investigated the spatial variation of molluscan assemblages with different habitat-forming species and bare rock habitat in a rocky intertidal zone in northeastern Brazil. The high intertidal zone substrate was covered predominantly of barnacles [Chthamalus bisinuatus (Pilsbry, 1916)], the mid-intertidal of mussels [Brachidontes exustus (Linnaeus, 1758)] and the low intertidal of macroalgae chlorophytes [Gayralia oxysperma (Kützing) K. L. Vinogradova ex Scagel et al., 1989 and Ulva lactuca Linnaeus, 1753], phaeophytes [Sargassum vulgare C. Agardh] and rhodophytes [Palisada flagellifera (J.Agardh) K. W. Nam, 2007]. A total of 3,861 mollusks were recorded, belonging to the classes Gastropoda (9 species; 3,800 individuals), Bivalvia (3 spp.; 54...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trophic groups; Benthic ecology; Ecosystem engineers; Biological substrate; Southwestern Atlantic.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100227

The Centris bees described by Ezra Townsend Cresson (Hymenoptera: Apidae)
Provedor de dados: 76
Autores: Vivallo,Felipe.
ABSTRACT In this paper the primary types of bees of the genus Centris Fabricius, 1804 described by the American hymenopterologist Ezra Townsend Cresson were studied. The type specimens of C. aethiops, C. fulviventris, C. lanosa, C. montezuma, C. otomita, and C. totonaca were examined, providing notes on their current status and depository. Photographs of selected types are also provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthophila; Centridini; Neotropical Region; Solitary Bees; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100220

Distribution of planktonic microcrustaceans (Cladocera and Copepoda) in lentic and lotic environments from the semiarid region in northeastern Brazil
Provedor de dados: 76
Autores: Diniz,Leidiane P.; Morais Júnior,Cláudio S. de; Medeiros,Ittalo L.S.; Silva,Alef J. da; Araújo,Alan P.; Silva,Tâmara A.; Melo Júnior,Mauro de.
Abstract The present study aimed to inventory the biodiversity of planktonic microcrustaceans (Cladocera and Copepoda) in 44 environments from the semiarid region of Brazil, increasing the knowledge about zooplankton community, including phytophilous species. Between 2011 and 2017, organisms were collected in a non - systematic way in the states of Rio Grande do Norte, Pernambuco, Ceará and Paraíba. A total of 60 species of planktonic microcrustaceans were identified, of which 52 were cladocerans and eight were copepods. The basin that presented the highest richness was Pajeú River with 41 species. Nevertheless, the extrapolated number of species shows an increasing tendency for this basin. The genus composition was different between the basins, with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zooplankton; Neotropical; Shallow lakes; Caatinga.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100202

Área de vida de Cistothorus platensis (Aves: Troglodytidae) no Cerrado brasileiro
Provedor de dados: 76
Autores: Fujikawa,Aline; Tubelis,Dárius P.
RESUMO A corruíra-do-campo Cistothorus platensis (Latham, 1790) apresenta ampla distribuição geográfica, ocorrendo ao longo de todo o continente americano. Informações sobre sua biologia têm sido obtidas principalmente em regiões temperadas, e o conhecimento sobre suas áreas de vida em campos tropicais é inexistente. O objetivo deste trabalho foi estudar as áreas de vida de C. platensis no Parque Nacional da Chapada dos Veadeiros, Cerrado do Brasil central. Quatorze machos foram anilhados em um campo sujo e cinco deles puderam ser acompanhados continuamente entre fevereiro e dezembro de 2008. O tamanho médio das áreas de vida (n = 5) foi de 6,10 ± 2,09 ha (Mínimo Polígono Convexo) e 4,57 ± 1,92 ha (Kernel 95%) e variaram significativamente entre as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campos; Corruíra; Região Neotropical; Savana.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100206

Revision of Coptochilus (Heteroptera, Scutelleridae, Pachycorinae)
Provedor de dados: 76
Autores: Schmitz,Luís Ricardo; Barcellos,Aline; Eger,Joseph.
ABSTRACT. Coptochilus Amyot &amp; Serville, 1843 is distinguishable from the other Neotropical Scutelleridae by the dorsally concave head, with lateral margins of mandibular plates elevated. Here we describe and revise the species of Coptochilus based on general and genital morphological traits. Coptochilus castaneus (Dallas, 1851), once synonymous with C. ferrugineus Amyot &amp; Serville, 1843, is revalidated, and a new species, C. morrisi, is described from French Guiana. A key to the five species in the genus is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropics; New species; Shield bug; Revalidation; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100223

Can nesting waterbirds influence the community structure of macroinvertebrates in southern Brazilian intermittent wetlands?
Provedor de dados: 76
Autores: Zardo,Daniela C.; Souza,Marcela M.; Pires,Mateus M.; Stenert,Cristina; Maltchik,Leonardo.
ABSTRACT The main goal of this study was to test the effect of the presence of nesting waterbirds on the taxonomic structure (richness, abundance and composition) of macroinvertebrate communities in southern Brazilian wetlands. Macroinvertebrate communities were seasonally sampled in eight intermittent wetlands differing according to the occurrence of nesting colonies of waterbirds (four with the presence of rookeries; four without). The influence of nutrients and water and sediment physicochemical variables on macroinvertebrate communities was also assessed. The community structure of aquatic macroinvertebrates was not affected by the presence of colonies of nesting waterbirds. Rather, macroinvertebrate communities varied seasonally and they were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic invertebrates; Ponds; Waterfowl; Water chemistry.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100219

Distribution of Siluriformes in a river under the influence of a small hydroelectric power plant of the Paraná River Basin, Brazil
Provedor de dados: 76
Autores: Garcia,Thiago D.; Ota,Renata R.; Ferreira,Dhiego G.; Nascimento,Raul H. C.; Galindo,Bruno A.; Pereira,Larissa S.; Zanatta,Augusto S.
ABSTRACT When a river is dammed, impacts differ according to distance from the dam under consideration, and sites closer to the dam are more affected than distant ones. Damming a river changes the flow and landscape characteristics, which, in turn, change the hydrological, limnological and ecological dynamics, such as biological production, species distribution, and ecosystem structuring, functioning and services. This study evaluates the distribution pattern of the Siluriformes (catfish) fish species near a small hydroelectric power plant in the Jaguariaíva River, considering three distinct distances from the dam: upstream region, reservoir and downstream region. Samples were taken with gillnets between March 2013 and December 2014. The abundance and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish assemblage; Ichthyofauna; Catfish; Paraná basin; Reservoir.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100205

Reproductive success of Trypoxylon (Trypargilum) lactitarse (Hymenoptera: Crabronidae) in a fragmented landscape
Provedor de dados: 76
Autores: Oliveira,Grayce Kelly Costa; Elias,Marcos Antonio da Silva; Bergamini,Leonardo Lima; Franceschinelli,Edivani Villaron.
ABSTRACT Fragmentation of natural vegetation often implies a reduction in local species richness and abundance. The resources used by bees and wasps for feeding and nesting are distributed quite irregularly in fragmented environments, which influences their foraging behavior, occurrence patterns and reproductive success. The objective of the present work was to determine if the size of native vegetation remnants influences the reproductive success of the solitary wasp species Trypoxylon (Trypargilum) lactitarse Saussure, 1867. Trap-nests were established along the edges of forest fragments of different sizes located in municipalities in the central region of the state of Goiás, Brazil. The nests were used to quantify nesting rate, number of cells with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragmentation; Reproductive success; Trap-nests.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100204

Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay
Provedor de dados: 76
Autores: Laino,Rafaela; Musalem,Karim; Caballero-Gini,Andrea; Bueno-Villafañe,Diego; González-Maya,José F.; Chaparro,Silvina.
ABSTRACT Species tend to be less abundant at the limits of their geographic distribution. Giant and lesser anteaters have their southernmost limits in Argentina and Paraguay, where scarce information exists regarding their ecology and conservation. We present a study carried out in the Paraguay River floodplain, in an area dedicated to cattle rearing using native grasses in a subtropical flooded savanna associated with naturally occurring forest islets, wetlands and palm groves. Using camera-traps within three different forest types, we estimated parameters related to habitat preference, social behavior and activity patterns of both species. Results show that capture success was greater in the Floodable sub-humid forest islets (FSF), compared to other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Camera-traps; Humid Chaco; Floodable forest.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100207

Nesting biology of the oil-collecting bee Epicharis (Hoplepicharis) fasciata (Hymenoptera: Apidae) in an urban area of Rio de Janeiro, RJ, Brazil
Provedor de dados: 76
Autores: Vivallo,Felipe.
ABSTRACT Nests of the oil-collecting bee Epicharis (Hoplepicharis) fasciata Lepeletier &amp; Serville, 1828 were studied at the Jardim Botânico of Rio de Janeiro, Brazil. The females constructed their nests in an area of 609 m2 of mostly sandy flat soil. The nest architecture was relatively simple, with a main tunnel of approximately 30 cm in depth with one or two lateral tunnels ending in a single brood cell. Adult activity lasted approximately 45 days. The females dug the tunnels, constructed the brood cells, collected provisions and laid the eggs in approximately two days. Diapause occurred in the post defecating larval stage, and there was no cocoon. Nest architecture and the morphology of the brood cells are described and illustrated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthophila; Bionomy; Neotropical Region; Nesting architecture; Solitary bee.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100225

Variações na forma do otólito sagitta de Coryphaena hippurus (Actinopterygii: Coryphaenidae) em uma área de ressurgência na costa sudoeste do Oceano Atlântico
Provedor de dados: 76
Autores: Almeida,Paulo R. C.; Monteiro-Neto,Cassiano; Tubino,Rafael A.; Costa,Marcus R.
RESUMO Os otólitos são estruturas espécie-específicas de peixes cuja análise morfológica é uma ferramenta eficiente para identificação e discriminação de estoques e/ou populações sujeitas a variações clinais. O presente trabalho buscou elucidar o grau de variação morfológica dos otólitos sagitta do dourado, Coryphaena hippurus Linnaeus, 1758 capturado ao largo da costa sudeste do Brasil pela frota pesqueira sediada no Rio de Janeiro. Os 164 pares de otólitos analisados foram obtidos a partir de amostras coletadas entre fevereiro de 2014 e outubro de 2016. A forma e o contorno dos otólitos sagitta foram caracterizados através de seis descritores (área, perímetro, circularidade, retangularidade, excentricidade e dimensão fractal) e análises de Fourier...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morfometria geométrica; Forma do otólito; Análise de Fourier elíptica; Análise multivariada.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100218

O guardião dos campos: um estudo sobre o comportamento do quero-quero Vanellus chilensis (Aves: Charadriiformes) no sul do Brasil
Provedor de dados: 76
Autores: Delfino,Henrique C.; Carlos,Caio J.
RESUMO O quero-quero Vanellus chilensis (Molina, 1782) é uma ave típica do Estado do Rio Grande do Sul, mas possui ampla distribuição geográfica nos campos da América do Sul, sendo conhecido pelo canto imponente e pelos comportamentos relacionados com a agressividade e a territorialidade. Apesar de ser reconhecido como animal símbolo do estado, nenhum trabalho acerca dos comportamentos dessa ave foi desenvolvido no estado. Este trabalho teve como objetivo qualificar e quantificar o repertório comportamental de V. chilensis. Observações dos comportamentos dessa ave foram feitas em uma área de campo com oito hectares, no município de Torres, RS, entre dezembro de 2017 e novembro de 2018, totalizando 143 horas de observação. Utilizou-se a metodologia de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Etologia; Interações; Reprodução; Vocalização; Comportamento agonístico.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100221

The lizard that never sleeps: activity of the pampa marked gecko Homonota uruguayensis
Provedor de dados: 76
Autores: Vieira,Renata C.; Verrastro,Laura; Borges-Martins,Márcio; Felappi,Jéssica F.
ABSTRACT It is generally assumed that lizards are active whenever climatic conditions are favorable. Homonota uruguayensis (Vaz-Ferreira &amp; Sierra de Soriano, 1961) is the only native gecko - and nocturnal lizard - living in the northern Pampa biome, and its ecology is poorly known. This study aimed at describing this species’ pattern of daily and annual activity and its relation with environmental temperatures. The study was conducted in the extreme south of Brazil (Rosário do Sul, State of Rio Grande do Sul), between May 2010 and January 2011 at a rocky outcrop located in the Pampa biome. The study was carried out in a total of four seasonal field trips, totalizing 1185 hours of field work. The data were collected, both during the day and the night in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nocturnal activity; Uruguayan savanna; Seasonality; Thermal ecology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100211

Assessing the morphological identification of guard hairs from Brazilian deer
Provedor de dados: 76
Autores: Silva,Beatriz F. S. da; Oliveira,Márcio L. de; Duarte,José M. B.
ABSTRACT Given the difficulty of collecting biological samples from rare and elusive species, the collection and analysis of hair is a good alternative for the identification and differentiation of mammal species. Our study aimed to test the reliability of the morphological identification of guard hairs from cervids that inhabit Brazil. We collected guard hairs from five body regions (head, neck, side of the thorax, back, and buttocks) of one male and one female of eight Brazilian cervid species, and we analyzed hair cuticular and medullar patterns. We carried out qualitative and quantitative analyses on the morphology of the medullar (total thickness and thickness of the medulla) and cuticular patterns (area and perimeter of the scales) of the guard...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blastocerus; Mazama; Non-invasive sampling; Odocoileus; Ozotoceros.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100229

New records and a new species of Scaphopoda (Mollusca) from the southwestern Atlantic Ocean
Provedor de dados: 76
Autores: Souza,Leonardo S.; Caetano,Carlos Henrique S.; Scarabino,Fabrizio; Costa,Paulo Márcio S.
ABSTRACT. The geographical distribution of Bathoxiphus ensiculus (Jeffreys, 1877) and Cadulus platensis Henderson, 1920 is greatly extended based on new records, the former being registered for the first time in the southwestern Atlantic. The type materials of both species are figured and an updated diagnosis of Bathoxiphus Pilsbry &amp; Sharp, 1897 is presented. A new deep-sea species of Cadulus is described, Cadulus victori sp. nov., known from only empty shells collected in the Northeast Brazil (off Alagoas and Bahia states) and distinguished from his congeners mainly by the strongly inflated shell, general outline and dimensions. The present study reinforces that although recent taxonomic revisions have been performed on the Scaphopoda from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gadilidae; Entalinidae; Bathoxiphinae; Bathoxiphus; Cadulus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100222

Feromônios como alternativa sustentável para o manejo do cascudinho-dos-aviários Alphitobius diaperinus.
Provedor de dados: 14
Autores: HASSEMER, M. J.; BLASSIOLI-MORAES, M. C.; BORGES, M.; LAUMANN, R. A.
O cascudinho-dos-aviários Alphitobius diaperinus (Coleoptera:Tenebrionidae) é uma das principais pragas da avicultura industrial a nível mundial. Atualmente, o controle desse inseto dentro dos aviários é realizado através da aplicação de inseticidas químicos, durante o vazio sanitário, isto é, sem a presença das aves. Neste momento, a oferta de alimento é menor e, devido ao hábito críptico do inseto, estes migram para esconderijos, como frestas no piso, para próximo dos pilares estruturais dos galpões e até mesmo para o solo, de forma que os inseticidas não atingem de maneira efetiva toda a população. Sendo assim, estudos de métodos de controle mais eficientes e mais sustentáveis para o manejo de A. diaperinus vêm sendo conduzidos. Um destes estudos é a...
Tipo: Folhetos
Palavras-chave: Avicultura industrial; Controle de praga; Semioquímicos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123738

Antioxidant potential and quality characteristics of grape peel-enriched rice-based extruded flour as potential novel food.
Provedor de dados: 14
Autores: REIS, I. P.; ASCHERI, J. L. R.
Recurso Eletrônico.
Tipo: Parte de livro
Palavras-chave: Casca de uva; Farinha de arroz; Expansão; Subprodutos; Extrusão; Solubilidade; Absorção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125201

Açaizeiro.
Provedor de dados: 14
Autores: VIÉGAS, I. de J. M.; CRAVO, M. da S.; ARAUJO, S. M. B.
Tipo: Parte de livro
Palavras-chave: Açaí; Euterpe Oleracea.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127313

Na agricultura, sempre é o primeiro ano.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000998777/na-agricultura-sempre-e-o-primeiro-ano.html.
Tipo: Artigo na mídia
Palavras-chave: Fruticultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126414

Hortaliça não é só salada. Hortaliça certificada.
Provedor de dados: 14
Autores: LANA, M. M.; OLIVEIRA, A. L. B.
O que é uma hortaliça certificada. Quem é responsável pela certificação. O que esperar de uma hortaliça certificada. Como identificar uma hortaliça certificada. Qual a diferença de selo de certificação para rotulo. Onde obter informações sobre hortaliças certificadas.
Tipo: Folders
Palavras-chave: Hortaliça; Certificação de Produto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126534

Aclimatação e enriquecimento de biomassa nitrificante usando águas residuárias da suinocultura para partida de reator em grande escala.
Provedor de dados: 14
Autores: ANTES, F. G.; HOLLAS, C. E.; VENTURIN, B.; BOLSAN, A. C.; CHINI, A.; BONASSA, G.; MUTCHAMUA, H. H. G.; KUNZ, A.
Tipo: Folhetos
Palavras-chave: Reator; Suinocultura; Águas Residuais; Nitrificação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126585

Tolerância de variedades de mandioca a herbicidas aplicados em pré-emergência.
Provedor de dados: 14
Autores: SANTIAGO, A. D.; PROCOPIO, S. de O.; BRAZ, G. B. P.
O alto custo da mão-de-obra de campo vem levando agricultores a utilizarem cada vez mais o uso do controle químico em lavouras de mandioca. Diante disso, o objetivo do trabalho foi avaliar a tolerância de variedades de mandioca cultivadas na Região Agreste de Alagoas aos herbicidas clomazone e flumioxazine aplicados sequencialmente. O experimento foi conduzido sob condições de campo, no município de Junqueiro, AL, na safra 2017/2018. Os tratamentos foram formados pela combinação de oito variedades de mandioca (Caravela, Pretinha, Sipeal 2, BRS Aramaris, São João da Barra, Cariri Branca, 8707-08 e 740-10) com a aplicação ou não dos herbicidas clomazone (1.260 g ha-1) e flumioxazine (100 g ha-1) em pré-emergência. A fitointoxicação foi avaliada visualmente...
Tipo: Folhetos
Palavras-chave: Mandioca; Herbicida; Praga de Planta; Controle Biológico; Cassava.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123872

Reação de clones de batata à pinta preta.
Provedor de dados: 14
Autores: LOURENÇO JUNIOR, V.; MARTIN, F. H. S. R.; SILVA, G. O. da; PEREIRA, A. da S.
O objetivo neste estudo foi identificar clones resistentes do Programa de Melhoramento da Embrapa. Avaliou-se os genótipos ?Agata?, ?Asterix?, ?Cristal?, ?Catucha?, F150-08-03, F18-09-03, F97-07-03, F82-08-10, F102-08-04, F63-10-07, F158-08-01, F183-08-01 e F158-08-02 em casa de vegetação. O experimento foi conduzido em novembro de 2016 na Embrapa Hortaliças, Brasília, DF.
Tipo: Folhetos
Palavras-chave: Alternaria grandis; Doença de Planta; Melhoramento Genético Vegetal; Solanum Tuberosum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124412

CONSÓRCIO de fruteiras nativas para ampliar a biodiversidade: programa 42: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre as vantagens do consórcio de fruteiras nativas amazônicas com culturas alimentares de ciclo curto. A pesquisadora Aparecida Claret, da Embrapa Amazônia Ocidental, explica como fazer esses plantios nas entrelinhas dos cupuaçuzeiros, diversificando assim os pomares com outras espécies nativas. O programa também mostra que essa prática sustentável pode aumentar a renda do produtor, a partir da inserção de frutas nativas nos mercados e feiras.
Tipo: Gravações de som
Palavras-chave: Biodiversidade; Consorciação de Cultura; Cupuaçu; Espécie Nativa; Fruta; Renda; Produtor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126161

Padronização das análises moleculares para a pesquisa de Wolbachia em artrópodes parasitas de interesse pecuário.
Provedor de dados: 14
Autores: CHAPAVAL, L.; BRITO, L. G.; BARBIERI, F. da S.; MALAGO JUNIOR, W.; BILHASSI, T. B.
Insetos e outros artrópodes são hospedeiros comuns de bactérias transmitidas por via materna (Duron; Hurst, 2013). Esses endossimbiontes hereditários podem ter uma forte influência na ecologia do hospedeiro. Tais bactérias transmitidas verticalmente são numerosas e dependentes do hospedeiro para sobrevivência e transmissão. Certas associações são obrigatórias para ambos os parceiros, e geralmente envolvem um benefício nutricional para o hospedeiro. Outras bactérias hereditárias são facultativas e variam, em associações, de mutualistas a parasitas quando observadas sob a perspectiva do hospedeiro. Entre estas, a Wolbachia é a mais comum e a mais difundida simbionte facultativa de insetos e artrópodes (Hilgenboecker et al., 2008; Zug; Hammerstein, 2012).
Tipo: Folhetos
Palavras-chave: Endossimbionte hereditário; Ecologia do hospedeiro; Wolbachia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120107

Ácido xilônico: produção de ácido xilônico por leveduras.
Provedor de dados: 14
Autores: ALMEIDA, J. R. M. de.
Tipo: Folders
Palavras-chave: Ácido xilônico; Biomassa; Fermentação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123237

BRS PAI D'ÉGUA: cultivar de açaizeiro irrigado para terra firme: programa 2: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a BRS Pai d’Égua, a nova cultivar de açaizeiro irrigado de terra firme, que apresenta duas características de especial interesse para o agricultor: produção na entressafra e frutos menores. O pesquisador João Tomé, da Embrapa Amazônia Oriental, traz detalhes sobre a importância da qualidade das sementes e da irrigação, bem como da adubação desta cultivar, que traz ganhos ao produtor, às associações, cooperativas, mercado varejista e exportador, e ao consumidor.
Tipo: Gravações de som
Palavras-chave: Açaí; Agricultor; Adubação; Entressafra; Irrigação; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119529

O controle da reprodução em vacas leiteiras.
Provedor de dados: 14
Autores: MORAES, J. C. F.; SOUZA, C. J. H. de.
A importância da fertilidade em rebanhos leiteiros; As metas a serem alcançadas; A problemática da reprodução de vacas em lactação; O controle da reprodução propriamente dito; As recomendações básicas para o controle da reprodução
Tipo: Folhetos
Palavras-chave: Reprodução Animal; Vaca Leiteira; Pecuária; Bovinocultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125155

Territorial intelligence: planning, management and systems to support strategic decisions.
Provedor de dados: 14
Autores: COSTA, J. R. da; ALENCAR, J. R. de; COSTA, P. da; HAMMES, V. S.; VICTORIA, D. de C.; JESUS, K. R. E. de; CIPRIANI, H. N.; BUSCHINELLI, C. C. de A.; CALEGARIO, F. F.; RODRIGUES, G. S.; MAGALHÃES, L. A.; MARMO, C. R.; LIRA-GUEDES, A. C.; GUEDES, M. C.; FORATO, L. A.
Strategic territorial intelligence. Participatory community-level planning. PGMacro method. Planning for farm management. Territorial management. Agricultural and hydrological models, mapping of agricultural areas and integration of spatial data for managemen. Environmental management plan for small rural propert. Integrated waste management. Urban and peri-urban farming. Sistema Filho. Productive yard. Vegetable garden in small spaces. Maize intercropped with corn in urban agriculture area. Recommendations for pest control in urban gardens. Strategic management decision support systems. INOVA-tec System for evaluating technological innovations impact. Agrometeorological Monitoring System. Software for georeferenced data and image collection. System for...
Tipo: Parte de livro
Palavras-chave: Technological solutions.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129311

Gestão pecuária e desafios futuros.
Provedor de dados: 14
Autores: DIAS, F. R. T.; MALAFAIA, G. C.; BISCOLA, P. H. N.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127142

PORTFÓLIO pastagens: pastagens do Brasil: geração de alimentos, couro, cosméticos e medicamentos.
Provedor de dados: 14
Para que o produtor rural tenha melhores condições de atuar, a Embrapa desenvolve tecnologias e alternativas de pastagens cada vez mais produtivas, sustentáveis, acessíveis e adaptadas a cada região. O Brasil é continental e o pasto que se adequa ao Sul é bem diferente daquele que permite bons resultados no Nordeste ou no Pantanal. As pesquisas do portfólio apontam que é possível recuperar áreas degradadas e torná-las novamente produtivas, diminuindo as emissões de gases de efeito estufa e promovendo uma pecuária realmente sustentável.
Tipo: Folders
Palavras-chave: Pastagem; Produção Animal; Agricultura Familiar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1151375

Germinação de sementes de Eleusine indica e E. tristachya: fotoblastia.
Provedor de dados: 14
Autores: AMARAL, R. S. S.; PEREIRA, L. L.; GUIMARÃES, V. R.; ANTUNES NETO, A.; PASSOS, A. M. A. dos.
Objetivou-se com este trabalho avaliar o efeito da fotoblastia e do nitrato de potássio sobre potencial germinativo de sementes de Eleusine indica e E. tristachya oriundas do banco de germoplasma de Eleusine preservadas na Embrapa Milho e Sorgo. Por representar em seu escopo meios de manter a diversidade genética de sementes, o trabalho tem aderência ao Objetivo de Desenvolvimento Sustentável nº 2: ?Objetivo 2. Acabar com a fome, alcançar a segurança alimentar e melhoria da nutrição e promover a agricultura sustentável?
Tipo: Folhetos
Palavras-chave: Sustentabilidade; Agenda 2030; Objetivo de desenvolvimento sustentável; Selo ODS 2; Semente; Poder Germinativo; Germinação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126608

As inovações de Rosa e Tião para uma boa produção em pequenas áreas: Centro dos Passarinhos, Lago dos Rodrigues, MA.
Provedor de dados: 14
Editores técnico da coleção: Roberto Porro e Anderson Cássio Sevilha.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122898

Processamento de doce de umbu com amêndoas de licuri.
Provedor de dados: 14
Autores: CASTRO, C. D. P. da C.; RYBKA, A. C. P.
Este trabalho tem o objetivo de apresentar a descrição do processo desenvolvido pela Embrapa Semiárido para a produção de doce de umbu com amêndoas de licuri, como produto potencial para ser incorporado na comercialização de doces derivados de plantas da Caatinga. Assim, o licuri poderá agregar maior valor nutricional e cultural ao doce de umbu e representar uma nova opção de sabor e textura.
Tipo: Folhetos
Palavras-chave: Aceitação do consumidor; Amêndoas de licuri; Doce de umbu; Licuri; Valor nutricional; Umbu; Spondias Tuberosa; Caatinga; Fruta Tropical; Processamento; Tecnologia de Alimento; Spondias; Food technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123939

Antecipe: cultivo intercalar antecipado.
Provedor de dados: 14
Autores: KARAM, D.; BORGHI, E.; MAGALHAES, P. C.; PAES, M. C. D.; PEREIRA FILHO, I. A.; MANTOVANI, E. C.; SOUZA, T. C. de; ADEGAS, F. S.
O Sistema Antecipe, de cultivo antecipado, foi desenvolvido pela Empresa Brasileira de Pesquisa Agropecuária (Embrapa) e parceiros para atender uma das principais premissas para o aumento de produtividade do sistema soja-milho safrinha no Brasil. Trata-se de um sistema de semeadura intercalar do milho nas entrelinhas da soja, antes da colheita da cultura oleaginosa. Esse sistema, desenvolvido ao longo de 13 anos de pesquisa em várias regiões do País, permite o estabelecimento precoce da cultura do milho, em até 20 dias, com redução de riscos de frustração por perda de produtividade de safrinha, em função das condições climáticas adversas no final do período de verão e início de outono. Essa antecipação permite maiores produtividades de milho em épocas de...
Tipo: Livros
Palavras-chave: Zea Mays; Semeadura; Produtividade; Cultivo Intercalado; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126609

A produção da família Alves de Sousa aliada à recuperação do solo: Centro do Bertolino, Lago do Junco, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; BIAGINI, Y. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas prática; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122786

Parâmetros microbiológicos e enzimáticos em área cultivada com cana-de-açúcar com diferentes quantidades de palha.
Provedor de dados: 14
Autores: VIEIRA, R. F.; RAMOS, N. P.; PAZIANOTTO, R. A. A.
Resumo - Os efeitos da manutenção de quantidades diferentes de palha foram avaliados após a colheita da cana-de-açúcar, utilizando indicadores microbiológicos e enzimáticos de solo. O experimento foi conduzido utilizando três quantidades de palha: T0, toda a palha foi retirada do solo; T50 e T100, 50% e 100% da palha foram mantidas sobre o solo, respectivamente. O N da biomassa microbiana e a atividade da beta-glucosidase (AG) aumentaram com as quantidades de palha, ao contrário da atividade da urease. A respiração basal apresentou tendência crescente com o aumento das quantidades de palha. O nitrogênio potencialmente mineralizável (NPM) não apresentou diferença significativa entre os T50 e T100, mas foi maior do que o obtido no T0. Os resultados relativos...
Tipo: Folhetos
Palavras-chave: Qualidade do solo; Atividade microbiana; Solo; Palha; Microbiologia do Solo; Uréase; Cana de Açúcar; Straw mulches; Sugarcane; Sugarcane soils; Soil quality; Microbial activity; Beta-glucosidase.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124307

Descrição da metodologia para o zoneamento das áreas potenciais ao recebimento e disposição de biossólidos.
Provedor de dados: 14
Autores: CUNHA, H. N. da; SPIERING, V.; SIQUEIRA, R. de O.; MIURA, A. K.; COUTO, O. F. V.; SOUSA, L. P. de; GUARINO, E. de S. G.
Este trabalho é parte de um resultado prévio da cooperação técnica entre a Embrapa Clima Temperado e a Corsan, e tem por objetivo descrever um método para delinear e quantificar as áreas sem restrições ambientais para a destinação agrícola de biossólidos advindos de ETEs, que foram utilizados para subsidiar o ?Zoneamento do uso agrossilvicultural de resíduos de leta /lete e derivados no Rio Grande do Sul?.
Tipo: Folhetos
Palavras-chave: Lodo Residual.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128569

COVID-19: orientações de prevenção para fruticultores do Submédio do Vale do São Francisco.
Provedor de dados: 14
Autores: VESCHI, J. L. A.; LIMA, M. A. C. de; CHAPAVAL, L.; LOPES, P. R. C.
Nesta publicação são apresentadas medidas para prevenir o contágio pelo coronavírus, agente causal da COVID-19. São iniciativas que, uma vez adotadas, contribuirão com a prevenção da doença, preservação da saúde dos funcionários e a própria permanência da empresa agrícola na atividade, pois atuar de forma consonante com as medidas sanitárias recomendadas pode representar diferenciais competitivos. Espera-se, assim, informar sobre a necessidade de adoção das medidas tratadas, orientar como executar e cooperar com a ampla adoção das medidas de prevenção à COVID-19 nas propriedades produtoras de frutas no Submédio do Vale do São Francisco.
Tipo: Folhetos
Palavras-chave: COVID-19; Vale do São Francisco; Coronavírus; Fruticultura irrigada; Fruticultura; Colheita; Pós-Colheita; Higiene; Saúde; Vírus; Transmissão de Doença; Fruits; Postharvest injuries; Postharvest systems.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124895

Fungicidas multissítios no controle da Ramulária (Complexo Ramulariopsis gossypii e Ramulariopsis pseudoglycines) do algodoeiro no Norte de Mato Grosso.
Provedor de dados: 14
Autores: CHITARRA, L. G.; PERINA, F. J.; TARDIN, F. D.; WRUCK, D. S. M.; ARAÚJO, A. E. de.
A mancha de ramulária, causada pelo complexo de fungos Ramulariopsis gossypii e Ramulariopsis pseudoglycines (sin. Ramularia areola) é a principal doença foliar do algodoeiro devido a sua alta frequência e intensidade de ocorrência, principalmente em áreas sem a rotação de culturas. O controle químico a base de estrobilurinas, triazóis, hidróxido de fentina e carboxamidas (sítios-específicos), isolados ou em combinação com multissitios é uma das táticas de manejo mais utilizada para o controle da doença. Esse trabalho teve como objetivos determinar a eficácia dos fungicidas multissítios Cuprodil, Unizeb Gold e Previnil, isolados ou em combinação com fungicidas sítios-específicos no controle da mancha de ramulária e determinar a influência desses fungicidas...
Tipo: Folhetos
Palavras-chave: Algodão; Planta; Doença Fúngica; Fungicida; Ramularia; Cotton; Fungal diseases of plants; Fungicides.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133966

Revitalização da citricultura do Vale Jaguaribe - CE.
Provedor de dados: 14
Autores: PASSOS, O. S.; SOUZA, J. da S.; ALMEIDA, C. O. de; CARVALHO, J. E. B. de; BASTOS, D. C.; LEDO, C. A. da S.
Tipo: Folhetos
Palavras-chave: Fruta Cítrica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121523

USO DE fertilizante biológico para aumentar aproveitamento do fósforo: programa 17: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o uso de um fertilizante biológico, inédito no País, que aumenta o aproveitamento do fósforo. Trata-se do BiomaPhos, um inoculante biológico, totalmente desenvolvido a partir de tecnologia nacional, por meio de uma parceria público-privada entre a Embrapa e a empresa Bioma. A pesquisadora Christiane Paiva, da Embrapa Milho e Sorgo, traz detalhes sobre esse inoculante, que alia sustentabilidade e produtividade. O ouvinte vai saber ainda que esse produto pode mudar o quadro da alta dependência brasileira do mercado internacional de fertilizantes.
Tipo: Gravações de som
Palavras-chave: Fertilizante; Fósforo; Inoculante; Produtividade; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121969

PRODUÇÃO de pequenas frutas de clima temperado: programa 42: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a produção de pequenas frutas de clima temperado - as chamadas berries. O Programa tem como ponto de partida os pomares mineiros, onde vem atuando a Empresa de Pesquisa Agropecuária de Minas Gerais - a EPAMIG, parceira da Embrapa. A partir da perspectiva da agricultura familiar, o pesquisador Emerson Gonçalves, da EPAMIG, detalha as características desse cultivo, suas exigências climáticas e hídricas, bem como os cuidados na pós-colheita.
Tipo: Gravações de som
Palavras-chave: Fruta de Clima Temperado; Agricultura Familiar; Pomar; Pós-Colheita.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126143

DR. FEIJÃO: aplicativo que facilita a vida do produtor: programa 2: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana apresenta o Doutor Feijão, aplicativo que aproxima os produtores das soluções tecnológicas, desenvolvidas pela Embrapa para o sistema produtivo do feijão comum. O analista Aluísio Goulart, da Embrapa Arroz e Feijão, conta que essa ferramenta auxilia técnicos e agricultores, trazendo informações sobre o desenvolvimento da planta e o manejo e pragas e doenças, entre outras. Também disponibiliza publicações, identifica parceiros para aquisição de sementes, e o põe o produtor em contato direto com a Embrapa.
Tipo: Gravações de som
Palavras-chave: Sistema produtivo; Feijão; Agricultor; Praga de Planta; Doença de Planta; Semente; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119518

Eficiência de inseticidas para o controle da mosca-branca Bemisia tabaci biótipo B (Hemiptera: Aleyrodidae) em soja nas safras 2017/2018 e 2018/2019: resultados sumarizados dos ensaios cooperativos.
Provedor de dados: 14
Autores: TOMQUELSKI, G. V.; HIROSE, E.; FARIAS, A.; CZEPAK, C.; PITTELKOW, F. K.; RUTHES, E.; GRIGOLLI, J. F. J.; RATTES, J.; VIVAN, L. M.; GOUSSAIN JUNIOR, M. M.; PEIXOTO, M. F.; TAMAI, M. A.; IDE, M. A.; MARTINS, M. C.; LOBAK, T.
Tipo: Folhetos
Palavras-chave: Inseticida; Mosca Branca; Controle Químico; Insecticides; Chemical control.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121519

Queimadas, secas, cheias, mercado: o que influencia o preço do bezerro do Pantanal?
Provedor de dados: 14
Autores: DIAS, F. R. T.; BISCOLA, P. H. N.; MALAFAIA, G. C.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128698

Plantio direto de tomate sobre coberturas vivas em sistema orgânico de produção.
Provedor de dados: 14
Autores: RESENDE, F. V.; VIDAL, M. C.; SOUZA, R. B. de.
Este trabalho teve como objetivo avaliar o plantio direto de tomate sobre coberturas vivas de leguminosas perenes e gramíneas em sistema orgânico de produção. Foram implantados dois experimentos em delineamento de blocos casualizados com três repetições associando o uso de cobertura viva de solo com amendoim forrageiro (Arachis pintoii), grama esmeralda (Zoysia japonica) e grama batatais (Paspalum notatum), tendo por testemunha o plantio tradicional com solo sem cobertura.
Tipo: Folhetos
Palavras-chave: Tomate; Agricultura Orgânica; Cobertura do Solo; Solanum lycopersicum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121614

Metodologia para avaliação de perdas na colheita e no beneficiamento de cenoura.
Provedor de dados: 14
Autores: LANA, M. M.; MOITA, A. W.
Nesse trabalho, é apresentada uma metodologia para quantificação das perdas ocorridas na colheita e no beneficiamento de cenoura, devido ao descarte de raízes apropriadas para consumo humano, mas que não atendem os padrões comerciais quanto ao tamanho e formato, e de raízes impróprias para consumo seja por estarem fibrosas ou com sintomas de ataques por pragas.
Tipo: Folhetos
Palavras-chave: Cenoura; Perda Durante a Colheita; Pós-Colheita; Desperdício; Daucus Carota.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125710

A tradição do coco-babaçu na família de Francilene e Antônio Adão: Povoado São João da Mata, Lago dos Rodrigues, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122912

Emulsões estabilizadas por celulose bacteriana nanofibrilada: efeito do grau de oxidação.
Provedor de dados: 14
Autores: ROSA, M. de F.; GOIANA, M. L.; PEREIRA, A. L. S.; MORAIS, J. P. S.
Emulsões Pickering são sistemas formados pela homogeneização de dois líquidos imiscíveis entre si, estabilizados por partículas sólidas coloidais. Partículas naturais estão sendo amplamente estudadas para redução ou substituição de surfactantes sintéticos, empregados como estabilizantes, devido aos seus efeitos adversos, incluindo toxicidade. Uma das fontes naturais promissoras é a celulose bacteriana, que, quando utilizada na forma de nanofibrilas, permite modificações nas propriedades de superfície e tamanho das micelas da emulsão por mecanismos físicos e químicos. No presente trabalho, celulose bacteriana nanofibrilada (CBNF), obtida por combinação de oxidação mediada por 2,2,6,6-tetrametilpiperidin-1-oxil (TEMPO) e fibrilação em moinho coloidal, foi...
Tipo: Folhetos
Palavras-chave: Emulsões Pickering; Nanotecnologia; Oxidação TEMPO; Surfactantes; Pickering emulsions; TEMPO oxidation; Surfactants.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126272

Uma década promissora.
Provedor de dados: 14
Autores: FACO, O.; NOBREGA, A. R. da.
Tipo: Artigo na mídia
Palavras-chave: Caprinocultura; Ovinocultura; Cadeia Produtiva; Políticas Públicas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120680

Geoprocessamento e análise regional.
Provedor de dados: 14
Autores: LUZ, R. A. da; UMMUS, M. E.
Introdução. Cartografia. Cartografia sistemática. Cartografia temática. Dados geográficos. Sistemas de Informações Geográficas. Geoprocessamento. Aplicações do geoprocessamento no desenvolvimento regional. Limitações. Considerações finais.
Tipo: Parte de livro
Palavras-chave: Geoprocessamento; Análise espacial; Planejamento Regional; Economia; Desenvolvimento Agrícola; Cartografia; Sistema de Informação Geográfica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128596

Alface e outras folhosas (jambu, coentro, salsa, cebolinha, couve, rúcula, chicorinha).
Provedor de dados: 14
Autores: ARAUJO, S. M. B.; GUSMÃO, S. A. L.; VIÉGAS, I. de J. M.; CHENG, S. S.
Tipo: Parte de livro
Palavras-chave: Jambu; Alface; Coentro; Salsa; Cebolinha; Couve; Rúcula; Chicória.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127293

Integração lavoura-pecuária no Cerrado: caracterização físico-hídrica de um latossolo vermelho.
Provedor de dados: 14
Autores: LIMA, M. de L.; MEDEIROS, J. C.; OLIVEIRA, D. G. de; STONE, L. F.; MACHADO, P. L. O. de A.; MADARI, B. E.
A utilização de solos do Cerrado em sistemas de integração lavoura-pecuária tem provocado alterações de sua estrutura que, por sua vez, interfere nas propriedades físico-hídricas do solo. O estudo objetivou avaliar as mudanças nos atributos físico-hídricos de um Latossolo Vermelho de textura argila em sistemas de integração lavoura-pecuária. Os tratamentos consistiram em duas áreas de pastagem, uma com um ano e a outra com três anos de implantação do pasto. Como área de referência avaliou-se uma área de Cerrado nativo. A amostragem em cada uma das áreas seguiu um delineamento inteiramente casualizado, com cinco repetições. A densidade do solo, macro, micro e porosidade total, condutividade hidráulica saturada e a curva de retenção de água do solo foram...
Tipo: Parte de livro
Palavras-chave: Integraçã lavoura-pecuária; Pisoteio animal; Degradação de pastagem; Manejo do Solo; Física do Solo; Compactação do Solo; Pastagem Consorciada; Recuperação do Solo; Cerrado; Soil management; Soil physical properties; Cerrado soils.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1155324

What are the obstacles to universal access to energy sources in Brazil?
Provedor de dados: 14
Autores: GAMBETTA, R.; LEITAO, R. C.; OTENIO, M. H.; KUNZ, A.
Tipo: Parte de livro
Palavras-chave: Energia; Desenvolvimento Socio-Econômico; Energia Elétrica; Políticas Públicas; Energy use and consumption; Energy resources; Socioeconomic development.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131185

Controle biológico de pragas e doenças.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000980900/controle-biologico-de-pragas-e-doencas.html.
Tipo: Artigo na mídia
Palavras-chave: Agentes biológicos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129602

Alimento, nutrição e saúde em destaque.
Provedor de dados: 14
Autores: LOPES, M. A.
Hipócrates, o pai da medicina, observou, há 2.500 anos, que muitas doenças se originam da natureza e podem ser evitadas quando se estabelece um equilíbrio entre o meio ambiente, os alimentos ingeridos e o espírito. Seu principal ensinamento- "o alimento é o nosso melhor remédio" - ganha especial importância neste momento em que a pandemia de covid-19 ceifa vidas, destrói a atividade econômica e ameaça a sociedade de múltiplas formas.
Tipo: Artigo na mídia
Palavras-chave: Pandemia; Covid-19; Coronavírus; Sistema imunológico humano; Nutrição Humana; Sistema de Alimentação; Imunidade; Alimento; Pandemic; Food consumption; Human nutrition; Immunity.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123553

Covid-19: manual para produtores de hortaliças na Região Serrana Fluminense.
Provedor de dados: 14
Autores: AQUINO, A. M. de; MADEIRA, N. R.; ASSIS, R. L. de; ANTONIO, G. J. Y. A.; MACHADO, C. R. de L.
Medidas para proteção contra o coronavírus durante as atividades de aquisição de insumos agrícolas, práticas culturais, visitas, colheita e pós-colheita de hortaliças. Orientações para evitar aglomeração, procedimentos para proteção individual. Recomendações da OMS.
Tipo: Folhetos
Palavras-chave: Produtor rural; Higienização pessoal; Pandemia 2020; Protocolos de saúde; Manejo de hortaliças.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125475

Macaúba: processo de refino do óleo de macaúba.
Provedor de dados: 14
Autores: FAVARO, S. P.
Tipo: Folders
Palavras-chave: Química de renováveis; Refino; Macaúba.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123229

Hortaliça não é só salada. Sopa cremosa.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com sopa cremosa. Sopa de abóbora com taioba. Sopa de batata com alho-porró.
Tipo: Folders
Palavras-chave: Hortaliça; Culinária; Economia Domestica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129101

Agricultura e pecuária sempre foram complementares.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000985328/agricultura-e-pecuaria-sempre-foram-complementares.html.
Tipo: Artigo na mídia
Palavras-chave: Produção agropecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121568

PORTFÓLIO de convivência com a seca no Semiárido: transformando ameaças em oportunidades.
Provedor de dados: 14
A seca é um fenômeno natural que causa grande impacto sobre os sistemas de produção agropecuários e a vida das pessoas que habitam o Semiárido brasileiro. É nessa região onde se concentra grande parte da pobreza do país. Mas também é nela que cresce a Caatinga, único bioma exclusivamente nacional, rico em diversidade e cheio de potenciais.
Tipo: Folders
Palavras-chave: Seca; Sistema de Produção; Caatinga; Biodiversidade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1151378

A flora amazônica e as potencialidades de inovação no agronegócio de flores e de plantas ornamentais.
Provedor de dados: 14
Autores: SEGOVIA, J. F. O.
Tipo: Parte de livro
Palavras-chave: Planta Ornamental; Flor Tropical.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129376

Pera 'Abate Fetel' - caracterização dos atributos de qualidade e determinação do tempo de condicionamento por temperatura para indução do amadurecimento.
Provedor de dados: 14
Autores: ANTONIOLLI, L. R.; HELM, C. V.
As peras ?Abate Fetel? são muito apreciadas pela excelente qualidade sensorial, entretanto o formato não convencional e o excesso de russeting podem causar estranheza e até mesmo a rejeição do fruto. A publicação apresenta os resultados de dois estudos conduzidos com o objetivo de caracterizar os atributos físicos, químicos, nutricionais e sensoriais de peras ?Abate Fetel? colhidas em diferentes estádios de maturação, bem como determinar o tempo necessário de condicionamento por baixa temperatura para a indução do amadurecimento dos frutos.
Tipo: Folhetos
Palavras-chave: Peras europeias; Firmeza de polpa; Composição mineral; Intenção de compra; Aceitação; Russeting; Pereira; Análise sensorial; Pera abate fetel; Cultivar de pereira; Pêra; Maturação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129350

Perspectivas para a pecuária brasileira em 2021.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; DIAS, F. R. T.; BISCOLA, P. H. N.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128704

Resultados do monitoramento integrado da colheita da soja na safra 2019/2020 no Paraná
Provedor de dados: 14
Autores: CONTE, O.; POSSOMAI, E. J.; CECERE FILHO, P.
Tipo: Folhetos
Palavras-chave: Controle Integrado; Soja; Colheita; Integrated crop management; Soybeans.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130138

Sistema de Controle de Pesca de Mato Grosso do Sul SCPESCA/MS 24-2017.
Provedor de dados: 14
Autores: CATELLA, A. C.; CAMPOS, F. L. de R.; ALBUQUERQUE, S. P.
O SCPesca/MS constitui uma fonte importante de informações para os setores da pesca e sociedade em geral, contribuindo com subsídios para as políticas públicas e tomadas de decisões relacionadas à gestão sustentável dos recursos pesqueiros da Bacia do Alto Paraguai em Mato Grosso do Sul.
Tipo: Livros
Palavras-chave: Peixe; Estatística Pesqueira; Fish; Fisheries statistics.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129121

Análise técnica da irrigação subótima na cultura do sorgo em consórcio com espécies forrageiras.
Provedor de dados: 14
Autores: FURTADO, J. I. F.; OLIVEIRA, I. C. M.; ANDRADE, C. de L. T. de; RESENDE, R. M. S.
A Integração Lavoura-Pecuária é uma ótima estratégia para suprir a alimentação animal em períodos de seca, pois, além de produzir uma silagem de qualidade e estabelecer uma pastagem vigorosa, permite a formação de cobertura do solo para plantio direto subsequente. O sorgo forrageiro é uma alternativa viável nesse sistema, pois é tolerante ao déficit hídrico e adaptado a condições limitantes para o cultivo do milho. Todavia, a estiagem prolongada pode comprometer a produção e, por isso, o emprego da irrigação subótima constitui-se estratégia para incrementar a eficiência e uso da água sem perdas significativas de rendimento. O objetivo deste estudo foi avaliar a resposta, em termos de produtividade de fitomassa para silagem e produtividade da água, do sorgo...
Tipo: Folhetos
Palavras-chave: Estresse hídrico; Integração Lavoura-Pecuária; Irrigação com déficit; Irrigação; Sorghum Bicolor; Consorciação de Cultura; Silagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126365

Queijo Coalho caprino maturado e defumado adicionado de cultura lática nativa com potencial probiótico.
Provedor de dados: 14
Autores: LAGUNA, L. E.; SANTOS, K. M. O. dos; BARCELOS, S. C. de; SALLES, H. O.; MORAES, G. M. D. de; EGITO, A. S. do.
Tipo: Folhetos
Palavras-chave: Queijo de cabra; Alimento funcional probiótico; Produto lácteo; Fabricação artesanal; Processamento artesanal; Queijo defumado; Queijo maturado; Milk products; Caprino; Tecnologia de Alimento; Produto Derivado do Leite; Food technology; Goat cheese; Goat milk; Lactobacillus rhamnosus; Probiotics; Health foods.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128183

Intensificação agropecuária no Cerrado: construção da fertilidade do solo como base para aumento do potencial produtivo e convivência com a seca.
Provedor de dados: 14
Autores: RESENDE, A. V. de; GONTIJO NETO, M. M.; BORGHI, E.; SIMÃO, E. de P.; GIEHL, J.; ABREU, S. C.; HURTADO, S. M. C.; CAMPANHA, M. M.; COSTA, T. C. e C. da; MARRIEL, I. E.; VASCONCELLOS, J. H.; SANTANA, D. P.; ALVARENGA, R. C.; VIANA, J. H. M.
A presente publicação enfoca a tecnologia de manejo da fertilidade do solo como ponto de partida para a superação dos fatores limitantes ao desenvolvimento da agropecuária em áreas com menor aptidão por causa de restrições edafoclimáticas. Tendo como base um estudo de caso envolvendo níveis de investimento tecnológico na conversão de pastagem degradada em sistema intensificado de Integração Lavoura-Pecuária-Floresta (ILPF), descreve-se um passo a passo ilustrado das práticas de correção da acidez do solo e de adubações corretivas e de manutenção. Na sequência, são reportadas as alterações e a evolução da fertilidade do solo decorrentes destas intervenções. São enfocados, ainda, os resultados de algumas características relacionadas ao vigor vegetativo da...
Tipo: Livros
Palavras-chave: Integração Lavoura-Pecuária-Floresta; ILPF; Pastaggem degradada; Selo ODS 2; Objetivo de desenvolvimento sustentável; Agenda 2030; Sustentabilidade; Selo ODS 13; Selo ODS 12; Selo ODS 8; Selo ODS 15; Fertilidade do Solo; Uso da Terra.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126456

Escoar a produção por bacias logísticas é mais eficiente.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000989027/escoar-a-producao-por-bacias-logisticas-e-mais-eficiente.html.
Tipo: Artigo na mídia
Palavras-chave: Produção agropecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122211

Utilizando Selenium para construir testes automatizados no sistema Banco de Dados de Pedigree, Fenótipos e Genótipos.
Provedor de dados: 14
Autores: VIEIRA, F. D.
Nesse documento, será mostrado, de forma sucinta, como foram implementados os testes Selenium no sistema BDPFG.
Tipo: Folhetos
Palavras-chave: Automzação de testes; Sistema web; Sistema BDPFG; Framework Selenium.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127939

Principais enteroparasitoses em terneiros de rebanhos bubalinos leiteiros no Rio Grande do Sul.
Provedor de dados: 14
Autores: DAME, M. C. F.
No Rio Grande do Sul, a aptidão leiteira dos bubalinos vem sendo explorada, desde o ano de 2000 com a criação da Cooperbúfalo (Cooperativa Sul-riograndense de Bubalinocultores). O leite é transformado em produtos como queijos, principalmente o tipo muçarela. A Embrapa vem desenvolvendo projeto de melhoramento genético em bubalinos (Promebull), liderado para Embrapa Amazônia Oriental (Belém ? PA), com a parceria de outras Unidades da Embrapa, instituições de ensino e propriedades parceiras. A Embrapa Clima Temperado acompanhou o desempenho produtivo das propriedades leiteiras no Rio Grande do Sul, onde, além da quantidade e qualidade do leite produzido, foi também monitorada a saúde dos rebanhos.
Tipo: Folhetos
Palavras-chave: Búfalo; Melhoramento Genético Animal; Leite; Rebanho; Saúde; Parasitose.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1134125

Sequestro de carbono em sistemas de produção de grãos e fibras em solo arenoso do Cerrado da Bahia.
Provedor de dados: 14
Autores: BOGIANI, J. C.; FERREIRA, A. C. de B.; BORIN, A. L. D. C.; SOFIATTI, V.; PERINA, F. J.
Os solos agrícolas, além de sustentarem a produção de grãos e algodão, são potenciais acumuladores de carbono. Entretanto, cada solo responde de forma diferenciada à produção a aos serviços ambientais, conforme o tipo de solo, ambiente, manejo e plantas cultivadas. Neste estudo, foi avaliada a quantidade de carbono sequestrada por sistemas de produção, considerando a quantidade contida no solo, na biomassa de cobertura e nos produtos colhidos. O desenho experimental foi em blocos casualizados, com quatro repetições e com os tratamentos: preparo convencional do solo (PC) e monocultivo de soja (T1), milho (T2) ou algodão (T3); sistema plantio direto (SPD) com rotação de soja e milho + braquiária (T4); milho + braquiária, algodão e soja + crotalária na...
Tipo: Folhetos
Palavras-chave: Gases de efeito estufa; Rotação de culturas; Algodão; Cobertura do Solo; Milho; Soja.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124377

Núcleo de conservação do pirarucu (Arapaima gigas): Embrapa Pesca e Aquicultura.
Provedor de dados: 14
Autores: VARELA, E. S.; LIMA, A.; TORATI, L.; BENTES, A.
O Pirarucu (Arapaima gigas) é considerado o maior peixe de escamas de água doce do mundo, podendo chegar a 200 Kg e três metros de comprimento. Em ambiente produtivo, essa espécie pode atingir 10 Kg em um ano com 57% de rendimento de filé sem espinhos. A espécie ocorre naturalmente na Bacia Amazônica, do Peru até a bacia Araguaia-Tocantins. O banco de germoplasma do pirarucu na Embrapa já pode ser considerado um patrimônio genético da sociedade brasileira dado ao seu valor real e potencial para desenvolver a aquicultura regional e reduzir a pressão de pesca predatória dos estoques silvestres.
Tipo: Parte de livro
Palavras-chave: Peixe; Pirarucu; Banco de Germoplasma; Arapaima gigas; Fish.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129522

Controle biológico de pragas da agricultura.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Planta invasora; Parasitoide; Inimigo Natural; Controle Microbiano; Doença de Planta; Predador.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121825

Cultivo do coqueiro (Cocos nucifera L) em sistemas integrados de produção e sua adequação ao programa de agricultura de baixo carbono (ABC).
Provedor de dados: 14
Autores: FONTES, H. R.; RANGEL, J. H. de A.
Tipo: Artigo na mídia
Palavras-chave: Sistema integrado; Coco; Carbono; Sistema de Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137779

A terceira onda da pecuária de corte no Brasil.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; DIAS, F. R. T.; BISCOLA, P. H. N.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128700

Avaliação de produtos biológicos e um indutor de resistência no controle do míldio da videira.
Provedor de dados: 14
Autores: CAVALCANTI, F. R.; CASSUBA, K. F.; FIORAVANÇO, J. C.
As doenças causadas por microrganismos fitopatogênicos resultam em grandes perdas econômicas para a viticultura nacional e mundial. O míldio é uma doença causada pelo pseudofungo Plasmopara viticola (Berk. &amp; Curtis) Berlese &amp; De Toni e tem seu ciclo de vida favorecido no Sul do Brasil, por causa das condições gerais de clima temperado típicas da região. O míldio é normalmente controlado por aplicação de substâncias químicas não recomendadas à viticultura orgânica. Nesse sentido, o controle biológico ganha uma importância ainda maior como alternativa para o controle da doença em sistemas de cultivo não convencionais.
Tipo: Folhetos
Palavras-chave: Videira; Produtos biológicos; Indutor de resistência; Microrganismos fitopatogênicos; Míldio; Uva; Parreira; Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124483

Hortaliça como comprar, conservar e consumir: almeirão.
Provedor de dados: 14
Autores: TAVARES, S. A.; MATOS, M. J. F.; LANA, M. M.; SANTOS, F. F. dos; MELO, M. F. de.
Almeirão. Como comprar. Como conservar. Como consumir. Dicas. Almeirão com arroz. Refogado de almeirão com feijão.
Tipo: Folders
Palavras-chave: Almeirão; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125630

Biogás transforma passivos ambientais em ativos energéticos.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000994788/biogas-transforma-passivos-ambientais-em-ativos-energeticos.html.
Tipo: Artigo na mídia
Palavras-chave: Energias alternativas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124024

As boas práticas de dona Alódia na produção do sabonete de babaçu da AMTR: Comunidade Ludovico, Lago do Junco, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; GUSMÃO, L. A.; SOUSA, R. C. de.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo; Mulher Rural.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122844

DICAS e técnicas de plantio para aumentar a produção de abacaxi: programa 13: Norte.
Provedor de dados: 14
O Prosa Rural desta semana traz diversas dicas e técnicas para o produtor aumentar a produtividade do cultivo de abacaxi, no Norte do País. O pesquisador da Embrapa Acre, Romeu Andrade Neto, explica como fazer uso das técnicas de irrigação durante o período de seca e de indução floral das plantas para viabilizar a produção contínua de frutos. O ouvinte vai saber ainda como é importante trabalhar com cultivares registradas para a região, como por exemplo a BRS RBO - a cultivar de abacaxizeiro desenvolvida pela Embrapa Acre e parceiros, também conhecida pelo nome de Rio Branco.
Tipo: Gravações de som
Palavras-chave: Indução floral; Abacaxi; Irrigação; Produtividade; Produtor; Seca.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121509

PREVENÇÃO e manejo do verme acantocéfalo no tambaqui: programa 12: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a prevenção e o manejo do verme acantocéfalo no tambaqui. O pesquisador Sandro Loris, da Embrapa Roraima, traz uma série de Boas Práticas, que envolvem a procedência dos alevinos e reprodutores, o monitoramento da qualidade da água, a desinfecção dos utensílios, o comportamento dos peixes e muito mais. Tudo, para o piscicultor não ser vencido pelo parasita acantocéfalo, que não faz mal aos seres humanos, mas causa grandes prejuízos aos criadores de tambaqui.
Tipo: Gravações de som
Palavras-chave: Verme acantocéfalo; Alevino; Desinfecção; Peixe; Piscicultura; Qualidade da Água; Reprodutor; Tambaqui.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121508

Experimentos cooperativos de controle biológico de Sclerotinia sclerotiorum na cultura da soja: resultados sumarizados da safra 2019/2020.
Provedor de dados: 14
Autores: MEYER, M. C.; CAMPOS, H. D.; GODOY, C. V.; UTIAMADA, C. M.; OLIVEIRA, M. C. N. de; NUNES JUNIOR, J.; LOBO JUNIOR, M.; JACCOUD FILHO, D. de S.; VENANCIO, W. S.; MEDEIROS, F. H. V. de; JULIATTI, F. C.; CARNEIRO, L. C.; BRUSTOLIN, R.
Tipo: Folhetos
Palavras-chave: Controle Biológico; Doença de Planta; Doença Fúngica; Mofo Branco; Soja; Fungal diseases of plants; Soybeans.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125425

Diagnóstico de tuberculose bovina: avanços na identificação de Mycobacterium bovis por espectrometria de massas MALDI-TOF.
Provedor de dados: 14
Autores: BACANELLI, G. M.; OLARTE, L. C.; LEGUIZAMON, G. O. de C.; SILVA, M. R.; RODIGUES, R. A.; PASQUATTI, T. N.; CARNEIRO, P. A.; ETGES, R. N.; ARAUJO, F. R.; VERBISCK, N. V.
Tipo: Folhetos
Palavras-chave: Espectrometria de massa; Mycobacterium tuberculosis.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124539

Prospecção em polo moveleiro da Região Metropolitana de Goiânia.
Provedor de dados: 14
Autores: ARAÚJO, C. A.; REIS, C. F.; MOREIRA, J. M. M. A. P.; SANTOS, A. M.; OLIVEIRA, V. L. E. de.
Em decorrência da considerável concentração de empresas fabricantes de móveis na Região Metropolitana de Goiânia e da grande carência de informações sobre esse segmento, foi conduzido um levantamento por amostragem de forma a prospectar informações mais aprofundadas sobre essas empresas. Essa prospecção foi realizada por meio de uma parceria estabelecida entre o Serviço Brasileiro de Apoio às Micro e Pequenas Empresas do Estado de Goiás (Sebrae-GO) (Projeto ?Goiás Sustentabilidade Agroflorestal?), o Sindicato das Indústrias de Móveis e Artefatos de Madeira do Estado de Goiás (SindMóveisGO) e a Empresa Brasileira de Pesquisa Agropecuária (Embrapa Florestas). Essa parceria visa gerar informações técnicas que possam auxiliar na organização e no...
Tipo: Folhetos
Palavras-chave: Cadeia moveleira; Indústria madeireira; Indústria moveleira; Móveis; Produto Florestal; Pequena Empresa; Mercado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125483

BAG 'Flor da Paixão': fotodocumentação e caracterização morfológica das principais espécies, híbridos e cultivares.
Provedor de dados: 14
Autores: OLIVEIRA, J. da S.; FALEIRO, F. G.; JUNQUEIRA, N. T. V.
Tipo: Parte de livro
Palavras-chave: Fotodocumentação; Ilustração; Taxonomia; Morfologia Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124046

Uso de câmeras térmicas embarcadas em aeronaves remotamente pilotadas, visando à fenotipagem de plantas.
Provedor de dados: 14
Autores: SOUSA, C. A. F. de; ANDRADE JUNIOR, A. S. de; BASTOS, E. A.; CASARI, R. A. das C. N.; KOBAYASHI, A. K.; MOLINARI, H. B. C.; SOUZA JUNIOR, M. T.; SANTOS, T. T.
Medição de temperatura por sensoriamento remoto; Configurações requeridas pela câmera térmica para a captura de imagens; Foco; Emissividade (&amp;#603;) do objeto-alvo; Refletividade (&amp;#961;); Transmissividade (&amp;#428;) da atmosfera; Resolução espacial da imagem térmica; Embarque de câmeras térmicas em RPAs; Horário do dia para a captura de imagens térmicas em plantas; Processamento de imagens térmicas para extração de temperatura do objeto-alvo; Índices gerados para avaliação das plantas a partir da temperatura da copa.
Tipo: Folhetos
Palavras-chave: Fenotipagem; Termografia; Planta; Sensoriamento Remoto; Thermography; Remote sensing.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128587

ANUÁRIO leite 2020: leite de vacas felizes.
Provedor de dados: 14
Com alta qualidade, o leite produzido no sistema compost barn é resultado de ambiente confortável, limpo e seco, compartilhado entre rebanho e mão de obra. É o que a pesquisa começa a provar. Fazer vacas e pessoas felizes! Sim, a denominação da proposta, que pode parecer um tanto pretensiosa, vem de um grupo de pesquisadores da Embrapa Gado de Leite, que decidiu este ano chancelar o sistema de produção compost barn. A recente e cada vez mais disseminada opção de criação de vacas leiteiras ganhou um espaço reservado no campo experimental de Coronel Pacheco-MG, onde técnicos e produtores já podem conferir e ajustar o que sabem sobre diferenças e semelhanças dos conceitos que vêm sendo aplicados por aqui, muitas vezes livremente inspirados nas fazendas...
Tipo: Livros
Palavras-chave: Leite no Brasil e no mundo; Oferta e demanda do leite; Preços do leite; Produtividade leiteira; Compost barn; Biosseguridade; Bem estar animal; Sanidade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124722

COMO fazer adubo orgânico Bokashi: programa 35: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana apresenta o composto Bokashi ? um adubo orgânico, de origem japonesa, que atua tanto no fornecimento de nutrientes para as plantas quanto como condicionador biológico. O pesquisador José Guilherme Marinho Guerra, da Embrapa Agrobiologia, explica por que o Bokashi é tão eficiente. O produtor vai ser informado também sobre a possibilidade de preparação deste fertilizante na propriedade ou, em conjunto, por meio de associações ou cooperativas.
Tipo: Gravações de som
Palavras-chave: Adubo Orgânico; Nutriente; Planta; Fertilizante; Condicionador do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124745

Guia para uso do fogo no manejo de pastagem em nível de fazenda no Pantanal
Provedor de dados: 14
Autores: SANTOS, S. A.; CARDOSO, E. L.; SORIANO, B. M. A.; POTT, A.; PEREIRA, A. de M. M.
Esta publicação visa auxiliar o produtor na definição e na implantação de um plano de manejo das pastagens e das paisagens em nível de propriedade com o uso do fogo que concilia produção, conservação e onde contribuir para a redução de incêndios.
Tipo: Folhetos
Palavras-chave: Pastagem; Fogo; Pastures; Forest fire management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129220

Plantas Alimentícias Não Convencionais &amp; Saúde.
Provedor de dados: 14
Autores: PASCHOAL, V.; LOBATO, E.; MADEIRA, N. R.
Esta cartilha apresenta as principais PANC que podemos incluir em nossa alimentação, ressaltando seus benefícios à saúde e informações sobre as técnicas de cultivo e como usá-las na sua cozinha!
Tipo: Folhetos
Palavras-chave: PANC; Projeto Bahia produtiva; Segurança Alimentar; Saúde; Nutrição.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132694

Diversidade genética entre acessos do Banco Ativo de Germoplasma de Milho com grãos brancos dos tipos duro, semiduro e semidentado.
Provedor de dados: 14
Autores: TEIXEIRA, F. F.; JESUS, L. N. de; BUENO, F. C.
O Banco Ativo de Germoplasma de Milho é preservado na Embrapa Milho e Sorgo há mais de 45 anos. Essa coleção é uma rica representação da diversidade genética de um dos cultivos mais presentes nas lavouras do Brasil. O banco de germoplasma de milho contém cerca de 4.000 acessos que foram em sua maioria coletados no Brasil, e também inclui variedades de milho comerciais antigas e acessos introduzidos no País. A manutenção desta coleção visa não somente a preservação da agrobiodiversidade, mas também a constituição de um acervo de material genético disponível para atividades de pesquisa, que visa gerar novos conhecimentos e obter novos produtos, em especial cultivares melhoradas. Para tanto, é preciso conhecer os atributos dos acessos do banco de germoplasma,...
Tipo: Livros
Palavras-chave: Melhoramento Genético Vegetal; Genética Vegetal; Zea Mays; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124824

Hortaliça não é só salada. Hortaliças folhosas.
Provedor de dados: 14
Autores: LANA, M. M.
Ponha esse verde no seu prato. Sabor, textura e cor. Saúde. Versatilidade. Economia. Saiba mais. Referencia.
Tipo: Folders
Palavras-chave: Estímulo ao consumo; Hortaliça Folhosa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126596

PORTFÓLIO de sanidade animal: saúde animal e segurança dos alimentos são estratégias para a produção de carnes, leite e ovos.
Provedor de dados: 14
Ilustração: iStock; Projeto gráfico: Roberta Barbosa e Bruno Imbroisi; Diagramação e adaptação do projeto gráfico: Rodrigo Alva. Obra em parceria com a Embrapa Gado de Leite e Secretaria de Pesquisa e Desenvolvimento/Embrapa Sede.
Tipo: Folhetos
Palavras-chave: Empresa Brasileira de Pesquisa Agropecuária; Sustentabilidade; Segurança dos alimentos de origem animal; Macroprocesso de inovação; Instituição de Pesquisa; Pesquisa Pecuária; Planejamento de Pesquisa; Inovação; Desenvolvimento Sustentável; Tecnologia de Alimento; Transmissão de Doença; Alimento Animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130710

Priorização de municípios para ações de conservação do solo e da água: componentes socioeconômico e ambiental.
Provedor de dados: 14
Autores: FIDALGO, E. C. C.; MARTINS, A. L. da S.; SCHULER, A. E.; PRADO, R. B.; MONTEIRO, J. M. G.; OLIVEIRA, A. P. de; PEDREIRA, B. da C. C. G.; DART, R. de O.
O presente trabalho foi desenvolvido com o objetivo de identificar e mapear municípios em uma escala de priorização com base em indicadores socioeconômicos e ambientais relacionados à gestão do solo e da água no meio rural. O trabalho visa produzir informações técnicas a fim de subsidiar a seleção de municípios para implementar ações de conservação do solo e da água. Para tal, optou-se por buscar um conjunto mínimo de indicadores capaz de evidenciar a distribuição espacial de fatores condicionantes de natureza socioeconômica e ambiental e refletir situações relevantes do território a serem consideradas na priorização de municípios brasileiros. Após levantamento de indicadores usados em programas de conservação do solo e da água desenvolvidos no Brasil e...
Tipo: Folhetos
Palavras-chave: Estabelecimentos agropecuários; Balanço hídrico quantitativo; Apoio à tomada de decisão; Recurso Hídrico; Gestão; Microbacia; Agricultura Familiar; Indicador Econômico; Indicador Social; Renda; Family farms; Income; Water balance; Decision making.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127559

Morada Nova.
Provedor de dados: 14
Autores: LIMA, L. D. de; LANDIM, A. V.; ORTIZ VEGA, W. H.
Tipo: Parte de livro
Palavras-chave: Raça localmente adaptada; Ovino de corte; Produção Animal; Carne.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127819

O Comércio Internacional do Agronegócio do Leite.
Provedor de dados: 14
Autores: LEITE, J. L. B.
O Brasil tem grande potencial para se tornar grande exportador líquido de lácteos. Ele deve focar no aumento da produtividade total dos fatores de produção e na redução dos custos, maior qualidade da matéria prima e dos produtos lácteos, maior eficiência industrial, inovação de produtos e processos.
Tipo: Folhetos
Palavras-chave: Mercado mundial de lácteos; Políticas comerciais.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126796

Modelos para sistematização nas terras baixas do Rio Grande do Sul.
Provedor de dados: 14
Autores: PARFITT, J. M. B.; BUENO, M. V.; BERGMANN, H. M.; VEBER, P. M.; TIMM, P. DE A.; CAMPOS, A. S. DE.
Este documento é o resultado do esforço da Embrapa Clima Temperado em atualizar os conhecimentos com relação à aplicação da geotecnologia na sistematização das áreas de terras baixas dos Estados do Sul do País.
Tipo: Folhetos
Palavras-chave: Solo Hidromórfico; Agricultura de Precisão; Água; Arroz; Drenagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127754

Amazônia: realidade e soluções.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://opiniao.estadao.com.br/noticias/espaco-aberto,amazonia-realidade-e-solucoes,70003408610?utm_source=estadao:whatsapp&amp;utm_medium=link; http://www.aroldomura.com.br/?p=42484
Tipo: Artigo na mídia
Palavras-chave: Floresta; Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125124

Caracterização e identificação de Burkholderia mallei por espectrometria de massas MALDI-TOF: resultados de um estudo piloto.
Provedor de dados: 14
Autores: VERBISCK, N. V.; ARAUJO, F. R.; GASPAR, E. B.; FONSECA JÚNIOR, A. A.; MOTA, R. A.; SILVA, K. P. C. da; ALVARENGA, L. C. O.; LIMA, D. A. R.
Tipo: Folhetos
Palavras-chave: Mormo; Eqüino.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127140

Betacaroteno: processo de microencapsulação de betacaroteno.
Provedor de dados: 14
Autores: MENDONCA, S.
Tipo: Folders
Palavras-chave: Quimíca de renováveis; Microencapsulação; Betacaroteno.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123213

Insetos nocivos e métodos agroecológicos de controle na agricultura Kaxinawá de Nova Olinda, Feijó, AC.
Provedor de dados: 14
Autores: SANTOS, R. S.
Em uma agricultura de subsistência, como a praticada pelos Kaxinawá de Nova Olinda, o ataque de pragas se torna extremamente prejudicial, comprometendo a qualidade e quantidade do alimento produzido. Dessa forma, os resultados apresentados nesta publicação referem-se a uma diagnose da entomofauna associada aos principais cultivos agrícolas na TIKNO, com a identificação dos principais insetos-praga. A partir dessa diagnose, foram realizadas proposições de técnicas agroecológicas, a fim de que possam combater esses organismos danosos, contribuindo assim para garantir a segurança alimentar da comunidade. Esta publicação está de acordo com os Objetivos de Desenvolvimento Sustentável 11 (Cidades e Comunidades Sustentáveis) e 15 (Vida Terrestre). Os Objetivos de...
Tipo: Folhetos
Palavras-chave: Povos indígenas; Plagas de plantas; Control biológico; Agricultura tradicional; Pueblos indígenas; Terra Indígena Kaxinawá de Nova Olinda (TIKNO); Feijó (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Selo ODS 15; Selo ODS 11; Praga de Planta; Inseto; Controle Biológico; Plant pests; Insects; Biological control; Traditional farming; Indigenous peoples.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126088

SISTEMA de produção de mudas de mandioquinha-salsa: programa 5: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o sistema de produção de mandioquinha-salsa, também chamada, conforme a região, de batata-baroa, batata-fiuza ou batata-salsa. O pesquisador Nuno Madeira, da Embrapa Hortaliças, orienta o agricultor sobre como proceder para obter uma lavoura de mandioquinha produtiva e uniforme, a partir da utilização de mudas de qualidade. O programa também apresenta as diferenças entre os campos para produção de raízes e os campos para produção de mudas.
Tipo: Gravações de som
Palavras-chave: Batata baroa; Batata fiuza; Mandioquinha Salsa; Agricultor; Muda.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120580

Criações extensivas de cavalos na região do pantanal: mortalidade aguda por cólica.
Provedor de dados: 14
Autores: SANTOS, C. E. P. dos; JULIANO, R. S.
Em geral, a síndrome cólica ocorre mais frequentemente em equinos estabulados, alimentados com ração e com pouca oferta de alimento volumoso (fenos ou pastagem verde). Em criações extensivas, a alimentação desses animais é baseada na ingestão de fibras vegetais e quadros de cólica embora ocorram, são incomuns. Entretanto, uma enfermidade que acomete equinos e muares tem chamado atenção pela manifestação de quadros agudos de cólica envolvendo animais a campo, com a ocorrência de casos fatais se não tratados de forma precoce. O quadro clínico caracteriza-se por dilatação gástrica, distensão intestinal e paralização dos movimentos intestinais. É mais comum em equídeos adultos, sendo que os muares são aparentemente menos sensíveis do que os equinos, com a...
Tipo: Artigo na mídia
Palavras-chave: Cavalo; Cólica; Doença Animal; Horses; Animal diseases; Colic.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/784024

Manual de produção de mudas clonais de erva-mate.
Provedor de dados: 14
Autores: WENDLING, I.; SANTAROSA, E.; PENTEADO JUNIOR, J.; AUER, C. G.; PENTEADO, S. do R. C.; QUEIROZ, D. L. de; SANTOS, A. F. dos.
Entre as atividades relacionadas ao cultivo da erva-mate (Ilex paraguariensis St. Hil.), a produção de mudas é uma das etapas mais importantes, pois o êxito da implantação e produção dos ervais está diretamente relacionado à qualidade das mudas. A necessidade do desenvolvimento de sistemas de produção agropecuários inovadores, produzindo mudas de melhor qualidade é um desafio constante para os técnicos, exigindo a capacitação e atualização dos profissionais que atuam nesta atividade. No Brasil, especialmente na última década, os sistemas de produção de mudas de erva-mate têm apresentado importantes avanços, no que diz respeito às técnicas de produção para cada uma das fases de desenvolvimento no viveiro, desde o planejamento, estruturas, métodos de...
Tipo: Folhetos
Palavras-chave: Clone.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123804

Challenges for Embrapa.
Provedor de dados: 14
Autores: DINIZ, F. H.; STUCHI, J. F.
Tipo: Parte de livro
Palavras-chave: Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128289

New applications of low field NMR in soil science.
Provedor de dados: 14
Autores: NOVOTNY, E. H.; GALVOSAS, P.
Despite the wide application of low field NMR in different fields, from petrophysics to food science and industry, its use in Soil Science is still inconspicuous. To demonstrate opportunities for low field NMR in this area we will present a few examples of so far unpublished new applications of this powerful and more affordable technique in Soil Science
Tipo: Artigo na mídia
Palavras-chave: NMR; Espectroscopia por ressonância magnética nuclear; Solo; Pedologia; Soil science; Nuclear magnetic resonance spectroscopy.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127172

As vivências da família Sousa Lopes na construção da diversidade: Pau Ferrado dos Procópio, Lago do Junco, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122853

Gargalos competitivos da cadeia produtiva da carne bovina brasileira.
Provedor de dados: 14
Autores: PENZ, D.; ROLT, C. R. de; MALAFAIA, G. C.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125603

Desempenho de um secador solar na secagem de resíduos da agroindústria de palmito pupunha.
Provedor de dados: 14
Autores: ARANTES, M. S. T.; LIMA, E. A. de.
Um método de secagem amplamente empregado envolve a utilização de energia solar. São dois tipos de tecnologias empregados para este tipo de secagem: a secagem ao ar livre e o secador solar.
Tipo: Folhetos
Palavras-chave: Resíduo agroindustrial; Secador Solar; Pupunha; Resíduo Orgânico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127329

Hortaliça não é só salada. Gordura no sangue.
Provedor de dados: 14
Autores: FRANZ, R. S.; LANA, M. M.
Quais são as alterações dos teores de gorduras (lipídeos) no sangue ? Dislipidemia e dieta. Hortaliças podem ser consumidas por pessoas com dislipidemia? Trocas inteligentes para pessoas com dislipidemia.
Tipo: Folders
Palavras-chave: Saúde; Hortaliça.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129110

Raleio mecânico de flores e frutos de diferentes genótipos de pessegueiros.
Provedor de dados: 14
Autores: BARRETO, C. F.; NAVROSKI, R.; BENATI, J. A.; PEREIRA, J. F. M.; ANTUNES, L. E. C.
O raleio em pessegueiro tem como objetivo retirar o número excessivo de frutos da planta e eliminar aqueles danificados e/ou doentes, mas sem prejudicar a produtividade do pomar. Na produção de pêssegos, o raleio é realizado de forma manual para retirada dos frutos em excesso, necessitando ser executado em um curto período de tempo e com mão de obra especializada, o que eleva os custos de produção. Nesse sentido, o raleio mecânico pode ser uma alternativa ao raleio manual de frutos. Assim, o objetivo deste trabalho foi avaliar a eficiência do raleio mecânico de flores e frutos de pessegueiros com dois tipos de equipamentos. Foram realizados testes com os equipamentos derriçadeira e Carpa Electro®, mantendo-se o raleio manual como testemunha. No primeiro...
Tipo: Folhetos
Palavras-chave: Fruticultura; Raleio; Pêssego; Pratica Cultural.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133081

Total de chuvas em março foi o menor dos últimos 26 anos.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
O total de chuvas em março foi igual a 51 mm, que corresponde a 32% da média mensal. Esse foi o menor valor já registrado nesse mês desde 1995, quando teve início a coleta de dados meteorológicos na Estação da Embrapa, em Jales.
Tipo: Artigo na mídia
Palavras-chave: Chuva; Clima; Clima Tropical; Climatologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123751

Produção leiteira de búfalos.
Provedor de dados: 14
Autores: CAVALI, J.; PEREIRA, R. G. de A.
O búfalo é um animal com aptidão para produção de carne e leite, além de ser utilizado como força de trabalho no campo. Em razão de sua elevada rusticidade e capacidade de adaptação em solos de baixa fertilidade e terrenos alagadiços, bem como sua capacidade de converter alimentos de baixa qualidade em proteína de qualidade, esses animais têm ocupado regiões que são consideradas inadequadas para a criação de bovinos.
Tipo: Parte de livro
Palavras-chave: Murrah; Jafarabadi; Mediterrâneo; Raças leiteiras; Búfalo; Bubalus Bubalis; Produção Leiteira; Buffalo milk; Milk production; Dairy breeds; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126184

Umbu-cajazeira: descrição e técnicas de cultivo.
Provedor de dados: 14
Autores: SOUZA, F. X. de; PORTO FILHO, F. de Q.; MENDES, N. V. B.
Tipo: Livros
Palavras-chave: Umbu-cajazeira; Técnica de cultivo; Agronomia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128438

Atuais e potenciais impactos do coronavírus (Covid-19) na caprinocultura e ovinocultura.
Provedor de dados: 14
Autores: LUCENA, C. C. de; HOLANDA FILHO, Z. F.; BOMFIM, M. A. D.
Tipo: Artigo na mídia
Palavras-chave: Caprinocultura; Ovinocultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121601

A Carta de Caminha contribuiu para o início de nossa agropecuária.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000988480/a-carta-de-caminha-contribuiu-para-o-inicio-de-nossa-agropecuaria.html.
Tipo: Artigo na mídia
Palavras-chave: Agricultura; Historia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123169

Preços de cortes de carne bovina para alimentação em casa são reduzidos.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Carne bovina; Preço.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128696

Eficiência de fungicidas no controle da mancha branca do milho: segunda safra 2020.
Provedor de dados: 14
Tipo: Folhetos
Palavras-chave: Doença foliar; Zea Mays; Doença de Planta; Mancha Branca.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1141331

Teor de carotenoides totais e compostos cianogênicos em snack de mandioca.
Provedor de dados: 14
Autores: OLIVEIRA, L. A. de; REIS, R. C.; SANTANA, H. M.; JESUS, J. L. de; SANTOS, V. da S.; CARVALHO, J. L. V. de.
Tipo: Folhetos
Palavras-chave: Mandioca; Composto Cianogênico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124651

Fatores associados ao declínio e morte de plantas de videira identificados em áreas infestadas pela pérola-da-terra no Rio Grande do Sul.
Provedor de dados: 14
Autores: BOTTON, M.; NONDILLO, A.; GOMES, C. B.; MELO, G. W. B. de; GARRIDO, L. da R.; ALMANÇA, M. A. K.
Historicamente, o declínio e a morte de plantas de videira foi associado somente à presença da cochonilha pérola-da-terra. Nesta publicação são apresentadas informações sobre fatores associados ao declínio e morte de plantas de videira em áreas com histórico de infestação da cochonilha em vinhedos no Rio Grande do Sul. Merece destaque a ocorrência de fungos de raízes e do tronco da videira, nematóides fitopatogênicos e os teores de concentração de cobre no solo.
Tipo: Folhetos
Palavras-chave: Videira; Pérola-da-terra; Morte de videiras; Declínio; Fungos de raízes; Fungos de tronco; Fitopatogênicos; Morte de plantas; Perola da Terra; Fungo; Nematóide; Doença de Planta; Cobre; Cochonilha.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126616

Nota de Conjuntura: Leite e Derivados - Fevereiro/2020.
Provedor de dados: 14
Autores: CARVALHO, G. R.; ROCHA, D. T. da; DINIZ, F. H.; LEITE, J. L. B.; SIQUEIRA, K. B.; STOCK, L. A.; HOTT, M. C.; SIQUEIRA, P.; CHAVES, D.
No Brasil, a oferta de leite cresceu pouco acima dos 2% no ano passado. Mesmo considerando que o volume de vendas registrou tímido crescimento, a indústria de laticínios fechou 2019 com estoques baixos. Na balança comercial, o volume de importações de produtos lácteos registrou queda de 26% em janeiro de 2020, enquanto as exportações apresentaram pequeno crescimento no mês. Para o produtor, o preço líquido do leite subiu 1% de dezembro/2019 para janeiro/2020, refletindo o cenário de oferta mais limitada. Já no mercado atacadista de derivados houve aumento para o queijo muçarela e leite em pó e ligeira queda para o UHT. Ao longo dos próximos meses, o produtor de leite precisará dar uma atenção especial para os custos de produção, visto que milho e soja...
Tipo: Artigo na mídia
Palavras-chave: Conjuntura; Derivados; Lacteos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120354

Monitoramento de desembarques pesqueiros na Bacia Tocantins-Araguaia: Santa Cruz, São Geraldo do Araguaia, PA.
Provedor de dados: 14
Este boletim avalia as pescarias realizada pelos pescadores(as) da comunidade tradicional de Santa Cruz, localizada na Área de Proteção Ambiental de São Geraldo do Araguaia - PA.
Tipo: Folhetos
Palavras-chave: Santa Cruz-PA; Cadeia Produtiva; Desembarque; Pesca Artesanal; Pescador; Projeto Pesqueiro; Proteção Ambiental; Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125437

Sem isolamento horizontal, cresce o PIB agrícola.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000992045/sem-isolamento-horizontal-cresce-o-pib-agricola-.html.
Tipo: Artigo na mídia
Palavras-chave: Agronegócio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123595

ABELHAS nativas: opção de renda para agricultura familiar na Amazônia: programa 21: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a meliponicultura, que é a criação de abelhas nativas sem ferrão, também chamadas abelhas indígenas. A pesquisadora Cristiane Krug, da Embrapa Amazônia Ocidental, com atuação no âmbito do projeto Bem Diverso, traz orientações importantes tanto para quem já é meliponicultor, quanto para quem pretende se iniciar nessa atividade. Com participação de profissionais de diversas instituições, o programa dá ênfase ao planejamento e à adoção de técnicas adequadas de manejo de modo a contribuir para a geração de renda, a oferta de alimentos e a conservação da floresta nativa.
Tipo: Gravações de som
Palavras-chave: Meliponicultura; Fundo-amazônia; Abelha Indígena; Agricultura Familiar; Floresta Nativa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122772

Análise de trilha sobre características da soja cultivada em dois tipos de solos e inoculação com Bradyrhizobium e Azospirillum.
Provedor de dados: 14
Autores: ABREU, H. K. A. de; FACHINELLI, R.; CECCON, G.
Tipo: Resumo em anais e proceedings
Palavras-chave: Análise do Solo; Melhoramento Genético Vegetal; Soja; Inoculação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126570

A prática do uso e do manuseio de herbicidas no Estado de Minas Gerais.
Provedor de dados: 14
Autores: KARAM, D.; CUSTÓDIO, I. G.; SILVA, A. F. da; LALAU, V. A. S.
O monitoramento ou acompanhamento do manuseio dos agrotóxicos é um procedimento relevante para o entendimento do que ocorre na propriedade rural quanto ao uso desses agentes químicos, e consequentemente permite orientar tanto as boas práticas agronômicas quanto dar suporte a políticas públicas que colaborem com o menor impacto possível dessa atividade, na zona rural e no ambiente urbano com os consumidores finais. Os agrotóxicos mais comercializados globalmente são os herbicidas, os quais se prestam para controlar plantas daninhas nos sistemas agropecuários produtivos. Portanto, o entendimento da manipulação, dose e aplicação desses produtos contribuem para o direcionamento de melhorias para redução de seu impacto social, ambiental e econômico. Esse...
Tipo: Folhetos
Palavras-chave: Herbicida; Controle Químico; Agrotóxico; Defensivo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126617

Proceedings...
Provedor de dados: 14
Autores: INTERNATIONAL STABLE WORKSHOP, 2., 2019, Campo Grande, MS.
The stable fly (Stomoxys calcitrans) is an economically important blood-sucking pest impacting animal production and welfare, as well as human beings, in countries from distinct continents. In recent decades, population explosions of this fly associated with agricultural production systems led to alarming infestations on both dairies and pastured cattle. Stable fly outbreaks are ultimately caused by the availability of suitable decaying vegetative material to support the development of massive numbers of immatures. This situation is becoming more frequent due to the industrialization of agriculture and the need for increasing food production around the world. The high intensity and extended duration of stable fly infestations have caused serious impacts on...
Tipo: Anais e Proceedings de eventos
Palavras-chave: Gado de Corte; Gado Leiteiro; Mosca dos Estábulos; Pecuária; Praga de Animal; Stomoxys Calcitrans.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122161

Onde está a produção mundial de carne bovina?
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125600

Abelhas, prazer em tê-las.
Provedor de dados: 14
Autores: PEREIRA, F. de M.; LOPES, M. T. do R.; SOUZA, B. de A.
Você sabe que as abelhas são insetos? Os insetos são os seres mais adaptados do planeta e considerados a forma de vida dominante na Terra! Isso porque existem mais de setecentas mil espécies de insetos. São tantos e com formas de corpo tão diferentes que às vezes é difícil reconhecê-los. Mas todos eles têm algumas características em comum. Você quer saber o que abelha, borboleta, gafanhoto, pulga, formiga e mosca têm em comum? Todos têm um par de antena, três pares de pernas e um esqueleto externo, chamado de exoesqueleto. Existem outras semelhanças e várias diferenças. Alguns insetos, como o mosquito da dengue, causam doenças e são nocivos. Mas a maioria tem um importante papel na vida humana e de outros animais. Entre os insetos importantes, as abelhas...
Tipo: Folhetos
Palavras-chave: Abelha; Inseto; Meio Ambiente; Honey bees; Insects; Environment.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124768

PRODUÇÃO de pequenas frutas de clima temperado: programa 47: SUL.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a produção de pequenas frutas de clima temperado, as chamadas berries, como a framboesa, a amora e o mirtilo. As características desses pomares são apresentadas a partir da perspectiva da agricultura familiar, pela Empresa de Pesquisa Agropecuária de Minas Gerais - a EPAMIG, parceira da Embrapa. O pesquisador Emerson Gonçalves, da EPAMIG, traz detalhes sobre esses cultivos, tais como as exigências climáticas e hídricas, e os cuidados necessários na pós-colheita.
Tipo: Gravações de som
Palavras-chave: Agricultura Familiar; Amora; Framboesa; Fruta de Clima Temperado; Mirtilo; Pós-Colheita.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127340

Cultivar BRS 4107 - nova variedade de milho para o Amazonas.
Provedor de dados: 14
Autores: OLIVEIRA, I. J. de; BARRETO, J. F.; FONTES, J. R. A.; GUIMARAES, P. E. de O.; GUIMARAES, L. J. M.
Características da variedade BRS 4107. Ambientes de avaliação. Desempenho produtivo. Onde adquirir.
Tipo: Folhetos
Palavras-chave: Milho; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128802

Boletim Agroclimático - Abril/2020.
Provedor de dados: 14
Autores: NACHTIGALL, G. R.; HAWERROTH, F. J.
Reflexos das condições climáticas na resposta produtiva da macieira no ciclo 2019/2020. Dada a severidade do estresse hídrico observado no período, parte dos frutos não cresceram suficientemente para atingir o calibre comercial e, os frutos que atingiram o limiar de calibre comercial, apresentaram massa média dos frutos inferior à observada nos últimos anos. O somatório dessas condições resultou em significativa redução do volume e valor comercial associado devido ao menor calibre. Mesmo em pomares com reduzida carga de frutos, o calibre foi abaixo do observado nos últimos ciclos.
Tipo: Folhetos
Palavras-chave: Boletim agroclimático; Agroclimático; Boletim; Bacccs; Boletim agroclimático de Campos de Cima da Serra (Bacccs); Clima; Temperatura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122151

Anais...
Provedor de dados: 14
Autores: JORNADA DE INICIAÇÃO CIENTIFICA DA EMBRAPA SEMIÁRIDO, 15., 2020, Petrolina.
A publicação dos Anais da XV Jices apresenta a diversidade de questões para as quais a Agenda de Pesquisa, Desenvolvimento &amp; Inovação (PD&amp;I) da Embrapa Semiárido tenta buscar soluções para atender demandas de agricultores, empreendedores do setor privado e gestores públicos.
Tipo: Anais e Proceedings de eventos
Palavras-chave: Iniciação científica; Pesquisa científica; Pesquisa Agrícola; Agricultura; Pecuária; Tecnologia; Agricultural research; Cooperative research; Research and development; Research projects; Research programs.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128456

Variedade BRS3280BtRR: a variedade de cana-de-açúcar que combina qualidade e eficiência no manejo.
Provedor de dados: 14
Variedade desenvolvida em parceria entre a Embrapa e a startup PangeiaBiotech.
Tipo: Folders
Palavras-chave: Insetos-praga; Broca-da-cana; Broca-gigante; Glifosato; Cana de Açúcar; Inovação; Engenharia Genética; Resistência; Praga de Planta; Erva Daninha.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126936

As chuvas voltaram em maio de 2020 na região da Grande Dourados.
Provedor de dados: 14
Autores: FIETZ, C. R.; COMUNELLO, E.; FLUMIGNAN, D. L.
Tipo: Folhetos
Palavras-chave: Agrometeorologia; Brasil; Mato Grosso do Sul; Agricultura; Clima; Agrometeorology; Climate; Meteorology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123166

Aspectos fitopatológicos, genéticos e moleculares na resistência genética à ferrugem-da-folha em trigo.
Provedor de dados: 14
Autores: CECCON, C. C.; CASASSOLA, A.; BRAMMER, S. P.
A ferrugem-da-folha no trigo tem afetado, com frequência, a produtividade e a competitividade dessa importante cultura agrícola, principalmente em anos propícios ao desenvolvimento da doença. A identificação e caracterização de genes de defesa da planta são essenciais para a maior compreensão da resposta do hospedeiro ao ataque pelo patógeno. Isso porque a resistência ampla e durável à ferrugem-da-folha, tão almejada pelos melhoristas e produtores de trigo, é complexa, pois os genes envolvidos apresentam diferentes modos de ação. Avançar no entendimento dos mecanismos de resistência genética do trigo, por meio de estratégias biotecnológicas, representa um passo importante da pesquisa científica. Nesse contexto, a presente publicação aborda, não somente os...
Tipo: Folhetos
Palavras-chave: Ferrugem-da-folha; Cultivar Toropi; Aspectos fitopatológicos; Trigo; Resistência Genética; Ferrugem; Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124692

Fevereiro de 2020 foi muito quente e teve chuvas frequentes na Região Sul de Mato Grosso do Sul.
Provedor de dados: 14
Autores: FIETZ, C. R.; COMUNELLO, E.; FLUMIGNAN, D. L.
Tipo: Folhetos
Palavras-chave: Agrometeorologia; Meteorologia; Clima; Agrometeorology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121528

Banco ativo de germoplasma de pereira (Pyrus spp.) : Epagri e Embrapa Uva e Vinho.
Provedor de dados: 14
Autores: FAORO, I. D.; OLIVEIRA, P. R. D. de.
O gênero Pyrus inclui 22 espécies, além de seis híbridos interespecíficos naturais. Dentre essas, P. communis, P. pyrifolia e P. bretschneideri são as mais cultivadas para a produção de peras para o consumo in natura ou envasadas.
Tipo: Artigo de periódico
Palavras-chave: Pereira; BAG-Pereira; Germoplasma; Banco de Germoplasma; Pêra.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127918

Propagação por estaquia de amoreira-preta cultivar "Tupy" em substratos orgânicos.
Provedor de dados: 14
Autores: SILVA, T. F.; ANDRADE, H. A. F.; OLIVEIRA, A. R. F.; SANTOS, L. R. dos; LOPES, P. R. C.; OLIVEIRA, I. V. de M.; LOPES, K. A. do L.; SILVA-MATOS, R. R. S. da.
Com o intuito de reduzir custo na produção de mudas de amoreira-preta, a presente pesquisa objetivou avaliar diferentes proporções de casca de arroz carbonizada e caule decomposto de babaçu na composição de substratos para propagação vegetativa por estaquia de amoreira cultivar ?Tupy?. O experimento foi desenvolvido em estufa com controle a 75% de luminosidade, no Centro de Ciências Agrárias e Ambientais, da Universidade Federal do Maranhão. Adotou-se o delineamento inteiramente casualizados, com sete tratamentos, nos quais os substratos foram compostos a base casca de arroz carbonizada (CAC) e de caule decomposto de babaçu (CDB) nas seguintes proporções: T1 100% Solo; T2 - 20% CAC + 80% Solo; T3 - 60% CAC + 40% Solo; T4 - 100% CAC; T5 - 20% CDB + 80%...
Tipo: Parte de livro
Palavras-chave: Propagação por estaquia; Cultivar Tupy; Attalea speciosa Mart; Amora Preta; Propagação Vegetativa; Attalea speciosa; Root systems.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120895

Avaliação de cultivares de trigo no estado de Alagoas.
Provedor de dados: 14
Autores: MORAIS, L. K. de; SANTOS, R. da S.; FRONZA, V.; SCHEEREN, P. L.; MIRANDA, M. Z. de; NORONHA, M. de A.; SILVA, P. de A.
Tipo: Folhetos
Palavras-chave: Trigo; Resistência; Deficiência Hídrica; Água.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129237

Biofábricas melhoram o solo física, química e biologicamente.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000985076/biofabricas-melhoram-o-solo-fisica-quimica-e-biologicamente.html.
Tipo: Artigo na mídia
Palavras-chave: Bioestruturação do solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121513

Memórias do XXV Congresso Mundial da IUFRO, Curitiba, Paraná, Brasil, 29 de setembro a 5 de outubro de 2019.
Provedor de dados: 14
Autores: FREITAS, J. V. de; OLIVEIRA, Y. M. M. de; ABRANTES, M. A.; MATTOS, P. P. de; SCHAITZA, E. G.; PICHELLI, K. R.; AFONSO, S. R.
Realizado pela cooperação entre o SFB e Embrapa, ambas vinculadas ao MAPA, o IUFRO2019 apresentou números impressionantes para um evento internacional sediado pela primeira vez em país da América Latina: 2.725 pessoas de 96 diferentes países, 195 sessões técnicas, um total de 1.648 trabalhos orais e 964 posters, além dos mais de 31 eventos paralelos. O intercâmbio de conhecimento, pesquisas e informações possível no IUFRO2019 representou um ganho inestimável a todos os pesquisadores que tiveram a honra de participar, incluindo os 35 profissionais que representaram o SFB. No Espaço Brasil, área destinada à divulgação das políticas públicas nacionais, apresentamos o programa de concessão florestal, o Cadastro Ambiental Rural, o Inventário Florestal Nacional,...
Tipo: Livros
Palavras-chave: Congresso Florestal; Forest research; Pesquisa Florestal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130806

Desempenho e potencial econômico para o eucalipto em sistemas silvipastoris em Bagé-RS.
Provedor de dados: 14
Autores: TONINI, H.; LUCAS, M. A. K.; PERSKE, R. C. F.
O trabalho foi realizado com o objetivo de avaliar o desempenho de materiais genéticos de eucalipto plantados em diferentes arranjos, quantificar o estoque de multiprodutos florestais e avaliar a viabilidade financeira destes plantios em sistemas silvipastoris na região de Bagé (RS). Os dados foram coletados entre junho de 2018 e agosto de 2019 em 15 Unidades de Referência Tecnológicas implantadas em propriedades de pecuária familiar e no campo experimental da Embrapa em 2013 e 2014. Foram coletados dados de crescimento (diâmetro à altura do peito, altura, volume total e por sortimentos), mortalidade, forma e qualidade do tronco, fitossanidade, danos por animais e ventos e verificada a viabilidade econômica dos plantios com base em um estudo de mercado....
Tipo: Folhetos
Palavras-chave: Agrossilvicultura; Consorciação de Cultura; Silvicultura; Floresta; Integração.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127624

Preparo de óxidos mistos Ni-Mg-Al com metais de terras raras para aplicação na reforma de biogás.
Provedor de dados: 14
Autores: SCHULTZ, E. L.; CORREIA, J. V. N.; SOARES, I. P.
Apresenta metodologia de preparo de óxidos mistos Ni-Mg-Al com metais terras raras.
Tipo: Folhetos
Palavras-chave: Óxidos mistos; Terras raras; Hidrotalcita; Oxido; Catalisador; Biogás; Oxides; Catalysts.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123224

Correção da acidez do solo.
Provedor de dados: 14
Autores: VELOSO, C. A. C.; ARAUJO, S. M. B.; RODRIGUES, J. E. L. F.; SILVA, A. R.
Tipo: Parte de livro
Palavras-chave: Acidez do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127245

ANÁLISE de solos: da coleta à aplicação dos nutrientes: programa 26: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a análise de solo: prática essencial para quem pretende implantar uma lavoura agrícola, pastagem ou plantio florestal. A pesquisadora Maria do Rosário Lobato Rodrigues, da Embrapa Amazônia Ocidental, explica que a análise de solo indica a disponibilidade dos nutrientes no solo, o que permite a correção das deficiências e reposições necessárias, nas quantidades adequadas de acordo com a exigência do cultivo agrícola a ser trabalhado. O programa ensina como fazer a coleta das amostras de solo.
Tipo: Gravações de som
Palavras-chave: Plantio florestal; Cultivo agrícola; Amostra de solo; Análise do Solo; Lavoura; Pastagem Cultivada; Nutriente.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123598

A qualidade da produção tradicional de queijo por Francisca e José Meneses: Serra do Aristóteles, Poção de Pedras, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; GUSMÃO, L. A.; SOUSA, R. C. de.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122839

A pecuária brasileira permanecerá sustentável pós-Covid-19.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Segurança Alimentar; Carne.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125550

Agrotóxicos registrados para a cultura da Videira - Safra 2020/21.
Provedor de dados: 14
Autores: GARRIDO, L. da R.; BOTTON, M.
Apresenta a relação de agrotóxicos químicos e biológicos autorizados para a cultura da videira, a partir da base oficial publicada no site MAPA/Agrofit (Agrofit, 2020), e algumas dicas de Boas Práticas Agrícolas para garantir a qualidade da uva produzida.
Tipo: Folhetos
Palavras-chave: Produtos autorizados; Agrofit; Agroquímicos; Agrotóxicos; Viticultura; Manejo; Uva; Grade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124869

Seleções de limeira ácida Tahiti visando à diversificação de pomares do polo citrícola dos Tabuleiros Costeiros da Bahia e de Sergipe.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; TEODORO, A. V.; CARVALHO, L. M. de; BARROS, I. de; SOARES FILHO, W. dos S.; GIRARDI, E. A.; PASSOS, O. S.
Tipo: Folhetos
Palavras-chave: Limeira ácida; Lima; Fruta Cítrica; Pomar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127528

Francisca e Miguel e a beleza na produção do pacará: Centrinho da Aparecida, Lago do Junco, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; MATOS, F. F. de; SOUSA, R. C. de.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122849

Hortaliça não é só salada. Geladeira.
Provedor de dados: 14
Autores: LANA, M. M.
Geladeira: uma aliada na redução do desperdício. Geladeira: grande aliada, mas não para todas as hortaliças. Prepare o produto que será refrigerado. Quanto tempo dura o produto refrigerado. Vale a pena considerar.
Tipo: Folders
Palavras-chave: Consumo Alimentar; Desperdício; Economia Domestica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129028

Boletim Agrometeorológico: acompanhamento da 1ª safra 2019/2020 em Mato Grosso.
Provedor de dados: 14
Autores: LULU, J.; ZOLIN, C. A.; MAGALHÃES, C. A. de S.
O presente boletim agrometeorológico tem por objetivo fornecer informações relevantes e consolidadas para dar suporte ao setor produtivo de Mato Grosso no sentido do acompanhamento das condições de chuva e déficit hídrico nas regiões produtoras do estado. Importante destacar que, considerando a escala de análise e dado o fator de variabilidade das precipitações e condições de seca, é necessário cautela na interpretação das informações aqui apresentadas. As informações deste boletim são fundamentadas em fontes de dados da Embrapa (Agritempo), CPTEC/INPE (Centro de Previsão de Tempo e Estudos Climáticos) e do INMET (Instituto Nacional de Meteorologia).
Tipo: Folhetos
Palavras-chave: Agritempo; Dados climáticos; Meteorologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121267

Subsídios para plano de contingência da Banana Xanthomonas Wilt - BXW.
Provedor de dados: 14
Autores: ROCHA, L. DE S.; CORDEIRO, Z. J. M.; SILVA, H. S. A.; HADDAD, F.; BARBOSA, F. F. L.
Tipo: Folhetos
Palavras-chave: Banana; Doença de Planta; Replant disease.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121612

Díálogos para prevenção da Covid-19 nos territórios rurais.
Provedor de dados: 14
Autores: ZUIN, L. F. S.; NOVO, A. L. M.; CAMARGO, A. C. de; GREGORI, F.; VALLE, L. R. do; ARROYO, G.; VAZ, J. do A. M. C.; FRAGALLE, C. V. P.; BARELLI, C.; ZUIN, P. B.; LEE, D. A.; DÍAZ MANRIQUE, M. A.; CANEPPELE, F. de L.; SILVA, H. V. V. da.
Neste momento a pandemia da Covid-19 se encontra ativa nos territórios rurais brasileiros. Boa parte dos produtores da agricultura familiar são pessoas acima de 50 anos de idade e também são pertencentes aos grupos de riscos, relacionados a pessoas que possuem diabetes e pressão alta. [1] A produção deste material sugere um conjunto de condutas, procedimentos, ações e atividades para mitigar o risco de contágio da Covid-19, nas mais variadas formas de encontros em suas rotinas de trabalho e na vida dos produtores e produtoras rurais, tanto dentro como fora de suas propriedades. Todos esses materiais dão origem a um conjunto de ações pedagógicas, contendo mensagens de voz, vídeos, cartazes e infográficos (figuras), sendo composto por três partes. A primeira...
Tipo: Livros
Palavras-chave: Covid 19; Territórios rurais; Educação Sanitária; Extensão Rural.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130274

Hortaliça não é só salada. Sanduíche.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com sanduíche. Sanduíche de hortaliças folhosas. Sanduíche colorido. Sanduíche de taioba.
Tipo: Folders
Palavras-chave: Economia Domestica; Culinária; Hortaliça.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129009

BENEFÍCIOS da adubação verde para a agricultura familiar: programa 29: Sul.
Provedor de dados: 14
O Prosa Rural desta semana traz para você a importância da adubação verde e das técnicas de compostagem para a fertilidade do solo. A adubação verde promove a melhoria das qualidades físico-químicas e biológicas do solo, a partir da ciclagem de nutrientes. Geralmente, as leguminosas mais conhecidas pelos agricultores para a produção de fitomassa para adubação verde são as mucunas, algumas espécies de crotalárias, feijão-de-porco e feijão-guandu. O pesquisador da Embrapa Milho e Sorgo, Walter Matrangolo explica detalhes, no Prosa Rural.
Tipo: Gravações de som
Palavras-chave: Agricultura Familiar; Adubação Verde; Compostagem; Fertilidade do Solo; Leguminosa; Mucuna; Crotalária; Feijão de Porco; Guandu; Composting; Soil fertility; Legumes; Pigeon peas; Phytomass.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124131

Os saberes da família Rego da Silva e o artesanato com babaçu: Centro do Coroatá, Esperantinópolis, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122910

Estrutura diamétrica e padrão de crescimento de garapeira na microrregião de Sinop, MT.
Provedor de dados: 14
Autores: CANETTI, A.; BRAZ, E. M.; MATTOS, P. P. de; FIGUEIREDO FILHO, A.; BASSO, R. O.
O planejamento sustentável do manejo madeireiro de florestas naturais tropicais, como as da região Amazônica, é difícil pelo grande número de espécies arbóreas encontradas (Fortini; Zarin, 2011). Atualmente, as taxas de corte utilizadas na Floresta Amazônica consideram uma unidade compacta em metros cúbicos (30 m³ ha-1) para todas as espécies (Brasil, 2006), ou seja, agrupam- se espécies com diferentes ritmos de crescimento (Canetti, 2019). Nessas condições, nem sempre o volume de madeira extraído é recuperado ao final do ciclo de corte (Van Gardingen et al., 2006; Sebbenn et al., 2008; Free et al., 2017). Ainda, caso seja recuperado, esse não refletirá necessariamente a recuperação da produção de madeira de cada espécie individualmente. Para entender esta...
Tipo: Folhetos
Palavras-chave: Estrutura diamétrica; Sustentabilidade; Manejo sustentável; Manejo; Silvicultura; Madeira; Apuleia Leiocarpa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125431

Ovos limpos nos galinheiros caipiras.
Provedor de dados: 14
Autores: VIOLA, T. H.; SOBREIRA, R. dos S.; WALTER, E. H. M.; DUARTE, S. C.; LIMA NETO, A. F.
A manutenção da condição natural de limpeza dos ovos desde o momento da postura até a comercialização é um desafio para produtores e técnicos, uma indicação simples e robusta de qualidade. Fezes, penas, terra e outras sujeiras aderidas à casca do ovo indicam descuido ou alguma falha no sistema de produção. Essas sujidades podem-se transformar em uma preocupante fonte de microrganismos que contaminam o interior do ovo e o ambiente externo. A produção de ovos seguros envolve uma série de medidas preventivas que se iniciam na criação das aves, mantendo-as saudáveis, bem-nutridas e em ambiente adequado ao bem-estar animal. A prevenção da contaminação dos ovos é um requisito fundamental, mas é importante considerar também o papel do consumidor. A maneira mais...
Tipo: Folhetos
Palavras-chave: Ovo; Limpeza; Sistema de Produção; Pequeno Produtor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121771

Cana-de-açúcar: variedade de cana-de-açúcar com maior digestibilidade da parede celular.
Provedor de dados: 14
Autores: MOLINARI, H. B. C.
Cana-de-açúcar geneticamente modificada com maior digestibilidade da parede celular. A tecnologia visa melhorar a biomassa vegetal para produção de etanol celulósico (2G), ração animal e compostos químicos de alto valor agregado.
Tipo: Folders
Palavras-chave: Cana de Açúcar; Biomassa; Genética Vegetal; Melhoramento Genético Vegetal; Plant genetics; Biomass.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126432

Táticas agroecológicas para o manejo de insetos-praga da cultura do algodoeiro.
Provedor de dados: 14
Autores: ALMEIDA, R. P. de.
Em todos os tipos de sistemas produtivos, quer sejam monocultivo ou policultivo, irrigado ou de sequeiro, agroecológico ou onvencional, grande parte das limitações da produção está vinculada a ocorrência de pragas. Os diferentes cultivos de importância econômica (commodities ou não), que visam a sustentabilidade da produção agrícola, têm por princípio direcionar suas ações para o manejo das pragas com base em princípios ecológicos. Os sistemas agroecológicos, por sua vez, têm por objetivo a otimização da produção de forma a garantir a sustentabilidade do agroecossistema, conferindo qualidade e segurança ambiental. As técnicas de produção não precisam necessariamente ser as mais sofisticadas, entretanto devem atender às necessidades das práticas de cultivo...
Tipo: Livros
Palavras-chave: Insetos-praga; Sistema Agroecológico; Agroecologic system; Policultivo; Polyculture; Resíduos culturais; Cultural waste; Algodão; Inseto Para Controle Biológico; Inimigo Natural; Praga; Biological control; Cotton; Insect pests; Natural enemies.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135898

Produção intensiva de animais e serviços ambientais: estratégias e indicadores.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Preservação ambiental; Serviços Ambientais; Produção Animal; Suinocultura; Qualidade da Água; Bacia Hidrográfica; Agricultura Sustentável; Preservação da Natureza.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123957

Experimentos cooperativos de aplicações de fungicidas aos 30 dias após a emergência da cultura da soja: safras 2016/2017, 21018/2019 e 2019/2020.
Provedor de dados: 14
Autores: GODOY, C. V.; UTIAMADA, C. M.; MEYER, M. C.; CAMPOS, H. D.; LOPES, I. de O. N.; DIAS, A. R.; MUHL, A.; PIMENTA, C. B.; NAKASHIMA, C.; MORESCO, E.; SIQUERI, F. V.; JULIATTI, F. C.; JULIATTI, F. C.; FEKSA, H. R.; JUNIOR, I. P. A.; BONANI, J. C.; ROY, J. M. T.; GRIGOLLI, J. F. J.; NUNES JUNIOR, J.; ARRUDA, J. H.; BELUFI, L. M. de R.; NAVARINI, L.; MOREIRA, L. S. de O.; SILVA, L. H. C. P. da; SATO, L. N.; SENGER, M.; DIAS, M. D.; MÜLLER, M. A.; MARTINS, M. C.; DEBORTOLI, M. P.; TORMEN, N. D.; BALARDIN, R. S.; MADALOSSO, T.; CARLIN, V. J.
Tipo: Folhetos
Palavras-chave: Soja; Fungicida; Soybeans; Fungicides.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124580

Chuvas em 2019 ficam abaixo da média.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
De acordo com os registros obtidos na estação meteorológica da Embrapa, em Jales, o total de chuvas durante o ano de 2019 foi de 1014 mm, o que representa 78% da média histórica anual (1304 mm).
Tipo: Artigo na mídia
Palavras-chave: Clima; Mudança Climática; Chuva; Previsão do Tempo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119678

As vivências da família Sousa Lopes na construção da diversidade: Pau Ferrado dos Procópio, Lago do Junco, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; PIRATOBA, D. N. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122788

INTENSIFICAÇÃO sustentável da agricultura no Cerrado com iLPF: programa 26: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana mostra como os sistemas de Integração Lavoura-Pecuária-Floresta, ILPF, podem multiplicar a produção numa mesma área, contribuindo para atender à crescente demanda mundial por alimentos, além de proporcionar benefícios ao meio ambiente. Nosso convidado é o pesquisador Robélio Marchão, da Embrapa Cerrados, que fala sobre a ILPF no Bioma Cerrado.
Tipo: Gravações de som
Palavras-chave: Agricultura Sustentável; Floresta; Lavoura; Pecuária; Alimento; Cerrado; Meio Ambiente; Produção de Alimentos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123576

INVESTIR em boas práticas de manuseio para gerar lucro: Embrapa e DataHorti desenvolvem atividades de padronização de processos.
Provedor de dados: 14
Entrevista dada pelo pesquisador Antonio Gomes Soares.
Tipo: Artigo na mídia
Palavras-chave: Tecnologia de Alimento; Food technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124884

Hortaliça não é só salada. Congelador.
Provedor de dados: 14
Autores: LANA, M. M.
Congelador: um aliado na redução do desperdício. Congelador: grande aliado, mas não para todas as hortaliças. Prepare o produto que será congelado. Método e tempo de branqueamento. Quanto tempo dura o produto congelado. como descongelar. Vale a pena considerar.
Tipo: Folders
Palavras-chave: Desperdício; Preservação de Alimento; Hortaliça; Economia Domestica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129067

Arroz de terras altas.
Provedor de dados: 14
Autores: CRAVO, M. da S.; SILVEIRA FILHO, A.; RODRIGUES, J. E. L. F.; VELOSO, C. A. C.
Tipo: Parte de livro
Palavras-chave: Arroz.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127252

Desempenho de cultivares de soja em função da população de plantas em diferentes ambientes de produção do Maranhão.
Provedor de dados: 14
Autores: VILELA, G. F.; FOLONI, J. S. S.; VIEIRA, P. F. de M. J.
Tipo: Folhetos
Palavras-chave: MATOPIBA; Soja; Variedade; Densidade de Plantio; Densidade de Semeadura; Interação Genética; Soybeans; Cultivars; Plant density.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122295

Amostragem de solo para recomendação de calagem e adubação.
Provedor de dados: 14
Autores: BORGES, A. L.; ACCIOLY, A. M. de A.
Tipo: Folders
Palavras-chave: Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127971

Índice de atualização tecnológica para propriedades leiteiras: IAT-Leite.
Provedor de dados: 14
Autores: DE MORI, C.; CAMARGO, A. C. de; NOVO, A. L. M.; PALHARES, J. C. P.; BERGAMASCHI, M. A. C. M.; BARIONI JUNIOR, W.; VINHOLIS, M. de M. B.
Dentre os diversos Complexos Agroindustriais (CAI) no país, o CAI do leite se destaca pela variedade de produtos ofertados e por sua importância na dieta dos brasileiros, bem como pela participação na atividade econômica do país. Com um faturamento de R$ 68,7 bilhões, segundo dados da Associação Brasileira da Indústria de Alimentos (2019), a indústria láctea ocupou a segunda posição no ranking de faturamento dos principais setores alimentícios do país em 2018. A produção brasileira de leite, estimada em 35,1 bilhões de litros, envolvendo 1,1 milhão de propriedades e um rebanho de 18,6 milhões de vacas ordenhadas em 2017, é a quinta maior produção mundial. O segmento de recebimento e processamento do país possui 2 mil laticínios com SIF e um total de 4...
Tipo: Folhetos
Palavras-chave: Atualização tecnológica; Propriedades rurais; Balde Cheio; Leite; Produção Leiteira.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122432

Projeto ABC Corte: resultados das safras 2017/2018 e 2018/2019.
Provedor de dados: 14
Autores: ALCÂNTARA, P. H. R. de; GRISE, M. M.; BARBOSA, C. F.; CUNHA, M. K.; MORENO, L. S. de B.
O ABC Corte é um projeto de transferência de tecnologia coordenado pela Embrapa e executado por meio de parcerias com instituições de assistência técnica públicas e privadas. O objetivo é estimular a adoção de tecnologias para a intensificação da produção de carne em pastagens por meio de uma rede de técnicos multiplicadores certificados e Unidades de Referência Tecnológica (URTs) no estado do Tocantins. As tecnologias propostas estão alinhadas ao Plano Agricultura de Baixa Emissão de Carbono (Plano ABC), visando à recuperação de pastagens degradadas e à redução de pressão antrópica sobre áreas de vegetação nativa nos biomas Cerrado e Amazônia. O Plano ABC do Tocantins estabelece uma meta de recuperação de 1,2 milhão de ha de pastagens degradadas até o ano...
Tipo: Folhetos
Palavras-chave: Gado de Corte; Pastagem; Transferência de Tecnologia; Produção de Carne.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124561

Laranjeiras doces [Citrus sinensis (L.) Osbeck] para o polo citrícola dos Tabuleiros Costeiros da Bahia e de Sergipe: frutos para indústria e mesa.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; TEODORO, A. V.; CARVALHO, L. M. de; SOARES FILHO, W. dos S.; GIRARDI, E. A.; LEDO, C. A. da S.; PASSOS, O. S.; CARVALHO, L. J. L. de.
Tipo: Folhetos
Palavras-chave: Laranja Doce; Fruta Cítrica; Pomar; Economia Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127530

Critérios para o cálculo do custo operacional e da rentabilidade do produtor integrado de aves e de suínos no Brasil.
Provedor de dados: 14
Autores: TALAMINI, D. J. D.; SANTOS FILHO, J. I. dos.
Tipo: Livros
Palavras-chave: Avicultura; Suinocultura; Produção Animal; Custo de Produção; Custo Operacional; Rentabilidade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125440

Metodologia de análise do mosaico da paisagem aplicada à avaliação do risco de degradação de habitats nos Biomas Mata Atlântica, Pampa e Caatinga.
Provedor de dados: 14
Autores: ROSOT, M. A. D.; GARRASTAZU, M. C.; FRANCISCON, L.; MARAN, J. C.; OLIVEIRA, Y. M. M. de.
Neste trabalho são abordados aspectos metodológicos da análise do mosaico da paisagem aplicada à avaliação do risco de degradação de habitats. A técnica se baseia no uso de janelas móveis para medir as contribuições relativas de três tipos-chave de uso e cobertura da terra (ambientes naturais ou seminaturais, áreas de cultivo agrícola e áreas urbanizadas), na vizinhança de um determinado pixel do mapa correspondente. Sobre esses resultados é sobreposta uma máscara dos habitats florestais (Floresta Natural, Outras Terras com Vegetação Lenhosa e Outras Terras com Árvores) para caracterizar o contexto da paisagem florestal no seu entorno, que pode ser natural ou uma mescla de zonas de interface floresta/não-floresta com áreas de agricultura ou urbanizadas. O...
Tipo: Folhetos
Palavras-chave: Avaliação do risco; Monitoramento ambiental; Landscape Mosaic; Análise do mosaico da paisagem; Sistema de Informação Geográfica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126895

Hérnia umbilical: um problema persistente na suinocultura.
Provedor de dados: 14
Autores: SAVOLDI, I. R.; IBELLI, A. M. G.; PEIXOTO, J. de O.; LEDUR, M. C.
Tipo: Artigo na mídia
Palavras-chave: Hérnia umbilical; Suinocultura; Hérnia; Umbigo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125664

Boas práticas para controle da mosca-dos-estábulos: propriedades pecuárias.
Provedor de dados: 14
Autores: EMBRAPA GADO DE CORTE.; VOLARE: consultoria ambiental.
Tipo: Folders
Palavras-chave: Controle de inseto; Mosca dos Estábulos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123565

Mancha-de-septoria x tripes: diferenciação sintomatológica nas folhas do cajueiro-anão.
Provedor de dados: 14
Autores: MARTINS, M. V. V.; VIDAL NETO, F. das C.; DIAS, N. da S.; VIANA, F. M. P.
Esta praga tem sido observada em campo atacando diferentes clones de cajueiro, com alto grau de infestação nas folhas das plantas. São esses sintomas manifestados nas folhas das plantas infectadas pelo fungo ou infestadas pela praga, que podem dificultar o diagnóstico quanto ao agente causal. Deste modo, o objetivo deste trabalho foi descrever as diferenças sintomatológicas observadas entre a ocorrência da mancha-de-septoria e do tripes H. fulvus, em cajueiro.
Tipo: Folhetos
Palavras-chave: Septoria anacardii; Holopothrips fulvus; Anacardium Occidentale; Patógeno; Praga de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121299

Qual a diferença entre grãos e sementes?
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000983965/qual-a-diferenca-entre-graos-e-sementes.html.
Tipo: Artigo na mídia
Palavras-chave: Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121465

MANEJO de solo para redução de perdas por estiagens: programa 25: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o manejo correto do solo, que se torna ainda mais importante em anos com estiagem no verão, quando as plantas sofrem com a falta d'água nas lavouras. O agrônomo Jorge Lemainski, da Embrapa Trigo, mostra a relação direta entre a conservação do solo e o aumento do rendimento na produção de grãos, e explica por que propriedades de uma mesma região têm desempenhos tão diferentes em uma mesma condição climática.
Tipo: Gravações de som
Palavras-chave: Manejo do Solo; Estiagem; Conservação do Solo; Grão; Propriedade Rural; Verão; Lavoura; Perda da Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123606

Otimização e validação de técnica voltamétrica para a detecção e quantificação de compostos fenólicos de interesse agrícola: ácidos fenólicos, flavonoides, taninos e estilbenos.
Provedor de dados: 14
Autores: MAGARELLI, G.; CAVALCANTE, R. S.; CASTRO, C. S. P. de.
Tipo: Folhetos
Palavras-chave: Voltammetry; Method validation; Reducing power; Oxidation potential; Voltametria; Validação de métodos; Poder redutor; Potencial de oxidação; Phenolic acids; Flavonoids; Tannins; Stilbenes.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126457

Determinação do volume de substrato para o cultivo sem solo do tomateiro Grupo Italiano no Trópico Úmido.
Provedor de dados: 14
Autores: BERNI, R. F.; CARDOSO, M. O.; CHAVES, F. C. M.; CUNHA, A. L. B. da.
Tipo: Folhetos
Palavras-chave: Tomate.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121334

Fundação ABC e Embrapa iniciam a avaliação do trigo com duplo propósito para o sistema de integração lavoura - pecuária.
Provedor de dados: 14
Autores: CASTRO, R. L. de; FONTANELI, R. S.; CAIERAO, E.; SANTOS, H. P. dos.
A Embrapa Trigo foi pioneira no Brasil na criação de cultivares de trigo com aptidão para alimentação animal, seja via pastejo direto ou forragem colhida e, adicionalmente, com potencial para ainda produzir grãos, os chamados trigos de duplo propósito. Uma tecnologia inovadora no País, que oportunizou o aumento da renda do produtor rural, especialmente por viabilizar a maior oferta de forragem no outono/inverno, quando as pastagens tradicionais de aveia-preta e azevém, devido às baixas temperaturas e à menor luminosidade, apresentam taxa de crescimento reduzida (Fontaneli et al., 2019)
Tipo: Artigo na mídia
Palavras-chave: Alimentação animal; Forragem colhida; Trigo; Lavoura; Pecuária; Pastejo Direto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124157

Pós-Melhoramento de Passifloras no Brasil: a experiência da Embrapa em inovação.
Provedor de dados: 14
Autores: ZACHARIAS, A. O.; FALEIRO, F. G.; JUNQUEIRA, K. P.; JUNQUEIRA, N. T. V.
Neste documento, são apresentadas as análises das atividades de pós-melhoramento de maracujazeiro (Passiflora spp.), realizadas pela Embrapa e parceiros, com a finalidade de demonstrar, de forma sintetizada, como a estruturação dessas ações e a integração de esforços entre agentes públicos e privados podem otimizar o trabalho de transferência de tecnologia, potencializar a adoção das cultivares oriundas dos programas de melhoramento genético e servir de exemplo para outras instituições de pesquisa no Brasil. O desenvolvimento de novas cultivares de maracujazeiro (mais tolerantes a doenças, com alto potencial produtivo e ornamental, adaptadas às diferentes regiões) e as ações da rede de validação implantada pela Embrapa estão permitindo que as cultivares...
Tipo: Folhetos
Palavras-chave: Maracujá; Pesquisa; Pesquisa Agrícola; Inovação; Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126737

Expressão histoquímica temporal de cultivares de trigo de distinta reação à ferrugem-da-folha.
Provedor de dados: 14
Autores: VEIGA, V. F. da; BIFF, M.; BRAMMER, S. P.
A ferrugem-da-folha, causada pelo fungo Puccinia triticina, é uma doença importante para a triticultura do Sul do Brasil. Nesse contexto, buscamos compreender através de análises histoquímicas, a expressão temporal das cultivares de trigo Toropi (resistente) e IAC 13-Lorena (suscetível) à ferrugem-dafolha. A análise foi realizada na folha bandeira e na fase de espigamento das plantas, sendo determinados quatro tempos pré e após as inoculações do patógeno: 0, 24, 48 e 72 horas. Os compostos histoquímicos utilizados e a relação com as estruturas histológicas e resposta da planta foram: fluroglucina (ligninas), Sudan III (lipídeos totais), cloreto férrico (compostos fenólicos) e cloreto de alumínio (flavonoides). Para cada cultivar foram avaliadas oito...
Tipo: Parte de livro
Palavras-chave: Feerrugem-da-folha; Cultivar de trigo; Puccinia triticina; Triticultura; Brasil; Ligninas; Lipídios; Flavonoides; Fenóis; Trigo; Variedade; Ferrugem; Histoquímica; Folha; Fungo; Doença de Planta; Triticum Aestivum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1134269

O legado agropecuário da Carta do Achamento do Brasil.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000988088/o-legado-agropecuario-da-carta-do-achamento-do-brasil.html.
Tipo: Artigo na mídia
Palavras-chave: Historia; Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123183

A avicultura brasileira e o mercado de mundial das carnes.
Provedor de dados: 14
Autores: TALAMINI, D. J. D.; MARTINS, F. M.
Tipo: Artigo na mídia
Palavras-chave: Cadeia Produtiva; Mercado Mundial; Economia da Produção; Avicultura; Produção de Carne; Exportação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128182

Manejo eficaz na vacinação de ovinos e caprinos.
Provedor de dados: 14
Autores: OLIVEIRA, E. L. de; MONTEIRO, A. W. U.
O manejo sanitário é um dos principais pilares da eficiência produtiva em rebanhos de pequenos ruminantes. Dentre as ferramentas de manejo trabalhadas no dia a dia da gestão da propriedade rural, a vacinação é uma atividade profilática que trás segu-rança para o criador e evita, muitas vezes, grandes prejuízos econômicos. O conteúdo elaborado busca preencher uma lacuna no conhecimento prá-tico para o alcance da vacinação segura e efetiva dos rebanhos, uma con-tribuição a técnicos, criadores e estudantes envolvidos no gerenciamento da produção de caprinos e ovinos. O texto aborda os cuidados primordiais com o rebanho no tocante a vacinação, fruto do conhecimento acumulado pela Embrapa Caprinos e Ovinos em 45 anos dedicados a pesquisa, e destaca as práticas...
Tipo: Folhetos
Palavras-chave: Ovino; Caprino; Sanidade Animal; Vacinação; Small ruminants; Goats; Sheep; Vaccination.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124927

Formulação de uma solução estabilizante para estocagem de um imunossensor eletroquímico para detecção de Salmonella sp.
Provedor de dados: 14
Autores: BRITO, F. A. E. de; BEZERRA, L. C. R.; FURTADO, R. F.; BORGES, M. de B.; MACHADO, T. F.; ALVES, C. R.; FIGUEIREDO, E. A. T. de.
A especificidade e seletividade envolvida na interação antígeno-anticorpo é amplamente explorada, principalmente na composição de kits para detecção de patógenos da área da saúde e, mais recentemente, para o desenvolvimento de imunossensores. Contudo, nos estudos até aqui desenvolvidos, observa-se uma lacuna no que se refere ao armazenamento desses dispositivos, sendo comum nos laboratórios de pesquisa a montagem do sistema seguida imediata-mente da análise. Em razão da ausência de soluções estabilizantes comerciais para imunossensores, considerando-se fins de transferência de tecnologia e comer-cialização, que abrange a questão de produção, armazenamento, distribuição e responsabilidade de entrega de um produto em condições ideais para a realização das...
Tipo: Folhetos
Palavras-chave: Imunossensor; Salmonella spp; Estabilizante; Immunosensors; Salmonellosis; Stabilizers.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124180

Pragas do cajueiro na microrregião do Alto Mearim no estado do Maranhão.
Provedor de dados: 14
Autores: FONSECA, W. L.; MESQUITA, A. L. M.; CARDOS, J. E.; MOTA, M. do S. C. de S.
Tipo: Parte de livro
Palavras-chave: Anacardium Occidentale; Sistema de Cultivo; Insecta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128426

Sorgo biomassa BRS 716 para produção de forragem e palha em sistema de plantio direto e preparo convencional com soja.
Provedor de dados: 14
Autores: BORGHI, E.; SILVA, G. F. da; CALONEGO, J. C.; PARRELLA, R. A. da C.; ANTONIO, M. S.
O sorgo biomassa BRS 716 é conhecido pelo alto potencial de produção de biomassa e pela tolerância à seca. Pode ser uma opção de cultivo de outono-inverno para produção de forragem ou para produção de palha no Sistema Plantio Direto (SPD) em áreas de sequeiro, com possíveis respostas à adubação nitrogenada, dependendo do sistema de manejo do solo. O objetivo deste trabalho foi avaliar a produção de biomassa de sorgo cultivar BRS 716 em sistema de preparo convencional do solo (SPC) e em SPD com diferentes doses de nitrogênio, assim como o efeito na produtividade da soja em sucessão, cultivada sobre a palhada de sorgo. O experimento foi conduzido na Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, Botucatu-SP. O delineamento experimental...
Tipo: Folhetos
Palavras-chave: Sorghum Bicolor; Sistema de Cultivo; Rotação de Cultura; Glycine Max; Cobertura do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126603

A vivência dos Freitas no manejo da roça e na criação de aves: Povoado de Alto Alegre, Lago da Pedra, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; MATOS, F. F. de; SOUSA, R. C. de.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122832

Morfogênese de Panicum maximum cv. Tanzânia-1 sob intensidades de desfolhação.
Provedor de dados: 14
Autores: COSTA, N. de L.; JANK, L.; BENDAHAN, A. B.; MAGALHAES, J. A.; SANTOS, F. J. de S.; RODRIGUES, B. H. N.
Tipo: Folhetos
Palavras-chave: Matéria seca verde.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123480

Water quality and pollution reduction.
Provedor de dados: 14
Autores: NICODEMO, M. L. F.; MATTHIENSEN, A.; OLIVEIRA FILHO, E. C. de; PEREIRA, L. A.; BRITO, L. T. de L.; OTENIO, M. H.; OLIVEIRA, M. D. de; SCORZA JUNIOR, R. P.
This chapter addresses Embrapa?s contribution to target 6.3, which relates to water quality and pollution reduction. Decreasing the availability of good quality water is a growing and global concern. Monitoring water quality, coupled with the adoption of good soil and water management practices and the use of technologies to reduce the production of contaminants, can contribute significantly to minimizing this problem and ensuring good quality water for all. The present chapter sought to list search results that point out paths that can be followed. More information is available on the portal Technological Solutions at Embrapa (Embrapa, 2017b).
Tipo: Parte de livro
Palavras-chave: Recovery of water quality; Pollution preservation; Reduction pollutant load; Integrated water use; Ecosystem restoration; Water contamination; Qualidade da Água; Desenvolvimento Sustentável; Manejo de Água.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131186

BRS 396, BRS 397, BRS 398 e BRS 399: novas cultivares de mandioca de mesa com coloração da polpa das raízes amarela e creme.
Provedor de dados: 14
Autores: VIEIRA, E. A.; FIALHO, J. de F.; JULIO, L. de; CORTE, J. L. D.; RINALDI, M. M.; OLIVEIRA, C. M. de; FERNANDES, F. D.; ANJOS, J. de R. N. dos.
Os consumidores de mandioca de mesa (cozidas, fritas, chips, mandioca palito, pré-cozida, massas, entre outras) estão se tornando cada vez mais exigentes quanto aos aspectos organolépticos, sanitários e nutricionais. Essa mudança no perfil forçou os produtores a uma rápida incorporação de tecnologias modernas de cultivo. Nesse sentido, o programa de melhoramento genético de mandioca da Embrapa Cerrados foca no desenvolvimento de cultivares de mandioca de mesa com baixos teores de HCN nas raízes, mais nutritivas, precoces, produtivas, adaptadas ao plantio mecanizado e ao cultivo irrigado, resistentes às principais pragas e doenças e com boas qualidades culinárias. Tudo isso aliado à boa aceitação por parte dos produtores e consumidores de mandioca.
Tipo: Folhetos
Palavras-chave: Mandioca; Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130647

USO de abanadora para diminuir perda de grãos: programa 33: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana apresenta três abanadoras de grãos para pequenas propriedades. O ouvinte vai conhecer essas máquinas de pequeno porte, cujos principais benefícios são a redução do trabalho do campo e do tempo de limpeza dos grãos de feijão, arroz, milho e soja. O pesquisador José Geraldo da Silva fala sobre cada um dos modelos, que variam conforme o perfil dos produtores e tem condições de ser construídos por eles por eles próprios.
Tipo: Gravações de som
Palavras-chave: Arroz; Feijão; Grão; Milho; Perda da Produção; Produtor; Propriedade Rural; Soja.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124748

Segurança, seguridade e sustentabilidade na produção de suínos.
Provedor de dados: 14
Autores: NUNES, E. de O.; ZANELLA, J. R. C.
Tipo: Artigo na mídia
Palavras-chave: Sustentabilidade econômica; Sustentabilidade social; Seguridade; Qualidade da carne; Suinocultura; Produção Animal; Cadeia Produtiva; Cadeia Alimentar; Segurança Alimentar; Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125671

Momento da adubação nitrogenada em pastagens intensivamente manejadas.
Provedor de dados: 14
Autores: GOMIDE, C. A. de M.; PACIULLO, D. S. C.; MARTINS, C. E.
Recentemente, alguns trabalhos realizados com fertilizantes nitrogenados têm avaliado o efeito do momento da adubação de cobertura sobre algumas características de gramíneas forrageiras, sobretudo a produção de forragem. Este comunicado técnico avalia alguns aspectos ligados à eficiência da adubação nitrogenada em pastagens e busca compilar os principais resultados obtidos em estudos que avaliaram o momento da adubação nitrogenada após a desfolha em gramíneas tropicais.
Tipo: Folhetos
Palavras-chave: Adubação nitrogenada; Absorção do nitrogênio; Perfilhamento; Nitrogenio em pastagens.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126990

RADAR SOLOS.
Provedor de dados: 14
O papel dos solos na segurança alimentar; Geotecnologias aplicadas ao manejo e conservação do solo e da água; Carbono no solo, mudança do clima e segurança alimentar; Solos: estratégico para as mudanças climáticas; Governança de dados do solo e água: o que o futuro nos reserva?; Água, sabendo usar não vai faltar; Tecnologia de bioanálise de solo BioAS Embrapa: a mais nova aliada da sustentabilidade agrícola; A profunda relação do homem com o solo; Agrivoltaics: uma nova agricultura?; A convergência tecnológica nos campos das tecnologias espaciais, inteligência artificial e a computação de alto desempenho abrem novas perspectivas e avanços para o monitoramento dos solos e das culturas agrícolas; Segredos do microbioma do solo; ESG e a relação com o setor...
Tipo: Fascículos de periódicos
Palavras-chave: Solo; Pedologia; Soil science.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128385

Eucalipto.
Provedor de dados: 14
Autores: ROCHA, J. E. C. da; GAMA, M. A. P.; BRASIL, E. C.; LIMA, M. D. R.; BARROS JUNIOR, U. de O.
Tipo: Parte de livro
Palavras-chave: Eucalipto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127335

Cultivar BRS 4105 - nova variedade de milho para o Amazonas.
Provedor de dados: 14
Autores: OLIVEIRA, I. J. de; BARRETO, J. F.; FONTES, J. R. A.; GUIMARAES, P. E. de O.; GUIMARAES, L. J. M.
Ambientes de avaliação. Desempenho produtivo. Recomendações para cultivo.
Tipo: Folhetos
Palavras-chave: Milho.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128451

IMPORTÂNCIA do serviço de quarentena vegetal: programa 9: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta apresenta o Serviço de Quarentena Vegetal da Embrapa. O pesquisador Norton Benito, da Embrapa Recursos Genéticos e Biotecnologia, explica a importância e o funcionamento desse serviço, que tem a função de criar uma barreira fitossanitária de modo a impedir que entrem no Brasil pragas provenientes de outros países. O ouvinte vai saber também como baixar, gratuitamente, o livro Priorização de Pragas Quarentenárias Ausentes no Brasil, fruto de uma parceria da Embrapa com o Departamento de Sanidade Vegetal do Mapa
Tipo: Gravações de som
Palavras-chave: Quarentena; Praga Quarentenária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120701

Núcleo de conservação de caranha (Piaractus brachypomus): Embrapa Pesca e Aquicultura.
Provedor de dados: 14
Autores: KIRSCHNIK, L. N. G.
A caranha Piaractus brachypomus, também conhecida como pirapitinga, é uma espécie de peixe nativa das bacias hidrográficas do Norte do País (Tocantins-Araguaia e Amazonas), sendo produzida principalmente nas regiões Norte, Nordeste e Centro-Oeste. Além da sua criação, a caranha vem sendo bastante utilizada, juntamente com o tambaqui, para a produção de híbridos. Sua carne é apreciada pela maior deposição muscular na região do lombo, consequência do formato de seu corpo que é arredondado, com dorso alto e região das costelas ampla.
Tipo: Parte de livro
Palavras-chave: Caranha; Banco de Germoplasma; Peixe; Conservação; Piaractus brachypomus; Fish.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129519

MANUTENÇÃO do babaçu na paisagem pecuária com ILPF: programa 43: Centro-Oeste/Sudeste.
Provedor de dados: 14
Esta semana você tem um programa imperdível no Prosa Rural. O programa fala sobre a manutenção do babaçu na paisagem pecuária com ILPF, o sistema Integração Lavoura-Pecuária-Floresta. A Embrapa Cocais vem desenvolvendo estudos de avaliação de diferentes sistemas ILPF, buscando soluções para a manutenção de babaçuais na paisagem de pecuária, que promovam a integração econômica entre os produtos obtidos a partir do babaçu e os sistemas de criação de bovinos na região do Pindaré, Oeste maranhense. Participam do programa os pesquisadores Joaquim Costa e Luciano Muniz.
Tipo: Gravações de som
Palavras-chave: Sistema ILPF; Babaçu; Babaçual; Floresta; Lavoura; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126146

Manejo de grapholita molesta através do uso de feromônio sexual sintético.
Provedor de dados: 14
Autores: KOVALESKI, A.
A mariposa-oriental, Grapholita molesta (Busck) (Lepidoptera:Tortricidae), é uma das principais pragas das rosáceas no mundo tendo se destacado como uma praga importante na cultura da macieira. A polifagia; elevada fecundidade; ocorrência de quatro a cinco gerações/ano; o hábito críptico, desenvolvendo-se no interior de burrknots, ponteiros e frutos que reduz a exposição das lagartas a ação de inseticidas e inimigos naturais; a baixa incidência de inimigos naturais nos pomares e a ocorrência de diapausa, que protege a população durante o inverno, são fatores que favorecem a sobrevivência e dificultam o controle da mariposa-oriental nos pomares de macieira.
Tipo: Artigo na mídia
Palavras-chave: Grapholita Molesta; Feromônio; Mariposa Oriental; Praga; Praga de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124840

Café 'Conilon' (Coffea canephora L.).
Provedor de dados: 14
Autores: VELOSO, C. A. C.; AUGUSTO, S. G.
Tipo: Parte de livro
Palavras-chave: Café.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127269

Fungos em sementes de feijão-caupi: detecção, qualidade sanitária e controle alternativo.
Provedor de dados: 14
Autores: ATHAYDE SOBRINHO, C.; SANTOS, A. R. B.; SILVA, P. H. S. da.
Introdução; Teste de sanidade de sementes em feijão-caupi; Requisitos mínimos para um laboratório de sanidade de sementes de feijão-caupi; Fungos em sementes de feijão-caupi e suas implicações sanitárias; Fungos leveduriformes e bactérias saprófitas; Qualidade sanitária e tratamento alternativo de patógenos em sementes de feijão-caupi.
Tipo: Livros
Palavras-chave: Sanidade vegetal; Semente; Fungo; Controle Cultural; Doença Fúngica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130122

Hortaliça como comprar, conservar e consumir: chicória.
Provedor de dados: 14
Autores: SANTOS, F. F. dos; MATOS, M. J. L. F.; TAVARES, S. A.; MELO, M. F. de; LANA, M. M.
Chicória. Como comprar. Como conservar. Como consumir. Bolinho de chicória e arroz. Sanduíche de chicória.
Tipo: Folders
Palavras-chave: Chicória; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125772

Dinâmica na cultura da cana-de-açúcar no Brasil: 1990 a 2018.
Provedor de dados: 14
Autores: GAROFALO, D. F. T.; PACKER, A. P.; RAMOS, N. P.; KONDO, V. Y.; MATSUURA, M. I. da S. F.; CABRAL, O. M. R.
Resumo: A publicação apresenta uma análise sucinta de dados referentes ao histórico e à dinâmica de produção da cana-de-açúcar brasileira entre 1990 e 2018. São abordadas informações em escala nacional e por macrorregiões do País sobre a ocupação de áreas e a produtividade, retratando ciclos de retração e expansão que caracterizam a dinâmica da cana-de-açúcar neste período. A discussão relaciona esses ciclos às mudanças de tecnologia (eliminação da queima para colheita, ampliação da mecanização, entre outras) aos fatores climáticos e também aos desdobramentos de políticas de governo, que afetaram o setor sucroenergético neste período.
Tipo: Folhetos
Palavras-chave: Expansão agrícola Cana de Açúcar Historia Produção Agrícola Produtividade Mecanização Agrícola Sugarcane Economic; Census and historical data Greenhouse gas emissions.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125169

Indicação de folha índice para diagnose foliar em sorgo-sacarino.
Provedor de dados: 14
Autores: LIMA FILHO, O. F. de.
Fatores que afetam a composição foliar; Conceito de diagnose foliar; Para que serve?; O Sorgo; Estabelecimento da folha diagnóstica; Como fazer a amostragem.
Tipo: Folhetos
Palavras-chave: Diagnose foliar; Sorgo sacarino; Foliar diagnosis; Sorgo; Sorghum Bicolor; Nutrient content.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122625

Manejo de plantas de cobertura e adubação para abacaxizeiro cultivado em sistema orgânico de produção em Lençóis, Chapada Diamantina, BA.
Provedor de dados: 14
Autores: PADUA, T. R. P. de; ROSA, R. C. C.; MATOS, A. P. de; VIANA, E. de S.; REIS, R. C.; CORDEIRO, Z. J. M.
Tipo: Folhetos
Palavras-chave: Abacaxi; Adubação; Agricultura Orgânica; Pineapples; Organic compounds.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121949

COMO fazer adubo orgânico Bokashi: programa 35: Sul.
Provedor de dados: 14
O Prosa Rural desta semana apresenta o composto Bokashi ? um adubo orgânico, de origem japonesa, que atua tanto no fornecimento de nutrientes para as plantas quanto como condicionador biológico. O pesquisador José Guilherme Marinho Guerra, da Embrapa Agrobiologia, explica por que o Bokashi é tão eficiente. O produtor vai ser informado também sobre a possibilidade de preparação deste fertilizante na propriedade ou, em conjunto, por meio de associações ou cooperativas.
Tipo: Gravações de som
Palavras-chave: Adubo Orgânico; Condicionador do Solo; Fertilizante; Nutriente; Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124764

Viabilidade econômica da cultura do milho safrinha 2021, em Mato Grosso do Sul.
Provedor de dados: 14
Autores: RICHETTI, A.; CECCON, G.
Tipo: Folhetos
Palavras-chave: Custo de Produção; Milho.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129099

Produção de mudas de açaizeiro em recipientes de diferentes volumes.
Provedor de dados: 14
Autores: NASCIMENTO, W. M. O. do; GATTI, L. A. P.
O açaizeiro (Euterpe oleracea Mart.) é palmeira nativa da região amazônica, cuja expansão das áreas cultivadas tem aumentado a demanda pela produção de mudas. Entretanto, essa tecnologia ainda necessita de pesquisas que visem reduzir os custos de produção, assim como facilitar o manejo e transporte. O objetivo do trabalho foi avaliar o uso de recipientes de diferentes volumes na produção de mudas de E. oleracea. As mudas de açaizeiro foram obtidas de sementes da cultivar BRS Pará para serem usadas em dois tipos de substratos (controle e alternativo) e como recipientes sacos de polietileno com capacidade de 1,9 mil centímetros cúbicos e tubetes nos volumes de 280 cm3, 175 cm3 e 95 cm3. O delineamento utilizado foi inteiramente casualizado, com cinco...
Tipo: Folhetos
Palavras-chave: Açaí; Euterpe Oleracea.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128352

Resumos expandidos...
Provedor de dados: 14
Autores: JORNADA ACADÊMICA DA EMBRAPA SOJA, 15., 2020, Londrina.
Tipo: Livros
Palavras-chave: Pesquisa Agrícola; Soja; Agricultural research; Soybeans.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124727

RAÇA SINDI na região agreste do Nordeste: programa 22: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
A raça Sindi na Região Nordeste é o tema do Prosa Rural desta semana. A Sindi é uma raça de bovinos, de origem paquistanesa, já plenamente adaptada às condições climáticas do Nordeste. Ela tem dupla aptidão e também possui grande potencial produtivo. Você vai conhecer as estratégias de manejo para a criação da raça, com foco na produção de leite. E quem vai nos acompanhar no programa é o pesquisador da Embrapa Semiárido, Rafael Dantas.
Tipo: Gravações de som
Palavras-chave: Origem paquistanesa; Gado Sindi; Bovino; Leite.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122767

Influência do espaçamento entre árvores na produção de madeira em sistemas integrados de produção.
Provedor de dados: 14
Autores: CIPRIANI, H. N.; COSTA, T. C. e C. da; PASSOS, A. M. A. dos; VIEIRA, A. H.; SALMAN, A. K. D.; CRUZ, P. G. da.
Tipo: Folhetos
Palavras-chave: ILPF; Lavoura-pecuária-floresta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120179

Espécies vegetais recomendadas para cortinamento em Estações de Tratamento de Esgoto (ETEs) nas Regiões Metropolitana, dos Sinos e do Litoral Norte do Rio Grande do Sul.
Provedor de dados: 14
Autores: MIURA, A. K.; HENZEL, A. B. D.; MOLINA, A. R.; BIERHALS, D. F.; GUTERRES, D. da S.; GUARINO, E. de S. G.; BESKOW, G. T.; GOMES, G. C.; CUNHA, H. N. DA; REAL, I. M. da L.; SOUSA, L. P. de; SOARES, M. M.; KAISER, M. F.; FREITAS, T. C. de; SPIERING, V.
Estações de tratamento de esgoto são empreendimentos potencialmente produtores de odores e ruídos desagradáveis, que comumente estão alocadas junto a comunidades urbanas, gerando constantes conflitos entre ambas (Scussel; Giassi, 2014). Como forma de reduzir esses impactos nas comunidades vizinhas às ETEs, as cortinas vegetais tornam-se uma valorosa alternativa (Monterosso, 2009), pois promovem a diluição, deposição e interceptação física de partículas de poeira, aerossóis e de moléculas de odor, além de proporcionar efeito psicológico em função da ocultação da fonte de odor, com a modificação da paisagem (Colletti; Tyndall, 2002). Essas estruturas apresentam também efeitos positivos na segurança patrimonial de construções, assim como na redução de erosão...
Tipo: Livros
Palavras-chave: Cortinamento; Cortina vegetal; Arbusto; Vegetação; Árvore; Paisagismo; Tratamento de Esgoto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133904

Sistemas agroflorestais como estratégia para restauração de ecossistemas florestais.
Provedor de dados: 14
Autores: GUARINO, E. de S. G.; HENZEL, A. B. D.; NORONHA, A.; FOESCH, M. D. S.; WELLER, E.; GOMES, G. C.; SOUSA, L. P. de; MIURA, A. K.
Tipo: Parte de livro
Palavras-chave: Áreas de Proteção Permanente; Reserva Legal; Programas de Regularização Ambiental; Cadastro Ambiental Rural; Agrofloresta; Espécies florestais; Vegetação; Vegetação Nativa; Reserva Florestal; Produção Florestal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129535

A diversidade da criação animal da família Monteiro: Povoado Canafístula, Esperantinópolis, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122902

Guia de bolso: diagnose e manejo de doenças e pragas do cafeeiro na Amazônia.
Provedor de dados: 14
A busca por cultivos de café bem manejados do ponto de vista sanitário é questão essencial. E, em se tratando do ambiente Amazônico, as condições edafoclimáticas (temperatura e pluviosidade média elevadas) constituem-se grande desafio aos cafeicultores e técnicos envolvidos no manejo da cultura, diferindo?se significativamente das demais regiões produtoras Nesse sentido, torna-se premente a correta identificação dos problemas fitossanitários associados à cultura, de forma a facilitar as decisões referentes às necessidades de qual, quando e como realizar o manejo. Objetiva-se assim auxiliar os produtores, técnicos e demais interessados na cultura do cafeeiro, como uma fonte de consulta rápida e portátil, auxiliando a tomada de decisões, por meio de...
Tipo: Livros
Palavras-chave: Coffee plant; Cafezal; Doença de Planta; Praga de Planta; Identificação; Manejo; Pratica Cultural; Plant diseases and disorders; Plant pests; Pathogen identification; Plant cultural practices; Crop management; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125364

Macaúba: processo de extração de óleo de polpa de macaúba por via úmida.
Provedor de dados: 14
Autores: FAVARO, S. P.
Processo de extração de óleo de polpa de macaúba a partir de frutos úmidos, por via aquosa. A tecnologia consiste na mistura da polpa em água seguida da extração do óleo por processo mecânico.
Tipo: Folders
Palavras-chave: Macaúba; Óleo; Extração.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126437

PORTFÓLIO de mudanças climáticas: ciência para a adaptação e sustentabilidade da agricultura brasileira.
Provedor de dados: 14
A Embrapa conta com mais de 40 projetos multidisciplinares organizados no seu portfólio de pesquisas em mudanças climáticas. O trabalho de pesquisa tem contribuído para elevar a capacidade adaptativa dos sistemas de produção agropecuários frente aos cenários de mudanças climáticas e o aperfeiçoamento dos modelos para projeções futuras sobre como a atividade será afetada, com informações úteis para a gestão do risco na agricultura.
Tipo: Folders
Palavras-chave: Mudança Climática; Agricultura Sustentável; Desenvolvimento Sustentável; Fixação de Nitrogênio; Produção de Alimentos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1151377

PLANEJARROZ: a decisão na palma da sua mão.
Provedor de dados: 14
Aplicativo para o planejamento do manejo e estimativa da produtividade em arroz irrigado.
Tipo: Folders
Palavras-chave: Arroz; Arroz Irrigado; Planejamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120038

Euterpe precatoria Mart.: boas práticas de produção na coleta e pós-coleta de açaí-solteiro.
Provedor de dados: 14
Autores: CARTAXO, C. B. da C.; VASCONCELOS, M. A. M. de; PAPA, D. de A.; GONZAGA, D. S. de O. M.; ÁLVARES, V. de S.
Esta publicação aborda informações técnicas sobre a adoção das boas práticas de coleta e pós-coleta de açaí-solteiro (Euterpe precatoria Mart.) de base extrativista, considerando a realidade produtiva do sul da Amazônia Ocidental. Esta publicação contribui para os Objetivos de Desenvolvimento Sustentável 1 (Erradicação da Pobreza), 2 (Fome Zero e Agricultura Sustentável), 8 (Trabalho Decente e Crescimento Econômico), 12 (Consumo e Produção Responsáveis) e 15 (Vida Terrestre). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas.
Tipo: Livros
Palavras-chave: Açaí-solteiro; Prácticas de cultivo vegetal; Boas práticas agrícolas; Buenas prácticas agrícolas; Cosecha; Tecnología postcosecha; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Selo ODS 1; Selo ODS 8; Selo ODS 15; Selo ODS 2; Selo ODS 12; Açaí; Plantio; Pratica Cultural; Colheita; Pós-Colheita; Transferência de Tecnologia; Euterpe precatoria; Plant cultural practices; Good agricultural practices; Harvesting; Postharvest technology; Technology transfer.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130050

Seca-da-mangabeira: prevenção, manejo e controle.
Provedor de dados: 14
Autores: JUNQUEIRA, N. T. V.; SILVA JUNIOR, J. F. da.
Tipo: Folders
Palavras-chave: Mangaba; Praga de Planta; Fungo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131833

Ganho de peso de bovinos nelore em pastagens consorciadas com replantio do estilosantes BRS Bela.
Provedor de dados: 14
Autores: BRAGA, G. J.; RAMOS, A. K. B.; CARVALHO, M. A.; FERNANDES, F. D.; FONSECA, C. E. L. da; FERNANDES, C. D.
Resumo ? O objetivo do estudo foi avaliar o ganho de peso vivo (PV) de bovinos Nelore em pastagens consorciadas da cv. BRS Bela (Stylosanthes guianensis) sob replantio após o desaparecimento da leguminosa da pastagem. O experimento foi conduzido na Embrapa Cerrados em Planaltina, DF, em área de solo Latossolo vermelho argiloso distrófico. As avaliações foram conduzidas em duas fases, entre os anos de 2013 e 2015 (Fase 1) e entre os anos de 2015 e 2018 (Fase 2). O delineamento experimental utilizado foi em blocos ao acaso na Fase 1 e completamente ao acaso na Fase 2. Os tratamentos avaliados na Fase 1 foram Monocultivo (Brachiaria brizantha cv. BRS Paiaguás) e Consórcio 1 (BRS Paiaguás e BRS Bela). Na Fase 2, além de Monocultivo e Consórcio 1, foram...
Tipo: Folhetos
Palavras-chave: Monocultivo; Leguminosa; Proteína Bruta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131615

Captação e armazenamento de água para consumo animal durante a estação de seca na Planície Pantaneira.
Provedor de dados: 14
Autores: OLIVEIRA, M. D. de; SANTOS, S. A.; NOGUEIRA, M.; PALHARES, J. C. P.; COMASTRI FILHO, J. A.; NOGUEIRA, E.; SALES, R. dos S.; CAMPOS, Z.; TOMAS, W. M.
Espera-se que essa publicação venha auxiliar os produtores do Pantanal com as recomendações de práticas sustentáveis para o manejo dos recursos hídricos para uso pela pecuária. Com essas práticas, objetiva-se diminuir a pressão sobre as águas superficiais da Planície Pantaneira, evitar a deterioração da qualidade da água, e dessa maneira contribuir com a conservação dos serviços ecossistêmicos e ambientais.
Tipo: Folhetos
Palavras-chave: Hidrologia; Recurso Hídrico; Manejo de Água; Hydrologic factors.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129229

Detecção de patógenos causadores de enfezamento no estado do Paraná na safrinha 2019.
Provedor de dados: 14
Autores: COTA, L. V.; SILVA, D. D. da; MEIRELLES, W. F.; SOUZA, I. R. P. de; OLIVEIRA, I. R. de; COSTA, R. V. da; MENDES, S. M.
Entre as doenças que incidem na cultura do milho destacam-se os enfezamentos. Eles têm sido doenças preocupantes nas últimas safras, com perdas severas em diversas regiões do país. Em milho, dois sintomas de enfezamento são conhecidos, enfezamento-pálido e enfezamento-vermelho, ocasionados pelo procarionte Spiroplasma kunkelii Whitcomb (Corn stunt spyroplasma) e por Phytoplasma (Maize bushy stunt phytoplasma), respectivamente. Para o adequado manejo dos enfezamentos são imprescindíveis o diagnóstico correto e a identificação do patógeno. Neste trabalho objetivou-se identificar quais patógenos causam enfezamentos em milho no estado do Paraná. Locais com relato de ocorrência de enfezamentos na cultura do milho na safrinha 2019 no Paraná foram visitados para...
Tipo: Folhetos
Palavras-chave: Doença de Planta; Zea Mays; Patógeno.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121325

Identificação de padrões de uso agrícola em imagens orbitais aplicando Geobia e mineração de dados.
Provedor de dados: 14
Autores: ANDRADE, C. C. de; FIDALGO, E. C. C.; FRANCISCO, C. N.
Este trabalho foi desenvolvido com o objetivo de mapear o uso e cobertura da terra na região de Nova Canaã, Mato Grosso, MT, visando identificar padrões para o reconhecimento de sistemas de produção existentes nas áreas agropecuárias. Para tal, foi utilizada a série temporal do período entre 2017 e 2018 das imagens do sensor Sentinel-2, com resolução espacial de 10 metros. Foram empregadas técnicas de análise baseada em objetos e mineração de dados, devido à grande quantidade de dados a serem processados e analisados. Como resultado, foi possível diferenciar as classes de uso e cobertura da terra: agricultura (dois diferentes padrões), pastagem, vegetação natural e água, com exatidão global de mapeamento de 73,5% e estatística Kappa de 0,62. A metodologia...
Tipo: Folhetos
Palavras-chave: Análise de imagem baseada em objetos; Sentinel-2; Sensoriamento Remoto; Uso da Terra; Sistema de Produção; Remote sensing; Land use.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123475

Especies de Passiflora L. para usar como portainjertos
Provedor de dados: 14
Autores: JESUS, O. N. de; LIMA, L. K. S; GIRARDI, E. A.; FALEIRO, F. G.; ROSA, R. C. C.; SOARES, T. L.
Tipo: Parte de livro
Palavras-chave: Porta Enxerto; Maracujá.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124058

É tempo de gerir a água do S. Francisco ou a seca persistirá no sertão.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000997493/e-tempo-de-gerir-a-agua-do-s-francisco-ou-a-seca-persistira-no-sertao.html.
Tipo: Artigo na mídia
Palavras-chave: Transposição de rio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125117

Alternativas para o controle da broca-do-café.
Provedor de dados: 14
Autores: COSTA, J. N. M.
Tipo: Artigo na mídia
Palavras-chave: Café; Doença.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129479

Intensificação agropecuária no cerrado: implantação de sistema ILPF com as culturas do sorgo forrageiro, capim Marandu e eucalipto na região central de Minas Gerais.
Provedor de dados: 14
Autores: BORGHI, E.; GONTIJO NETO, M. M.; RESENDE, A. V. de; SIMÃO, E. de P.; ABREU, S. C.; GIEHL, J.; SANTANA, D. P.; ALVARENGA, R. C.; CAMPANHA, M. M.; RESENDE, R. M. S.
Implementar sistemas de Integração Lavoura-Pecuária-Floresta (ILPF), com a inserção do componente florestal disposto em renques na pastagem, exige mudança de paradigmas ainda presentes na atividade pecuária. Na escolha das espécies deve-se levar em consideração uma série de indicadores técnicos, como a atividade principal da propriedade e as características edafoclimáticas da região de cultivo. Este trabalho teve como finalidade demonstrar uma modalidade de intensificação agropecuária sustentável para a região Central de Minas Gerais, por meio da implantação de um sistema ILPF, a partir do cultivo de sorgo forrageiro consorciado com capim Marandu e, simultaneamente, a introdução do componente florestal. A área experimental de 44 hectares foi dividida em...
Tipo: Livros
Palavras-chave: Integração Lavoura-Pecuária-Floresta; Agricultura de baixo carbono; Sistema de Cultivo; Agricultura Sustentável; Consorciação de Cultura; Silagem; Fertilidade do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126522

PLANEJARROZ: a decisão na palma da sua mão.
Provedor de dados: 14
Aplicativo para o planejamento do manejo e estimativa da produtividade em arroz irrigado.
Tipo: Folders
Palavras-chave: Aplicativo; Arroz; Arroz Irrigado; Planejamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124996

CORONAVÍRUS: chamada do programa especial.
Provedor de dados: 14
Coronavírus: como evitar o contágio.
Tipo: Gravações de som
Palavras-chave: Coronavírus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121625

Software de gestão ambiental da suinocultura: manual do usuário.
Provedor de dados: 14
Autores: NICOLOSO, R. da S.; DALMEDICO, G.; BARROS, E. C.
Tipo: Livros
Palavras-chave: Sustentabilidade; Software; Suinocultura; Produção Animal; Resíduo Orgânico; Preservação da Natureza; Controle Ambiental; Legislação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124868

Processo de oligomerização de lignina kraft via rota biotecnológica com enzima lacase.
Provedor de dados: 14
Autores: MAGALHAES, W. L. E.; CLARO, F. C.; LOMONACO, D.; OLIVEIRA, D. R.; AVELINO, F.
O presente trabalho apresenta um processo de oligomerização de lignina por via da catálise enzimática, visando a geração de novos produtos de alto valor à base de lignina kraft, pela modificação com a enzima lacase.
Tipo: Folhetos
Palavras-chave: Lignina kraft; Lacase; Reação em etanol; Aumento de peso molecular; Oligomerização.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127333

Recomendação de adubação nitrogenada de milho em função do NDVI obtido no agreste do Sealba: primeira aproximação.
Provedor de dados: 14
Autores: PACHECO, E. P.; DOMPIERI, M. H. G.; TEIXEIRA, A. H. de C.
Tipo: Folhetos
Palavras-chave: Milho; Adubo; Nitrogênio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129416

Metodologia de caracterização físico-química de lignina kraft.
Provedor de dados: 14
Autores: VAZ JUNIOR, S.; MAGALHAES, W. L. E.; COLNAGO, L. A.; LEAL, W. G. de O.
A presente Metodologia descreve a aplicação otimizada das técnicas analíticas ATG, BET, 13C-RMN, DSC, FTIR, MEV-EDS, Py-GC-MS e SEC -ELSD na caracterização físico-química de uma amostra de lignina kraft, obtida de híbrido nacional de E. grandis x E. urophylla. Por meio de tais técnicas, foi possível observar as várias propriedades físico-químicas da lignina, de modo a poder avaliar a utilização da mesma como suporte de liberação lenta ou controlada de moléculas bioativas de interesse agrícola. The present Methodology describes the optimized application of the analytical techniques TGA, BET, 13C-NMR, DSC, FTIR, SEM -EDS, Py-GC-MS and SEC-ELSD in the physicochemical characterization of a kraft lignin sample obtained from E. grandis x E. urophylla hybrid...
Tipo: Folhetos
Palavras-chave: Lignina kraft; Liberação controlada; Liberação lenta; Análise termogravimétrica; Análise de área superficial; Calorimetria exploratória diferencial; Cromatografia em fase líquida de exclusão; Cromatografia em fase gasosa; Espectroscopia de absorção no infravermelho; Microscopia eletrônica de varredura; Ressonância magnética nuclear; Lignina; Composição Química; Propriedade Físico-Química; Eucalyptus Grandis; Eucalyptus Urophylla; Lignin; Processing chemistry; Physical chemistry.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123698

O setor moveleiro como parte integrante da cadeia produtiva florestal de florestas plantadas na região de São Bento do Sul em Santa Catarina.
Provedor de dados: 14
Autores: MOREIRA, J. M. M. A. P.; SANTOS FILHO, J. I. dos.
A cadeia produtiva florestal é ampla, apresentando vários elos de produção e, principalmente, de transformação dos produtos oriundos das florestas. Conhecer essa cadeia produtiva, os elos que a compõe e sua inter-relação é fundamental para um melhor planejamento dos seus atores e para a elaboração de políticas públicas e setoriais que aumentem a sua competitividade. O elo da produção de móveis de madeira maciça a partir de florestas plantadas é um importante segmento da cadeia produtiva florestal na região Sul do Brasil. Ele possibilita uma maior diversificação na produção florestal, uma maior agregação de valor e a geração de empregos diretos ao longo da cadeia. Entretanto, poucos são os trabalhos que destacam a participação do setor de produção de móveis...
Tipo: Folhetos
Palavras-chave: Cadeia produtiva florestal; Floresta plantada; Setor moveleiro; Exploração Florestal; Manejo; Madeira; Produção Florestal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124779

Elaboração de silagem biológica com coprodutos de peixes.
Provedor de dados: 14
Autores: YOSHIOKA, E. T. O.; DAMASCENO, L. F.; MARINHO, R. das G. B.; ROCHA, J. D. M.
Comparação entre silagens biológica e química. Elaboração da silagem. Preparo do fermento. Preparo da matéria-prima (coproduto de peixes). Homogeneização dos materiais e produção da silagem.
Tipo: Folhetos
Palavras-chave: Alimento Para Animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127797

Guia de campo da XIII Reunião Brasileira de Classificação e Correlação de Solos: RCC do Maranhão.
Provedor de dados: 14
A XIII Reunião Brasileira de Classificação e Correlação de Solos - RCC do Maranhão; Geologia do estado do Maranhão; Análise integrada das paisagens do estado do Maranhão; Caracterização climática do estado do Maranhão; Caracterização de um perfil de solo e de cerâmicas arqueológicas do Sambaqui de Panaquatira, município de São José de Ribamar, MA; Solos da XIII Reunião Brasileira de Classificação e Correlação de Solos (RCC do Maranhão); Atributos químicos e granulometria dos solos da XIII Reunião Brasileira de Classificação e Correlação de Solos: um enfoque pedológico; Micromorfologia de solos da XIII Reunião Brasileira de Classificação e Correlação de Solos; Mineralogia da fração argila dos solos da XIII Reunião Brasileira de Classificação e Correlação de...
Tipo: Livros
Palavras-chave: Classificação do Solo; Gênese do Solo; Geomorfologia; Geologia; Mineralogia; Análise do Solo; Clima; Soil classification; Soil profiles; Geomorphology; Geology; Soil mineralogy; Soil micromorphology; Soil analysis; Climate.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127220

Efeito do arranjo de plantas e do sistema de cultivo na produtividade da soja em condições ambientais de terras baixas.
Provedor de dados: 14
Autores: AGUILA, L. S. H. D.; COSTA, V. S. da; VASQUES, S. R.; SILVA, S. M. da; VIEIRA, P. A.; SINNEMANN, C.; CAMPOS, A. D. S. de; ÁVILA, A. F.; LEITE, T. M.; SOARES, V. de A.; ALVES, A. C. de O.; ALVES, B. R. S.
Os planossolos das terras baixas do Rio Grande do Sul caracterizam-se por apresentar horizonte A superficial e horizonte B com capacidade de percolação muito baixa, o que provoca longos períodos de encharcamento após chuvas e prejudica o desenvolvimento e a produtividade da soja. Para evitar esses problemas, são necessários sistemas de drenagem adequados e o aprimoramento de sistemas de preparo do solo e de cultivo que proporcionem condições mais secas na lavoura. O presente trabalho teve por ob-jetivo determinar o arranjo espacial de plantas e o sistema de cultivo de soja mais adequado para as terras baixas do Rio Grande do Sul. Dois experimentos foram conduzidos na Estação Experimental Terras Baixas da Embrapa Clima Temperado, em Capão do Leão, RS. O...
Tipo: Folhetos
Palavras-chave: Soja; Solo Hidromórfico; Drenagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126890

Histórico e desafios da pecuária bovina na Amazônia.
Provedor de dados: 14
Autores: DIAS-FILHO, M. B.; LOPES, M. J. dos S.
A expectativa é que este texto forneça uma nova visão sobre essa área do conhecimento, muitas vezes mal compreendida. Espera-se, também, que as informações aqui apresentadas subsidiem positivamente as decisões de investimento em pesquisa agropecuária e as políticas públicas referentes à pecuária bovina desenvolvida na Amazônia brasileira.
Tipo: Folhetos
Palavras-chave: Pecuária; Abastecimento; Historia; Bovino; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122941

Sistema de inteligência territorial estratégica para aquicultura.
Provedor de dados: 14
Autores: UMMUS, M. E.; ROUTLEDGE, E. A. B.; MUNOZ, A. E. P.; EVANGELISTA, B. A.
A criação do Sistema de Inteligência Territorial Estratégica para Aquicultura no Brasil (SITE Aquicultura), adotando ferramentas e conceitos de análise espacial e propondo indicadores socioeconômicos, atende à necessidade premente de monitoramento dessa cadeia produtiva. Além disso, pode fornecer subsídios técnicos para o entendimento da configuração geográfica da atividade aquícola. Sob coordenação da Embrapa Pesca e Aquicultura, conta com diversos parceiros e três diferentes financiadores. Um deles é o Projeto Integrado da Amazônia, série de projetos que a Embrapa lidera dentro do Fundo Amazônia, que conta com recursos internacionais doados por alguns países e operacionalizados pelo Banco Nacional de Desenvolvimento Econômico e Social (BNDES), em...
Tipo: Fascículos de periódicos
Palavras-chave: Aquicultura; Sistema de Informação Geográfica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128746

Técnicas nanotecnológicas para a agricultura e pecuária - um enfoque em controle de pragas e doenças, nutrição e saúde animal.
Provedor de dados: 14
Autores: CAVIGLIONI, M. de B. C.
A nanotecnologia com seus nanomateriais e nanoestruturas representam uma alternativa promissora de desenvolvimento científico, onde novos produtos podem oferecer uma variedade muito grande de benefícios para a sociedade. Nesta ciência do ?invisível?, saindo da macroescala para a nanoescala, descrever e controlar um comportamento sui generis como é o comportamento de diversas estruturas nanométricas é a força motriz para entender a melhor forma de usá-las em nanotecnologias para o agronegócio. Na nanoescala os materiais tendem a apresentar propriedades muito especiais ao interagir com uma fonte de luz e, como possuem alta relação superfície/volume, a reatividade química é muito elevada e o ponto de fusão é bem mais baixo, por exemplo. Com base nessas...
Tipo: Livros
Palavras-chave: Nanopesticida; Agroquímico nanoencapsulado; Nanomineriais; Nanoformulação; Agronegócio; Biotecnologia; Microscopia Eletrônica; Produção Agrícola; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120123

BRS COMO produzir maracujá o ano todo: programa 6: Norte.
Provedor de dados: 14
O Prosa Rural desta semana vai mostrar que é possível produzir maracujá o ano todo. O pesquisador da Embrapa Acre Romeu Andrade Neto apresenta diversas técnicas que permitem aos produtores produzir o maracujá nas duas estações amazônicas – de inverno a verão. O programa traz ainda duas cultivares de maracujá amarelo, que associadas às técnicas, têm tudo para garantir qualidade com alta produtividade. São a BRS Gigante Amarelo e a BRS Sol do Cerrado, ambas desenvolvidas pela Embrapa Cerrados
Tipo: Gravações de som
Palavras-chave: Maracujá; Cultura de Inverno; Cultura de Verão; Produtividade; Produtor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120735

Lignina frente a fungos apodrecedores de madeira.
Provedor de dados: 14
Autores: LOURENÇON, T. V.; MAGALHAES, W. L. E.
A lignina é um dos principais cons- tituintes da madeira e também está presente em diversos vegetais, em quantidades que variam bastante. Na madeira estão presentes também com- ponentes majoritários como celulose e hemicelulose, somados a componentes não estruturais conhecidos como extra- tivos e compostos inorgânicos. A lignina é o material aromático renovável mais abundante na Terra e o segundo polímero orgânico mais abundante depois da celulose (Hatakka, 2001). Além disso, é conhecida por sua estrutura amorfa tridimensional, consti- tuída por unidades fenilpropano metoxi- ladas (Chakar; Ragauskas, 2004). Segundo Gellerstedt e Henriksson (2008), a lignina apresenta uma estrutura altamente irregular em comparação com a da celulose. Também é conhecida por...
Tipo: Folhetos
Palavras-chave: Polímero; Bioativo; Lignina; Celulose; Madeira; Eucalipto; Fungo; Lignin.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125508

BOAS práticas de fabricação de queijo coalho: programa 26: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana você vai descobrir o que é preciso para garantir uma boa qualidade na produção do queijo coalho. Tudo começa com as boas práticas de fabricação. Elas são essenciais, pois quanto maior o cuidado com a higiene, menor a contaminação por micróbios, o que garante maior tempo de vida útil dos queijos artesanais, maior segurança e saúde para o consumidor. Além disso, o processamento adequado do leite durante a fabricação, gera mais rendimento de queijo, proporcionando maior renda para o produtor familiar. Participa do programa a pesquisadora Karina Neoob, da Embrapa Tabuleiros Costeiros.
Tipo: Gravações de som
Palavras-chave: Queijo coalho; Queijo; Contaminação; Consumidor; Leite; Processamento; Produtor; Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123586

Pimentão.
Provedor de dados: 14
Autores: ARAUJO, S. M. B.; CHENG, S. S.; VIÉGAS, I. de J. M.; GUSMÃO, S. A. L.
Tipo: Parte de livro
Palavras-chave: Pimentão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127302

Variação geográfica das áreas de pastagem no Brasil nas últimas décadas.
Provedor de dados: 14
Autores: LANDAU, E. C.; RESENDE, R. M. S.; MATOS NETO, F. da C.
Boletim Cicarne.
Tipo: Folhetos
Palavras-chave: Georreferenciamento; Bovino; Pastagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128445

Mercado de defensivos agrícolas no Brasil.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000980584/mercado-de-defensivos-agricolas-no-brasil.html.
Tipo: Artigo na mídia
Palavras-chave: Agroquímicos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129604

Banana 'Maçã Capixaba': cultivar de bananeira suscetível ao mal do panamá, no Amazonas e em Roraima.
Provedor de dados: 14
Autores: GASPAROTTO, L.; SCHURT, D. A.; ROCHA, R. N. C. da; RIBEIRO, M. M.; SILVA, V. C. da; PEREIRA, M. C. N.
O objetivo deste estudo foi avaliar a reação de plantas de banana 'Maçã Capixaba' inoculadas com F. oxysporum f. sp. cubense, nos estados do Amazonas e de Roraima.
Tipo: Folhetos
Palavras-chave: Banana; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124040

Julho de 2020 teve pouca chuva e temperaturasacimadas médias na região da Grande Dourados.
Provedor de dados: 14
Autores: FIETZ, C. R.; COMUNELLO, E.; FLUMIGNAN, D. L.
Tipo: Folhetos
Palavras-chave: Agrometeorologia; Mato Grosso do Sul; Brasil; Agricultura; Clima; Meteorologia; Agrometeorology; Meteorology; Agriculture; Climate.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124204

Sistemas de criação de pirarucu: tanques móveis.
Provedor de dados: 14
Autores: FARIA, M. T. de; TEIXEIRA, R. N. G.
1 folder.
Tipo: Folders
Palavras-chave: Pirarucu; Método de Criação; Criação Intensiva; Tanque.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127728

A roça agroecológica da família de dona Sibá e seu João Valdeci: Centrinho do Acrísio, Lago do Junco, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122852

Sustainable Processing Innovations for Foods.
Provedor de dados: 14
Autores: AGUILAR, C. N.; CABRAL, L. M. C.; JAUREGI, P.
Editorial Article.
Tipo: Artigo de periódico
Palavras-chave: Sustainable food processing; Fruit waste; Probiotic; Food by-product.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123080

Consórcio de cana-de-açúcar com milho: recomendações de manejo para a região do Cerrado.
Provedor de dados: 14
Autores: SANTOS JUNIOR, J. de D. G. dos; SOUZA, K. W. de; RAMOS, N. P.; SILVA, C. J. da; CORREIA, N. M.; MAY, A.; KINPARA, D. I.
Na presente publicação, recomenda-se a integração de cana-de-açúcar com milho visando à otimização da logística de plantio tanto da cana-de-açúcar quanto da cultura do milho. Isso pode aumentar o potencial produtivo da cana- de-açúcar plantada no início do período chuvoso, ao mesmo tempo que intensifica a produção de milho em áreas já ocupadas por cana solteira. Considerando que a cana-de-açúcar ocorre em ciclos que variam em média de cinco a seis cortes, a janela de oportunidade para esta integração ocorre, principalmente, na renovação/plantio, que é escalonado em função dos recursos disponíveis, principalmente parque de máquinas e mão-de-obra. Cabe destacar que esse período coincide com a ociosidade industrial que poderia ser reduzida com o uso de...
Tipo: Folhetos
Palavras-chave: Cana de Açúcar; Milho; Plantio; Espaçamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127456

Hortaliça como comprar, conservar e consumir: melancia.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Melancia. Como comprar. Como conservar. Como consumir. Mousse de melancia. Salpicão de melancia.
Tipo: Folders
Palavras-chave: Melancia; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125920

Podridões em raízes de mandioca: problemas e soluções para o seu controle.
Provedor de dados: 14
Autores: ALVES, R. N. B.; MODESTO JUNIOR, M. de S.; SILVA, A. R. B. e; NAKASONE, A. K.; FARIAS NETO, J. T. de.
O objetivo deste trabalho foi apresentar de modo simples e objetivo medidas para superação dos principais fatores relacionados com a ocorrência das podridões das raízes da mandioca.
Tipo: Folhetos
Palavras-chave: Mandioca; Manihot Esculenta; Doença de Planta; Podridão da Raiz.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123803

Contaminação de solos em vinhedos e pomares: valores de referência no solo e em plantas e estratégias de mitigação.
Provedor de dados: 14
Autores: MARQUES, A. C. R.; TIECHER, T. L.; CONTI, L. de; SILVA, I. C. B. S.; TRENTIN, E.; MARCHEZAN, C.; MIOTTO, A.; GIROTTO, E.; FERREIRA, P. A. A.; LOURENZI, C. R.; MELO, G. W. B. de; CERETTA, C. A.; BRUNETTO, G.
As frequentes aplicações de fungicidas com Cu ou Zn em pomares e vinhedos têm levado ao acúmulo desses metais nos solos. Embora essenciais em processos fisiológicos de plantas, o excesso desses metais pesados no solo e nos tecidos vegetais pode provocar fitotoxidez. Plantas de videiras jovens apresentaram redução de 50% no rendimento relativo da produção de matéria seca da parte aérea com teores disponíveis de 37 mg Cu kt no solo, e diminuição de 25% no rendimento relativo da parte aérea de plantas de aveia preta na presença de teores de Cu disponível no solo de 42 mg Cu kg'. No caso do Zn, há relato de diminuição de 50% no rendimento relativo da produção de matéria seca e videiras jovens em solo com teores disponíveis de Zn de 116,5 mg kg·1. Entretanto,...
Tipo: Parte de livro
Palavras-chave: Contaminação de solo; Micorrízas; Fitorremediação; Cobre; Zinco; Calagem; Composto Orgânico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1144652

Ordenha e boas práticas de produção.
Provedor de dados: 14
Autores: DIAS, J. A.; BELOTI, V.; OLIVEIRA, A. M. de.
Considerando a importância da adoção de práticas adequadas para minimizar a contaminação do leite cru e garantir a qualidade da matéria-prima e seus derivados, este capítulo irá abordar os principais aspectos da ordenha e das boas práticas de produção.
Tipo: Parte de livro
Palavras-chave: Good production practices; Gado Leiteiro; Produção Leiteira; Qualidade; Pratica Cultural; Ordenha; Transferência de Tecnologia; Dairy cattle; Milk production; Milk quality; Milking; Technology transfer; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126174

Manejo conservacionista e qualidade do solo.
Provedor de dados: 14
Autores: PILLON, C. N.; ÁVILA, M. R. de.
Tipo: Parte de livro
Palavras-chave: Solo; Manejo do Solo; Qualidade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129525

BRS FS307: cultivar de feijão-comum com grão mulatinho para o Nordeste.
Provedor de dados: 14
Autores: FARIA, L. C. de; MELO, L. C.; PEREIRA, H. S.; SOUZA, T. L. P. O. de; CARVALHO, H. W. L. de; COSTA, A. F. da; AGUIAR, M. S. de; WENDLAND, A.; MAGALDI, M. C. de S.; CABRERA DIAZ, J. L.; COSTA, J. G. C. da; SOUZA, N. P. de.
BRS FS307 originou-se do cruzamento entre as linhagens CNFM 8080 e BRS Marfim, realizado em 2004, na Embrapa Arroz e Feijão, em Santo Antônio de Goiás, GO. BRS FS307 se destaca pelos grãos do tipo mulatinho, além da maior produtividade quando comparada às cultivares BRS Agreste e BRS Marfim, apresentando qualidade de grão superior e moderada resistência à antracnose e à murcha de Fusarium, importantes doenças no contexto regional
Tipo: Folhetos
Palavras-chave: Nordeste; Cultivar BRS FS307; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade; Beans; Plant breeding.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121309

Balanço social 2019.
Provedor de dados: 14
Autores: EMBRAPA. Secretaria de Desenvolvimento Institucional.
O Balanço Social da Embrapa já está em seu 23 ano, e esta edição é mais um exemplo da seriedade com que esses desafios e essa necessidade de mudança vêm sendo tratados pelo seu corpo técnico e gerencial, ao apresentar uma série de inovações promovidas pela Empresa no ano de 2019. Entre elas, a identificação de bactérias capazes de tornar solúvel o fósforo do solo para cultivos de milho, soja e algodão; o aperfeiçoamento de um sistema integrado de produção de alimentos, conhecido como Sisteminha, que permite, em um hectare, produzir peixes, ovos, frangos, hortaliças e frutas suficientes para alimentar uma família; o sequenciamento do genoma do tambaqui, que levou à produção de alevinos de qualidade; a uva sem sementes "BRS Vitória", que viabilizou a...
Tipo: Folhetos
Palavras-chave: Produção científica; Empresa Publica; Pesquisa Agrícola; Inovação; Políticas Públicas; Produção Animal; Produção Vegetal; Tecnologia Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121832

Hortaliça não é só salada. Peixe.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com peixe. Salada de salmão com batata e rúcula. Filé de linguado com agrião e alho-porró. Gratinado de chuchu com sardinha da Nadir.
Tipo: Folders
Palavras-chave: Culinária; Peixe; Hortaliça.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129100

Guia de uso da Planilha de Campo Digital da Produção Integrada de Uva para Processamento (PIUP).
Provedor de dados: 14
Autores: FIALHO, F. B.; SILVEIRA, S. V. da; BARROS, F. A. F.; GARRIDO, L. da R.; LOPES, P. R. C.; GUERRA, C. C.; BOTTON, M.; VARGAS, L.; CONCEIÇÃO, M. A. F.
Este guia orienta como utilizar o Caderno de campo digital da Produção Integrada de Uva para Processamento (PIUP), em formato de planilha, que facilita a manutenção dos registros e o seu armazenamento em meio digital, mantendo controle sobre tudo o que acontece no vinhedo, de modo a permitir a rastreabilidade da uva. Palavras-chave: Uva; Certificação; planilha; Rastreabilidade; PIUP; Caderno de campo; Produção Integrada de Uva para Processamento.
Tipo: Folhetos
Palavras-chave: Produção Integrada de Uva para Processamento; Certificação; Caderno de campo; Planilha; Rastreabilidade; PIUP; Uva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123406

Escala de notas inespecíficas para seleção de plantas de mandioca resistentes a doenças foliares.
Provedor de dados: 14
Autores: OLIVEIRA, S. A. S. de; DIAMANTINO, M. S. A. S.; DINIZ, R. P.; OLIVEIRA, E. J. de.
Tipo: Folhetos
Palavras-chave: Mandioca.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124859

Florescimento e viabilidade do pólen de Astrocaryum acaule Mart. na Amazônia Ocidental.
Provedor de dados: 14
Autores: ANDRADE, J. de S. S.
Os objetivos deste trabalho foram estudar o florescimento, viabilidade polínica e definir um método eficiente para coleta e armazenamento de pólen.
Tipo: Teses
Palavras-chave: Polinização controlada; Astrocaryum acaule; Hibridação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1138063

PORTFÓLIO de sanidade animal: saúde animal e segurança dos alimentos são estratégias para a produção de carnes, leite e ovos.
Provedor de dados: 14
A atuação do Portfólio de sanidade animal considera três vertentes: doenças transmitidas por alimentos (DTAs) ou segurança dos alimentos de origem animal; doenças de importância estratégica para o sistema de defesa sanitária; doenças responsáveis por prejuízos na produção animal, considerando as diversas cadeias produtivas. O propósito é proteger a produção e a competitividade das cadeias produtivas de carne bovina, leite e derivados, suínos, aves (frango), caprinos, ovinos, equinos, bubalinos, ovos e do mel.
Tipo: Folders
Palavras-chave: Saúde animal; Segurança Alimentar; Produção de Carne; Produção Leiteira; Ovo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1151370

BRS GUARAÇÁ: porta-enxerto resistente ao nematoide-das-galhas da goiabeira: programa 29: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana, o Prosa Rural traz como tema a cultivar BRS Guaraçá, um porta-enxerto de goiabeira, resistente a nematóide. Essa cultivar é considerada a primeira tecnologia eficiente para o controle do nematoide-das-galhas, o principal desafio da cultura da goiaba no país. A cultivar BRS Guaraçá é uma planta híbrida, que mistura características de goiabeira e de araçazeiro, para ser utilizada como porta-enxerto. O convidado do programa para falar sobre o assunto é o pesquisador Carlos Antônio Fernandes dos Santos, da Embrapa Semiárido.
Tipo: Gravações de som
Palavras-chave: Planta híbrida; Goiaba; Nematóide; Porta Enxerto; Araçá; Tecnologia; Guavas; Nematode control; Rootstocks; Technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124116

Agricultura brasileira valoriza longa relação com mundo árabe.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000990377/agricultura-brasileira-valoriza-longa-relacao-com-mundo-arabe.html.
Tipo: Artigo na mídia
Palavras-chave: Agricultura; Historia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123170

Eficiência de fungicidas para controle de mofo-branco (Sclerotinia sclerotiorum) em soja, na safra 2019/2020: resultados sumarizados dos experimentos cooperativos.
Provedor de dados: 14
Autores: MEYER, M. C.; CAMPOS, H. D.; GODOY, C. V.; UTIAMADA, C. M.; SATO, L. N.; DIAS, A. R.; JACCOUD FILHO, D. de S.; NUNES JUNIOR, J.; LOBO JUNIOR, M.; BRUSTOLIN, R.; GALDINO, J. V.; MEDEIROS, F. C. L. de; OLIVEIRA, M. C. N. de.
Tipo: Folhetos
Palavras-chave: Fungicida; Mofo Branco; Safra; Soja; Soybeans; Fungicides; Sclerotinia sclerotiorum debilitation-associated RNA virus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126492

Hortaliça não é só salada. Obesidade.
Provedor de dados: 14
Autores: FRANZ, R. S.; LANA, M. M.
O que são sobrepeso e obesidade? Sobrepeso, obesidade e dieta. Quais hortaliças podem ser consumidas por pessoas com sobrepeso e obesidade? Quais formas de preparo de hortaliças devem ser evitadas por pessoas com sobrepeso e obesidade? Trocas alimentares inteligentes para pessoas com sobrepeso e obesidade. Dica de receita do site hortaliça não é só salada.
Tipo: Folders
Palavras-chave: Habito Alimentar; Saúde; Hortaliça.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128998

Macaúba: produção de mudas de macaúba em sistema simplificado.
Provedor de dados: 14
Autores: FAVARO, S. P.
Processo simplificado de produção de mudas de macaúba diretamente em viveiro, com sementes pré-germinadas.
Tipo: Folders
Palavras-chave: Macaúba; Semente; Muda; Viveiro; Cadeia Produtiva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124862

COMO produzir uva em casa: programa 15: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana ensina você a produzir uva em casa. Sim, se você tem um espaço no seu quintal e sempre sonhou em colher suas próprias uvas, é só acompanhar o Prosa Rural e começar a sua produção! Como escolher o tipo de uva, tudo sobre a muda, como cuidar das plantas e muito mais, você confere nesta edição. Quem traz as informações é o engenheiro agrônomo Rodrigo Monteiro. Ele trabalha na Embrapa Uva e Vinho, em Bento Gonçalves.
Tipo: Gravações de som
Palavras-chave: Uva; Muda; Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121998

Agentes gelificantes alternativos na micropropagação de bananeira cv. Prata Catarina.
Provedor de dados: 14
Autores: SANTOS, H. M. G. dos; CARVALHO, A. C. P. P. de; SCHNEIDER, F.; ROSSETTI, A. G.; CAMPOS, A. S.
O ágar é o gelificante mais utilizado no preparo de meios de cultivo semissólidos na micropropagação vegetal. Porém, por ser um dos componentes de maior custo, agentes gelificantes alternativos vêm sendo prospectados, razão do objetivo deste trabalho ter sido avaliar o desempenho de mudas micropropagadas de ananeira, cv. Prata Cataria, na fase de alongamento e enraizamento, em meio de cultivo MS contendo diferentes gelificantes alternativos, tais como sagu, fécula de mandioca e amido de milho, produtos encontrados em supermercados. Agar is the most widely used gelling agent in the preparation of semi-solid culture media in plant micropropagation. However, because it is one of the most costly components, alternative gelling agents have been prospecting. The...
Tipo: Folhetos
Palavras-chave: Agentes gelificantes; Meio de cultivo; Bananeira; Fécula de mandioca; Amido de milho; Maize starch; Culture medium; Musa sp; Micropropagação; Cassava starch; Gelling agents.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125505

Hortaliça como comprar, conservar e consumir: ervilha.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Ervilha. Como comprar. Como conservar. Como consumir. Ervilha-torta reforgada. Ervilha com frango.
Tipo: Folders
Palavras-chave: Ervilha; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125878

Carbono no solo, mudança do clima e segurança alimentar.
Provedor de dados: 14
Autores: MADARI, B. E.
O reconhecimento dos solos como solução para a mitigação da mudança do clima também coloca a agricultura sob nova lente no contexto das mudanças climáticas, criando oportunidades e incentivos para o desenvolvimento e uso de boas práticas que almejam sustentabilidade ambiental, social e econômica, focando, como objetivo maior, a segurança alimentar e o bem-estar da humanidade.
Tipo: Folhetos
Palavras-chave: Solo; Carbono; Segurança Alimentar; Clima; Pedologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128582

Vascularização luteal e diagnóstico de gestação precoce em ovinos.
Provedor de dados: 14
Autores: SANTOS, L. M.; BRILHANTE, G. C.; DRECHMER, J.; MELO, L. A. M. P. de; RAMOS, A. F.; SILVA, B. D. M.
Tipo: Folhetos
Palavras-chave: Transferência de embrião em tempo fixo; Ovinocultura; Reprodução Animal; Prenhez; Ovulação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123299

Estrutura diamétrica e padrão de crescimento de Hymenolobium excelsum em floresta primária, na microrregião de Sinop, MT.
Provedor de dados: 14
Autores: CANETTI, A.; BRAZ, E. M.; MATTOS, P. P. de; FIGUEIREDO FILHO, A.; BASSO, R. O.
O objetivo desse trabalho foi caracterizar a estrutura diamétrica e o padrão de crescimento de H. excelsum, visando subsidiar o planejamento do manejo sustentável dessa espécie. Hymenolobium excelsum apresenta máxima concentração de árvores na classe diamétrica de 45 cm. O incremento diamétrico apresenta grande amplitude de variação, indicando potencial para o aumento do incremento médio mediante manejo florestal. A espécie possui redução gradual de sobrevivência nas classes diamétricas maiores.
Tipo: Folhetos
Palavras-chave: Hymenolobium excelsum; Dendrocronologia; Exploração Florestal; Madeira; Angelim; Espécie Nativa; Produção; Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125745

Qualidade do leite na Amazônia.
Provedor de dados: 14
Autores: DIAS, J. A.; SOUZA, G. N. de; GREGO, C. R.
Este capítulo objetiva apresentar as normativas vigentes, os principais avanços e desafios para melhoria da qualidade do leite e a situação epidemiológica dos indicadores higiênico-sanitários do leite da região, a fim de subsidiar a definição de estratégias para melhoria da qualidade e seguridade do leite produzido na Amazônia.
Tipo: Parte de livro
Palavras-chave: Produção Leiteira; Cadeia Produtiva; Controle de Qualidade; Legislação; Milk production; Supply chain; Milk quality; Food law; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126173

COMO diminuir prejuízos causados por javalis: programa 48: Norte.
Provedor de dados: 14
O Prosa Rural desta semana, diante da invasão de javalis que assola o Brasil, faz um alerta ao produtor, explicando como é possível diminuir os prejuízos causados por este animal, que não faz parte de nossa fauna e traz inúmeros riscos, inclusive à saúde humana. Como convidadas do programa, a pesquisadora Virgínia Santiago Silva, da Embrapa Suínos e Aves, que lidera o Projeto Javali, em parceria com diversas instituições; e a médica veterinária Juliana Junqueira do Ibama, que fala sobre o manejo do javali.
Tipo: Gravações de som
Palavras-chave: Fauna Silvestre; Javali; Produtor; Boars.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127314

2020 já é o melhor ano da história para produtores de arroz.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000997935/2020-ja-e-o-melhor-ano-da-historia-para-produtores-de-arroz.html.
Tipo: Artigo na mídia
Palavras-chave: Rizicultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125120

Triticale BRS Surubim: genética de rendimento.
Provedor de dados: 14
Autores: BASSOI, M. C.; NASCIMENTO JUNIOR, A. do.
2. ed.
Tipo: Folders
Palavras-chave: Triticale; Variedade; Cultivars.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124077

REPRISE: importância da adubação orgânica na implantação de vinhedos: programa 13: Sul.
Provedor de dados: 14
O Prosa Rural desta semana apresenta a importância da adubação orgânica na implantação de vinhedos. A transformação dos resíduos orgânicos por meio da compostagem resulta em um produto com grande potencial para ser usado com adubo para as plantas. Neste programa você vai conhecer as principais recomendações para o aproveitamento dos resíduos orgânicos das atividades vitivinícolas. E o pesquisador George Wellington, da Embrapa Uva e Vinho, dá mais detalhes sobre esse tipo de adubação
Tipo: Gravações de som
Palavras-chave: Adubação; Compostagem; Resíduo Orgânico; Uva; Viticultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121515

Hortaliça não é só salada. Farofa.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com farofa. Farofa crua de tomate. Farofa de vagem com tomate. Farofa de ovo com cenoura.
Tipo: Folders
Palavras-chave: Hortaliça; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129068

Efeito de Adubação Anual com Nitrogênio e Fósforo no Desempenho Produtivo de Bovinos em Recria em Urochloa decumbens cv. Basilisk.
Provedor de dados: 14
Autores: VILELA, L.; MARTHA JUNIOR, G. B.; SOUSA, D. M. G. de.
Resumo? Este experimento teve por objetivo avaliar o efeito da adubação anual com nitrogênio (N; 60 kg N/ha ou 90 kg N/ha) e fósforo na recuperação da produtividade animal e de forragem de uma pastagem de Urochloa decumbens cv. Basilisk (sin. Brachiaria decumbens). Os tratamentos foram constituídos de doses de fósforo (20 kg/ha ou 40 kg/ha P2O5) e fontes de N ? ureia, sulfato de amônio e mistura 2/3 de N-ureia + 1/3 de N-sulfato de amônio e uma testemunha, sem adubação com N ou P. Na média dos tratamentos adubados, o aumento percentual na taxa de lotação e no ganho de peso por hectare em relação à testemunha foi de, respectivamente, 66% e 8,4%. As doses de fósforo aplicadas, 20 kg/ha/ano e 40 kg/ha/ano de P2O5 com ureia, proporcionaram aumentos semelhantes...
Tipo: Folhetos
Palavras-chave: Adubação nitrogenada; Produtividade animal; Planta Oleaginosa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130775

Biomassa e estoque de carbono em árvores de eucalipto em sistemas integrados de produção pecuária.
Provedor de dados: 14
Autores: PEZZOPANE, J. R. M.; BOSI, C.; BERNARDI, A. C. de C.; MULLER, M. D.; OLIVEIRA, P. P. A.
A pecuária tem sido associada à emissão de gases de efeito estufa (GEE), sendo este o setor do agronegócio responsável pela maior emissão, especialmente o metano entérico. Para mitigar esse problema tem sido propostos sistemas de produção baseados em pastagens recuperadas e/ou com capacidade de aumento dos estoques de carbono (C) do solo e diminuição da pegada de C (OLIVEIRA, 2015; FIGUEIREDO et al., 2017).
Tipo: Parte de livro
Palavras-chave: Gases de efeito estufa; Integração Lavoura Pecuária Floresta; Integração Lavoura Pecuária; Mitigação e emissão GEE; Sistemas agrossilvipastoris; Estoque de biomassa; Estoques de C; ILPF.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131370

Manual de editoração da Embrapa.
Provedor de dados: 14
Autores: EMBRAPA.
A Embrapa apresenta a quarta edição atualizada e ampliada do Manual de Editoração. Entre as novidades, esta versão traz informações sobre livro digital (e-book), tendo em vista o lançamento em 2012 pela Embrapa dos seus primeiros livros digitais, em formato ePub - formato de livro digital, aberto, bastante recomendado para a edição de e-books. Traz, também, conceitos e normas editoriais, linhas e produtos editoriais, estrutura do livro impresso, digital e fôlder, padronização e estilo, recomendações para fechamento de arquivos, gramática e ortografia, direitos autorais e instruções básicas para autores e CLPs.
Tipo: Livros
Palavras-chave: Fluxo editorial; Editoração; Produção editorial; Publicação eletrônica; Normalização.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125210

Balanço de carbono e dinâmica de gases de efeito estufa em sistemas de Integração Lavoura-Pecuária no Cerrado.
Provedor de dados: 14
Autores: MARCHAO, R. L.; CARVALHO, A. M. de; OLIVEIRA, A. D. de; VILELA, L.; MACIEL, G. A.; SATO, J. H.; FIGUEIREDO, C. C. de; ALVES, B. J. R.
Tipo: Parte de livro
Palavras-chave: Forragem; Gramínea Forrageira; Milho; Integração.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1146973

Eficiência de fungicidas no controle múltiplo de doenças foliares do milho: segunda safra 2020.
Provedor de dados: 14
Tipo: Folhetos
Palavras-chave: Doença foliar; Zea Mays; Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1141334

Challenges to cattle ranching in the Brazilian Amazon.
Provedor de dados: 14
Autores: DIAS FILHO, M. B.; LOPES, M. J. dos S.
The purpose of this paper is to summarize the challenges and evolution of cattle ranching in the Brazilian Amazon, including their historical beginning. Emphasis is placed on the role of Embrapa in generating improved pasture technology and fostering its adoption by ranchers.
Tipo: Folhetos
Palavras-chave: Pecuária; Gado; Pastagem; Desenvolvimento Sustentável; Historia; Livestock; Environmental sustainability; Pasture management; Cattle.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122768

Ácido kójico: produção de ácido kójico a partir de glicerina.
Provedor de dados: 14
Autores: DAMASO, M. C. T.
Tipo: Folders
Palavras-chave: Fermentação submersa; Biotecnologia industrial.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123222

Impactos da deficiência hídrica na produtividade da soja no estado do Rio Grande do Sul, safra 2019/2020
Provedor de dados: 14
Autores: GONCALVES, S. L.; FARIAS, J. R. B.; SIBALDELLI, R. N. R.
Tipo: Folhetos
Palavras-chave: Soja; Resistência a Seca; Soybeans; Drying temperature.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129442

Biocombustíveis convencionais sustentáveis.
Provedor de dados: 14
Autores: MORANDI, M. A. B.
Resumo: A descarbonização do setor de transportes é desafiadora. Na maior parte dos países, a redução das emissões no setor elétrico não tem sido acompanhada pelo setor de transportes. Nesse contexto, é importante promover concomitantemente soluções complementares de curto, médio e longo prazos. Biocombustíveis convencionais sustentáveis são uma das poucas opções para promover significativa mudança no padrão de emissões da frota existente. A experiência brasileira com o etanol de cana-de-açúcar serve de exemplo.
Tipo: Artigo na mídia
Palavras-chave: Biocombustível.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129502

Adaptação de metodologia para criopreservação de esporos de Fungos Micorrízicos Arbusculares.
Provedor de dados: 14
Autores: SANTIAGO, F. L. de A.; BARBOSA, M. V.; CARNEIRO, M. A. C.; SAGGIN JUNIOR, O. J.
Nas coleções de Fungos Micorrízicos Arbusculares (FMAs) a criopreservação é restrita, pois devido ao grande tamanho e conteúdo líquido dos esporos, eles são mortos pelo congelamento. Poucos estudos mostram sucesso na criopreservação de FMAs, utilizando condições bastante caras e inacessíveis à maioria das coleções. O objetivo desse estudo foi avaliar adaptações aos protocolos de criopreservação, para utilização nas condições e equipamentos disponíveis na maioria das instituições de pesquisa nacionais. Foi testado o efeito do encapsulamento em alginato de sódio sobre a germinação dos esporos de quatro espécies de FMAs (Rhizophagus clarus, Dentiscutata heterogama; Acaulospora morrowiae e Gigaspora margarita) e, com a espécie que apresentou maior taxa de...
Tipo: Folhetos
Palavras-chave: Coleção biológica; Preservação de germoplasma; Crioprotetores; Congelamento; Glomeromycota.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126137

Seleção de clones de batata para rendimento de tubérculos.
Provedor de dados: 14
Autores: SILVA, G. O. da; PEREIRA, A. da S.; CARVALHO, A. D. F. de; AZEVEDO, F. Q.; HIRANO, E.; BORTOLETTO, A. C.
O objetivo do presente trabalho foi verificar o desempenho de clones de batata quanto a caracteres relacionados ao rendimento de tubérculos, em comparação com cultivares utilizadas em grande escala no Brasil. O experimento foi conduzido no campo experimental da Estação Experimental da Embrapa em Canoinhas-SC.
Tipo: Folhetos
Palavras-chave: Tubérculo; Solanum Tuberosum; Rendimento; Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124345

Uso de reguladores vegetais para intensificar e distribuir a cor de uvas de mesa cultivadas em regiões subtropicais.
Provedor de dados: 14
Autores: SOUZA, R. T. de; ROBERTO, S. R.; KOYAMA, R.; SHAHAB, M.
A publicação apresenta recomendações técnicas para a garantia de intensificação e melhor distribuição da cor em bagas de cultivares de uvas de mesa em regiões subtropicais, com o uso do regulador vegetal S-ABA. São apresentadas todas as recomendações relacionadas ao uso como período, reaplicação e dosagem para as cultivares BRS Melodia, Benitaka e Rubi.
Tipo: Folhetos
Palavras-chave: Cultivar BRS Melodia; Cultivar Benitaka; Cultivar Rubi; Coloração de bagas da videira; Ácido abscísico (ABA); Regulador vegetal S-ABA.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128292

Caracterização das condições climáticas na Amazônia.
Provedor de dados: 14
Autores: ORELLANA, J. B. P.; ORELLANA, B. B. M. A.; SEGOVIA, J. F. O.
Tipo: Parte de livro
Palavras-chave: Condições edafoclimáticas; Produção Vegetal; Planta Ornamental.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129377

REDE de pesquisa PECUS - dinâmica de gases de efeito estufa em sistemas de produção da agropecuária brasileira.
Provedor de dados: 14
O objetivo geral do projeto PECUS é contribuir para a competitividade e sustentabilidade da pecuária brasileira através do planejamento, desenvolvimento e organização de pesquisas que estimaram a participação dos sistemas de produção agropecuários na dinâmica de GEE, visando a subsidiar políticas públicas e alternativas de mitigação. O projeto também gerou informações, que podem ser usadas para o aprimoramento de normas e mecanismos de garantia da qualidade, segurança e rastreabilidade dos produtos pecuários. COORDENADORES DO PROJETO Dra. Patrícia Perondi Anchão Oliveira Embrapa Pecuária Sudeste e-mail: patricia.anchao-oliveira@embrapa.br Dra. Ana H. B. M. Fernandes Líder do projeto componente Pantanal, Embrapa Pantanal e-mail:...
Tipo: Parte de livro
Palavras-chave: Projeto de Pesquisa; Efeito Estufa; Gás.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1134310

Pastagem cultivada.
Provedor de dados: 14
Autores: LIMA, E. do V.; DE MARIA, B. G.
Tipo: Parte de livro
Palavras-chave: Pastagem Cultivada.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127331

O climas pretéritos.
Provedor de dados: 14
Autores: JATOBÁ, L.; SILVA, A. F.
As evidências paleoclimáticas geológicas; As evidências paleoclimáticas geomorfológicas; As evidências paleobotânicas de climas pretéritos; Evidências paleoclimáticas em depósitos de gelo quaternários.
Tipo: Parte de livro
Palavras-chave: Clima pretérito; Clima; Mudança Climática; Geologia; Degradação Ambiental; Climate change.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1153784

As Terezas Cristinas e nosso desenvolvimento agropecuário.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000990746/as-terezas-cristinas-e-nosso-desenvolvimento-agropecuario.html.
Tipo: Artigo na mídia
Palavras-chave: Agricultura; Historia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123174

Microalgas: biorremediação de efluentes com linhagens de microalgas.
Provedor de dados: 14
Autores: JUNGMANN, L.
Tipo: Folders
Palavras-chave: Biorremediação; Biotecnologia industrial; Biomassa; Microalga.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123231

A Utilização de feijão carioca biofortificado como opção para aumento do conteúdo de ferro e zinco em barras de cereais.
Provedor de dados: 14
Autores: REBELLO, T. G.; MAGALHÃES, C. S. DE; CARVALHO, J. L. V. de; SILVA, E. M. M. DA; SILVA, D. A.
Tipo: Parte de livro
Palavras-chave: Leguminosas; BRS Cometa; Biofortificação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124170

Manejo da viroses do trigo.
Provedor de dados: 14
Autores: LAU, D.
A cultura do trigo é acometida por duas viroses principais: o nanismo-amarelo e o mosaico-comum. O nanismo-amarelo ocorre em todas as regiões tritícolas, enquanto o mosaico-comum é mais frequente na Região sul.
Tipo: Artigo na mídia
Palavras-chave: Virose do trigo; Mosaico-comum; Região Sul; Brasil; Trigo; Virose Vegetal; Manejo; Nanismo Amarelo; Mosaico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124159

NANOEMULSÃO de cera de carnaúba para evitar perda de frutos: programa 19: Sul.
Provedor de dados: 14
O Prosa Rural desta semana apresenta uma tecnologia importante para a conservação pós-colheita de frutos, em geral, e redução do desperdício. É a nanoemulsão de cera de carnaúba. Ao acompanhar o pesquisador Marcos David Ferreira, da Embrapa Instrumentação, o ouvinte vai saber que a conhecida cera de carnaúba agora conta com partículas ultrafinas - chamadas nanopartículas - capazes de preservar a qualidade e prolongar o tempo de vida dos frutos em cerca de 15 dias a mais, em comparação a outros revestimentos.
Tipo: Gravações de som
Palavras-chave: Nanoemulsão; Nanopartícula; Carnaúba; Cera; Desperdício; Fruto; Conservação; Pós-Colheita; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122776

Global governance.
Provedor de dados: 14
Autores: BALSADI, O. V.; NASCIMENTO, P. P.
Tipo: Parte de livro
Palavras-chave: Desenvolvimento Sustentável; Sustainable development.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128283

CONTROLE de ácaros do coqueiro com óleos vegetais: programa 8: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana traz como convidado o pesquisador Adenir Teodoro, da Embrapa Tabuleiros Costeiros. Ele fala sobre o controle dos ácaros dos coqueiros, utilizando óleos vegetais. Os óleos brutos vegetais, obtidos a partir de sementes de oleaginosas, podem ser usados no controle dessas pragas. Esses óleos possuem, em sua composição, ácidos graxos, que são bioativos a uma variedade de pragas. A vantagem dos óleos é que são pouco tóxicos, além de apresentar baixo risco ambiental.
Tipo: Gravações de som
Palavras-chave: Ácaro; Coco; Óleo Vegetal; Semente; Ácido Graxo; Praga.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120695

Potencialidades para expansão e diversificação agrícola sustentável do Cerrado.
Provedor de dados: 14
Autores: VICTORIA, D. de C.; BOLFE, E. L.; SANO, E. E.; ASSAD, E. D.; ANDRADE, R. G.; GUIMARAES, D. P.; LANDAU, E. C.
Tipo: Parte de livro
Palavras-chave: Cerrado; Uso da Terra; Cobertura do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124110

Desenvolvimento inicial de enxertos de castanheira-do-brasil, obtidos por borbulhia.
Provedor de dados: 14
Autores: PEDROZO, C. A.; FERREIRA, I. I. A.; ALCOFORADO, A. T. W.; MAYER, M. M.; SANTOS, R. F. dos.
O objetivo deste estudo foi determinar o desenvolvimento inicial de enxertos de castanheira-do-brasil obtidos via borbulhia. O experimento foi instalado em 2016, em Mucajaí - RR, utilizando-se como enxerto um clone selecionado quanto à produção de frutos.
Tipo: Folhetos
Palavras-chave: Cultivo; Bertholletia Excelsa; Propagação Vegetativa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126322

Manual prático de formulação de ração para vacas leiteiras.
Provedor de dados: 14
Autores: SALMAN, A. K. D.; OSMARI, E. K.; FALEIRO NETO, J. A.; SANTOS, M. G. R. dos; MATARAZZO, S. V.
Para tornar a pecuária leiteira rondoniense mais competitiva em relação aos demais estados brasi-leiros, a adoção de tecnologias é fundamental para a intensificação do processo de produção. Esse processo de intensificação visando à redução de área e/ou aumento da produção por área e maxi-mização dos lucros depende, estritamente, do manejo adotado para a alimentação do rebanho, já que os custos com a alimentação representam em torno de 40% a 60% do custo total de produção. Logo, o planejamento adequado do manejo nutricional do rebanho evita gastos desnecessários e favorece a lucratividade da atividade. O planejamento alimentar, no entanto, depende de conheci-mentos sobre o potencial nutricional dos alimentos disponíveis para a alimentação do rebanho, das...
Tipo: Folhetos
Palavras-chave: Rondônia; Amazônia Ocidental; Western Amazon; Nutrição Animal; Gado Leiteiro; Ração; Valor Nutritivo; Animal nutrition; Dairy cattle; Cattle feeds; Nutritive value; Nutritional status; Nutritional adequacy.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123902

Sebastião e Maria de Fátima: produção aliada à conservação : Povoado Jenipapo, Esperantinópolis, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122904

Impactos do granizo sobre o desempenho econômico e financeiro da produção de maçã em pomares protegidos com tela ou com seguro agrícola.
Provedor de dados: 14
Autores: LAZZAROTTO, J. J.; FIORAVANÇO, J. C.
O granizo é um fenômeno climático que pode ocasionar sérios impactos negativos sobre a viabilidade do cultivo da macieira. A cobertura do pomar com tela antigranizo ou a contratação de seguro agrícola são medidas que exigem aporte adicional de recursos ao sistema. Para auxiliar o produtor nesta decisão, a publicação apresenta indicadores para avaliar o desempenho econômico-financeiro da atividade frente a distintos cenários de ocorrência de granizo.
Tipo: Folhetos
Palavras-chave: Eficiência econômica; Apple; Riscos; Custos de produção; Taxa interna de retorno; Pomicultura; Tela antigranizo; Prejuízo; Cobertura; Macieira; Granizo; Clima; Mudança Climática; Maçã; Seguro Agrícola; Rentabilidade; Pomar; Clima Tropical; Apples.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128294

Relatório de gestão da Diretoria-Executiva de Gestão Institucional: 2017-2020.
Provedor de dados: 14
Autores: GATTO, L.
Este relatório apresenta um balanço da Diretoria-Executiva de Gestão Institucional referente ao período de julho de 2017 a abril de 2020. Tem o propósito de contribuir com o futuro da empresa, não prescindindo da transparência que a empresa requer. A Embrapa é referência no cumprimento das finalidades das entidades da Administração Pública Indireta, tendo promovido efetivamente o desenvolvimento do agro e da sociedade brasileira ao longo dos seus 47 anos de existência, construindo valores e uma forte cultura organizacional. Nesses últimos 3 anos, vivenciamos um contexto de rápidas transformações no mundo, inclusive no campo da gestão corporativa, fato que favoreceu a percepção sobre a necessidade de revitalização da empresa, tanto em termos de melhoria no...
Tipo: Relatórios técnicos
Palavras-chave: Embrapa; Instituição de Pesquisa; Instituição Pública; Gestão; Research institutions; Administrative management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137211

BEAUVERIA bassiana, fungo para combater a broca-do-café.
Provedor de dados: 14
A capacidade de estar em sintonia com o avanço da ciência faz com que a Embrapa Rondônia possa contribuir para sustentabilidade da agricultura na Amazônia. Assim, de acordo com a sua missão é estratégica a sua participação na área da biotecnologia para promover o manejo da broca-do-café em consonância com os princípios da preservação do meio ambiente e a racionalidade do uso de inseticidas químicos.
Tipo: Folders
Palavras-chave: Broca do café; Coffee berry borer; Biological insect control; Café; Praga de Planta; Hypothenemus Hampei; Fungo Para Controle Biológico; Beauveria Bassiana; Plant pests; Fungi.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123528

Como utilizar a ultrassonografia para melhoria de desempenho reprodutivo das fêmeas suínas.
Provedor de dados: 14
Autores: MARQUES, M. G.; LEAL, D. F.; JORGE NETO, P. N.; VIANA, C. H. C.
Publicação em russo.
Tipo: Folhetos
Palavras-chave: Reprodução Animal; Ultrassom.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128674

Tuberculose bovina em cervídeos.
Provedor de dados: 14
Autores: LIMA, D. A. R.; RODRIGUES, R. DE A.; ETGES, R. N.; ARAUJO, F. R.
A tuberculose bovina (bTB) é uma enfermidade infectocontagiosa, causada por Mycobacterium bovis, que acomete animais domésticos, silvestres e o homem. Em animais silvestres mantidos em cativeiro, a bTB representa risco aos tratadores de animais e aos visitantes de zoológicos, e há também a possibilidade de disseminação da infecção para animais domésticos e pela venda de animais silvestres infectados. Cervídeos das espécies sambar (Cervus unicolor), nobre (Cervus elaphus) e dama (Dama dama) de um parque safári, do Rio Grande do Sul, apresentaram quadro clínico de bTB (dispneia e perda de peso). Alguns animais foram a óbito, sendo detectadas lesões sugestivas de tuberculose (LST), confirmadas por histopatológica. Com o impedimento de comercialização de...
Tipo: Folhetos
Palavras-chave: Tuberculose; Bovino.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122940

Sorgo-sacarino ensilado como alternativa para alimentação de ruminantes.
Provedor de dados: 14
Autores: RETORE, M.; VARGAS JUNIOR, F. M. de; ORRICO JUNIOR, M. A. P.; MANARELLI, D. M.; LEDESMA, L. L. M.
Tipo: Folhetos
Palavras-chave: Silagem; Milho; Sorgo Açucareiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121323

A cadeia agroindustrial do leite na Amazônia.
Provedor de dados: 14
Autores: SILVA, F. de A. C.; ROSA NETO, C.; ARAUJO, L. V. de; MOREIRA, P.
A produção de leite figura como uma das mais importantes atividades da agropecuária brasileira. Além de sua importância alimentar, o produto é o ponto inicial que move uma cadeia produtiva bastante complexa, a qual envolve vários setores por meio de diversas operações, abrangendo desde aspectos primários, como a criação de bovinos, até a fabricação, distribuição e comercialização dos produtos lácteos. No tocante à eficiência da cadeia produtiva do leite na Amazônia, há muito o que ser feito no que se refere a melhorias. Possíveis incrementos de produção e produtividade, associados à redução dos custos de produção, trarão como consequência o aumento da rentabilidade dos agricultores familiares e ganhos de escala no âmbito das indústrias de laticínios,...
Tipo: Parte de livro
Palavras-chave: Agroindústria; Agroindustry; Indústria Agrícola; Produção Leiteira; Cadeia Produtiva; Agricultural industry; Milk production; Supply chain; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126138

Desempenho silvicultural de algumas espécies nativas da Caatinga, na Chapada do Araripe, Pernambuco.
Provedor de dados: 14
Autores: DRUMOND, M. A.; OLIVEIRA, V. R. de; PORTO, D. D.; TAVARES, J. A.; CALIXTO JÚNIOR, J. A.
A região do Araripe tem consumido cada vez mais a matéria prima de base florestal, especialmente, vegetação nativa, visando atender a demanda energética, para o benefi-ciamento e transformação da gipsita. O objetivo deste trabalho foi avaliar o desempenho silvicultural de algumas espécies nativas na Chapada do Araripe. O experimento foi implantado em área da Estação Experimental do Instituto Agronômico de Pernambuco (IPA) em Araripina-PE. A área experimental foi previamente arada e gradeada, tendo sido incorporada, ao solo, 2,0 t ha?1 de calcário dolomítico. Foi feita uma adubação de fundação de 100 g cova?1 com NPK (10-80-30). As mudas foram plantadas com altura variando de 25 a 30 cm. O plantio no campo foi feito em espaçamento de 4 x 4m, com parcelas de...
Tipo: Parte de livro
Palavras-chave: Bioma Caatinga; Chapada do Araripe; Piptadenia Obliqua; Polo gesseiro; Caatinga; Espécie Nativa; Floresta; Vegetação Nativa; Vegetação; Degradação Ambiental; Desmatamento; Mimosa; Myracrodruon Urundeuva; Silvicultura; Land degradation; Environmental degradation; Vegetation types.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130092

Plano de negócios 2020 e estratégia 2020-2024.
Provedor de dados: 14
Autores: EMBRAPA.
Este plano de negócios contém as metas e resultados estratégicos da Embrapa para 2020, bem como sua estratégia, em longo prazo, incluindo linhas de orientação para as atividades a serem desenvolvidas no período de 2020 a 2024.
Tipo: Folhetos
Palavras-chave: Planejamento Estratégico; Pesquisa Agrícola; Inovação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121687

Tratamentos pré-germinativos para o estabelecimento in vitro de sementes de meloeiro Cantaloupe.
Provedor de dados: 14
Autores: FREIRE, F. B. S.; OLIVEIRA, F. I. C.; CARVALHO, A. V. F.; CAMPOS, A. S.; CARVALHO, A. C. P. P. de; ARAGAO, F. A. S. de.
O meloeiro é uma das cucurbitáceas mais relevantes no mundo. Em programas de melhoramento que visam à obtenção de plantas haploides e di-haploides, é de fundamental importância que sejam desenvolvidos métodos eficientes de regeneração in vitro de plantas por meio da cultura de tecidos. Na literatura, embora estejam disponíveis protocolos para a regeneração de plantas de meloeiro, existe uma grande variação nos procedimentos para o estabelecimento in vitro das sementes. Assim, o objetivo deste trabalho foi definir o tratamento de pré-germinação mais adequado para o estabelecimento in vitro de sementes de meloeiro do tipo Cantaloupe.
Tipo: Folhetos
Palavras-chave: Cultura de tecidos vegetais; Taxa de germinação; Explantes; Velocidade de germinação; Cucumis Melo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123137

Diversidade de vertebrados de Áreas de Proteção Ambiental, município de Campo Grande, Mato Grosso do Sul.
Provedor de dados: 14
Autores: PACHER, G. C.; PIATTI, L.; SEVERO NETO, F.; MEIRA, M. A. A.; MAURO, R. de A.; KOLLER, W. W.; SOUZA, F. L. de.
Tipo: Folhetos
Palavras-chave: Animal Vertebrado; Biodiversidade; Desenvolvimento Sustentável; Ecossistema.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124953

Sementes de louro-pardo: produção e qualidade.
Provedor de dados: 14
Autores: GRZYBOWSKI, C. R. de S.; GATTI, L. A. P.; BELNIAKI, A. C.; VIEIRA, E. S. N.
Louro-pardo (Cordia trichotoma (Vell.) Arráb. ex Steud.) é uma espécie florestal nativa, da família Boraginaceae, com ampla distribuição geográfica no Brasil (Figura 1), sendo de ocorrência natural desde o Ceará até o Rio Grande do Sul, principalmente nos biomas Caatinga, Cerrado e Mata Atlântica (Carvalho, 2002). Com crescimento moderado, sua madeira possui valor comercial pelas propriedades físicas e mecânicas (Mantovani et al., 2001), atingindo altura comercial de fuste (até a inserção da copa viva) equivalente a outras espécies nativas, com uma média de aproveitamento de 2 toras/fuste, indicando seu potencial para reflorestamento (Roman et al., 2009). Sua madeira é considerada nobre, sendo indicada para a produção de laminados e móveis requintados...
Tipo: Folhetos
Palavras-chave: Louro-pardo; Germinação de semente; Sistema silvipastoril; Produção; Cordia Trichotoma; Beneficiamento; Manejo; Espécie Nativa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125975

MANEJO integrado de pragas na cultura da soja: programa 36: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre ?Manejo Integrado de Pragas na Cultura da Soja". A pesquisa agropecuária recomenda essa tecnologia ao produtor rural que quer ganhar segurança no trabalho, ter maior qualidade ambiental e produtividade, por meio de um monitoramento constante de sua lavoura. A pesquisadora Ana Paula Afonso da Rosa, da Embrapa Clima Temperado, faz um panorama de como surgiu essa prática no cenário agropecuário e como têm sido os estudos realizados na Embrapa. Fique ligado no Prosa Rural, porque aqui você encontra informações importantes para a sua produção agrícola. O Prosa Rural é o programa de rádio da Embrapa!
Tipo: Gravações de som
Palavras-chave: Soja; Produção; Tecnologia; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125229

Emprego do modelo da taxa de crescimento de frutos em programa de raleio de macieira "Fuji Suprema".
Provedor de dados: 14
Autores: RUFATO, A. de R.; MARCHIORETTO, L. de R.; SERAFIM, H.; SILVA, M. T. S. da.
Apresenta a descrição de experimento de raleio químico com benziladenina e um tratamento controle realizados para validar o modelo matemático da taxa de crescimento dos frutos com a cultivar 'Fuji Suprema'. O resultado indica que o modelo de taxa de crescimento de frutos foi efetivo na previsão do número de frutos por planta e permitiu uma avaliação antecipada da eficiência do raleio químico, sendo que o tratamento com duas aplicações foi o mais indicado para o raleio de macieiras 'Fuji Suprema'.
Tipo: Folhetos
Palavras-chave: Raleio químico da macieira; Benziladenina; Ajuste da carga de frutos; Maçã; Malus Domestica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124648

CUIDADOS no preparo e aplicação de defensivos agrícolas: programa 10: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre os cuidados no preparo e aplicação de defensivos agrícolas. Um tema de grande importância para o agricultor, apresentado pelo pesquisador Murilo Arruda e pelo técnico de segurança do trabalho Manoel Rodrigues Júnior, ambos da Embrapa Amazônia Ocidental. O ouvinte vai conhecer os aspectos essenciais do uso de agrotóxicos, tudo de acordo com a lei, de modo a garantir a segurança do produtor, do aplicador, do meio ambiente e do consumidor do produto final.
Tipo: Gravações de som
Palavras-chave: Agrotóxico; Agricultor; Consumidor; Defensivo; Meio Ambiente; Pesticida.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121506

Manejo comunitário da agrobiodiversidade: produção agroecológica de sementes de variedades crioulas por agricultores familiares.
Provedor de dados: 14
Autores: CURADO, F. F.; SANTOS, A. da S. dos; FAGUNDES, R. de C.; LIMA, A. C.; BIANCHINI, P. C.
Tipo: Livros
Palavras-chave: Semente; Alimento; Conservação; Produção; Desenvolvimento Comunitário.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129395

Cartilha de plantas medicinais (Rau Xarabu): Terra Indígena Kaxinawá Nova Olinda, Feijó, Acre, Brasil.
Provedor de dados: 14
Autores: HAVERROTH, M.; LOPES, B. P. S.; SILVA, M. P. da; FERREIRA, A. B.
Esta cartilha traz um levantamento etnobotânico das plantas medicinais utilizadas pelos Kaxinawá e, por meio de seu registro, busca contribuir para o fortalecimento da resiliência do sistema tradicional de saúde indígena. Traz uma amostra significativa das plantas medicinais dentro do contexto do conhecimento dos pajés, parteiras e demais especialistas da Terra Indígena Kaxinawá Nova Olinda (TIKNO), cujo conteúdo está voltado para os próprios Kaxinawá a fim de servir como meio de incentivo e orientação aos jovens aprendizes da medicina desse povo, bem como a todo o público interessado no tema, como acadêmicos, indigenistas, gestores na área de saúde e estudantes em geral.
Tipo: Livros
Palavras-chave: Conhecimento tradicional; Traditional knowledge; Comunidades tradicionais; Povos indígenas; Medicina tradicional; Plantas medicinales; Conocimiento tradicional; Terra Indígena Kaxinawá de Nova Olinda (TIKNO); Feijó (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Etnobôtanica; Planta Medicinal; Ethnobotany; Medicinal plants; Indigenous knowledge; Traditional medicine.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124578

A importância de gerenciar o risco de preço na pecuária de corte.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Carne bovina; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125553

Cocreation, validation and feedback: innovation in the e-book Women in coffee in Brazil.
Provedor de dados: 14
Autores: MELLO, A. A. C. de; ARZABE, C.; VIDAL, W. C. L.; FRANCO, P. C. R.; HAMMES, V. S.; ALVES, H. M. R.
This chapter presents actions of Embrapa that contribute especially to two targets: "5.1 End all forms of discrimination against all women and girls everywhere [...] 5.B) Enhance the use of enabling technology, in particular information and communications technology, to promote the empowerment of women" (United Nations, 2020).
Tipo: Parte de livro
Palavras-chave: Mulher; Igualdade de Genero; Mulher Rural; Rural women; Women in agriculture; Gender.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122158

Status of women in Brazil, disparities and efforts at Embrapa and in agriculture.
Provedor de dados: 14
Autores: ARZABE, C.; MARTINS, A. L. da S.
Reducing gender gaps in the labor market would allow an additional 204 million people to enter the global workforce by 2025. This increase could lead to a 3.9% increase in world gross domestic product (GDP). A large part of the jobs (162.4 million or 62%) would be generated in emerging countries, due to their relative size and the fact that they have the greatest gender disparities (Mujeres, 2017). Among other factors, the expansion of the presence of women in positions of management, spaces of power and decision of the governments, in the spaces of social control of the public policies, in the parliament, in the political parties, in the social movements, in the unions, in the cooperatives, in the academic world and in access to professions considered to...
Tipo: Parte de livro
Palavras-chave: Papel da mulher; Mulher Rural; Igualdade de Genero; Rural women; Gender; Women in agriculture.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122157

Coletor de esporos: descrição, uso e resultados no manejo da ferrugem-asiática da soja.
Provedor de dados: 14
Autores: OLIVEIRA, G. M. de; HELING, A. L.; POSSAMAI, E. J.; SEIXAS, C. D. S.; CONTE, O.; IGARASHI, W. T.; IGARASHI, S.
Tipo: Folhetos
Palavras-chave: Coletor de esporos; Soja; Ferrugem; Soybean rust.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129482

POPULARIZAÇÃO da tecnologia de dupla poda da videira: programa 30: Sul.
Provedor de dados: 14
O Prosa Rural desta semana, apresentado pela Empresa de Pesquisa Agropecuária de Minas Gerais (Epamig), parceira da Embrapa, está voltado para a popularização da tecnologia de dupla poda da videira. A enóloga Isabela Peregrino e a pesquisadora Renata Vieira da Mota, ambas da Epamig, que explicam a tecnologia, contam ao ouvinte como e por que esse método permitiu o surgimento de um novo polo produtor de vinhos finos no Sudeste brasileiro.
Tipo: Gravações de som
Palavras-chave: Poda; Tecnologia; Uva; Vinho; Grapes; Wines; Technology; Pruning.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124134

Um ano extraordinário para a ciência.
Provedor de dados: 14
Autores: LOPES, M. A.
Nos últimos 20 dias de janeiro de 2020, mais de 50 trabalhos de pesquisa foram publicados, com descrições iniciais do vírus, seu modo de ação e de disseminação. As publicações científicas sobre a covid-19 chegaram a 7,5 mil em maio; 53 mil em setembro; e 78 mil, no início de dezembro de 2020.
Tipo: Artigo na mídia
Palavras-chave: Pandemia; Pesquisa e desenvolvimento; Pesquisa; Desenvolvimento Socio-Econômico; Desenvolvimento Sustentável; Vacina; Pandemic; Research and development; Sustainable development.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128771

Monitoramento de desembarques pesqueiros na Bacia Tocantins-Araguaia: São Félix, Marabá, PA.
Provedor de dados: 14
Este boletim tem como objetivo avaliar as pescarias realizadas pelos pescadores(as) do São Félix, um bairro ribeirinho urbano, localizado as margens do rio Tocantins, na cidade de Marabá-PA.
Tipo: Folhetos
Palavras-chave: São Félix Marabá-PA; Cadeia Produtiva; Desembarque; Desenvolvimento Sustentável; Pesca Artesanal; Pescador; Projeto Pesqueiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125502

Potencial antifúngico a Penicillium expansum de filmes de polissacarídeos à base de quitosana e trimetil quitosana.
Provedor de dados: 14
Autores: BRITTO, D. de; ASSIS, O. B. G. de.
O controle alternativo pós-colheita de frutos e hortaliças para diminuir e erradicar infecções por microrganismos como fungos é vantajoso sob vários aspectos, principalmente do ponto de vista da sustentabilidade e segurança alimentar. Cada vez mais, o mercado consumidor tem buscado por produtos seguros, com baixo ou nenhum resíduo de agrotóxicos e produzidos de forma sustentável, com baixo impacto ambiental. Alguns compostos naturais como os óleos essenciais, polifenóis e alguns polissacarídeos, como quitosana, apresentam atividade antimicrobiana, apresentando-se, assim, como uma alternativa mais segura e sustentável. Neste trabalho, filmes do polissacarídeo quitosana e de seu derivado trimetil quitosana (TMQ) foram avaliados quanto à sua capacidade...
Tipo: Folhetos
Palavras-chave: Filme comestível; Fitopatógeno; Antimicrobiano; Pós-Colheita; Tecnologia de Alimento; Fungo; Preservação de Alimento; Segurança Alimentar; Postharvest technology; Postharvest treatment; Edible films.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124065

Do boi tudo se aproveita, até o berro.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000981338/do-boi-tudo-se-aproveita-ate-o-berro.html.
Tipo: Artigo na mídia
Palavras-chave: Bovinocultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129583

O clima e as plantas.
Provedor de dados: 14
Autores: SILVA, A. F.
O presente capítulo apresenta respostas de formações vegetais, nativas ou cultivadas, às variações visíveis ou mensuráveis dos principais elementos climáticos, como temperatura, umidade e vento.
Tipo: Parte de livro
Palavras-chave: Temperatura do ar; Espécies vegetais; Temperatura das plantas; Temperatura da água de irrigação; Umidade da planta; Clima; Planta; Vegetação; Temperatura do Solo; Mudança Climática; Natural resources.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1153788

O sertão vai virar pasto.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Tipo: Artigo na mídia
Palavras-chave: Mudanças climáticas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123977

ALERTA e manejo contra a peste suína clássica: programa 1: Centro-Oeste/Sudeste.
Provedor de dados: 14
Esta semana o Prosa Rural fala sobre a peste suína clássica: alerta e manejo. A Peste Suína Clássica é uma doença com alto grau de mortalidade entre os animais. A doença é de notificação obrigatória no Brasil e acomete somente suínos; ou seja, não é transmitida ao ser humano ou outras espécies. O Brasil é livre da peste suína clássica em 15 estados e no Distrito Federal, mas em 2018 foram registrados casos no Nordeste do País, o que pode colocar em risco a situação sanitária do Brasil e também a economia baseada na produção e exportação de carne. Participa do programa a médica veterinária Danielle Gava, da Embrapa Suínos e Aves.
Tipo: Gravações de som
Palavras-chave: Peste Suína; Doença Animal; Produção de Carne; Mortalidade Animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119501

Dona Beta e seu Matias pela preservação da vida e do solo: Estrada da Vitória, Poção de Pedras, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; MATOS, F. F. de; SOUSA, R. C. de; PIRATOBA, D. N. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122835

Calagem, adubação e estado nutricional em oliveiras.
Provedor de dados: 14
Autores: TIECHER, T. L.; VIEIRA, F. C. B.; NAVA, G.; BENATI, J. A.; NAVROSKI, R.; BARRETO, C. F.; TIECHER, T.; BUNETTO, G.
Tipo: Parte de livro
Palavras-chave: Estado Nutricional.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128413

Todo mundo tropical usa queimadas como técnica agrícola.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000995940/todo-mundo-tropical-usa-queimadas-como-tecnica-agricola.html.
Tipo: Artigo na mídia
Palavras-chave: Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125114

Pimenteiras (pimenta-de-cheiro - verde e doce; pimenta-de-cheiro - amarela e ardida, também chamada cumari-do-pará; murupi e malagueta).
Provedor de dados: 14
Autores: CRAVO, M. da S.; VIÉGAS, I. de J. M.; BRASIL, E. C.
Tipo: Parte de livro
Palavras-chave: Pimenta de Cheiro; Pimenta Malagueta; Pimenta Doce.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127306

A cadeia produtiva da mandioquinha-salsa: implicações para a agenda tecnológica e a pesquisa agronômica.
Provedor de dados: 14
Autores: PEDROSO, M. T. M.
O estudo apresentado nesse documento dedica-se à análise da cadeia produtiva da mandioquinha-salsa no Brasil.
Tipo: Folhetos
Palavras-chave: Mandioquinha Salsa; Cadeia Produtiva; Mercado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125766

A reciclagem animal é a base da sustentabilidade da pecuária.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000994201/a-reciclagem-animal-e-a-base-da-sustentabilidade-da-pecuaria.html.
Tipo: Artigo na mídia
Palavras-chave: Alimento processado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124023

RESTAURAÇÃO produtiva de áreas na agricultura familiar amazônica: programa 23: Norte.
Provedor de dados: 14
O Prosa Rural desta semana apresenta a restauração produtiva de áreas na agricultura familiar amazônica, tema vinculado às ações do projeto Inovaflora, financiado pelo Fundo Amazônia e operacionalizado pelo BNDES. A pesquisadora Michelliny Bentes, da Embrapa Amazônia Oriental, explica como e por que o agricultor deve recuperar suas áreas de preservação permanente, reserva legal e uso restrito, plantando espécies arbóreas nativas e frutíferas, de modo a colher benefícios ambientais, econômicos e sociais. O programa traz ainda o depoimento de técnicos e agricultores, e orienta como adubar e irrigar sistemas agroflorestais para a recuperação de reservas legais.
Tipo: Gravações de som
Palavras-chave: Sistema agroflorestal; Reserva legal; Fundo-amazônia; Agricultura Familiar; Agricultor; Espécie Nativa; Árvore Frutífera; Adubação; Irrigação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123587

VII Plano Diretor da Embrapa 2020-2030.
Provedor de dados: 14
Autores: EMBRAPA.
O VII PDE traz um novo olhar sobre o posicionamento institucional, pensado a partir da diversidade dos ecossistemas de inovação para aprimorar a execução de PD&amp;I, as relações institucionais e a inteligência agropecuária, além de fortalecer a governança e a gestão. Conectados a esse posicionamento institucional, a missão, a visão e os valores da Embrapa traduzem o valor a ser entregue à sociedade, o que permite consolidar essa mudança de perspectiva.
Tipo: Folhetos
Palavras-chave: Agricultura digital; Energia renovável; Inteligência territorial; Ecossistema de inovação; Planejamento Estratégico; Agricultura Sustentável; Cadeia Produtiva; Inovação; Instituição de Pesquisa; Mudança Climática; Biomassa; Research institutions; Research programs; Administrative management; Agricultural management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126091

Apoio da Facepe às pesquisas aplicadas estimula desenvolvimento da agricultura no Interior de Pernambuco.
Provedor de dados: 14
Autores: MELO, N. F. de.
As políticas públicas de interiorização da Ciência, Tecnologia e Inovação de Pernambuco podem ser percebidas facilmente por meio de ações das universidades e centros de pesquisa instalados nas mais diversas regiões do estado. Ao longo das últimas décadas, a Facepe vem firmando inúmeras parcerias com essas instituições e uma delas é a Empresa Bra- sileira de Pesquisa Agropecuária (Embrapa).
Tipo: Artigo na mídia
Palavras-chave: Facepe; Agricultura irrigada; Financiamento da pesquisa; Vale do São Francisco; Agricultura; Pesquisa; Investimento; Research and development; Agricultural research.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125634

Método de avaliação da estabilidade de materiais orgânicos por meio de emissões potenciais de CO2 e de NH3.
Provedor de dados: 14
Autores: LEAL, M. A. de A.
Tipo: Folhetos
Palavras-chave: Estabilidade; Respirometria; Matéria Orgânica; Incubação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126947

Pastagens: condicionantes econômicos e seus efeitos nas decisões de formação e manejo.
Provedor de dados: 14
Autores: PEREIRA, M. de A.; COSTA, F. P.; MONTAGNER, D. B.; EUCLIDES, V. P. B.; ARAUJO, A. R. de; BARBOSA, R. A.; SOUZA, J. A. B. A.
Tipo: Folhetos
Palavras-chave: Degradação; Forrageira; Falha na semeadura; Manejo do pastejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124196

MANEJO adequado para redução dos riscos de bicheira em bovinos: programa 4: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o manejo adequado para reduzir os riscos de bicheira em bovinos. O controle de ferimentos em bovinos deve ser uma prática constante do pecuarista, já que o problema com bicheira reduz a produtividade da carne e do leite, desvaloriza o couro por conta das lesões que aparecem, além de acarretar altos gastos com medicamentos. O ouvinte vai saber o que causa a bicheira nos animais e vai saber também como evitá-las, com as dicas da veterinária Márcia de Oliveira, da Embrapa Pecuária Sudeste.
Tipo: Gravações de som
Palavras-chave: Bicheira; Bovino; Medicamento; Pecuarista; Produtividade; Lesão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119536

Pecuária leiteira na Amazônia.
Provedor de dados: 14
No bioma Amazônia, o leite constitui o produto central da vida de milhares de famílias. É produzido em um ambiente em que a cadeia produtiva teve de ser adaptada e reinventada. Em razão disso, havia necessidade de produzir um livro que tratasse de um tema tão nobre e importante e trouxesse as características e especificidades da Região Amazônica. Esta publicação, reúne informações necessárias a todos os que pretendem atuar na cadeia produtiva do leite na região. Permite a tomada de decisões do agricultor em sua propriedade; do agente financeiro responsável pelo financiamento da produção; do estudante em sua formação; e do extensionista na aplicação das técnicas indicadas. Espera-se que as informações possam ser úteis ao desenvolvimento e ao fortalecimento...
Tipo: Livros
Palavras-chave: Cattle husbandry; Indústria Pecuária; Gado Leiteiro; Manejo; Produção Leiteira; Cadeia Produtiva; Dairy industry; Dairy cattle; Milk production; Supply chain; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126135

Oecleus sergipensis (Hemiptera: Auchenorrhyncha: Cixiidae): nova espécie de cigarrinha potencialmente vetora do amarelecimento letal do coqueiro.
Provedor de dados: 14
Autores: TEODORO, A. V.; DINIZ, L. E. C.; SILVA, F. G. da; PASSOS, E. M. dos; TALAMINI, V.; GUZZO, E. C.; DOLLET, M.
Tipo: Folhetos
Palavras-chave: Coco; Doença de Planta; Praga de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129410

Agricultura conservacionista: solução de inovação tecnológica e econômica para a produção diversa em solos arenosos do Juruá, Acre, Sudoeste da Amazônia - resultados integrados de 13 anos.
Provedor de dados: 14
Autores: COSTA, F. de S.; SA, C. P. de; LAMBERTUCCI, D. M.; TAVELLA, L. B.; BRITO, E. de S.; KLEIN, M. A.; DICK, D. P.
Este trabalho apresenta os resultados dos cultivos de mandioca, milho e plantas de cobertura do solo que são oriundos de uma pesquisa participativa conduzida em condições de campo baseada na agricultura conservacionista no ramal Alto Pentecostes de Mâncio Lima, Acre, sudoeste da Amazônia brasileira. Esta publicação está de acordo com os Objetivos de Desenvolvimento Sustentável 2 (Fome Zero e Agricultura Sustentável), 12 (Consumo e Produção Responsáveis), 13 (Ação Contra a Mudança Global do Clima) e 17 (Parcerias e Meios de Implementação). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas.
Tipo: Folhetos
Palavras-chave: Agricultura conservacionista; Suelos arenosos; Cero labranza; Cultivo mixto; Rotación de cultivos; Adopción de innovaciones; Ramal Alto Pentecostes; Mâncio Lima (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Selo ODS 17; Selo ODS 2; Selo ODS 12; Selo ODS 13; Agricultura Familiar; Solo Arenoso; Plantio Direto; Consorciação de Cultura; Rotação de Cultura; Arroz; Oryza Sativa; Feijão; Phaseolus Vulgaris; Milho; Zea Mays; Planta de Cobertura; Cobertura do Solo; Transferência de Tecnologia; Adoção de Inovações; Agricultural conservation practice; Sandy soils; No-tillage; Mixed cropping; Crop rotation; Rice; Beans; Corn; Ground cover plants; Technology transfer; Innovation adoption.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121607

Viabilidade econômica da cultura da soja para a safra 2020/2021, na região centro-sul de Mato Grosso do Sul.
Provedor de dados: 14
Autores: RICHETTI, A.
Tipo: Folhetos
Palavras-chave: Mato Grosso do Sul; Custo de Produção; Soja.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124213

ESCOLHA e manejo do componente arbóreo em sistemas ILPF: programa 32: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o uso de árvores em sistemas de integração lavoura-pecuária-floresta ( ILPF) - estratégia de produção que integra diferentes sistemas produtivos, agrícolas, pecuários e florestais dentro de uma mesma área. O pesquisador Maurel Behling, da Embrapa Agrossilvipastoril, traz explicações sobre a escolha da espécie arbórea, a definição do espaçamento e da configuração, bem como os cuidados que o produtor deve tomar na condução e manejo das árvores.
Tipo: Gravações de som
Palavras-chave: Árvore; Lavoura; Pecuária; Floresta; Espaçamento; Produtor; Trees; Tillage; Forests; Livestock.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124740

Calagem, adubação e estado nutricional em pessegueiros.
Provedor de dados: 14
Autores: PAULA, B. V. de; NAVA, G.; ROZANE, D. E.; NOVROSKI, R.; BARRETO, C. F.; BENATI, J. A.; BETEMPS, D. L.; MELO, G. W. B. de; BRUNETTO, G.
O Brasil é o décimo terceiro maior produtor de pêssegos do Mundo e o Rio Grande do Sul (RS) é o estado com maior produção nacional. O pêssego é um fruto apreciado por seu sabor adocicado e aparência de cor amarela e avermelhada. Pode ser consumido in natura, mas também, pode ser consumido em compotas, doces ou sucos. Por isso, é produzido e gera impacto econômico e social positivo as propriedades, município, estados e países que o produzem. Mas, em geral, os solos cultivados não fornecem a quantidade de nutrientes necessária para suprir a demanda do pessegueiro (Prunus persica) e, por isso, torna-se necessário, muitas vezes, a calagem e adubações, como de plantio ou pré-plantio, crescimento e manutenção, para o adequado estado nutricional, o que se...
Tipo: Parte de livro
Palavras-chave: Estado Nutricional; Pêssego; Prunus Persica; Análise do Solo; Fertilidade do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128411

Anais...
Provedor de dados: 14
Autores: JORNADA DE INTEGRAÇÃO DA PÓS-GRADUAÇÃO DA EMBRAPA SEMIÁRIDO, 4., 2019, Petrolina.
Nesta publicação são reunidos os trabalhos apresentados na IV Jornada de Integração da Pós-graduação da Embrapa Semiárido, reafirmando-se uma das contribuições da Unidade com a formação de profissionais que podem atuar em diversas áreas da pesquisa científica.
Tipo: Anais e Proceedings de eventos
Palavras-chave: Jornada científica; Agricultura irrigada; Mangicultura; Tecnologia de bioprocessos; Sistemas agrícola dependente de chuva; Recurso Natural; Biodiversidade; Caatinga; Produção Animal; Instituição de Pesquisa; Método de Pesquisa; Política de Pesquisa; Programa de Pesquisa; Agricultural research; Cooperative research; Educational research; Research and development.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123463

Pupunheira para produção de palmito.
Provedor de dados: 14
Autores: RODRIGUES, J. E. L. F.; ARAUJO, S. M. B.
Tipo: Parte de livro
Palavras-chave: Pupunha; Palmito.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127287

Seleção de genótipos de amendoim forrageiro para o Estado do Amazonas.
Provedor de dados: 14
Autores: PERIN, R.; SOUZA, J. N.; TONATO, F.
O objetivo deste trabalho foi selecionar genótipos de amendoim forrageiro adaptados às condições edafoclimáticas do Amazonas e com potencial para alta produtividade.
Tipo: Folhetos
Palavras-chave: Amendoim forrageiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128804

Controle de Qualidade da Própolis.
Provedor de dados: 14
Autores: BARRETO, A. L. H.; LOPES, M. T. do R.; PEREIRA, F. de M.; SOUZA, B. de A.
Própolis: definição e características; Elaboração e utilização da própolis; Composição da própolis; Produção da própolis; Controle de qualidade da própolis; Preparo de amostras de própolis para realização de análises físico-químicas; Obtenção do extrato etanólico de própolis por Soxhlet; Análises Físico-químicas; Perda por dessecação (umidade); Determinação de cinzas (material mineral); Massa mecânica (resíduo insolúvel em etanol); Determinação de cera; Determinação de compostos fenólicos pelo método de Folin-Denis; Determinação do teor de flavonoides; Determinação da atividade de oxidação (índice de oxidação); Determinação de resíduo seco (solúveis em etanol).
Tipo: Folhetos
Palavras-chave: Análise físico-química; Própolis; Sistema de Produção; Controle de Qualidade; Honey and bee products; Chemical analysis; Quality control.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128584

Guia de boas práticas para o manejo dos enfezamentos e da cigarrinha-do-milho.
Provedor de dados: 14
Autores: ALVES, A. P.; PARODY, B.; BARBOSA, C. M.; OLIVEIRA, C. M. de; SACHS, C.; SABATO, E. de O.; GAVA, F.; DANIEL, H.; OLIVEIRA, I. R. de; FORESTI, J.; COTA, L. V.; CAMPANTE, P.; GAROLLO, P. R.; PALATNIK, P.; ARAUJO, R. M.
As práticas agrícolas utilizadas nos sistemas de produção podem contribuir tanto para restringir quanto para favorecer a incidência e a severidade de pragas e doenças. O aumento da produção de milho para atender à crescente demanda por esse cereal, bem como as condições ambientais que favorecem o cultivo de duas ou mais safras da mesma cultura em várias regiões do Brasil, têm favorecido a presença de plantas de milho no campo o ano inteiro, seja cultivado ou tiguera, e criado um ambiente favorável para o aumento da cigarrinha-do- milho e consequentemente do complexo de enfezamentos.
Tipo: Folhetos
Palavras-chave: Praga de Planta; Milho; Cigarrinha; Enfezamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129511

Georreferenciamento dos pivôs centrais de irrigação no Brasil: ano base 2020.
Provedor de dados: 14
Autores: GUIMARAES, D. P.; LANDAU, E. C.
O Brasil é um importante produtor global de alimentos. A agricultura irrigada tem possibilitado o aumento da produtividade e a extensão do período apto para a produção agrícola, o que também representa demanda local por recursos hídricos e frequente aplicação de agroquímicos. A identificação das áreas equipadas com pivôs centrais de irrigação contribui para uma gestão integrada dos recursos hídricos e priorização de áreas para restauração de ecossistemas relacionados com a água, conforme fundamentado pela Política Nacional de Recursos Hídricos ? PNRH. Foi realizado levantamento nacional das áreas com pivôs centrais em 2020, através da identificação visual em mosaicos de imagens dos satélites Sentinel 2 e Cbers 4A. Foram identificados 25.292 pivôs centrais,...
Tipo: Livros
Palavras-chave: Geoprocessamento; Agricultura irrigada; Sentinel 2; Cbers 4A; Google Earth; Google Engine; Irrigação; Equipamento de Irrigação; Pivô Central.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128368

Aplicação de técnicas de mapeamento digital de solos no âmbito do zoneamento ecológico-econômico do bioma Amazônia no Maranhão.
Provedor de dados: 14
Autores: MENDONÇA-SANTOS, M. de L.; MOURA-BUENO, J. M.; FRANÇA, V. L. de; FREIRE, G. da C.; ZONTA, J. B.
O conhecimento dos solos e de sua distribuição espacial na paisagem é um importante instrumento para o planejamento do uso das terras e para tomada de decisões para subsidiar políticas públicas, tais como o Zoneamento Ecológico-Econômico (ZEE). Esse conhecimento pode ser adquirido pelo levantamento e mapeamento pedológico convencional e/ou por meio da técnica de Mapeamento Digital de Solos (MDS). No Brasil, estudos relacionados à aplicação das técnicas de MDS iniciaram nos anos 2000, com o ?2nd Workshop on Digital Soil Mapping?, organizado pela Embrapa Solos em 2004, onde vários estudos brasileiros foram apresentados, buscaram maximizar o uso de mapas e informações de solos pré-existentes (dados legados) e assim fornecer estimativas de classes e atributos...
Tipo: Livros
Palavras-chave: Solo; Classificação do Solo; Reconhecimento do Solo; Zoneamento Ecológico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129349

Iscas artificiais de baixo custo para as redes de emalhe da pesca artesanal, rio Araguaia,Tocantins.
Provedor de dados: 14
Autores: PRYSTHON, A.; GENTIL, E.; PEDROZA FILHO, M. X.; ARAUJO, C.
Este comunicado tem como objetivo ainda divulgar e orientar, de maneira prática, pescadores e multiplicadores sobre a aplicação correta das iscas artificiais.
Tipo: Folhetos
Palavras-chave: Rio Araguaia-TO; Rede de emalhe; Isca artificial; Pesca Artesanal; Isca; Renda; Alimento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129235

Sistemas agrossilvipastoris para produção de leite.
Provedor de dados: 14
Autores: SALMAN, A. K. D.; GIUSTINA, C. D.; MARTINEZ, G. B.; MONTEIRO, R. A. C.
O objetivo deste capítulo é apresentar os sistemas agrossilvipastoris como alternativa para produção de leite na Região Amazônica. Inicialmente, serão abordados aspectos conceituais e os possíveis benefícios desses sistemas. A seguir, serão apresentadas as possibilidades de integração entre lavoura, pastagem e árvores, bem como os resultados de desempenho de rebanhos leiteiros mantidos nesses sistemas na Região Amazônica.
Tipo: Parte de livro
Palavras-chave: Sistema agrossilvipastoril; Sistemas agroflorestais (SAFs); Integração lavoura-pecuária-floresta (iLPF); Crop-livestock-forest integration; Produção Leiteira; Agrossilvicultura; Rendimento; Milk production; Agroforestry; Milk yield.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126183

Tomate rasteiro.
Provedor de dados: 14
Autores: ARAUJO, S. M. B.; CHENG, S. S.; VIÉGAS, I. de J. M.
Tipo: Parte de livro
Palavras-chave: Tomate.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127310

Custos de produção apresentaram alta de 1,20% em fevereiro.
Provedor de dados: 14
Autores: LANA, M. S.; MARTINS, P. do C.; CARNEIRO, A. V.
Em fevereiro de 2020, o Índice de Custo de Produção de Leite ? ICPLeite / Embrapa aumentou 1,2%. Este foi o quinto aumento consecutivo do índice. Os grupos ligados à alimentação (Produção de volumosos e Concentrado) foram os responsáveis por esse aumento. No acumulado dos últimos 12 meses, o ICPLeite/Embrapa registra alta de 4,32%. Nesse período, a alta foi impulsionada principalmente pelos grupos Concentrado, Sal Mineral, Energia e combustível e Qualidade do leite que apresentaram os maiores incrementos de preços. Mais detalhes sobre essas variações por períodos e por grupos, bem como a metodologia de cálculo, estão disponíveis na publicação ICPLeite / Embrapa da Plataforma de Inteligência Intelactus em sua edição de fevereiro de 2020.
Tipo: Artigo na mídia
Palavras-chave: Qualidade do leite; Sal mineral.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121137

A meta do agronegócio é abrir mercados.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000982048/a-meta-do-agronegocio-e-abrir-mercados.html.
Tipo: Artigo na mídia
Palavras-chave: Economia Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129635

Chuvas de verão têm impactos diferentes na cidade e no campo.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000983439/chuvas-de-verao-tem-impactos-diferentes-na-cidade-e-no-campo.html.
Tipo: Artigo na mídia
Palavras-chave: Precipitação; Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121462

CUIDADOS no preparo e aplicação de defensivos agrícolas: programa 10: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre os cuidados no preparo e aplicação de defensivos agrícolas. Um tema de grande importância para o agricultor, apresentado pelo pesquisador Murilo Arruda e pelo técnico de segurança do trabalho Manoel Rodrigues Júnior, ambos da Embrapa Amazônia Ocidental. O ouvinte vai conhecer os aspectos essenciais do uso de agrotóxicos, tudo de acordo com a lei, de modo a garantir a segurança do produtor, do aplicador, do meio ambiente e do consumidor do produto final.
Tipo: Gravações de som
Palavras-chave: Agrotóxico; Agricultor; Consumidor; Meio Ambiente; Pesticida.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121511

Influência do afastamento do palhiço na deposição e na eficiência de inseticidas químicos e biológico no controle da cigarrinha-da-raiz da cana-de-açúcar.
Provedor de dados: 14
Autores: ALVES, R. T.; MALAQUIAS, J. V.; JORGE, L. P. M.; BORTOLLETO, L. A.
A cultura da cana-de-açúcar é de grande importância para a economia brasileira e tem se expandido em diferentes regiões do país. Isso diminui as barreiras naturais como a vegetação nativa, permitindo o aparecimento ou o aumento de insetos-praga como as cigarrinhas. O emprego de métodos culturais, químicos e biológicos tem que ser bem executado nos canaviais. O objetivo desta pesquisa foi avaliar a influência do afastamento do palhiço na deposição e na eficiência de produtos químicos e biológico para controle da cigarrinha-da-raiz da cana. O delineamento experimental foi do tipo blocos ao acaso com oito tratamentos e quatro repetições: (1) testemunha (sem aplicação de fungo ou químico) sem afastamento do palhiço; (2) e com afastamento do palhiço; (3)...
Tipo: Folhetos
Palavras-chave: Metharhizium anisopliae fungo; Palhada; Controle Biológico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124656

Tutorial: introdução ao software brblup.
Provedor de dados: 14
Autores: HIGA, R. H.
Este tutorial apresenta uma parte do resultado obtido até o presente momento no desenvolvimento do brbv e seus aplicativos. Trata-se de um passo a passo para iniciantes com a apresentação de diversos exemplos que ilustram tanto a forma de especificar uma gama de modelos utilizados na avaliação genética de animais como a utilização brblup para obtenção dos correspondentes valores genéticos.
Tipo: Folhetos
Palavras-chave: Tutorial; Software; Software brblup; Computer software.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127935

Estudos exploratórios sobre cadeias produtivas de hortaliças: implicações para as pesquisas agronômicas.
Provedor de dados: 14
Autores: PEDROSO, M. T. M.
O presente trabalho argumenta que não basta identificar os aspectos relacionados com as demandas tecnológicas em suas manifestações mais aparentes e superficiais. Isso seria realizar um estudo extremamente pueril, simplório e ineficaz. É preciso contextualizá-los de acordo com as correlações de forças econômicas que são intrínsecas a cada cadeia produtiva. Portanto, desenvolver estudos que possam organizar as informações sociais e econômicas sobre cada uma das cadeias produtivas torna-se imperativo.
Tipo: Folhetos
Palavras-chave: Hortaliça; Cadeia Produtiva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126959

National commitments and participation of Embrapa.
Provedor de dados: 14
Autores: GAMBETTA, R.; LEITAO, R. C.; OTENIO, M. H.; KUNZ, A.
Tipo: Parte de livro
Palavras-chave: Objetivos de Desenvolvimento Sustentável; Organização das Nações Unidas; Biocombustível; Bioenergia; Agricultura Sustentável; Desenvolvimento Sustentável; Biofuels; Bioenergy; Sustainable agriculture; Sustainable development; Renewable energy sources.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131173

Características físico-químicas e sensoriais de pirarucu (Arapaima gigas) cultivado em tanque-rede.
Provedor de dados: 14
Autores: FREITAS, A. F. de; MATTIETTO, R. de A.
O objetivo deste trabalho foi avaliar as características físico-químicas e sensoriais do pirarucu (Arapaima gigas) proveniente da criação em tanque-rede da comunidade pesqueira ribeirinha Ilha de São Miguel, região do Aritapera, Santarém, PA. Foram capturados cinco espécimes, com peso aproximado de 7,5 kg. O método de abate foi manual e mecânico por meio de golpe letal sobre a cabeça. Para a avaliação físico-química (cinzas, lipídeos, proteínas e umidade) foram feitos cortes transversais à coluna vertebral e retiradas três fatias de aproximadamente 2,5 cm de largura de cada peixe. Para a avaliação sensorial foi retirado o filé. O teste de aceitação foi conduzido com 52 provadores não treinados, usando-se escala hedônica estruturada de nove pontos para a...
Tipo: Folhetos
Palavras-chave: Piscicultura; Pirarucu; Tanque; Sistema de Cultivo; Arapaima gigas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127440

Agrobiodiversidade: sementes crioulas e seus guardiões.
Provedor de dados: 14
Autores: ANTUNES, I. F.; BEVILAQUA, G. A. P.; EICHOLZ, E. D.
Tipo: Parte de livro
Palavras-chave: Guardião; Semente crioula; Semente.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129536

Reciclagem animal: uma atividade essencial, segura e sustentável.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Carne bovina; Resíduo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125555

O Gênero Passiflora: diversidade, conservação e uso.
Provedor de dados: 14
Autores: FALEIRO, F. G.; OLIVEIRA, J. da S.; WALTER, B. M. T.; JUNQUEIRA, N. T. V.
Tipo: Parte de livro
Palavras-chave: Passifloraceae; Conservação; Maracujá.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124044

Maracuyá de la Caatinga: Passiflora cincinnata Mast.
Provedor de dados: 14
Autores: ARAÚJO, F. P.; MELO, N. F. de; AIDAR, S. de T.; FALEIRO, F. G.; JESUS, O. N. de.
Importancia económica y uso potencial; Caracteristicas morfológicas; Diversidad genética, cariológica y molecular; Características ecofisiológicas; Condiciones de clima y suelo para el cultivo; Cultivares disponibles; Importancia del cultivo y principales manejos culturales; Riego; Plagas y enfermedades; Cosecha y agregación de valor;
Tipo: Parte de livro
Palavras-chave: Diversidade genetica; Caatinga; Biodiversidade; Maracujá; Melhoramento Genético Vegetal; Agregação de Valor; Sistema de Cultivo; Passiflora edulis f. edulis; Passion fruits.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124089

Hortaliça não é só salada. Hipertensão.
Provedor de dados: 14
Autores: FRANZ, R. S.; LANA, M. M.
O que é hipertensão ou pressão alta? Hipertensão e dieta. Quais as hortaliças que podem ser consumidas por pessoas com hipertensão? Quais as formas de preparo de hortaliças que podem ser consumidas por pessoas com hipertensão? Trocas inteligentes para pessoas com hipertensão.
Tipo: Folders
Palavras-chave: Hortaliça; Saúde; Habito Alimentar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129103

Índices de conforto térmico animal em dois ambientes de produção pecuários na região Central de Minas Gerais.
Provedor de dados: 14
Autores: BORGHI, E.; ALVES, F. V.; ALMEIDA, R. G. de; GONTIJO NETO, M. M.; RESENDE, A. V. de; ABREU, S. C.
Em sistemas silvipastoris (IPF), a presença de árvores em renques e consorciadas com espécies forrageiras proporciona, além de diversificação de renda, fornecimento de serviços ambientais e condição microclimática diferenciada e mais favorável aos animais. Em locais com altas temperaturas durante todo o ano, como a região Central de Minas Gerais, este sistema de cultivo pode diminuir o estresse térmico animal e contribuir para o seu bem-estar, desde que implantado seguindo as orientações de espaçamento e espécies arbóreas adequadas. Para determinar quantitativamente o efeito das árvores sobre o microclima em pastagens, foram avaliados dois ambientes produtivos (sistema silvipastoril - IPF e pastagem solteira/ pleno sol), na Fazenda Lagoa dos Currais,...
Tipo: Folhetos
Palavras-chave: Estresse térmico; Sistema silvipastoril; IPF; Sistema integrado; Bovino; Temperatura; Bem-Estar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124669

Observação e modelagem das emissões dos gases de efeito estufa CO2, CH4 e N2O, em plantação de cana-de-açúcar.
Provedor de dados: 14
Autores: CABRAL, O. M. R.; PACKER, A. P.; ANDRADE, C. A. de; FREITAS, H. C.; RAMOS, N. P.; CUADRA, S. V.
Tipo: Parte de livro
Palavras-chave: Modelagem; Gases de efeito estufa; CO2; CH4; N2O; Cana-de-açúcar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131852

Manual de produção e controle de qualidade de produtos biológicos à base de bactérias do gênero Bacillus para uso na agricultura.
Provedor de dados: 14
Autores: MONNERAT, R.; MONTALVÃO, S. C. L.; MARTINS, E. S.; QUEIROZ, P. R.; SILVA, E. Y. Y. da; GARCIA, A. R. M.; CASTRO, M. T. de; ROCHA, G. T.; FERREIRA, A. D. C. de L.; GOMES, A. C. M. M.
Tipo: Folhetos
Palavras-chave: Controle microbiológico; Produto biológico; Bactéria.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122563

Ambitec-TICs: avaliação de impactos de tecnologias de informação e comunicação aplicadas à agropecuária.
Provedor de dados: 14
Autores: PINTO, D. M.; OLIVEIRA, P. de; MINITTI, A. F.; MENDES, A. M.; VILELA, G. F.; CASTRO, G. S. A.; ROCHA, J. D.; BOGIANI, J. C.; NOGUEIRA JUNIOR, L. R.; COSTA, C. C. da; NOVAES, R. M. L.; JESUS, I. R. D. de; FAE, V. A.; EDUARDO, M. de P.; FOSCHINI, M. M.; ALENCAR, J. R. DE; CRUZ, M. C. D.; GARCIA, E. P. DE. A.; JARDINE, J. G.; RODRIGUES, G. S.
Este trabalho tem o objetivo de apresentar um módulo metodológico derivado do sistema de indicadores Ambitec-Agro4 (Rodrigues et al., 2003, 2010), voltado à avaliação de impactos de inovações oriundas das TICs e à verificação de sua aplicabilidade a seis diferentes TPPS da Embrapa, em avaliações-piloto com seus desenvolvedores e usuários.
Tipo: Folhetos
Palavras-chave: Adoção de tecnologia; Balanço social; Metodologia; Inovação; Transferência de Tecnologia; Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123718

Cultivar BRS F63 Camila: ações de validação e promoção, e resultados.
Provedor de dados: 14
Autores: BORTOLETTO, A. C.; SILVA, G. O. da; PEREIRA, A. da S.; FELDBERG, N. P.; AZEVEDO, F. Q.; CASTRO, C. M.; EMYGDIO, B. M.
Disponível online em: www.abbabatatabrasileira.com.br/site/revista/edicao-56/
Tipo: Artigo na mídia
Palavras-chave: BRS F63 Camila; Batata; Transferência de Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127373

Manejo florestal 4.0 - passos para emprego de aeronaves remotamente pilotadas (drones) no planejamento florestal em nativas.
Provedor de dados: 14
Autores: FIGUEIREDO, E. O.; MELO JUNIOR, A. de; OLIVEIRA, L. C. de; OLIVEIRA, M. V. N. d'; FIGUEIREDO, S. M. de M.; SILVA. E. F. da; PAPA, D. de A.; SANTOS, E. K. M. dos; GOMEZ GUILLEN, M.; VERÁS, H. F. P.; GONÇALVES, R. J. F.; DUARTE, A. N. F.
Este estudo demonstra a viabilidade da fotogrametria digital com emprego das RPAs no planejamento e monitoramento florestal, apresentando as etapas necessárias a um inventário florestal semiautomatizado e os avanços na estimativa do DAP, área basal e volume do fuste. Esta publicação está de acordo com o Objetivo de Desenvolvimento Sustentável 15 (Vida Terrestre) que busca proteger, recuperar e promover o uso sustentável dos ecossistemas terrestres, gerir de forma sustentável as florestas, combater a desertificação, deter e reverter a degradação da terra e deter a perda de biodiversidade. Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas.
Tipo: Folhetos
Palavras-chave: Manejo florestal; Geotecnologias; Fotografía aérea; Drone; Inventario forestal; Manejo forestal; Aeronave remotamente pilotada (ARP); Vehículos aéreos no tripulados; Selo ODS 15; Aerofotogrametria; Planejamento Florestal; Inventário Florestal; Forest management; Forest inventory; Aerial photography; Unmanned aerial vehicles.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131488

Manejo Integrado de Pragas (MIP) na cultura da soja, Glycine max: viabilidade econômica e benefícios ambientais.
Provedor de dados: 14
Autores: VESSONI, I. C.; MARIANI, A.; AVILA, C. J.
Tipo: Resumo em anais e proceedings
Palavras-chave: Manejo integrado de praga; MIP; Controle Químico; Praga de Planta; Inseto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126650

Custo de produção de mandioca no sistema de derruba e queima utilizado por agricultores familiares de Marabá, mesorregião Sudeste Paraense.
Provedor de dados: 14
Autores: ALVES, R. N. B.; MODESTO JUNIOR, M. de S.; CRAVO, M. da S.
Este estudo caracteriza os custos e o sistema de produção de mandioca de derruba e queima praticado pelos agricultores familiares dos Projetos de Assentamento Lagedo 2 e Itacaiunas, do município de Marabá, validado para a mesorregião Sudeste Paraense pelos técnicos da extensão rural que atuam na região, e apresenta os principais indicadores de rentabilidade desse sistema de produção de mandioca.
Tipo: Folhetos
Palavras-chave: Derruba e queima; Mandioca; Manihot Esculenta; Sistema de Produção; Custo de Produção; Agricultura Familiar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127223

Identificação e manejo de doenças do cafeeiro (Coffea canephora).
Provedor de dados: 14
Autores: VIEIRA JUNIOR, J. R.; FONSECA, A. S. da; FREIRE, T. C.
Esta obra apresenta os principais sintomas, fatores predisponentes e medidas de manejo para 12 doenças da cultura do café. Além de conter lista atualizada e revisada dos principais grupos químicos recomendados para o manejo dessas enfermidades e informações para eventuais medidas para controle de intoxicações com esses produtos.
Tipo: Parte de livro
Palavras-chave: Coffea Canephora; Doença de Planta; Identificação; Manejo; Plant diseases and disorders; Pathogen identification; Control methods; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126495

Projeções para o Mercado de Carne Bovina do Brasil: 2029/2030.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125601

Efeito de calagem e adubação fosfatada corretiva sobre variáveis tecnológicas e a produtividade da cana-de-açúcar em Neossolo Quartzarênico.
Provedor de dados: 14
Autores: OLIVEIRA, T. C. C. de; KURIHARA, C. H.; STAUT, L. A.; SILVA, C. J. da.
Tipo: Resumo em anais e proceedings
Palavras-chave: Fauna Edáfica; Fertilidade do Solo; Manejo do Solo; Cana de Açúcar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126644

Metodologia para avaliação preliminar da logística para uso de lodos de tratamento de água e esgoto na indústria cerâmica e cimentícia no Rio Grande do Sul.
Provedor de dados: 14
Autores: SPIERING, V.; CUNHA, H. N. da; SIQUEIRA, R. de O.; MIURA, A. K.; COUTO, O. F. V.; SOUSA, L. P. de; GUARINO, E. de S. G.
O objetivo desta publicação é apresentar um método para estimar a distância entre as estações de tratamento de água e esgoto (ETAs/ETEs) gerenciadas pela Companhia Riograndense de Saneamento (Corsan) e os polos produtores de cerâmica e cimento no estado do Rio Grande do Sul (RS).
Tipo: Folhetos
Palavras-chave: Lodo Residual.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128566

EaD on-line no setor agropecuário: oportunidades e desafios.
Provedor de dados: 14
Autores: KATO, H. C. de A.; LOPES, K. G.; SOUSA, D. N. de.
Este documento busca compreender as oportunidades e os desafios da educação a distância on-line e sua relação com o avanço no setor agropecuário. Para isso, analisou o funcionamento da EaD, passando por sua trajetória histórica até sua aplicação no setor agropecuário. A importância da sistematização das conquistas e dos gargalos encontrados para o avanço na produção e na oferta da EaD on-line de qualidade também será abordada neste estudo. Para isso, utilizou-se de revisão de literatura para problematizar as questões supracitadas.
Tipo: Folhetos
Palavras-chave: Educação a distância; Ensino no campo; Educação Agrícola; Capacitação; Transferência de Tecnologia; Online courses; Agricultural education; Educational technology; Technology transfer.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125677

O que está acontecendo com a relação de troca bezerro/boi gordo?
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128697

COMO montar um desidratador de alimentos de baixo custo: programa 14: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana ensina como fazer um desidratador de alimentos, gastando apenas trinta por cento do que se pagaria por um similar industrial, com a mesma capacidade. Quem fala sobre essa tecnologia, que supre uma demanda da pequena produção, é o pesquisador Félix Cornejo, da Embrapa Agroindústria de alimentos. Noções de Boas Práticas de Processamento de Alimentos também estão no programa, que ainda informa como baixar o manual "Construa Você Mesmo um Desidratador de Alimentos", no site da Embrapa.
Tipo: Gravações de som
Palavras-chave: Desidratador; Pequena produção; Alimento; Processamento; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121996

Poda, sistemas de condução e raleio de frutos.
Provedor de dados: 14
Autores: SCARPARE FILHO, J. A.; SILVA, S. R. da; GIMENS, I. M.; MAYER, N. A.
Tipo: Parte de livro
Palavras-chave: Raleio de frutos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128688

Agricultura Irrigada: um breve olhar
Provedor de dados: 14
Essa obra foi construída com base nos textos enviados pelos palestrantes de 13 Webinars produzidos pelo Inovagri. O material está dividido em 13 Temas. Cada Tema representa o assunto que foi discutido em um Webinar específico. Cada palestra do webinar foi transformada em um capítulo do livro. Ao todo 57 capítulos compõe o livro. O moderador de cada Tema foi responsável por escrever a apresentação do Tema, ou seja, foi responsável por mostrar a importância do Tema para o desenvolvimento da agricultura irrigada. Os capítulos foram estruturados de forma a terem entre 3 e 5 páginas, com os seguintes tópicos: apresentação do capítulo, introdução, visão do capítulo e conclusão. Essa obra se constitui em uma rica coletânea de informações que, com certeza,...
Tipo: Livros
Palavras-chave: Irrigação; Agricultura; Recurso Hídrico; Potencial Hídrico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127536

GEOMATOPIBA: plataforma para agropecuária da região: programa 46: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o GeoMatopiba, uma plataforma que disponibiliza, pela internet, de forma interativa e integrada, mapas e dados sobre a região formada por partes dos estados do Maranhão, Tocantins, Piauí e Bahia. A especialista em dados e informação tecnológica Daniela Maciel, da Embrapa Territorial explica como essa ferramenta pode ajudar o produtor, os extensionistas e também os gestores públicos e privados.
Tipo: Gravações de som
Palavras-chave: Informação tecnológica; Gestor público; Agropecuária; Extensionista; Produtor; Informática.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127217

Brasil exporta US$12 milhões em peixes de cultivo: tilápia lidera.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; ROCHA, H. S.
A piscicultura é o segundo mais importante segmento das exportações de pescado do Brasil, representando quase US$12 milhões (4% do total), em 2019.
Tipo: Artigo na mídia
Palavras-chave: Exportação; Peixe; Tilápia; Economia Pesqueira.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120323

Moko da bananeira (Ralstonia solanacearum Raça 2).
Provedor de dados: 14
Autores: SCHURT, D. A.; PELZER, G. Q.; BARBOSA, R. N. T.; SOUZA, G. R. de.
Tipo: Folders
Palavras-chave: Banana; Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123461

Gravioleira.
Provedor de dados: 14
Autores: VIÉGAS, I. de J. M.; ARAUJO, S. M. B.; FRAZÃO, D. A. C.; RODRIGUES, J. E. L. F.
Tipo: Parte de livro
Palavras-chave: Graviola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127326

Uso de substâncias húmicas para melhoramento de um latossolo amarelo distrocoeso.
Provedor de dados: 14
Autores: COELHO, E. F.; XAVIER, F. A. da S.; PEREIRA, B. L. da S.
Tipo: Folhetos
Palavras-chave: Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127757

Como o jacaré-do-pantanal, Caiman yacare, resiste a períodos secos na região central do Pantanal.
Provedor de dados: 14
Autores: CAMPOS, Z.; MOURAO, G.
Esta publicação mostra os extremos da capacidade de sobrevivência do jacaré-do-pantanal, frente a ameaça da escassez hídrica na região pantaneira. Desde 1986, os autores desta ublicação estudam a espécie que na época enfrentava sérios problemas de conservação, devido a caça clandestina que durou até 1990. Mas esse período foi de grande oferta de ambientes aquáticos, com grandes enchentes, mantendo a resiliência da população frente a essa ameaça. De lá para cá, a seca tem se intensificado na Planície Pantaneira causando redução dos ambientes aquáticos e levando muitos jacarés a morte, apesar do seu comportamento adaptativo para sobreviver ao estresse hídrico. A publicação é um sinal de alerta, frente as imagens dos jacarés lutando pela vida, nos conduzindo...
Tipo: Folhetos
Palavras-chave: Jacaré; Habitat; Comportamento Animal; Pantanal; Caiman yacare; Behavioral resistance.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/812030

Bioindicadores de qualidade do solo sob diferentes níveis de palhiço remanescente na cultura da cana-de-açúcar, em Dourados, MS.
Provedor de dados: 14
Autores: JESUS, E. de J.; TOMAZI, M.; SILVA, C. J. da.
Tipo: Resumo em anais e proceedings
Palavras-chave: Palha; Cana de Açúcar; Qualidade; Solo; Colheita Mecânica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126576

Desempenho agronômico de variedades de mangueira em cultivo orgânico na Chapada Diamantina na Bahia.
Provedor de dados: 14
Autores: FONSECA, N.; PADUA, T. R. P. de; LEDO, C. A. da S.; VIEIRA, R. S.
Com o intuito de desenvolver um sistema orgânico para produção de manga, objetivou-se avaliar o desempenho agronômico de diferentes va-riedades de mangueira, visando à seleção de variedades com potencial para processamento e consumo in natura. O trabalho foi conduzido na Estação Experimental da Empresa Bioenergia Orgânicos, sediada no município de Lençóis, BA, em delineamento inteiramente casualisado com 19 tratamentos (variedades), seis repetições e uma planta por parcela. Avaliaram-se as ca-racterísticas morfológicas da planta e físico-químicas dos frutos. No período avaliado, de um a sete anos de idade, as variedades Palmer e Haden apre-sentaram os maiores desenvolvimento das plantas, e as variedades Papo de Peru, Juazeiro, Beta, Favo de Mel e Imperial,...
Tipo: Folhetos
Palavras-chave: Manga; Mangifera Indica; Agricultura Orgânica; Produção Orgânica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121931

Caracterização da resistência de genótipos de arroz irrigado ao pé-preto (Gaeumannomyces graminis) em condições de campo.
Provedor de dados: 14
Autores: NUNES, C. D. M.; SILVA-LOBO, V. L. de.
O pé-preto, também conhecido por mal-do-pé, causado pelo fungo Gaeumannomyces graminis var. Graminis (Ggg) é uma doença emergente na cultura do arroz no Brasil, especialmente no sistema de cultivo irrigado.
Tipo: Folhetos
Palavras-chave: Resistência de Genótipos; Arroz Irrigado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136954

Quanto ainda existe de vegetação nativa no Bioma Amazônia?
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000982341/quanto-ainda-existe-de-vegetacao-nativa-no-bioma-amazonia.html.
Tipo: Artigo na mídia
Palavras-chave: Cálculos georreferenciados.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129632

Adubação do arroz irrigado com N, P e K em várzeas do Cerrado.
Provedor de dados: 14
Autores: SILVA, M. A. S. da; STONE, L. F.; SANTOS, A. B. dos; CARVALHO, M. da C. S.; FERREIRA, C. M.; NASCENTE, A. S.; SANTOS, B. M. dos.
Elencamos neste trabalho a função e a importância dos nutrientes absorvidos em maior quantidade pela cultura do arroz, nitrogênio (N), fósforo (P) e potássio (K), destacando que o N e o K aparecem nas plantas em teores mais elevados.
Tipo: Folhetos
Palavras-chave: Arroz Irrigado; Oryza Sativa; Cerrado; Fósforo; Potássio; Adubação; Nitrogênio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121918

Hortaliça como comprar, conservar e consumir: inhame.
Provedor de dados: 14
Autores: SANTOS, F. F. dos; MATOS, M. J. F.; TAVARES, S. A.; MELO, M. F. de; LANA, M. M.
Inhame. Como comprar. Como conservar. Como consumir. Creme de inhame. Bolo de inhame.
Tipo: Folders
Palavras-chave: Inhame; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125887

Hortaliça como comprar, conservar e consumir: tomate.
Provedor de dados: 14
Autores: LUENGO, R. de F. A.; MATOS, M. J. L. F.; TAVARES, S. A.; MELO, M. F. de; LANA, M. M.; SANTOS, F. F. dos.
Tomate. Como comprar. Como conservar. Como consumir. Geleia de tomate. Farofa crua de tomate.
Tipo: Folders
Palavras-chave: Tomate; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126249

Custos de produção de leite de cabra no polo do Cariri Paraibano, PB.
Provedor de dados: 14
Autores: LUCENA, C. C. de; MARTINS, E. C.; BOMFIM, M. A. D.
A determinação dos custos de produção, em conjunto com informações detalhadas das propriedades, no que diz respeito às suas benfeitorias e infraestruturas empregadas na atividade produtiva, bem como às características zootécnicas do rebanho, no caso da pecuária, tem sido uma ferramenta importante na análise de viabilidade econômica dos sistemas de produção nos diferentes polos de produção do país. A determinação dos custos de produção da caprinocultura leiteira na região do Cariri Paraibano realizado em Monteiro-PB no mês de outubro de 2018, apresentada nesta nota técnica, foi obtido utilizando a metodologia de painéis, onde especialistas, técnicos e produtores, estimam os custos a partir do referencial tecnológico de uma propriedade modal da região, ou...
Tipo: Artigo na mídia
Palavras-chave: Caprinocultura; Produção Leiteira; Custo de Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128488

O Covid-19 e a fruticultura do VSF.
Provedor de dados: 14
Autores: LIMA, J. R. F. de.
Em dezembro de 2019, na cidade de Wuhan, na China, o vírus SARS--CoV-2 (Covid-19) foi identificado pela primeira vez em seres huma-nos, se alastrando rapidamente por diversos países. Em 11 de março de 2020, a Organização Mundial de Saúde (OMS) declarou pandemia, começando a quarentena. Neste cenário, a pergunta imediata foi: qual o impacto desse isolamento social na fruticultura irrigada do Vale do São Francisco ? VSF, setor que mo-vimenta os estados de Pernambuco e Bahia, no ?miolão? do Semiárido?
Tipo: Artigo na mídia
Palavras-chave: Vale do Sao francisco; Pandemia; Covid 19; Fruticultura; Importação; Mercado; Fruits; Marketing costs; Market economy; Market prices.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130423

Seleção em progênies de cajueiro para a formação de novos clones.
Provedor de dados: 14
Autores: MELO, D. S.; VIDAL NETO, F. das C.; BARROS, L. de M.
Tipo: Folhetos
Palavras-chave: Cajueiro; Anacardium Occidentale; Clone.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128412

Pesquisa contribui para expansão do mercado de peixes nativos.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000991888/pesquisa-contribui-para-expansao-do-mercado-de-peixes-nativos.html.
Tipo: Artigo na mídia
Palavras-chave: Psicultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123593

Impacto do novo coronavírus nas exportações e no preço da arroba do boi gordo.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Análise da semana de 10 a 17 de abril.
Tipo: Folders
Palavras-chave: Coronavírus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125476

Infravermelho: aliado da qualidade de frutas.
Provedor de dados: 14
Autores: FREITAS, S. T. de.
A Embrapa Semiárido (Petrolina-PE) vem desenvolvendo estudos com uso do Infraverme-lho Próximo para determinação do estádio ideal de colheita da manga nas áreas irrigadas do Submédio do Vale do Rio São Francisco, região que possui mais de 25 mil hectares cultivados, e é a principal exporta-dora da fruta no País. Neste estudo, equipamentos NIR portáteis e de baixo custo, estão sendo avaliados para a precisão na determinação da qualidade das frutas, visando a recomendação de aparelhos que possam ser introduzidos na rotina das empresas produtoras de manga. Os equipamentos recomendados estão sendo então utilizados para estabe-lecer com precisão o ponto em que a manga deve ser retirada da planta a fim de atingir a alta qualidade de consumo após 20 dias, tempo...
Tipo: Artigo de periódico
Palavras-chave: NIR; Características químicas da fruta; Características físicas da fruta; Radiação eletromagnética do infravermelho; Fruta; Manga; Qualidade; Colheita; Pós-Colheita; Postharvest technology; Mangoes.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130021

Mapa de biomassa seca acima do solo da Terra Indígena Kaxinawá Nova Olinda, município de Feijó, estado do Acre.
Provedor de dados: 14
Autores: OLIVEIRA, M. V. N. d'; MELO, A. W. F. de; AMARAL, E. F. do; HAVERROTH, M.
O projeto da Embrapa Acre junto à TIKNO buscou estudar o etnoconhecimento e as práticas ligados aos recursos naturais e à agrobiodiversidade, promover sua valorização por meio de ações de intercâmbio e troca de saberes, investir em melhorias dos sistemas produtivos e extrativistas, na conservação de recursos genéticos e nos serviços ecossistêmicos. Esta publicação está de acordo com os Objetivos de Desenvolvimento Sustentável 13 (Ação contra a Mudança Global do Clima), 15 (Vida Terrestre) e 17 (Parcerias e Meios de Implementação). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas.
Tipo: Folhetos
Palavras-chave: Uso de la tierra; Efecto invernadero; Gases de invernadero; Reservorios de carbono; Povos indígenas; Pueblos indígenas; Forest maps; Mapas forestales; Biomasa aérea; Servicios ecosistémicos; Sistema de Incentivos a Serviços Ambientais (Sisa); Terra Indígena Kaxinawá de Nova Olinda (TIKNO); Feijó (AC); ISA Carbono; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Selo ODS 15; Selo ODS 13; Selo ODS 17; Uso da Terra; Efeito Estufa; Carbono; Planejamento Florestal; Biomassa; Parte Aérea; Mapa; Políticas Públicas; Land use; Greenhouse effect; Greenhouse gases; Carbon sinks; Indigenous peoples; Aboveground biomass; Public policy; Ecosystem services.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121756

BIOGÁS: energia para as propriedades rurais: programa 41: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o Biogás, uma alternativa para o produtor rural e as agroindústrias aproveitarem os resíduos gerados em suas atividades, de forma sustentável, ambientalmente segura e lucrativa. O pesquisador Rossano Gambeta, da Embrapa Agroenergia, explica como, a partir de um biodigestor, é possível produzir o biogás e os biofertilizantes, de modo a reduzir os gastos com combustíveis e adubos químicos.
Tipo: Gravações de som
Palavras-chave: Adubo químico; Biogás; Biodigestor; Biofertilizante; Combustível; Energia; Propriedade Rural.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126166

BRS FC409: cultivar de feijoeiro-comum com alto valor comercial e nutricional, resistência à murcha de Fusarium e à murcha de Curtobacterium.
Provedor de dados: 14
Autores: PEREIRA, H. S.; MELO, L. C.; SOUZA, T. L. P. O. de; FARIA, L. C. de; CABRERA DIAZ, J. L.; CARVALHO, H. W. L. de; MELO, C. L. P. de; COSTA, A. F. da; MAGALDI, M. C. de S.; KNUPP, A. M.; POSSE, S. C. P.; COSTA, J. G. C. da; WENDLAND, A.; ABREU, A. de F. B.; PEREIRA FILHO, I. A.; MARTINS, M.; ALBRECHT, J. C.; ALMEIDA, V. M. de; GUIMARÃES, C. M.; BRAZ, A. J. B. P.; MARANGON, M. A.; CARVALHO, A. J. de; MELO, P. G. S.; TRINDADE, N. L. S. R.; SOUZA, N. P. de; FARIA, J. C. de; CALGARO, M.; AGUIAR, M. S. de.
A cultivar de feijão-comum BRS FC409 tem grãos do tipo carioca, com alto valor comercial e nutricional, apresentando bom nível de resistência à murcha de Fusarium e à murcha de Curtobacterium, e resistência intermediária à antracnose, ao crestamento-bacteriano-comum e à mancha-angular. É indicada para semeadura nos seguintes estados e épocas de cultivo: época das águas, da seca e de inverno, nos estados de Goiás, Espírito Santo, Rio de Janeiro, Bahia, Mato Grosso, Tocantins e no Distrito Federal; época das águas e da seca, em Mato Grosso do Sul, Paraná, Santa Catarina, São Paulo e Rio Grande do Sul; e época das águas, em Sergipe, Alagoas e Pernambuco.
Tipo: Folhetos
Palavras-chave: Murcha de Curtobacterium; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Murcha de Fusarium; Beans; Plant breeding; Disease resistance; Varietal resistance.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124686

Hortaliça não é só salada. Lavagem e sanitização.
Provedor de dados: 14
Autores: LANA, M. M.
Qualidade que não se vê: qualidade microbiológica. Contaminação microbiológica: doença de planta x doença de gente. Quais organismos prejudiciais à saúde podem ser transmitidos por alimentos. Como saber se a hortaliça está contaminada. Cuidados na hora de comprar as hortaliças. Cuidados na hora de preparar a hortaliça. Quando sanitizar a hortaliça.
Tipo: Folders
Palavras-chave: Hortaliça; Higiene de Alimento; Segurança Alimentar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126538

Identificação de demandas tecnológicas da cafeicultura junto a técnicos da extensão rural em Rondônia.
Provedor de dados: 14
Autores: ROSA NETO, C.; ARAUJO, L. V. de; SILVA, F. de A. C.
Este documento registra os resultados do trabalho realizado junto a uma amostra de técnicos da Emater-RO, visando a identificação de demandas tecnológicas da cafeicultura, a partir da percep-ção desses técnicos, com base na sua vivência e experiência no processo de assistência técnica aos produtores assistidos pela Emater-RO. Apresentadas de forma concisa e objetiva, essas de-mandas representam subsídios importantes para a Embrapa no estabelecimento de suas priorida-des de pesquisa para o setor cafeeiro do estado.
Tipo: Folhetos
Palavras-chave: Agricultural extension; Emater (RO); Rondônia; Amazônia Ocidental; Western Amazon; Cafeicultura; Pratica Cultural; Extensão Rural; Adoção de Inovações; Transferência de Tecnologia; Coffee beans; Plant cultural practices; Innovation adoption; Technology transfer; Extension agents.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123948

Novo hábito alimentar de Anacampsis phytomiella (Lepidoptera: Gelechiidae) em cajueiro e seu controle biológico natural.
Provedor de dados: 14
Autores: MESQUITA, A. L. M.; MOTA, M. do S. C. de S.
Tipo: Parte de livro
Palavras-chave: Traça-da-castanha; Parasitismo natural; Pest; Natural parasitism; Cashew nut borer moth; Anacardium Occidentale; Praga; Comportamento de Variedade; Anacardium; Behavior.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128364

Validação hidrológica do "Camalhão Alto de Base Larga" como tecnologia conservacionista aplicada à cultura do tabaco.
Provedor de dados: 14
Autores: DENARDIN, J. E.; MARCON, G. P.; FAGANELLO, A.; LEMAINSKI, J.; BACK, A. J.; JUNQUEIRA, B. R.; OLIVEIRA, V. B.
O "Manejo de Solo com Camalhão Alto de Base Larga" é uma prática conservacionista associada ao sistema plantio direto, preparo reduzido do solo e preparo convencional do solo, usual em pe-quenos estabelecimentos rurais, na região Sul do Brasil. Integrado a espécies produtoras de grãos e cobertura de solo, como trigo (Triticum aestivum), centeio (Secale cereale), aveia preta (Avena strigosa), aveia branca (Avena sativa L.), milheto (Pennisetum glaucum L.), capim Sudão (Sorghum sudanense), sorgo (Sorghum spp.), mucuna (Mucuna spp.) e braquiária (Brachiaria spp.), o ?cama-lhão alto de base larga? vem sendo aplicado ao cultivo de tabaco (Nicotiana tabacum), soja (Glycine max L.), milho (Zea mays) e feijão (Phaseolus vulgaris) durante as estações de primavera e...
Tipo: Folhetos
Palavras-chave: Trigo (Triticum aestivum); Tabaco; Camalhão Alto de Base Larga; Preparo reduzido do solo; Preparo convencional do solo; Aveia preta; Aveia branca; Capim sudão; Braquiária; Solo; Manejo do Solo; Manejo; Camalhão; Trigo; Centeio; Milheto; Sorgo; Mucuna.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124791

Covid-19 já impacta custo de produção. ICPLeite registrou alta de 0,23% no mês de março.
Provedor de dados: 14
Autores: LANA, M. S.; MARTINS, P. do C.; CARNEIRO, A. V.
Em março, produzir leite ficou mais caro 0,23% em relação a fevereiro. O grupo Qualidade do Leite apresentou a maior elevação de preços de insumos, de 1,69% num só mês. Formado por insumos de higiene e limpeza, este grupo foi impactado pelos primeiros dias de mobilização ao enfrentamento Covid-19. Também o mercado de commodities afetou o custo de produção. Os preços de milho e soja continuaram a crescer em março, impactando o grupo Concentrado em 0,50%. A valorização do dólar fez com que o grupo Sanidade tivesse uma elevação de preços de 0,33%. Também o grupo Sal mineral registrou crescimento de preços de 0,18%. Veja essa análise completa no Boletim ICPLeite de março de 2020.
Tipo: Artigo na mídia
Palavras-chave: Qualidade do leite; Sal mineral; Covid-19.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121572

Respostas fisiológicas do dendezeiro cultivado em Parnaíba, Piauí.
Provedor de dados: 14
Autores: MESSIAS, U.; VELOSO, M. E. da C.; ANTONINI, J. C. dos A.; VASCONCELOS, L. F. L.; ARAUJO, E. C. E.; SOUZA, M. O. P.; SILVA, P. H. S. da.
O objetivo do trabalho foi avaliar a taxa fotossintética líquida de CO2, a condutância estomática, a concentração intracelular de CO2, a taxa de transpiração e a eficiência do uso da água de dendezeiro em diferentes níveis de disponibilidade de água no solo e em épocas do ano. O experimento foi conduzido na Unidade de Execução de Pesquisa e Desenvolvimento da Embrapa Meio-Norte, em Parnaíba, Piauí. Utilizou-se o delineamento experimental em blocos casualizados, em esquema de parcelas subdivididas. As subparcelas foram formadas pelas cultivares BRS C2501 e BRS C2528. As respostas fisiológicas das cultivares BRS C2501 e BRS C2528 foram maiores no período chuvoso, quando essas cultivares foram submetidas a diferentes fatores de disponibilidade de água no solo...
Tipo: Folhetos
Palavras-chave: Fotossíntese; Transpiração Vegetal; Irrigação; Elaeis Guineensis.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132272

Agricultura da região de Cerrados: eficiência econômica, produtividades e perspectivas.
Provedor de dados: 14
Autores: SOUZA, G. da S. e; GOMES, E. G.; ALVES, E. R. de A.
Tipo: Parte de livro
Palavras-chave: Produção agropecuária; Agricultura; Cerrado; Agronegócio; Produtividade; Tecnologia; Censo Agropecuário.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137653

Produção animal e a sustentabilidade que não deixa ninguém para trás.
Provedor de dados: 14
Autores: MEDEIROS, S. R. de.
O trabalho ?Alimentos de origem animal: Um problema de sustentabilidade ou uma solução da desnutrição e da sustentabilidade? Perspectiva conta?, abre nossos olhos para a importância dos produtos de origem animal na busca por um mundo melhor. Os autores são do Feed the Future Innovation Lab, da Universidade da Florida, nos EUA. Seu maior mérito é mostrar como a adoção de uma visão mais ampla de sustentabilidade e o abandono de preconceitos sobre a produção animal são fundamentais para avançarmos para um mundo mais próspero e, ao mesmo tempo, menos desigual.
Tipo: Artigo na mídia
Palavras-chave: Sustentabilidade; AOA; ODS; Carne bovina; GEE; Plano ABC; Produção Animal; Gado de Corte.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129251

Sorgo granífero e forrageiro.
Provedor de dados: 14
Autores: VELOSO, C. A. C.
Tipo: Parte de livro
Palavras-chave: Sorgo Forrageiro; Sorgo Granífero.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127267

Metodologia para avaliar os cursos técnicos da Rede Federal, com enfoque na sustentabilidade e com conexão aos indicadores da SETEC/MEC.
Provedor de dados: 14
Autores: CASSIANO, E. B. M.; ABREU, U. G. P. de; AGUIAR, W. M. de.
O presente artigo tem como objetivo desenvolver uma metodologia com o uso de um instrumento de avaliação, com ponto de vista da sustentabilidade e conexão com os indicadores da SETEC/MEC para os cursos técnicos. O ensino técnico federal no país começou em 1909, no governo de Nilo Peçanha, com o objetivo de habilitar os filhos dos desfavorecidos de fortuna com o indispensável preparo técnico e intelectual, a fim de que desenvolvessem hábitos de trabalho útil, que os afastaria da ociosidade ignorante e da escola do vício e do crime. E, na década de 1940, também foi de suma importância para a educação profissional brasileira, com o surgimento do Sistema S.A importância social do ensino profissional não diminuiu, ao contrário, nos dias de hoje para o mundo do...
Tipo: Parte de livro
Palavras-chave: Aprendizagem; Formação Profissional; Ensino Médio; Learning; Professional education.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120224

Pragas e doenças em pastagens na Amazônia.
Provedor de dados: 14
Autores: TEIXEIRA, C. A. D.; VIEIRA JUNIOR, J. R.; COSTA, J. N. M.
É necessário e urgente identificar e manejar as pastagens, a fim de minimizar os impactos negativos envolvidos na ocorrência e disseminação de pragas. Este capítulo tem por objetivo discutir o tema com foco em pastagens para produção leiteira na Amazônia.
Tipo: Parte de livro
Palavras-chave: Produção Leiteira; Pastagem; Manejo; Praga de Planta; Milk production; Pasture management; Plant pests; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126182

Banco de germoplasma de Passiflora L. 'Flor da Paixão': caracterização fenotípica, diversidade genética, fotodocumentação e herborização.
Provedor de dados: 14
Este livro apresenta a caracterização fenotípica, a diversidade genética, a fotodocumentação e o registro do processo de herborização dos principais acessos de Passiflora spp. do Banco de Germoplasma ?Flor da Paixão?. Foram caracterizados 124 acessos de Passiflora utilizando 48 descritores qualitativos multicategóricos (23 de folha e 25 de flor). Foram estimadas distâncias genéticas entre os acessos, realizadas as análises de agrupamento e de diversidade genética. Os acessos analisados neste trabalho envolvem as principais espécies, híbridos e cultivares utilizadas no programa de melhoramento genético dos maracujás (Passiflora spp.) realizado na Embrapa. Acreditamos que as informações apresentadas neste livro são úteis para profissionais envolvidos em...
Tipo: Livros
Palavras-chave: Diversidade genética; Fotodocumentação; Banco de Germoplasma; Fenótipo; Maracujá; Seleção Genética; Variação Genética.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124043

Novidades da Embrapa Uva e Vinho durante a pandemia.
Provedor de dados: 14
Autores: FIALHO, V. M. Z. B.
Desdeo mêsde março,comomedidapreventivaparaevitara disseminaçãodo coronavírus,partedosprofissionaisda EmbrapaUvae Vinhopassoua atuaremteletrabalhoou emsistemade revezamento,paragarantiraçõesessenciaisdepesquisae transferênciade tecnologiae o atendimentoao público.
Tipo: Artigo na mídia
Palavras-chave: CNPUV; Novidades; Pandemia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125639

Cupuaçuzeiro.
Provedor de dados: 14
Autores: VIÉGAS, I. de J. M.; FRAZÃO, D. A. C.; ARAUJO, S. M. B.
Tipo: Parte de livro
Palavras-chave: Cupuaçu; Theobroma Grandiflorum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127324

Porque a ONU criou esta data dando destaque para as abelhas?
Provedor de dados: 14
Autores: MALAGODI-BRAGA, K. S.
Resumo: A maioria das plantas cultivadas depende da polinização animal para a produção comercial ou dela se beneficiam em termos de qualidade e produtividade, sendo as abelhas os polinizadores efetivos da maioria dos cultivos. Inúmeros trabalhos publicados, porém, têm demonstrado que a alteração e a destruição de habitats naturais, juntamente com outros fatores como os agrotóxicos, estão reduzindo a diversidade e a abundância de abelhas no mundo e, consequentemente, a produtividade agrícola.
Tipo: Artigo na mídia
Palavras-chave: Abelha; Biodiversidade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129499

Variabilidade de cor e compostos fenólicos em acessos de milho pigmentados.
Provedor de dados: 14
Autores: PAES, M. C. D.; TEIXEIRA, F. F.; RIBEIRO, E. P.
Diferenças na coloração de grãos de milho já foram descritas na literatura, considerado um atributo importante para a determinação do uso desses materiais, sendo os genótipos de milho de coloração mais intensa, como vermelha, roxa e azul, os preferidos nas comunidades tradicionais da América Latina e para o desenvolvimento de alimentos funcionais e corantes naturais. Apesar da associação da cor com a composição química dos grãos de milho, pouco ainda é conhecido sobre as diferenças em teores de compostos bioativos de importância biológica e industrial, em especial compostos fenólicos, que conferem cor aos grãos em genótipos conservados em banco de germoplasma brasileiro. Assim, o objetivo deste trabalho foi caracterizar acessos de milho com grãos de...
Tipo: Folhetos
Palavras-chave: Fenólicos totais; Análise de cor; Capacidade antioxidante; Alimento funcional; Zea Mays; Pigmento; Propriedade Físico-Química; Antioxidante.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126625

Características gerais da paisagem do Cerrado.
Provedor de dados: 14
Autores: SANO, E. E.; BETTIOL, G. M.; MARTINS, E. de S.; VASCONCELOS, V.; BOLFE, E. L.; VICTORIA, D. de C.
Tipo: Parte de livro
Palavras-chave: Cerrado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124107

Por que os ovos não são contaminados por Salmonela?
Provedor de dados: 14
Autores: DUARTE, S. C.; WALTER, E. H. M.
Tipo: Artigo na mídia
Palavras-chave: Produção de ovos; Qualidade do ovo; Alimento seguro; Controle Microbiano; Microrganismo; Salmonella; Contaminação Bacteriana; Segurança Alimentar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125661

Uso do modelo de balanço de carboidratos na safra 2020/21 nos Campos de Cima da Serra.
Provedor de dados: 14
Autores: RUFATO, A. de R.
A compreensão da interação entre fatores climáticos e o crescimento e desenvolvimento das plantas é fundamental para definir as estratégias de manejo dos pomares de macieira. Com o objetivo de auxiliar na tomada de decisão quanto ao raleio químico, a Embrapa Uva e Vinho publicou semanalmente durante o período do manejo o Boletim sobre o raleio químico da macieira para os municípios de Vacaria, Bom Jesus, Caxias do Sul e São José dos Ausentes no Rio Grande do Sul e para os municípios de São Joaquim e Fraiburgo, no Estado de Santa Catarina, disponível em : http://bit.ly/boletimraleion06 .
Tipo: Artigo na mídia
Palavras-chave: Carboidratos; Maçã; Clima; Clima Tropical; Climatologia; Fruta de Clima Temperado; Safra.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127834

Torta de algodão: processo de destoxificação de torta de semente de algodão.
Provedor de dados: 14
Autores: SIQUEIRA, F. G. de.
Tipo: Folders
Palavras-chave: Destoxificação; Fungo; Algodão; Semente.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123234

The amazing untold history of soil biodiversity and our welfare.
Provedor de dados: 14
Autores: BALIEIRO, F. de C.
9th place of the IUSS-FAO-GSP Children's Book Contest on Soil Biodiversity, 2020.
Tipo: Folhetos
Palavras-chave: Solo; Biodiversidade; Soil; Biodiversity.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137167

Dimensão territorial das áreas destinadas à preservação nativa em propriedades rurais do estado de Rondônia.
Provedor de dados: 14
Autores: CASTRO, G. S. A.; FERREIRA, R. R. M.; OSHIRO, O. T.; CARVALHO, C. A. de.
O Cadastro Ambiental Rural (CAR) disponibiliza os dados numéricos e cartográficos sobre a preservação do meio ambiente no mundo rural (Serviço Florestal Brasileiro, 2020). É uma plataforma a mais, além do Censo Agropecuário do Instituto Brasileiro de Geográfica e Estatística (IBGE), que contém informações declaratórias sobre o levantamento do uso das terras nos estabelecimentos agropecuários (IBGE, 2006, 2017). Há uma grande demanda da dinâmica espacial e temporal da agricultura brasileira por essas informações, pois parte dos dados ficam rapidamente desatualizados (Miranda et al., 2018a). A inteligência e a gestão territorial são ferramentas inovadoras e complementares, que possibilitam a compreensão da dinâmica espaçotemporal do desenvolvimento rural e...
Tipo: Folhetos
Palavras-chave: Cadastro ambiental rural; Código florestal; Preservação ambiental.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126420

Como vão as queimadas pelo Brasil e países vizinhos.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://revistaoeste.com/como-vao-as-queimadas-pelo-brasil-e-paises-vizinhas/
Tipo: Artigo na mídia
Palavras-chave: Dados de queimadas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125129

O Tocantins no contexto do Sistema de Inteligência Estratégica da Agropecuária Brasileira.
Provedor de dados: 14
Breve análise sobre as rotas para o agronegócio nacional, envolvendo o estado do Tocantins. O estado é parte do Matopiba e encontra-se geograficamente proxímo da região do Centro Oeste, sendo cortado pela Ferrovia Norte-Sul e dispõe de dois terminais de recebimento de cargas, em Gurupi e Porto Nacional.
Tipo: Folders
Palavras-chave: Logística agropecuária; Análise logística; Modais de transportes; Logística.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122590

DOENÇAS do mamoeiro: programa 27: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana você tem um encontro marcado com o Prosa Rural, para saber sobre as doenças do mamoeiro e suas formas de controle. As doenças do mamoeiro podem afetar folhas, ramos, raízes, flores e frutos. E podem causar 100% de danos, trazendo perdas na produção, comercialização e exportação de frutos. Participa do programa o pesquisador da Embrapa Tabuleiros Costeiros, Antônio Alberto Rocha.
Tipo: Gravações de som
Palavras-chave: Doença de Planta; Mamão; Perda da Produção; Comercialização; Exportação; Papayas; Marketing.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124112

Juventudes, identidades e saberes agroecológicos: relatos sobre experiência e diálogos entre o Pedagroeco e a Pedagogia Griô no Nordeste.
Provedor de dados: 14
Este livro tece as diversas experiências promovidas com jovens do campo pelas redes que compõem o Pedagroeco, unindo ancestralidade e futuro desejado, tradição oral com ferramentas modernas de comunicação e conhecimento científico com os saberes locais, para relatar os resultados obtidos.
Tipo: Livros
Palavras-chave: Etnoconhecimento; Sociologia Rural; Comunidade Rural.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125276

Sementes misteriosas expõem cultivos a altos riscos.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000998983/sementes-misteriosas-expoem-cultivos-a-altos-riscos.html
Tipo: Artigo na mídia
Palavras-chave: Controle de pragas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126413

Monitoramento de desembarques pesqueiros na Bacia Tocantins-Araguaia: Araguacema.
Provedor de dados: 14
Este informativo avalia as pescarias no município de Araguacema, TO, na primeira metade da temporada de 2020. Foram avaliados 244 desembarques neste quadrimestre e calculadas a produtividade por pescador, a renda líquida por pescador gerada pela pesca e as principais espécies capturadas (nome popular). Vale lembrar que as informações produtivas deste informativo, entre março e junho, referem-se ao período da pandemia causada pelo novo coronavírus (Covid-19), e que os números podem ser reflexo das condições de contaminação e isolamento social e suas consequências na cadeia produtiva da pesca.
Tipo: Folhetos
Palavras-chave: Araguacema-TO; Pesca Artesanal; Desembarque; Projeto Pesqueiro; Pescador; Cadeia Produtiva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125142

BENEFÍCIOS da adubação verde para a agricultura familiar: programa 29: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana traz para você a importância da adubação verde e das técnicas de compostagem para a fertilidade do solo. A adubação verde promove a melhoria das qualidades físico-químicas e biológicas do solo, a partir da ciclagem de nutrientes. Geralmente, as leguminosas mais conhecidas pelos agricultores para a produção de fitomassa para adubação verde são as mucunas, algumas espécies de crotalárias, feijão-de-porco e feijão-guandu. O pesquisador da Embrapa Milho e Sorgo, Walter Matrangolo explica detalhes, no Prosa Rural.
Tipo: Gravações de som
Palavras-chave: Adubação Verde; Compostagem; Fertilidade do Solo; Leguminosa; Mucuna; Crotalária; Feijão de Porco; Guandu; Agricultura Familiar; Composting; Soil fertility; Legumes; Pigeon peas; Phytomass.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124104

SIMPMAMÃO: aplicativo para gestão de casas de sementes: programa 25: Norte.
Provedor de dados: 14
Esta semana o Prosa Rural fala sobre um aliado tecnológico para o controle das duas principais pragas da cultura do mamão. Trata-se do SimpMamão, um software que pode ser acessado pelo celular, tablet ou computador. O Sistema Integrado de Monitoramento de Pragas do Mamão, SimpMamão, ajuda no controle da varíola ou pinta-preta e o ácaro-rajado. Participa do programa a pesquisadora Fabiana Sasaki, da Embrapa Mandioca e Fruticultura.
Tipo: Gravações de som
Palavras-chave: Mamão; Ácaro Rajado; Pinta Preta; Praga de Planta; Varíola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123594

Bactérias metanotróficas obtidas de solos florestais utilizando diferentes metodologias para o isolamento.
Provedor de dados: 14
Autores: SILVA, K. da; PEPE, K. B. F.; TÚLIO, R. H.; MARCONDES, L. C.; RACHWAL, M. F. G.; ZANATTA, J. A.
Os microrganismos do solo são responsáveis por diversos proces- sos essenciais para a manutenção dos ecossistemas. Dependendo das condições, os solos podem emitir ou absorver óxido nitroso (N2 O) e metano (CH4 ) e reduzir as emissões de dióxido de carbono (CO2 ), (Serrano-Silva et al., 2014), que são gases responsáveis pelo aumento de temperatura global, conhecidos como gases de efeito estufa (GEE). Entre os GEEs, o CO2 é o mais abundante gás na atmosfera, seguido pelo CH4 , no entanto, este último pos- sui potencial de eficiência radiativa 26 vezes maior que o CO2 (Stocker, 2013), sendo responsável por aproximadamen- te 16% do aquecimento atmosférico (Aydin et al., 2010; Serrano-Silva et al., 2014). Fontes naturais de emissão de metano representam 40%,...
Tipo: Folhetos
Palavras-chave: Bactéria metanotrófica; Bacteriologia do Solo; Metano.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125663

Banco ativo de germoplasma de macaúba: Embrapa Cerrados.
Provedor de dados: 14
Autores: CONCEIÇÃO, L. D. H. C. S. DA.
O Banco Ativo de Germoplasma de Macaúba da Embrapa Cerrados (BAGMC), conta com 100 acessos de diferentes regiões do território brasileiro.
Tipo: Artigo de periódico
Palavras-chave: BAGMC; Macaúba; Banco de Germoplasma; Germoplasma.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127922

Avaliação de amostras de espécies do gênero Copaifera L. após armazenamento a - 20 °C por períodos de 11 a 25 anos.
Provedor de dados: 14
Autores: SALOMAO, A. N.; SANTOS, I. R. I.; JOSE, S. C. B. R.
Durante a conservação a -20 °C, sementes aleuro-lipídicas podem perder, gradativamente a germinabilidade e a viabilidade. Nesse trabalho, foi avaliado o efeito da exposição a -20 °C, por períodos que variaram de 11 a 25 anos, em sementes de 19 acessos de espécies do gênero Copaifera L., com teores de água de 5,6% a 10,5%. Após o congelamento, houve redução significativa (P&lt;0,05) na germinabilidade de três amostras e aumento significativo (P&lt;0,05) do percentual germinativo de uma amostra. Houve decréscimo, não significativo (P&lt;0,05), do potencial fisiológico em sementes de 11 amostras, após exposição a -20 °C, podendo ser, provavelmente, indício de deterioração do material. Em contraste, o armazenamento a -20 °C, acondicionando-se as sementes em...
Tipo: Folhetos
Palavras-chave: Seed; Germinação; Conservação; Congelamento; Semente; Germination; Freezing.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125806

Manejo de vinhedos em situação de pós-geada.
Provedor de dados: 14
Autores: SANTOS, H. P. dos; SILVA, L. C. da; MELO, G. W. B. de.
Apresenta estratégias de avaliação de danos e de manejo que os produtores e técnicos podem adotar para minimizar o impacto imediato das geadas tardias, visando garantir a sanidade das plantas e o potencial de produção das próximas safras.
Tipo: Folhetos
Palavras-chave: Avaliação de danos pós geada; Repoda; Rebrote; Vinhedo; Cultivar; Cultivar precoce; Adubação; Irrigação; Planejamento; Geada; Uva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124618

Science &amp; Innovation: feeding a world of 10 billion people: proceedings.
Provedor de dados: 14
Autores: INTERNATIONAL TEMPERATE RICE CONFERENCE, 7., 2020, Pelotas.
Tipo: Folhetos
Palavras-chave: Rice cultivation; Oryza Sativa; Rice.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130667

Seleção de plantas em acessos de coqueiro-gigante do grupo Indo-Atlântico baseada na produção de frutos.
Provedor de dados: 14
Autores: COSTA, E. F. N.; RAMOS, S. R. R.; RIBEIRO, F. E.
Tipo: Folhetos
Palavras-chave: Coqueiro gigante; Coco; Genética Vegetal; Coconuts.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128756

Cobertura vegetal e uso da terra nos solos arenosos das áreas de afloramento do Sistema Aquífero Urucuia-Brasil.
Provedor de dados: 14
Autores: LANDAU, E. C.; VALADARES, G. M.
O Sistema Aquífero Urucuia (SAU) é um reservatório subterrâneo de água doce que contribui significativamente para a manutenção das vazões do Rio São Francisco e seus afluentes. Situa-se em uma área do Bioma Cerrado considerada como a nova ?fronteira agrícola nacional?, onde ocorrem vários meses anuais de estiagem, e a presença de água subterrânea tem estimulado o uso desta para suprir a crescente demanda na região, principalmente para a irrigação de culturas agrícolas produzidas com altos níveis tecnológicos. O solo influencia na manutenção da qualidade e da quantidade das águas subterrâneas, pelo que é necessária a proteção das áreas de recarga de aquíferos, evitando contaminação decorrente da ocupação com atividades antrópicas, bem como o comprometimento...
Tipo: Livros
Palavras-chave: Conservação ambiental; Unidade de conservação; Matopiba; Selo ODS 6; Sustentabilidade; Objetivo de desenvolvimento sustentável; Agenda 2030; Solo; Cerrado; Reservatório de Água; Águas Subterrâneas; Qualidade da Água.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128622

Manejo da cultura da bananeira no Estado do Amazonas.
Provedor de dados: 14
Autores: PEREIRA, M. C. N.; GASPAROTTO, L.; PEREIRA, J. C. R.; LOPES, C. M. d'A.
Instalação de um bananal. Escolha da cultivar. Thap maeo. Caipira. Fhia 18. Prata Ken. Pelipita. BRS Conquista. BRS Caprichosa. BRS Garantida. BRS Japira. Escolha da área. Condições climáticas. Preparo do solo. Coleta de solo para análise e recomendação de adubação. Época de plantio. Espaçamento e densidade populacional. Coveamento e sulcamento. Seleção de preparo das mudas. Adubação. Adubação de cova. Adubação de plantio. Adubação de cobertura. Adubação a partir do 2º ciclo. Irrigação. Práticas culturais. Capina. Desbaste. Desfolha. Escoramento. Eliminação do coração (mangará) e pencas. Colheita. Quando colher. Pós-colheita. Doenças da bananeira. Sigatoka-negra. Moko. Mal do panamá. Mosaico da bananeira. Estrias da bananeira. Pragas da bananeira....
Tipo: Livros
Palavras-chave: Cultivo; Banana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128801

Hortaliça como comprar, conservar e consumir: espinafre.
Provedor de dados: 14
Autores: SANTOS, F. F. dos; MELO, M. F. de; TAVARES, S. A.; MATOS, M. J. L. F.; LANA, M. M.
Espinafre. Como comprar. Como conservar. Como consumir. Arroz com espinafre. Tortinhas de espinafre e queijo.
Tipo: Folders
Palavras-chave: Espinafre; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125879

Caracterização e estoques de carbono do solo no Sistema Silvipastoril de produção de caprinos da Embrapa Semiárido (Sistema CBL).
Provedor de dados: 14
Autores: SIGNOR, D.; DEON, M. D. I.; MORAES, S. A. de.
Neste trabalho são apresentados resultados de pesquisas relacionadas à caracterização do solo em uma área pertencente à Embrapa Semiárido na qual foi implantado um estudo com o sistema CBL, que é uma estratégia importante não apenas pelo aporte alimentar para os rebanhos, como também para reduzir a pressão sobre os recursos da Caatinga, que é um bioma que vem sendo destacado como um dos mais degradados, apesar da realização de muitos estudos que objetivam a sua preservação.
Tipo: Folhetos
Palavras-chave: Sistema CBL; Sistemas de integração lavoura-pecuária-floresta; Solo; Análise do Solo; Matéria Orgânica; Capim Buffel; Leguminosa; Leguminosa Forrageira; Caprino; Produção Animal; Animal production.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123548

Solos e aptidão agroflorestal do município de Porto Acre, AC.
Provedor de dados: 14
Autores: BARDALES, N. G.; AMARAL, E. F. do; OLIVEIRA, T. K. de; OLIVEIRA, C. H. A. de; ARAÚJO, E. A. de.
Com a finalidade de ampliar os conhecimentos pedoambientais na região, objetivou-se neste estudo realizar o levantamento e mapeamento de solos em escala 1:100.000 e a classificação da aptidão agroflorestal do município de Porto Acre, AC. Esta publicação está de acordo com os Objetivos de Desenvolvimento Sustentável 2 (Fome Zero e Agricultura Sustentável) e 15 (Vida Terrestre). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas.
Tipo: Folhetos
Palavras-chave: Reconocimiento de suelos; Aptitud del suelo; Porto Acre (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Selo ODS 2; Selo ODS 15; Reconhecimento do Solo; Aptidão Agrícola; Soil surveys; Soil suitability.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122231

BRS A502: cultivar de arroz de terras altas com resistência ao acamamento e grãos de excelente qualidade industrial e culinária.
Provedor de dados: 14
Autores: FURTINI, I. V.; CASTRO, A. P. de; LACERDA, M. C.; BRESEGHELLO, F.; FRAGOSO, D. de B.; COLOMBARI FILHO, J. M.; CORDEIRO, A. C. C.; SOUSA, N. R. G.; UTUMI, M. M.; SILVEIRA FILHO, A.; PEREIRA, J. A.; ABREU, G. B.; OLIVEIRA, I. J. de; BASSINELLO, P. Z.; SILVA-LOBO, V. L.
A Embrapa e parceiros do Programa de Melhoramento Genético de Arroz de Terras Altas, disponibilizam uma nova cultivar de arroz, BRS A502. As principais características são a elevada resistência ao acamamento, ciclo médio, alto potencial produtivo e grãos de excelente qualidade industrial e culinária. BRS A502 é uma cultivar que pode ser utilizada em diversas condições de cultivo, incluindo a rotação e a sucessão de culturas em áreas sob agricultura intensiva (terras velhas) nas principais regiões produtoras do Brasil.
Tipo: Folhetos
Palavras-chave: BRS A502; Arroz; Oryza Sativa; Melhoramento Genético Vegetal; Qualidade; Culinária; Variedade Resistente; Rice; Cultivars; Varietal resistance; Plant breeding.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124146

Planilhas para composição de legendas de mapas pedológicos, de acordo com o Sistema Brasileiro de Classificação de Solos, e sua inserção em tabelas de atributos de SIG.
Provedor de dados: 14
Autores: CARVALHO FILHO, A. de; LUMBRERAS, J. F.; MOTTA, P. E. F. da; DART, R. de O.; AGLIO, M. L. D.
Com o intuito de aumentar a rapidez e a eficiência na composição das legendas de identificação de solos, assim como facilitar sua incorporação e utilização em SIG, foi desenvolvido, no programa Microsoft Excel®, um sistema composto por planilhas que auxiliam o processo de digitação e organização das diversas informações constantes nas unidades de mapeamento de solos, tanto na forma por extenso, conforme apresentada nos relatórios dos levantamentos pedológicos, como estruturadas para possibilitar sua inserção nas tabelas de atributos de arquivos digitais utilizados em SIG.
Tipo: Folhetos
Palavras-chave: Legenda de identificação; SiBCS; Classificação do Solo; Mapa; Soil classification; Soil map.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124302

Caracterização dos órgãos reprodutores florais de diferentes estruturas de frutificação de macieiras no semiárido brasileiro.
Provedor de dados: 14
Autores: LOPES, P. R. C.; MATOS, R. R. S. da S; OLIVEIRA, I. V. de M.; SANTOS, J. S. dos.
A maçã é a 2ª fruta de clima temperado mais produzida no Brasil, porém a expansão para regiões subtropicais esbarra na falta de conhecimento sobre a interferência das condições climáticas no desenvolvimento da biologia floral e reprodutiva. Assim, objetivou-se avaliar os órgãos reprodutores florais de diferentes estruturas de frutificação m macieiras sob condição semiárida tropical, em Lagoa Grande-PE. O trabalho foi conduzido de julho/2015 a dezembro/2016 na Fazenda Sereníssima, em Lagoa Grande-PE. Com delineamento em blocos casualisados, com 5 repetições, em arranjo fatorial 3x3, de 3 cultivares (?Julieta?, ?Princesa? e ?Eva?) gemas de 3 diferentes estruturas (axila de brindila, terminal de brindila e de esporão). Foram avaliadas: massa fresca do...
Tipo: Parte de livro
Palavras-chave: Morfologia floral; Estrutura de floração; Maçã; Morfologia Vegetal; Floração; Tubo Polínico; Plant morphology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120903

Aspectos limnológicos de uma aquaponia utilizando leitos cultivados semissecos sob diferentes cargas de nutrientes.
Provedor de dados: 14
Autores: LIMA, J. de F.; BASTOS, A. M.
O estudo avaliou a eficiência de um sistema de recirculação utilizando leitos cultivados semissecos no tratamento de efluentes de recria de tambaqui Colossoma macropomum em três densidades de estocagem: 40, 80 e 120 alevinos m-3. O cultivo durou 110 dias. Os parâmetros de qualidade de água registrados diariamente foram: sólidos totais, turbidez, oxigênio dissolvido, pH, temperatura e condutividade elétrica. E amônia, nitrito, nitrato, potássio, fosfato, magnésio e cálcio foram registrados duas vezes por semana. Os resultados demonstraram que o sistema de aquaponia utilizado com alface Lactuca sativa foi satisfatoriamente eficiente no tratamento da água tornando-a apropriada ao cultivo de C. macropomum nas densidades testadas. O volume de nutrientes...
Tipo: Folhetos
Palavras-chave: Sistema misto; Tambaqui; Colossoma Macropomum; Aquicultura; Produção Pesqueira; Hortaliça Folhosa; Produção Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127795

MANEJO adequado para redução dos riscos de bicheira em bovinos: programa 4: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o manejo adequado para reduzir os riscos de bicheira em bovinos. O controle de ferimentos em bovinos deve ser uma prática constante do pecuarista, já que o problema com bicheira reduz a produtividade da carne e do leite, desvaloriza o couro por conta das lesões que aparecem, além de acarretar altos gastos com medicamentos. O ouvinte vai saber o que causa a bicheira nos animais e vai saber também como evitá-las, com as dicas da veterinária Márcia de Oliveira, da Embrapa Pecuária Sudeste.
Tipo: Gravações de som
Palavras-chave: Bovino; Bicheira; Medicamento; Pecuarista; Produtividade; Lesão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119523

Infestação da larva-minadora em clones de cajueiro-anão consorciados com fruteiras.
Provedor de dados: 14
Autores: FERREIRA, F. I. G.; MESQUITA, A. L. M.; MOTA, M. do S. C. de S.; MIRANDA, F. R. de.
Tipo: Parte de livro
Palavras-chave: Consórcio; Anacardium Occidentale; Praga; Phyllocnistis Citrella.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128422

Fusarium oxysporum f. sp. cubense raça 4 tropical: perigo para a bananicultura nacional.
Provedor de dados: 14
Autores: GASPAROTTO, L.; RODRÍGUEZ, M. A. D.; ALEXANDRE, J. R.; SCHURT, D. A.; LEITE, R. S. V.
Sintomas das raças 1, 2 e TR4. Sintomas do moko e da TR4. Sintomas da murcha abiótica. Recomendações. Levantamento. Metodologia para a coleta de amostras de tecidos de plantas de bananeira suspeitas de estarem afetadas por Foc R4T. Registros e medidas de biossegurança durante a coleta de amostras. Lista de materiais e utensílios necessários para a coleta de amostras.
Tipo: Folhetos
Palavras-chave: Banana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128453

Feijão-vagem e feijão-de-metro.
Provedor de dados: 14
Autores: ARAUJO, S. M. B.; CHENG, S. S.; VIÉGAS, I. de J. M.; GUSMÃO, S. A. L.
Tipo: Parte de livro
Palavras-chave: Feijão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127298

BRS FS305 feijões especiais: cultivar de feijão calima para exportação.
Provedor de dados: 14
BRS FS305 é uma cultivar voltada aos interessados em exportar feijão ou comercializar um produto diferenciado no mercado brasileiro. A BRS FS305 é do grupo Calima, grão negociado no mercado internacional e se constitui em uma inovação, pois passou por avaliação e validação do programa de melhoramento nacional, sendo a primeira a ser disponibilizada comercialmente no País. Além disso, atende à crescente demanda da alta gastronomia, por se tratar de um grão graúdo, rajado, utilizado para a preparação de pratos especiais na culinária. A BRS FS305 possui boa adaptação às condições de cultivo brasileiras e resistência moderada à antracnose, mancha angular e ferrugem. A massa de grãos está entre 60 e 70 g por 100 sementes. O potencial produtivo é de 3.615 kg/ha.
Tipo: Folders
Palavras-chave: Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124078

Florestas plantadas: essenciais no combate ao COVID-19.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000987626/florestas-plantadas-essenciais-no-combate-ao-covid-19.html.
Tipo: Artigo na mídia
Palavras-chave: Pandemia; Indústria Florestal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122205

Livestock policy in the Brazilian Amazonia colonization.
Provedor de dados: 14
Autores: VAZ, V.; CARVALHO, S.; BENDAHAN, A. B.; POCCARD-CHAPUIS, R.; DUARTE, L. G.; TOURRAND, J. F.
The objective of this chapter is to present, based on a diachronic analysis, the main steps of livestock farming in the Brazilian Amazonia and the policies that have been associated with it.
Tipo: Parte de livro
Palavras-chave: Livestock; Agriculture; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1144639

Técnicas de manejo de água de irrigação para reduzir a demanda de água em bananeira.
Provedor de dados: 14
Autores: COELHO, E. F.; SANTOS, M. R. dos; ALMEIDA, F. de; DONATO, S. L. R.; REIS, J. B. R. da S.; OLIVEIRA, P. M. de.
Tipo: Folhetos
Palavras-chave: Irrigação; Banana; Irrigation.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122153

Impacto bioeconômico da cultivar BRS Estribo de capim-sudão na produção de bovinos de corte.
Provedor de dados: 14
Autores: LAMPERT, V. do N.; MONTARDO, D. P.
Custos de produção; Cenários e margens econômicas
Tipo: Folhetos
Palavras-chave: BRS Estribo; Capim sudão; Impacto Econômico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129415

Banco Ativo de Germoplasma de Paspalum: Embrapa Pecuária Sudeste.
Provedor de dados: 14
Autores: CAVALLARI, M. M.
O BAG de Paspalum possui 488 acessos de cerca de 60 espécies, com aptidões variadas como cobertura permanente do solo e uso como forrageira. O gênero, com cerca de 215 espécies nativas do Brasil, é bastante diverso, com espécies estoloníferas ou cespitosas, de pequeno ou grande porte, sexuais (autógamas ou alógamas) ou apomíticas (obrigatórias ou facultativas), diploides ou poliploides. Os acessos do BAG são oriundos de diversas regiões do Brasil, coletados nos mais distintos ambientes. Tal diversidade representa ampla fonte de variabilidade genética para uso em programas de melhoramento genético.
Tipo: Parte de livro
Palavras-chave: Paspalum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127616

Maçãs podres comprometem toda receita.
Provedor de dados: 14
Autores: MEDEIROS, S. R. de.
O monopólio das manchetes na imprensa por trabalhos científicos sobre vírus, vacinas e medicamentos foi quebrado com força no mês passado por causa de um artigo publicado na respeitadíssima revista Science sobre desmatamento no Cerrado e na Amazônia. Com autores brasileiros junto a parceiros da Europa e dos EUA, ele começou a fazer barulho desde seu título: ?As maçãs podres do agronegócio brasileiro? (Rajão et al, 2020). O título tem como referência o fenômeno de que basta uma fruta podre para estragar todo um lote. A metáfora é aplicada para a situação em que o comportamento negativo de apenas um ou poucos indivíduos, dentro de um conjunto de semelhantes, compromete todo o grupo. O ponto crucial do estudo é implicar que, apesar de haver desmatamento...
Tipo: Artigo na mídia
Palavras-chave: Desmatamento Cerrado; Desmatamento amazônia; Conceito de contaminação; Produção de soja; Exigência leis ambientais brasileiras; Cadastro Ambiental Rural; Preservação meio ambiente; Economia de bioinsumos; Sistema público de monitoramento; Produção de Carne.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129268

Manejo da cochonilha piolho-de-São-José, uma praga em expansão na fruticultura sul-brasileira.
Provedor de dados: 14
Autores: MENEZES-NETTO, A. C.; PERAZZOLI, V.; SANTOS, J. P. dos; ARIOLI, C. J.; BOTTON, M.
Nos últimos anos, no Sul do Brasil, as frutíferas de clima temperado vêm sendo afetadas por surtos populacionais da cochonilha piolho-de-São-José (PSJ), Comstockaspis perniciosa (Comstock, 1881) (Hemiptera: Diaspididae)*. Essa cochonilha pertence à mesma família de outras espécies já conhecidas pelos fruticultores: a cochonilha-branca do pessegueiro, Pseudaulacaspis pentagona (Targioni Tozzetti, 1886) (Hemiptera: Diaspididae), e a cochonilha-de-tronco da videira, Hemiberlesia lataniae (Signoret, 1869) (Hemiptera: Diaspididae). Apesar de possuir aspectos morfológicos e biológicos semelhantes às outras espécies, o PSJ possui tamanho notoriamente menor, o que dificulta a diagnose e a adoção de medidas de controle no início das infestações.
Tipo: Artigo na mídia
Palavras-chave: Cochonilha piolho-de-São-José; Frutíferas de clima temperado; Cochonilha-de-tronco da videira; Cochonilha; Cochonilha Vermelha.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133857

Hortaliça como comprar, conservar e consumir: cenoura.
Provedor de dados: 14
Autores: LANA, M. M.; SANTOS, F. F. dos; LUENGO, R. de F. A.; MATOS, M. J. L. F.; TAVARES, S. A.; MELO, M. F. de.
Cenoura. Como comprar. Como conservar. Como consumir. Creme de cenoura. Bombons de cenoura, nozes e coco.
Tipo: Folders
Palavras-chave: Cenoura; Daucus Carota; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125754

Implantação da cultura.
Provedor de dados: 14
Autores: LAMAS, F. M.; FERREIRA, A. C. de B.; YAMAOKA, R. S.
Tipo: Parte de livro
Palavras-chave: Sistema de Produção; Algodão; Plantio; Época de Plantio; Densidade de Plantio; Semeadura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124308

Plantas de Barro Alto: Espécies nativas em solos ultramáficos de Barro Alto, GO - Brasil.
Provedor de dados: 14
Autores: MIRANDA, Z. de J. G.; ANDRADE, L. R. M. de; AQUINO, F. de G.; PEREIRA, C. D.
Tipo: Folhetos
Palavras-chave: Solo ultramáfico; Cerrado; Espécie Nativa; Vegetação Nativa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125056

Processamento industrial da buchada e dobradinha.
Provedor de dados: 14
Autores: LIMA, L. D. de; SANTOS, J. de S.; BATISTA, A. S. M.; MARTINS, M. C.; NALERIO, E. S.
Tipo: Folhetos
Palavras-chave: Produto cárneo; Culinária nordestina; Culinária regional; Caprino; Ovino; Produto Derivado da Carne; Tecnologia de Alimento; Víscera; Processamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128201

Agricultura de precisão no contexto do sistema de produção: lucratividade e sustentabilidade.
Provedor de dados: 14
Autores: MANTOVANI, E. C.; MIRANDA, R. A. de; LANDAU, E. C.; PASSOS, A. M. A. dos.
As inovações técnicas incorporadas aos sistemas de produção agrícolas têm induzido os produtores a estabelecer uma gestão das atividades de alto nível, visando a maximização dos resultados em uma conjuntura de crescimento de custos. O presente trabalho é uma simulação dos custos com uso de agricultura de precisão (AP) com o objetivo de avaliar percentuais de lucro alcançados em culturas de milho e soja no Brasil, usando indicadores de custos retirados da literatura. Foram comparadas informações sobre custos de produção de plantios de milho e soja em 11 municípios situados em diversas regiões produtoras brasileiras, com utilização de agricultura de precisão. A partir das planilhas de custo de produção de soja de sete regiões produtoras do Brasil, elaboradas...
Tipo: Folhetos
Palavras-chave: RTK piloto automático; Agricultura de Precisão; Tecnologia; Implemento Agrícola; Maquina Agrícola; Custo de Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124732

AMAZON portfolio: integrating innovation and sustainability in the largest Brazilian biome.
Provedor de dados: 14
The Amazon Portfolio brings together projects that aim to develop, expand and encourage new development models by integrating of science, technology and innovation with public policies and private sector decisionmaking, with a focus on reducing social inequalities, improvement of human well-being and reducing deforestation and degradation environmental.
Tipo: Folders
Palavras-chave: Desarrollo sustentable; Investigación agraria; Investigación y desarrollo; Programas de investigación; Adopción de innovaciones; Integración (economía); Desenvolvimento Sustentável; Pesquisa Agrícola; Programa de Pesquisa; Inovação; Transferência de Tecnologia; Integração; Amazonia; Sustainable development; Agricultural research; Research and development; Research programs; Innovation adoption; Technology transfer; Integration (economics).
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135397

Nuvens de gafanhotos são naturais e ocorrem há milênios.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000993634/nuvens-de-gafanhotos-sao-naturais-e-ocorrem-ha-milenios.html.
Tipo: Artigo na mídia
Palavras-chave: Monitoramento e controle de pragas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123605

Biossegurança e avaliação agronômica do milho transgênico SbMATE segundo a Resolução Normativa 8 - CTNBio.
Provedor de dados: 14
Autores: VASCONCELOS, M. J. V. de; FIGUEIREDO, J. E. F.; CARNEIRO, A. A.; MAGALHAES, J. V. de; GUIMARÃES, C. T.
Entende-se por planta geneticamente modificada ou transgênica aquela que tenha recebido um ou vários genes exógenos em seu genoma por outros métodos que não fecundação ou cruzamento. Esta classe de planta, que teve o seu código genético alterado pela introdução de uma ou mais sequências de DNA provenientes de outra espécie, vegetal ou de microrganismo, deve passar por rigorosas análises que comprovam suas características agronômicas e de segurança, tanto para o meio ambiente, como para os seres vivos. Este conjunto de práticas ou processos denomina-se biossegurança. A biossegurança de uma planta transgênica, além de estudos feitos em regime de contenção, passa por liberações planejadas no meio ambiente para se obter dados agronômicos, físico-químicos e...
Tipo: Folhetos
Palavras-chave: Biossegurança de OGM; Avaliação agronômica; Genética Vegetal; Planta Transgênica; Engenharia Genética; Zea Mays; Legislação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126605

Substrato Coquita: insumo agropecuário obtido a partir da casca de coco.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuária dos Tabuleiros Costeiros.
Tipo: Folders
Palavras-chave: Adubo; Substrato de Cultura; Coco; Casca; Biofertilizante; Desenvolvimento Sustentável; Desenvolvimento Agrícola; Resíduo Orgânico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128141

A preservação da biodiversidade pela família Santos: Povoado de Mangueira, Lima Campos, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; PIRATOBA, D. N. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122789

Reação ao mosaico-comum de cultivares de trigo do ensaio estadual do Rio Grande do Sul, em 2019.
Provedor de dados: 14
Autores: LAU, D.; CASTRO, R. L. de.
No Brasil, o mosaico-comum do trigo ocorre principalmente no Rio Grande do Sul, em Santa Catarina e no sul do Paraná. Originalmente atribuído ao Soil-borne wheat mosaic virus (SBWMV, Virgaviridae) (Caetano, 1982), demonstrou-se que, no Brasil, uma nova espécie de vírus está associada à virose, o Wheat stripe mosaic virus (WhSMV, Benyviridae) (Valente et al., 2019). Este vírus é transmitido por organismo eucarioto residente no solo e parasita obrigatório de raízes de plantas, denominado Polymyxa graminis (Caetano et al., 1978; Valente et al., 2019).
Tipo: Folhetos
Palavras-chave: Mosaico-trigo; Trigo; Mosaico; Vírus; Doença de Planta; Polymyxa Graminis; Soil-borne wheat mosaic virus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123898

Sistema de produção de mandioca no Semiárido.
Provedor de dados: 14
A Embrapa Mandioca e Fruticultura, situada em Cruz das Almas, Bahia, em parceria com a Embrapa Semiárido, localizada em Petrolina, Pernambuco, tem o prazer de entregar aos produtores de mandioca do clima Semiárido, um sistema de produção para a cultura. Essa zona climática ocupa 18% da área do País, sendo a mandioca uma das culturas relevantes no mesmo. O Sistema de Produção de Mandioca no Semiárido traz todas as informações técnicas necessárias ao cultivo da mandioca, enfocando as fases de estabelecimento da cultura, tratos culturais, controle de pragas e doenças, manejo da colheita e da pós-colheita e uso da mandioca na alimentação humana. Espera-se que a publicação aqui disponibilizada possa contribuir significativamente como instrumento para a melhoria...
Tipo: Livros
Palavras-chave: Importância econômica; Coeficiente técnico; Processamento da mandioca; Região Semiárida; Mandioca; Sistema de Produção; Manejo do Solo; Adubação; Praga; Doença; Pós-Colheita; Mercado; Comercialização; Sistema de Cultivo; Cassava; Postharvest systems; Product system; Cultivars; Crop coefficient; Crop management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131110

Diagnóstico da produção de soja nas macrorregiões sojícolas 2 e 3.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Soja; Produção Vegetal; Produção Agrícola; Produção; Economia Agrícola; Economia da Produção; Soybeans; Vegetable products; Production economics; Agricultural economics.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131491

MAIS mel em colmeia com rainhas de qualidade: programa 7: Centro-Oeste/sudeste.
Provedor de dados: 14
O programa desta semana fala sobre os cuidados que os apicultores devem ter com as abelhas rainhas e seus apiários para manter as colmeias fortes e produtivas. A abelha rainha, com o passar do tempo, diminui a produção de feromônios e com isso, as operárias reduzem as atividades na colmeia, prejudicando a produção de mel. No Prosa Rural desta semana você saberá como é importante manter as colmeias com a abelha rainha produtiva e quando esta envelhecer, realizar a troca da rainha. Participa do programa a pesquisadora da Embrapa Meio-Norte, Fábia Pereira.
Tipo: Gravações de som
Palavras-chave: Abelha Rainha; Colméia; Apiário; Feromônio; Mel.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120685

Greta, sem treta!
Provedor de dados: 14
Autores: MEDEIROS, S. R. de.
Aparentemente inofensivo, pode parecer plausível, tanto nas previsões catastrofistas que não teriam se confirmado, como por poderem ser usadas para criar taxas. Essa segunda parte e até menos importante, uma vez que nunca houve falta de argumento para aumentar impostos, mas quanto ao restante, será que somos cientificamente tão incompetentes assim? Abaixo, fazemos uma checagem dos três mais importantes.
Tipo: Artigo na mídia
Palavras-chave: Conservação ambiental; Mudança Climática; Produção de Carne.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121555

Índice de qualidade participativo do sistema plantio direto para a região do Alto Uruguai, RS - IQP-RAU.
Provedor de dados: 14
Autores: MARTINS, A. L. da S.; DOSSA, A. A.; SANTI, A.; DE BONA, F. D.; DENARDIN, J. E.; LUNARDI, L.; HERNANI, L. C.
O Índice de Qualidade Participativo do Plantio Direto (IQP) é uma das ferramentas de gestão em desenvolvimento pela equipe da Rede de Pesquisa SoloVivo, coordenada pela Embrapa. Esse indicador auxilia a técnicos e produtores rurais na tomada de decisão com vistas de práticas agrícolas, que levam à melhoria da qualidade do manejo do solo em áreas sob Sistema Plantio Direto. O ajuste desse indicador para as condições edafoclimáticas e de mercado características da região do Alto Rio Uruguai, no Rio Grande do Sul, apenas foi possível com o efetivo apoio de técnicos da Emater/RS - ASCAR e de produtores rurais da região que auxiliaram o processo de avaliação de cada indicador componente do IQP, propondo entre outras mudanças, a adoção de novos limites críticos,...
Tipo: Folhetos
Palavras-chave: IQP; Índice de qualidade participativo (IQP); Práticas agrícolas; Sistema de plantio direto; Condições edafoclimáticas; Agropecuária sustentável; Agricultura conservacionista; Manejo de solos; Sistemas de produção; Indicador de sustentabilidade; Sul do Brasil.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132145

USO de inseticidas químicos com conhecimento e responsabilidade na safrinha de milho: programa 45: Centro-Oeste/sudeste.
Provedor de dados: 14
O Prosa Rural desta semana traz orientações sobre como fazer uso de inseticidas químicos na safrinha de milho com conhecimento e responsabilidade. O programa tem foco no controle da Lagarta-do-cartucho, que pode provocar perdas na produção superiores a 40% e, mesmo em plantios com milho Bt, aumentar o uso de inseticidas químicos para reforçar o controle da lagarta. Os pesquisadores da Embrapa Milho e Sorgo, Simone Martins Mendes e Ivênio Rubens de Oliveira, apresentam as boas práticas para se obter bons resultados e não contaminar o meio ambiente.
Tipo: Gravações de som
Palavras-chave: Inseticida; Lagarta Militar; Milho; Perda da Produção; Safrinha; Spodoptera Frugiperda; Insecticides; Corn.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127209

Estratégia para a seleção de linhagens de guandu granífero e forrageiro no Semiárido brasileiro.
Provedor de dados: 14
Autores: SANTOS, C. A. F.
O objetivo deste estudo foi desenvolver e selecionar linhagens de guandu granífero (GG) e forrageiro (GF) para recomendação de novas cultivares. Cruzamentos manuais, em esquema dialélico, foram realizados para GG e GF, envolvendo oito e cinco parentais, respectivamente. Vinte e cinco cruzamentos GG e 11 cruzamentos GF foram avançados pelo método populacional em bulk, com proteção das flores com saco de tecido não tecido (TNT). Nas gerações F2 e F3 , para o GG, não foram realizadas seleções, enquanto nas gerações F4 , F5 e F6 a intensidade de seleção foi de, aproximadamente, 30%. Para o GF foram aplicadas seleções de maiores intensidades desde a geração F3 . As populações dos diferentes cruzamentos nas gerações F2 e F3 foram de, aproximadamente, 250...
Tipo: Folhetos
Palavras-chave: Guandu granífero; TNT; Linhagens de guandu granífero; Leguminosa; Leguminosa com Grão; Guandu; Cajanus Cajan; Cruzamento; Cruzamento Vegetal; Seleção Genética; Crossing; Forage; Forage legumes.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128079

Food loss and waste.
Provedor de dados: 14
Autores: FREIRE JUNIOR, M.; SOARES, A. G.
World food loss and waste can cause about USD 750 billion a year in damage. Post-harvest losses estimates in developing countries vary greatly, reaching up to 50% or more. According to data from the Food and Agriculture Organization of the United Nations (FAO), 54% of losses and waste occur at the initial stage of production – during post-harvest handling and storage, and 46% during processing, distribution, and consumption. Consumers often dispose of food after buying it because they verify that it does not meet their quality requirements, especially regarding appearance and taste. This is why there must be more research on reducing food loss and waste in the world so as to increase food supply, improve production costs, and reduce environmental impacts.
Tipo: Parte de livro
Palavras-chave: Perda de alimento; Desperdio de alimento; Manuseio inadequado de alimento; Tecnologia de Alimento; Desperdício; Perda Pós-Colheita; Food technology; Food loss; Postharvest losses.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128848

Monitoramento de Phakopsora pachyrhizi na safra 2019/2020 para tomada de decisão do controle químico da ferrugem-asiática da soja.
Provedor de dados: 14
Autores: SEIXAS, C. D. S.; POSSAMAI, E. J.; REIS, E. A. dos; OLIVEIRA, G. M. de; HELING, A. L.; OLIVEIRA, A. B. de; LIMA, D. de; SILVA, G. C.
Tipo: Folhetos
Palavras-chave: Doença de Planta; Ferrugem; Fungo; Soja; Phakopsora Pachyrhizi.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125788

Banco ativo de germoplasma de maçã (Malus spp.) : Epagri e Embrapa Uva e Vinho.
Provedor de dados: 14
Autores: KVITSCHAL, M. V.; HAWERROTH, M. C.; OLIVEIRA, P. R. D. de.
Buscando o desenvolvimento de novas opções de cultivo, o programa de melhoramento genético de macieira da Epagri tem usado o BAG-Maçã como fonte de variabilidade genética há décadas.
Tipo: Artigo de periódico
Palavras-chave: BAG-Maçã; Maçã; Melhoramento Genético Vegetal; Banco de Germoplasma; Germoplasma.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127915

Gestão de contratos e boas práticas para o uso sustentável de energia elétrica: manual para melhorias nas Unidades da Embrapa.
Provedor de dados: 14
Autores: SIMPLICIO, E. R.; TANURE, J. P. M.; SOUZA, K. C. G. de; ANDREU, M. P.; SILVA, R. da; PINHEIRO, S. S.; TUPINAMBA, D. D.
Tipo: Livros
Palavras-chave: Consumidor; Empresa Publica; Energia Elétrica; Impacto Econômico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124506

Considerações metodológicas na determinação de fibra insolúvel em detergente para uso em equipamento semi-automático: análise sequencial e tempo de secagem.
Provedor de dados: 14
Autores: JUCHEM, S. de O.; BARELA, A. N.; ALMEIDA, C. de S. T. de.
O objetivo do estudo foi determinar o tempo de secagem ideal para a bolsa de fibra com amostra após o término do processo de digestão, assim como avaliar o efeito do método sequencial sobre as determinações de FDA em forragem.
Tipo: Folhetos
Palavras-chave: Nutrição Animal; Digestão; Equipamento; Forragem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123806

Podridão-parda da haste da soja: reação de genótipos de soja, na safra 2019/2020.
Provedor de dados: 14
Autores: COSTAMILAN, L. M.; BERTAGNOLLI, P. F.; MOREIRA, J. U. V.; MELO, C. L. P. de; PEREIRA, A. F.; OLIVEIRA, A. C. B. de.
A podridão-parda da haste da soja é uma doença que pode ocorrer em lavouras de cultivares suscetíveis localizadas na região fria do Brasil. Seu agente causal é o fungo de solo Cadophora gregata.
Tipo: Folhetos
Palavras-chave: Genótipos; Haste da soja; Reação de genótipos; Podridão Parda; Soja.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123566

Boletim Agroclimático - Julho/2020.
Provedor de dados: 14
Autores: HAWERROTH, F. J.; NACHTIGALL, G. R.
O acúmulo em frio no período de outono/inverno (abril a julho) de 2020 é superior ao observado no de 2019, indicando a possibilidade de obtenção de maiores índices de brotação de gemas em relação ao ciclo passado. Apesar das melhores condições em termos de acúmulo em frio, o manejo de indutores de brotação deverá levar em consideração as características especificas de cada pomar, tomando maior atenção aos pomares mais impactados pela estiagem no ciclo anterior.
Tipo: Folhetos
Palavras-chave: Bacccs; Boletim agroclimático; Boletim agroclimático de Campos de Cima da Serra (Bacccs); Agroclimático; Boletim; Clima; Mudança Climática.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124481

Macaúba: processo de extração de óleo de polpa de macaúba por via úmida com enzimas.
Provedor de dados: 14
Autores: FAVARO, S. P.
Processo de extração de óleo de polpa de macaúba a partir de frutos úmidos, por via aquosa, com utilização de coquetéis enzimáticos comerciais. A tecnologia consiste na extração de óleo de polpa de macaúba com uso de água e enzimas que aumentam a eficiência do processo sem comprometer a qualidade do óleo.
Tipo: Folders
Palavras-chave: Polpa úmida; Macaúba; Óleo; Enzima; Extração.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126438

Espécies vegetais recomendadas para cortinamento em Estações de Tratamento de Esgoto (ETEs) nas Regiões do Planalto Médio e Nordeste do Rio Grande do Sul.
Provedor de dados: 14
Autores: MIURA, A. K.; HENZEL, A. B. D.; MOLINA, A. R.; BIERHALS, D. F.; GUTERRES, D. da S.; GUARINO, E. de S. G.; BESKOW, G. T.; GOMES, G. C.; CUNHA, H. N. da; REAL, I. M. da L.; SOUSA, L. P. de; SOARES, M. M.; KAISER, M. F.; FREITAS, T. C. de; SPIERING, V.; RODRIGUES, W. F.
Estações de tratamento de esgoto (ETEs) são empreendimentos potencialmente produtores de odores e ruídos desagradáveis, as quais comumente estão alocadas junto a comunidades urbanas, gerando constantes conflitos (Scussel; Giassi, 2014). Como forma de reduzir esses impactos nas comunidades vizinhas às ETEs, as cortinas vegetais tornam-se uma valorosa alternativa (Monterosso, 2009), pois promovem a diluição, deposição e interceptação física de partículas de poeira, aerossóis e de moléculas de odor, além de proporcionar efeito psicológico, em função da ocultação da fonte de odor, com a modificação da paisagem (Colletty; Tyndall, 2002). Essas estruturas apresentam também efeitos positivos na segurança patrimonial de construções, assim como na redução de erosão...
Tipo: Livros
Palavras-chave: Cortinamento; Cortina vegetal; Arbusto; Vegetação; Árvore; Paisagismo; Tratamento de Esgoto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133901

Suplementação alimentar de curta duração associada à sincronização do estro para aumentar o número de ovulações em cabras e ovelhas.
Provedor de dados: 14
Autores: NOGUEIRA, D. M.; VOLTOLINI, T. V.
A nutrição é o fator mais importante que afeta diretamente o desempenho produtivo e reprodutivo dos animais. O principal objetivo da suplementação alimentar em fêmeas é aumentar o aporte de nutrientes para estimular a atividade reprodutiva, momento em que as cabras e ovelhas estarão prontas para serem colocadas com os reprodutores ou serem submetidas à inseminação artificial. Apresentamos, nesta publicação, os passos para fazer a suplementação alimentar de curta duração.
Tipo: Folhetos
Palavras-chave: Sincronização do estro; Suplementação alimentar; Nutrição Animal; Cabra; Ovelha; Ovulação; Reprodução Animal; Animal nutrition.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128454

Torta de pinhão-manso: processo de destoxificação de torta de pinhão-manso.
Provedor de dados: 14
Autores: MENDONCA, S.
Tipo: Folders
Palavras-chave: Macrofungo; Destoxificação; Pinhão-manso.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123235

Avaliação dos teores de capsaicinoides em pimenta jalapeño 'BRS Sarakura' cultivada em duas épocas.
Provedor de dados: 14
Autores: PILON, L.; RIBEIRO, C. S. da C.; SOUZA, D. G.; SOARES, J. de S.; SANTOS, K. G. dos.
O objetivo deste estudo foi avaliar o conteúdo de capsaicinoides (capsaicina, dihidrocapsaicina e nordihidrocapsaicina) de pimenta tipo jalapeño (Capsicum annuum L. var. annuum), cultivar BRS Sarakura, plantada em duas épocas.
Tipo: Folhetos
Palavras-chave: Pimenta; Sabor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129034

Irrigação.
Provedor de dados: 14
Autores: PINTO, J. M.; COELHO, E. F.; SIMOES, W. L.
A produção de manga nas regiões de menor pluviosidade é dependente da irrigação em virtude da baixa disponibilidade de água proporcionada pelas precipitações pluviométricas, que não atende à demanda hídrica da cultura em quase todo período do ano. Entretanto, a irrigação pode ser necessária em qualquer região do Brasil que apresente meses contínuos com precipitação inferior a 60 mm com a cultura na fase de floração ou de desenvolvimento dos frutos. Em sendo a irrigação um suplemento tecnológico de alto custo e capaz de proporcionar incrementos significativos da produção agrícola pelo aumento da produtividade, a aplicação adequada de água, na quantidade certa e no momento exato, é o objetivo principal a ser perseguido, especialmente na agricultura orgânica,...
Tipo: Parte de livro
Palavras-chave: Demanda hídrica; Sistema de irrigação utilizado; Manga; Produção Orgânica; Irrigação; Manejo de Água; Mangoes; Organic production; Irrigation.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130625

Épocas de colheita da macaxeira cultivar Aipim Manteiga em Latossolo Amarelo no Estado do Amazonas.
Provedor de dados: 14
Autores: OLIVEIRA, I. J. de; BARRETO, J. F.
O objetivo deste trabalho foi avaliar a influência da época de colheita sobre a produtividade de raízes e tempo de cozimento da cultivar de macaxeira Aipim Manteiga cultivada em Latossolo Amarelo argiloso, em ecossistema de terra firme no estado do Amazonas.
Tipo: Folhetos
Palavras-chave: Mandioca; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125935

Aceroleira.
Provedor de dados: 14
Autores: VELOSO, C. A. C.
Tipo: Parte de livro
Palavras-chave: Acerola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127315

ALGODÃO em consórcios agroecológicos: programa 42: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre Algodão em consórcios agroecológicos. No caso da cotonicultura, o consórcio agroecológico consiste em cultivar na mesma área, além do próprio algodão, também as culturas alimentares e as plantas nativas da caatinga. Essa diversificação amplia a renda do produtor e reduz os riscos de doenças e pragas do algodão, além de trazer ganhos ambientais e mais saúde para o agricultor e para o consumidor. O convidado do programa é o pesquisador Marenilson Batista, da Embrapa Algodão, que fala sobre as vantagens e principalmente sobre os desafios de se cultivar o algodão em consórcio.
Tipo: Gravações de som
Palavras-chave: Algodão; Agricultor; Consorciação de Cultura; Consumidor; Cotonicultura; Produtor; Renda.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126152

Influência do manejo e de substâncias exógenas na maturação de frutos e produtividade do guaranazeiro.
Provedor de dados: 14
Autores: MORAIS, R. R. de; FONTES, J. R. A.; ATROCH, A. L.; RESENDE, L.
Este trabalho analisa diferentes estratégias de manejo com objetivo de promover alterações sobre a maturação de frutos e produtividade do guaranazeiro.
Tipo: Folhetos
Palavras-chave: Guaraná; Paullinia Cupana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128805

De qual Amazônia estamos falando?
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000982249/de-qual-amazonia-estamos-falando.html.
Tipo: Artigo na mídia
Palavras-chave: Dimensão territorial.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129633

Metodologia para inoculação de Corynespora cassiicola em algodoeiro.
Provedor de dados: 14
Autores: COUTINHO, W. M.; ARAUJO, A. E. de.
Neste trabalho é descrito um método para inocular Corynespora cassiicola em plantas de algodoeiro. Testes foram realizados para avaliar os efeitos da temperatura na germinação dos conídios e no crescimento micelial do patógeno in vitro, além de testes in vivo em que foram avaliados temperatura, tempo de molhamento foliar e concentração de inóculo eficazes à infecção. O estádio de crescimento da planta de algodoeiro e a sua influência no sucesso da inoculação também foram avaliados neste estudo. O método proposto fornece resultados precisos e reprodutíveis para identificar a resistência/suscetibilidade de algodoeiros inoculados artificialmente com C. cassiicola em ambiente controlado.
Tipo: Folhetos
Palavras-chave: Algodão; Corynespora Cassiicola; Doença de Planta; Inoculação; Mancha Alvo; Cotton; Corynespora; Inoculation methods.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133169

PROGRAMA Prosa Rural: programa especial de abertura: todas as regiões.
Provedor de dados: 14
Programa de rádio. Programa Prosa Rural veiculado no mês de janeiro.
Tipo: Gravações de som
Palavras-chave: Prosa Rural; Programa de abertura; Agricultura; Pesquisa Agrícola; Pesquisa Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118026

Avaliação de clones canadenses de batata para rendimento de tubérculos e qualidade de fritura em Canoinhas-SC.
Provedor de dados: 14
Autores: SILVA, G. O. da; CARVALHO, A. D. F. de; BORTOLETTO, A. C.; HIRANO, E.; AZEVEDO, F. Q.; EMYGDIO, B. M.; CASTRO, C. M.; FELDBERG, N. P.; PEREIRA, A. da S.
Tipo: Artigo na mídia
Palavras-chave: Clone canadense; Batata.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127904

Uso de biomarcadores em peixe e boas práticas de manejo sanitário para a piscicultura.
Provedor de dados: 14
Autores: ISHIKAWA, M. M.; QUEIROZ, J. F. de; NASCIMENTO, J. L. do; PÁDUA, S. B. de; MARTINS, M. L.
Resumo: O aumento na produtividade da aquicultura brasileira está fortemente relacionado com a capacidade e efetividade de monitoramentos da sanidade dos organismos aquáticos e do ambiente. Procedimentos e ferramentas precisam ser incluídos na rotina da piscicultura para que os resultados econômicos, sociais e ambientais sejam positivos. Os biomarcadores em peixe para monitoramento da saúde e da qualidade da água podem ser integrados às Boas Práticas de Manejo Sanitário contribuindo para a promoção do bem-estar e saúde dos peixes e, consequentemente, para a qualidade do pescado. O objetivo deste documento é apresentar uma revisão sobre o uso de biomarcadores em peixe, esclarecer conceitos e propor boas práticas de manejo sanitário com a inclusão desta...
Tipo: Folhetos
Palavras-chave: Biomarcador; Monitoramento sanitário; Piscicultura; Peixe de Água Doce; Sanidade Animal; Manejo de Água; Poluição da Água; Fish culture; Biomarkers; Freshwater fish; Best management practices; Water quality; Environmental management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127526

CAFÉ Aruá: de pai para filho: produção de Robusta Amazônico especial por indígenas de Rondônia.
Provedor de dados: 14
Este vídeo apresenta depoimentos de agricultores indígenas sobre a produção sustentável de café em sua aldeia.
Tipo: Filmes
Palavras-chave: Café Aruá; Povos indígenas; Rondônia; Amazônia Ocidental; Western Amazon; Coffea Canephora; Produção; Qualidade; Pratica Cultural; Agricultura Familiar; Agricultura Sustentável; Coffee beans; Crop production; Fruit quality; Plant cultural practices; Sustainable agriculture; Family farms; Community supported agriculture; Indigenous peoples; Traditional technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130933

Efeitos da aplicação de digestato bovino nas características do solo Planossolo Háplico no município de Seropédica - RJ.
Provedor de dados: 14
Autores: MATOS, C. F.; PINHEIRO, E. F. M.; CAMPOS, D. V. B. de; STAFANATO, J. B.; DURÃO, S. M. de O.; CARMO, C. B. S. do; MARINHO, L. R. M.
O presente trabalho teve como objetivo avaliar o efeito da utilização de digestato bovino nos solos de baixa fertilidade de Seropédica, no estado do Rio de Janeiro. O digestato utilizado como fertilizante foi proveniente do processo de digestão anaeróbia de dejetos bovinos do sistema orgânico de produção. Foram aplicadas quatro doses de digestato, em experimento de vasos utilizando a cultura do milho. Os resultados demonstraram que o conteúdo de cálcio, magnésio e fósforo diminuíram com a aplicação do digestato no solo, indicando a absorção desses nutrientes pela cultura do milho ao longo do experimento. Para potássio e sódio, observou-se um incremento deles no solo, sendo justificado pelos seus conteúdos presentes no digestato adicionado. Os conteúdos de...
Tipo: Artigo na mídia
Palavras-chave: Biofertilizante; Nutriente; Biodigestor; Digestão Anaeróbia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127568

Boletim Agrometeorológico: acompanhamento da 2ª safra 2019/2020 em Mato Grosso.
Provedor de dados: 14
Autores: LULU, J.; ZOLIN, C. A.; MAGALHÃES, C. A. de S.
O presente boletim agrometeorológico tem por objetivo fornecer informações relevantes e consolidadas para dar suporte ao setor produtivo de Mato Grosso no sentido do acompanhamento das condições de chuva e déficit hídrico nas regiões produtoras do estado. Importante destacar que, considerando a escala de análise e dado o fator de variabilidade das precipitações e condições de seca, é necessário cautela na interpretação das informações aqui apresentadas. As informações deste boletim são fundamentadas em fontes de dados da Embrapa (Agritempo), CPTEC/INPE (Centro de Previsão de Tempo e Estudos Climáticos) e do INMET (Instituto Nacional de Meteorologia).
Tipo: Folhetos
Palavras-chave: Agritempo; Agrometeorologia; Dados climáticos; Mato Grosso; Sinop-MT; Meteorologia; Safra.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123828

Boas práticas de cultivo para a elevação da produtividade da mandioca BRS Kiriris.
Provedor de dados: 14
Autores: OLIVEIRA, I. R. de; CARVALHO, H. W. L. de; CARVALHO, L. M. de; PIMENTEL, M. A. G.
Este trabalho vem de encontro aos itens 2.3 e 2.4 do Objetivo de Desenvolvimento Sustentável ODS nº 2 (Acabar com a fome, alcançar a segurança alimentar e melhoria da nutrição e promover a agricultura sustentável) porque busca alternativas para dobrar as produtividades, favorecendo a agricultura familiar, e foca em boas práticas, favoráveis à sustentabilidade do sistema de produção da mandioca, ao mesmo tempo em que aumentam a produtividade e a produção.
Tipo: Folhetos
Palavras-chave: Objetivo de desenvolvimento sustentável; Selo ODS 2; Sustentabilidade; Agenda 2030; Manihot Esculenta; Produção; Produtividade; Agricultura Familiar; Agricultura Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121879

Adubação verde em plantio comercial de pupunha: biomassa e conteúdo nutricional.
Provedor de dados: 14
Autores: MAGALHAES, W. L. E.; SÁ, F. P. de; VIEIRA, L. M.; MAGGIONI, R. de A.; LIMA, E. A. de.
Diante da importância econômica da pupunha ao litoral paranaense e das vantagens da adubação verde como forma alternativa aos adubos químicos e herbicidas, este trabalho objetivou avaliar a qualidade e quantidade de biomassa das plantas de cobertura consorciadas com plantio de pupunha propiciando sustentabilidade ao sistema de produção.
Tipo: Folhetos
Palavras-chave: Palmito; Pupunha; Adubação Verde; Biomassa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127341

PRODUÇÃO de grãos em sistema agroecológico: construção conjunta de conhecimento com adaptação e validação de práticas e tecnologias.
Provedor de dados: 14
Promover a inserção da produção de grãos em sistema agroecológico em uma comunidade de agricultores familiares da região de Anápolis, GO. Para a inserção da produção de grãos nas propriedades dos produtores familiares da Associação de Produtores Agroecológicos de Anápolis e Região (Aproar), essencialmente de hortaliças, foi fornecida a tecnologia para produção de milho verde e feijão.
Tipo: Folders
Palavras-chave: Agroecologia; Pratica Cultural; Agricultura Orgânica; Produção Orgânica; Produção; Grão; Feijão; Milho Verde.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124305

Life below water: conservation and responsible use of seas, oceans and coastal environments.
Provedor de dados: 14
Autores: FOGACA, F. H. dos S.; FURTADO, A. A. L.; SILVA, C. A. da; TAVARES-DIAS, M.; KEMENES, A.; ROUTLEDGE, E. A. B.
Oceans cover three quarters of the planet surface, connect populations through ports and markets; are, thus, an important natural and cultural heritage for humanity. Marine environments offer important environmental services: they provide approximately half of the oxygen we breathe, absorb more than a quarter of the carbon dioxide (CO2) we produce, play an important role in water cycle and climate system, and are an essential source of biodiversity. All this contributes to marine and continental ecosystem sustainability, to economic development, to poverty eradication, to food security, to transportation and maritime traffic, to decent work opportunities and means of survival (United Nations, 2017).
Tipo: Parte de livro
Palavras-chave: Food technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128058

Avaliação das condições do transporte das matrizes suínas descartadas.
Provedor de dados: 14
Autores: DALLA COSTA, O. A.; COLDEBELLA, A.; DALLA COSTA, F. A.; BUSS, L. P.; LUDTKE, C. B.; MICHELON, A.; CALDAS, E. D.
Tipo: Folhetos
Palavras-chave: Bem-estar animal; Matrizes de suínos; Transporte; Suinocultura; Suíno; Matriz; Descarte.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124962

Edição de genoma pelo sistema CRISPR-Cas9 e sua aplicação no melhoramento do milho.
Provedor de dados: 14
Autores: CARNEIRO, A. A.; CARNEIRO, N. P.
Técnicas de melhoramento genético clássico, mutações e transgenia têm sido utilizadas para aumentar a variabilidade genética em milho. A edição de genômica é um dos grandes avanços científicos dos últimos anos e pode ser utilizada para induzir alterações com bastante precisão no genoma, visando à melhoria de características agronômicas da cultura. Dentre as técnicas já desenvolvidas com este objetivo, a CRISPR/Cas9 ou Repetições Palindrômicas Curtas Agrupadas e Regularmente Interespaçadas, associada com a proteína Cas9 (do inglês Clustered Regulary Interspaced Short Palindromic Repeats associated), é um sistema considerado simples, preciso e robusto para criar variabilidade genética, e possui um potencial de aplicação muito grande na biotecnologia, na...
Tipo: Folhetos
Palavras-chave: Zea Mays; Melhoramento Genético Vegetal; Variação Genética; Organismo Transgênico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128621

Ambitec-TICs: avaliação de impactos de tecnologias de informação e comunicação aplicadas à agropecuária.
Provedor de dados: 14
Autores: PINTO, D. M.; OLIVEIRA, P. de; MINITTI, A. F.; MENDES, A. M.; VILELA, G. F.; CASTRO, G. S. A.; ROCHA, J. D.; BOGIANI, J. C.; NOGUEIRA JUNIOR, L. R.; COSTA, C. C. da; NOVAES, R. M. L.; JESUS, I. R. D. de; FAE, V. A.; EDUARDO, M. de P.; FOSCHINI, M. M.; ALENCAR, J. R. DE; CRUZ, M. C. D.; GARCIA, E. P. DE. A.; JARDINE, J. G.; RODRIGUES, G. S.
Este trabalho tem o objetivo de apresentar um módulo metodológico derivado do sistema de indicadores Ambitec-Agro4 (Rodrigues et al., 2003, 2010), voltado à avaliação de impactos de inovações oriundas das TICs e à verificação de sua aplicabilidade a seis diferentes TPPS da Embrapa, em avaliações-piloto com seus desenvolvedores e usuários.
Tipo: Folhetos
Palavras-chave: Adoção de tecnologia; Balanço social; Metodologia; Inovação; Transferência de Tecnologia; Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123688

Sistema de aquaponia com leito cultivado semisseco para recria de peixes redondos e cultivo de hortaliças.
Provedor de dados: 14
Autores: LIMA, J. de F.; BASTOS, A. M.
Tipo: Folhetos
Palavras-chave: Sistema misto; Peixe de Água Doce; Produção Animal; Hortaliça Folhosa; Produção Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127798

Propriedades Tecnológicas de Amidos Isolados de Plátanos e Bananas da Coleção de Germoplasma da Embrapa.
Provedor de dados: 14
Autores: TAKEITI, C. Y.; REIS, R. C.; CARVALHO, C. W. P. de; VIANA, E. de S.; OLIVEIRA, N. A. de; JESUS NETA, P. de; OLIVEIRA, L. A. de.
A banana assume grande destaque na produção mundial, sendo que o Brasil ocupa a terceira posição da produção. As bananas podem ser consumidas cruas, enquanto os plátanos são consumidos necessariamente cozidos ou na forma de farinhas devido ao seu elevado teor de amido, constituindo assim uma oportunidade interessante para uso como ingrediente na indústria alimentícia. O objetivo deste trabalho foi caracterizar o amido extraído de 12 genótipos, dentre plátanos e bananas, pertencentes ao banco ativo de germoplasma da Embrapa. Os amidos apresentaram teor considerável de amilose (29,7% a 37,8%), baixos teores de fósforo (0,01% a 0,03%) e de lipídios (&lt; 0,1%), larga faixa de temperatura de gelatinização (66,9 ºC a 90,8 ºC), estrutura granular heterogênea com...
Tipo: Folhetos
Palavras-chave: Food technology; Amylose; Pasting properties; Retrogradation; Ingredients; Viscosity.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128743

Desenvolvimento radicular e produção de biomassa em variedades de capim-elefante e cana-de-açúcar.
Provedor de dados: 14
Autores: MARAFON, A. C.; MACHADO, J. C.; ENDRES, L.; SANTOS, J. C. M. dos; GUIMARAES, V. dos S.
Tipo: Folhetos
Palavras-chave: Capim Elefante; Cana de Açúcar; Biomassa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129048

O Mercado do Leite em 2018.
Provedor de dados: 14
Autores: CARVALHO, G. R.
A cadeia produtiva do leite é uma das principais atividades da indústria de alimentos brasileira. Com sua produção espalhada na grande maioria dos municípios do País, o leite gera milhões de empregos ao longo de toda a cadeia. Esses resultados gerais da produção primária e da indústria brasileira de leite e derivados foram reflexos de um conjunto de indicadores (...) divididos em cinco seções: i) Mercado Internacional; ii) Mercado Nacional: Produção primária; iii) Mercado Nacional: Indústria; iv) Mercado Nacional: Varejo; v) Mercado Nacional: Comércio exterior.
Tipo: Folhetos
Palavras-chave: Produção mundial de leite; Cadeia de produção de leite; Comércio internacional de leite; Produção de leite no Brasil; Agronegócio do leite no Brasil.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126799

Nanocompósitos: produção de nanocompósitos de borracha e celulose.
Provedor de dados: 14
Autores: VALADARES, L. F.
Tipo: Folders
Palavras-chave: Adição de fibras; Materiais renováveis; Borracha; Fibra.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123232

Cadeia produtiva do leite no Brasil: produção primária.
Provedor de dados: 14
Autores: ROCHA, D. T. da; CARVALHO, G. R.; RESENDE, J. C. de.
Este estudo pretende analisar o panorama da produção primária de leite no Brasil e sua posição perante o mundo, apresentando a evolução da atividade ao longo das duas últimas décadas. Dados de produção total e inspecionada, rebanho de vacas ordenhadas, produtividade animal, além da estrutura produtiva como número de produtores e escala de produção serão abordados a seguir, detalhados nos níveis nacional, regional e estadual.
Tipo: Folhetos
Palavras-chave: Produção de leite; Produtividade animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124858

FERMENTAÇÃO positiva do café: "Sprouting Process".
Provedor de dados: 14
Este vídeo ensina como fazer a fermentação positiva do café com o método Sprouting Process.
Tipo: Filmes
Palavras-chave: Sprouting process; Fermentação positiva; Embrapa Rondônia; Porto Velho (RO); Rondônia; Âmazônia Ocidental; Western Amazon; Café Robusta; Coffea Canephora; Coffee beans; Fermentation.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130939

Mercado de flores e plantas ornamentais tropicais : estratégias para o desenvolvimento de arranjos produtivos da floricultura na Amazônia.
Provedor de dados: 14
Autores: SEGOVIA, J. F. O.; GONÇALVES, M. C. A.; CARVALHO, A. C. A. de; ALMEIDA, F. N. R. de.
Tipo: Parte de livro
Palavras-chave: Planta Ornamental; Floricultura; Economia Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129382

Desempenho de clones de seringueira na região Centro-Oeste do Brasil.
Provedor de dados: 14
Autores: PEREIRA, A. V.; FIALHO, J. de F.; PEREIRA, E. B. C.; JUNQUEIRA, N. T. V.; MARTINS, M. A.; MATTOSO, L. H. C.; LIMA, W. A. A. de; DIANESE, A. de C.; ALVES, R. T.; VEIGA, A. D.; FALEIRO, F. G.; CONCEIÇÃO, L. D. H. C. S. DA; BRAGA, M. F.; MALAQUIAS, J. V.
Este trabalho teve como objetivo avaliar o desempenho de clones de seringueira em três locais da região Centro Oeste com diferentes condições ambientais, sendo 73 clones em Goianésia, estado de Goiás, 69 em Planaltina, Distrito Federal e 44 em Pontes e Lacerda, Mato Grosso. O delineamento experimental foi em blocos ao acaso, utilizando o clone RRIM 600 como controle em Goianésia e Planaltina e o clone Fx 3864 em Pontes e Lacerda.
Tipo: Livros
Palavras-chave: Borracha Hevea; Borracha Brasileira; Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128558

ESCOLHA e manejo do componente arbóreo em sistemas ILPF: programa 32: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o uso de árvores em sistemas de integração lavoura-pecuária-floresta ( ILPF) ? estratégia de produção que integra diferentes sistemas produtivos, agrícolas, pecuários e florestais dentro de uma mesma área. O pesquisador Maurel Behling, da Embrapa Agrossilvipastoril, traz explicações sobre a escolha da espécie arbórea, a definição do espaçamento e da configuração, bem como os cuidados que o produtor deve tomar na condução e manejo das árvores.
Tipo: Gravações de som
Palavras-chave: Árvore; Espaçamento; Floresta; Lavoura; Pecuária; Produtor; Forests; Livestock; Tillage; Trees.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124761

Segurança alimentar pós-Covid-19: megatendências dos sistemas alimentares globais.
Provedor de dados: 14
Autores: SEIXAS, M. A.
A Secretaria de Inteligência e Relações Estratégicas (Sire), da Embrapa, disponibiliza o 34ª Nota Técnica da Série Diálogos Estratégicos-Mercados Internacionais, abordando as principais megatendências dos sistemas alimentares globais, pós-pandemia da Covid-19. Nesta Nota, analisam-se as principais megatendências dos sistemas alimentares, após a eclosão da pandemia da Covid-19 e seus reflexos no aumento do desequilíbrio da segurança alimentar. A narrativa se fundamenta, primordialmente, em artigos científicos de pesquisadores e cientistas internacionais participantes de organizações como o Independent Science and Partnership Council (ISPC), do Consultative Group of International Agricultural Research (CGIAR), Global Panel on Agriculture and Food Systems...
Tipo: Folhetos
Palavras-chave: Covid 19; Agricultura de Precisão; Agronegócio; Inovação; Produção Agrícola; Segurança Alimentar; Nutrição Humana; Mercado Internacional.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124492

Reação de Cultivares e Linhagens de Cevada ao Barley yellow dwarf virus-PAV, em 2018.
Provedor de dados: 14
Autores: LAU, D.; PEREIRA, P. R. V. da S.; MINELLA, E.
O nanismo-amarelo em cereais de inverno no Brasil é causado, predominantemente, por Barley yellow dwarf virus ? BYDV-PAV (Luteovirus, Luteoviridae) (Mar et al., 2013; Parizoto et al., 2013) e transmitido, principalmente, pelos afídeos Rhopalosiphum padi (Linnaeus, 1758), com ocorrências no outono e na primavera; e Sitobion avenae (Fabricius, 1775), com ocorrência na primavera (Parizoto et al., 2013; Rebonatto et al., 2015). O potencial de dano deste complexo afídeo-vírus à produção de cevada (Hordeum vulgare L.) resulta da interação entre o nível de tolerância/resistência das cultivares (Lau et al., 2017) e a incidência da doença, determinada pela dinâmica dos afídeos meteorológicas (Rebonatto et al., 2015).
Tipo: Folhetos
Palavras-chave: Nanismo-amarelo; Cereais; Vírus; Cevada; Barley yellow dwarf virus; Barley yellow dwarf virus-PAV.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129888

Irrigação melhora o desempenho de pomares de maçãs.
Provedor de dados: 14
Autores: FIALHO, V. M. Z. B.
Estudos científicos desenvolvidos pela Embrapa Uva e Vinho(RS) comprovaram que a associação entre irrigação e adubação (fertirrigação) é capaz de driblar os efeitos negativos das mudanças climáticas o cultivo de maçãs na região sul do Brasil.
Tipo: Artigo na mídia
Palavras-chave: Maçã; Irrigação; Pomar; Adubação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125640

COMO prevenir a febre maculosa brasileira causada pelo carrapato: programa 44: Norte.
Provedor de dados: 14
O Prosa Rural desta semana traz informações de utilidade pública. São informações sobre a Febre Maculosa Brasileira, uma doença causada por uma bactéria transmitida pelo carrapato Estrela, presente em parques, pastos, matas, florestas, rios e cachoeiras. Dados do Ministério da Saúde mostram que de cada 10 pessoas com diagnóstico para a doença, quatro morrem em consequência da mesma. O convidado do programa é o pesquisador Renato Andreotti, da Embrapa Gado de Corte.
Tipo: Gravações de som
Palavras-chave: Carrapato estrela; Febre maculosa; Carrapato; Bactéria; Doença; Febre; Diagnostico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126164

Uso intensivo e sustentável da natureza.
Provedor de dados: 14
Autores: LOPES, M. A.
Tipo: Artigo na mídia
Palavras-chave: Ciclo de Vida; Agricultura Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126430

Como a ciência responde à pandemia.
Provedor de dados: 14
Autores: LOPES, M. A.
Essa pandemia é a primeira crise verdadeiramente global da história, com um organismo invisível afetando aproximadamente ao mesmo tempo praticamente todas as pessoas no planeta, ignorando raça, credo, status social ou limites físicos.
Tipo: Artigo na mídia
Palavras-chave: Conhecimento científico; Pandemia; Covid-19; Coronavírus; Pesquisa; Método de Pesquisa; Pandemic; Research; Research methods; Knowledge.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123543

Eficiência de fungicidas para controle de brusone de trigo: resultados dos ensaios cooperativos, safra 2018.
Provedor de dados: 14
Autores: SANTANA, F. M.; LAU, D.; SBALCHEIRO, C. C.; GOUSSAIN, R. de C. S.; VENANCIO, W. S.; CUSTÓDIO, A. A. de P.; MOREIRA, L. S. de O.; SUSSEL, A. A. B.
A brusone do trigo, causada pelo fungo Pyricularia oryzae Cavara [teleomorfo: Magnaporthe oryzae (T.T. Hebert) M.E. Barr], pode infectar todos os órgãos aéreos da planta, incluindo folhas, colmos e espigas. A forma mais destrutiva da doença ocorre quando incidem infecções precoces do fungo na espiga, podendo afetar parcial ou totalmente a ráquis. As espigas infectadas apresentam branqueamento e produzem grãos ?chochos?, deformados, pequenos e com baixo peso específico, ocasionando redução do rendimento final e da qualidade de grãos, levando a perdas significativas nas lavouras. É uma doença de grande importância econômica e constitui-se num dos principais entraves à expansão da triticultura no Brasil Central (Prestes et al., 2007; Torres et al., 2015).
Tipo: Folhetos
Palavras-chave: Pyricularia oryzae Cavara; Fungicida; Fungo; Brusone; Trigo; Espiga; Grão; Magnaporthe oryzae.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124187

Xilitol: produção de xilitol a partir de bagaço de cana-de-açúcar.
Provedor de dados: 14
Autores: VAZ JUNIOR, S.
Tipo: Folders
Palavras-chave: Catálise heterogênea; Química de renováveis; Xilitol; Cana de Açúcar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123236

Um trimestre de boas notícias para a soja brasileira.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000984558/um-trimestre-de-boas-noticias-para-a-soja-brasileira.html.
Tipo: Artigo na mídia
Palavras-chave: Exportação de soja; Produção de soja.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121477

Hortaliça como comprar, conservar e consumir:batata-doce.
Provedor de dados: 14
Autores: MATOS, M. J. L. F.; TAVARES, S. A.; LANA, M. M.; SANTOS, F. F. dos.
Batata-doce. Como comprar. Como conservar. Como consumir. Dicas. Croquete de batata-doce. Batata-doce glaçada.
Tipo: Folders
Palavras-chave: Batata Doce; Economia Domestica; Culinária; Ipomoea Batatas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125637

NANOEMULSÃO de cera de carnaúba para evitar perda de frutos: programa 19: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana apresenta uma tecnologia importante para a conservação pós-colheita de frutos, em geral, e redução do desperdício. É a nanoemulsão de cera de carnaúba. Ao acompanhar o pesquisador Marcos David Ferreira, da Embrapa Instrumentação, o ouvinte vai saber que a conhecida cera de carnaúba agora conta com partículas ultrafinas - chamadas nanopartículas - capazes de preservar a qualidade e prolongar o tempo de vida dos frutos em cerca de 15 dias a mais, em comparação a outros revestimentos.
Tipo: Gravações de som
Palavras-chave: Nanoemulsão; Nanopartícula; Cera; Carnaúba; Fruto; Desperdício; Conservação; Pós-Colheita; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122752

Monitoramento de desembarques pesqueiros na Bacia Tocantins-Araguaia: São Geraldo do Araguaia, PA.
Provedor de dados: 14
Este boletim objetiva avaliar as pescarias realizada pelos(as) pescadores(as) localizados na sede de São Geraldo do Araguaia, PA.
Tipo: Folhetos
Palavras-chave: São Geraldo do Araguaia-PA; Cadeia Produtiva; Desembarque; Pesca Artesanal; Pescador; Projeto Pesqueiro; Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125438

Outono termina com pouca chuva e baixa umidade do ar.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
Durante o outono de 2020 (20/03 a 20/06), foram registrados somente 66 mm de chuva na estação da Embrapa, em Jales.
Tipo: Artigo na mídia
Palavras-chave: Clima; Climatologia; Mudança Climática; Chuva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123564

Diagnóstico da produção e comercialização transfronteiriça de hortaliças na fronteira entre os municípios de Corumbá e Ladário no Brasil e Puerto Quijarro e Puerto Suarez na Bolívia.
Provedor de dados: 14
Autores: FEIDEN, A.; COSTA, E. A. da.
O trabalho teve como objetivo levantar informações bem como sistematizar as informações existentes sobre as condições de produção e comercialização de hortaliças no Arranjo populacional de fronteira de Corumbá entre o Brasil e a Bolívia, com objetivo de subsidiar políticas públicas específicas para a região da fronteira.
Tipo: Parte de livro
Palavras-chave: Produção Orgânica; Agricultura Familiar; Agricultura Sustentável; Organic production; Family farms.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129323

Importância do consumo de carne.
Provedor de dados: 14
Autores: ALVES, F. V.; ALVA, R. C.
A carne é um alimento muito nutritivo e é fonte de substâncias essenciais para o bom funcionamento do nosso corpo. Esses elementos são chamados de aminoácidos, vitaminas e minerais. A carne contém aminoácidos que o corpo precisa para viver, mas que não consegue fabricar sozinho. O mesmo acontece com algumas vitaminas, como as do complexo B, e com alguns minerais, como o ferro e o zinco.
Tipo: Folhetos
Palavras-chave: Carne bovina; Aminoácido; Carne; Consumo; Ferro; Gado de Corte; Vitamina; Zinco.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123563

O novo reforço na produção agroflorestal de Domingos Mariano e Ivanilde: Quilombo São Bento do Juvenal, Peritoró, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Boas práticas; Extrativismo sustentável; Médio Mearim; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122850

Cultivares de trigo e triticale BRS e IPR: Embrapa e IDR-Paraná.
Provedor de dados: 14
Autores: BASSOI, M. C.; RIEDE, C. R.; CAMPOS, L. A. C.; FOLONI, J. S. S.; NASCIMENTO JUNIOR, A. do; ARRUDA, K. M. A.
Catálogo 01/2020 - abril/2020 - CGPE 15953.
Tipo: Folhetos
Palavras-chave: Cultivar; Trigo; Triticale; Variedade; Wheat; Cultivars.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122368

Native forest seeds as an income generator within the forest landscape restoration chain.
Provedor de dados: 14
Autores: PIÑA-RODRIGUES, F. C. M.; EULER, A. M. C.; FREIRE, J. M.; LIMA JUNIOR, M. de J. V.; MENDES, A. M. da S.; SANDIM, A. S. de A.; FRANCO, D. O.; URZEDO, D. I.
Tipo: Parte de livro
Palavras-chave: Ecologia Florestal; Economia Florestal; Ciência Florestal; Administração Florestal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132074

BRS COMO produzir maracujá o ano todo: programa 6: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana vai mostrar que é possível produzir maracujá o ano todo. O pesquisador da Embrapa Acre Romeu Andrade Neto apresenta diversas técnicas que permitem aos produtores produzir o maracujá nas duas estações amazônicas - de inverno a verão. O programa traz ainda duas cultivares de maracujá amarelo, que associadas às técnicas, têm tudo para garantir qualidade com alta produtividade. São a BRS Gigante Amarelo e a BRS Sol do Cerrado, ambas desenvolvidas pela Embrapa Cerrados.
Tipo: Gravações de som
Palavras-chave: Maracujá; Produtor; Cultura de Inverno; Cultura de Verão; Produtividade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120590

Desenvolvimento do milho segunda safra: fatores genético-fisiológicos, plataforma de conhecimento e práticas de manejo de cultivo e uso, visando sustentabilidade de produção e produtividade no binômio soja/milho.
Provedor de dados: 14
Autores: MAGALHAES, P. C.; BORGHI, E.; KARAM, D.; PEREIRA FILHO, I. A.; RIOS, S. de A.; ABREU, S. C.; LANDAU, E. C.; GUIMARAES, L. J. M.; PASTINA, M. M.; DURAES, F. O. M.
A dinâmica da agricultura brasileira e a evolução dos dados das safras agrícolas, notadamente de grãos, colocam o binômio soja/milho segunda safra, em alto grau de participação, em área, volume de negócios e tecnologia, em relação a cerca de 15 espécies comerciais cultivadas, de verão e inverno, e indicam desafios apontando sinais para a expansão produtiva em bases técnico-científicas modernas. Nesta trajetória, os esforços correntes e as perspectivas futuras colocam o Brasil, instituições e profissionais, públicas e privadas, com fortes desafios de alianças, protagonismo de estratégia de ação e de busca de soluções para inovação e mercado, focadas em produção e produtividade. Modelos produtivos, volumes e formas negociais, com vantagens competitivas e...
Tipo: Folhetos
Palavras-chave: Zea Mays; Glycine Max; Safrinha; Fisiologia Vegetal; Ciclo de Vida.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128757

Recuperação e estabilização de cor de suco de acerola por Montmorilonita.
Provedor de dados: 14
Autores: RIBEIRO, H. L.; OLIVEIRA, A. V.; BRITO, E. S. de; AZEREDO, H. M. C. de.
Neste trabalho, a MMT foi utilizada como agente de recuperação e estabilização de cor em suco clarificado de acerola. Optou-se por usar suco clarificado, já que isso facilitou a observação das mudanças de cor. A estabilidade das antocianinas de-pende de vários fatores, entre os quais a estrutura química de cada antocianina e o pH. Quanto menor o pH, maior a estabilidade, sendo que a forma mais estável (o chamado cátion flavílium) predomina em pH &lt; 2 (McGhie; Walton, 2007). As antocianinas de acerolas são particularmente suscetíveis à degrada-ção, o que parece estar relacionado com a alta concentração de ácido ascórbico, que se liga ao carbono C4 das anto-cianinas, resultando na degradação de ambos (De Rosso; Mercadante, 2007). Além disso, a presença de...
Tipo: Folhetos
Palavras-chave: Antocianinas; Acerola; Malpighia emarginata.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124087

SDG 7 as a tool to improve population access to energy services.
Provedor de dados: 14
Autores: OTENIO, M. H.; LEITAO, R. C.; GAMBETTA, R.; KUNZ, A.
The Sustainable Development Goals (SDG) are an effective way of directing the efforts of nations towards reducing social differences in Brazil and in the world while seeking ways to contribute to environmental sustainability. SDG 7 ? Affordable and clean energy: ?ensure access to affordable, reliable, sustainable and modern energy for all? ? and its three targets: ?7.1 By 2030, ensure universal access to affordable, reliable and modern energy services 7.2 By 2030, increase substantially the share of renewable energy in the global energy mix 7.3 By 2030, double the global rate of improvement in energy efficiency? (United Nations, 2017) ? help direct actions regarding the relationship between energy production and its sources considering different societies....
Tipo: Parte de livro
Palavras-chave: Clean energy.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131670

Hortaliça não é só salada. Bolo.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com bolo. Bolo de inhame. Bolo de cenoura. Bolinho de beterraba com laranja.
Tipo: Folders
Palavras-chave: Cenoura; Beterraba; Inhame; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126852

Determinação de sementes de soja esverdeadas por meio de análise de imagens.
Provedor de dados: 14
Autores: ANTUNES NETO, A.; MATIAS, F. I.; PASSOS, A. M. A. dos; ROCHA, N. M.
Os atuais métodos de avaliação de qualidade de lotes de sementes são realizados de forma manual, sendo considerados de baixa efetividade e alta subjetividade. Dentre os atributos de qualidade, alguns como os fisiológicos e genéticos são baseados em coloração e podem ser passíveis de utilização de processos computadorizados para quantificação e qualificação de lotes. O objetivo do trabalho foi avaliar um processo de análise de imagens de sementes para determinar níveis de contaminação de sementes verdes em lotes de soja. Foram avaliados lotes com 0, 2, 4, 12 e 22% de contaminação de sementes esverdeadas. As imagens foram capturadas por um aparato de baixo custo envolvendo um celular e iluminação LED. O processo foi dividido em duas etapas, compreendendo a...
Tipo: Folhetos
Palavras-chave: Retenção; Qualidade fisiológica; Tecnologia de semente; Agenda 2030; Selo ODS 9; Sustentabilidade; Objetivo de desenvolvimento sustentável; Glycine Max; Semente; Contaminação; Clorofila.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126547

Reação ao BYDV-PAV de cultivares de trigo do ensaio estadual do Rio Grande do Sul, em 2019.
Provedor de dados: 14
Autores: LAU, D.; PEREIRA, P. R. V. da S.; CASTRO, R. L. de.
O nanismo-amarelo em cereais de inverno no Brasil é causado, pre-dominantemente, pelo Barley yellow dwarf virus ? BYDV-PAV (Luteovirus, Luteoviridae) (Parizoto et al., 2013) e transmitido, principalmente, pelos afídeos Rhopalosiphum padi (Linnaeus, 1758), com ocorrências no outono e na primavera; e Sitobion avenae (Fabricius, 1775), com ocorrência na primavera (Parizoto et al., 2013).
Tipo: Folhetos
Palavras-chave: BYDV-PAV; Nanismo-amarelo; Cultivares de Trigo; Afídeos; Trigo; Rhopalosiphum padi virus; Barley yellow dwarf virus; Sitobion avenae; Sitobion avenae virus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123896

INFORMATIVO agropecuário de Rondônia: n. 3, Dezembro/2020.
Provedor de dados: 14
Tipo: Folhetos
Palavras-chave: Grão; Mandioca; Banana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128317

Processamento de Edamame em Vagens para Agroindústria de Pequeno Porte.
Provedor de dados: 14
Autores: FELBERG, I.; TORREZAN, R.; PINTO, M. S. V.; NASCIMENTO NETO, F. do.
O consumo do edamame, alimento tradicional de alguns países do continente asiático, vem ganhando espaço no mercado brasileiro com a comercialização de um produto importado na forma de vagens e ou grãos congelados. Para atender a esta demanda, a Embrapa desenvolveu a cultivar de soja BRS 267, especialmente para consumo como edamame, que é colhida com seus grãos verdes brilhantes, porém completamente desenvolvidos. Neste trabalho, o processamento do edamame em vagens é descrito preconizando as boas práticas de fabricação de alimentos, especificando as etapas do seu processamento e de sua conservação sob refrigeração ou congelamento em uma unidade agroindustrial de pequeno porte. As vagens do edamame devem ser adequadamente processadas para que seus grãos...
Tipo: Folhetos
Palavras-chave: BRS 267; Gregação de valor; Glycinemax (L) Merril; Processamento Mínimo; Soja; Hortaliça; Tecnologia de Alimento; Food technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128745

A Contribuição da ciência para a agropecuária no Acre: anais.
Provedor de dados: 14
Autores: SEMINÁRIO DA EMBRAPA ACRE DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO, 2., 2019, Rio Branco, AC.
O II Seminário da Embrapa Acre de Iniciação Científica e Pós-Graduação teve por objetivo apresentar trabalhos de pesquisa realizados por estudantes de graduação ou pós-graduação, pesquisadores e analistas da Embrapa Acre para resolução de problemas específicos da região. Além disso, o evento ocorreu no intuito de dar continuidade ao esforço despendido pela equipe de, anualmente, apresentar para a sociedade como um todo os resultados de pesquisa gerados na Embrapa Acre, com o apoio dos Programas Institucionais de Bolsas de Iniciação Científica (Pibic) e de Desenvolvimento Tecnológico e Inovação (Pibiti) do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). Esta publicação está de acordo com os Objetivos de Desenvolvimento Sustentável 2...
Tipo: Anais e Proceedings de eventos
Palavras-chave: Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Selo ODS 2; Selo ODS 12; Pesquisa Agrícola; Agricultural research.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125392

Cultivos de milho-verde e feijão-caupi consorciados com seringueira no Amazonas.
Provedor de dados: 14
Autores: OLIVEIRA, I. J. de; CORDEIRO, E. R.; PINHEIRO, J. O. C.
O objetivo deste trabalho foi avaliar a viabilidade do plantio de milho-verde e feijão-caupi cultivados em sucessão e consorciados com a seringueira no Amazonas.
Tipo: Folhetos
Palavras-chave: Milho-verde; Zea Mays; Consorciação de Cultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128448

CULTIVOS alternativos em consórcio com melancia irrigada: programa 31: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre os cultivos alternativos em consórcio com melancia irrigada. O produtor vai aprender a fazer esta modalidade de consórcio, que tem a melancia como cultura principal. O engenheiro agrônomo Admar Bezerra, da Embrapa Roraima, conta que o já consagrado plantio conjunto da melancia com a mandioca, agora ganhou o acréscimo do milho, do feijão-caupi, do amendoim e da batata doce, que apresentam bom desempenho no cultivo em consórcio.
Tipo: Gravações de som
Palavras-chave: Consorciação de Cultura; Melancia; Produtor; Rotação de Cultura; Milho; Feijão de Corda; Amendoim; Batata Doce; Irrigação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124125

Bioindicadores de qualidade do solo em função de cultivos de outono-inverno.
Provedor de dados: 14
Autores: GIROLETTA, C. M. dos S.; CAPRISTO, D. P.; ABREU, H. K. A. de; FACHINELLI, R.; CECCON, G.
Tipo: Resumo em anais e proceedings
Palavras-chave: Integração lavoura pecuária; Solo; Solo Argiloso; Manejo do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126574

Novas cultivares de mandioca para produção de farinha e fécula nas condições do Cerrado do Brasil Central.
Provedor de dados: 14
Autores: VIEIRA, E. A.; FIALHO, J. de F.; OLIVEIRA, C. M. de; RINALDI, M. M.; FERNANDES, F. D.
Com o objetivo de atender a demanda por opções de cultivares de mandioca para produção de farinha e fécula adaptadas ao plantio mecanizado nas condições do Cerrado do Brasil Central, a Embrapa Cerrados disponibiliza aos produtores as cultivares BRS 417, BRS 418 e BRS 419. Geração dos clones As cultivares de mandioca para produção de farinha e/ou fécula BRS 417, BRS 418 e BRS 419 foram selecionadas dentro de populações, geradas por meio do cruzamento entre os acessos conservados no Banco Regional de Germoplasma do Cerrado (BGMC) BGMC 1304 (clone 9661/06) x BGMC 788 (IAC 14), BGMC 1304 (clone 9661/06) x BGMC 56 (Branca de Santa Catarina) e BGMC 982 (IAPAR 19) x BGMC 436 (IAC 12-829), respectivamente. Em todas as etapas da seleção, os plantios e as colheitas...
Tipo: Folhetos
Palavras-chave: Mandioca; Farinha; Fécula; Cerrado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131205

MAIS mel em colmeias com rainhas de qualidade: programa 7: Sul.
Provedor de dados: 14
O programa desta semana fala sobre os cuidados que os apicultores devem ter com as abelhas rainhas e seus apiários para manter as colmeias fortes e produtivas. A abelha rainha, com o passar do tempo, diminui a produção de feromônios e com isso, as operárias reduzem as atividades na colmeia, prejudicando a produção de mel. No Prosa Rural desta semana você saberá como é importante manter as colmeias com a abelha rainha produtiva e quando esta envelhecer, realizar a troca da rainha. Participa do programa a pesquisadora da Embrapa Meio-Norte, Fábia Pereira.
Tipo: Gravações de som
Palavras-chave: Abelha Rainha; Apiário; Colméia; Feromônio; Mel.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120750

PROVA de leite a pasto de zebuinos leiteiros: programa 10: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana mostra como melhorar a produtividade dos rebanhos bovinos leiteiros do Brasil Central, especialmente de raças zebuínas leiteiras. O pesquisador Carlos Frederico Martins, da Embrapa Cerrados, fala sobre os benefícios da Prova Brasileira de Produção de Leite a Pasto do Zebu Leiteiro, realizada em parceria com a Associação de Criadores de Zebu do Planalto, a Associação Brasileira de Criadores de Zebu e produtores da região. A avaliação identifica, sem artificialismos, matrizes superiores para a produção de leite a pasto a partir de atributos zootécnicos de interesse comercial.
Tipo: Gravações de som
Palavras-chave: Leite; Gado Leiteiro; Gado Zebu; Produtividade; Matriz.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121485

Hortaliça como comprar, conservar e consumir: chuchu.
Provedor de dados: 14
Autores: LANA, M. M.; SANTOS, F. F. dos; MELO, M. F. de; TAVARES, S. A.; MATOS, M. J. L. F.
Chuchu. Como comprar. Como conservar. Como consumir. Doce de chuchu com banana. Suflê de chuchu.
Tipo: Folders
Palavras-chave: Chuchu; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125803

Estado da arte do melhoramento genético de pimenteira-do-reino (Piper nigrum L.) na Embrapa Amazônia Oriental.
Provedor de dados: 14
Autores: POLTRONIERI, M. C.; RODRIGUES, S. de M.; LEMOS, O. F. de; MENEZES, I. C. de; BOTH, J. P. C. L.
Este trabalho mostra o andamento e as respostas das atividades de pesquisa do programa de melhoramento genético de pimenteira-do-reino, enfatizando as técnicas de polinização controlada para obtenção de híbridos, tanto intraespecífico quanto interespecífico, cujas sementes são submetidas a método de germinação e propagação de plantas em cultivo in vitro, das quais, após caracterização e avaliação, serão selecionadas aquelas com características de precocidade, resistência a pragas e doenças, estresse hídrico, mais produtivas e adaptadas ao cultivo em tutor vivo.
Tipo: Folhetos
Palavras-chave: Pimenta do Reino; Piper Nigrum; Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118762

PALMA e melancia forrageiras resistentes à seca: programa 40: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana, você tem um encontro marcado com o Prosa Rural para saber sobre palma forrageira e melancia forrageira resistentes à seca. A palma e a melancia forrageira são bem resistentes à seca. A melancia forrageira tem uma particularidade relacionada à sua conservação: o fruto, após maduro e colhido, mantém suas qualidades nutricionais por mais de um ano. Já a palma, mesmo amadurecida, pode ser deixada no campo, que não perde suas características forrageiras. As duas forrageiras têm em comum a capacidade de acumular água nos seus tecidos, podendo suprir parte da necessidade de consumo dos rebanhos nos períodos de estiagem. Participam do programa os pesquisadores da Embrapa Semiárido: Tadeu Voltolini e Gherman de Araújo.
Tipo: Gravações de som
Palavras-chave: Melancia do Campo; Estiagem; Palma Forrageira; Rebanho; Seca.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126150

ESTRATÉGIAS para cuidar do pasto como se fosse uma lavoura: programa 15: Norte.
Provedor de dados: 14
Esta semana o Prosa Rural divulga estratégias para o produtor cuidar do pasto como se fosse uma lavoura. Manejar o pasto a partir de práticas adequadas, como se faz com uma lavoura, é uma forma de o produtor obter ganhos de eficiência com o aumento da produtividade animal, ao mesmo tempo em que conserva o solo, evitando os efeitos indesejáveis da degradação e dos períodos de seca. A pesquisadora Giovana Maciel, da Embrapa Cerrados, explica quais são os benefícios trazidos ao sistema produtivo com essa prática, capaz de transformar o modelo tradicional da pecuária brasileira, a partir da incorporação de tecnologias mais apropriadas que garantem um melhor custo-benefício.
Tipo: Gravações de som
Palavras-chave: Produtividade animal; Pastagem; Conservação do Solo; Tecnologia; Lavoura; Produtor; Pecuária; Custo-Benefício.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122019

Taquari: Nem rio nem morto, mas o maior megaleque do Pantanal cheio de oportunidades.
Provedor de dados: 14
Autores: BERGIER, I.; ABREU, U. G. P. de; LACERDA, A. C. A. de.
Tipo: Artigo na mídia
Palavras-chave: Sedimentação; Conservação; Natural resources conservation; River water.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125318

Ganha-ganha: plantas alimentam bactérias e recebem nutrientes de volta.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000984891/ganha-ganha-plantas-alimentam-bacterias-e-recebem-nutrientes-de-volta.html.
Tipo: Artigo na mídia
Palavras-chave: Bioestruturação dos solos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121488

Características estruturais e os processos da Inspeção Federal em abatedouros de suínos no Brasil frente à proposta de implementação de procedimentos baseados em risco.
Provedor de dados: 14
Autores: MARTINS, F. M.; COLDEBELLA, A.; ALBUQUERQUE, E. R; KICH, J. D.; HENN, J. D.; SILVEIRA, R. H. da.
Tipo: Folhetos
Palavras-chave: Agroindústria; Suíno; Carne; Abatedouro; Frigorífico; Inspeção Sanitária; Legislação; Saúde Pública; Políticas Públicas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128679

Produção de batata-doce utilizando mudas produzidas em bandejas com diferentes volumes de célula e períodos de enraizamento.
Provedor de dados: 14
Autores: MELO, R. A. de C. e; JORGE, M. H. A.; VENDRAME, L. P. de C.; PILON, L.; ROSSETTO, L. M.
O objetivo do presente estudo foi avaliar a produtividade de batata-doce utilizando mudas de bandejas com diferentes volumes de célula e períodos de enraizamento do segmento apical de ramas nesses contentores. Assim, de março (enraizamento) a julho (colheita) de 2019, na área Embrapa Hortaliças, foi conduzido um experimento em arranjo fatorial 3 x 3 + 1, em blocos casualizados com quatro repetições.
Tipo: Folhetos
Palavras-chave: Ipomoea Batatas; Reprodução Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124344

Zoneamento edafoclimático da nogueira-pecã para a região sul do Brasil.
Provedor de dados: 14
Trata-se de um instrumento suporte para o sistema produtivo e políticas públicas, no qual se identificam as zonas aptas e inaptas para cultivos, nesse caso para nogueira-pecã, com base em informações acerca do clima, do solo e de aspectos ambientais, de maneira a aprimorar a exploração dos recursos, proteger a natureza e viabilizar a sustentabilidade dos empreendimentos socioeconômicos.
Tipo: Livros
Palavras-chave: Noz Peca; Zoneamento Agrícola; Zoneamento Climático; Distribuição Geográfica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126889

Clones de cajueiro.
Provedor de dados: 14
Autores: EMBRAPA AGROINDÚSTRIA TROPICAL.
Nesta publicação, a equipe de pesquisadores da Embrapa buscou todos os dados já publicados na literatura científica sobre seus clones de cajueiro, bem como utilizou dados de experimentos em andamento em diversas regiões do Nordeste, considerando sempre plantas adultas (acima de 6 anos de idade) e frutos no ponto de colheita. Os dados estão disponibilizados em médias absolutas e em faixas de valores (colocados entre parênteses), considerando as variações entre climas, solos, chuvas e manejos (irrigado ou sequeiro, com ou sem adubação, entre outros) que ocorrem nas regiões produtoras. O objetivo desta publicação é ajudar o produtor na escolha do que plantar e o que se pode esperar de cada clone de cajueiro lançado pela Embrapa Agroindústria Tropical.
Tipo: Folders
Palavras-chave: Clones de cajueiro; Cajueiro-anão; Cajueiro-comum; Cajueiro híbrido; Clone; Anacardium Occidentale.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125932

Cria Certo: simulador de resultados de técnicas reprodutivas na bovinocultura.
Provedor de dados: 14
Autores: AMARAL, T. B.; COSTA. F. P.; CARROMEU, C.; LUCAS JUNIOR, N. C. de.
Tipo: Folhetos
Palavras-chave: Pecuária de corte; Pecuária; Bovino; Tecnologia Agrícola; Computer software.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129108

Jovens talentos 2020: resumos.
Provedor de dados: 14
Autores: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA CERRADOS, 2020, Planaltina, DF.
O Encontro de Iniciação Científica da Embrapa Cerrados: Jovens Talentos vem sendo realizado, anualmente, desde o ano de 2000. Durante esse período, a Embrapa Cerrados incentivou a apresentação de resultados dos trabalhos científicos desenvolvidos por estagiários em níveis de graduação e de pós-graduação. O Encontro foi reformulado para atender às exigências do ano de 2020, que, em função da pandemia do coronavírus, teve a tecnologia como grande aliada. Os trabalhos foram mostrados em apresentações orais e em vídeos, na modalidade a distância, com transmissão feita pela página do evento via webconferência, e contou com a participação da banca examinadora, dos estudantes e da comissão organizadora. Todos os vídeos das apresentações estiveram disponíveis no...
Tipo: Anais e Proceedings de eventos
Palavras-chave: Evento; Pesquisa; Pesquisa Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129743

Pimenteira-do-reino.
Provedor de dados: 14
Autores: OLIVEIRA, R. F. de; ARAUJO, S. M. B.; BRASIL, E. C.; RODRIGUES, J. E. L. F.; NAKAYAMA, L. H. I.
Tipo: Parte de livro
Palavras-chave: Pimenta do Reino.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127276

Desempenho de genótipos mandioca de mesa em sistema orgânico de produção no Distrito Federal .
Provedor de dados: 14
Autores: FIALHO, J. de F.; VIEIRA, E. A.; MARCHI, G.; SANTOS JUNIOR, J. de D. G. dos; REIN, T. A.; SOUZA-SILVA, J. C.; MALAQUIAS, J. V.; SILVA, D. R. G.
Resumo - O manejo adequado do cultivo da mandioca (Manihot esculenta Crantz) em sistemas orgânicos de produção permite produtividade e qualidade ótimas, e valorização pelo mercado. Para isso, são necessários conhecimentos de manejo da cultura e do solo, bem como a utilização de cultivares produtivas. Em uma área sob cultivo orgânico, foram conduzidos dois experimentos de competição, em delineamento de blocos ao acaso, em quatro repetições, sendo avaliados quatro cultivares e um clone no primeiro, safra de 2013/ 2014; e seis cultivares no segundo, safra de 2014/2015. A produtividade de raízes foi menor no primeiro experimento que no segundo, possivelmente devido à deficiência de Mn, associada à condição de alto pH do solo; no segundo, a cultivar BRS 399,...
Tipo: Folhetos
Palavras-chave: Cultivo; Mandioca; Agricultura Orgânica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130403

Advances and future challenges.
Provedor de dados: 14
Autores: COSTA, J. R. da; ALENCAR, J. R. de; COSTA, P. da.
Highlights of Embrapa. Future challenges.
Tipo: Parte de livro
Palavras-chave: Embrapa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129315

Milheto e os preceitos da Economia Verde.
Provedor de dados: 14
Autores: OLIVEIRA, M. F. de; ASSIS, R, L. de; NETTO, D. A. M.
As mudanças na sociedade moderna direcionam para hábitos e costumes contemporâneos focados na conscientização e usos de recursos com preservação do ambiente. Na atividade agropecuária, sobretudo em um país de dimensão continental nos trópicos como o Brasil, estas mudanças imprimem conceitos e práticas diferenciadas, baseados na bioeconomia, e admitindo progressivamente alternativas de modelos e sistemas de produção, incluindo a economia circular, renovável, verde - para ambientes de uma agricultura rural, periurbana e urbana. A produção de alimentos por técnicas sustentáveis e a preservação ambiental no ambiente rural brasileiro está em expansão e tornando-se uma das relevantes prioridades de agentes privados e públicos. O uso de boas práticas agrícolas...
Tipo: Folhetos
Palavras-chave: Sustentabilidade; Objetivo de desenvolvimento sustentável; Agenda 2030; Selo ODS; Pennisetum Americanum; Recurso Energético; Biomassa; Etanol; Biodiesel.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122743

Hortaliça como comprar, conservar e consumir: couve-de-bruxelas.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Couve-de-bruxelas. Como comprar. Como conservar. Como consumir. Couve-de-bruxelas com tomate seco. Risoto de couve-de-bruxelas.
Tipo: Folders
Palavras-chave: Couve-de-bruxelas; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125870

O efeito do Covid-19 nas exportações de manga do Brasil.
Provedor de dados: 14
Autores: LIMA, J. R. F. de.
Dos trópicos para o mundo: caminhos para destaque internacionsl, impactos da pandemia nas exportações de manga, o Covid-19 e a fruticulura no Vale do São Francisco.
Tipo: Artigo na mídia
Palavras-chave: Vale do São Francisco; Impacto da pandemia; Covid 19; Manga; Fruticultura; Exportação; Mercado; Mercado Produtor; Mangoes; Marketing strategies; Marketing; Marketing costs.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130422

TECNOLOGIA RMD: feijão resistente ao mosaico dourado.
Provedor de dados: 14
Tecnologia inédita com resistência ao vírus do mosaico-dourado. Manejo pré-semeadura. Manejo durante o desenvolvimento da cultura. Manejo pós-colheita.
Tipo: Folders
Palavras-chave: Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Mosaico Dourado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121270

Vida saudável: dicas de nutrição e cultivo de alimentos.
Provedor de dados: 14
Autores: FEDDERN, V.; SOUZA, M. V. N. de; LORENZETT, M.
Tipo: Folhetos
Palavras-chave: Cultivo de horta; Alimentação; Habito Alimentar; Nutrição Humana; Programa de Nutrição; Plantio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124965

Informações técnicas sobre substratos utilizados na produção de mudas de hortaliças.
Provedor de dados: 14
Autores: JORGE, M. H. A.; MELO, R. A. de C. e; RESENDE, F. V.; COSTA, E.; SILVA, J. da; GUEDES, I. M. R.
Esta publicação tem como objetivo disponibilizar informações técnicas de cunho prático sobre substratos para a produção de mudas de hortaliças em bandejas multicelulares, mais especificamente sobre os tipos de materiais utilizados nas formulações, suas características e recomendações de uso.
Tipo: Folhetos
Palavras-chave: Hortaliça; Substrato de Cultura; Muda.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125796

Programa de Melhoramento Genético de Caprinos Leiteiros - Capragene, 3º Sumário de Avaliação Genética, 2º Sumário de Avaliação Genética Genômica, Ano 2020 - Raça Saanen.
Provedor de dados: 14
Autores: FACO, O.; SILVA, M. V. G. B.; PANETTO, J. C. do C.; OTTO, P. I.; LOBO, A. M. B. O.; FONSECA, J. F. da; LOBO, R. N. B.; PAIVA, S. R.; CAETANO, A. R.
O Programa de Melhoramento Genético de Caprinos Leiteiros (Capragene) completa 15 anos, tornando-se a mais longa e ininterrupta iniciativa, em bases científicas, voltada à promoção do melhoramento genético de caprinos para produção de leite do Brasil. Iniciou-se como um projeto de pesquisa e ganhou força a partir do estabelecimento da parceria entre a Embrapa e os criadores, sob a liderança da Associação dos Criadores de Caprinos e Ovinos de Minas Gerais (ACCOMIG/Caprileite), e do fomento por parte do Ministério da Agricultura, Pecuária e Abastecimento (Mapa), e que proveu recursos necessários à implantação do Serviço de Controle Leiteiro (SCL). Além da implantação do SCL, ferramenta fundamental para a criteriosa coleta dos dados de desempenho e de...
Tipo: Livros
Palavras-chave: Caprino; Genética Animal; Melhoramento Genético Animal; Goats; Animal genetics; Breeding and Genetic Improvement.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128273

Acetoína: produção de acetoína a partir de glicerina.
Provedor de dados: 14
Autores: SALUM, T. F. C.
Processo fermentativo de produção de acetoína a partir de glicerina bruta proveniente da produção de biodiesel com utilização de nova linhagem bacteriana.
Tipo: Folders
Palavras-chave: Biotecnologia industrial; Indústria Alimentícia; Glicerina; Acetoin.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123212

Melhoramento genético de eucaliptos subtropicais: contribuições para a espécie Eucalyptus benthamii.
Provedor de dados: 14
Autores: SANTOS, P. E. T. dos; PALUDZYSZYN FILHO, E.; MAGALHAES, W. L. E.; BEN, T. J.; MOREIRA, S.
Os eucaliptos desempenham um papel relevante no agronegócio florestal nacional, participando ativamente de várias cadeias produtivas, especialmente aquelas atreladas ao uso da matéria-prima madeira obtida das plantações. Nesse aspecto, a produção de celulose e papel, chapas de fibras, biorredutor para siderurgia, bio-óleo, etanol de segunda geração, lenha para energia, componentes serrados e peças roliças tratadas em usinas de preservação são destaques e encontram-se muito bem estruturadas. Na região Sul do Brasil, as plantações de eucaliptos perfazem pouco mais de 10% do total da área plantada com o gênero no País, sendo as produções direcionadas principal-mente para celulose, energia e serraria.As contribuições da Embrapa Florestas, no contexto da...
Tipo: Livros
Palavras-chave: Melhoramento genético; Sustentabilidade; Eucalipto; Floresta; Madeira; Silvicultura; Eucalyptus benthamii.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128348

Evolução em paisagismo e floricultura tropical.
Provedor de dados: 14
Autores: GONÇALVES, M. C. A.; SEGOVIA, J. F. O.
Tipo: Parte de livro
Palavras-chave: Planta Ornamental; Floricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129381

Quantificação das áreas destinadas a preservação nas propriedades rurais do Estado do Piauí.
Provedor de dados: 14
Autores: CASTRO, G. S. A.; OSHIRO, O. T.; CARVALHO, C. A. de.
Buscando um melhor entendimento da dimensão territorial da agropecuária brasileira, este trabalho tem por objetivo apresentar, em números e mapas, a contribuição dos produtores rurais do estado do Piauí na preservação do meio ambiente, com base nos dados geocodificados relativos às declarações desses produtores sobre áreas destinadas à preservação da vegetação nativa dentro de seus imóveis rurais no estado do Piauí, as quais são disponibilizadas no Cadastro Ambiental Rural.
Tipo: Folhetos
Palavras-chave: Cadastro ambiental rural; Preservação da vegetação nativa; Imóveis rurais.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126206

Qualidade visual e perdas pós-colheita de hortaliças folhosas no varejo: dois estudos de caso no Distrito Federal, Brasil.
Provedor de dados: 14
Autores: LANA, M. M.; MOITA, A. W.
Esta obra apresenta os resultados de dois levantamentos de perdas pós-colheita de hortaliças folhosas realizados entre 2017 e 2019. Ambos os estudos foram delineados para responder às seguintes perguntas: 1) Qual é a qualidade visual das hortaliças folhosas recebidas no mercado varejista do Distrito Federal? 2) Qual é o volume de descarte desses produtos no varejo? 3) Quais são as causas do descarte? 4) Como essas variáveis são influenciadas pela espécie hortícola, pelos fornecedores e pelas lojas avaliadas?
Tipo: Livros
Palavras-chave: Boas práticas; Hortaliça Folhosa; Perda Pós-Colheita; Segurança Alimentar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128076

Passatempo (para enquanto a arroba sobe).
Provedor de dados: 14
Autores: MEDEIROS, S. R. de.
Neste mês de cotação da arroba firme e em alta, essa coluna completa cinco anos de textos mensais. Foram 60 textos olhando diversas temáticas da pecuária e do agro do Brasil por variados ângulos. Como forma de marcar a data, esse primeiro texto dessa promessa de início de novo quinquênio, será no formato de ?Quiz", com perguntas sobre diversos assuntos abordados ao longo desse tempo. Assim, ao mesmo tempo que seja um passatempo nesses tempos de quarentena, é possível recuperar um pouco do que foi essa jornada e criar uma oportunidade de mais pessoas a conhecerem ou, talvez, revisitarem as informações.
Tipo: Artigo na mídia
Palavras-chave: Cotação da arroba; Quiz; Quinquênio de informações.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129274

Prospecção e quantificação de carotenoides em frutos de tucumã-do-pará.
Provedor de dados: 14
Autores: ABREU, L. F.; CARDOSO, T. N.; DANTAS, K. das G. F.; OLIVEIRA, M. do S. P. de.
Os frutos de tucumã-do-pará vêm se destacando quantitativamente como uma importante fonte de carotenoides, contudo, a variabilidade entre indivíduos conservados em banco de germoplasma indicam também, em razão das tonalidades de cores observadas, uma diferença qualitativa desses compostos. O objetivo do trabalho foi prospectar e quantificar carotenoides da parte comestível de frutos de tucumã-do-pará (Astrocaryum vulgare Mart.). Foram utilizadas 18 amostras de frutos provenientes de palmeiras do banco de germoplasma de tucumã (BAG-Tucumã) da Embrapa Amazônia Oriental para análise de carotenoides por espectrofotometria (UV/VIS). A prospecção considerou os espectros de absorção característicos de cada carotenoide, aliados aos dados disponíveis na literatura,...
Tipo: Folhetos
Palavras-chave: Tucumã-do-pará; Tucum; Astrocaryum vulgare; Carotenóide; Pigmento; Banco de Germoplasma.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119582

Estabelecimento In Vitro e criopreservação de espécies de Butia (Arecaceae) para conservação Ex Situ de germoplasma.
Provedor de dados: 14
Autores: TANIGUCHI, M.; ESLABÃO, M. P.; SILVA, T. B. da; BARBIERI, R. L.; FERNANDO, J. A.; DUTRA, L. F.; HEIDEN, G.
Este trabalho objetivou estabelecer in vitro e criopreservar quatro espécies ocorrentes no Bioma Pampa: B. lallemantii, B. odorata, B. paraguayensis e B. yatay.
Tipo: Folhetos
Palavras-chave: Butiá; Propagação Vegetativa; Cultura In Vitro; Criopreservação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127234

Tecnologias ajudam a melhorar pastagens a custos reduzidos.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000985596/tecnologias-ajudam-a-melhorar-pastagens-a-custos-reduzidos.html.
Tipo: Artigo na mídia
Palavras-chave: Manejo bovino; Manejo de pastagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121569

A IMPORTÂNCIA do controle da qualidade do mel: programa 32: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre os cuidados que os apicultores devem ter com a qualidade do mel de abelha. Além de cuidar dos apiários, fazendo o manejo adequado, é importante realizar análises do mel produzido, para garantir que a qualidade do produto esteja de acordo com o que determina o Ministério da Agricultura, Pecuária e Abastecimento. A pesquisadora Ana Lúcia Horta fala sobre as principais análises que devem ser feitas para avaliar a maturidade e a pureza do mel de abelhas.
Tipo: Gravações de som
Palavras-chave: Mel; Apicultura; Apiário; Abelha; Honey bees.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124747

Empanado de Tilápia.
Provedor de dados: 14
Autores: TORREZAN, R.; REIS, C. C. de O. P. B. dos; SANTOS, D. A. dos; SÁ, D. de G. C. F. de; FURTADO, A. A. L.
A tilápia (Oreochromis niloticus) é um peixe de origem africana, indicada para criação em regiões tropicais (Pereira, 2012). Dentre os peixes criados em cativeiro, a tilápia é uma das espécies mais cultivadas mundialmente e se destaca das demais pelo rápido crescimento, alta produção de ovos e alevinos e carne branca de excelente qualidade e sabor, tendo nota máxima em testes internacionais de degustação (Criação..., 2014).A tilápia é comercializada, basicamente, na forma de filés congelados, mas, quando processada, parte da carne fica aderida à pele e às espinhas. Este material, ao passar por uma despolpadeira de pescado, gera a carne mecanicamente separada (CMS). A produção de CMS é uma tecnologia que permite maior aproveitamento de carne em comparação...
Tipo: Folhetos
Palavras-chave: Tecnologia de Alimento; Produto de Origem Animal; Processamento; Food technology; Animal products; Food processing.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128755

Microalgas: produção de betacaroteno por microalgas.
Provedor de dados: 14
Autores: MIRANDA, C. H. B.
Tipo: Folders
Palavras-chave: Cultivo algal; Betacaroteno; Biomassa; Indústria Alimentícia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123230

MILHO verde e doce: opção para agricultura familiar: programa 3: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana o Prosa Rural traz pra você um programa sobre o milho verde e doce: opção para a agricultura familiar e horticultura. Diferente do milho-verde, o milho-doce tem uma concentração maior de açúcar e leva de 85 a 90 dias do plantio à colheita. Você vai conhecer um pouco sobre o manejo do milho doce e saber por que essa hortaliça está incluída na categoria de milhos especiais. Participam do programa os pesquisadores da Embrapa Milho e Sorgo, Israel Alexandre Pereira Filho e Flávia França
Tipo: Gravações de som
Palavras-chave: Milho Verde; Agricultura Familiar; Horticultura; Milho Doce.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119519

Hortaliça não é só salada. Hortaliça orgânica - certificação.
Provedor de dados: 14
Autores: LANA, M. M.; RESENDE, F. V.; VALADARES, L. C.
Como reconhecer uma hortaliça orgânica no mercado. Selo na embalagem. Declaração de cadastro. Informação no ponto de venda. Saiba mais.
Tipo: Folders
Palavras-chave: Hortaliça; Agricultura Orgânica; Certificação de Produto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126595

MACROFUNGOS: oportunidades para obtenção de bioprodutos renováveis: programa 36: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre as oportunidades propiciadas pelos macrofungos, que além de frutificarem os cogumelos, oferecem aos produtores e às agroindústrias a possibilidade de obtenção de bioprodutos sustentáveis e rentáveis. O pesquisador Félix Siqueira, da Embrapa Agroenergia, explica que os macrofungos fermentam resíduos de algodão, dendê, mamona, arroz e coco-verde, entre outros. Para saber como essa biotransformação pode ser utilizada para adubo de plantas ou alimentação animal, não perca o Prosa Rural, o programa de rádio da Embrapa!
Tipo: Gravações de som
Palavras-chave: Macrofungos; Agroindústria; Bioprodutos; Cogumelo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125228

Francisca e Miguel e a beleza na produção do pacará: Centrinho da Aparecida, Lago do Junco, MA.
Provedor de dados: 14
Editores técnico da coleção: Roberto Porro e Anderson Cássio Sevilha.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122914

Irrigação da cultura da mandioca.
Provedor de dados: 14
Autores: COELHO FILHO, M. A.
Tipo: Folhetos
Palavras-chave: Irrigação; Mandioca.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121941

Desdobramentos da transição agroecológica do assentamento rural 72, em Ladário/MS.
Provedor de dados: 14
Autores: COSTA, E. A. da; FEIDEN, A.
O objetivo deste trabalho é descrever os desdobramentos do processo de transição agroecológica do assentamento rural 72, em Ladário/MS induzida por pesquisadores da Universidade Federal de Mato Grosso do Sul e da Embrapa Pantanal, juntamente com os parceiros estabelecidos ao longo de oito anos (2011-2019) de intervenção. O público alvo da ação são agricultores assentados de reforma agrária extremamente pobres, dependentes de bolsa família. Utilizou-se da pesquisa participante para descrição desta experiência. Observou-se que impulsos promovidos por animadores territoriais em parceria possuem capacidade dinamizadora do desenvolvimento das dimensões econômica, social e ambiental. Contudo para que as ações tenham êxito, é necessário respeitar as dinâmicas e...
Tipo: Folhetos
Palavras-chave: Agricultura Sustentável; Agricultura Ecológica; Sustainable agriculture; Agroecology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128993

HORTALIÇAS em revista. Hortas em pequenos espaços.
Provedor de dados: 14
Capa Em tempo de isolamento social, aumenta procura por cultivo de horta em quintais e varandas. Artigo Coronavírus: cuidados no processamento e no consumo de hortaliças. Artigo Crise do coronavírus afeta exportações e importações brasileiras de hortaliças. Artigo Principais impactos da crise do coronavírus sobre as cadeias produtivas de hortaliças. Artigo As mudanças ambientais e a saúde humana: impactos da degradação ambiental sobre surtos de doenças infecciosas. Pesquisa e desenvolvimentoEmbrapa publica guia para identificação de inimigos naturais de pragas em cultivos de hortaliças. HomenagemNossa despedida ao primeiro chefe-geral da Embrapa Hortaliças. ReceitaFeijão-vagem: hortaliça nutritiva e de fácil preparo para incrementar suas receitas.Foco na...
Tipo: Fascículos de periódicos
Palavras-chave: Coronavirus; Feijão-vagem; Cultivar BRS Acarijó 56; Horta Caseira; Hortaliça; Comercialização; Cadeia Produtiva; Mandioquinha Salsa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123535

Embrapa em números.
Provedor de dados: 14
Autores: EMBRAPA. Secretaria Geral. Gerência de Comunicação e Informação.
O Embrapa em Números é uma publicação desenvolvida a partir de dados disponibilizados pelas Unidades Centrais e Descentralizadas da Embrapa (UCs e UDs) e por diversas outras instituições do Brasil e do exterior. Sob a forma de gráficos e tabelas, apresenta alguns indicadores agropecuários e dados sobre infraestrutura, orçamento, equipes e programação de pesquisa da Embrapa, reunindo informações que permitem traçar um panorama geral dos trabalhos da Empresa.
Tipo: Livros
Palavras-chave: Instituição de Pesquisa; Pesquisa Agrícola; Inovação; Desenvolvimento Sustentável; Produção Agrícola; Recurso Genético.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129688

O mercado de peixes da piscicultura no Brasil: estudo do segmento de supermercados.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; FLORES, R. M. V.; ROCHA, H. S.; SILVA, H. J. T. da; SONODA, D. Y.; CARVALHO, V. B. de; OLIVEIRA, L. de; RODRIGUES, F. L. M.
A piscicultura brasileira vem se desenvolvendo de forma robusta, com significativos avanços em termos de aumento da produção e profissionalização do setor. Os supermercados têm se consolidado como o principal canal de varejo de pescados em todo o Brasil e isso impõe a necessidade de melhor conhecer os hábitos dos consumidores deste segmento de mercado. Assim, este estudo apresenta resultados referentes a diferentes aspectos, tais como preferências e percepções dos consumidores quanto aos produtos da piscicultura, nível de conhecimento quanto às principais espécies, hábitos de consumo e características socioeconômicas dos consumidores. A pesquisa foi realizada em supermercados de Brasília (DF), Curitiba (PR), Manaus (AM), Recife (PE) e São Paulo (SP) e...
Tipo: Folhetos
Palavras-chave: Característica socioeconômica; Piscicultura; Peixe; Mercado; Consumo Alimentar; Habito Alimentar; Fish; Fresh market; Supermarkets; Food consumption.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124524

Núcleo de conservação in situ de bovino pantaneiro: Embrapa Pantanal.
Provedor de dados: 14
Autores: JULIANO, R. S.
(Embrapa Recursos Genéticos e Biotecnologia. Documentos, 371).
Tipo: Parte de livro
Palavras-chave: Bovino; Genética Animal; Cattle breeding; Animal genetics.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/883101

Validação hidrológica do "Camalhão Alto de Base Larga" como tecnologia conservacionista aplicada à cultura do tabaco.
Provedor de dados: 14
Autores: DENARDIN, J. E.; MARCON, G. P.; FAGANELLO, A.; LEMAINSKI, J.; BACK, A. J.; JUNQUEIRA, B. R.; OLIVEIRA, V. B. de.
O 'Manejo de Solo com "Camalhão Alto de Base Larga" é uma prática conservacionista associada ao sistema plantio direto, preparo reduzido do solo e preparo convencional do solo, usual em pe-quenos estabelecimentos rurais, na região Sul do Brasil. Integrado a espécies produtoras de grãos e cobertura de solo, como trigo (Triticum aestivum), centeio (Secale cereale), aveia preta (Avena strigosa), aveia branca (Avena sativa L.), milheto (Pennisetum glaucum L.), capim Sudão (Sorghum sudanense), sorgo (Sorghum spp.), mucuna (Mucuna spp.) e braquiária (Brachiaria spp.), o ?cama-lhão alto de base larga? vem sendo aplicado ao cultivo de tabaco (Nicotiana tabacum), soja (Glycine max L.), milho (Zea mays) e feijão (Phaseolus vulgaris) durante as estações de primavera...
Tipo: Folhetos
Palavras-chave: Trigo (Triticum aestivum); Tabaco; Camalhão alto de base larga; Preparo reduzido do solo; Preparo convencional do solo; Aveia preta; Aveia branca; Capim Sudão; Braquiária; Cobertura do Solo; Solo; Manejo do Solo; Camalhão; Trigo; Centeio; Milheto; Sorgo; Mucuna.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124792

Desvendando o software Fuzzy Inference System Professional - FisPro.
Provedor de dados: 14
Autores: CUNHA, L. M. S.; ANTUNES, J. F. G.; MOURA, M. F.
Seres humanos são capazes de lidar com processos bastante complexos, baseados em informações imprecisas ou aproximadas. Para apoiar esses processos, os Sistemas de Inferência Fuzzy Inference Systems (FIS) têm se mostrado ferramentas bastante apropriadas. Este documento apresenta, no formato de tutorial, conceitos sobre FIS e sua estrutura, o software Fuzzy Inference System Professional (FisPro) e um estudo de caso demonstrando a utilização de alguns recursos contidos neste software.
Tipo: Folhetos
Palavras-chave: Sistema de inferência fuzzy; Lógica fuzzy; Software FisPro; Fuzzy Inference Sytem; Fuzzy logic.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127936

Conservação in situ do cavalo pantaneiro : Embrapa Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.
(Embrapa Recursos Genéticos e Biotecnologia. Documentos, 371).
Tipo: Parte de livro
Palavras-chave: Cavalo; Genética Animal; Horses; Animal genetics.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/802480

Estoques de carbono no solo em sistemas pastoris para a produção leiteira.
Provedor de dados: 14
Autores: OLIVEIRA, P. P. A.; RODRIGUES, P. H. M.; PRAES, M. F. F. M.; FERNANDES, F. A.; PEDROSO, A. de F.
Na agropecuária, considerando o contexto das mudanças climáticas, o uso do solo está em foco; porque o solo pode ser fonte de emissões ou dreno de Gases de Efeito Estufa (GEE), dependendo do manejo realizado (IPCC, 2001). Alternativas importantes como manejar as pastagens dos sistemas de produção de forma a incrementar a adição de matéria-orgânica e a retenção de carbono (C) no solo evitam a emissão GEE e proporcionam drenos de C, evitando o aquecimento global (BAYER et al., 2006).
Tipo: Parte de livro
Palavras-chave: Gases de efeito estufa; Dreno de carbono; Manejo de pastagem; Sustentabilidade da pecuária leiteira; Estoque de C; Taxa de acúmulo de C; Bioma Mata Atlântica; Floresta Estacional Semidecidual; Estoque de carbono em profundidade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131452

INTENSIFICAÇÃO sustentável com ILPF: produzindo mais e com eficiência.
Provedor de dados: 14
Os sistemas de integração lavoura pecuária (ILP) e integração lavoura pecuária floresta (ILPF) são estratégias de produção que permitem a intensificação aumentando a produção de forragem em comparação ao sistema extensivo.
Tipo: Folhetos
Palavras-chave: Bem estar animal; Pastagem; Milho; Árvore; Animal; Carne.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128491

Roça sem fogo: da tradição das queimadas à agricultura sustentável na Amazônia.
Provedor de dados: 14
Este compêndio faz uma retrospectiva com textos já publicados nas séries Embrapa e em outros meios, além de textos originais que tratam da civilização do fogo na Amazônia, para que se entenda a sua trajetória e se desmistifique os eventuais ?vilões? dessa prática, reconhecendo até mesmo que, para o passado, essa era a única alternativa disponível, quando se deu o encontro de colonizados e colonizadores. A mais recente troca de experiências entre agricultores e pesquisadores resultou em uma coletânea de tecnologias alternativas apresentadas neste compêndio, que, se colocadas em prática pela maioria dos agricultores, certamente determinarão o ponto de inflexão dos problemas ambientais da complexa região amazônica.
Tipo: Livros
Palavras-chave: Agroecologia; Fogo; Queimada; Agricultura Sustentável; Agricultura Familiar; Mandioca; Bacuri; Banana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119432

Chá cítrico: processo de secagem.
Provedor de dados: 14
Autores: KROLOW, A. C. R.; OLIVEIRA, R. P. de.
Para se comprovar a possibilidade produzir chá usando-se somente cascas e folhas de citros, sem a adição de nenhuma outra espécie vegetal, neste trabalho, houve a necessidade de se definir o melhor processo para a secagem dessas partes, visando garantir tempo prolongado de vida útil e menor perda de compostos aromáticos e de sabor.
Tipo: Folhetos
Palavras-chave: Infusão; Citricultura; Chá; Fruta Cítrica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127059

Pesquisa com plantas medicinais no controle de alguns patógenos de interesse em animais de produção.
Provedor de dados: 14
Autores: CASTRO, K. N. de C.; FOGACA, F. H. dos S.; TEODORO, M. S.; CHAGAS, A. C. de S.; PEREIRA, A. M. L.; ANDRADE, I. M. de.
Tipo: Folhetos
Palavras-chave: Planta Medicinal; Controle Biológico; Saúde; Sanidade Animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127960

A integração de cultivos, criações e extrativismo pela família Cordeiro: São José dos Mouras, Lima Campos, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122900

Princípios de nutrição e adubação de flores e plantas ornamentais tropicais.
Provedor de dados: 14
Autores: SEGOVIA, J. F. O.
Tipo: Parte de livro
Palavras-chave: Planta Ornamental; Metabolismo Vegetal; Nutrição Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129379

Frutas para todos os gostos, à vontade.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000981635/frutas-para-todos-os-gostos-a-vontade-.html.
Tipo: Artigo na mídia
Palavras-chave: Fruticultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129579

Avaliação de impactos em propriedade agrícola no Amazonas.
Provedor de dados: 14
Autores: COSTA, J. R. da; SILVA, A. M. da.
Este trabalho apresenta a avaliação de impactos socioambientais e econômicos em propriedade agrícola localizada em um assentamento da reforma agrária, na zona rural de Manaus (Amazonas).
Tipo: Parte de livro
Palavras-chave: Sustentabilidade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126502

COVID-19: o que o suinocultor precisa saber.
Provedor de dados: 14
Autores: CARON, L.; VAZ, C. S. L.
Tipo: Folhetos
Palavras-chave: Coronavírus; COVID-19; SARS-CoV; Pig farm; Biosseguridade; Respiratory diseases; Cuidados; Prevenção; Suinocultura; Bronquite; Granja; Doença Respiratória; Transmissão de Doença; Swine; Biosecurity; Disease transmission.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120915

Adaptação de métodos para apoiar a gestão de agroindústrias: processamento mínimo de mandioca: estudo de caso.
Provedor de dados: 14
Autores: CELESTINO, S. M. C.; GASTAL, M. L.; XAVIER, J. H. V.; SILVA, M. A.
Tipo: Livros
Palavras-chave: Agroindústria familiar; Processamento Mínimo; Mandioca.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124556

COMO montar um desidratador de alimentos de baixo custo: programa 14: Norte.
Provedor de dados: 14
O Prosa Rural desta semana ensina como fazer um desidratador de alimentos, gastando apenas trinta por cento do que se pagaria por um similar industrial, com a mesma capacidade. Quem fala sobre essa tecnologia, que supre uma demanda da pequena produção, é o pesquisador Félix Cornejo, da Embrapa Agroindústria de alimentos. Noções de Boas Práticas de Processamento de Alimentos também estão no programa, que ainda informa como baixar o manual "Construa Você Mesmo um Desidratador de Alimentos", no site da Embrapa.
Tipo: Gravações de som
Palavras-chave: Desidratador; Pequena produção; Alimento; Processamento; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122015

APICULTURA: alimentação artificial para abelhas: programa 39: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre como produzir alimentação artificial para abelhas da espécie Apis mellifera. O pesquisador Daniel Santiago, da Embrapa Amazônia Oriental, traz detalhes sobre a importância dessa prática para manter os enxames saudáveis durante a entressafra e prepará-los para uma boa produtividade de mel durante a floração. O programa traz ainda receitas de suplementos alimentares para as abelhas. Para saber mais, não perca o Prosa Rural. O Prosa Rural é o programa de rádio da Embrapa!
Tipo: Gravações de som
Palavras-chave: Apicultura; Apis Mellifera; Entressafra; Alimentação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125239

Taxonomia integrativa de Meloidogyne oryzae (Nematoda: Meloidogynidae) parasitando arroz irrigado no sul do Brasil.
Provedor de dados: 14
Autores: MATTOS, V. da Silva; CARES, J. E.; GOMES, C. B.; GOMES, A. C. M. M.; MONTEIRO, J. da M. dos S.; CASTAGNONE-SERENO, P.; CARNEIRO, R. M. D. G.
Uma espécie de nematoide das galhas parasitando o arroz irrigado (Oryza sativa L.) no estado de Santa Catarina (Brasil) foi identificada como Meloidogyne oryzae Maas, Sanders e Dede, 1978, através de diferentes abordagens. A espécie foi estudada a partir dessa população brasileira e comparada com a descrição de M. oryzae do Suriname, com caracterizações morfológicas, bioquímicas e moleculares. A fêmea apresentou estilete mais longo (15,0 &amp;#956;m) que o de M. graminicola Golden; Birchfield (1965) (11,2 &amp;#956;m) com bulbos irregulares, vulva ?off-set? e a presença de ligeira protuberância na região posterior. A anelação pós-labial foi distinta do primeiro anel do corpo, o disco labial e os lábios medianos fundiram-se em uma estrutura em forma de...
Tipo: Folhetos
Palavras-chave: Meloidogyne oryzae; Caracterização morfológica; Caracterização enzimática.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125805

Application of real-time ultrasonography as a tool to increase reproductive efficiency of female pigs.
Provedor de dados: 14
Autores: MARQUES, M. G.; LEAL, D. F.; JORGE NETO, P. N.; VIANA, C. H. C.
Tipo: Folhetos
Palavras-chave: Ultrassonografia; Reprodução Animal; Suinocultura; Ultrassom.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123462

Comunidade de formigas nas faixas de proteção do reservatório da Itaipu Binacional e em áreas adjacentes: recomendações para o manejo.
Provedor de dados: 14
Autores: REIS FILHO, W.; NICKELE, M. A.; PENTEADO, S. do R. C.; SILVA, L. C. R. da; QUEIROZ, E C. de.
Este documento foi produzido a partir de uma demanda da Itaipu Binacional para facilitar a troca de informações entre os funcionários da empresa que trabalham direta e indiretamente com a recuperação e monitoramento de suas áreas, além de atuarem junto à comunidade lindeira. Há vários questionamentos em relação à ocorrência das formigas cortadeiras, que são insetos desfolhadores e que podem apresentar grande importância econômica em áreas de plantios agrícolas e florestais. Trata-se dos resultados do projeto de pesquisa ?Ocorrência e dinâmica populacional da mirmecofauna, desenvolvido na região do reservatório da Itaipu Binacional, em função de diferentes estágios de recuperação da área de preservação permanente?, executado pela Embrapa Florestas, em...
Tipo: Folhetos
Palavras-chave: Formiga cortadeira; Bioindicador; Praga; Manejo; Acromyrmex; Atta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123418

Impactos do Covid-19 ao setor agropecuário: resiliência para enfrentar o Cisne Negro de 2020.
Provedor de dados: 14
Autores: BAMBINI, M. D.
Cisne Negro é um termo que se refere a um evento que foge da normalidade e que está fora do âmbito das expectativas comuns e da possibilidade clara da previsão de sua ocorrência, podendo ser aplicado à pandemia da Covid-19 que, em cerca de 3 meses, se transformou de um surto local a uma emergência sanitária mundial. Este Boletim analisa a influência desta pandemia nas atividades e no desempenho do setor agropecuário brasileiro, mapeando as perspectivas identificadas por especialistas e na literatura. Ainda que o setor, como um todo, tenha reagido positivamente frente aos acontecimentos, os impactos foram bastante diferentes em cada cadeia produtiva, tendo em vista algumas ações preventivas tomadas como: as medidas de isolamento social, a paralisação do...
Tipo: Artigo na mídia
Palavras-chave: Pandemia; Covid-19; Setor agropecuário brasileiro; Agropecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123716

IMPORTÂNCIA da seleção genética do Nelore no Pantanal: programa 25: Centro-Oeste/Sudeste.
Provedor de dados: 14
No Prosa Rural desta semana vamos conhecer o trabalho de seleção genética da raça nelore, feito pela Embrapa, direcionado ao Pantanal. Pesquisadores de diferentes rebanhos de seleção genética da raça Nelore, em três Unidades de pesquisa da Embrapa, vêm desenvolvendo estudos de sistemas de produção e biótipos de bovinos que possam ser criados em sintonia com o ambiente, tentando causar o menor impacto, gerando aumento de renda para os pecuaristas pantaneiros. Os convidados do programa são os pesquisadores da Embrapa, Urbano Abreu, Luiz Otávio da Silva e Patrícia Tholon.
Tipo: Gravações de som
Palavras-chave: Gado Nelore; Biotipo; Bovino; Pecuarista; Renda; Seleção Genética; Sistema de Produção; Animal genetic resources; Cattle production; Beef cattle.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123574

16º Jornada Científica Embrapa Gado de Corte.
Provedor de dados: 14
Tipo: Anais e Proceedings de eventos
Palavras-chave: Melhoramento Genético Animal; Nutrição Animal; Pastagem; Produção Animal; Sanidade Animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127138

Vitivinicultura brasileira: panorama 2019.
Provedor de dados: 14
Autores: MELLO, L. M. R. de; MACHADO, C. A. E.
Uma breve análise do panorama da vitivinicultura brasileira no ano de 2019, com ênfase na área e produção de uvas em todo o território brasileiro (dados IBGE), nos dados de elaboração e comercialização de suco de uva, vinhos, espumantes e outros derivados do estado do Rio Grande do Sul, e informações de importações, exportações e consumo per capita.
Tipo: Folhetos
Palavras-chave: Espumantes; Vinicultura; Vitivinicultura; Produção; Mercado; Comercialização; Uva; Vinho; Exportação; Viticultura; Suco; Suco de Fruta; Importação; Balança Comercial.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124189

BRS 405, BRS 406 e BRS 407: cultivares clonais femininas de araucária para produção de pinhão.
Provedor de dados: 14
Autores: WENDLING, I.
O uso tradicional da Araucaria angustifolia sempre teve foco em madeira. Porém, cada vez mais a produção de pinhões tem aparecido como uma importante atividade econômica, principalmente para pequenos e médios produtores rurais. A enxertia da araucária, tem sido apresentada como método vantajoso para a produção de mudas destinadas aos pomares de produção de pinhão.
Tipo: Folhetos
Palavras-chave: Enxertia; Cultivar; Araucária Angustifólia; Pinheiro do Paraná; Pinhão; Propagação Vegetativa; Clone.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121292

Composição bromatológica, mineral e fenólica de acessos de mangabeira.
Provedor de dados: 14
Autores: SILVA, A. V. C. da; MUNIZ, E. N.; LEDO, A. da S.; SANTANA, J. G. S.; SANTOS, P. S.
Tipo: Folhetos
Palavras-chave: Fruta Tropical; Banco de Germoplasma; Mangaba.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129417

Tendências globais para o mercado de carne bovina pós-Covid-19.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Adido agrícola; Mercado bovino.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125548

CONTROLE de ácaros do coqueiro com óleos vegetais: programa 8: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana traz como convidado o pesquisador Adenir Teodoro, da Embrapa Tabuleiros Costeiros. Ele fala sobre o controle dos ácaros dos coqueiros, utilizando óleos vegetais. Os óleos brutos vegetais, obtidos a partir de sementes de oleaginosas, podem ser usados no controle dessas pragas. Esses óleos possuem, em sua composição, ácidos graxos, que são bioativos a uma variedade de pragas. A vantagem dos óleos é que são pouco tóxicos, além de apresentar baixo risco ambiental.
Tipo: Gravações de som
Palavras-chave: Ácaro; Ácido Graxo; Óleo Vegetal; Praga; Semente; Coco.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120731

Para onde vão os dólares das exportações agropecuárias?
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/1000001000002/para-onde-vao-os-dolares-das-exportacoes-agropecuarias.html
Tipo: Artigo na mídia
Palavras-chave: Exportação agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126759

Alimentos biofortificados amenizam carências crônicas.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000987480/alimentos-biofortificados-amenizam-carencias-cronicas.html.
Tipo: Artigo na mídia
Palavras-chave: Superalimentos; Carência alimentar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122204

Tem mais soja em nosso cotidiano do que imaginamos.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000984654/tem-mais-soja-em-nosso-cotidiano-do-que-imaginamos.html.
Tipo: Artigo na mídia
Palavras-chave: Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121478

Biochar, calagem e micronutrientes no desenvolvimento de plantas de soja.
Provedor de dados: 14
Autores: SOUZA, H. A. de; SAGRILO, E.; FREITAS, R. de C. A. de; CUNHA, J. R. da; SOUSA, D. J. de A. T.; BRITO, L. R.
Objetivou-se, com o presente trabalho, avaliar a influência da aplicação de biochar associado à calagem e adição de micronutrientes sobre a nodulação, atributos agronômicos e acúmulo de nutrientes em plantas de soja. O estudo foi conduzido em casa de vegetação, na Embrapa Meio-Norte, Teresina, PI, em Latossolo que apresentava baixa fertilidade (0 - 0,20 m).
Tipo: Folhetos
Palavras-chave: Carvão Vegetal; Condicionador do Solo; Glycine Max.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125717

Desafios de comunicação para a cadeia produtiva da carne bovina brasileira.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125597

Seletividade do nicosulfuron em linhagens e híbridos de milho: fase III.
Provedor de dados: 14
Autores: OLIVEIRA, M. F. de; TRINDADE, R. dos S.
Tipo: Folhetos
Palavras-chave: Herbicida; Controle Químico; Zea Mays.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124855

NANOEMULSÃO de cera de carnaúba para evitar perda de frutos: programa 19: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana apresenta uma tecnologia importante para a conservação pós-colheita de frutos, em geral, e redução do desperdício. É a nanoemulsão de cera de carnaúba. Ao acompanhar o pesquisador Marcos David Ferreira, da Embrapa Instrumentação, o ouvinte vai saber que a conhecida cera de carnaúba agora conta com partículas ultrafinas ? chamadas nanopartículas ? capazes de preservar a qualidade e prolongar o tempo de vida dos frutos em cerca de 15 dias a mais, em comparação a outros revestimentos.
Tipo: Gravações de som
Palavras-chave: Nanoemulsão; Nanopartícula; Cera; Carnaúba; Fruto; Desperdício; Conservação; Pós-Colheita; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122764

Zoneamento agroecológico do estado de Alagoas: levantamento de reconhecimento de baixa e média intensidade dos solos do estado de Alagoas.
Provedor de dados: 14
Autores: ARAUJO FILHO, J. C. de; SANTOS, J. C. P. dos; PARAHYBA, R. da B. V.; OLIVEIRA NETO, M. B. de; BARROS, A. H. C.; MARQUES, F. A.; AMARAL, A. J. do.
Este trabalho refere-se ao levantamento de reconhecimento de baixa e média intensidade dos solos do Estado de Alagoas na escala 1:100.000, executado pela Embrapa Solos - UEP Recife, em parceria com o Governo do Estado de Alagoas. Os trabalhos do levantamento de solos foram realizados visando gerar informações básicas para dar suporte à elaboração do Zoneamento Agroecológico de Alagoas (ZAAL). O objetivo central do estudo foi gerar dados qualitativos e quantitativos para caracterização, classificação e cartografia de solos em toda superfície do Estado. Em conformidade com o objetivo, buscou-se o conhecimento dos solos e da sua variabilidade espacial levando em conta certos fatores intrínsecos aos solos assim como aqueles relativos às condições ambientais...
Tipo: Livros
Palavras-chave: Zoneamento Agrícola; Zoneamento Ecológico; Reconhecimento do Solo; Soil surveys; Zoning.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124244

MULHERES rurais: censo agro 2017.
Provedor de dados: 14
Informações técnicas; mulheres com estabelecimentos com recursos hídricos; mulheres com estabelecimentos com irrigação; estabelecimentos dirigidos por mulheres; mulheres dirigem estabelecimentos que juntos somam cerca de 30 milhões de hectares; atividade econômica das mulheres.
Tipo: Folders
Palavras-chave: Mulher Rural; Cooperativa de Produtores; Recurso Hídrico; Irrigação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122107

II. Estação Sistemas Biodiversos de Produção: 4. Espécies Anuais nos Sistemas Biodiversos.
Provedor de dados: 14
Autores: EICHOLZ, E. D.; REDISS, W. B.; GUARINO, E. de S. G.
Tipo: Parte de livro
Palavras-chave: Milho; Feijão; Sistema de Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129053

Geração tecnológica orientada à estruturação produtiva para uso sustentado das passifloras brasileiras.
Provedor de dados: 14
Autores: COSTA, A. M.; WURLITZER, N. J.; MATTOS, L. M. de; CENCI, S. A.; FALEIRO, F. G.; RINALDI, M. M.; ROSA, R. C. C.
O sucesso da introdução de novas espécies na cadeia de suprimentos é um desafio que requer o esforço coordenado da pesquisa, da assistência técnica rural, dos produtores rurais e de suas associações e cooperativas, que podem ser favorecidas pelas políticas públicas vigentes. Trata-se de um grande desafio, considerando as múltiplas áreas do conhecimento e o número de atores que necessitam ser envolvidos para que o novo produto chegue ao mercado com sustentabilidade econômica, ambiental e social. Esta publicação relatou a experiência bem sucedida do Arranjo Passiflora na geração dos conhecimentos e de tecnologias, bem como as ações conjuntas com a sociedade que viabilizaram a formação de novas cadeias de suprimentos. O documento apresentou como as equipes...
Tipo: Livros
Palavras-chave: Geração de informação; Maracujá; Cadeia Produtiva; Comercialização.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124654

Hortaliça como comprar, conservar e consumir: couve-chinesa.
Provedor de dados: 14
Autores: MATOS, M. J. L. F.; TAVARES, S. A.; SANTOS, F. F. dos; MELO, M. F.; LANA, M. M.
Couve-chinesa. Como comprar. Como conservar. Como consumir. Couve-chinesa com macarrão. Salada de couve-chinesa.
Tipo: Folders
Palavras-chave: Couve-chinesa; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125872

Planilha para o manejo simplificado da irrigação do milho para produção de grãos.
Provedor de dados: 14
Autores: ALBUQUERQUE, P. E. P. de; GUIMARAES, D. P.
Esta publicação objetiva apresentar uma planilha eletrônica que fornece de forma simplificada o turno de rega e a respectiva lâmina de irrigação em quatro fases do ciclo da cultura do milho, em função da entrada de poucas características de clima, de solo e da cultura em si. Adicionalmente, um calendário de irrigação é apresentado, de acordo com a data de plantio, onde também se pode incluir a precipitação pluviométrica medida diariamente. O trabalho atende ao Objetivo de Desenvolvimento Sustentável (ODS) no 12 "Consumo e Produção Responsáveis", tendo em vista que boas práticas de produção, mais especificamente o manejo de irrigação correto, são fatores primordiais para uma produção sustentável, com menor impacto ao meio ambiente, o que favorece também a...
Tipo: Folhetos
Palavras-chave: Objetivo de desenvolvimento sustentável; Sustentabilidade; Selo ODS 12; Agenda 2030; Zea Mays; Irrigação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123922

Meliponíneos podem ser utilizados para serviços de polinização em erva-mate?: prospecção de espécies e referencial teórico.
Provedor de dados: 14
Autores: SCHUHLI, G. S. e; KRUG, C.; LONGHI-SANTOS, T.; GONÇALVES, R. B.
Diversas espécies de insetos visitam as inflorescências de erva-mate e influenciam o fluxo gênico das suas populações. Os himenópteros (principalmente abelhas) são o terceiro grupo de maior visitação nas flores, estando após os coleópteros e dípteros (Pires et al., 2014).
Tipo: Folhetos
Palavras-chave: Erva mate; Ilex Paraguariensis; Abelha; Polinização.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124136

Biocarnes: uma solução de futuro?
Provedor de dados: 14
Autores: FEDDERN, V.; ESTEVES, P. A.; SANDI, A. J.; BASSI, N. S. S.
Tipo: Artigo na mídia
Palavras-chave: Biocarne; Carne de laboratório; Proteína Vegetal; Produção de Carne; Inovação; Biotecnologia; Tecnologia de Alimento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125672

Pesquisa e desenvolvimento para a cultura da goiabeira: a contribuição da Embrapa Semiárido.
Provedor de dados: 14
Autores: CASTRO, J. M. da C. e; RIBEIRO, J. M.
A goiabeira (Psidium guajava L.) é de fundamental importância econômica para o Semiárido brasileiro, principalmente, para os pequenos produtores. Por este motivo, a Embrapa Semiárido sempre dispensou muitos esforços de pesquisa com a cultura. Poucos anos depois da instalação da Embrapa Semiárido em Petrolina, PE, a goiabeira já foi avaliada e considerada promissora para cultivo em diversos locais do Nordeste do Brasil (Nunes et al., 1978). Com os primeiros plantios em condição de sequeiro, as pesquisas conduzidas levaram a cultura a uma posição de destaque na fruticultura irrigada dos dias atuais, conforme será apresentado ao longo deste documento. Numa revisão sobre os trabalhos desenvolvidos há cerca de 30 anos, o leitor poderá encontrar, de forma fácil...
Tipo: Livros
Palavras-chave: Goiabeira; Cultivar; Goiaba; Psidium Guajava; Propagação Vegetativa; Comportamento de Variedade; Guavas; Cultivar identification; Cultivars.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128050

Germinação e vigor de sementes de Passiflora setacea D.C. armazenadas em duas condições ambientais.
Provedor de dados: 14
Autores: JOSE, S. C. B. R.; MELO, C. C. de; PADUA, J. G.; SALOMAO, A. N.; CARVALHO, R. V. de.
Estudos relacionados às melhores condições de armazenamento devem ser realizados para garantir a comercialização de sementes de qualidade. Os objetivos desta pesquisa foram avaliar a qualidade fisiológica das sementes de P. setacea cultivar ?BRS Pérola do Cerrado?, armazenadas com diferentes umidades e condições ambientais, assim como verificar o efeito do armazenamento sobre a dormência das mesmas. As sementes foram submetidas à secagem em sílica gel até conteúdos de água de 7%, 4,1%, 3,6% e 3,0%, além do controle, sementes sem secagem, com 11,5% de conteúdo de água. As sementes foram acondicionadas em embalagem impermeável e armazenadas em câmara climatizada (-20ºC) e em ambiente de laboratório. Após 14 meses de armazenamento foram realizados testes de...
Tipo: Folhetos
Palavras-chave: Maracujá silvestre; Qualidade fisiológica; Armazenamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121884

PORTFÓLIO de mudanças climáticas: ciência para a adaptação e sustentabilidade da agricultura brasileira.
Provedor de dados: 14
Boas práticas. Pesquisa, desenvolvimento e inovação.
Tipo: Folders
Palavras-chave: Mudanças climáticas; Agricultura; Mudança Climática; Climate change; Agriculture.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133597

Transformação digital no apoio à produção agroalimentar em tempos de coronavírus.
Provedor de dados: 14
Autores: BOLFE, E. L.
Para Édson Bolfe, pesquisador da Embrapa Informática Agropecuária, tecnologia é aliada para garantir qualidade e abastecimento.
Tipo: Artigo na mídia
Palavras-chave: Agricultura brasileira; Safra de grãos; Transformação digital; Agricultura; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121723

Propagação in vitro de Echinocactus grusonii.
Provedor de dados: 14
Autores: CORREIA, D.; BERNARDO, J. C.
Echinocactus grusonii, conhecido como ?Cactus cadeira-desogra?, é uma espécie endêmica da região central do México que se encontra ameaçada de extinção. Possui ocorrência em locais semidesérticos, apresenta potencial ornamental e os frutos são utilizados na alimentação humana. A reprodução ocorre exclusivamente por ementes, como na maioria dos cactos globulares. Assim, a micropropagação torna-se uma ferramenta importante na produção de mudas e conservação da espécie. O objetivo do estudo foi avaliar a germinação, o crescimento de plântulas in vitro e a micropropagação de E. grusonii. Echinocactus grusonii, known as ?mother-in-law cactus chair?, is an endemic species in central Mexico and endangered. Occurs in semidesert locations. It has a high ornamental...
Tipo: Folhetos
Palavras-chave: Echinocactus grusonii; Cacto cadeira-de-sogra; Multiplicação; Aclimatização; Golden ball cactus; Multiplication; Acclimatization.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125421

Avaliação físico-química e compostos bioativos de farinhas de batatas-doces de polpa roxa.
Provedor de dados: 14
Autores: PILON, L.; WARTHA, C. C.; ROSSETTO, L. M.; SOUZA, D. G. de; MELO, R. A. de C. e; VENDRAME, L. P. de C.
O objetivo desse estudo foi avaliar a qualidade físico-química, os teores de antocianinas totais e os compostos fenólicos totais de farinhas obtidas a partir de seis genótipos de batatas-doces de polpa roxa, produzidos na Embrapa Hortaliças, comparando os métodos de secagem em estufa e liofilização.
Tipo: Folhetos
Palavras-chave: Ipomoea Batatas; Batata Doce Roxa; Antocianina.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121613

Challenges and solutions to fight climate change.
Provedor de dados: 14
Autores: CUADRA, S. V.; HEINEMANN, A. B.; MADARI, B. E.; OLIVEIRA, A. F. de; SANTOS, P. M.; OLIVEIRA, P. P. A.; KEMENES, A.; MOZZER, G. B.; BARIONI, L. G.
Introduction. Embrapa. Advances and challenges. Final considerations
Tipo: Parte de livro
Palavras-chave: Agricultura brasileira; Mudanças climáticas; Agricultura; Climate change; Agriculture.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127977

Desempenho genotípico para produtividade de tubérculos de genótipos de batata em Canoinhas-SC.
Provedor de dados: 14
Autores: SILVA, G. O. da; CARVALHO, A. D. F. de; PEREIRA, A. da S.; BORTOLETTO, A. C.; HIRANO, E.; AZEVEDO, F. Q.
O objetivo deste trabalho foi realizar a seleção simultânea quanto à produtividade, adaptabilidade e estabilidade da produção de tubérculos de genótipos de batata em Canoinhas-SC.
Tipo: Folhetos
Palavras-chave: Solanum Tuberosum; Interação Genética; Seleção Genótipa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125278

Banco ativo de germoplasma de forrageiras de importância para o Pantanal : Embrapa Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.
(Embrapa Recursos Genéticos e Biotecnologia. Documentos, 371).
Tipo: Parte de livro
Palavras-chave: Grama-do-cerrado; Gramínea Forrageira; Forage grasses.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811821

Boas práticas agropecuárias e na produção artesanal de queijos para acessibilidade ao selo arte por agricultores familiares.
Provedor de dados: 14
Autores: SA, C. O. de; DANTAS, T. V. M.; OLIVEIRA, A. A. de; SA, J. L. de.
Tipo: Folhetos
Palavras-chave: Queijo; Agricultura Familiar; Produção; Produção de Alimentos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129427

Avaliação da produtividade de cultivares de feijão-caupi para cultivo no estado do Pará.
Provedor de dados: 14
Autores: RODRIGUES, J. E. L. F.; FREIRE FILHO, F. R.; ARAUJO, S. M. B.; AZEVEDO, R. de; EL-HUSNY, J. C.; RODRIGUES, M. C. S. F.; OLIVEIRA, R. P. de; MIRANDA JUNIOR, J. P.; CALZAVARA, B. B.
O feijão-caupi [Vigna unguiculata (L.) Walp.] constitui uma importante alternativa comercial para pequenos, médios e grandes produtores, além de ser um componente importante para a segurança alimentar do pequeno produtor rural e das populações de baixa renda. As informações disponíveis no sistema de produção, aliadas ao potencial genético de novas cultivares, surgem como uma alternativa capaz de aumentar a produtividade dessa cultura. Este trabalho teve como objetivo avaliar, em seis municípios, a produtividade de seis cultivares de feijão-caupi provenientes do Programa de Melhoramento da Embrapa. Os trabalhos foram conduzidos nos municípios de Curuçá, Bragança, Belém, Paragominas, Acará e São Domingos do Araguaia, utilizando as cultivares BR-3 Tracuateua,...
Tipo: Folhetos
Palavras-chave: Feijão; Vigna Unguiculata; Produção; Meio Ambiente.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118414

BRS SCS Nina.
Provedor de dados: 14
Cultivar de nectarineira produtora de frutas de polpa branca, doce e maturação precoce
Tipo: Folders
Palavras-chave: Cultivar BRS SCS Nina; BRS SCS Nina; Nectarina.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133696

Secagem natural de plantas medicinais.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuária dos Tabuleiros Costeiros.
Responsáveis: Luciana Marques de Carvalho; Francieli da Silva; Renata da Silva Bonfim Gomes; Karina Neoob de Carvalho Castro.
Tipo: Folders
Palavras-chave: Secagem; Planta Medicinal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129394

Criopreservação por vitrificação em gotas de plúmulas de embriões zigóticos de coqueiro anão verde do Brasil de Jiqui.
Provedor de dados: 14
Autores: LEDO, A. da S.; SANTANA, F. V.; OLIVEIRA, A. C. A. de; MACHADO, C. de A.; SILVA, A. V. C. da; RAMOS, S. R. R.
Tipo: Folhetos
Palavras-chave: Coco; Genética Vegetal; Germoplasma; Banco de Germoplasma; Criopreservação; Coconuts; Germplasm; Germplasm conservation.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128149

Eficiência agronômica de bactérias endofíticas diazotróficas para a fixação de nitrogênio e promoção do crescimento de arroz irrigado cultivado em terras baixas.
Provedor de dados: 14
Autores: MATTOS, M. L. T.; SCIVITTARO, W. B.; VALGAS, R. A.; MELO, I. S. de; HUNGRIA, M.
Tipo: Folhetos
Palavras-chave: Arroz; Arroz Inundado; Arroz Irrigado; Fertilizante; Fertilizante Nitrogenado; Adubação; Fixação de Nitrogênio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127215

PLANEJAMENTO forrageiro.
Provedor de dados: 14
Considerações gerais sobre manejo das forrageiras. Inclui tabela por cultura e por cultivar.
Tipo: Folders
Palavras-chave: Cultivar; Forragem; Pastagem; Forragicultura; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129826

Tolerância relativa de doze híbridos interespecíficos de Brachiaria spp. ao alagamento do solo.
Provedor de dados: 14
Autores: DIAS FILHO, M. B.; CRUZ, E. D.; LOPES, M. J. dos S.; BARRIOS, S. C. L.; VALLE, C. B. do.
O comportamento de 12 híbridos interespecíficos de Brachiaria brizantha x Brachiaria decumbens x Brachiaria ruziziensis (74-10, 141-10, 392-10, 422-10, 628-10, 798-10, 970-10, 992-10, 1115-10, 1130-10, 1242-10, 27-11) sob excesso de água no solo foi comparado, durante 20 dias, em plantas cultivadas em vasos, sob alagamento, ou em solo, bem drenado. Utilizou-se as cultivares comerciais B. brizantha "Xaraés" e B. decumbens "Basilisk", relativamente menos suscetíveis ao alagamento do solo, e a cultivar Marandu de B. brizantha, reconhecidamente intolerante a esse estresse, como testemunhas. O objetivo foi classificar esses genótipos quanto à tolerância relativa ao alagamento do solo. Sob alagamento, a redução percentual média na taxa de alongamento foliar foi...
Tipo: Folhetos
Palavras-chave: Hipóxia; Brachiaria; Gramínea Forrageira; Solo Inundado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127443

Clones de seringueira selecionados para cultivo no estado de Goiás e no Distrito Federal.
Provedor de dados: 14
Autores: PEREIRA, A. V.; FIALHO, J. de F.; PEREIRA, E. B. C.; JUNQUEIRA, N. T. V.; MARTINS, M. A.; MATTOSO, L. H. C.; LIMA, W. A. A. de; DIANESE, A. de C.; ALVES, R. T.; VEIGA, A. D.; FALEIRO, F. G.; CONCEIÇÃO, L. D. H. C. S. DA; BRAGA, M. F.; MALAQUIAS, J. V.
O estado de Goiás e o Distrito Federal apresentam áreas com diferentes condições de clima e solo favoráveis ao cultivo da seringueira [Hevea brasiliensis (Wild. ex Adr. de Juss.) Müell. Arg.], que representa uma opção para diversificação do agronegócio regional. A heveicultura em Goiás ultrapassa 20 mil hectares, distribuídos em 71 municípios, e está concentrada (48%) nos municípios de Barro Alto, Goianésia, Vila Propício e Santa Rita do Novo Destino, estando a maioria dos plantios ainda em fase de crescimento e formação (Reis et al., 2017). No ano de 2018, o estado de Goiás foi o terceiro maior produtor nacional de borracha natural com a produção de 20.796 t de látex coagulado, colhida em 7.465 ha, equivalente a 2,8 t ha-1 de coágulo ou 1,7 t ha-1 de...
Tipo: Folhetos
Palavras-chave: Goias; Seringueira; Borracha; Borracha Brasileira; Borracha Hevea; Clone.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127458

Monitoramento de desembarques pesqueiros na Bacia Tocantins-Araguaia: Apinajés, São João do Araguaia, PA.
Provedor de dados: 14
Este boletim objetiva avaliar as pescarias na comunidade de Apinagés, localizada próximo ao encontro dos rios Tocantins e Araguaia, no município de São João do Araguaia, PA, na primeira metade da temporada de pesca de 2020.
Tipo: Folhetos
Palavras-chave: Cadeia Produtiva; Desembarque; Desenvolvimento Sustentável; Pesca Artesanal; Pescador; Projeto Pesqueiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125500

Consumo de pesticidas no Brasil.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000980493/consumo-de-pesticidas-no-brasil.html.
Tipo: Artigo na mídia
Palavras-chave: Sanidade vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129608

COMO iniciar um criatório comercial de caititu ou cateto: programa 11: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre como o produtor pode iniciar um criatório comercial de caititu, também conhecido como cateto, em todas as regiões do País. Ao acompanhar a pesquisadora Natália Inagaki de Albuquerque, da Embrapa Amazônia Oriental, o ouvinte vai conhecer as características desse animal silvestre da fauna brasileira, relacionadas, entre outras, à alimentação, sanidade e reprodução. O programa também aborda a legislação pertinente para a criação de animais silvestres
Tipo: Gravações de som
Palavras-chave: Animal Selvagem; Legislação; Produtor; Queixada; Criação em Cativeiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121507

INDICADORES: LEITE E DERIVADOS, v. 11, n. 98, 2020.
Provedor de dados: 14
Autores: CARVALHO, G. R.; ROCHA, D. T. da; CARNEIRO, A. V.
O preço bruto do leite ao produtor em dezembro ficou praticamente estável em relação a novembro de 2019, fechando a R$1,45/litro, variação de apenas 0,1%. Na comparação anual, 2019 terminou com preço R$0,11 maior em relação a dezembro de 2018, alta de 8,25%. Apesar da manutenção no preço recebido pelo leite, o produtor sofreu com os aumentos nos preços dos grãos que comprometeram mais uma vez a relação de troca leite/mistura. Em dezembro foram necessários mais de 41 litros de leite para aquisição de uma saca de 60 kg de mistura (70% milho e 30% farelo de soja), alta de 5,9% no mês. Em relação a dezembro de 2018, a relação de troca piorou 9,2%, tendo em vista que naquele mês eram necessários 37,75 litros de leite para aquisição dessa mesma saca. No varejo,...
Tipo: Folhetos
Palavras-chave: Leite cru; Leite resfriado; Captação de leite.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118612

Informações técnicas para o cultivo do milho e sorgo na região subtropical do Brasil: safras 2019/20 e 2020/21.
Provedor de dados: 14
As informações técnicas descritas nesta publicação, objetivam subsidiar o cultivo de milho e de sorgo no Rio Grande do Sul, Santa Catarina e sul do Paraná nas safras 2019/2020 e 2020/2021.
Tipo: Livros
Palavras-chave: Milho; Sorgo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126468

A produção da família Alves de Sousa aliada à recuperação do solo: Centro do Bertolino, Lago do Junco, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas prática; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122851

VARIEDADES registradas de plátanos ao alcance do produtor: programa 28: Norte.
Provedor de dados: 14
Os plátanos são o tema do Prosa Rural desta semana. A Embrapa registrou, recentemente, dois plátanos, também conhecidos como banana-da-terra, que já eram de domínio público. Isso foi feito porque, não estando registradas, as mudas não podiam ser comercializadas de forma oficial pelas biofábricas brasileiras. A inclusão das variedades D?Angola e Terra Maranhão no Registro Nacional de Cultivares (RNC) do Ministério de Agricultura, Pecuária e Abastecimento (Mapa), permitirá a produção e a identificação de matrizes livres de vírus, bem como o acesso dos produtores aos sistemas oficiais de crédito rural. Participa do programa o pesquisador Edson Perito Amorim.
Tipo: Gravações de som
Palavras-chave: Plátano; Banana da Terra; Muda; Crédito Rural; Matriz; Produtor; Variedade; Plateaus; Farm Credit System.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124122

Boletim Agrometeorológico: início da 1ª safra 2020/2021 em Mato Grosso.
Provedor de dados: 14
Autores: LULU, J.; ZOLIN, C. A.
O presente boletim agrometeorológico tem por objetivo fornecer informações relevantes e consolidadas para dar suporte ao setor produtivo de Mato Grosso no sentido do acompanhamento das condições de chuva e déficit hídrico nas regiões produtoras do estado. Importante destacar que, considerando a escala de análise e dado o fator de variabilidade das precipitações e condições de seca, é necessário cautela na interpretação das informações aqui apresentadas. As informações deste boletim são fundamentadas em fontes de dados da Embrapa (Agritempo), CPTEC/INPE (Centro de Previsão de Tempo e Estudos Climáticos) e do INMET (Instituto Nacional de Meteorologia).
Tipo: Folhetos
Palavras-chave: Agritempo; Dados climaticos; Meteorologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126649

Inserção de crotalárias em sistemas de produção de grãos e renovação de pastagens.
Provedor de dados: 14
Autores: GARCIA, R. A.; CECCON, G.; MACHADO, L. A. Z.
Tipo: Folhetos
Palavras-chave: Crotalária; Gramínea; Leguminosa Forrageira; Rotação de Cultura; Grain crops; Pastures; Soil.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129490

Tutorial para análise funcional a partir de estudos de associação genômica ampla e transcriptômicos utilizando o banco de dados MeSH (Medical Subject Headings) no programa R.
Provedor de dados: 14
Autores: SOLLERO, B. P.; GRYNBERG, P.
Acessando recursos de anotações; MeSH
Tipo: Folhetos
Palavras-chave: Associação genômica ampla; Transcriptoma; Programa de Computador; Genótipo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125820

USO DE fertilizante biológico para aumentar aproveitamento do fósforo: programa 17: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o uso de um fertilizante biológico, inédito no País, que aumenta o aproveitamento do fósforo. Trata-se do BiomaPhos, um inoculante biológico, totalmente desenvolvido a partir de tecnologia nacional, por meio de uma parceria público-privada entre a Embrapa e a empresa Bioma. A pesquisadora Christiane Paiva, da Embrapa Milho e Sorgo, traz detalhes sobre esse inoculante, que alia sustentabilidade e produtividade. O ouvinte vai saber ainda que esse produto pode mudar o quadro da alta dependência brasileira do mercado internacional de fertilizantes.
Tipo: Gravações de som
Palavras-chave: Fertilizante; Fósforo; Inoculante; Produtividade; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122021

Efeitos do uso da terra sobre a hidrobiogeoquímica de microbacias de cabeceira na bacia do rio Jaguari - Minas Gerais.
Provedor de dados: 14
Autores: FIGUEIREDO, R. de O.; SILVA, G. B. S. da; PAZIANOTTO, R. A. A.; ZUCCARI, M. L.; COSTA, C. F. G. da; CAMARGO, P. B. de; PICCOLO, M. de C.; REIS, L. dE C.
Resumo: A caracterização da hidrobiogeoquímica de três cursos d?água foi realizada em microbacias de cabeceira de baixa ordem, relacionando-se com as mudanças de uso da terra, para apoiar a gestão e uso sustentável dos recursos hídricos da bacia do rio Jaguari, no sul do estado de Minas Gerais. A avaliação realizada constatou impactos nas águas fluviais decorrentes da mudança da cobertura florestal original. As pastagens ocasionaram aumento nas concentrações de íons maiores, carbono dissolvido e sedimentos, enquanto a agricultura, e em menor escala a silvicultura, promoveram aumento de nutrientes como o nitrogênio. A recuperação florestal iniciada ainda não reflete, de forma clara, melhoria nas águas fluviais, uma vez que os pastos predominam na paisagem....
Tipo: Folhetos
Palavras-chave: Microbacia; Carbono; Floresta; Silvicultura; Pastagem; Uso da Terra; Impacto Ambiental; Qualidade da Água; Watersheds; Riparian forests; Pastures; Forestry; Environmental impact; Water quality.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126533

USO de dietas quentes para acelerar engorda de bovinos e reduzir pegada de Carbono: programa 34: Norte.
Provedor de dados: 14
Esta semana, o Prosa Rural fala sobre o uso de dietas quentes para acelerar a engorda de bovinos e reduzir a pegada de carbono no ambiente. As dietas quentes são consideradas eficientes porque fazem com que o animal acelere a deposição de gordura, chegando ao peso ideal de maneira rápida. São dietas que contêm alta porcentagem de concentrado e menor quantidade de fibras - no caso, a pastagem. No programa desta semana, o pesquisador da Embrapa Pecuária Sudeste, Sérgio Raposo, explica com detalhes o que são as dietas quentes e como podem ser usadas de maneira adequada para melhorar o ganho de peso do rebanho bovino.
Tipo: Gravações de som
Palavras-chave: Bovino; Dieta; Engorda; Carbono; Ganho de Peso.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124758

Maracujazeiro.
Provedor de dados: 14
Autores: BRASIL, E. C.; CARVALHO, J. E. U. de; DOHARA, R. H.
Tipo: Parte de livro
Palavras-chave: Maracujá.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127330

Impactos da Covid-19 na bananicultura brasileira
Provedor de dados: 14
Autores: GERUM, A. F. A. de A.; SANTANA, M. do A.; ROCHA, S. L.
Tipo: Folhetos
Palavras-chave: Banana; Economia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125406

Hortaliça como comprar, conservar e consumir: mandioquinha-salsa.
Provedor de dados: 14
Autores: SANTOS, F. F. dos; MATOS, M. J. L. F.; TAVARES, S. A.; MELO, M. F. de; LANA, M. M.
Mandioquinha-salsa. Como comprar. Como conservar. Como consumir. Bom-bocado de mandioquinha-salsa. Nhoque de mandioquinha-salsa.
Tipo: Folders
Palavras-chave: Mandioquinha Salsa; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125899

Parapará (Jacaranda copaia Aublet D.Don).
Provedor de dados: 14
Autores: FALESI, I. C.; BITTENCOURT, I. C. F. P. de M.; BRASIL, E. C.
Tipo: Parte de livro
Palavras-chave: Parapará; Jacaranda copaia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127336

Quintais Sustentáveis: alternativa para a segurança alimentar e nutricional de famílias de baixa renda na perspectiva da agricultura periurbana de Boa Vista, RR.
Provedor de dados: 14
Autores: PORTO, R. G.
O Projeto Quintais Sustentáveis nasceu da interlocução com as demandas da sociedade no estado de Roraima por profissionais ligados ao tema do rural e agrário, especialmente, no que tange a projetos sociais, ainda que técnico produtivos, mas que foca em linhas de atuação de projetos sociais que tenham a perspectiva de desenvolvimento local da agricultura familiar a partir dos atores e potencialidades locais.
Tipo: Livros
Palavras-chave: Agroecologia; Agricultura Familiar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132602

Desempenho agronômico de hídridos e variedades de milho em diferentes épocas e espaçamentos: opções de plantio para a Região Sul.
Provedor de dados: 14
Autores: MACHADO, J. R. de A.; GUIMARAES, L. J. M.; GUIMARAES, P. E. de O.; TRINDADE, R. dos S.
O trabalho foi desenvolvido na área experimental da Embrapa Trigo, na safra 2017/2018, na forma de Unidades de Observação (UOs), com o objetivo de avaliar híbridos e variedades experimentais e comerciais em dois espaçamentos entre linhas e duas épocas de semeadura. As UOs foram implantadas em espaçamento de 80 cm e 45 cm, em duas épocas de semeadura, sendo a primeira em 19/09/2017 (semeadura do cedo) e a segunda em 24/10/2017 (semeadura do tarde) com colheita realizada, respectivamente, em 28/03/2018 e 25/04/2018. Foram considerados neste trabalho dados de produtividade de grãos (Kg ha-1). Por se tratarem de parcelas maiores, não houve repetição por tratamento, pois a intenção foi simular ao cultivo em área de agricultor. Observou-se que os híbridos...
Tipo: Folhetos
Palavras-chave: Zea Mays; Rendimento; Grão; Produtividade; Crops; Grain yield.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124593

Farelo de mamona industrialmente destoxificado na alimentação de ovinos.
Provedor de dados: 14
Autores: POMPEU, R. C. F. F.; ROCHA, A. C.; CÂNDIDO, M. J. D.; SALLES, H. O.; SEVERINO, L. S.; ROGERIO, M. C. P.; GUEDES, L. F.; ALVES, F. G. da S.; FREITAS, J. W. L.
Resumo: Objetivou-se com o presente estudo avaliar o consumo, desempenho, e 25parâmetros sanguíneos de ovinos alimentados com farelo de mamona industrialmente 26destoxificado como fonte alternativa de proteína. O experimento foi conduzido no Núcleo 27de Ensino e Estudos em Forragicultura do Departamento de Zootecnia da Universidade 28Federal do Ceará ?NEEF/DZ//UFC, localizado em Fortaleza ?CE. O período 29experimental teve duração de 77 dias, comperíodo de adaptação dos animais às dietas e 30ao ambiente experimental foi de 14 dias. Foram utilizados 24 machos não castrados, com 3118 kg ± 2,23 de peso corporal e aproximadamente sete meses de idade, sendo 12 ovinos 32da raça Morada Nova e 12 ovinos da raça Santa Inês. Os animais foram distribuídos em 33um...
Tipo: Folhetos
Palavras-chave: Raça Morada Nova; Raça Santa Inês; Ricinus Communis; Ovino; Nutrição Animal; Subproduto; Alimento Alternativo; Sheep feeding; Ruminant nutrition; Byproducts; Brazil.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128169

ÓLEO essencial de Pimenta-de-Macaco, Piper aduncum L. (Piperaceae), como inseticida botânico.
Provedor de dados: 14
A pimenta-de-macaco, Piper aduncum L. (Piperaceae), é uma planta muito encontrada na Amazônia. Estudos desenvolvidos pela Embrapa Acre, a partir de plantas selecionadas no Banco Ativo de Germoplasma, apontaram que o óleo essencial da pimenta-de-macaco apresenta um ótimo potencial como inseticida botânico.
Tipo: Folders
Palavras-chave: Plagas de plantas; Insecticidas botánicos; Aceites esenciales; Dilapiol; Adopción de innovaciones; Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Praga de Planta; Inseticida de Origem Vegetal; Pimenta de Macaco; Óleo Essencial; Adoção de Inovações; Transferência de Tecnologia; Plant pests; Piper aduncum; Botanical insecticides; Essential oils; Innovation adoption; Technology transfer.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124179

Cultivo do milho-verde irrigado na Baixada Maranhense.
Provedor de dados: 14
A cultura do milho-verde e sua importância socioeconômica; Características ambientais da Baixada Maranhense; Preparo e manejo do solo e adubação; Limpeza da área e/ou derrubada da palhada de arroz Amostragem do solo; Correção do solo; Nutrição e adubação; Cultivares de milho-verde e suas características agronômicas; Características de espigas e grãos; Cultivares; Plantio; Manejo de irrigação; Necessidade hídrica; Momento da irrigação; Métodos e sistemas de irrigação; Seleção do método e sistema de irrigação; Manejo e controle de plantas invasoras; Controle preventivo; Condução cultural; Controle mecânico; Controle químico; Controle de plantas invasoras na cultura do milho-verde em Arari, Maranhão; Pragas: Identificação, manejo e controle; Pragas iniciais...
Tipo: Livros
Palavras-chave: Milho; Manejo do Solo; Irrigação; Controle Integrado; Erva Daninha; Colheita; Armazenamento; Comercialização; Zea Mays.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132153

Colheita mecanizada do feijoeiro: passado, presente e futuro.
Provedor de dados: 14
Autores: SILVA, J. G. da; NASCENTE, A. S.; MACHADO, A. L. T.
No cultivo do feijão-comum, verifica-se também, incrementos na adoção de práticas de agricultura de precisão, de gestão automatizada de equipamentos de irrigação e máquinas agrícolas e o emprego de equipamentos que auxiliam na manutenção da sustentabilidade dos solos, na racionalização do uso de defensivos e na redução de perdas de grãos na operação de colheita. Entretanto, apesar dos grandes avanços tecnológicos na cultura do feijão-comum e a disponibilização aos agricultores de máquinas colhedoras de elevadas performances, a perda de grãos na operação de colheita ainda continua excessiva, tornando-se comum verificar perda de grãos superiores a 300 kg ha-1. A arquitetura inadequada das plantas de algumas cultivares, com muitas vagens posicionadas perto do...
Tipo: Folhetos
Palavras-chave: Feijão; Phaseolus Vulgaris; Colheita Mecânica; Mecanização Agrícola; Beans; Mechanization; Agricultural machinery and equipment.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127024

Moko da bananeira: sintomas e medidas preventivas.
Provedor de dados: 14
Autores: SCHURT, D. A.; PELZER, G. Q.; BARBOSA, R. N. T.; SOUZA, G. R. de.
Sintomas. Disseminação e controle da doença. Manejo preventivo da doença. Legislação vigente.
Tipo: Folders
Palavras-chave: Banana; Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123242

Alcimar e Maria de Fátima e a tradicional prática da roça no toco: Vila Nova, São Luís Gonzaga do Maranhão, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; GUSMÃO, L. A.; SOUSA, R. C. de; PIRATOBA, D. N. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122809

Interação micorriza e rizobactérias no desenvolvimento radicular e no gradiente de elongação da folha de milho.
Provedor de dados: 14
Autores: OLIVEIRA, N. A. M. de; SOUZA, I. R. P. de; ALMEIDA, M. A.; SOUZA, F. A. de; MARRIEL, I. E.; LANA, U. G. de P.; OLIVEIRA, A. C. de; ANDRADE, C. de L. T. de.
Os investimentos em pesquisas que possibilitam o uso de recursos biológicos na agricultura contribuem para uma produção mais sustentável e economicamente viável. O presente estudo teve como objetivo avaliar o efeito da interação entre espécies de rizobactérias do gênero Bacillus e fungo micorrízico arbuscular (FMA) Rhizoglomus clarum CNPMS05 no gradiente de desenvolvimento da folha e na biomassa e morfologia da raiz de plântulas de milho (Zea mays L.). O experimento foi conduzido em casa de vegetação na Embrapa Milho e Sorgo, Sete Lagoas-MG, em 2019. Foram analisados em plântulas de milho, com três folhas totalmente desenvolvidas, o comprimento e a largura de células epidermais na região do gradiente de desenvolvimento da folha, a largura da folha, os...
Tipo: Folhetos
Palavras-chave: Morfologia radicular; Fungo micorrízico arbuscular; Micorriza; Bactéria; Fungo; Raiz; Plântula.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126614

Embrapa Uva e Vinho - Há 45 anos apoiando o desenvolvimento da vitivinicultura e da fruticultura de clima temperado brasileiro.
Provedor de dados: 14
Autores: FIALHO, V. M. Z. B.
No dia 26 de agosto, a Embrapa Uva e Vinho, uma das 45 unidades descentralizadas da Empresa Brasileira de Pesquisa Agropecuária, completa 45 anos. Com o objetivo inicial de desenvolver atividades de Pesquisa e Desenvolvimento para a vitivinicultura gaúcha, na condição de Unidade de Pesquisa Estadual, a partir de 1984, já na condição de Centro Nacional de Pesquisa de Uva e Vinho (CNPUV), expandiu sua missão à vitivinicultura nacional.
Tipo: Artigo na mídia
Palavras-chave: Vitivinicultura; Brasileira; Fruticultura; Clima Temperado; Fruta de Clima Temperado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124844

DR. FEIJÃO: aplicativo que facilita a vida do produtor: programa 2: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana apresenta o Doutor Feijão, aplicativo que aproxima os produtores das soluções tecnológicas, desenvolvidas pela Embrapa para o sistema produtivo do feijão comum. O analista Aluísio Goulart, da Embrapa Arroz e Feijão, conta que essa ferramenta auxilia técnicos e agricultores, trazendo informações sobre o desenvolvimento da planta e o manejo e pragas e doenças, entre outras. Também disponibiliza publicações, identifica parceiros para aquisição de sementes, e o põe o produtor em contato direto com a Embrapa.
Tipo: Gravações de som
Palavras-chave: Sistema produtivo; Feijão; Agricultor; Praga de Planta; Doença de Planta; Semente; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119508

Conservation of ecosystems and water supply.
Provedor de dados: 14
Autores: PRADO, R. B.; MONTEIRO, J. M. G.; BARROS, L. C. de; PARRON, L. M.; SILVA, M. S. G. M. e; RIBEIRO, P. E. de A.; FIGUEIREDO, R. de O.
This chapter presents an overview of anthropogenic pressures on water resources and their ecosystems, some strategies for conserving these resources for water production, as well as a picture of Embrapa's actions with the potential to contribute to the achievement of the target 6.6 of the SDG 6: protect and restore water-related ecosystems, including mountains, forests, wetlands, rivers, aquifers and lakes by 2020. The technological solutions that Embrapa research has generated are related to the reduction of the erosive processes and the sedimentation of the water bodies; planning, monitoring and valuation of ecosystem services, with emphasis on water resources; to conservation practices with consequences for maintaining the quantity and quality of water,...
Tipo: Parte de livro
Palavras-chave: Manejo de Água; Recurso Hídrico; Ecossistema; Water management; Water resources; Ecosystems.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131137

Custo médio da irrigação localizada no cultivo de palma de óleo no cerrado.
Provedor de dados: 14
Autores: ANTONINI, J. C. dos A.; OLIVEIRA, A. D. de; KINPARA, D. I.
Resumo ? No Brasil, estudos sobre os custos do cultivo de palma de óleo com o uso de irrigação suplementar são inexistentes. Nesse contexto, este trabalho teve como objetivo quantificar esses custos, a partir do uso da tecnologia de irrigação e, por meio da simulação do primeiro ao quinto ano de desenvolvimento da cultura, após o plantio definitivo, nas condições do Cerrado. Para análise dos custos com irrigação, foi simulado um pomar de palma de óleo (cultivar BRS C2501) com 1.935 plantas, ocupando uma área de 10,81 ha, localizada na Embrapa Cerrados, DF (15º35?30? S, 47º42?30? W e altitude de 1.030 m). O arranjo de plantio foi em triângulo equilátero, resultando num espaçamento de 6,93 m entre linhas e 8 m entre plantas com densidade de plantio de 179...
Tipo: Folhetos
Palavras-chave: Elaeis guineenses; Irrigação; Custo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130643

Armazenamento, conteúdo de água e reguladores de crescimento na conservação e na superação da dormência de sementes de Passiflora mucronata Lam.
Provedor de dados: 14
Autores: JUNGHANS, T. G.
Passiflora mucronata, também conhecida como maracujáde-restinga, está entre as 150 espécies de passifloras nativas do Brasil e ocorre em ambientes de restinga da Bahia até o litoral norte de São Paulo. Assim, como outras passifloras silvestres, essa espécie possui resistência à bacteriose, antracnose e fusariose, e apresenta potencial ornamental. Neste trabalho, avaliaram-se o conteúdo de água das sementes, o períodode armazenamento e o uso de GA4+7 + BA na conservação e na superação da dormência de sementes de P. mucronata. Foram realizados cinco experimentos com quatro repetições e 25 sementes por parcela em cada um. O delineamento experimental foi inteiramente casualizado para as sementes recém-colhidas e para sementes armazenadas por dois anos, e...
Tipo: Folhetos
Palavras-chave: Maracujá; Passion fruits.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124552

A tradição da família de dona Belinha no cultivo do feijão abafado: Povoado do Lago do Sigismundo, Esperantinópolis, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; BIAGINI, Y. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122790

Setembro de 2020 teve temperaturas recordes e poucas chuvas na região da Grande Dourados.
Provedor de dados: 14
Autores: FIETZ, C. R.; COMUNELLO, E.; FLUMIGNAN, D. L.
Tipo: Folhetos
Palavras-chave: Agrometeorologia; Mato Grosso do Sul; Agricultura; Clima; Meteorologia; Agrometeorology; Climate; Meteorology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125293

Vinte e nove genes.
Provedor de dados: 14
Autores: MEDEIROS, S. R. de.
Não há como escapar. Aonde quer se busque alguma informação, o novo coronavírus dá o ar de sua (des)graça. Não fugiremos à regra, mas tentando aproveitar as muitas lições oferecidas por ele. Segue a tentativa abaixo, procurando colocá-las também no contexto do ambiente rural, na esperança de também dar algum alento em meio a tanta dor e incerteza.
Tipo: Artigo na mídia
Palavras-chave: Coronavírus; Humildade; Simplicidade; Interdependência; Solidariedade; Criatividade; Relatividade dos números; Informação; Ciência; Tempo de aprendizado; Tempo de esperança.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129243

A integração das atividades produtivas da família Sousa: Povoado Baixinha, São Luís Gonzaga do Maranhão, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122903

Maracuyá: Passiflora edulis Sims.
Provedor de dados: 14
Autores: FALEIRO, F. G.; JUNQUEIRA, N. T. V.; JESUS, O. N. de; MACHADO, C. de F.; ROSA, R. C. C.; COSTA, A. M.; JUNQUEIRA, K. P.; JUNGHANS, T. G.
Tipo: Parte de livro
Palavras-chave: Passiflora Edulis Sims; Maracujá.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124053

Nanofibras: produção de nanofibras de celulose.
Provedor de dados: 14
Autores: VALADARES, L. F.
Tipo: Folders
Palavras-chave: Nanofibra; Material renovável; Borracha.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123233

APLICATIVO para gestão de riscos climáticos: programa 18: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o Zarc Plantio Certo, um aplicativo que indica ao produtor quais as melhores datas de plantio das culturas agrícolas e as práticas agropecuárias mais recomendadas para regiões e municípios, de acordo com as recomendações do Zoneamento Agrícola de Risco Climático. O pesquisador Eduardo Monteiro e o cientista da computação Silvio Evangelista, da Embrapa Informática Agropecuária, explicam como esse aplicativo pode ajudar o produtor no manejo e acompanhamento da produção agrícola.
Tipo: Gravações de som
Palavras-chave: Produção Agrícola; Risco Climático; Produtor; Plantio; Tecnologia Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122751

Recomendação agronômica de cepas de Bacillus subtilis (CNPMS B2084) e Bacillus megaterium (CNPMS B119) na cultura do milho.
Provedor de dados: 14
Autores: OLIVEIRA-PAIVA, C. A.; MARRIEL, I. E.; GOMES, E. A.; COTA, L. V.; SANTOS, F. C. dos; SOUSA, S. M. de; LANA, U. G. de P.; OLIVEIRA, M. C.; MATTOS, B. B.; ALVES, V. M. C.; RIBEIRO, V. P.; VASCO JUNIOR, R.
O objetivo desse trabalho foi avaliar o efeito da inoculação com as cepas Bacillus subtilis B2084 e B. megaterium B119, aplicadas isoladamente ou em mistura (BiomaPhos®), na produtividade de grãos de milho em condições de campo. O BiomaPhos é um produto que contém a tecnologia Embrapa de aumentar a eficiência de uso do fósforo por microrganismos para as plantas, o que pode resultar em menores doses de fertilizante e, consequentemente, menos dispêndio de energia na produção e no transporte. Além disso, aumentando a produtividade das culturas, diminui a pressão sobre novas áreas e aumenta a sustentabilidade dos atuais sistemas de produção.
Tipo: Folhetos
Palavras-chave: Agenda 2030; Sustentabilidade; Selo ODS 12; Objetivo de desenvolvimento sustentável; Zea Mays; Microrganismo; Solo; Inoculante; Inoculação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120362

Coleta de informações para estruturação do banco de dados para avaliação genética de bubalinos no Rio Grande do Sul.
Provedor de dados: 14
Autores: DAME, M. C. F.
Serão descritas as etapas para coletas de dados fenotípicos para bubalinos de corte e de leite, para abastecer o banco de dados para as avaliações genéticas.
Tipo: Folhetos
Palavras-chave: Búfalo; Bovino; Melhoramento Genético Animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127510

Cultivo de Brachiaria spp. no manejo de nematoides edáficos fitoparasitos.
Provedor de dados: 14
Autores: ASMUS, G. L.; CRUZ, T. T.
Ocorrência e danos de nematoides em Brachiaria; Multiplicação de nematoides em Brachiaria; Mecanismo de ação de Brachiaria sobre nematoides; Brachiaria como estratégia para manejo de fitonematoides
Tipo: Folhetos
Palavras-chave: Fitoparasitoide; Gramínea; Nematóide; Brachiaria.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127901

Agosto de 2020 teve chuvas expressivas, concentradas em poucos dias, na Região da Grande Dourados.
Provedor de dados: 14
Autores: FIETZ, C. R.; COMUNELLO, E.; FLUMIGNAN, D. L.
Tipo: Folhetos
Palavras-chave: Agrometeorologia; Mato Grosso do Sul; Meteorologia; Clima; Agricultura; Agrometeorology; Meteorology; Climate.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124897

Crescimento e controle de pinus em butiazal no sul do Brasil.
Provedor de dados: 14
Autores: SOSINSKI JUNIOR, E. E.; BARBIERI, R. L.; URRUTH, L. M.; OLIVEIRA, J. M. de; COSTA, F. A. da.
Este documento traz o resultado de ação da Embrapa em apoio à execução de políticas públicas, com foco na conservação e o uso sustentável de remanescentes naturais de palmeiras nativas no Rio Grande do Sul.
Tipo: Folhetos
Palavras-chave: Butiá; Pinus spp; Planta Exótica; Controle Ambiental; Árvore.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127752

Citros (laranjeira, limoeiro e tangerineira).
Provedor de dados: 14
Autores: VELOSO, C. A. C.
Tipo: Parte de livro
Palavras-chave: Citro; Laranja; Limão; Tangerina.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127322

Princípios técnicos de manejo de sistemas pecuários para maior disponibilidade de água no solo.
Provedor de dados: 14
Autores: VOLK, L. B. da S.; TRINDADE, J. P. P.
Funcionamento do solo e seu impacto na água; Infiltração da água no solo; Impacto do manejo dos animais no solo e na água; Princípios técnicos de manejos para o uso da água no solo em sistemas pecuários; Recomendações finais
Tipo: Folhetos
Palavras-chave: Manejo de Água; Água do Solo; Manejo do Solo; Pecuária; Armazenamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123508

Plano emergencial COVID-19: Embrapa Milho e Sorgo
Provedor de dados: 14
Autores: SOUSA, C. C. M. de; DURAES, F. O. M.
Este Plano emergencial Covid-19 da Embrapa Milho e Sorgo, para prevenção do novo coronavírus, com base nas Deliberações nº 4, de 17/ março/2020, nº 5, de 19/março/2020 e nº 6, de 23/março/2020. O documento traz informações sobre o regime de teletrabalho, sobre os serviços que estarão funcionando na Unidade em regime de revezamento, outras orientações normativas e os telefones de contato para atendimento aos empregados.
Tipo: Folhetos
Palavras-chave: Pandemia; Coronavírus; Prevenção; Vírus; Doença Respiratória; Administração.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121934

Emissão de metano em bovinos produzidos em Sistemas Integrados de Produção Agropecuária (SIPA).
Provedor de dados: 14
Autores: MONTEIRO, A. L. G.; PORTUGAL, T. B.; MORARES, A. DE; BERNDT, A.; BAYER, C.; CARVALHO, P. C. DE F.
A crescente emissão de Gases do Efeito Estufa (GEE), causada principalmente por ações antrópicas, tem influenciado as mudanças climáticas, afetando diretamente os ecossistemas, através do aquecimento global. Um dos grandes desafios da humanidade é produzir alimentos de maneira mais sustentável, do ponto de vista econômico e ambiental.
Tipo: Parte de livro
Palavras-chave: Emissão gases de efeito estufa; Mudanças climáticas; Pastagem de verão; ILPF; Avena Sativa; Milho; Megathyrsus maximus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131385

VISITA guiada: Embrapa Pecuária Sudeste.
Provedor de dados: 14
As pesquisas desenvolvidas na Embrapa Pecuária Sudeste contribuem significativamente para a promoção de ganhos em produtividade na pecuária, com o desenvolvimento de tecnologias de grande impacto nas cadeias produtivas do leite bovino e das carnes bovina e ovina.
Tipo: Folders
Palavras-chave: ILPF; Automação e pecuária precisão; Pegada hídrica; Produção carne e leite; Segurança e qualidade de alimentos; Mitigação de GEE; Bovinocultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127638

Boas práticas de produção nas primeiras semanas de vida dos pintos de corte.
Provedor de dados: 14
Autores: AVILA, V. S. de; KRABBE, E. L.; DUARTE, S. C.
Tipo: Folhetos
Palavras-chave: Boas práticas; Pintos de qualidade; Manejo adequado; Frango de Corte; Produção Animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128675

Recuperação de Pastagens em Região de Floresta do estado de Roraima.
Provedor de dados: 14
Autores: BENDAHAN, A. B.; VIANA, S. S.; FIGUEIREDO, E. O.; SANTOS, R.; MEDEIROS, R. D. de; COSTA, N. de L.
Nesse contexto, o presente trabalho teve como objetivo avaliar 13 diferentes tratamentos de recuperação de pastagem, por meio da quantificação da área ocupada pela espécie Uroclhoa brizantha cv. Marandu antes e depois dos processos de recuperação.
Tipo: Folhetos
Palavras-chave: Degradação de pastagem; Pastagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133157

A ciência do solo a serviço do campo em Alagoas.
Provedor de dados: 14
Autores: SILVA, L. M. da; IVO, W. M. P. de M.
O presente texto tem como objetivo informar sobre a rede de laboratórios que pode prestar serviços ao setor agropecuário em Alagoas. Traz um breve relato sobre as principais cadeias produtivas do agronegócio, classes de solos dominantes no estado, finalizando com as informações sobre laboratórios vinculados às atividades de pesquisa e aqueles que atendem ao público externo para análises de solo, água e tecido vegetal.
Tipo: Artigo na mídia
Palavras-chave: Laboratory network; Ciencia del suelo; Clasificación de suelos; Cadena de suministro; Industria agropecuaria; Reião Nordeste; Alagoas; Solo; Laboratório; Classificação do Solo; Cadeia Produtiva; Agronegócio; Soil science; Soil classification; Supply chain; Agribusiness.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1138176

Adubação de plantio e formação do cafeeiro Conilon.
Provedor de dados: 14
Neste capítulo, serão abordadas considerações importantes sobre adubações de plantio e sobre o manejo nutricional durante a fase de formação de cafeeiros Conilon, do transplantio até o primeiro florescimento.
Tipo: Parte de livro
Palavras-chave: Café Conilon; Coffea Canephora; Plantio; Adubação; Pratica Cultural; Planting; Fertilizer application; Plant cultural practices.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125338

Guia de identificação de pragas do pimentão.
Provedor de dados: 14
Autores: GUIMARAES, J. A.; MICHEREFF FILHO, M.; MOURA, A. P. de; SCHMIDT, F. G. V.; SOUSA, N. C. de M.; SPECHT, A.; LOPES, L. H. R.; INOUE-NAGATA, A. K.; LIMA, M. F.; TORRES, J. B.; SILVA, P. S. da.
Este trabalho disponibiliza imagens e informações básicas sobre ciclo de vida, características corporais e os sintomas e danos ocasionados ao pimentão em decorrência da infestação de cada praga.
Tipo: Livros
Palavras-chave: Praga de Planta; Inseto; Pimentão; Capsicum Annuum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124198

Produtividade da soja após consórcio de gramíneas e leguminosas em renovação de pastagem.
Provedor de dados: 14
Autores: CAPRISTO, D. P.; GIROLETTA, C. M. dos S.; OLIVEIRA, O. H. de; CECCON, G.; GARCIA, R. A.
Tipo: Resumo em anais e proceedings
Palavras-chave: Cultivo consorciado; Gramínea; Leguminosa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126651

Embarcadouro móvel para suínos.
Provedor de dados: 14
Autores: DALLA COSTA, O. A.; PILATTI, G.; BUSS, L. P.; LUDTKE, C. B.; DALLA COSTA, F. A.
Tipo: Folhetos
Palavras-chave: Suinocultura; Transporte Rodoviário; Embarque; Desembarque.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126524

Otimização do sistema de produção de silagem com a técnica de movimento e tempo.
Provedor de dados: 14
Autores: MANTOVANI, E. C.
O estudo de movimento e tempo é uma técnica bem conhecida na indústria, pouco utilizado na agricultura, e que poderá ajudar o agricultor a otimizar suas operações mecanizadas no sistema de produção de silagem. Para permitir a compreensão da contribuição deste estudo para a área técnica, o objetivo do trabalho é apresentar um procedimento simplificado, com a descrição separada de cada operação, com embasamento técnico para uso adequado de cada equipamento, integrado a uma otimização do sistema de produção de silagem, em um dimensionamento total das atividades.
Tipo: Folhetos
Palavras-chave: Maquina Agrícola; Silagem; Colheita Mecânica; Colheitadeira.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123262

Contexts of peace, justice, and strong institutions.
Provedor de dados: 14
Autores: STUCHI, J. F.; JESUS, I. R. D. de; DINIZ, F. H.
Tipo: Parte de livro
Palavras-chave: Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128270

Hortaliça não é só salada. Suco.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com suco. Limonada com couve. Suco de laranja com cenoura e beterraba. Suco de laranja com melão.
Tipo: Folders
Palavras-chave: Economia Domestica; Hortaliça; Suco.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129014

Garantia da segurança humana no contexto das operações de paz: examinando a agenda de segurança alimentar com base no estudo de caso da MINUSTAH (2004-2017).
Provedor de dados: 14
Autores: PAES, G. V. S.; OLIVEIRA, A. C. de; PEREZ, D. V.
A Missão das Nações Unidas para a estabilização no Haiti (MINUSTAH), encerrada em 2017, é considerada pela literatura uma operação de paz (OP) de quarta geração, marcada pela elevada permissão do uso da força. Neste artigo, será analisada a estratégia de garantia da segurança alimentar no contexto da MINUSTAH, considerando os problemas derivados da extensão da autoridade estatal, estratégia que caracteriza, não exclusivamente, mas principalmente, as operações de paz desta geração. Para tal, foi realizada uma análise de conteúdo das Resoluções do Conselho de Segurança, recorrendo, subsidiariamente, à leitura dos Relatórios do Secretariado. Como resultado deste estudo, observou-se que a segurança alimentar foi, majoritariamente, atrelada a uma ótica de curto...
Tipo: Artigo na mídia
Palavras-chave: Operações de Paz; MINUSTAH; Segurança Alimentar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135582

Polinização: Embrapa Escola.
Provedor de dados: 14
Autores: MALAGODI-BRAGA, K. S.
São apresentadas no vídeo informações básicas sobre os processos de polinização, especialmente sobre a função e importância das abelhas, em abientes urabnos, como quintais e jardins.
Tipo: Filmes
Palavras-chave: Abelha Brasileira; Polinização; Zona Urbana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130322

A tradição do coco-babaçu na família de Francilene e Antônio Adão: Povoado São João da Mata, Lago dos Rodrigues, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; GUSMÃO, L. A.; SOUSA, R. C. de.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122846

CORONAVÍRUS
Provedor de dados: 14
Coronavírus: orientações como evitar o contágio.
Tipo: Gravações de som
Palavras-chave: Coronavírus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121623

PORTFÓLIO serviços ambientais: pesquisa, inovação e subsídios às políticas públicas.
Provedor de dados: 14
Tipo: Folhetos
Palavras-chave: Serviços ambientais; Serviços ecossistêmicos; Pesquisa agropecuária; Biomas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127107

Produção e composição morfológica de pastos de híbridos de sorgo para pastejo manejados sob duas alturas com ovinos.
Provedor de dados: 14
Autores: POMPEU, R. C. F. F.; MARANHÃO, T. D.; COUTINHO, D. N.; CÂNDIDO, M. J. D.; VASCONCELOS, E. C. G.; LOPES, M. N.; ALMEIDA, B. P. de; GUEDES, F. L.; ROGERIO, M. C. P.; RODRIGUES, J. A. S.
Resumo: A sazonalidade da produção de forragem em regiões semiáridas consiste em um dos principais entraves à produção de ruminantes a pasto. A utilização de forrageiras tolerantes ao défice hídrico consiste em estratégia viável para minimizar a oscilação na produção de forragem das pastagens. Objetivou-se avaliar a produção e a composição morfológica de pastos de dois híbridos de sorgo para pastejo submetidos a duas alturas com ovinos. Os tratamentos consistiram da combinação entre dois híbridos de sorgo para pastejo (Sorghum bicolor x S. sudanense) (híbrido BR007A x TX2785, no meado BR; e o híbrido CMSXS157A x TX2785, nomeado de CM) e duas alturas pré-pastejo (60 cm e 80 cm), perfazendo quatro tratamentos, em um delineamento inteiramente casualizado com...
Tipo: Folhetos
Palavras-chave: Frequência de pastejo; Pastagens de sequeiro; Pequenos ruminantes; Grazing frequency; Rainfed pastures; Ovino; Sorghum Bicolor; Forragem; Pastagem Cultivada; Gramínea Forrageira; Small ruminants; Sheep; Forage grasses.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125804

Adoção de sistemas de integração lavoura-pecuária-floresta (ILPF) em São Paulo.
Provedor de dados: 14
Autores: VINHOLIS, M. de M. B.; SOUZA FILHO, H. M. de S.; CARRE, M. J.; BARIONI JUNIOR, W.; BERNARDO, R.; CASACA, A. A.; ROJAS, D. C.; TOKUDA, F. S.; PELINSON, G. J. B.; SANTOS JUNIOR, A. dos; GONÇALES JÚNIOR, I. D.; ANDRAUS, J. T. K.; JUSTO, J. S.; MARTINES, L.; GUERREIRO, M. F.; FADEL, S. A. de O.; BORGES, W. L. B.
Este estudo objetivou caracterizar a adoção dos sistemas de integração no Estado de São Paulo e identificar demandas. Uma amostra de 175 propriedades rurais, sendo 66 adotantes de sistemas de Integração Lavoura-Pecuária (ILP), 24 adotantes de sistemas de Integração PecuáriaFloresta (IPF) e 85 não adotantes de sistemas integrados, compôs a base de dados analisados por meio de estatística descritiva e teste qui-quadrado (x2) de Pearson. Os resultados indicam que os adotantes de sistemas ILP possuem maior experiência com atividades agrícolas, participação mais frequente em cooperativas agrícolas, palestras e dias de campo, bem como recebem mais orientação técnica. O acesso ao crédito rural e o uso mais frequente de mecanismos para gestão do risco climático e...
Tipo: Livros
Palavras-chave: ILPF; Sistema de integração; Sustentabilidade; Acesso à informação; Recursos financeiros; Adoção de tecnologia; Inovação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123559

Resistência do solo à penetração em diferentes sistemas de uso e manejo na região do Cerrado.
Provedor de dados: 14
Autores: NASCIMENTO, L. S. do; ARAUJO, A. R. de; FERREIRA, A. D.; CORRÊA, B. O.; MACEDO, M. C. M.; BONO, J. A. M.; ZIMMER, A. H.
Tipo: Folhetos
Palavras-chave: Manejo do Solo; Compactação do Solo; Subsolagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127937

A integração das atividades produtivas da família Sousa: Povoado Baixinha, São Luís Gonzaga do Maranhão, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; GUSMÃO, L. A.; SOUSA, R. C. de.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122827

Hortaliça como comprar, conservar e consumir: jiló.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Jiló. Como comprar. Como conservar. Como consumir. Farofa de jiló. Jiló marinado com tomate.
Tipo: Folders
Palavras-chave: Jiló; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125897

MILHO verde e doce: opção para a agricultura familiar e horticultura: programa 3: Centro-Oeste/Sudeste.
Provedor de dados: 14
Esta semana o Prosa Rural traz pra você um programa sobre o milho verde e doce: opção para a agricultura familiar e horticultura. Diferente do milho-verde, o milho-doce tem uma concentração maior de açúcar e leva de 85 a 90 dias do plantio à colheita. Você vai conhecer um pouco sobre o manejo do milho doce e saber por que essa hortaliça está incluída na categoria de milhos especiais. Participam do programa os pesquisadores da Embrapa Milho e Sorgo, Israel Alexandre Pereira Filho e Flávia França.
Tipo: Gravações de som
Palavras-chave: Milho Verde; Agricultura Familiar; Horticultura; Milho Doce.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119509

Hortaliça não é só salada. Arroz.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com arroz. Arroz de tomate. Arroz com ervilha e abóbora. Arroz com batata-doce.
Tipo: Folders
Palavras-chave: Hortaliça; Arroz; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126598

MANUTENÇÃO do babaçu na paisagem pecuária com ILPF: programa 43: Norte.
Provedor de dados: 14
Esta semana você tem um programa imperdível no Prosa Rural. O programa fala sobre a manutenção do babaçu na paisagem pecuária com ILPF, o sistema Integração Lavoura-Pecuária-Floresta. A Embrapa Cocais vem desenvolvendo estudos de avaliação de diferentes sistemas ILPF, buscando soluções para a manutenção de babaçuais na paisagem de pecuária, que promovam a integração econômica entre os produtos obtidos a partir do babaçu e os sistemas de criação de bovinos na região do Pindaré, Oeste maranhense. Participam do programa os pesquisadores Joaquim Costa e Luciano Muniz.
Tipo: Gravações de som
Palavras-chave: Sistema ILPF; Babaçu; Babaçual; Floresta; Lavoura; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126162

Plano municipal de mitigação e adaptação às mudanças do clima de Rio Branco.
Provedor de dados: 14
Autores: AMARAL, E. F. do; PANTOJA, E.; SAVIAN, G.; FRANKE, I. L.; VIANA, J. G. de L.; MORAES, J. R. da S. C. de; MARTORANO, L. G.; SOUSA, M. L.; GUERRA, R.; BRILHANTE, S. H. C.; NASCIMENTO, W.
O Plano Municipal de Mitigação e Adaptação às Mudanças do Clima (PMMC) norteará o município de Rio Branco na definição de políticas e projetos voltados à mitigação e adaptação às mudanças climáticas. Este Plano reúne as ações prioritárias a serem implementadas, para o enfrentamento dos desafios prementes, constituindo-se em um pacto de esperança e compromisso com os moradores de Rio Branco.
Tipo: Livros
Palavras-chave: Amazônia Ocidental; Cambio climático; Reducción de riesgos; Acre; Western Amazon; Amazonia Occidental; Mudança Climática; Políticas Públicas; Impacto Ambiental; Política Ambiental; Redução; Public policy; Environmental policy; Risk reduction; Climate change.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130604

Zoneamento das áreas suscetíveis à desertificação do estado de Pernambuco.
Provedor de dados: 14
Autores: SA, I. B.; CUNHA, T. J. F.; TAURA, T. A.; DRUMOND, M. A.; CAVALCANTI, E. R.; MENDONÇA, S. de A.; GUEDES, M. V.
Desertificação - conceitos adotados; Combate à desertificação como medida de adaptação às mudanças climáticas; Desertificação e os Objetivos de Desenvolvimento Sustentável Gênero e desertificação; Aspectos metodológicos; Do mapeamento das variáveis biofísicas; Da realização dos Diálogos Municipais e Workshops Regionais; Desertificação no estado de Pernambuco; Um panorama da suscetibilidade à desertificação em Pernambuco em dois recortes temporais; Suscetibilidade à Desertificação nas Regiões de Desenvolvimento Situadas no Semiárido; Região de Desenvolvimento Agreste Setentrional; Região de Desenvolvimento Agreste Central; Região de Desenvolvimento Agreste Meridional; Região de Desenvolvimento Sertão do Pajeú; Região de Desenvolvimento Sertão do Moxotó;...
Tipo: Livros
Palavras-chave: Suscetibilidade a desertificação; Pesquisa participativa; Região de Desenvolvimento Agreste Setentrional; Região de Desenvolvimento Agreste Central; Região de Desenvolvimento Agreste Meridional; Região de Desenvolvimento Sertão do Pajeú; Região de Desenvolvimento Sertão do Moxotó; Região de Desenvolvimento Sertão de Itaparica; Região de Desenvolvimento Sertão Central; Região de Desenvolvimento Sertão do Araripe; Semiárido; Pernambuco; Desertificação; Mudança Climática; Zoneamento Ecológico; Método de Pesquisa; Pesquisa Social; Desenvolvimento Sustentável; Arid soils; Arid zones; Desertification.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130865

Modelo de vagina artificial Labra2020 para colheita de sêmen de carneiros.
Provedor de dados: 14
Autores: MOLINA, J. C. J.; OLIVEIRA, M. B. de; AZEVEDO, H. C.
Tipo: Folhetos
Palavras-chave: Reprodução Artificial; Coleta de Sêmen; Sêmen; Carneiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129389

Anais...
Provedor de dados: 14
Autores: SIMPÓSIO IBEROAMERICANO SOBRE CONSERVAÇÃO E USO DE RECURSOS ZOOGENÉTICOS LOCAIS, 20., 2020, Corumbá.
O Simpósio sobre Conservação e Utilização de Recursos Zoogenéticos Locais é um evento internacional anual, aberto a participação de estudantes, produtores rurais, técnicos, pesquisadores, além de outros segmentos de interesse com temas relacionados aos recursos zoogenéticos locais (RZL). Este documento pretende disponibilizar ao leitor uma informação pontual sobre o trabalho que vem sendo desenvolvido sobre os diferentes temas relacionados a RZL e a oportunidade de contactar os profissionais responsáveis.
Tipo: Anais e Proceedings de eventos
Palavras-chave: Raça; Animal Domestico; Pesquisa; Animal breeding; Domestic animals; Animal research.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121387

Semiárido Show - inovações e dinâmicas de desenvolvimento regional: relatório técnico 2019.
Provedor de dados: 14
Autores: EMBRAPA SEMIÁRIDO.
No período de 19 a 22 de novembro de 2019, a Embrapa Semiárido, em parceria com o Instituto Agronômico de Pernambuco (IPA), realizou a 8a edição do Semiárido Show, com o tema ?Inovações e Dinâmicas de Desenvolvimento Regional?. O objetivo foi mostrar o conjunto de tecnologias e de experiências públicas e privadas voltadas para o desenvolvimento sustentável do Semiárido brasileiro. A programação de atividades e a exposição de produtos, processos e de serviços atraíram à feira cerca de 10 mil pessoas, entre produtores rurais, técnicos, pesquisadores, professores, estudantes do ensino médio, graduação e pós-graduação, gestores das esferas local, municipal, estadual e federal, representantes dos países dos Corredores Secos da América Latina e da sociedade...
Tipo: Folhetos
Palavras-chave: Relatorio do SemiaridoShow; Desenvolvimento Regional; Vitrines Tecnológicas; Vila da Economia Solidária; Agrobiodiversidade; Sustentabilidade; Convivência com o Semiárido; Vitrine de tecnologias; Inovação tecnológica; Semiárido Show 2019; Agricultura Alternativa; Agricultura Familiar; Agricultura Sustentável; Caatinga; Desenvolvimento Agrícola; Desenvolvimento Rural; Desenvolvimento Social; Desenvolvimento Socio-Econômico; Desenvolvimento Sustentável; Transferência de Tecnologia; Rural development; Rural families; Rural economics; Technology transfer.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124898

A vegetação nos aldeamentos indígenas Tekoha Añetete e Tekoha Itamarã, Diamante d'Oeste, Paraná.
Provedor de dados: 14
Autores: BONNET, A.; CURCIO, G. R.; CAVIGLIONE, J. H.; KACHAROUSKI, M.; PETRY, A. L.; DEBRINO, M. A.; BRUSTOLON, R.; KODAMA, A.
A cobertura florestal original que abrangia, em grande parte, o oeste do Paraná pertence à unidade fitogeográfica Floresta Estacional Semidecidual e apresenta como característica singular a semidecidualidade de 20% a 80% das árvores do dossel. Com o decorrer do desenvolvimento e expansão agrícolas, as florestas foram severamente reduzidas e empobrecidas floristicamente nos remanescentes. Restaram florestas como áreas mais extensas apenas em unidades de conservação, além de terras indígenas, importantes espaços para a conservação de flora e fauna. As terras indígenas no município de Diamante D?Oeste, PR, proporcionam atualmente a manutenção de aproximadamente 1.500 ha de florestas, inclusive nas margens de importantes rios. Grande parte dessas terras foram...
Tipo: Livros
Palavras-chave: Cobertura florestal; Floresta Estacional Semidecidual; Terra indígena; Floresta fluvial; Comunidade indígena; Política pública; Manejo; Preservação da Natureza; Vegetação Nativa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124777

REPRISE: uso de telas antigranizo em macieiras: programa 26: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o uso de telas antigranizo em pomares de macieira. Ao acompanhar o pesquisador Fernando Hawerroth, da Embrapa Uva e Vinho, o ouvinte vai saber que essas telas são a alternativa mais eficaz contra danos em plantas e frutos, e perdas econômicas, causadas pelo granizo. O programa explica de que material são feitas e como funcionam as telas antigranizo, desenvolvidas pela Embrapa, para a proteção das macieiras, bem como o percentual de proteção, que pode chegar a cem por cento.
Tipo: Gravações de som
Palavras-chave: Perda econômica; Tela antigranizo; Maçã; Granizo; Dano.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123607

Lignina kraft: formulação de liberação lenta à base de lignina kraft para controle de pragas.
Provedor de dados: 14
Autores: VAZ JUNIOR, S.
Tipo: Folders
Palavras-chave: Química de renováveis; Praga; Celulose.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123223

Interpretação dos resultados da análise do solo.
Provedor de dados: 14
Autores: BRASIL, E. C.; CRAVO, M. da S.
Tipo: Parte de livro
Palavras-chave: Análise do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127238

Hortaliça como comprar, conservar e consumir: pimenta-de-cheiro.
Provedor de dados: 14
Autores: CARVALHO, S. I. C. de; LANA, M. M.; RIBEIRO, C. S. da C.
Pimenta-de-cheiro. Como comprar. Como conservar. Como consumir. Salada colorida com pimenta-de-cheiro. Arroz à moda mexicana.
Tipo: Folders
Palavras-chave: Capsicum sp; Pimenta de Cheiro; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125445

Sem ciência, sem progresso, sem futuro.
Provedor de dados: 14
Autores: LOPES, M. A.
Neste momento de intensa disseminação de fake news e absurdos questionamentos de fundamentos científicos amplamente comprovados e consagrados, é preciso ampliar a capacidade de comunicar ciência para o grande público, trazendo à luz seus inequívocos benefícios e sua essencialidade para o progresso da sociedade.
Tipo: Artigo na mídia
Palavras-chave: Desinformação; Pesquisa Agrícola; Pesquisa; Nutrição Humana; Método de Pesquisa; Knowledge; Research; Research methods.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123568

NANOEMULSÃO de cera de carnaúba para evitar perda de frutos: programa 19: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana apresenta uma tecnologia importante para a conservação pós-colheita de frutos, em geral, e redução do desperdício. É a nanoemulsão de cera de carnaúba. Ao acompanhar o pesquisador Marcos David Ferreira, da Embrapa Instrumentação, o ouvinte vai saber que a conhecida cera de carnaúba agora conta com partículas ultrafinas - chamadas nanopartículas - capazes de preservar a qualidade e prolongar o tempo de vida dos frutos em cerca de 15 dias a mais, em comparação a outros revestimentos.
Tipo: Gravações de som
Palavras-chave: Nanoemulsão; Nanopartícula; Cera; Carnaúba; Fruto; Desperdício; Conservação; Pós-Colheita; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124573

Importância da avaliação do colostro.
Provedor de dados: 14
Autores: SOUZA, A. P. de; BASTOS, A. P. A.
Tipo: Artigo na mídia
Palavras-chave: Desmame; Qualidade do colostro; Suinocultura; Imunidade; Colostro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125655

Hortaliça como comprar, conservar e consumir: acelga.
Provedor de dados: 14
Autores: TAVARES, S. A.; LANA, M. M.
Acelga. Como comprar. Como conservar. Como consumir. Lasanha com acelga. Torta recheada com acelga.
Tipo: Folders
Palavras-chave: Acelga; Economia Domestica; Culinária; Beta Vulgaris Cicla.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125574

Hortaliça como comprar, conservar e consumir: pepino.
Provedor de dados: 14
Autores: TAVARES, S. A.; MELO, M. F. de; LANA, M. M.; SANTOS, F. F. dos; MATOS, M. J. L. F.
Pepino. Como comprar. Como conservar. Como consumir. Pepino refogado. Salada de pepino com iogurte.
Tipo: Folders
Palavras-chave: Pepino; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126014

Verminose ovina.
Provedor de dados: 14
Autores: BENAVIDES, M. V.; SOUZA, C. J. H. de.
O que é a verminose ovina e como ocorre a infecção/transmissão entre os ovinos? Quais a os sintomas nos animais? Quais as principais medidas que o produtor deve tomar para controlar de maneira correta a doença?
Tipo: Folhetos
Palavras-chave: Ovino; Ovinocultura; Parasitose; Parasito de Animal; Verminose.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128427

Adaptabilidade e estabilidade de híbridos de girassol de segunda safra de verão no Brasil, anos agrícolas 2016 e 2017.
Provedor de dados: 14
Autores: AMABILE, R. F.; MATOS, V. A. T.; DALCHIAVON, F. C.; BORBA FILHO, A. B.; ALVES, A. D.; FREITAS, R. J.; ANSELMO, J. L.; SILVA, A. G.; GODINHO, V. de P. C.; CARVALHO, C. G. P.
Resumo ? O objetivo deste trabalho foi realizar um estudo de adaptabilidade e estabilidade de híbridos de girassol cultivados em segunda safra de verão no Brasil, nos anos agrícolas 2016 e 2017. Os ensaios foram conduzidos em delineamento de blocos ao acaso em Goiás, Minas Gerais, Mato Grosso do Sul, Mato Grosso, Pará, Piauí, Rondônia, São Paulo e no Distrito Federal. Foram considerados ambientes favoráveis ? aqueles cujas médias dos híbridos foram superiores à média geral do ensaio; e ambientes desfavoráveis ? aqueles cujas médias dos híbridos foram inferiores à da geral. Para rendimento de grãos, BRS G51 e BRS 323 apresentaram indicação para os ambientes favoráveis e desfavoráveis e o BRS G49, indicação para ambientes favoráveis. Para rendimento de óleo,...
Tipo: Folhetos
Palavras-chave: Teor de óleo; Produção de óleo; Helianthus Annuus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125361

ROBUSTAS amazônicos: café com amor tem mais sabor: do coração da floresta para sua casa.
Provedor de dados: 14
Este vídeo apresenta depoimento de agricultora indígena sobre a produção sustentável de café em sua aldeia.
Tipo: Filmes
Palavras-chave: Povos indígenas; Rondônia; Amazônia Ocidental; Western Amazon; Café Robusta; Coffea Canephora; Produção; Qualidade; Pratica Cultural; Agricultura Familiar; Agricultura Sustentável; Coffee beans; Crop production; Fruit quality; Plant cultural practices; Sustainable agriculture; Family farms; Women in agriculture; Community supported agriculture; Indigenous peoples; Traditional technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130932

A tradição da família de dona Belinha no cultivo do feijão abafado: Povoado do Lago do Sigismundo, Esperantinópolis, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122855

Efeito da alimentação do suíno sobre a qualidade dos produtos gerados.
Provedor de dados: 14
Autores: LUDKE, J. V.; CAMPOS, J. M. L. de; BERTOL, T. M.
Tipo: Artigo na mídia
Palavras-chave: Qualidade da carne; Qualidade da gordura; Qualidade do salame; Nutrição Animal; Suíno; Alimentação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122491

Dezembro de 2020 teve chuvas mal distribuídas na região da Grande Dourados e em Ivinhema.
Provedor de dados: 14
Autores: FIETZ, C. R.; COMUNELLO, E.; FLUMIGNAN, D. L.
Tipo: Folhetos
Palavras-chave: Agrometeorologia; Meteorologia; Clima; Agricultura; Agriculture; Climate.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129183

Aproveitamento de resíduos agroindustriais: uma abordagem sustentável.
Provedor de dados: 14
Autores: VAZ JUNIOR, S.
A produção agropecuária é uma das mais importantes atividades socioeconômicas humanas, uma vez que visa à produção de alimentos, fibras e bioenergia. Mais recentemente a agropecuária passou também a prover matérias-primas diversas para produção de novos bioprodutos e bioinsumos, naquilo que se convencionou chamar de economia circular ou bioeconomia. Isso somente foi possível pelo constante avanço científico-tecnológico que permitiu o desenvolvimento de novas biomassas assim como de novos processos industriais para aproveitamento de culturas dedicadas e também daquilo que outrora era chamado de resíduo. Para se ter uma ideia da dimensão de tal atividade, dados recentes estimam que a produção agrícola mundial seja da ordem de 7,26 Gt, e que o volume de...
Tipo: Folhetos
Palavras-chave: Economia circular; Bioeconomia; Biomassa vegetal; Biomassa agrícola; Sustentabilidade; Biomassa; Resíduo Agrícola; Matéria Prima; Biomass; Bioeconomics; Sustainable agriculture; Agricultural wastes.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126255

Exportações da piscicultura brasileira no 1º trimestre de 2020.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; ROCHA, H. S.
Entre janeiro e março de 2020 as exportações da piscicultura (e seus subprodutos) totalizaram 1.635 toneladas, o que representa um aumento de 42,67% comparado com o mesmo período de 2019, quando foram exportadas 1.146 toneladas.
Tipo: Fascículos de periódicos
Palavras-chave: Exportação; Piscicultura; Balança Comercial.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123853

Irradiação de Drosophila suzukii visando o uso da técnica do inseto estéril.
Provedor de dados: 14
Autores: KRÜGER, A. P.; HOFFMANN, D. C.; WOLLMANN, J.; NAVA, D. E.; GARCIA, F. R. M.
Esta publicação tem como objetivo disponibilizar informações referentes aos procedimentos para realizar a irradiação de pupas de D. suzukii utilizando fonte de Cobalto 60, a fim de garantir a esterilização do inseto-alvo, sem afetar outros parâmetros biológicos relacionados a dispersão e a competição, para utilização em programa de TIE.
Tipo: Folhetos
Palavras-chave: Técnica do Inseto Estéril; Inseto; Drosophila suzukii.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126888

Integração Lavoura-Pecuária em Solos Arenosos: estudo de caso da Fazenda Campina no Oeste Paulista.
Provedor de dados: 14
Autores: CORDEIRO, L. A. M.; KLUTHCOUSKI, J.; SILVA, J. R.; ROJAS, D. C.; OMOTE, H. de S. G.; MORO, E.; SILVA, P. C. G.; TIRITAN, C. S.; LONGEN, A.
Tipo: Livros
Palavras-chave: Sistema de Cultivo; Solo Arenoso; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125366

GeoPortal da Embrapa Milho e Sorgo: procedimentos para atualização do servidor de mapas e ampliação da base cartográfica.
Provedor de dados: 14
Autores: VALADARES, G. M.; LANDAU, E. C.; MATTOS, M. C. T. de; SANTOS, A. H. dos; NERY, R. N.; PIMENTA, F. M.; HIRSCH, A.; GUIMARAES, D. P.
Este trabalho visa apresentar atualizações recentes nos procedimentos da programação adotada para permitir o acesso público às informações georreferenciadas disponibilizadas no servidor de mapas do GeoPortal, bem como informar sobre atualizações das bases de dados e publicações com acesso disponibilizado on-line através deste.
Tipo: Folhetos
Palavras-chave: Geoprocessamento; Geotecnologia; Base de Dados; Sensoriamento Remoto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122750

Hortaliça com comprar, conservar e consumir: cheiro verde.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Cheiro verde. Como comprar. Como conservar. Como consumir. Omelete de cebolinha. Farofa de coentro e ovo.
Tipo: Folders
Palavras-chave: Coentro; Cebolinha; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125771

Propagação e manejo fitossanitário de mudas de maniçoba.
Provedor de dados: 14
Autores: ANTONIO, R. P.; OLIVEIRA, A. R. de; MORAES, S. A. de; RIBEIRO JUNIOR, P. M.; COSTA-LIMA, T. C. da; DANTAS, B. F.
Neste trabalho são apresentadas as principais recomendações para alcançar sucesso na propagação de mudas de maniçoba por meio de sementes ou por meio de estaquia em condições de viveiro, bem como o manejo fitossanitário, com o objetivo de direcionar de forma adequada as práticas adotadas por viveiristas e agricultores na condução desta etapa inicial do desenvolvimento das plantas.O principal fator para quebra de dormência em sementes de maniçoba é o tempo de armazenamento de no mínimo 1 ano. Se utilizado em conjunto com a escarificação mecânica com lixa e imersão em água, por 2 horas, não haverá grandes dificuldades para a produção de mudas por este método. Para fixação das qualidades genéticas de boas matrizes de maniçoba (produção de clones), a...
Tipo: Folhetos
Palavras-chave: Alimentação animal; Propagação de mudas de maniçoba; Maniçoba; Propagação Vegetativa; Muda; Quebra da Dormência; Alimentação Na Seca; Semente; Manihot; Animal feeders; Vegetative propagation.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128063

Você está pronto para a fruticultura de precisão?
Provedor de dados: 14
Autores: GEBLER, L.
Agricultura de precisão, hoje tão comentada como exemplo de modernidade na área de grãos, tem uma história de implantação e desenvolvimento recente, menos de 40 anos, mas nem sempre foi tão suave ou linear. Isto se deu, por motivos como os equipamentos necessários para sua aplicação nem sempre estarem disponíveis para uso civil, como o sistema GPS, e por isto o maquinário existente não apresentava conectividade entre a coleta de dados e seu georreferenciamento, ou pela ausência de profissionais habilitados a trabalharem estes dados, seja por falta de instrumentos computacionais, na época, seja por falta de treinamento, o que vem sendo revertido somente nos últimos anos.
Tipo: Artigo na mídia
Palavras-chave: Fruticultura; Agricultura de Precisão; Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125645

Oídio em cevada: avaliação histórica das linhagens do programa de melhoramento da Embrapa Trigo em 2020.
Provedor de dados: 14
Autores: COSTAMILAN, L. M.; MINELLA, E.; VILARINHO, A. A.
Oídio em cevada, causado por Bkumeria graminis f. sp. hordei (BGH) é uma das principais doenças da cultura, no mundo.
Tipo: Folhetos
Palavras-chave: Blumeria graminis f sp; Cevada; Oídio; Hordeum Vulgare.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129886

Produto Interno Bruto (PIB) do Complexo Agroindustrial da bovinocultura de corte de Goiás.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Agricultura; Agronegócio; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123363

Embalagens do agro alimentam Economia Circular.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000981459/embalagens-do-agro-alimentam-economia-circular.html.
Tipo: Artigo na mídia
Palavras-chave: Logística reversa; Reciclagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129582

Farinhas integrais de banana verde prata e nanica: potencial de aplicação na alimentação humana.
Provedor de dados: 14
Autores: SOARES, M. G. L.; BORSOI, L. M.; SENA, G. G. S.; ASCHERI, J. L. R.; SILVA, E. M. M. DA.
Tipo: Parte de livro
Palavras-chave: Novos produtos; Desperdício; Musa sp; Nutrição.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124171

Preparo de material nanoencapsulado a partir de vitamina C extraída de resíduo agroindustrial de acerola.
Provedor de dados: 14
Autores: BRITTO, D. de.
Elaboração do material nanoencapsulado; Extração da vitamina C residual com solução de quitosana; Estabilização da vitamina C via nanoencapsulação por gelificação iônica; Formação de filmes nanocompósitos.
Tipo: Folhetos
Palavras-chave: Resíduo agroindustrial; Compostos bioativos; Nanoencapsulado; Agroindustria; Acerola; Vitamina C; Processamento; Subproduto; Resíduo; Resíduo Agrícola; Malpighia emarginata.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124067

Junho de 2020 teve chuva e temperaturas acima das médias na Região da Grande Dourados.
Provedor de dados: 14
Autores: FIETZ, C. R.; COMUNELLO, E.; FLUMIGNAN, D. L.
Tipo: Folhetos
Palavras-chave: Agrometeorologia; Meteorologia; Clima; Agrometeorology; Climate; Meteorology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123694

REPRISE: instalação de hortas em quintais urbanos: programa 20: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a instalação de hortas em quintais urbanos. Ao acompanhar o pesquisador Rafael Porto, da Embrapa Roraima, o ouvinte vai saber que, tanto nas cidades quanto naquele perímetro em que o meio urbano e o rural se confundem, é possível instalar hortas em quintais, em espaços públicos, e até mesmo em sacadas de apartamentos. O programa mostra que essa iniciativa, que pode ser individual ou coletiva, diminui os custos de alimentação das famílias e é importante para a segurança alimentar.
Tipo: Gravações de som
Palavras-chave: Horta Caseira; Segurança Alimentar; Alimentação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122753

Sintomas em frutos de macieira na safra 2019-20.
Provedor de dados: 14
Autores: NUNES, C. C.; ABREU, J. T. de; ALVES, S. A. M.
Ao longo da safra, durante as diversas etapas do ciclo produtivo, os frutos de macieira podem sofrer o ataque de diferentes patógenos, que causam variados sintomas e perdas econômicas. A maioria das doenças em frutos se manifestam na forma de podridões, que apresentam coloração específica e geralmente se desenvolvem em regiões preferenciais da superficie do fruto, de acordo com a etiologia do patógeno. Entretanto, há sintomas semelhantes, que podem ter sido causados por diferentes agentes patogênicos.
Tipo: Artigo na mídia
Palavras-chave: Cv Fuji; Cancro Europeu; Maçã; Safra; Podridão; Cancro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124839

Intensificação produtiva da agricultura e regularização ambiental: encontros e desencontros territoriais entre o Censo Agropecuário e o Cadastro Ambiental Rural.
Provedor de dados: 14
Autores: MIRANDA, E. E. de; CARVALHO, C. A. de; MARTINHO, P. R. R.
Tipo: Parte de livro
Palavras-chave: Agropecuária; Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127561

O mês de novembro foi o mais seco dos últimos 25 anos.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
O total de chuvas em novembro foi de 28 mm, que é o menor valor já registrado na estação meteorológica da Embrapa desde o início da coleta de dados em 1995
Tipo: Artigo na mídia
Palavras-chave: Clima; Clima Tropical; Climatologia; Mudança Climática; Chuva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127864

Desempenho agronômico de cultivares de Café Conilon com diferentes épocas de maturação dos frutos no Cerrado Central.
Provedor de dados: 14
Autores: VEIGA, A. D.; GUERRA, A. F.; BARTHOLO, G. F.; ROCHA, O. C.; RODRIGUES, G. C.; CARVALHO, M. A. de F.; AMABILE, R. F.
As novas opções de cultivares de cafeeiros C. canephora, com ciclos de maturação distintos, lançadas pelo Incaper-ES em 2013, apresentam alto potencial de produção, em condições irrigadas, porém necessitam ser testadas e avaliadas em condições de Cerrado. O objetivo do trabalho foi avaliar o desempenho agronômico das cultivares Diamante ES8112, Jequitibá ES8122 e Centenária ES8132, com ciclo precoce, intermediário e tardio, respectivamente, nas condições do cerrado central. Cada cultivar é composta pelo agrupamento de nove genótipos clonais. O experimento foi instalado em fevereiro 2017 na área experimental da Embrapa Cerrados, irrigada com pivô central em espaçamento 3,5 m x 0,5 m entre plantas, em altitude de 1.050 m e solo do tipo Latossolo Vermelho...
Tipo: Folhetos
Palavras-chave: Café Conilon; Maturação do fruto; Desempenho agronômico; Maturação; Cafeicultura; Cerrado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130784

Consumo de hortaliças na pandemia.
Provedor de dados: 14
Autores: NASCIMENTO, W. M.; CARVALHO, H. M. G.; SIQUEIRA, K. B.
A Embrapa Hortaliças e o IBRAHORT realizou uma pesquisa para acompanhar o comportamento do consumidor brasileiro de hortaliças durante a pandemia, considerando o consumo domiciliar. Participaram da pesquisa 4.265 consumidores distribuídos em todo o território brasileiro, sendo que os seguintes locais tiveram maior representatividade na pesquisa: São Paulo, Rio de Janeiro, Minas Gerais, Distrito Federal, Rio Grande do Sul e Paraná.
Tipo: Artigo na mídia
Palavras-chave: Consumidor brasileiro; Disponibilidade de hortaliças; Consumo de hortaliças; Comércio de hortaliças na pandemia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133665

Recomendações de calagem e adubação para o estado do Pará.
Provedor de dados: 14
2. ed. rev. e atual.
Tipo: Livros
Palavras-chave: Solo; Manejo do Solo; Adubação; Calagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125022

Diversidade e incidência de parasitoides de percevejos adultos na cultura da soja e sua relação com o uso de inseticidas.
Provedor de dados: 14
Autores: AQUINO, M. F. S.; SUJII, E. R.; MORAES, M. C. B.; BORGES, M.; LAUMANN, R. A.
Tipo: Folhetos
Palavras-chave: Inimigos naturais; Controle Biológico; Díptera; Hymenoptera; Pentatomidae; Biological control; Natural enemies.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126318

A diversificação da produção de dona Lila e seu Toinho: Comunidade Centro dos Cocos, São Luís Gonzaga do Maranhão, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122906

Adoção do sistema de plantio direto levou a ganhos sociais.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000983220/adocao-do-sistema-de-plantio-direto-levou-a-ganhos-sociais.html.
Tipo: Artigo na mídia
Palavras-chave: Produção Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129614

Avaliação de métodos de determinação da densidade de solo em amostras com diferentes atividades da fração argila coletadas no município de Rio Branco, estado do Acre.
Provedor de dados: 14
Autores: SILVA, L. M. da; COSTA, R. de K. do N.; ALMEIDA, A. S. de; OLIVEIRA, C. H. A. de; ARAÚJO, E. A. de; TAVARES, O. C. H.; PEREIRA, M. G.; SANTOS, O. A. Q. dos.
O objetivo deste trabalho foi avaliar a determinação da densidade do solo por meio dos métodos do anel volumétrico e do torrão parafinado em solos com argila de atividade alta e argila de atividade baixa. Esta publicação está de acordo com o Objetivo de Desenvolvimento Sustentável 15 (Vida Terrestre). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas e que tem o apoio da Embrapa para que sejam atingidas.
Tipo: Folhetos
Palavras-chave: Densidade do solo; Método do torrão parafinado; Método do anel volumétrico; Paraffin clod method; Volumetric ring method; Fìsica del suelo; Análisis del suelo; Minerales arcillosos; Densidad del suelo; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Selo ODS 15; Física do Solo; Análise do Solo; Argila; Soil physics; Soil analysis; Soil density; Clay minerals.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126449

MILHO verde e doce: opção para a agricultura familiar e horticultura: programa 3: Sul.
Provedor de dados: 14
Esta semana o Prosa Rural traz pra você um programa sobre o milho verde e doce: opção para a agricultura familiar e horticultura. Diferente do milho-verde, o milho-doce tem uma concentração maior de açúcar e leva de 85 a 90 dias do plantio à colheita. Você vai conhecer um pouco sobre o manejo do milho doce e saber por que essa hortaliça está incluída na categoria de milhos especiais. Participam do programa os pesquisadores da Embrapa Milho e Sorgo, Israel Alexandre Pereira Filho e Flávia França.
Tipo: Gravações de som
Palavras-chave: Agricultura Familiar; Horticultura; Milho Doce; Milho Verde.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119554

Bancos e coleções de germoplasma da Embrapa: conservação e uso.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Coleção Microbiana; Alelo; Banco de Germoplasma; Coleção de Animal; Coleção de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124923

Estudo interlaboratorial em digestão anaeróbia Relato de atividades e desempenho dos laboratórios em 2016-2017.
Provedor de dados: 14
Autores: STEINMETZ, R. L. R.; BARROS, E. C.; KUNZ, A.; ANTES, F. G.; AMARAL, A. C. do; CÂNDIDO, D.; GASPARETO, T. C.; TÁPPARO, D. C.; PEREIRA NETO, S.; MARCHIORO, V.
Tipo: Livros
Palavras-chave: Dejeto animal; Análise laboratorial; Boas práticas; Análise de Laboratório; Tecnologia; Biogás; Digestão Anaeróbia; Biodigestor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127909

BPA - BOAS práticas para uma pecuária sustentável: programa 37: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre as Boas Práticas Agropecuárias (BPA), voltadas para a pecuária de corte. O programa mostra a tendência do mercado atual, no qual tem melhor com sustentabilidade, levando em conta, entre outros aspectos, o bem-estar animal, o controle sanitário, a adequação das instalações e a correção do manejo, como explica o pesquisador Gustavo Martins, da Embrapa Pecuária Sul. Para saber mais, não perca o Prosa Rural. O Prosa Rural é o programa de rádio da Embrapa!
Tipo: Gravações de som
Palavras-chave: Pecuária; Manejo; Mercado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125235

Inseminação Artificial Transcervical em Tempo Flexível (IATFx) em cabras leiteiras.
Provedor de dados: 14
Autores: FONSECA, J. F. da.
Apresentar as melhores estratégias de preparação de cabras, nas diferentes estações do ano, e suas respectivas peculiaridades, que possam promover excelentes índices de sucesso (ges-tação) com o uso e aplicação correta da IA em cabras leiteiras criadas em ambiente tropical.
Tipo: Folhetos
Palavras-chave: Caprino; Cabra Leiteira; Sincronização do Cio; Reprodução Animal; Dairy goats; Reproduction; Artificial insemination.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128197

Hortaliça como comprar, conservar e consumir: pimenta habanero.
Provedor de dados: 14
Autores: LANA, M. M.; RIBEIRO, C. S. da C.; CARVALHO, S. I. C. de.
3 ed. rev.
Tipo: Folders
Palavras-chave: Pimenta; Capsicum sp; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125384

Sorgo: cereal ancestral bem atual: coletânea de receitas sem glúten com sorgo integral.
Provedor de dados: 14
Autores: QUEIROZ, V. A. V.; OLIVEIRA, F. C. E. de; MENEZES, C. B. de; RODRIGUES, J. A. dos S.
O aumento progressivo de casos de doença celíaca e demais formas de intolerância ao glúten tem resultado em demanda ascendente por novos produtos, nutritivos e de alta qualidade, que sejam isentos dessa proteína, já que o tratamento para elas consiste na exclusão total do glúten da dieta. Entretanto, os produtos atualmente existentes no mercado são, em sua maioria, confeccionados com uma mistura de farinhas pouco nutritivas e de custo elevado predispondo esses indivíduos a uma escassez de produtos integrais com preços acessíveis. E é nesse contexto, que o sorgo desponta como alternativa totalmente viável e segura para competir com os demais cereais sem glúten disponíveis no mercado. Além disso, o sorgo, que é considerado um grão ancestral, tem se tornado...
Tipo: Livros
Palavras-chave: Sorghum Bicolor; Alimentação; Nutrição Humana; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126619

Reação de cultivares e híbridos experimentais de brócolis de inflorescência única à podridão negra e desempenho agronômico no Distrito Federal.
Provedor de dados: 14
Autores: QUEZADO-DUVAL, A. M.; MELO, R. A. de C. e; MOITA, A. W.
O impulso que a cultura dos brócolis teve nos últimos anos demonstra que existe um grande potencial de mercado para essa hortaliça. Na medida em que novas cultivares são disponibilizadas, é necessário que sejam avaliadas quanto ao desempenho agronômico, qualidade para mercado e suscetibilidade a doenças, como a podridão negra, nas diferentes regiões de produção.
Tipo: Folhetos
Palavras-chave: Brócolo; Doença de Planta; Variedade Resistente; Podridão Negra; Características Agronômicas; Brassica oleracea var. italica; Xanthomonas campestris pv. campestris.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121615

Espécies vegetais recomendadas para cortinamento em Estações de Tratamento de Esgoto (ETEs) na região noroeste do Rio Grande do Sul.
Provedor de dados: 14
Autores: MIURA, A. K.; BESKOW, G. T.; HENZEL, A. B. D.; BIERHALS, D. F.; MOLZ, M.; GOMES, G. C.; SPIERING, V.; CUNHA, H. N. da; SIQUEIRA, R. de O.; SOUSA, L. P. de; GUARINO, E. de S. G.
Estações de tratamento de esgoto são empreendimentos potencialmente produtores de odores e ruídos desagradáveis, comumente alocados junto a comunidades urbanas, gerando constantes conflitos (Scussel; Giassi, 2014). Como forma de reduzir esses impactos nas comunidades vizinhas às ETEs, as cortinas vegetais tornam-se uma valorosa alternativa (Monterosso, 2009), pois promovem a diluição, deposição e interceptação física de partículas de poeira, aerossóis e de moléculas de odor, além de proporcionar efeito psicológico em função da ocultação da fonte de odor, com a modificação da paisagem (Colletty; Tyndall, 2002). Essas estruturas apresentam também efeitos positivos na segurança patrimonial de construções, assim como na redução de erosão e de poluição sonora...
Tipo: Livros
Palavras-chave: Arbusto; Paisagismo; Tratamento de Esgoto; Vegetação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122565

Semiárido que encanta, juventude que comunica sua história na Paraíba.
Provedor de dados: 14
Autores: ALMEIDA, A. P. S. de; OLIVEIRA, C. S. de; SOUSA, C. N. de; SANTOS, E. M. C. dos; SILVA, E. P. da; MARQUES, M. A. da S.; SILVA, M. V.; OLIVEIRA, P. N. de; LIMA, R. A. de.
A juventude está mesmo deixando o Semiárido? A pergunta pode inquietar diversos agentes envolvidos nas ações de convivência com o bioma Caatinga, entretanto, evidencia o encantamento de parte considerável da juventude camponesa pelo lugar em que vive, suas diversas práticas solidárias, tradições culturais e avanços resultantes da luta popular por direitos e suas conquistas. A Articulação do Semiárido Paraibano (ASA/Paraíba) ? fórum que compreende as ações desenvolvidas por organizações sociais em sete territórios espalhados pelo estado da Paraíba ? é o cenário de uma juventude disposta a compartilhar, por meio da comunicação, as experiências e ações que fazem do lugar em que vive o espaço onde pulsa amor e vida. Essa juventude se articula por meio do grupo...
Tipo: Parte de livro
Palavras-chave: Agroecologia; Juventude Rural; Comunicação; Agricultura Familiar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1156299

Desempenho de genótipos de mandioca no Baixo Acre e Juruá.
Provedor de dados: 14
Autores: BERGO, C. L.; COSTA, F. de S.; LESSA, L. S.; LAMBERTUCCI, D. M.
O objetivo geral desta publicação foi confrontar a produtividade da cultivar de mandioca BRS Ribeirinha, recomendada pela Embrapa Acre para a regional do Baixo Acre, com a produtividade de genótipos selecionados e amplamente cultivados pelas comunidades locais nas regiões do Baixo Acre sem correção e adubação do solo e do Juruá com e sem correção e adubação do solo. Esta publicação está de acordo com o Objetivo de Desenvolvimento Sustentável 2 (Fome Zero e Agricultura Sustentável). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas.
Tipo: Folhetos
Palavras-chave: Yuca; Ensayos de variedades; Factores ambientales; Aclimatación; Rendimiento de los cultivos; BRS Ribeirinha; Baixo Acre; Regional do Juruá; Rio Branco (AC); Mâncio Lima (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Selo ODS 2; Mandioca; Manihot Esculenta; Características Agronômicas; Comportamento de Variedade; Condição Ambiental; Aclimatação; Rendimento; Cassava; Agronomic traits; Variety trials; Environmental factors; Acclimation; Crop yield.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130049

Desafios sanitários e o mercado para a carne bovina brasileira.
Provedor de dados: 14
Autores: Barcellos, J.; OLIVEIRA, T. E. de; SUÑÉ, A, I. C. P.
Edição do convidado. Boletim Cicarne.
Tipo: Folders
Palavras-chave: Carne bovina; Cadeia Produtiva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125594

Ocorrência, flutuação populacional e danos de percevejo castanho em cultivares de pastagens.
Provedor de dados: 14
Autores: TORRES, F. Z. V.; AMARAL, B. B.; ANGELO, T. M.; MONTAGNER, D. B.; ARAUJO, A. R. de; BARBOSA, R. A.; SUJII, E. R.; LIRA, E. da C.; WEISS, G.
O percevejo castanho é um inseto polífago que ataca inúmeras plantas hospedeiras, e é considerado uma importante praga de gramíneas forrageiras, principalmente devido ao difícil controle. Este trabalho objetivou avaliar a ocorrência e a flutuação populacional de percevejos castanhos ao longo do tempo em área altamente infestada, a preferência do percevejo castanho por diferentes cultivares de pastagens, bem como os danos sofridos por estas em decorrência do seu ataque. As cultivares avaliadas foram Brachiaria brizantha cvs. Marandu, BRS Piatã e BRS Paiaguás, Panicum maximum cvs. Massai, BRS Zuri e BRS Tamani e Andropogon gayanus cv. Baeti, e a pastagem degradada ao redor da área experimental serviu de testemunha. O delineamento utilizado foi em blocos...
Tipo: Folhetos
Palavras-chave: Praga de pastagem; Pasture pests; Capim Andropogon; Pastagem Cultivada; Percevejo Castanho; Praga de Planta; Solo Arenoso; Scaptocoris carvalhoi; Sandy soils.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120983

Exportações da piscicultura brasileira cresce 53% no 3º trimestre de 2020.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; ROCHA, H. S.
No terceiro trimestre de 2020, as exportações de produtos da piscicultura brasileira apresentaram crescimento de 53% no comparativo com o segundo trimestre, atingindo US$ 3.324.197. Quase todas as categorias de produtos apresentaram aumento; uma exceção foi a categoria 'subprodutos impróprios para alimentação humana'. Merece destaque a categoria 'outros filés de peixe', que totalizou US$ 1.453.005, ou seja, um aumento de 85% comparado com o segundo trimestre. Os filés congelados também apresentaram um aumento expressivo, passando de US$ 88.536 no segundo trimestre para US$ 194.085 no terceiro trimestre. O total acumulado no ano é de US$ 8.669.533, representando uma alta de 20% comparado com o mesmo período de 2019 (US$ 7.232.548).
Tipo: Fascículos de periódicos
Palavras-chave: Balança Comercial; Exportação; Piscicultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126130

Hortaliça como comprar, conservar e consumir: couve-flor.
Provedor de dados: 14
Autores: MATOS, M. J. L. F.; LANA, M. M.; SANTOS, F. F. dos; MELO, M. F. de; TAVARES, S. A.
Couve-flor. Como comprar. Como conservar. Como consumir. Couve-flor gratinada. Torta de couve-flor.
Tipo: Folders
Palavras-chave: Couve Flor; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125876

Desempenho de clones de seringueira na região Centro-Oeste do Brasil.
Provedor de dados: 14
Autores: PEREIRA, A. V.; FIALHO, J. de F.; PEREIRA, E. B. C.; JUNQUEIRA, N. T. V.; MARTINS, M. A.; MATTOSO, L. H. C.; LIMA, W. A. A. de; DIANESE, A. de C.; ALVES, R. T.; VEIGA, A. D.; FALEIRO, F. G.; CONCEIÇÃO, L. D. H. C. S. DA; BRAGA, M. F.; MALAQUIAS, J. V.
Este trabalho teve como objetivo avaliar o desempenho de clones de seringueira em três locais da região Centro Oeste com diferentes condições ambientais, sendo 73 clones em Goianésia, estado de Goiás, 69 em Planaltina, Distrito Federal e 44 em Pontes e Lacerda, Mato Grosso. O delineamento experimental foi em blocos ao acaso, utilizando o clone RRIM 600 como controle em Goianésia e Planaltina e o clone Fx 3864 em Pontes e Lacerda.
Tipo: Livros
Palavras-chave: Borracha Hevea; Borracha Brasileira; Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127459

Biosseguridade, uma ferramenta de prevenção e saúde: 10 passos importantes para obter qualidade na produção de ovos em pequena escala de produção. Revista do Ovo, ano 7, n. 58, 2020. p. 22-28.
Provedor de dados: 14
Autores: DUARTE, S. C.; VIOLA, T. H.; BRITO, D. M. de.
Tipo: Artigo na mídia
Palavras-chave: Produção de ovos; Biosseguridade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127931

Pandemia afeta profundamente a floricultura.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000989778/pandemia-afeta-profundamente-a-floricultura.html.
Tipo: Artigo na mídia
Palavras-chave: Mercado de flores; Crise econômica; Pequenos agricultores.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123060

Verão: tempo de plantar, colher e plantar outra vez.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000983411/verao-tempo-de-plantar-colher-e-plantar-outra-vez-.html.
Tipo: Artigo na mídia
Palavras-chave: Safra.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129570

Formação do núcleo de conservação in situ de ovinos localmente adaptados do Pantanal : Embrapa Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.
(Embrapa Recursos Genéticos e Biotecnologia. Documentos, 371).
Tipo: Parte de livro
Palavras-chave: Ovino; Genética Animal; Sheep; Animal genetics.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/800894

Minimização de distúrbio de saída em sistema de umidade para linha de alimentação de reator de fermentação sólida com controlador de alimentação direta.
Provedor de dados: 14
Autores: BERTUCCI NETO, V.
Tipo: Resumo em anais e proceedings
Palavras-chave: Controle; Reator.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128341

Choveu pouco e as temperaturas foram altas em março de 2020 na Região Sul de Mato Grosso do Sul.
Provedor de dados: 14
Autores: FIETZ, C. R.; COMUNELLO, E.; FLUMIGNAN, D. L.
Tipo: Folhetos
Palavras-chave: Agrometeorologia; Meteorologia; Clima; Agrometeorology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121530

Amazônia tem mais de um milhão de agricultores.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000982532/amazonia-tem-mais-de-um-milhao-de-agricultores.html.
Tipo: Artigo na mídia
Palavras-chave: Regularização fundiária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129631

RNA na saúde e na agricultura.
Provedor de dados: 14
Autores: LOPES, M. A.
A possibilidade de produzir com rapidez vacinas seguras contra zoonoses ou doenças infecciosas poderá ter enorme impacto na saúde pública e na pecuária.
Tipo: Artigo na mídia
Palavras-chave: Doenças infecciosas; Vacina; Zoonose; RNA.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137928

Sustainable use of seas for food sovereignty.
Provedor de dados: 14
Autores: FOGACA, F. H. dos S.; FURTADO, A. A. L.
Translated by Paulo de Holanda Morais.
Tipo: Parte de livro
Palavras-chave: Food technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128054

Capacidade antioxidante de farinha de caroço de seriguela (Spondias Purpúrea L.)
Provedor de dados: 14
Autores: NASCIMENTO, M. R. F.; SOUZA, V. F. DE; OLIVEIRA, K. C. C. DE; ASCHERI, J. L. R.; MARINHO, A. F.
Tipo: Parte de livro
Palavras-chave: Resíduo de Seriguela; Farinha; Antioxidante; Secagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124173

Programa de melhoramento genético de batata da Embrapa.
Provedor de dados: 14
Autores: EMYGDIO, B. M.; PEREIRA, A. da S.; SILVA, G. O. da; CARVALHO, A. D. F. de; CASTRO, C. M.; AZEVEDO, F. Q.; HIRANO, E.; GOMES, C. B.; BORTOLETTO, A. C.; LOPES, C. A.; RAGASSI, C. F.; CORADIN, J. H.; PINHEIRO, N. L.; DUTRA, L. F.; LOURENÇO JUNIOR, V.; JORGE, R. O.; LIMA, M. F.; PINHEIRO, J. B.; REISSER JUNIOR, C.; MALDONADE, I. R.; CASTRO, L. A. S. de; UENO, B.; KROLOW, A. C. R.; VIZZOTTO, M.; PILON, L.; HEIDEN, G.; REICHERT, L. J.; CARDOSO, E. T.; MELO, P. E.
Programa de Melhoramento Genético da Batata da Embrapa.
Tipo: Artigo na mídia
Palavras-chave: Cultivar; Batata; Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125313

Metodologia de descontaminação e germinação de sementes de Pinus taeda L.
Provedor de dados: 14
Autores: QUISEN, R. C.; DEGENHARDT, J.
O processo de eliminação de micro-organismos que promovem a contaminação na fase inicial do cultivo in vitro é considerado um dos gargalos para a definição de protocolos de micropropagação visando a produção massal de mudas clonais de espécies lenhosas. O sucesso no manejo destes contaminantes depende principalmente da eficácia de métodos de desinfestação do material vegetal (explante), os quais são objeto de estudos que visam determinar procedimentos específicos para cada espécie, com perdas em níveis aceitáveis e aplicáveis nas biofábricas.
Tipo: Folhetos
Palavras-chave: Cultivo in vitro; Pinus Taeda; Germinação; Produção de Sementes.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123930

+Precoce - Eficiência e inovação na cadeia do novilho precoce integrando Pantanal e Cerrado.
Provedor de dados: 14
Autores: BERGIER, I.; ABREU, U. G. P. de; OLIVEIRA, L. O. F. de; TOMAZI, M.; DIAS, F. R. T.; NOGUEIRA, E.; SILVA, J. C. B.
Tipo: Parte de livro
Palavras-chave: Gado de Corte; Agricultura Sustentável; Sustainable agriculture; Cattle breeding.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131201

Identificação do acantocéfalo Neoechinorhynchus buttnerae em plâncton de viveiros de produção de tambaqui (Colossoma macropomum).
Provedor de dados: 14
Autores: BENAVIDES, M. V.; PEREIRA, S. L. A.; CHAGAS, E. C.; MACIEL, P. O.; SOUZA, C. J. H. de.
O tambaqui (Colossoma macropomum) é a segunda espécie de interesse produtivo no Brasil e a primeira em produção na região Norte do País. Em razão da intensificação dos sistemas produtivos, entraves relacionados à ocorrência de doenças parasitárias, principalmente por acantocéfalos, vêm chamando a atenção dos piscicultores em razão das altas infestações registradas.
Tipo: Folhetos
Palavras-chave: Tambaqui.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128447

Tendências para o manejo de bovinos de corte.
Provedor de dados: 14
Autores: DIAS, F. R. T.; MALAFAIA, G. C.; BISCOLA, P. H. N.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128702

Embrapa e os projetos tipo III.
Provedor de dados: 14
Autores: KUNZ, A.; DUARTE, S. C.; WILBERT, C. A.; SUREK, D.; PEREIRA, M. L.
Tipo: Folhetos
Palavras-chave: Embrapa Suínos e Aves; Projetos; Projeto tipo 3; Tecnologia; Inovação; Projeto de Pesquisa; Instituição de Pesquisa; Pesquisa Agrícola; Planejamento de Pesquisa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117196

BRS 400 e BRS 401: novas cultivares de mandioca de mesa com raízes de polpa rosada.
Provedor de dados: 14
Autores: VIEIRA, E. A.; FIALHO, J. de F.; JULIO, L. de; RINALDI, M. M.; OLIVEIRA, C. M. de; FERNANDES, F. D.; ANJOS, J. de R. N. dos; CORTE, J. L. D.
A mandioca, além de ser uma excelente fonte de carboidratos para a alimentação humana, pode se tornar uma fonte de licopeno nas raízes de coloração rosada (Carvalho et al., 2011). O licopeno é um antioxidante, que apresenta ação no combate ao envelhecimento precoce e na prevenção do câncer de próstata (Shami; Moreira, 2004). Nesse contexto, a possibilidade de se disponibilizar raízes de mandioca com licopeno é uma das formas de melhorar a nutrição da população e de agregar valor às cultivares destinadas ao consumo humano. O programa de melhoramento genético de mandioca da Embrapa Cerrados está focado no desenvolvimento de cultivares específicas para uso culinário (cozida, frita, chips, mandioca palito, pré-cozida, massas, entre outras). As cultivares devem...
Tipo: Folhetos
Palavras-chave: Licopeno; Mandioca; Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130644

Recomendações para o aumento da vida útil pós-colheita de raízes de mandioca de mesa minimamente processadas com o processo de vácuo
Provedor de dados: 14
Autores: RINALDI, M. M.; VIEIRA, E. A.; FIALHO, J. de F.
Tipo: Folhetos
Palavras-chave: Mandioca; Processamento Mínimo; Pós-Colheita.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121828

Improvement of an in vitro test for Haemonchus contortus resistance diagnosis in small ruminant (RESISTA-Test©).
Provedor de dados: 14
Autores: ALEMÁN GAINZA, Y.; SANTOS, I. B. dos; FIGUEIREDO, A.; AMARANTE, A. F. T. do; ESTEVES, S. N.; BARIONI JUNIOR, W.; CHAGAS, A. C. de S.
O monitoramento da resistência anti-helmíntica pelo teste de desenvolvimento larvar (TDL) pode ser uma ferramenta para atrasar sua ocorrência nos rebanhos e para preservar a eficácia dos anti-helmínticos. O objetivo deste estudo foi otimizar um teste diagnóstico (RESISTATest©) in vitro da resistência de Haemonchus contortus aos principais anti-helmínticos comercialmente disponíveis no Brasil. A eficácia do tiabendazol (TBZ), levamisol (LEV), ivermectina-monossacárida (IVM-M), monepantel (MPT) e Zolvix® (ZLV) no teste de desenvolvimento larvar (TDL) foi avaliada em isolados de H. contortus susceptível (Echevarria1991 - HcEc91) e resistente (Botucatu - HcBot), em placas de cultura de 24 e 96 poços. Testes complementares foram posteriormente realizados com a...
Tipo: Folhetos
Palavras-chave: RESISTA Test©; Anti helmíntico; Teste diagnóstico; Nematoides gastrintestinais; ODS 2; Objetivo de Desenvolvimento Sustentável; Diagnostico; Resistência; Ovino.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127367

BIOGÁS: energia para as propriedades rurais: programa 41: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o Biogás, uma alternativa para o produtor rural e as agroindústrias aproveitarem os resíduos gerados em suas atividades, de forma sustentável, ambientalmente segura e lucrativa. O pesquisador Rossano Gambeta, da Embrapa Agroenergia, explica como, a partir de um biodigestor, é possível produzir o biogás e os biofertilizantes, de modo a reduzir os gastos com combustíveis e adubos químicos
Tipo: Gravações de som
Palavras-chave: Adubo químico; Biogás; Energia; Propriedade Rural; Biodigestor; Biofertilizante; Combustível.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126141

Algodão transgênico: menos inseticidas, mais produtividade.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000986617/algodao-transgenico-menos-inseticidas-mais-produtividade.html.
Tipo: Artigo na mídia
Palavras-chave: Cotonicultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122197

Compatibilidade entre cultivares de grão-de-bico e o parasitoide de ovos Trichogramma pretiosum.
Provedor de dados: 14
Autores: MICHEREFF FILHO, M.; SEGEDI, E. J. L.; NASCIMENTO, W. M.; CASTRO, M. T. de; SILVA, P. A. da; SOUSA, N. C. de M.
Este trabalho objetivou determinar: i) o nível de parasitismo de Trichogramma pretiosum (Hym.: Trichogrammatidae) em ovos de H. armigera (Lep.: Noctuidae) e ii) a mortalidade desse parasitoide em cultivares de grão-de-bico (Cicer arietinum L.), sob condições de laboratório.
Tipo: Folhetos
Palavras-chave: Cicer Arietinum; Parasito de Planta; Controle Biológico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129456

Sistema de produção de mandioca no Semiárido.
Provedor de dados: 14
2. ed.
Tipo: Livros
Palavras-chave: Mandioca; Cassava.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131107

A diversificação da produção de dona Lila e seu Toinho: Comunidade Centro dos Cocos, São Luís Gonzaga do Maranhão, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; PIRATOBA, D. N. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122833

Ensaio estadual de cultivares de trigo do Rio Grande do Sul, 2015.
Provedor de dados: 14
O sucesso da cultura do trigo depende, entre outros fatores de produção, da cultivar utilizada pelo produtor. Há cultivares mais adaptadas a condições específicas de ambiente e de manejo. Semeaduras em espaçamento, profundidade, densidade populacional e período indicado, bem como investimentos em calagem, fertilização, controle de plantas daninhas, doenças e pragas, não garantem rentabilidade na lavoura se a cultivar escolhida for inadequada. As cultivares de trigo diferem quanto ao potencial produtivo, à qualidade tecnológica e à reação aos estresses bióticos e abióticos. A pesquisa deve estudar o desempenho das cultivares em diferentes regiões e ambientes e gerar informações para a assistência técnica orientar os produtores na escolha das cultivares mais...
Tipo: Livros
Palavras-chave: Cultivar; Trigo; Variedade; Melhoramento Genético Vegetal; Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127991

Aspectos biológicos e etológicos de Chrysoperla externa Hagen, 1861 (Neuroptera: Chrysopidae).
Provedor de dados: 14
Autores: ALMEIDA, R. P. de.
Os aspectos biológicos e etológicos são importantes parâmetros de medição da qualidade de inimigos naturais, na pesquisa ou criação de insetos para uso em controle biológico aplicado. Chrysoperla externa tem sido considerado um importante predador polífago, de hábito canibal, regulador de um grande número de insetos com status de praga da cultura do algodoeiro, entre outras. Este trabalho foi conduzido no laboratório de Entomologia da Embrapa Algodão, Campina Grande, PB, com o objetivo de avaliar algumas características biológicas e comportamentais de C. externa, criados em grupo de três larvas. Os insetos foram alimentados ad libitum com ovos de Ephestia (=Anagasta) kuehniella durante toda pesquisa. Foram avaliadas as fases larvais e larval total, os...
Tipo: Folhetos
Palavras-chave: Algodão; Inseto Para Controle Biológico; Inimigo Natural; Cotton; Biological control agents; Lacewings; Insect biology; Intraspecific competition.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131758

A conservação e o desenvolvimento das sementes crioulas em uma perspectiva interdisciplinar da agrobiodiversidade.
Provedor de dados: 14
Autores: MACHADO, A. T.
Neste capítulo, procurou-se fazer uma breve contextualização sobre a agrobiodiversidade e a importância das variedades locais, tradicionais e crioulas dentro da lógica da agricultura familiar e dos sistemas de produção de base agroecológica. Abordam-se as questões conceituais e as implicações sociais, jurídicas e culturais. Questões relacionadas à conservação on farm com ênfase nos bancos locais são discutidas com relação à sua importância estratégica e aos riscos relacionados com a erosão genética e aspectos ambientais. São abordadas as estratégias participativas no melhoramento de diferentes espécies no campo do agricultor, no qual se envolvem aspectos fundamentais tais como: resgate de diferentes espécies e de diferentes variedades dentro de cada...
Tipo: Parte de livro
Palavras-chave: Conservação de semente; Semente crioula; Comunidade local; Agricultura; Semente.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136221

As inovações de Rosa e Tião para uma boa produção em pequenas áreas: Centro dos Passarinhos, Lago dos Rodrigues, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; GUSMÃO, L. A.; SOUSA, R. C. de.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122814

Crotalárias solteiras ou consorciadas com gramíneas na entressafra para diversificação do sistema de produção.
Provedor de dados: 14
Autores: SILVA, C. A. da; GARCIA, R. A.
Tipo: Resumo em anais e proceedings
Palavras-chave: Cultivo consorciado; Fitomassa; Produtividade de grãos; Sucessão de culturas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126580

BENEFÍCIOS do controle biológico de pragas: programa 42: Sul.
Provedor de dados: 14
Esta semana o Prosa Rural traz um tema imperdível para você: os benefícios do controle biológico de pragas. Segundo dados da Embrapa, cerca de 80% das pragas podem ser controladas pela ação dos inimigos naturais presentes na lavoura de soja, quando se adota as estratégias de Manejo Integrado de Pragas, o MIP. O convidado do programa, o pesquisador Adeney de Freitas Bueno, da Embrapa Soja, explica o que é o MIP e como ele atua para garantir uma produção mais sustentável ambientalmente.
Tipo: Gravações de som
Palavras-chave: Controle Biológico; Inimigo Natural; Praga de Planta; Soja.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126168

Mercado e comercialização.
Provedor de dados: 14
Autores: FLORI, J. E.; RESENDE, G. M. de.
Brasil, México, Índia e Paquistão são os maiores exportadores mundiais de manga, com um total exportado de US$ 1.69 milhões, em 2013. As variedades de manga mais comercializadas nos maiores mercados consumidores do mundo (Estados Unidos e Europa) são Tommy Atkins, Haden, Keitt e Kent. No Brasil, a Tommy Atkins responde por 80% das exportações, enquanto no México 50% das exportações são dessa variedade. As projeções de produção de frutas nacionais até 2024 em relação à 2015 mostram a manga com 25,9% de aumento, atrás apenas do melão, 39,3% e do mamão, 31,2%. Calculando a relação entre a quantidade exportada de frutas e a produção total, verifica-se que a manga representará um percetual apenas menor ao do melão, 16,9% da manga e 34,8% do melão.Os atuais...
Tipo: Parte de livro
Palavras-chave: Manga orgânica; Manga; Produção Orgânica; Comercialização; Mercado; Consumo; Mangoes; Marketing.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130650

Efeito da suplementação sobre a verminose de cordeiras recém-desmamadas.
Provedor de dados: 14
Autores: BENAVIDES, M. V.; GENRO, T. C. M.; SOUZA, C. J. H. de.
Cordeiras recém desmamadas, mantidas em campo nativo, receberam por um mês e meio suplementações com 12 e 18% de proteína bruta para observar os efeitos de uma melhor nutrição na contagem de ovos por grama de fezes (OPG) e no número de medicações requeridas. Além dos tratamentos (12 e 18% PB), houve tratamento controle (sem suplementação). Previamente, os animais receberam suplementação por 14 dias para adaptação. Coletas semanais de fezes e de sangue foram realizadas para monitorar o efeito das suplementações no OPG e no volume globular (VG). A pesagem dos animais foi mensal. Animais com volume globular abaixo de 15% foram medicados para evitar mortalidade (medicação de salvamento). Os resultados mostraram que não houve diferença significativa para ganho...
Tipo: Folhetos
Palavras-chave: Ovino; Cordeiro; Nutrição Animal; Suplemento Protéico; Suplemento Alimentar; Parasitose.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127132

Desenvolvimento de planilha para a escrituração zootécnica de colmeias povoadas com colônias de abelhas africanizadas.
Provedor de dados: 14
Autores: REIS, V. D. A. dos; SALLES, C. A. O.
Apresenta uma planilha que pode contribuir para ampliar e, possivelmente consolidar, o uso da escrituração zootécnica de colmeias povoadas com colônias de abelhas africanizadas no Pantanal e nas outras situações em que a apicultura é desenvolvida no Brasil.
Tipo: Folhetos
Palavras-chave: Apicultura; Abelha Africana; Beekeepers; Bee pollen.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128969

A dendrocronologia como ferramenta.
Provedor de dados: 14
Autores: MATTOS, P. P. de; BRAZ, E. M.
Tipo: Artigo na mídia
Palavras-chave: Dendrocronologia; Espécie Nativa; Crescimento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121393

Studies, methods and experiences. Abstracts.
Provedor de dados: 14
Autores: INTERNATIONAL SYMPOSIUM ON AGRICULTURAL TECHNOLOGY ADOPTION, 2020, Campo Grande, MS.
Technological innovation is a precursor for sustainable development of the Brazilian agriculture and the adoption of technologies is a crucial condition for this process. Based on this premise, the first ?International Symposium on Agricultural Technology Adoption (ISATA): studies, methods and experiences? was conceived. The proposal of this event arose from the need to advance the discussions on the issue of technology adoption, especially from the perspective of farmers and the context in which they operate. Despite the stock of knowledge and technological solutions readily available for farmers, the average technical and economic performance of the Brazilian primary sector still remains far below its potential. Understanding the reasons for this...
Tipo: Anais e Proceedings de eventos
Palavras-chave: Inovação tecnológica; Agricultura; Desenvolvimento Sustentável; Extensão Rural; Tecnologia Agrícola; Transferência de Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121376

Desempenho de linhagens de algodoeiro em ambientes do Cerrado do Brasil - safra 2017/2018.
Provedor de dados: 14
Autores: MORELLO, C. de L.; SUASSUNA, N. D.; SILVA FILHO, J. L. da; PEDROSA, M. B.; SOFIATTI, V.; PERINA, F. J.; CHITARRA, L. G.; ANCELMO, J. L.
No Cerrado brasileiro, o algodoeiro é cultivado em uma grande diversidade de condições edafoclimáticas com diferentes pressões de fatores bióticos, principalmente o ataque de pragas e doenças, além de diferentes épocas de plantio, o que torna de suma importância o ciclo da cultura. Nos últimos anos, a área de produção tem avançado na região do MATOPIBA, e a avaliação de materiais adaptados para esta condição de cultivo é também de grande relevância. Atualmente, o maior problema da cultura do algodão no Cerrado é o custo de produção, e desta forma, para semanter competitivo no mercado internacional, a produção de fibra de qualidade, com elevada produtividade, torna-se fundamental. A incidência de doenças como a ramulária e mancha-alvo, além dos nematoides,...
Tipo: Folhetos
Palavras-chave: Algodão; Variedade; Melhoramento Genético Vegetal; Gossypium Arboreum; Gossypium Herbaceum; Gossypium Hirsutum; Cotton; Variety trials; Plant genetics; Gossypium.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125007

Restauração ecológica e serviços ecossistêmicos na agricultura familiar.
Provedor de dados: 14
Autores: MIURA, A. K.; MOLINA, A. R.; BESKOW, G. T.; GOMES, G. C.; GOMES, J. C. C.; SOARES, M. M.
Tipo: Parte de livro
Palavras-chave: Lei de Proteção da Vegetação Nativa; Cadastro Ambiental Rural; Programa de Regularização Ambiental; Áreas de Proteção Permanente; Reserva Legal; Agricultura Familiar; Vegetação Nativa; Conservação; Preservação da Natureza; Educação Ambiental.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129537

As boas práticas na produção agroecológica da família Furtado: Centro da Zozima, São Luís Gonzaga do Maranhão, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; PIRATOBA, D. N. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122811

Proposta de delimitação político-administrativa do bioma Cerrado como base para um Sistema de Inteligência Territorial Estratégica.
Provedor de dados: 14
Autores: CARVALHO, C. A. de; CASTRO, G. S. A.
O objetivo deste trabalho foi propor, em bases territoriais, um recorte do bioma Cerrado ajustado aos limites político-administrativos das microrregiões homogêneas do IBGE. A finalidade é estabelecer um recorte compatível e ajustável entre os cinco quadros (natural, agrário, agrícola,de infraestrutura e socioeconômico) que sirva de base para a estruturação do Sistema de Inteligência Territorial Estratégica do bioma Cerrado.
Tipo: Folhetos
Palavras-chave: Política territorial; Cerrado; Sistema de Informação Geográfica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127434

COVID-19: o que o avicultor precisa saber.
Provedor de dados: 14
Autores: VAZ, C. S. L.; TREVISOL, I. M.
Tipo: Folhetos
Palavras-chave: Coronavírus; COVID-19; SARS-CoV; Biosseguridade; Síndrome respiratória; Aviary; Avicultura; Bronquite; Granja; Aviário; Aviculture; Coronaviridae; Biosecurity.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121417

Seed point: o mundo da semente: para o algodoeiro arrancar saudável.
Provedor de dados: 14
Autores: GOULART, A. C. P.
Tipo: Artigo na mídia
Palavras-chave: Tratamento de Semente; Fungicida; Algodão; Fungo; Seed treatment; Fungicides; Cotton; Fungi.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125741

Estado de conservação dos butiazais em Tapes e Barra do Ribeiro, Rio Grande do Sul.
Provedor de dados: 14
Autores: COSTA, F. A. da; SOSINSKI JUNIOR, E. E.; BARBIERI, R. L.
Caracterização e mapeamento de butiazais em propriedades privadas; Diversidade florística associada ao manejo dos ecossistema de butiazais; Manejo com a pecuária nos ecossistema de butiazais; Qual o tamanho do butiazal a ser protegido para garantir sua conservação do ponto de vista paisagístico e da biodiversidade?
Tipo: Folhetos
Palavras-chave: Butiá; Conservação; Sensoriamento Remoto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126987

Como será o mercado consumidor de carne bovina em 2040?
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125598

Oídio de trigo: avaliação histórica de linhagens 2020 do programa de melhoramento da Embrapa Trigo.
Provedor de dados: 14
Autores: COSTAMILAN, L. M.; SCHEEREN, P. L.; CAIERAO, E.; CASTRO, R. L. de.
O oídio cosuma ser a primeira doença a aparecer, na safra do trigo. Alta unidade relativa do ar, temperatura amena e períodos sem precipitações pluviais são favoráveis ao desenvolvimento da doença.
Tipo: Folhetos
Palavras-chave: Doença foliar; Trigo; Oídio; Linhagem; Doença de Planta; Safra; Grão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129956

Estudos preliminares sobre colheita e armazenamento de frutos de macaúba.
Provedor de dados: 14
Autores: RINALDI, M. M.; CONCEIÇÃO, L. D. H. C. S. DA; BRAGA, M. F.; JUNQUEIRA, N. T. V.; CARDOSO, A. N.; SÁ, S. F. de.
Tipo: Folhetos
Palavras-chave: Acrocomia Aculeata; Biomassa; Colheita; Armazenamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124806

Importância da reação de resistência das cultivares no manejo integrado para controle da brusone.
Provedor de dados: 14
Autores: NUNES, C. D. M.; MARTINS, J. F. da S.
Entre os estresses bióticos que ocorrem na cultura do arroz, a brusone é a ameaça mais prejudicial à alta produtividade das cultivares de arroz, devido a sua ampla distribuição e a capacidade de sobreviver em uma ampla gama de condições ambientais.
Tipo: Folhetos
Palavras-chave: Controle da Brusone; Brusone; Arroz.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136693

Hortaliça como comprar, conservar e consumir: batata.
Provedor de dados: 14
Autores: MATOS, M. J. F.; LANA, M. M.; SANTOS, F. F. dos; MELO, M. F. de; TAVARES, S. A.
Batata. Como comprar. Como conservar. Como consumir. Dicas. Batata ralada ao forno. Salada fria de batata.
Tipo: Folders
Palavras-chave: Batata; Economia Domestica; Culinária; Solanum Tuberosum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125636

Do Instituto Agronômico do Norte à Embrapa Amazônia Oriental: personagens ilustres, tempo e memória (1939-2019).
Provedor de dados: 14
Esta coletânea tem por objetivo também identificar a razão da homenagem, nem sempre conhecida no presente, implícita na designação de prédios, auditórios, laboratórios e locais especiais na Embrapa Amazônia Oriental.Neste primeiro volume, são contempladas 23 biografias: Adolpho Ducke, Milton de Albuquerque, George Alexander Black, George O?Neill Addison, Alfonso Wisniewski, Batista Benito Gabriel Calzavara, Rubens Rodrigues Lima, Archimar Bittencourt Baleiro, Eurico Pinheiro, José Maria Pinheiro Condurú, Fernando Carneiro de Albuquerque, Italo Claudio Falesi, Tarcísio Ewerton Rodrigues, Vicente Haroldo de Figueiredo Moraes, Hermínio Maia Rocha, Cristo Nazaré Barbosa do Nascimento, Therezinha Xavier Bastos, Carlos Hans Müller, Emerson Peçanha Salimos,...
Tipo: Livros
Palavras-chave: Pesquisador; Historia; Instituição de Pesquisa; Biografia; Instituição Pública.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123931

Reciclagem das cascas de coco verde no contexto da economia circular: briquetagem e pirólise.
Provedor de dados: 14
Autores: MARAFON, A. C.; AMARAL, A. F. C.; SILVA, R. G. C. da; REIS, E. do N.; SOLETTI, J. I.; BISPO, M. D.; MENEZES, A. T. de.
Tipo: Folhetos
Palavras-chave: Coco; Casca; Reciclagem; Economia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129401

Em janeiro, custos de produção aumentam 0,51%.
Provedor de dados: 14
Autores: LANA, M. S.; MARTINS, P. do C.; CARNEIRO, A. V.
No primeiro mês de 2020, o Índice de Custo de Produção de Leite ? ICPLeite / Embrapa aumentou 0,51%. Este foi o quarto aumento consecutivo do índice. Os grupos ligados à alimentação (Produção de volumosos e Concentrado) e a Mão de obra foram os principais responsáveis por esse aumento. No acumulado dos últimos 12 meses, o ICPLeite/Embrapa registra alta de 3,02%. Nesse período a alta foi impulsionada principalmente pelos grupos Concentrado, Sal Mineral, Qualidade do leite e Energia e combustível que apresentaram os maiores incrementos de preços. Já os grupos Reprodução, Produção e compra de volumosos e Mão de obra tiveram deflação e contribuíram para amenizar o aumento no índice. Mais detalhes sobre essas variações por períodos e por grupos, bem como a...
Tipo: Artigo na mídia
Palavras-chave: Qualidade do leite; Sal mineral.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120208

Boa genética garante alta produtividade de ovos caipiras.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000992907/-boa-genetica-garante-alta-produtividade-de-ovos-caipiras.html
Tipo: Artigo na mídia
Palavras-chave: Produção de ovos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123600

17 milhões de CBIO emitidos e registrados na B3.
Provedor de dados: 14
Autores: MORANDI, M. A. B.
Resumo: O CBIO é o Crédito de Descarbonização, algo como uma moeda de carbono. Cada CBIO equivale a uma tonelada de gases de efeito estufa (GEE) que deixaram de ser emitidas em função do uso de biocombustíveis certificados pelo RenovaBio, em substituição aos combustíveis fósseis. O RenovaBio é a Política Nacional de Biocombustíveis, um programa criado pelo Ministério de Minas e Energia e gerenciado pela ANP - Agência Nacional do Petróleo, Gás Natural e Biocombustíveis. A Embrapa Meio Ambiente coordena e, junto com os parceiros ? FEA/Unicamp, LNBR e Agroicone, construiu a RenovaCalc, calculadora e metodologia que permitem a quantificação e certificação dos biocombustíveis no programa.
Tipo: Artigo na mídia
Palavras-chave: Crédito de carbono; Agricultura; Agricultura Sustentável; Biocombustível.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129477

INFORMATIVO Agropecuário de Rondônia: Março/2020: Especial Censo Agropecuário 2017.
Provedor de dados: 14
Tipo: Folhetos
Palavras-chave: Censo Agropecuário.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120809

Consumo de frango aumenta apesar de boatos e preços em alta.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000998157/consumo-de-frango-aumenta-apesar-de-boatos-e-precos-em-alta.html
Tipo: Artigo na mídia
Palavras-chave: Avicultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125122

Predição de características bromatológicas em Arachis pintoi Krap &amp; Greg. via espectroscopia de reflectância do infravermelho próximo.
Provedor de dados: 14
Autores: ATHAYDE, N. B.; MEDEIROS, E. P. de; FONSECA, C. E. L. da; ASSIS, G. M. L. de.
O objetivo foi desenvolver modelos de calibração multivariada para estimar as concentrações de proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), lignina detergente ácido (ADL), matéria seca (MS), digestibilidade in vitro da matéria seca (DIVMS), celulose (CEL) e hemicelulose (HEM) em amendoim forrageiro, bem como validá-los para serem usados como ferramenta eficaz na estimativa de qualidade de novas amostras. Esta publicação está de acordo com os Objetivos de Desenvolvimento Sustentável 2 (Fome Zero e Agricultura Sustentável) e 12 (Consumo e Produção Responsáveis). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas e que tem o...
Tipo: Folhetos
Palavras-chave: Amendoim forrageiro; Forage peanut; Cacahuetes forrajeros; Leguminosas forrajeras; Fitomejoramiento; Espectroscopia de reflectância no infravermelho próximo (NIRS); Espectroscopía del infrarrojo cercano; PLS; Manejo de pasto; Análise multivariada; Análisis de multivarianza; Características bromatológicas; Bromatological traits; Selo ODS 2; Selo ODS 12; Leguminosa Forrageira; Pastagem; Manejo; Recuperação do Solo; Melhoramento Genético Vegetal; Método Estatístico; Forage legumes; Arachis pintoi; Plant breeding; Pasture management; Multivariate analysis; Near-infrared spectroscopy.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126405

Relato da resistência de Euphorbia heterophylla ao herbicida glifosato, inibidor da EPSPs (grupo G), no Brasil
Provedor de dados: 14
Autores: ADEGAS, F. S.; GAZZIERO, D. L. P.; OLIVEIRA JUNIOR, R. S. de; MENDES, R. R.; RODRIGUES, L. J.
Tipo: Artigo na mídia
Palavras-chave: Resistência a Pesticida; Euphorbia Heterophylla; Pesticide resistance.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129075

Estratégias para conservação de recursos genéticos de peixes nativos de interesse econômico.
Provedor de dados: 14
Autores: VILLELA, L. C. V.; KIRSCHNIK, L. N. G.; ALVES, A. L.; VARELA, E. S.; REZENDE, F. P.; TORATI, L. S.; SHIOTSUKI, L.; FREITAS, L. E. L. de; MATAVELI, M.; SCHUCH, A. C.
Para contornar os desafios apresentados e assegurar a viabilidade dos recursos genéticos aquícolas no futuro (tanto de espécies ameaçadas de extinção como de espécies de interesse econômico), é estratégica a adoção de medidas mitigatórias, associadas a programas para conservação genética e recuperação de espécies nativas de peixes. Nesse sentido, esse documento objetiva apresentar um panorama atual sobre desafios, principais estratégias e importância da conservação, além da contribuição da Embrapa para a conservação dos recursos genéticos de peixes nativos de água doce no Brasil.
Tipo: Folhetos
Palavras-chave: Proteina animal; Diversidade genética; Repovoamento; Peixe nativo; Peixe; Recurso Genético; Aquicultura; Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129547

Hortaliça como comprar, conservar e consumir: alho-porró.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Alho-porró. Como comprar. Como conservar. Como consumir. Dicas. Bolo de carne de alho-porró. Alho-porró gratinado.
Tipo: Folders
Palavras-chave: Alho Poró; Economia Domestica; Culinária; Allium Porrum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125624

Hortaliça como comprar, conservar e consumir: milho-verde.
Provedor de dados: 14
Autores: TAVARES, S. A.; MATOS, M. J. L. F.; LANA, M. M.; SANTOS, F. F. dos; MELO, M. F. de.
Milho-verde. Como comprar. Como conservar. Como consumir. Bolo salgado de milho. Torta de milho-verde.
Tipo: Folders
Palavras-chave: Milho Verde; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126000

Avaliação do potencial de prestação de serviços ambientais em sistema plantio direto (SPD).
Provedor de dados: 14
Autores: TURETTA, A. P. D.; HERNANI, L. C.; PRADO, R. B.; FIDALGO, E. C. C.; RALISCH, R.; MARTINS, A. L. da S.
Estima-se que a população mundial em 2030 será de 8,3 bilhões de pessoas, pressionando ainda mais as fontes de energia, água, alimentos, uso da terra e extração mineral, sobretudo em países em desenvolvimento (ROCKEFELLER FOUNDATION..., 2010). Até 2050, a agricultura precisará produzir globalmente 60% a mais de alimentos, e 100% a mais nos países em desenvolvimento (WWAP, 2015). Esse cenário coloca a atividade agrícola em lugar de destaque na agenda global e expande a discussão para além da produção de alimentos, incluindo temas como o seu potencial em gerar outros benefícios aos ecossistemas e à sociedade, partindo-se do conceito de multifuncionalidade da agricultura, que ocorre quando esta desempenha outras funções além do seu principal papel na produção...
Tipo: Folhetos
Palavras-chave: Serviços Ambientais; Agricultura Sustentável; Plantio Direto; Sustainable agriculture; No-tillage; Ecosystem services.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122288

Produção de compósitos a partir dos resíduos da agroindústria do palmito de pupunha.
Provedor de dados: 14
Autores: MAGALHAES, W. L. E.; SÁ, F. P. de; PAULA, C. R. P. de; ARTNER, M. A.; ARANTES, M. S. T.
O desenvolvimento de produtos ecológicos tem sido uma necessidade frente à crescente conscientização ambiental da população e ao aumento da demanda por produtos sustentáveis. Nesse contexto, os biocompósitos têm ganhado notoriedade como uma forma de promover o uso de matérias-primas renováveis e por contribuir para o gerenciamento de resíduos. Os biocompósitos caracterizam-se como um composto formado por dois ou mais materiais, sendo um deles de base biológica, tais como as fibras naturais provenientes da agroindústria ou do processamento de madeira (Leão et al., 2010; Rudin; Choi, 2013). As fibras naturais, além de serem biodegradáveis, renováveis e abundantemente disponíveis, apresentam vantagens econômicas e sociais em relação às fibras sintéticas (e.g....
Tipo: Folhetos
Palavras-chave: Biocompósito; Agroindústria; Polímero; Sustentabilidade; Pupunha; Palmito.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127158

Calagem, adubação e estado nutricional em videiras.
Provedor de dados: 14
Autores: STEFANELLO, L. O.; SCHWALBERT, R. A.; CIOTTA, M. N.; TASSINARI, A.; KULMANN, M. S. de S.; ECKHARDT, D. P.; GABBARDO, M.; SCHUMACHER, R. L.; COSTA, V. B.; CUNHA, W. M. da; MELO, G. W. B. de; BRUNETTO, G.
A área cultivada com videira no Brasil e, especialmente, no Sul do país, como no Rio Grande do Sul (RS) e Santa Catarina (Se), tem aumentado nos últimos anos. Porém, na maioria dos casos os solos são ácidos e possuem baixa fertilidade natural. Por isso, torna- se necessário, quando diagnosticada a necessidade, a aplicação de corretivos da acidez do solo e adubações. Mas, estas práticas devem ser realizadas seguindo as recomendações técnicas oficiais recomendadas para a cultura da videira, pois normalmente afetam a produção e qualidade da uva, bem como do mosto e de seus subprodutos, como o vinho, sucos e espumantes. Considerando esta problemática, no presente capítulo serão apresentadas informações técnicas sobre calagem, adubações e composição nutricional...
Tipo: Parte de livro
Palavras-chave: Adubação de pré-plantio; Correção do solo; Qualidade do mosto; Vitis Vinifera; Produtividade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1144654

Enzimas: produção de lipase por bactéria.
Provedor de dados: 14
Autores: SALUM, T. F. C.
Tipo: Folders
Palavras-chave: Biotecnologia industrial; Biomassa; Bactéria; Fermentação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123115

Fontes de resistência à Phytophthora sojae em linhagens de soja da Embrapa Trigo, em 2018/2019.
Provedor de dados: 14
Autores: COSTAMILAN, L. M.; BERTAGNOLLI, P. F.; CARRÃO-PANIZZI, M. C.; CLEBSCH, C. C.
A podridão-radicular de Phytophthora em soja causa, anualmente, perdas entre um milhão e dois milhões de toneladas de grãosno mundo (Schmitthenner; Dorrance, 2015; Hartman, 2015), principalmente nos Estados Unidos, na China, no Japão, na Argentina, no Brasil e na Austrália.
Tipo: Folhetos
Palavras-chave: Podridão-radicular; Apodrecimento de sementes; Flacidez na radícula; Plântulas; Linhagens de soja; Programa de melhoramento genético da Embrapa Trigo; Podridão-radicular de Phytophthora; Genes de resistência completa Rps; Phytophthora; Soja; Resistência Genética; Doença; Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120161

Guia para identificação de pragas da alface.
Provedor de dados: 14
Autores: MOURA, A. P. de; MICHEREFF FILHO, M.; GUIMARAES, J. A.; LIMA, M. F.; SCHMIDT, F. G. V.; SOUSA, N. C. de M.; LOPES, L. H. R.; RIBEIRO, M. G. P. de M.; SPECHT, A.
Esta publicação, em formato de guia de campo, tem por finalidade auxiliar agricultores, profissionais da assistência técnica e extensão rural, consultores e estudantes da área de Ciências Agrárias, no reconhecimento de insetos e moluscos pragas comumente encontrados nos cultivos de alface e desta forma, ajuda-los na implementação de um programa eficiente de Manejo Integrado de Pragas (MIP), visando a sustentabilidade da cultura em longo prazo e rentabilidade ao produtor.
Tipo: Livros
Palavras-chave: Lactuca Sativa; Praga de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127374

Compostos presentes em extrato metanólico de tecido foliar de erva-mate, por meio da cromatografia gasosa acoplada à espectrometria de massas.
Provedor de dados: 14
Autores: MELO, T. O. de; MARQUES, F. A.; WENDLING, I.; KOPKA, J.; ERBAN, A.; HANSEL, F. A.
A erva-mate (Ilex paraguariensis A. St. Hill.) é uma espécie nativa da Floresta Ombrófila Mista, de grande importância socioeconômica, cultural e ambiental para a região Sul do Brasil, Paraguai e Argentina (Fowler; Sturion, 2000), de ocorrência natural no Brasil, Argentina, Paraguai e em algumas regiões do Uruguai (Oliveira; Rotta, 1985). A erva-mate é ingerida após o preparo de infusões das suas folhas verdes secas ou tostadas a quente ou a frio (Bracesco et al., 2011) e o seu consumo se deve principalmente ao sabor e aos diversos efeitos benéficos à saúde, devido à presença de compostos bioativos como as xantinas (e.g., cafeína) e compostos fenólicos (e.g., ácido clorogênico). Recentemente, a erva-mate vem ganhando destaque como produto de exportação...
Tipo: Folhetos
Palavras-chave: Erva-mate; Tecido foliar; Extrato metanólico; Ilex Paraguariensis; Cromatografia; Espectrometria; Propagação Vegetativa; Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125791

Expressão histoquímica temporal de cultivares de trigo de distinta reação à ferrugem-da-folha.
Provedor de dados: 14
Autores: VEIGA, V. F. da; BIFF, M.; BRAMMER, S. P.
A ferrugem-da-folha, causada pelo fungo Puccinia triticina, é uma doença importante para a triticultura do Sul do Brasil. Nesse contexto, buscamos compreender através de análises histoquímicas, a expressão temporal das cultivares de trigo Toropi (resistente) e IAC 13-Lorena (suscetível) à ferrugem-dafolha. A análise foi realizada na folha bandeira e na fase de espigamento das plantas, sendo determinados quatro tempos pré e após as inoculações do patógeno: 0, 24, 48 e 72 horas. Os compostos histoquímicos utilizados e a relação com as estruturas histológicas e resposta da planta foram: fluroglucina (ligninas), Sudan III (lipídeos totais), cloreto férrico (compostos fenólicos) e cloreto de alumínio (flavonoides). Para cada cultivar foram avaliadas oito...
Tipo: Parte de livro
Palavras-chave: Pesquisa agrária; Ciências ambientais; Puccinia triticina; Ligninas; Lipídios; Flavonoides; Fenóis; Agricultura; Triticum Aestivum.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127196

Hortaliça como comprar, conservar e consumir: bertalha.
Provedor de dados: 14
Autores: TAVARES, S. A.; LANA, M. M.
Bertalha. Como comprar. Como conservar. Como consumir. Dicas. Refogadinho de bertalha com ovo. Torta fingida de bertalha.
Tipo: Folders
Palavras-chave: Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125644

Grupo genético pantaneiro.
Provedor de dados: 14
Autores: FERREIRA, M. B.; GUIDOLIN, D. G. F.; VARGAS JUNIOR, F. M.; REIS, F. A.; COSTA, J. A. A. da; DAL-PONTE VIEIRA, A. C. R.
Tipo: Parte de livro
Palavras-chave: Ovino Pantaneiro; Rendimento de carcaça; Característica de carcaça; Carne ovina; Ovinocultura; Rendimento; Carcaça.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127811

A contribuição da Embrapa Amazônia Ocidental para políticas públicas.
Provedor de dados: 14
Autores: COSTA, J. R. da.
As Políticas Públicas são importantes instrumentos de implementação de justiça social e garantias fundamentais de direito social. O objetivo deste trabalho é apresentar ações da Embrapa, especialmente da Unidade Embrapa Amazônia Ocidental (Manaus-AM), em apoio à formulação e à implementação de Políticas Públicas.
Tipo: Parte de livro
Palavras-chave: Políticas Públicas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125906

Principais doenças do trigo no sul do Brasil: diagnóstico e manejo.
Provedor de dados: 14
Autores: LAU, D.; SBALCHEIRO, C. C.; MARTINS, F. C.; SANTANA, F. M.; MACIEL, J. L. N.; FERNANDES, J. M. C.; COSTAMILAN, L. M.; LIMA, M. I. P. M.; KUHNEM, P.; CASA, R. T.
O trigo (Triticum aestivum L.) pode manifestar diversas doenças que, depen-dendo da sua incidência e severidade, causam perdas econômicas. Doenças têm causas abióticas (ação de agen-tes físico-químicos) ou bióticas. Neste trabalho, serão abordadas doenças bióticas exclusivamente causadas por microrganismos patogênicos. A ocorrên-cia destas doenças requer a presença de três elementos: genótipo hospedeiro suscetível, patógeno compatível e con-dições ambientais favoráveis. Esse do-cumento descreve as principais doenças causadas por vírus, bactérias e fungos na cultura do trigo no sul do Brasil. As doenças são apresentadas a seguir com base em ordem crescente de comple-xidade estrutural dos patógenos: vírus, bactérias e fungos. As doenças fúngicas são...
Tipo: Folhetos
Palavras-chave: Triticum aestivum L; Doenças bióticas; Patógenos; Trigo; Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129989

Herborização e disponibilização de acervo on line.
Provedor de dados: 14
Autores: OLIVEIRA, J. da S.; FALEIRO, F. G.; WALTER, B. M. T.; JUNQUEIRA, N. T. V.
Tipo: Parte de livro
Palavras-chave: Secagem; Prensagem; Herbário.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124049

Calagem, Adubação e estado nutricional na goiabeira serrana (Acca sellowiana)
Provedor de dados: 14
Autores: CIOTTA, M. N.; ROZANE, D. E.; NAVA, G.; NATALE, W.
Tipo: Parte de livro
Palavras-chave: Frutiferas; Acca sellowiana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128290

Hortaliça como comprar, conservar e consumir: agrião.
Provedor de dados: 14
Autores: MELO, M. F. de; TAVARES, S. A.; MATOS, M. J. L. F.; LANA, M. M.; SANTOS, F. F. dos.
Agrião. Como comprar. Como conservar. Como consumir. Sanduíche de agrião e ricota. Salada enriquecida com agrião.
Tipo: Folders
Palavras-chave: Agrião; Economia Domestica; Culinária; Nasturtium Officinale.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125577

ALERTA e manejo contra a peste suína clássica: programa 1: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana o Prosa Rural fala sobre a peste suína clássica: alerta e manejo. A Peste Suína Clássica é uma doença com alto grau de mortalidade entre os animais. A doença é de notificação obrigatória no Brasil e acomete somente suínos; ou seja, não é transmitida ao ser humano ou outras espécies. O Brasil é livre da peste suína clássica em 15 estados e no Distrito Federal, mas em 2018 foram registrados casos no Nordeste do País, o que pode colocar em risco a situação sanitária do Brasil e também a economia baseada na produção e exportação de carne. Participa do programa a médica veterinária Danielle Gava, da Embrapa Suínos e Aves.
Tipo: Gravações de som
Palavras-chave: Doença Animal; Mortalidade Animal; Peste Suína; Produção de Carne.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119513

Propagação clonal por perfilhos em pupunheira.
Provedor de dados: 14
Autores: YOKOMIZO, G. K. I.; KALIL FILHO, A. N.
A pupunheira (Bactris gasipaes Kunth var. gasipaes Henderson) é uma palmeira com mais de um caule, formando uma touceira. Cada caule in- dividualmente é denominado de estipe, e estes, geneticamente, têm as mesmas características do estipe principal. Cada estipe pode ser separado e propagado, formando novas touceiras (Nishikawa et al., 1998; Clement; Bovi, 1999). Após o corte dos estipes mais desenvolvidos e coleta do palmito, ocorre naturalmente a reposição da touceira pelo desenvol- vimento de novos perfilhos, mantendo a cultura perene (Bovi, 1998; Chaimsohn et al., 2002). Os Estados que se destacam na pro- dução deste palmito são: Bahia. Espírito Santo, Goiás, Mato Grosso, Pará, Paraná, Rio de Janeiro, Rondônia, São Paulo e Santa Catarina, segundo IBGE...
Tipo: Folhetos
Palavras-chave: Perfilho; Touceira; Propagação clonal; Palmito; Propagação Vegetativa; Pupunha; Bactris Gasipaes; Manejo; Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125588

PLANEJAMENTO forrageiro.
Provedor de dados: 14
Considerações gerais sobre manejo das forrageiras. Inclui tabela por cultura e por cultivar.
Tipo: Folders
Palavras-chave: Cultivar; Forragem; Pastagem; Forragicultura; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123451

Qualidade e classificação de grãos de milho colhidos e armazenados nas safras 2014/2015, 2015/2016 e 2016/2017.
Provedor de dados: 14
Autores: PIMENTEL, M. A. G.
O crescimento na produção nacional de grãos vem acompanhado da crescente exigência dos consumidores quanto a padrões mais rígidos de qualidade dos alimentos. O conhecimento dos padrões de qualidade, assim como fatores que os afetam negativamente, são esforços no aprimoramento das boas práticas pós-colheita que visam atender às necessidades e agregar valores aos grãos no processo de comercialização, trazendo vantagens econômicas tanto para os produtores quanto para as indústrias. Os objetivos do trabalho foram avaliar a qualidade física e determinar a tipificação de amostras de grãos de milho produzidos em primeira safra (safra verão), segunda safra e em armazéns das principais regiões produtoras durante três anos agrícolas. Assim, foram coletadas 342...
Tipo: Folhetos
Palavras-chave: Sustentabilidade; Selo ODS 12; Agenda 2030; Objetivo de desenvolvimento sustentável; Zea Mays; Grão; Armazenamento; Qualidade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126610

Implantação e manejo da gliricídia (Gliricidia sepium) como mourão vivo em cercas produtivas.
Provedor de dados: 14
Autores: SA, C. O. de; SA, J. L. de; MANOS, M. G. L.; SIQUEIRA, E. R. de; TAVARES, E. D.; OLIVEIRA, T. C. de; ANJOS, J. L. dos; TEODORO, M. S.
Tipo: Folhetos
Palavras-chave: Gliricidia; Leguminosa; Planta Para Cerca Viva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129407

B12: mais biodiesel no diesel, menos poluentes no ar.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000984327/b12-mais-biodiesel-no-diesel-menos-poluentes-no-ar.html.
Tipo: Artigo na mídia
Palavras-chave: Biocombustível.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121475

Efeito do uso de cobertura plástica sobre pessegueiros na qualidade pós-colheita dos frutos.
Provedor de dados: 14
Autores: FLORES CANTILLANO, R. F.; PEREIRA, J. F. M.; REISSER JUNIOR, C.; RIBEIRO, J. A.; SEIFERT, M.
As coberturas plásticas foram inicialmente utilizadas no cultivo de flores e hortaliças. Em frutas de clima temperado é uma técnica pouco utilizada. Essa técnica pode minimizar os efeitos adversos do clima, bem como reduzir a incidência de doenças sobre a planta e frutos. Também ajuda a reduzir o uso de agrotóxicos no pomar, permitindo a produção em sistemas ecológicos ou orgânicos. O objetivo deste trabalho foi avaliar o efeito do uso de coberturas plásticas em plantas de pessegueiros sobre a qualidade pós-colheita dos frutos, após diversos períodos de armazenamento refrigerado. Foram utilizados pêssegos da cultivar Maciel provenientes de plantas de pessegueiro sem (T1) e com (T2) cobertura plástica. Após a colheita, os pêssegos de ambos os tratamentos...
Tipo: Folhetos
Palavras-chave: Pêssego; Plasticultura; Pós-Colheita; Cultivo Protegido.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121280

Guia para identificação de pragas do morangueiro.
Provedor de dados: 14
Autores: MICHEREFF FILHO, M.; SCHMIDT, F. G. V.; ZAWADNEAK, M. A. C.; SOUSA, N. C. de M.; GUIMARAES, J. A.; MOURA, A. P. de; OLIVEIRA, C. M. de; TORRES, J. B.; SANTOS, R. S. S. dos; RIBEIRO, M. G. P. de M.; LOPES, L. H. R.
Esta publicação, em formato de guia de campo, tem por finalidade auxiliar agricultores, profissionais da assistência técnica e extensão rural, consultores em hortifrúti e estudantes da área de Ciências Agrárias, no reconhecimento dos ácaros, insetos e moluscos pragas comumente encontrados nos cultivos de morangueiro, no Planalto Central brasileiro.
Tipo: Livros
Palavras-chave: Morango; Praga de Planta; Fragaria spp.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124694

Emissões de gases de efeito estufa do solo em diferentes sistemas de produção animal no cerrado brasileiro.
Provedor de dados: 14
Autores: ARAUJO, A. R. de; TOMAZI, M.; MACEDO, M. C. M.; ALMEIDA, R. G. de; FERREIRA, A. D.; DIEHL, L. de O.; MELO, T.
As emissões de gases de efeito estufa (GEEs) estão associadas principalmente a mudanças no uso da terra no Brasil, especialmente, na conversão de florestas em pastagens ou sistemas agrícolas. O objetivo deste estudo foi avaliar as emissões de GEEs do solo, metano (CH4), dióxido de carbono (CO2) e óxido nitroso (N2O), em três sistemas de produção. O estudo foi realizado no bioma Cerrado, em Mato Grosso do Sul, em um Latossolo Vermelho Distroférrico e em uma zona de transição climática entre Cfa e Aw tropical úmido. Os sistemas avaliados foram: pastagem extensiva de Brachiaria decumbens cv. Basilisk sem fertilização de manutenção; integração lavoura-pecuária com Brachiaria brizantha cv. BRS Piatã e fertilização de manutenção anual (ILP); e integração...
Tipo: Parte de livro
Palavras-chave: Emissão de gás; Efeito Estufa; Solo; Sistema de Produção; Animal; Cerrado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131339

Poverty and development.
Provedor de dados: 14
Autores: COSTA, P. da; COSTA, J. R. da; SILVA, A. P. da; CAVALCANTE, A. C. R.; WANDELLI, E. V.; TAVARES, E. D.; BIANCHINI, F.; BELTRAO, S. L. L.
This book is about poverty eradication, addressed in the first United Nations (UN) Sustainable Development Goal (SDG). Poverty is considered the main challenge to achieving global targets. This SDG aims to end poverty in all its forms everywhere.
Tipo: Parte de livro
Palavras-chave: Desigualdade social; Erradicação da pobreza; Pobreza; Desenvolvimento Sustentável; Agricultura Familiar; Segurança Alimentar; Rural poverty; Poverty.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122561

Resultados Avaliação Nacional de Vinhos 2020: os destaques da safra das safras.
Provedor de dados: 14
Autores: ASSOCIAÇÃO BRASILEIRA DE ENOLOGIA; EMBRAPA UVA E VINHO.
Participaram desta edição 56 empresas vinícolas, dos estados do RS, SC, BA e SP. No total foram inscritas 395 amostras, nas categorias Vinho Base para Espumante (I) - 66 amostras; Branco Fino Seco Não Aromático (IIA - 28 amostras e IIB -13 amostras), Total - 41 amostras; Branco Fino Seco Aromático (IIIA - 21 amostras e IIIB - 14 mostras), Total - 35 amostras; Rosé Fino Seco (IV) - 17 amostras; Tinto Fino seco Jovem (V) - 34 amostras; Tinto Fino Seco (VIA - 182 amostras e VIB - 20 amostras), Total - 202 amostras.
Tipo: Folhetos
Palavras-chave: Avaliação; Brasileira; Nacional; Vinho; Safra.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128766

Emissões de gases de efeito estufa (GEE) em sistemas de produção de cordeiros para carne no sul do Brasil.
Provedor de dados: 14
Autores: MONTEIRO, A. L. G.; SILVA, C. J. A. da; BERNDT, A.; RIBEIRO FILHO, H. M. N.; RUGGIERI, A. C.; BAYER, C.; CARVALHO, P. C. de F.; DEISS, L.; PIVA, J. T.; GENRO, T. C. M.
Esse projeto contemplou avaliações de emissão de metano entérico de ovinos e de fluxo de gases do solo, buscando mensurar e conhecer a dinâmica dos fluxos de gases em sistemas de produção da espécie ovina, mais comumente utilizados por produtores, a fim de calcular, a médio prazo, o balanço de carbono e o potencial de aquecimento global líquido em sistemas de produção de ovinos. Referente a emissão de metano dos animais, objetivou-se avaliar os diferentes sistemas de terminação de cordeiros em pastagem, como e se interferem na emissão de metano por ovinos e produzir valores de emissão para diferentes categorias animais (cordeiros ? ao redor de 60 dias de idade e 25 kg de peso médio - ovelhas desmamadas, ovelhas em lactação e ovelhas gestantes).
Tipo: Parte de livro
Palavras-chave: Gases Efeito Estufa; Gases metano entérico; Aquecimento global liquido; Balanço de carbono; Ovino; Pastagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131234

APPLESHOW: sistema de informação geográfica para mapeamento da qualidade de maçã.
Provedor de dados: 14
Autores: LONGO, D. R.; MOREIRA, G. C.; BAZZI, C. L.; GEBLER, L.; SCHENATTO, K.
A agricultura de precisão vem se destacando nos últimos anos como a maneira de proporcionar ao produtor rural uma nova forma de gerenciamento da sua atividade, proporcionando melhores opções de tomada de decisão em busca de melhores relações de custo e benefício. A fruticultura brasileira, de um modo geral, era uma atividade que estava atrasada em relação ao uso da agricultura de precisão, principalmente se comparado às culturas de grãos, uma vez que os produtores careciam de softwares de apoio à tomada de decisão, dentre outras necessidades.
Tipo: Folhetos
Palavras-chave: Fruticultura de precisão; Mapeamento agrícola; Sistema de Informação Geográfica (SIG); Maçã; Agricultura de Precisão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120851

IMPACTO das cinzas de queimadas no solo, na água e na vida humana: programa 28: Centro-Oeste/Sudeste.
Provedor de dados: 14
Esta semana, o Prosa Rural fala sobre o impacto das cinzas de queimadas no solo, na água e na vida das pessoas. Cientistas concluíram que a presença das cinzas das queimadas altera a composição química do solo. E quando ocorre o escoamento superficial após uma chuva, substâncias presentes nas cinzas atingem as águas subterrâneas e superficiais, contaminando-as. Mesmo diante desses problemas, o fogo continua sendo utilizado na agricultura, trazendo sérias consequências. Convidamos o pesquisador Eduardo Cyrino pra falar sobre o assunto.
Tipo: Gravações de som
Palavras-chave: Cinza; Queimada; Composição Química; Escoamento; Fogo; Solo; Fires; Chemical composition; Soil.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124102

ENGORDA de bovinos em semiconfinamento na entressafra: programa 22: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana mostra uma alternativa de Integração Lavoura-Pecuária para regiões com riscos climáticos, para a segunda safra de verão, em sistema sequeiro no Cerrado. Ao promover a engorda de bovinos por meio de forrageira consorciada com o milho ou sobressemeada na soja, o sistema "Boi Safrinha" maximiza o uso da terra e aumenta a rentabilidade do sistema de produção. O convidado para falar sobre o sistema é o pesquisador Lourival Vilela, da Embrapa Cerrados.
Tipo: Gravações de som
Palavras-chave: Semiconfinamento; Forrageira consorciada; Engorda; Bovino; Entressafra; Risco Climático.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122755

Pastagens: condicionantes econômicos e seus efeitos nas decisões de formação e manejo.
Provedor de dados: 14
Autores: PEREIRA, M. de A.; COSTA, F. P.; MONTAGNER, D. B.; EUCLIDES, V. P. B.; ARAUJO, A. R. de; BARBOSA, R. A.; SOUZA, J. A. B. A.
Nesta publicação, aspectos teóricos e práticos são abordados de forma ampla, permitindo ao leitor não apenas entender as questões econômicas associadas às pastagens, mas, sobretudo, de pô-las em prática. Uma série de métodos e técnicas são apresentados, oferecendo diversas alternativas de análise para atender as necessidades de produtores com perfil e nível gerencial diferenciados.
Tipo: Folhetos
Palavras-chave: Carne bovina; Custos; Pastagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123956

Intensificação agropecuária no Cerrado: crescimento do eucalipto em ILPF sob diferentes níveis de investimento tecnológico.
Provedor de dados: 14
Autores: CAMPANHA, M. M.; COSTA, T. C. e C. da; GONTIJO NETO, M. M.; RESENDE, A. V. de; SIMÃO, E. de P.; BORGHI, E.; OLIVEIRA, A. C. de; KÁLITA, L.
A publicação apresenta o crescimento inicial do componente florestal e a estimativa de produção futura, constituindo a terceira parte desta série de publicações. O trabalho vem sendo conduzido no formato de Unidade de Referência Tecnológica (URT), na Fazenda Lagoa dos Currais (Curvelo-MG), em condição típica de aptidão limitada por períodos de déficit hídrico no solo. Procurouse validar uma abordagem de manejo racional dos recursos naturais e do uso de insumos externos, conciliando aspectos técnicos e econômicos. Aliada ao compromisso de alcance das metas da Agenda 2030, esta pesquisa agropecuária também atende aos Objetivos do Desenvolvimento Sustentável (ODS), contribuindo para o cumprimento da meta 2.4 do ODS 2 (Fome Zero e Agricultura Sustentável) e da...
Tipo: Folhetos
Palavras-chave: Pastagem degradada; Recuperação; Sustentabilidade; Selo ODS 15; Agenda 2030; Objetivo de desenvolvimento sustentável; Selo ODS 2; Sistema de Cultivo; Lavoura; Pecuária; Fertilidade do Solo; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126207

Avaliação dos viveiros produtores de mudas florestais nativas de Rondônia.
Provedor de dados: 14
Autores: RONQUIM, C. C.; ALVAREZ, I. A.; CIPRIANI, H. N.; SIMONETTI, J. C.
O objetivo deste trabalho foi gerar um diagnóstico sobre a produção atual de mudas nativas no estado de Rondônia, abrangendo questões estruturais, técnicas e socioeconômicas, além de analisar a infraestrutura disponível para a produção de mudas nativas.
Tipo: Folhetos
Palavras-chave: Recuperação de terras; Restauração floresta; Sementes; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127112

Cana-de-açúcar: variedade de cana-de-açúcar tolerante à seca.
Provedor de dados: 14
Autores: MOLINARI, H. B. C.
TC 178.
Tipo: Folders
Palavras-chave: Modificação genética; Biomassa; Cana de Açúcar; Seca.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123220

Evolução do uso e desmatamento evitado na Terra Indígena Kaxinawá Nova Olinda, Feijó, AC, Brasil.
Provedor de dados: 14
Autores: AMARAL, E. F. do; OLIVEIRA, M. V. N. d'; MELO, A. W. F. de; OLIVEIRA, C. H. A. de; HAVERROTH, M.
Este fôlder mostra a síntese dos resultados para estabelecimento de níveis de referência à Terra Indígena Kaxinawá Nova Olinda (TIKNO) e indica caminhos para uma estratégia de alinhamento das emissões evitadas em uma terra protegida.
Tipo: Folders
Palavras-chave: Servicios ecosistémicos; Sistema de Incentivos a Serviços Ambientais (Sisa); ISA Carbono; Níveis de referência; Uso de la tierra; Efecto invernadero; Gases de invernadero; Reservorios de carbono; Pueblos indígenas; Povos indígenas; Terra Indígena Kaxinawá de Nova Olinda (TIKNO); Feijó (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Uso da Terra; Efeito Estufa; Carbono; Políticas Públicas; Land use; Greenhouse effect; Greenhouse gases; Carbon sinks; Indigenous peoples; Public policy; Ecosystem services.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121675

Impacto do uso de óleos essenciais na qualidade microbiológica e sensorial da alface.
Provedor de dados: 14
Autores: MACHADO, T. F.; GARRUTI, D. dos S.; SILVEIRA, M. R. S. da; ARAUJO, I. M. da S.; VARELA, M. de S.; JESUS FILHO, C. A. de.
Os óleos essenciais (OEs) de plantas são geralmente reconhecidos como seguros e dotados de ampla atividade antimicrobiana. Neste estudo, três soluções (cloro a 200 ppm, OEs de folhas de capim-limão e folhas de alecrim-pimenta a 750 ppm e 1.000 ppm, respectivamente) foram comparadas em termos de sua eficácia contra a microbiota natural da alface. Foi ainda avaliado o impacto do uso dos óleos na intensidade de sabor estranho ao produto e na aceitabilidade sensorial.
Tipo: Folhetos
Palavras-chave: Lactuca Sativa; Óleo Essencial; Segurança Alimentar; Qualidade; Lactuca sativa var. crispa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122132

Como deverá ser a comercialização na cadeia produtiva da carne bovina em 2040?
Provedor de dados: 14
Autores: DIAS, F. R. T.; BISCOLA, P. H. N.; MALAFAIA, G. C.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Carne bovina; Bovino; Bovinocultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125665

Amostragem e diagnose foliar.
Provedor de dados: 14
Autores: VELOSO, C. A. C.; ARAUJO, S. M. B.; VIÉGAS, I. de J. M.; RODRIGUES, J. E. L. F.
Tipo: Parte de livro
Palavras-chave: Diagnose foliar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127239

Metodologia científica: determinação do rendimento de produção de etanol de grãos de milho por via seca em escala laboratorial.
Provedor de dados: 14
Autores: CARDOSO, W. S.; PAES, M. C. D.; DIAS, S. R.; CAMPOREZI, J. D.; MODOLO, M. U.; PINHEIRO, F. de A.
A metodologia descrita nesta publicação foi desenvolvida para determinar o rendimento de produção de etanol em amostras de grãos de milho em condições de bancada, através do processo via seca, por meio de sacarificação e fermentação simultâneas (SSF), permitindo diferenciar genótipos quanto à qualidade para produção de etanol. O processo representa o mais frequentemente utilizado nas usinas de etanol de milho em funcionamento no Brasil.
Tipo: Folhetos
Palavras-chave: Bioenergia; Recurso Energético; Rendimento; Produção; Zea Mays.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126607

Offsetting greenhouse gas (GHG) emissions through croplivestock-forest integration.
Provedor de dados: 14
Autores: SOUZA, K. W. de; PULROLNIK, K.; GUIMARAES JUNIOR, R.; MARCHAO, R. L.; VILELA, L.; CARVALHO, A. M. de; MACIEL, G. A.; MORAES NETO, S. P. de; OLIVEIRA, A. D. de.
Tipo: Folhetos
Palavras-chave: Integração lavoura pecuária floresta; ILPF; Efeito Estufa; Gás; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124567

Hortaliça não é só salada. Carne suína.
Provedor de dados: 14
Autores: LANA, M. M.; FEDDERN, V.
Hortaliça também combina com carne suína. Picadinho de filé mignon de porco com repolho. Pernil de porco com couve chinesa. Lombo de porco com quiabo e angu.
Tipo: Folders
Palavras-chave: Porco Tipo Carne; Hortaliça; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129096

Economia para além dos custos: aplicação da análise de sensibilidade para a tomada de decisão agropecuária.
Provedor de dados: 14
Autores: KINPARA, D. I.
A Economia Rural é um ramo da ciência Econômica que tem um arsenal de ferramentas de análise que não se limitam aos custos de produção. A despeito da importância dos custos, existem análises que fornecem informações mais completas. Assim, é preciso lançar mão de outras análises complementares que ajudem a extrair as informações necessárias para uma tomada de decisão técnica e racional. A dificuldade é não tornar a ferramenta mais importante que a informação. A ideia por trás da análise de sensibilidade é bastante simples e, por isso, elegante. Ela permite combinar diferentes elementos e diferentes grandezas. Ela apresenta o resultado de forma inteligível, sem necessidade de valores de referência para interpretá-lo. A intenção do presente manuscrito é a de...
Tipo: Folhetos
Palavras-chave: Avaliação econômica; Análise de sensibilidade; Economia Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130786

Identificação e manejo de pragas do cafeeiro (Coffea canephora).
Provedor de dados: 14
Autores: COSTA, J. N. M.; FONSECA, A. S. da; FREIRE, T. C.; LIMA, A. P. C.
Esta obra apresenta os principais sintomas, fatores predisponentes e medidas de manejo para sete pragas da cultura do café. Além de conter lista atualizada e revisada dos principais grupos químicos recomendados para o manejo dessas enfermidades e informações para eventuais medidas para controle de intoxicações com esses produtos.
Tipo: Parte de livro
Palavras-chave: Coffea Canephora; Praga de Planta; Identificação; Manejo; Plant pests; Pest identification; Control methods; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126497

Seleção entre e dentro de progênies de meios-irmãos de cajueiro via REML/BLUP.
Provedor de dados: 14
Autores: MELO, D. S.; VALE, J. C. do; MACHADO, I. P.; VIDAL NETO, F. das C.; BARROS, L. de M.
A estratégia para a obtenção de clones no programa de melhoramento genético do cajueiro da Embrapa Agroindústria Tropical é avaliar tanto genótipos prospectados em pomares comerciais quanto indivíduos selecionados via melhoramento populacional. Assim, o objetivo do trabalho foi identificar progênies de meio-irmãos e indivíduos agronomicamente superiores, dentro das progênies, para subsidiar a etapa posterior do programa.
Tipo: Folhetos
Palavras-chave: Índice de seleção genético; Anacardium Occidentale; Melhoramento Genético Vegetal; Anacardium.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120815

Impacto do uso de óleos essenciais na qualidade microbiológica e sensorial da cenoura.
Provedor de dados: 14
Autores: MACHADO, T. F.; GARRUTI, D. dos S.; SILVEIRA, M. R. S. da; VARELA, M. de S.; JESUS FILHO, C. A. de.
O risco de subprodutos indesejáveis &amp;#8203;&amp;#8203;da desinfecção com cloro em indústrias de produtos minimamente processados, juntamente com sua eficácia limitada, levou à busca de agentes alternativos. O objetivo deste estudo foi avaliar a eficácia dos óleos essenciais de capim-limão e alecrim-pimenta no controle da microflora natural de cenoura minimamente processada e, ao mesmo tempo, considerar seu impacto nas propriedades organolépticas do produto. Contudo, o uso de óleos essenciais de capim-limão e alecrim-pimenta resultou em cenouras minimamente processadas de baixa aceitabilidade, não sendo um tratamento recomendado nas concentrações testadas.
Tipo: Folhetos
Palavras-chave: Quality; Safety; Disinfection in fresh-cut industries; Daucus Carota; Cenoura; Qualidade; Segurança Alimentar; Daucus carota subsp. sativus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125690

ARAUCÁRIA com produção precoce de pinhão: programa 21: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a araucária com produção precoce de pinhão, tecnologia desenvolvida pela Embrapa em parceria com a Universidade Federal do Paraná. O pesquisador Ivar Wendling, da Embrapa Florestas, conta que essa técnica, que usa o método de enxertia, reduz significativamente o tempo em que a árvore começa a produzir pinhão, bem como possibilita árvores de porte reduzido, para instalação de pomares, nas propriedades rurais. Para saber mais, e ainda conhecer o sucesso da produção de pinhão precoce no município de Bituruna, no Paraná, não perca o Prosa Rural.
Tipo: Gravações de som
Palavras-chave: Araucária; Enxerto; Pinhão; Produção; Propriedade Rural; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122779

Covid-19: o que o produtor de leite precisa saber.
Provedor de dados: 14
Autores: PEGORARO, L. M. C.; VAZ, C. S. L.; DERETI, R. M.; ALMEIDA, L. L. de; SOUZA, G. N. de.
O que são coronavírus? COVID-19 e a pecuária leiteira; Fatores importantes para prevenção da COVID-19; Orientações gerais.
Tipo: Folhetos
Palavras-chave: Covid-19; Coronavírus; Leite; Doença; Vírus; Rebanho; Gado Leiteiro; Biossegurança; Higiene; Produção Leiteira; Ordenha.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123163

Recomendações para compras, armazenamento e consumo de frutas e hortaliças.
Provedor de dados: 14
Autores: CAMARA, F. M.; FERREIRA, M. D.; DURIGAN, M. F. B.
Tipo: Folhetos
Palavras-chave: COVID 19; Isolamento social; Frutas e hortaliças.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122781

Projeto Carne Carbono Neutro: tutorial para acesso ao banco de dados geoespaciais.
Provedor de dados: 14
Autores: NOGUEIRA, S. F.; ALMEIDA, R. G. de; SILVA, G. B. S. da; ALMEIDA, E. G. de.
Resumo: A publicação traz informações sobre o projeto Carne Carbono Neutro (CCN) visa atestar, mediante um protocolo parametrizável e auditável, que a produção de carne bovina em sistemas de integração silvipastoril (pecuária-floresta, IPF) ou agrossilvipastoril (lavourapecuária- floresta, ILPF) proporciona a neutralização das emissões de metano entérico, bem como melhor conforto térmico aos animais em pastejo. O objetivo é validar o protocolo de produção de carne com neutralização das emissões de metano entérico que também incorpora diretrizes para o adequado manejo da pastagem e para produção de carne de qualidade (Protocolo CCN).
Tipo: Folhetos
Palavras-chave: Gado de Corte; Agrossilvicultura; Metano; Beef cattle; Agroforestry; Beef quality.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127359

COMO iniciar um criatório comercial de caititu ou cateto: programa 11: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre como o produtor pode iniciar um criatório comercial de caititu, também conhecido como cateto, em todas as regiões do País. Ao acompanhar a pesquisadora Natália Inagaki de Albuquerque, da Embrapa Amazônia Oriental, o ouvinte vai conhecer as características desse animal silvestre da fauna brasileira, relacionadas, entre outras, à alimentação, sanidade e reprodução. O programa também aborda a legislação pertinente para a criação de animais silvestres.
Tipo: Gravações de som
Palavras-chave: Animal Selvagem; Legislação; Produtor; Queixada; Criação em Cativeiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121512

Espécies de peixes ornamentais capturados pela pesca no estado do Amapá.
Provedor de dados: 14
Autores: TAVARES-DIAS, M.
A aquariofilia é um passatempo que resultou na expansão do comércio de peixes ornamentais, tanto de água doce como marinhos, em mais de cem países. Essa é uma indústria multimilionária em muitos países. Além disso, o comércio de peixes ornamentais oferece oportunidades de empregos diretos e indiretos para milhares de pessoas na Amazônia, como também em outros países em desenvolvimento. Na Amazônia brasileira, há indícios de que a pesca de peixes ornamentais iniciou-se na década de 1950, com o cardinal. Anualmente, dezenas de espécies são exportadas para o exterior provenientes dos estados do Pará, Amazonas e Amapá. Porém, o estado do Amapá tem pouca contribuição na captura de peixes ornamentais para exportação, como mostra esta primeira publicação sobre a...
Tipo: Folhetos
Palavras-chave: Peixe de Água Doce; Animal Aquático; Cadeia Produtiva; Mercado Produtor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127796

Guaraná, a história de um produto de grande potencial econômico: ensaios e perspectivas da transferência de tecnologia agroindustrial.
Provedor de dados: 14
Autores: MERIGUETE, I. L. de A. V.; ARAÚJO JÚNIOR, D. P.; MOURA, J. M. P.; SEVALHOE. de S.; SILVA, C. G. N. da; ASTOLFI FILHO, S.
Este estudo apresenta uma compilação histórica do guaraná (Paullinia cupana var. sorbilis) que vai do século XVII à atualidade. O foco é sua potencialidade bioeconômica transregional, dada a capacidade de adaptação da cultura nas Regiões Nordeste e Centro-Oeste, além da Região Norte. O Brasil é o único produtor mundial de guaraná, que é usado como insumo básico em diversos segmentos de mercado como as indústrias de fármacos, químicos, cosméticos, bebidas, refrigerantes e concentrados. O estudo histórico parte dos usos terapêuticos da planta por comunidades tradicionais que habitam no interior do estado do Amazonas, valorizadas pelos viajantes que desceram e subiram os rios amazônicos classificando e comercializando para seus países plantas nativas. O...
Tipo: Parte de livro
Palavras-chave: Tecnologia agroindustrial; Guaraná; Paullinia Cupana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1161587

Anais: resumos dos trabalhos.
Provedor de dados: 14
Autores: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 24., 2019, Brasília, DF.
Editores técnicos: Priscila Grynberg, Érika Valéria Saliba Albuquerque Freire, Joao Batista Tavares da Silva, Leila Maria Gomes Barros e Natália Florêncio Martins.
Tipo: Livros
Palavras-chave: Recursos genéticos; Estudante; Biotecnologia; Controle Biológico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121885

Trigo BRS Atobá: excelência em qualidade.
Provedor de dados: 14
Autores: BASSOI, M. C.; FOLONI, J. S. S.; SILVA, S. R.
2. ed.
Tipo: Folders
Palavras-chave: Variedade; Trigo; Cultivars; Wheat.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124076

Hortaliça não é só salada. Sopa fria.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com sopa fria. Gazpacho. Sopa de couve-flor. Sopa de beterraba com laranja.
Tipo: Folders
Palavras-chave: Hortaliça; Culinária; Economia Domestica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129102

Ponto adequado de colheita de azeitonas para produção de azeites de elevada qualidade.
Provedor de dados: 14
Autores: JORGE, R. O.; SCHILD, P. M.; COSTA, V. B.; DIAS, C. S.; SILVA, J. P. DA.
A determinação da data de colheita com base na evolução da maturação do fruto é fundamental para a obtenção de azeites de qualidade, e deve realizar-se no momento ótimo de maturação, ou seja, quando os frutos apresentam a máxima quantidade de gordura, com as melhores características. Visto isso, o objetivo deste trabalho foi estimar o ponto adequado de colheita de azeitonas para produção de azeites de elevada qualidade, no município de Pinheiro Machado, RS. O delineamento experimental foi inteiramente casualizado, com esquema fatorial composto por cinco cultivares (?Arbequina?, ?Arbosana?, ?Koroneiki?, ?Frantoio? e ?Coratina?) e quatro épocas de colheita (5 x 4), com as análises em triplicata e os resultados submetidos a análise estatística, realizada por...
Tipo: Folhetos
Palavras-chave: Oliveira; Azeite; Azeitona; Época de Colheita; Colheita.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1134708

Manual para gestão da água e de resíduos do processamento de peixes.
Provedor de dados: 14
Autores: LUIZ, D. de B.; SANTOS, V. R. V. dos; LIMA, L. K. F. de; FRITZ, A. R. M.; BRIGIDA, A. I. S.; SOUZA, A. L. M. de; MUÑOZ, A. E. P.; FURTADO, A. A. L.; MESQUITA, E. de F. M. de; PONSANO, E. H. G.; GUIMARÃES, J. de T.; NAVAL, L. P.; RODRIGUES, L. G. G.; IWASHITA, M. K. P.; CHICRALA, P. C. M. S.; MOREIRA, R. de F. P. M.; BORGHESI, R.; ALVES, R. R.; MARTO, V. C. de O.
O Manual para gestão da água e de resíduos do processamento de peixes é uma publicação técnica que aborda de forma organizada e didática duas questões fundamentais para gestão das indústrias de processamento de pescados nos tempos atuais: consumo de água e geração de resíduos. Para isso, reunimos uma equipe multidisciplinar com conhecimento em legislação, produção e sanidade de peixes, processamento de alimentos, melhoria de processos industriais, microbiologia, economia e estatística. Esse contexto ganha relevância diante da frequência com que diversas regiões no planeta têm sofrido com a escassez de água e com a contaminação química e orgânica dos corpos hídricos, em razão do descarte incorreto de resíduos e efluentes gerados nas indústrias. O foco no...
Tipo: Livros
Palavras-chave: Pesca Industrial; Tecnologia de Alimento; Recurso Hídrico; Processamento; Produto Derivado de Pescado; Água; Resíduo; Industrialization; Fish; Water; Processing residues; Fisheries management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127919

Mais vale um dado duvidável na mão do que bois engordando no pasto?
Provedor de dados: 14
Autores: MEDEIROS, S. R. de.
No último dia 30 de janeiro, em São Paulo, foram apresentados os resultados de dois estudos encomendados pelo Instituto Escolhas no evento intitulado ?Do pasto ao prato: subsídios e pegada ambiental da carne bovina?. A gerente do Instituto Escolhas (IE), Jaqueline Ferreira, abriu o evento explicando que o IE se propôs a analisar os impactos da cadeia produtiva da carne e os subsídios que ela receberia, que são ônus compartilhados com toda a sociedade. O objetivo seria qualificar o debate e dar transparência ao uso do recurso público e, assim, ajudar na adoção de melhores práticas. Por exemplo, revendo se esses subsídios não acabam ajudando a manter produtores ineficientes, que causam maior impacto ambiental, conforme externou o diretor executivo do IE,...
Tipo: Artigo na mídia
Palavras-chave: Rúncias sobre impostos; Pegada de C; Pegada hídrica; Dados IBGE; Práticas de intensificação sustentável; Redução de impacto ambiental; Melhoria de produtividade; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121596

Maracuyá Suspiro: Passiflora nitida Kunth.
Provedor de dados: 14
Autores: JUNQUEIRA, K. P.; JUNQUEIRA, N. T. V.; FALEIRO, F. G.
Tipo: Parte de livro
Palavras-chave: Maracujá suspiro; Maracujá de cheiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124056

Hortaliça não é só salada. Carne moída.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com carne moída. Carne moída com vagem e cogumelo. Carne moída com almeirão e tomate. Carne moída com maxixe.
Tipo: Folders
Palavras-chave: Hortaliça; Carne; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126856

REPRISE: instalação de hortas em quintais urbanos: programa 20: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a instalação de hortas em quintais urbanos. Ao acompanhar o pesquisador Rafael Porto, da Embrapa Roraima, o ouvinte vai saber que, tanto nas cidades quanto naquele perímetro em que o meio urbano e o rural se confundem, é possível instalar hortas em quintais, em espaços públicos, e até mesmo em sacadas de apartamentos. O programa mostra que essa iniciativa, que pode ser individual ou coletiva, diminui os custos de alimentação das famílias e é importante para a segurança alimentar.
Tipo: Gravações de som
Palavras-chave: Horta Caseira; Segurança Alimentar; Alimentação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122771

Coronavirus e o imperativo de acreditar na ciência.
Provedor de dados: 14
Autores: LOPES, M. A.
Tipo: Artigo na mídia
Palavras-chave: Pandemia; Covid-19; Coronavírus; Cientista; Pesquisa; Pandemis.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121442

Desafios de inovação para a agricultura familiar - estratégia para a agricultura familiar: visão de futuro rumo à inovação.
Provedor de dados: 14
Autores: DIDONET, A. D.; FREITAS, A. A. de; MELLO, A. F. S.; EVANGELISTA, B. A.; GAVA, C. A. T.; BITTENCOURT, D. M. de C.; LIMA, D. de B.; TAVARES, E. D.; FIDALGO, E. C. C.; ALVES, E. M. P.; COUDEL, E. S.; CRUZ, F. T. da; DINIZ, J. D. de A. S.; CORREIA, J. R.; NOGUEIRA, J. D.; ESPINDOLA, J. A. A.; MEDEIROS, J. da C.; SCHWENGBER, J. E.; MORAIS, J. C. de; WOLFF, L. F.; ONOYAMA, M. M.; UDRY, M. C. F. V.; CORREIA, M. E. F.; VIDAL, M. C.; UZEDA, M. C.; PEREIRA, M. C. N.; PERDIGÃO, N. R. de O. F.; FACÓ, O.; JULIANO, R. S.; BRIENZA JUNIOR, S.; FAVARO, S. P.; VIOLA, T. H.; DIAS, T. A. B.; VIDAL, V. L.; GUEDES, V. G. F.; GUIMARÃES, V. P.; SILVA, W. T. L. da.
A combinação de tecnologia, conhecimento e capacidade de inovação foi essencial para o desenvolvimento da agricultura brasileira. Entretanto, as pequenas propriedades, em sua maioria, não acompanharam o desenvolvimento observado nas grandes propriedades rurais nas últimas décadas. Nesse sentido, para a contínua promoção do desenvolvimento rural, é necessário proporcionar alternativas tecnológicas e inovadoras para os agricultores familiares, especialmente os de menor porte, para maior inclusão produtiva e consequente geração de renda, melhoria da qualidade de vida e, sobretudo, para o processo de sucessão familiar. Além disso, a inovação nas pequenas propriedades também contribuirá para a adoção de práticas que proporcionem o melhor uso dos recursos...
Tipo: Parte de livro
Palavras-chave: Inclusão produtiva; Agricultura Familiar; Inovação; Desenvolvimento Rural; Renda Familiar; Propriedade Rural; Adoção de Inovações.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124047

Dicas para uma produção sustentável de soja.
Provedor de dados: 14
Autores: DALL'AGNOL, A.
1 folder. Folder 01/2020 - 1ª impressão - junho de 2020 - CGPE 15908.
Tipo: Folders
Palavras-chave: Soja; Desenvolvimento Sustentável; Agricultura Sustentável; Produção; Soybeans; Sustainable development.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124080

Perfil dos produtores e da produção de leite e derivados nos municípios de São Luiz e Rorainópolis em Roraima.
Provedor de dados: 14
Autores: BRAGA, R. M.; BENDAHAN, A. B.
Em 2017 a empresa lançou um edital buscando propostas que contribuíssem com tecnologias sustentáveis para a Amazônia com foco na agricultura familiar. Dentre as principais linhas temáticas expressas incluiu-se a recuperação de pastagens degradadas visando atender a um dos anseios daqueles que lidam diariamente com atividades pastoris. Dentre as ações propostas neste sentido fazia parte a realização de um diagnóstico sobre a atividade leiteira nos municípios de São Luiz e Rorainópolis. Esta publicação apresenta informações sobre o perfil da produção e dos produtores de leite e derivados naqueles municípios, iniciando-se com uma visão geral sobre a produção de leite no contexto mundial, brasileiro, regional e estadual. Segue-se com dados sobre aspectos...
Tipo: Livros
Palavras-chave: Agricultura Familiar; Leite; Produção Leiteira.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132606

Produção de biomassa de tronco de Eucalyptus benthamii submetida à aplicação de lama de cal, cinza de madeira e calcário no oeste catarinense.
Provedor de dados: 14
Autores: MAEDA, S.; BOGNOLA, I. A.; GOMES, J. B. V.
A disposição adequada de resíduos industriais é uma exigência estabelecida em legislação especí- fica. Entre as alternativas disponíveis, destaca-se a utilização desses materiais como insumo para o plantio florestal. A utilização desses resíduos para essa finalidade depende de avaliação prévia de seus efeitos no ambiente e nas plantas. Relata-se nesse trabalho os resultados da avaliação da lama de cal, resíduo gerado na recuperação do licor verde, utilizado no cozimento de cavacos de madeiras para a separação da fibra celulósica e da cinza gerada na queima da madeira para a produção energética na produtividade de biomassa de tronco de Eucalyptus benthamii.
Tipo: Folhetos
Palavras-chave: Cal; Cinza de madeira; Sustentabilidade; Calcário; Biomassa; Produção Florestal; Eucalipto; Eucalyptus benthamii.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127148

Bovinos e a restauração ecológica: vilões ou benfeitores?
Provedor de dados: 14
Autores: ALBUQUERQUE, L. B. de; FERREIRA, I. C.; MALAQUIAS, J. V.
Mesmo em pastagens, a restauração ecológica pode ser uma aliada do produtor quando utilizada para acelerar a recuperação de áreas degradadas, trazendo benefícios em relação a saúde, integridade e sustentabilidade da propriedade rural.
Tipo: Artigo na mídia
Palavras-chave: Restauração ecológica; Recuperação do Solo; Bovino.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130410

Ferrugem-asiática da soja: bases para o manejo da doença e estratégias antirresistência.
Provedor de dados: 14
Autores: GODOY, C. V.; SEIXAS, C. D. S.; MEYER, M. C.; SOARES, R. M.
Tipo: Folhetos
Palavras-chave: Soja; Ferrugem; Controle Integrado; Soybean rust; Integrated agricultural systems.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122923

MANEJO adequado para redução dos riscos de bicheira em bovinos: programa 4: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o manejo adequado para reduzir os riscos de bicheira em bovinos. O controle de ferimentos em bovinos deve ser uma prática constante do pecuarista, já que o problema com bicheira reduz a produtividade da carne e do leite, desvaloriza o couro por conta das lesões que aparecem, além de acarretar altos gastos com medicamentos. O ouvinte vai saber o que causa a bicheira nos animais e vai saber também como evitá-las, com as dicas da veterinária Márcia de Oliveira, da Embrapa Pecuária Sudeste.
Tipo: Gravações de som
Palavras-chave: Bovino; Bicheira; Pecuarista; Produtividade; Medicamento; Lesão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119511

Desenvolvimento in vitro de sementes imaturas provenientes de cruzamentos interespecíficos de Psidium spp.
Provedor de dados: 14
Autores: RIBEIRO, J. M.; SANTOS, C. A. F.; MELO, N. F. de.
A produção de goiaba no Nordeste brasileiro, principalmente no Submédio do Vale do São Francisco, apresenta destaque nacional. Porém, a ocorrência de problemas fitossanitários relacionados ao ataque do nematoide Meloidogyne enterolobii tem prejudicado a produção da cultura e inviabilizado várias áreas de cultivo. A identificação de fontes de resistência por meio da obtenção e seleção de progênies resistentes/tolerantes a M. enterolobii por hibridação artificial e o resgate de embriões resultantes de cruzamentos interespecíficos poderão contribuir para a geração de novas cultivares de copa ou porta enxertos resistentes ao nematoide. Diante disso, o objetivo desta pesquisa foi realizar o desenvolvimento de sementes imaturas resultantes de cruzamentos...
Tipo: Folhetos
Palavras-chave: Goiabeira; Araçazeiro; Cultivo in vitro; Psidum guajava; Meloidogyne enterolobii; Nematoide-das-galhas; Goiaba; Melhoramento Genético Vegetal; Germinação; Psidium; Guavas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124624

Ração de peixes: processo integrado de produção de cogumelo e ração de peixe a partir de resíduos da agroindústria de palma de óleo.
Provedor de dados: 14
Autores: SIQUEIRA, F. G. de.
Processo integrado de produção de cogumelos comestíveis Pleurotus ostreatus e de insumos para formulação de ração de peixe com utilização de biomassas vegetais residuais da agroindústria de palma de óleo (dendê). O conceito de integração se refere à produção em biomassa residual de cogumelos destinados à alimentação humana, com aproveitamento do substrato de seu cultivo (SMS) para formulação de ração de peixe.
Tipo: Folders
Palavras-chave: Peixe; Ração; Cogumelo Comestível; Biomassa; Biomass; Mushrooms; Fish feeds.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126434

COMO produzir uva BRS Vitória em regiões de clima temperado: programa 24: Sul.
Provedor de dados: 14
O Prosa Rural desta semana ensina como produzir a BRS Vitória em regiões de clima temperado. O ouvinte vai saber que esta cultivar de uva de mesa preta, sem sementes, com sabor aframboesado extremamente agradável foi desenvolvida inicialmente para o semiárido nordestino. Mas como chamou a atenção dos produtores das regiões mais frias, que também queriam produzi-la, o técnico Roque Zílio, da Embrapa Uva e Vinho, conta o que é preciso fazer para produzir a BRS Vitória no Sul do País.
Tipo: Gravações de som
Palavras-chave: Uva; Clima Temperado; Produtor; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123602

Manual de gestão do banco ativo de germoplasma de capsicum.
Provedor de dados: 14
Autores: CARVALHO, S. I. C. de; BIANCHETTI, L. de B.; RIBEIRO, C. S. da C.; REIFSCHNEIDER, F. J. B.
Essa publicação tem como objetivo básico relatar a história, a gestão e a operacionalização das atividades do BAG Capsicum mantido na Embrapa Hortaliças.
Tipo: Livros
Palavras-chave: Banco de Germoplasma; Pimenta; Capsicum sp.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124362

A produção de bovinos de corte e o aquecimento global.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Carne bovina; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125599

Contributions of Embrapa to poverty eradication.
Provedor de dados: 14
Autores: WANDELLI, E. V.; ABREU, L. S. de; TAVARES, E. D.; BIANCHINI, F.; SILVA, A. P. da; BELTRAO, S. L. L.; FERREIRA, M. do S. G.
This chapter presents solutions related to the sustainable agrifood systems developed by Embrapa that contribute to the following targets of the Sustainable Development Goal 1 (SDG 1) (United Nations, 2018): Target 1.1) ?By 2030, eradicate extreme poverty for all people everywhere, currently measured as people living on less than $1.25 a day?; and target 1.2) ?By 2030, reduce at least by half the proportion of men, women and children of all ages living in poverty in all its dimensions according to national definitions.
Tipo: Parte de livro
Palavras-chave: Eradicação da pobreza; Sistema agroalimentare sustentável; Embrapa; Pobreza; Desenvolvimento Sustentável; Políticas Públicas; Segurança Alimentar; Poverty; Rural development; Rural poverty; Rural communities; Rural population.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122595

Biomassa lignocelulósica: processo de auto-hidrólise para pré-tratamento de biomassa lignocelulósica.
Provedor de dados: 14
Autores: CARVALHO, F. B. de P.
Tipo: Folders
Palavras-chave: Bagaço de cana de açúcar; Quimíca de renováveis; Biomassa; Celulose.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123217

Euphorbia heterophylla: um novo caso de resistência ao glifosato no Brasil.
Provedor de dados: 14
Autores: ADEGAS, F. S.; GAZZIERO, D. L. P.; OLIVEIRA JUNIOR, R. S. de; MENDES, R. R.; RODRIGUES, L. J.
Tipo: Folhetos
Palavras-chave: Herbicida; Resistência a Produtos Químicos; Euphorbia Heterophylla; Herbicide resistance.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121045

Estudo interlaboratorial em digestão anaeróbia: relato de atividades e desempenho dos laboratórios em 2018-2019.
Provedor de dados: 14
Autores: STEINMETZ, R. L. R.; BARROS, E. C.; KUNZ, A.; ANTES, F. G.; GASPARETO, T. C.; TÁPPARO, D. C.; FAVRETTO, R.; SILVA, J. F. F. da; VENTURIN, B.; BONASSA, G.; DINNEBIER, H. C. B.; BOLSAN, A. C.; TEIXEIRA, E. G.
Tipo: Livros
Palavras-chave: Análise laboratorial; Boas práticas; Análise de Laboratório; Digestão Anaeróbia; Biogás; Tecnologia; Laboratório.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127414

ILPF: bovinocultura, coco e gliricídia: programa 11: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana o Prosa Rural fala sobre a Integração Lavoura-Pecuária-Floresta, iLPF: Bovinocultura, coco e gliricídia. A Integração Lavoura-Pecuária-Floresta é uma estratégia de produção sustentável que está se consolidando cada vez mais no Brasil como importante opção para o setor produtivo agropecuário. A tecnologia consiste na diversificação e integração dos diferentes sistemas produtivos, agrícolas, pecuários e florestais, dentro de uma mesma área, em cultivo consorciado, em sucessão ou rotação, de forma que haja benefícios para todas as atividades. No programa desta semana os convidados Samuel Souza e Humberto Fontes, da Embrapa Tabuleiros Costeiros, contam como integrar a bovinocultura de corte à cultura do coco e ao plantio da gliricídia, com sucesso,...
Tipo: Gravações de som
Palavras-chave: Produção sustentável; Bovinocultura; Gado de Corte; Coco; Gliricidia; Floresta; Lavoura; Pecuária; Consorciação de Cultura; Rotação de Cultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121498

Cana-de-açúcar: variedade de cana-de-açúcar resistente a insetos-praga e tolerante a herbicidas.
Provedor de dados: 14
Autores: MOLINARI, H. B. C.
Cana-de-açúcar geneticamente modificada com resistência à broca-da-cana (Diatraea saccharalis) e tolerância ao herbicida glifosato. Tecnologia de grande importância econômica para o setor sucroenergético, resultado de parceria entre a startup PangeiaBiotech e a Embrapa Agroenergia.
Tipo: Folders
Palavras-chave: Cana de Açúcar; Engenharia Genética; Herbicida; Cane sugar; Herbicides; Genetic improvement; Genetic engineering; Diatraea.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124706

Estoque de carbono orgânico e emissão de gases de efeito estufa do solo em área de campo nativo do bioma Pampa.
Provedor de dados: 14
Autores: VOLK, L. B. da S.; TRINDADE, J. P. P.; GENRO, T. C. M.
Resultados; Desafios, Soluções; Dados publicados em; Coordenadores do projeto
Tipo: Parte de livro
Palavras-chave: Gás; Efeito Estufa; Campo; Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131260

Emissões de metano por bovinos de corte em pastagens temperadas e em sistemas integrados de produção agropecuária.
Provedor de dados: 14
Autores: PONTES, L. DA S.; BARRO, R. S.; VICTOR SAVIAN, J.; BERNDT, A.; MOLETTA, J. L.; PORFIRIO-DA-SILVA, V.; BAYER, C.; CARVALHO, P. C. DE F.
O conceito de intensificação sustentável tem emergido para enfrentar o atual desafio de intensificar a produção de alimentos, por razões de segurança alimentar, com qualidade ambiental, isto é, de incrementar a geração de serviços ecossistêmicos, tais como o sequestro de C. Dentre as estratégias de intensificação sustentável de uso da terra, via diversificação, destacam-se os sistemas integrados de produção agropecuária (SIPA).
Tipo: Parte de livro
Palavras-chave: Sequestro de C; Serviços ecossistêmicos; Emissões de gases de efeito estufa; Acúmulo de C; ILP; ILPF; Sistemas integrados de produção agropecuária; Segurança Alimentar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131306

Análise da relação Brasil-Estados Unidos no agronegócio.
Provedor de dados: 14
Autores: JANK, M. S.; GILIO, L.; COSTA, C. C. da; GUIMARÃES, M.
Tipo: Artigo na mídia
Palavras-chave: Importador e exportador do agronegócio; Barreiras protecionistas; Fluxo de comércio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128517

Brasil é estratégico para a segurança alimentar mundial.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000981634/brasil-e-estrategico-para-a-seguranca-alimentar-mundial.html.
Tipo: Artigo na mídia
Palavras-chave: Produção de grãos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129580

Dona Beta e seu Matias pela preservação da vida e do solo: Estrada da Vitória, Poção de Pedras, MA.
Provedor de dados: 14
Editores técnico da coleção: Roberto Porro e Anderson Cássio Sevilha.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122907

Ciência de sistemas para sofisticar políticas e prevenir crises.
Provedor de dados: 14
Autores: LOPES, M. A.
O inesperado surgimento e a rápida disseminação do Coronavírus despertam apreensão e alarme em todo o mundo. O risco de pandemia bem ilustra a natureza dos problemas complexos da atualidade, que podem emergir sem avisos a partir de inter-relações entre elementos biológicos, físicos, sociais, culturais, políticos e tecnológicos. Os problemas complexos cada vez mais comuns no mundo globalizado desafiam análises e soluções simples e míopes ou, pior, se estabelecem e ganham força a partir da passividade e da inação. É por isso que a ciência de sistemas precisa ser priorizada e fortalecida, para ganharmos capacidade de promover mais colaboração intersetorial e multidisciplinar, quebrando os "silos" científicas e institucionais no processo de formular políticas...
Tipo: Artigo na mídia
Palavras-chave: Covid-19; Coronavírus; Sistemas complexos; Ciência de sistemas; Systems analysis; Pandemis.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123696

Cultivo in vitro e unidades encapsuláveis: estratégias eficazes para conservação ex situ de recursos genéticos de batatas-silvestres.
Provedor de dados: 14
Autores: TANIGUCHI, M.; JAROSEZNISKI, A. P.; SANTOS, J. DA S. DOS; MACHADO, I. E. DA F.; FERREIRA, M. Z.; DORNELES, A. O. S.; CORADIN, J. H.; DUTRA, L. F.; HEIDEN, G.
Tipo: Artigo na mídia
Palavras-chave: Batata; Recurso Genético.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130737

Áreas de ocupação e extensão de ocorrência de butia na América do Sul (Arecaceae).
Provedor de dados: 14
Autores: ESLABÃO, M. P.; ELLERT-PERREIRA, P. E.; BARBIERI, R. L.; HEIDEN, G.
Visando contribuir para avaliações e reavaliações globais, nacionais e estaduais do estado de conservação das espécies de Butia, o objetivo do presente trabalho foi estimar os parâmetros relacionados à distribuição das espécies do gênero, mediante estimativas de AOO e EOO e fornecer subsídios para avaliações de estado de conservação das espécies, conforme os critérios da IUCN.
Tipo: Folhetos
Palavras-chave: Butiá; Conservação; Distribuição Geográfica; Biodiversidade; Espécie em Extinção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127545

Tambaqui: benefícios econômicos com a adoção do Tambaplus Parentesco.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; FLORES, R. M. V.; IANELLA, P.; CASTILHO-BARROS, L.; OLIVEIRA, E. J. de; CAETANO, A. R.
O Tambaplus Parentesco se apresenta como uma ferramenta que pode contribuir com o aumento da qualidade genética dos alevinos de tambaqui por meio da redução de acasalamentos endogâmicos obtida com o melhor gerenciamento do plantel. Como consequência, espera-se uma redução de custos de produção e incremento na oferta de formas jovens, o que trará ganhos significativos para toda a cadeia produtiva.
Tipo: Folhetos
Palavras-chave: Tambaplus Parentesco; Tambaqui; Peixe; Produção Pesqueira; Alevino; Cadeia Produtiva; Fish; Colossoma; Fish production.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128986

ROBUSTAS amazônicos: caso de sucesso na cafeicultura nacional.
Provedor de dados: 14
Este vídeo mostra a importância do cultivo do café para o desenvolvimento da agricultura nacional.
Tipo: Filmes
Palavras-chave: Brasil; Café Robusta; Coffea Canephora; Cafeicultura; Coffee beans; Planting.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130936

Cultivo protegido de videiras: um panorama em municípios da Serra Gaúcha.
Provedor de dados: 14
Autores: LATTUADA, D. S.; ANZANELLO, R.; OLIVEIRA, A. M. R. DE; BOTTON, M.; SANTOS, H. P. dos.
A produção de uvas no Brasil em 2018 foi de 1.592.242 toneladas, sendo a região Sul a mais representativa (58% do total colhido), considerando-se variedades de mesa e viníferas. Neste mesmo ano, só no Rio Grande do Sul (RS) foram colhidas 822.689 toneladas (KIST et al., 2018), correspondendo a 52% do total nacional. Atualmente, existem seis regiões vitivinícolas no Estado do RS: Campanha (Bagé e Santana do Livramento), Serra do Sudeste (Pinheiro Machado e Encruzilhada do Sul), Jaguari (Jaguari), São José do Ouro (São José do Ouro), Rolante (Rolante e Riozinho) e Encosta Superior do Nordeste, conhecida como ?Serra Gaúcha?. Nesta última região, a maioria dos vinhedos estão localizados nos 19municípios da Microrregião de Caxias do Sul (MR Caxias),...
Tipo: Livros
Palavras-chave: Videira; Vinhedo; Serra Gaúcha; Fruticultura; Viticultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127205

A agropecuária não existe sem logística.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000988655/a-agropecuaria-nao-existe-sem-logistica.html.
Tipo: Artigo na mídia
Palavras-chave: Agronegócio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122210

Desempenho de diferentes cultivares de cenoura no período outono-inverno, nas condições edafoclimáticas de Dourados, MS.
Provedor de dados: 14
Autores: MARTINS, P. O. M.; MOTTA, I. de S.; BRASIL, B. G. C.; SOUZA, G. G.; COLOMBO, B. D.; CARVALHO, A. D. F. de.
Tipo: Resumo em anais e proceedings
Palavras-chave: Cenoura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126581

Maracuyá dulce: Passiflora alata Curtis.
Provedor de dados: 14
Autores: FALEIRO, F. G.; OLIVEIRA, J. da S.; JUNQUEIRA, N. T. V.; COSTA, A. M.
Tipo: Parte de livro
Palavras-chave: Maracujá doce; Passiflora alata Curtis.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124054

Caracterização do Banco Ativo de Germoplasma de nim da Embrapa Tabuleiros Costeiros.
Provedor de dados: 14
Autores: SILVA, A. V. C. da; MUNIZ, E. N.; LEDO, A. da S.; NASCIMENTO, A. L. S.; NASCIMENTO, M.
Tipo: Folhetos
Palavras-chave: Banco de Germoplasma; Nim; Genética Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127958

As chuvas voltaram em outubro.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
Depois de um período prolongado de estiagem, voltou a chover na região de Jales no mês de outubro.
Tipo: Artigo na mídia
Palavras-chave: Clima; Climatologia; Mudança Climática; Chuva; Temperatura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126381

Sêmen refrigerado bovino em protocolos de IATF, o que sabemos até o momento?
Provedor de dados: 14
Autores: SILVA, J. C. B.; SILVA, M. R.; SILVA, R. G. da; MASSONETO, J. F.; LORO, P. S.; ALVES, I. A. C.; NOGUEIRA, E.; NICACIO, A. C.; OLIVEIRA, L. O. F. de; ABREU, U. G. P. de; MARINHO, D. B.
Disponibiliza o histórico dos experimentos realizados nessa linha de pesquisa, dentro do projeto denominado Mais Cria, com objetivo de obter mais e melhores animais. Espera-se que essa abordagem alcance diferentes segmentos (produtores, pesquisa/universidade, centros de processamento de sêmen e profissionais de campo), e possa contribuir para os avanços, tanto na área de andrologia, como efetivamente na reprodução e produção animal, não só para a região de atuação da Embrapa Pantanal, como para todo o País.
Tipo: Folhetos
Palavras-chave: Sêmen; Inseminação Artificial.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128972

Manejo da agrobiodiversidade em sistema agrícola tradicional fundo de pasto: comunidade de Ouricuri, Uauá-BA.
Provedor de dados: 14
Autores: BIANCHINI, F.; BIANCHINI, P. C.; BARRETO, R. M. F.; CUNHA, P. A. F. da.
Este capítulo aborda os sistemas tradicionais de uso, manejo e conservação da biodiversidade e da agrobiodiversidade, partindo de um processo de autodemarcação realizado por meio do mapeamento agroecológico, realizado no ano de 2018 com a Comunidade Tradicional Fundo de Pasto Ouricuri, de Uauá/BA2. A sistematização e discussão dos conhecimentos da comunidade, a torna co-autora deste capítulo. Apresentamos nos resultados a leitura que a comunidade faz do seu território.
Tipo: Parte de livro
Palavras-chave: Fundo de pasto; Agroecologia; Sistema agricola; Ouricuri PE; Desenvolvimento territorial; Desenvolvimento Rural; Biodiversidade; Caatinga; Rural communities; Rural development; Biodiversity.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127348

Quantos agricultores desmatam na Amazônia?
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000982658/quantos-agricultores-desmatam-na-amazonia.html.
Tipo: Artigo na mídia
Palavras-chave: Desmatamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129630

COBERTURA de inverno no controle de plantas daninhas: programa 22: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre como a cobertura do solo, realizada a partir dos cultivos de inverno, pode controlar o aparecimento de plantas daninhas. O programa chama especial atenção para as áreas em pousio, no Sul do País, que acabam infestadas por plantas daninhas de difícil controle. O pesquisador Leandro Vargas, da Embrapa Trigo, explica como as culturas do trigo, centeio, canola e aveia podem diminuir o número de plantas daninhas, trazendo também vantagens econômicas ao produtor.
Tipo: Gravações de som
Palavras-chave: Erva Daninha; Aveia; Centeio; Colza; Pousio; Produtor; Trigo; Cobertura do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122780

Cultivo de milho-verde durante o ano todo em terra firme do Amazonas.
Provedor de dados: 14
Autores: OLIVEIRA, I. J. de; ANTONIO, I. C.
O objetivo deste trabalho foi avaliar o cultivo de milho-verde durante o ano todo, em ecossistema de terra firme no Amazonas, por meio do uso de irrigação suplementar no período seco do ano, para garantir oferta intermitente ao mercado consumidor e agregar valor ao produto.
Tipo: Folhetos
Palavras-chave: Milho Verde.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128829

Biomassa lignocelulósica: processo organosolv para fracionamento de biomassa lignocelulósica.
Provedor de dados: 14
Autores: GAMBETTA, R.
Tipo: Folders
Palavras-chave: Biomassa vegetal; Quimíca de renováveis; Fracionamento; Biomassa; Celulose; Lignina.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123219

BRS MANDOBI: banco de proteínas de amendoim forrageiro para rebanho leiteiro: programa 22: Norte.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a BRS Mandobi, a primeira cultivar de amendoim forrageiro propagada por semente desenvolvida no Brasil. Ao acompanhar o pesquisador Maykel Sales, da Embrapa Acre, o ouvinte vai saber que a BRS Mandobi é ideal para a formação de um banco de proteínas para o rebanho leiteiro. O programa explica como instalar, manejar e utilizar este banco feito com a BRS Mandobi, que além de ser uma alternativa para o gado nas épocas secas, também funciona como um adubo verde.
Tipo: Gravações de som
Palavras-chave: Banco de proteína; Amendoim; Adubo Verde; Gado Leiteiro; Semente.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122773

Hortaliça como comprar, conservar e consumir: morango.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Morango. Como comprar. Como conservar. Como consumir. Salada de morango com queijo branco. Macarrão ao molho de morango.
Tipo: Folders
Palavras-chave: Morango; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126003

Algodão brasileiro é o número 1 em sustentabilidade.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000986623/algodao-brasileiro-e-o-numero-1-em-sustentabilidade.html.
Tipo: Artigo na mídia
Palavras-chave: Safra do algodão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122192

Controle químico da mancha de Ramulária (Ramularia areola) do algodoeiro no Norte de Mato Grosso.
Provedor de dados: 14
Autores: CHITARRA, L. G.; PERINA, F. J.; TARDIN, F. D.; RODRIGUES, S. M. M.; ARAUJO, A. E. de.
No Norte do Estado de Mato Grosso, os níveis de incidência e severidade da mancha de ramulária, causada pelo fungo Ramularia areola Atk, tem aumentado significativamente devido às práticas de manejo adotadas pelos produtores nas áreas cultivadas com o algodoeiro. O controle químico continua sendo a tática mais eficaz para o controle da doença, pois as cultivares disponíveis no mercado não apresentam níveis de resistência satisfatório ao patógeno. Os objetivos desse trabalho foram determinar a eficácia dos fungicidas Score, Eminent Gold, Caramba 90, Priori Top, Authority, Orkestra, OXI0091, Fezan Gold, IKF - 5411 400SC, Basf 750 02 F, ADA FF 0086/16, BAS 753 02F, DPX - U7F30, A20259E, A16976A, Mertin, UPL 2000 e a testemunha (sem fungicida) no controle da...
Tipo: Folhetos
Palavras-chave: Algodão; Controle Químico; Doença Fúngica; Fungicida; Chemical control; Cotton; Fungicides; Ramularia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133897

Eficiência de fungicidas para controle de giberela do trigo: resultados dos Ensaios Cooperativos - Safra 2018.
Provedor de dados: 14
Autores: SANTANA, F. M.; LAU, D.; SBALCHEIRO, C. C.; SCHIPANSKI, C. A.; VENANNCIO, W. S.; DALLAGNOL, L. J.; GUTERRES, C. W.; KUHNEM JÚNIOR, P. R.; CHAGAS, D. F.
A giberela causada pelo fungo Gibberella zeae (Schw) Petch. (anamorfo Fusarium graminearum Schwabe), é uma das doenças fúngicas mais destrutivas da cultura do trigo e de ocorrência generalizada no mundo. A giberela é considerada uma doença de difícil controle e altamente influenciada pelo ambiente. A infecção por giberela causa danos significativos na produção de trigo em regiões de clima úmido e quente, principalmente no estádio de floração, favoráveis ao desenvolvimento da doença (Casa et al., 2007; Reunião..., 2018). Além disso, a contaminação por micotoxinas implica na desvalorização e na rejeição dos grãos no mercado moageiro (Fernandes e Tibola, 2011).
Tipo: Folhetos
Palavras-chave: Micotoxinas; Gibberella zeae; Anamorfo Fusarium graminearum Schwabe; Giberela; Fungo; Doença Fúngica; Doença de Planta; Trigo; Produção; Contaminação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124186

POTENCIAL nutritivo da casca do pinhão: programa 12: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o potencial nutritivo da casca do pinhão, que é a semente da araucária. A pesquisadora Cristiane Helm detalha os benefícios para a saúde humana, contidos nessa casca. Além de ensinar como preparar alimentos - arroz e macarrão, entre outros, com a água do cozimento do pinhão, ela explica que a riqueza nutricional da casca do pinhão o torna um importante alimento funcional, sem glúten, que tem tudo para propiciar ganhos ao produtor e ao consumidor.
Tipo: Gravações de som
Palavras-chave: Alimento funcional; Pinhão; Araucária; Consumidor; Casca; Glúten; Produtor; Nutrição Humana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121514

A democratização dos sistemas alimentares.
Provedor de dados: 14
Autores: LOPES, M. A.
Cresce, a cada dia, a preocupação com a excessiva concentração de poder em segmento tão essencial para o bem-estar da humanidade, já que um número relativamente limitado de operadores ganhou capacidade de influenciar praticamente todas as etapas críticas dos sistemas alimentares.
Tipo: Artigo na mídia
Palavras-chave: Sistema de Alimentação; Consumidor; Nutrição Humana; Indústria Alimentícia; Indústria Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126364

SECADORES solares para cafés especiais: alternativas de quatro tipos de terreiros secadores de café.
Provedor de dados: 14
Este vídeo apresenta diversos tipos de secadores solares para secagem de cafés especiais.
Tipo: Filmes
Palavras-chave: Terreiro suspenso; Terreiro estufa; Barcaça seca café; Secador solar rotativo; Café; Secagem; Secador Solar; Transferência de Tecnologia; Coffee beans; Processing technology; Solar drying.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130935

Custos e demanda de capital para a produção, em espaldeira, de uvas viníferas para processamento em Bento Gonçalves (RS).
Provedor de dados: 14
Autores: LAZZAROTTO, J. J.; PROTAS, J. F. da S.
Estudo com o objetivo de trazer informações úteis a respeito da evolução dos custos de produção e da demanda de capital de longo prazo necessária para a produção sustentável, em sistema de condução em espaldeira, de uvas viníferas com alta qualidade visando o processamento.
Tipo: Folhetos
Palavras-chave: Evolução dos custos; Preço da uva; Mercado de uva e vinho; Uvas viníferas; Vitivinícola; Vinhos finos; Produtos importados; Uva; Vitis Vinifera; Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124399

Deposição de fungicidas na axila da segunda folha da bananeira: nova tecnologia para o controle da Sigatoka-Negra.
Provedor de dados: 14
Autores: GASPAROTTO, L.; PEREIRA, J. C. R.; PEREIRA, M. C. N.
Em trabalhos desenvolvidos na Embrapa Amazônia Ocidental constatou-se que, para o controle das doenças com fungicidas nas condições do estado do Amazonas, há necessidade de 52 pulverizações por ano com fungicidas protetores ou de 26 com sistêmicos. Avaliando-se novas formas de aplicação de fungicidas para o controle da sigatoka-negra, descobriu-se que é possível reduzir para três o número de aplicações por ciclo produtivo por meio da deposição do fungicida, na formulação comercial, na axila da segunda folha, com auxílio da uma seringa veterinária, marca Höppner.
Tipo: Folhetos
Palavras-chave: Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124137

Artigo: Vespas e abelhas na agricultura e em ambientes urbanos
Provedor de dados: 14
Autores: MALAGODI-BRAGA, K. S.
Resumo: Os insetos conhecidos popularmente como abelhas e vespas ou marimbondos apresentam grande diversidade e abundância, com espécies bastante comuns em diversos ambientes. Essa diversidade de espécies se manifesta por meio da sua aparência corporal - diversidade de cores, formatos, tamanhos – e diferentes comportamentos. Os adultos, de diversas espécies, se alimentam do néctar e do pólen das flores e, como as abelhas, podem atuar como polinizadores, também contribuindo com a reprodução das plantas. Na agricultura, embora a contribuição estimada das vespas (4,4%) na polinização de cultivos seja bastante inferior à das abelhas (78,9%), elas desempenham um outro papel importantíssimo como predadoras: controlam as populações de outros insetos, impedindo...
Tipo: Artigo na mídia
Palavras-chave: Abelha; Vespa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129501

Diversidade genética inter e intraespeífica de acessos do Banco de Germoplasma de passiflora "Flor da Paixão".
Provedor de dados: 14
Autores: OLIVERIA, J. da S.; FALEIRO, F. G.; JUNQUEIRA, N. T. V.
Tipo: Parte de livro
Palavras-chave: Descritor morfológico; Diversidade genética.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124048

Organossolos e outros solos com horizontes orgânicos no Brasil: abrangência e área manejada entre os anos de 1994 a 2020.
Provedor de dados: 14
Autores: CANTO, A. C. B. do; FONTANA, A.; CESÁRIO, F. V.; FIGUEIREDO, L. G. E. de; CHEAUZU, H.
A quantificação dos solos orgânicos (Organossolos e outros solos com horizontes orgânicos) quanto à área de ocorrência e manejados no Brasil é feita com intuito de elaborar o Inventário Nacional de Emissões de Gases de Efeito Estufa junto à Convenção Quadro das Nações Unidas sobre Mudança do Clima. Como um componente do setor da agropecuária, a emissão de óxido nitroso (N2O) proveniente dos solos orgânicos como emissões diretas é obtida pela quantificação da área em diferentes usos e está multiplicada por um fator de emissão de N2O. O objetivo deste trabalho é quantificar a área total em maior nível de detalhe e a área por tipo de uso dos solos orgânicos no Brasil. Para a quantificação da área ocupada dos referidos solos, foram utilizados mapas de...
Tipo: Folhetos
Palavras-chave: Solo Orgânico; Histossolo; Manejo do Solo; Horizonte; Organic soils; Histosols; Soil management; Soil horizons.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122074

O exemplo da família de Josilene e Mizael no cultivo da horta: Povoado de Três Poços, Lago dos Rodrigues, MA.
Provedor de dados: 14
Editores técnico da coleção: Roberto Porro e Anderson Cássio Sevilha.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122897

Importância da tecnologia social estratégias para o empoderamento das mulheres catadoras de mangaba em Sergipe.
Provedor de dados: 14
Autores: SILVA JUNIOR, J. F. da; MOTA, D. M. da; RODRIGUES, R. F. de A.; SCHMITZ, H.; GOMES, D. L.
ODS 2: Fome Zero e Agricultura Sustentável.
Tipo: Folhetos
Palavras-chave: Planta Silvestre; Mangaba; Extração; Mulher Rural.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129424

Metodologia para micropropagação do plátano cultivar Pacovan.
Provedor de dados: 14
Autores: FAÇANHA, D. C.; QUISEN, R. C.; LOPES, R.
Seleção de matrizes e coleta de mudas no campo. Redução e desinfestação superficial do rizoma para isolamento do ápice caulinar. Isolamento e inoculação in vitro do ápice caulinar. Quebra de dominância apical, indução e multiplicação de brotos. Enraizamento e alongamento das brotações. Aclimatização em casa de vegetação.
Tipo: Folhetos
Palavras-chave: Banana; Variedade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122556

Porta-enxertos para diversificação de pomares de laranjeira 'Pera' [Citrus sinensis (L.) Osbeck] do polo citrícola dos Tabuleiros Costeiros da Bahia e de Sergipe.
Provedor de dados: 14
Autores: TEODORO, A. V.; CARVALHO, H. W. L. de; BARROS, I. de; CARVALHO, L. M. de; SOARES FILHO, W. dos S.; GIRARDI, E. A.; PASSOS, O. S.; PINTO ZEVALLOS, D. M.
Tipo: Folhetos
Palavras-chave: Laranja; Fruta Cítrica; Citricultura; Porta Enxerto; Produtividade; Economia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127524

Hortaliça como comprar, conservar e consumir: alcachofra.
Provedor de dados: 14
Autores: LANA, M. M.; SANTOS, F. F. dos; MATOS, M. J. L. F.; TAVARES, S. A.; MELO, M. F. de.
Alcachofra. Como comprar. Como conservar. Como consumir. Dicas. Alcachofra com palmito. Alcachofra com recheio de atum.
Tipo: Folders
Palavras-chave: Economia Domestica; Culinária; Cynara Scolymus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125584

Embrapa Solos: relatório anual 2019.
Provedor de dados: 14
Autores: EMBRAPA SOLOS.
Este relatório reúne as principais práticas de gestão e os destaques nas áreas de Pesquisa, Desenvolvimento e Inovação alcançados pela Embrapa Solos no ano de 2019. Está organizado de modo a apresentar a visão geral da organização, seu planejamento estratégico e também como a Embrapa Solos gera valor para a Sociedade. Nossas ações contribuem para os 17 Objetivos de Desenvolvimento Sustentável (ODS) da Agenda 2030 das Nações Unidas. Por isso, ao longo deste relatório é possível observar a vinculação de nossas atividades aos ODS, principalmente no que tange aos Destaques de PD&amp;I e Políticas Públicas. O conteúdo foi construído com base nas orientações do International Integrated Reporting Council (IIRC) para Relatórios Integrados; no entanto, salientamos...
Tipo: Relatórios técnicos
Palavras-chave: Empresa Publica; Gestão; Planejamento; Inovação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124228

Programa Nacional de Melhoramento do Guzerá para Leite: resultados do Teste de Progênie, do Programa de Melhoramento Genético de Zebuínos da ABCZ e do Núcleo MOET.
Provedor de dados: 14
Autores: BRUNELI, F. A. T.; PEIXOTO, M. G. C. D.; SANTANA JUNIOR, M. L.; PEREIRA, R. J.; ARBEX, W. A.; PENNA, V. M.; ZADRA, L. E. F.; JOSAHKIAN, L. A.; VERNEQUE, R. da S.; LÔBO, R. B.; CARVALHO, M. R. S.
Este documento vem sendo, anual e regularmente, publicado desde 2000, como fruto de um esforço conjunto da coordenação do Programa Nacional de Melhoramento do Guzerá para Leite (PNMGuL), apoiada por parceiros de distintas instituições nacionais de ensino e pesquisa e de diversas fazendas leiteiras colaboradoras do teste de progênie. Esta interação fortalece e estimula todos os envolvidos a dar continuidade à iniciativa, para tão somente valorizar este importante recurso genético tropical por meio de seu melhoramento genético para objetivos específicos de seleção.
Tipo: Livros
Palavras-chave: ABCZ; Bos taurus indicus; Bovino de leite; Bovinos de leite; Gado de leite; Guzerá; Melhoramento genético; Núcleo MOET; Programa Nacional de Melhoramento do Guzerá; Raça Guzerá; Zebuíno; Zebus; Marcador molecular; Melhoramento; Melhoramento genético animal; Teste de progenie.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123540

Levantamento de HLB, de Diaphorina citri e do parasitoide Tamarixia radiata em hortos e viveiros de citros do estado da Bahia.
Provedor de dados: 14
Autores: RORIZ, A. K. P.; DUARTE, C. S. A.; VELAME, K. V. C.; SILVA, S. X. de B.; NASCIMENTO, A. S. do; ANDRADE, E. C. de; BARBOSA, C. de J.
Tipo: Folhetos
Palavras-chave: Fruta Cítrica; Doença de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124738

Hortaliça não é só salada. Hortaliças orgânicas.
Provedor de dados: 14
Autores: LANA, M. M.; RESENDE, F. V.
O que é hortaliça orgânica. O que esperar de uma hortaliça orgânica? O que não esperar de uma hortaliça orgânica? Trocar a hortaliça convencional pela orgânica é trocar o risco do agrotóxico pelo risco de contaminação microbiológica?Como garantir a qualidade das hortaliças orgânicas que você leva para casa?Por que as hortaliças orgânicas em geral são mais caras que as convencionais?
Tipo: Folders
Palavras-chave: Agricultura Orgânica; Hortaliça.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126539

Propagação vegetativa de jaborandi (Piper hispidum) por meio de estacas foliares.
Provedor de dados: 14
Autores: DORNELAS JÚNIOR, L. F.; BISI, E. J. R.; SANTOS, M. R. A. dos.
Tipo: Folhetos
Palavras-chave: Enraizamento de Folhas; Brotações Adventícias; Organogênese in vivo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120704

Monitoramento de desembarques pesqueiros na Bacia Tocantins-Araguaia: Araguatins.
Provedor de dados: 14
Este boletim objetiva avaliar as pescarias no município de Araguatins, TO, na primeira metade da temporada de 2020. Foram avaliados 88 desembarques neste quadrimestre e foram calculadas a produtividade por pescador, a renda líquida por pescador gerada pela pesca e as principais espécies capturadas (nome popular).
Tipo: Folhetos
Palavras-chave: Araguatins-TO; Cadeia Produtiva; Desembarque; Pesca Artesanal; Projeto Pesqueiro; Pescador.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125294

Integrated water resources management.
Provedor de dados: 14
Autores: SCHULER, A. E.; LIMA, J. E. F. W.; CRUZ, M. A. S.
Tipo: Parte de livro
Palavras-chave: Manejo de Água; Water management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131136

PRODUTOS alimentícios saudáveis produzidos com pinhão: programa 16: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre os benefícios do pinhão para a saúde humana e os variados produtos dele originados, como a pré-mistura para bolos e salgadinhos. O pinhão, que é a semente da araucária, é apresentado como um alimento funcional, com possibilidades para as agroindústrias, e uma alternativa para os celíacos, por não conter glúten. Participam do programa, as pesquisadoras Cristinae Helm e Rossana Catiê Bueno de Godoy, ambas da Embrapa Florestas, e o pesquisador Carlos Wanderlei Piler de Carvalho, da Embrapa Agroindústria de Alimentos.
Tipo: Gravações de som
Palavras-chave: Alimento funcional; Celíaco; Pinhão; Araucária; Semente; Glúten.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122025

PIM - Produção Integrada de maçã: normas para solicitação de inclusão de agrotóxicos e agroquímicos na grade de produção - safra 2021/2022.
Provedor de dados: 14
Autores: EMBRAPA.
Apresenta a orientação completa para as empresas solicitarem a inclusão de agrotóxicos e agroquímicos na grade de produtos autorizados para a Produção Integrada de Maçã para a Safra 2021/2022.
Tipo: Folders
Palavras-chave: PIM; Agrotóxicos; Agroquímicos; Normas; PImaçã; Grade agroquímicos; Maçã; Produção; Produção Integrada; Grade.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124155

Colheita e pós-colheita de acerola para o consumo in natura.
Provedor de dados: 14
Autores: FREITAS, S. T. de; BARBOSA, M. A. G.; RYBKA, A. C. P.
Apesar da alta perecibilidade dos frutos, a colheita de acerolas na maturação ideal, bem como o armazenamento em temperaturas adequadas e uso de embalagens e controle de podridões podem prolongar a vida útil e garantir a oferta de frutos no mercado com alta qualidade para o consumo in natura. A colheita na maturação inadequada, associada à falta de práticas eficientes para a conservação da qualidade dos frutos, pode levar a altos índices perdas na produção. Em virtude da acerola apresentar alta sensibilidade a danos mecânicos, rápida maturação e senescência, o armazenamento e a conservação pós-colheita são demasiadamente dificultados. Por este motivo, o conhecimento sobre o ponto de colheita e tecnologias que visem proporcionar a manutenção da qualidade...
Tipo: Folhetos
Palavras-chave: Consumo in natura; Qualidade do fruto; Acerola; Pós-Colheita; Perda Pós-Colheita; Maturação; Postharvest technology; Storage; Malpighia emarginata.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128087

Terceira edição do seminário da safra de maçã reúne setor produtivo em Vacaria.
Provedor de dados: 14
Autores: FIALHO, V. M. Z. B.
Grapholita molesta, glomerela, Irrigação e fertirrigação - Esses foram os temas que atraíram cerca de 90 produtores e técnicos, no dia 20 de novembro, ao último Seminário sobre Recomendações Técnicas para a Cultura da Macieira na Safra 2019/2020, realizado neste ano pela Embrapa Uva e Vinho, em Vacaria. A equipe planeja realizar mais uma edição relacionada à essa Safra no início de 2020.
Tipo: Artigo na mídia
Palavras-chave: Glomerela; Cancro Europeu; Maçã; Cancro; Grapholita Molesta; Irrigação; Fertirrigação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119351

As boas práticas da família Pereira Santana: Sítio Novo, Lago do Junco, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; BIAGINI, Y. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122793

Conformidade de requisitos de qualidade tecnológica de trigo para exportação produzido no Rio Grande do Sul, safras 2015, 2016 e 2017.
Provedor de dados: 14
Autores: GUARIENTI, E. M.; PIRES, J. L. F.; CUNHA, G. R. da; MIRANDA, M. Z. de; NICOLAU, M.; TIBOLA, C. S.; PASINATO, A.; SANTOS, I. B. S. dos S.
A exportação de trigo tem sido considerada uma alternativa para alavancar a produção desse cereal no Brasil. Em destaque, visando à ocupação de áreas que permanecem ociosas ou com pouca agregação de renda nos estabelecimentos rurais durante a safra de inverno no Sul do País. Os objetivos deste trabalho foram: avaliar a conformidade da qualidade tecnológica de trigo produzido para comercialização no Rio Grande do Sul, nas safras 2015, 2016 e 2017, quanto aos requisitos de três cenários de exportação e identificar as principais causas de não conformidade e apontar sugestões para minimizá-las. Os resultados permitiram caracterizar as safras e as regiões que possuem representação na produção comercializável de trigo no Rio Grande do Sul. Foi possível avaliar o...
Tipo: Livros
Palavras-chave: Linhagens; Cultivares de trigo; Trigo; Exportação; Cereal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123409

Hortaliça como comprar, conservar e consumir: moranga.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Moranga. Como comprar. Como conservar. Como consumir. Fritada de moranga. Quibe de moranga.
Tipo: Folders
Palavras-chave: Abóbora Moranga; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126001

Agentes de controle biológico aplicados no substrato promovem proteção equivalente à pulverização de copa contra o míldio, em casa de vegetação.
Provedor de dados: 14
Autores: MICHEL, A. M.; CAVALCANTI, F. R.
A publicação apresenta resultados de pesquisa relacionados ao controle do míldio, principal doença da viticultura, utilizando o controle biológico como alternativa às estratégias tradicionais de controle da doença, que atualmente são baseadas em calendários de pulverização de produtos sintéticos. Foram avaliados dois agentes de controle biológico (BCA): Bacillus subtilis e Bacillus amyloliquefaciens e a via de aplicação. Os resultados indicam que os agentes administrados no substrato podem conferir proteção parcial da videira ?Cabernet Sauvignon? ao míldio, em casa de vegetação, cujos mecanismos de defesa ainda precisam ser elucidados.
Tipo: Folhetos
Palavras-chave: Oomiceto Plasmopara viticola; Vitis spp; Videira; Cultura da videira; Pseudofungo; Inoculação no solo; Resposta sistêmica de defesa; Cabernet; Uva; Míldio; Patógeno; Doença de Planta; Fungo; Doença Fúngica; Controle Biológico; Doença; Downy mildew; Plasmopara viticola; Bacillus subtilis; Bacillus amyloliquefaciens.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127883

POTENCIAL fertilizante dos dejetos suínos: programa 44: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o potencial fertilizante dos dejetos suínos, uma alternativa que propicia ganhos ambientais e econômicos. O pesquisador Juliano Correa, da Embrapa Suínos e Aves, traz detalhes sobre os critérios técnicos que o suinocultor precisa observar para produzir um adubo eficaz, para as lavouras, semelhante aos fertilizantes industrializados. Para saber como produzir um adubo de qualidade superior, a partir de dejetos suínos, não perca o Prosa Rural.
Tipo: Gravações de som
Palavras-chave: Dejeto suíno; Fertilizante; Adubo; Dejeto; Lavoura; Suinocultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126170

SIMPMAMÃO: aplicativo para gestão de casas de sementes: programa 25: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana o Prosa Rural fala sobre um aliado tecnológico para o controle das duas principais pragas da cultura do mamão. Trata-se do SimpMamão, um software que pode ser acessado pelo celular, tablet ou computador. O Sistema Integrado de Monitoramento de Pragas do Mamão, SimpMamão, ajuda no controle da varíola ou pinta-preta e o ácaro-rajado. Participa do programa a pesquisadora Fabiana Sasaki, da Embrapa Mandioca e Fruticultura.
Tipo: Gravações de som
Palavras-chave: Mamão; Ácaro Rajado; Pinta Preta; Varíola; Praga de Planta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123584

Especies y cultivares utilizados comoplantas ornamentales.
Provedor de dados: 14
Autores: FALEIRO, F. G.; JUNQUEIRA, N. T. V.; OLIVEIRA, J. da S.; FELDBERG, N. P.; ALONSO, A. M.; VILELA, M. S.
Tipo: Parte de livro
Palavras-chave: Planta Ornamental; Trepadeira Ornamental; Maracujá.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124060

Seca-da-mangabeira: prevenção, manejo e controle.
Provedor de dados: 14
Autores: JUNQUEIRA, N. T. V.; SILVA JUNIOR, J. F. da.
Tipo: Folders
Palavras-chave: Mangaba; Doença de Planta; Fungo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125985

USO de abanadora para diminuir perda de grãos: programa 33: Norte.
Provedor de dados: 14
O Prosa Rural desta semana apresenta três abanadoras de grãos para pequenas propriedades. O ouvinte vai conhecer essas máquinas de pequeno porte, cujos principais benefícios são a redução do trabalho do campo e do tempo de limpeza dos grãos de feijão, arroz, milho e soja. O pesquisador José Geraldo da Silva fala sobre cada um dos modelos, que variam conforme o perfil dos produtores e tem condições de ser construídos por eles por eles próprios.
Tipo: Gravações de som
Palavras-chave: Arroz; Feijão; Grão; Milho; Perda da Produção; Produtor; Propriedade Rural; Soja.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124755

Protocolos Embrapa para superovulação de cabras e ovelhas.
Provedor de dados: 14
Autores: FONSECA, J. F. da; OLIVEIRA, M. E. F.
Tipo: Folhetos
Palavras-chave: SOV; Superovulated females; FSH; Caprino; Ovino; Superovulação; Reprodução Animal; Ciclo Estral; Hormônio; Goats; Sheep; Small ruminants; Superovulation; Hormones.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128193

PORTFÓLIO alimentos: segurança, nutrição e saúde.
Provedor de dados: 14
A oferta de alimentos seguros, saudáveis e sustentáveis à população depende de uma cadeia que inclui produção, processamento, industrialização, distribuição e comercialização, cuja responsabilidade pelas boas práticas agropecuárias e de fabricação é partilhada entre diferentes setores do governo, da iniciativa privada e da sociedade civil. Alimentos seguros e de qualidade não apenas têm sido um fator de diferenciação no mercado, mas cada vez mais são atributos exigidos pelos mercados e pelos consumidores, que estão mais atentos à qualidade final do produto e à forma como os alimentos são obtidos
Tipo: Folders
Palavras-chave: Alimento; Segurança Alimentar; Qualidade; Comercialização; Produção; Nutrição.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1151369

Biogás: produção de biogás a partir de resíduos agroindustriais.
Provedor de dados: 14
Autores: GONCALVES, S. B.
Tipo: Folders
Palavras-chave: Biodigestão; POME; Biofertilizante.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123215

Boletim Agrometeorológico da Embrapa Soja, Londrina, PR - 2019.
Provedor de dados: 14
Autores: SIBALDELLI, R. N. R.; GONCALVES, S. L.; FARIAS, J. R. B.
Tipo: Folhetos
Palavras-chave: Meteorologia; Agricultura; Agrometeorology; Meteorology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122321

Diagnóstico de perdas qualitativas e quantitativas no armazenamento de trigo.
Provedor de dados: 14
Autores: TIBOLA, C. S.; MARSARO JUNIOR, A. L.; MIRANDA, M. Z. de; MENEGHETTI, V. L.; GUARIENTI, E. M.; LIMA, M. I. P. M.; EICHELBERGER, L.; NICOLAU, M.; PEREIRA, P. R. V. da S.; ZAVAREZE, E. da R.; GUTKOSKI, L. C.
A produção de grãos no Brasil apresentou crescimento exponencial nas últimas décadas, demandando estruturas e manejos adequados na etapa de armazenamento, visando manter a qualidade dos produtos colhidos e reduzir as perdas. A determinação de índices de perdas quantitativas, o diagnóstico da presença de contaminantes, a caracterização da aptidão tecnológica e a indicação de boas práticas no armazenamento de trigo, são importantes para obtenção de um alimento seguro, além de manter a qualidade e a eficiência na cadeia produtiva. O documento técnico ?Diagnóstico de perdas qualitativas e quantitativas no armazenamento de trigo?, tem por objetivo apresentar diagnóstico da qualidade tecnológica e dos contaminantes detectados no trigo durante dez meses de...
Tipo: Folhetos
Palavras-chave: Grãos; Perdas qualitativas; Perdas quantitativas; Trigo; Produção; Grão.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124354

Evaluation of nickel content in Ni-Mg-Al mixed oxides in steam reforming of simulated biogas.
Provedor de dados: 14
Autores: CORREIA, F. H.; CURADO, I. C.; GHESTI, G. F.; BRAGA, P. R. S.; MARINHO, A. L. A.; MATTOS, L. V.; NORONHA, F. B.; SOARES, I. P.; SCHULTZ, E. L.
Ni-Mg-Al mixed oxides derived from hydrotalcite-like compounds were prepared by a co-precipitation technique, calcined at two temperatures (550 °C and 750 °C) and applied to steam reforming of simulated biogas. Three nickel contents were used in the catalysts (5, 10 and 15%). The catalysts were characterized by X ray fluorescence, N2 sorption techniques, X-ray diffraction and temperature-programmed desorption of CO2. Steam reforming experiments using simulated biogas were carried out at atmospheric pressure and 750 °C, using S/C ratio of 3.2. Catalysts calcined at 750 °C showed nickel and magnesium aluminate phases, resulting in lower density of basic sites. Conversion of CH4 ranged from 97.4 to 99.6% while CO2 conversion ranged from 58.5 to 63.5%. The...
Tipo: Folhetos
Palavras-chave: Steam reforming; Mixed oxides; Biogás; Níquel; Oxido; Steam; Nickel; Catalysts; Oxides.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124168

Chuvas em fevereiro superam a média histórica do mês.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
Enquanto no mês de janeiro o total de chuvas (148 mm), registrado na estação meteorológica da Embrapa emJales, representou 54% da média mensal (274 mm), em fevereiro esse total (222 mm) superou a média históricado mês (187 mm) em 19%.
Tipo: Artigo na mídia
Palavras-chave: Clima; Clima Tropical; Climatologia; Chuva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121043

As boas práticas de dona Alódia na produção do sabonete de babaçu da AMTR: Comunidade Ludovico, Lago do Junco, MA.
Provedor de dados: 14
Editores técnico da coleção: Roberto Porro e Anderson Cássio Sevilha.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122911

Boas práticas e higiene na colheita do pêssego.
Provedor de dados: 14
Autores: FLORES CANTILLANO, R. F.; NAVA, D. E.
A geração de produtos agrícolas de alta qualidade, utilizando boas práticas agrícolas que respeitem o meio ambien-te e a saúde dos trabalhadores e consu-midores, deve ser um objetivo prioritário na agricultura moderna.
Tipo: Folhetos
Palavras-chave: Boas práticas; Covid-19; Pêssego; Higiene; Higiene de Alimento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127066

Práticas agroecológicas para enfrentar riscos na agropecuária do Semiárido brasileiro.
Provedor de dados: 14
Autores: SILVA, A. F.
O presente capítulo foi elaborado com alguns princípios que norteiam a escolha dessas práticas, bem como algumas experiências que por si só revelam os desafios e frustações que podem ocorrer quando não são observadas as características norteadoras de cada local onde existe o potencial produtivo a ser explorado.
Tipo: Parte de livro
Palavras-chave: Agroecologia; Pratica agroecologica; Semiárido; Adversidades; Degradação da Caatinga; Práticas agroecológicas; Diversificação de espécies; Práticas de processamento; Práticas de armazenamento; Agricultura; Degradação Ambiental; Caatinga; Solo; Compostagem; Biofertilizante; Resíduo Orgânico; Agricultura Familiar; Desenvolvimento Rural; Rural development.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1153790

Seis transformações para avançarmos na direção da sustentabilidade.
Provedor de dados: 14
Autores: LOPES, M. A.
Apresenta considerações sobre estudo realizado pelo Instituto Internacional de Análise de Sistemas Aplicados (IIASA), um think tank na Áustria, que reuniu pesquisadores e líderes globais numa plataforma denominada O Mundo em 2050 (The World in 2050 em ingle&amp;#770;s, ou TWI 2050), para formular estratégias mais efetivas de implementação dos ODS até 2030, já antecipando desafios ainda mais complexos.
Tipo: Artigo na mídia
Palavras-chave: Organização das Nações Unidas (ONU); Objetivos de desenvolvimento sustentável (ODS); Desenvolvimento Sustentável; Economia; Políticas Públicas; Sustainable development; Rural development.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128749

Importância, identificação e controle de piolhos e ácaros em galinhas poedeiras: perguntas &amp; respostas.
Provedor de dados: 14
Autores: SAATKAMP, M. G.; DUARTE, S. C.; LOULY, C. C. B.; FERREIRA, L. L.; ARAÚJO, I. C. S. de.
Tipo: Folhetos
Palavras-chave: Sanidade Animal; Parasitologia; Ave Domestica; Poedeira Comercial; Galinha Para Postura; Ácaro Vermelho; Piolho; Aviário.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124931

TÉCNICAS para o plantio do cajueiro-anão: programa 5: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana o Prosa Rural traz pra você as principais técnicas para o plantio do cajueiro-anão. O plantio de cajueiro exige tratos culturais diferentes, dependendo da região produtora. O pesquisador Luiz Serrano, da Embrapa Agroindústria Tropical, fala sobre os fatores de sucesso para essa cultura, como a escolha do clone certo para cada região, o plantio na época correta e o espaçamento adequado.
Tipo: Gravações de som
Palavras-chave: Caju; Clone; Época de Plantio; Espaçamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120582

Recomendação do cipó-alho (Mansoa alliacea) na dieta de alevinos de pirarucu para melhoria do crescimento e imunidade.
Provedor de dados: 14
Autores: TAVARES-DIAS, M.; DIAS, M. K. R.
Tipo: Folhetos
Palavras-chave: Peixe de Água Doce; Piscicultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125430

BENEFÍCIOS da utilização de sementes de feijão-caupi de alta qualidade: programa 13: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre os benefícios da utilização de sementes de feijão-caupi de alta qualidade e traz como convidado o pesquisador Cândido Athayde Sobrinho, da Embrapa Meio-Norte. Os sistemas agrícolas do feijão-caupi, em geral, não usam sementes no plantio. Em vez disso, os produtores usam grãos para compor as lavouras; o que gera baixo rendimento por hectare, enfraquece a genética da cultura e traz sérios riscos de introduzir pragas em áreas onde ainda não havia registros delas. O programa desta semana explica os benefícios de se usar sementes de qualidade, traz dicas sobre as cultivares de feijão-caupi e destaca alguns cuidados no armazenamento das sementes.
Tipo: Gravações de som
Palavras-chave: Feijão de Corda; Semente; Armazenamento; Lavoura; Plantio; Praga; Produtor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121504

Capacitação e atualização tecnológica das famílias do Projeto Quintais Sustentáveis.
Provedor de dados: 14
Autores: PORTO, R. G.
O Projeto Quintais Sustentáveis nasceu da interlocução com as demandas da sociedade no estado de Roraima por profissionais ligados ao tema do rural e do agrário, especialmente, no que tange à projetos sociais, ainda que técnico-produtivos, mas que foca em linhas de atuação que tenham a perspectiva de desenvolvimento local da agricultura familiar a partir dos atores e potencialidades locais.
Tipo: Folhetos
Palavras-chave: Agroecologia; Projeto Social; Quintais Sustentáveis; Agricultura Familiar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121806

Information for citizenship action and sustainable development promotion.
Provedor de dados: 14
Autores: ANTUNES, E.; OLIVEIRA, V. B. V. de; RAMOS, R. G. C.; ESCOBAR, J.; COSTA, J. R. da; SOUZA, R. B. de; TURAZI, C. M. V.
Context. Problem. How does Embrapa promote its work?. Scientific dissemination and science popularization. Relationship with the media. Promoting and attending events. Peer educators training. Collective information production for citizenship action. Final considerations.
Tipo: Parte de livro
Palavras-chave: Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129326

Bases metodológicas para avaliação de impacto no escopo do Programa AgroNordeste.
Provedor de dados: 14
Autores: MAGALHAES, K. A.; COSTA, E. M.; MARIANO, F. Z.
O Programa AgroNordeste do Ministério da Agricultura, Pecuária e Abastecimento (Mapa) consiste em um plano de ação para impulsionar o desenvolvimento econômico, social e sustentável do meio rural da região Nordeste, objetivando atingir 230 municípios e 1,7 milhão de pessoas (Brasil, 2020). A participação da Embrapa Caprinos e Ovinos no Programa AgroNordeste ocorre em parceria com o Mapa e o Programa Dom Hélder Câmara, coordenado pelo Fundo Internacional de Desenvolvimento Agrícola (PDHC/Fida), atuando de forma efetiva na disponibilização de seu portfólio de tecnologias, programa de capacitações e sistematização de experiências exitosas para o semiárido brasileiro. Os recursos orçamentários de suporte à esta parceria foram consignados através da celebração...
Tipo: Folhetos
Palavras-chave: Brasil; Região Nordeste; Avaliação de impacto; Políticas Públicas; Desenvolvimento Rural; Projeto de Desenvolvimento; Impacto Social; Impacto Econômico; Public policy; Rural development; Sustainable development; Social impact; Economic impact; Development projects; Brazil.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128217

Hortaliça como comprar, conservar e consumir: aspargo.
Provedor de dados: 14
Autores: LANA, M. M.; TAVARES, S. A.
Aspargo. Como comprar. Como conservar. Como consumir. Dicas. Salada de aspargo com laranja. Sanduíche de aspargo ao forno.
Tipo: Folders
Palavras-chave: Aspargo; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125633

Teca (Tectona grandis L. f.).
Provedor de dados: 14
Autores: GAMA, M. A. P.; ROCHA, J. E. C. da; BRASIL, E. C.; LIMA, M. D. R.; BARROS JUNIOR, U. de O.
Tipo: Parte de livro
Palavras-chave: Teca; Tectona Grandis.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127338

Boas práticas para a estruturação de projetos em parceria: um guia básico. 43 p.
Provedor de dados: 14
Autores: WILBERT, C. A.; DUARTE, S. C.; KUNZ, A.
Tipo: Folhetos
Palavras-chave: Sustentabilidade; Suinocultura; Avicultura; Pesquisa Pecuária; Projeto de Pesquisa; Norma; Normalização; Inovação; Tecnologia; Desenvolvimento Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128300

Cultivar de milho BRS 3046: produtividade e qualidade de forragem para silagem de planta inteira.
Provedor de dados: 14
Autores: GONTIJO NETO, M. M.; ABREU, S. C.; BORGHI, E.; RESENDE, A. V. de; PEREIRA FILHO, I. A.; COELHO, R. R.
A cultura do milho se destaca em relação a outras culturas para a produção de silagem pelo seu potencial de produzir uma grande quantidade de forragem com alto valor nutritivo, e por apresentar composição que resulta em ótima fermentação no silo, sem maiores necessidades de inoculantes ou aditivos e assim produzir uma silagem de boa palatabilidade. Em resumo, é uma cultura que produz uma grande quantidade de energia digestível por unidade de área. Uma cultivar de milho recomendada para silagem deve apresentar uma série de características agronômicas, morfoanatômicas, bromatológicas e nutricionais que refletirão em uma maior produção de forragem de boa qualidade. Assim, para a produção de silagem de milho de boa qualidade deve-se considerar não somente o...
Tipo: Folhetos
Palavras-chave: Zea Mays; Variedade; Silagem; Forragem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122233

Macaúba: processo de obtenção do óleo bruto de macaúba.
Provedor de dados: 14
Autores: FAVARO, S. P.
Tipo: Folders
Palavras-chave: Prensa expeller; Química de renováveis; Macaúba.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123228

SARA: ferramenta para controle da verminose em ovinos: programa 21: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a ferramenta Sara, que ajuda o produtor de ovino a controlar a verminose na propriedade. A convidada do programa, a pesquisadora Simone Niciura, da Embrapa Pecuária Sudeste, explica por que a doença é uma grande preocupação para a atividade, fala sobre o software Sara e dá dicas sobre como fazer o manejo adequado.
Tipo: Gravações de som
Palavras-chave: Ovino; Doença Animal; Verminose; Produtor; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122754

Projeções para o mercado mundial de carne bovina 2020-2029.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Carne bovina; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125596

Hortaliça não é só salada. Macarrão.
Provedor de dados: 14
Autores: LANA, M. M.
Hortaliça também combina com macarrão. Macarrão com abobrinha e gorgonzola. Macarrão com brocoli e tomate. Salada de macarrão com aipo, cenoura e vagem.
Tipo: Folders
Palavras-chave: Economia Domestica; Hortaliça.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129003

TÉCNICAS para o plantio do cajueiro-anão: programa 5: Norte.
Provedor de dados: 14
Esta semana o Prosa Rural traz pra você as principais técnicas para o plantio do cajueiro-anão. O plantio de cajueiro exige tratos culturais diferentes, dependendo da região produtora. O pesquisador Luiz Serrano, da Embrapa Agroindústria Tropical, fala sobre os fatores de sucesso para essa cultura, como a escolha do clone certo para cada região, o plantio na época correta e o espaçamento adequado.
Tipo: Gravações de som
Palavras-chave: Caju; Clone; Época de Plantio; Espaçamento.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120583

O novo reforço na produção agroflorestal de Domingos Mariano e Ivanilde: Quilombo São Bento do Juvenal, Peritoró, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; GUSMÃO, L. A.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Manejo; Agricultura Familiar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122783

Criação de bezerras leiteiras.
Provedor de dados: 14
Autores: FERREIRA, F. C.; SALMAN, A. K. D.; CRUZ, P. G. da.
A criação de bezerras, fase que será discutida neste capítulo, compreende não apenas a fase de criação per si, mas também o período que antecede seu nascimento (o período seco das vacas, aproximadamente 60 dias antes do parto). Os aspectos práticos mais importantes que permitem a melhoria dos sistemas de criação de bezerras do nascimento até o desmame são os seguintes: os cuidados no período do pré-parto até o nascimento, instalações, manejo ao nascimento, cuidados durante o período de cria, saúde da bezerra, cuidados após a desmama e controle dos índices zootécnicos.
Tipo: Parte de livro
Palavras-chave: Bezerro Leiteiro; Método de Criação; Manejo; Dairy calves; Animal husbandry; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126178

o Mulungu e o ciclo da vida
Provedor de dados: 14
Autores: RESENDE, A. S. de; FERREIRA, V. M.
Ilustrações de Luis Carlos Augusto dos Santos.
Tipo: Folhetos
Palavras-chave: Uso artesanal; Cerca viva; Literatura infantojuvenil; Árvore Florestal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128117

A produtividade do rebanho bovino brasileiro em carcaças aumentou 80% em 20 anos.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125551

Palma de óleo (Dendezeiro).
Provedor de dados: 14
Autores: FRANZINI, V. I.; MATOS, G. S. B. de; MACHADO, D. N.; ASSUNÇÃO, E. A.; MATOS VIÉGAS, I. de J.; ARAUJO, S. M. B.
Tipo: Parte de livro
Palavras-chave: Dendê; Adubação; Calagem.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125346

As boas práticas dos Sousa na criação bovina em babaçuais: Povoado de São Manoel, Lago do Junco, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; LINHARES, A. da S.; SOUSA, R. C. de; BIAGINI, Y. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122817

Podridão-parda da haste da soja: reação de genótipos de soja, na safra 2019/2020.
Provedor de dados: 14
Autores: COSTAMILAN, L. M.; BERTAGNOLLI, P. F.; MOREIRA, J. U. V.; MELO, C. L. P. de; PEREIRA, A. F.; OLIVEIRA, A. C. B. de.
Tipo: Folhetos
Palavras-chave: Doença de Planta; Soja; Soybeans.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129468

Bananeira.
Provedor de dados: 14
Autores: BRASIL, E. C.; CRAVO, M. da S.; MENEZES, A. J. E. A. de; CARVALHO, J. E. U. de; SOUZA, B. D. L. de; NAKAYAMA, L. H. I.
Tipo: Parte de livro
Palavras-chave: Banana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127319

Produção de mudas de mangueira em sistema orgânico de produção
Provedor de dados: 14
Autores: FONSECA, N.; RITZINGER, R.; CORDEIRO, Z. J. M.
Tipo: Folhetos
Palavras-chave: Manga.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122154

Programa Nacional de Melhoramento do Gir Leiteiro - 11ª prova de pré-seleção de touros - touros pré-selecionados por meio de avaliação genômica.
Provedor de dados: 14
Autores: FERNANDES, A. R.; PEREIRA, C. M. A.; OLIVEIRA, G. R. A. e; GOMES, F. C.; OLIVEIRA, J. C. de; REIS FILHO, J. C.; MACHADO, C. H. C.; Moraes, C. R.; SILVA, L. C. M.; PANETTO, J. C. do C.; SILVA, M. V. G. B.; MACHADO, M. A.; MARTINS, M. F.; REIS, D. R. de L.; XAVIER, M. da C.
A Prova de Pré-Seleção vem se consolidando ano após ano como a forma mais segura e eficiente para o ingresso de jovens reprodutores no Teste de Progênie ABCGIL/Embrapa. Os reflexos dessa prova, que neste ano completa sua 11ª edição, são visíveis na logística e operacionalização das centrais de coleta e processamento de sêmen. Do ponto de vista técnico, espera-se que a maior pressão na seleção para fertilidade e características funcionais dos touros candidatos ao Teste de Progênie possam refletir em ganhos nestas características,para as futuras gerações de vacas descendentes destes animais. Desde 2016, o resultado do Teste de Progênie já conta com touros que participaram e foram aprovados na Prova de Pré-Seleção.
Tipo: Folhetos
Palavras-chave: Genômica; Sumário de touros; Gir leiteiro; Melhoramento genético animal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122050

Nota de Conjuntura: Leite e Derivados - Março/2020.
Provedor de dados: 14
Autores: STOCK, L. A.; ROCHA, D. T. da; CARVALHO, G. R.; RESENDE, J. C. de; LEITE, J. L. B.; SIQUEIRA, K. B.; LANA, M. S.; HOTT, M. C.; ANDRADE, R. G.; MAGALHAES JUNIOR, W. C. P. de; CHAVES, D. O.; RAMALHO, B.
Os preços reais do leite ao produtor cresceram 7% ao ano entre 2017 e 2019. Em fevereiro de 2020, o preço líquido foi de R$ 1,42/litro, acima 19% da média para o mês. Já a margem ao produtor sobre a mistura (30% soja e 70% milho) ficou em R$ 1,07/litro em fevereiro, mas ainda está 10% acima da média histórica, de R$ 0,99/litro. A expectativa é de margens melhores no segundo trimestre de 2020, período em que os preços do leite ao produtor normalmente sobem e também pela redução gradativa dos preços dos grãos colhidos nesse período. Mas o momento é de incertezas. O Covid-19 e a guerra do petróleo e suas consequências na produção estão desacelerando a economia mundial e devem ser acompanhadas diariamente. Confira essa análise completa com mais detalhes na...
Tipo: Artigo na mídia
Palavras-chave: Conjuntura; Derivados; Lacteos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121288

COMO produzir uva em casa: programa 15: Sul.
Provedor de dados: 14
O Prosa Rural desta semana ensina você a produzir uva em casa. Sim, se você tem um espaço no seu quintal e sempre sonhou em colher suas próprias uvas, é só acompanhar o Prosa Rural e começar a sua produção! Como escolher o tipo de uva, tudo sobre a muda, como cuidar das plantas e muito mais, você confere nesta edição. Quem traz as informações é o engenheiro agrônomo Rodrigo Monteiro. Ele trabalha na Embrapa Uva e Vinho, em Bento Gonçalves.
Tipo: Gravações de som
Palavras-chave: Uva; Muda; Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122024

Buchada e dobradinha: caracterização físico-química, microbiológica e sensorial.
Provedor de dados: 14
Autores: LIMA, L. D. de; SANTOS, J. de S.; BATISTA, A. S. M.; NALERIO, E. S.; MARTINS, M. C.; SOUSA, P. T. B. de.
Tipo: Folhetos
Palavras-chave: Culinária nordestina; Culinária regional; Produto cárneo; Análise sensorial; Qualidade microbiológica; Caprino; Ovino; Tecnologia de Alimento; Víscera; Produto Derivado da Carne.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128206

Programa Nacional de Melhoramento Genético da Raça Girolando. Avaliação Genética / Genômica de Fêmeas - Junho 2020.
Provedor de dados: 14
Autores: SILVA, M. V. G. B.; MARTINS, M. F.; GONÇALVES, G. S.; PANETTO, J. C. do C.; PAIVA, L. DE C.; MACHADO, M. A.; REIS, D. R. de L.; FERREIRA JUNIOR, E.
As avaliações genéticas das 1000 vacas de maiores valores genéticos para a produção de leite passaram a ser divulgadas em 2013 e a partir de 2019, os resultados das avaliações de vacas pas-saram a utilizar a medida de PTAs (habilidades preditas de transmissão), assim como já divulgado no Sumário de Touros Girolando. Em 2017, passou-se a divulgar o resultado das PTAs genômicas (GPTA) das 200 fêmeas jovens com idade inferior ou igual a 36 meses para produção de leite em até 305 dias. Dessa forma, por meio das informações disponibilizadas no Sumário os criadores têm conhecimento das vacas Girolando com maior potencial genético. Tal conhecimento possibilita selecionar, de modo mais eficiente, as vacas que poderão ser mães de touros e aquelas a serem submetidas...
Tipo: Livros
Palavras-chave: Avaliação genômica; Bovinos de Leite; Melhoramento genético; Raça Girolando.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123345

Manejo madeireiro comunitário em áreas protegidas da Amazônia: aprendizados e recomendações de como facilitar a troca de experiências entre comunidades e organizações.
Provedor de dados: 14
Autores: FONSECA, F. L. da; ESPADA, A. L. V.; COOPER, N.; KAINER, K. A.; MELLO, D. M. G.; WADT, L. H. de O.
Este documento apresenta um histórico do manejo madeireiro comunitário na Amazônia brasileira e a motivação para promover a troca de experiências; descreve o percurso metodológico adotado para a realização do encontro; e analisa os aprendizados do processo de organização do evento e dos casos de manejo madeireiro comunitário. Espera-se que possa contribuir com as iniciativas de uso sustentável das florestas por comunidades locais da Amazônia. Esta publicação está de acordo com os Objetivos de Desenvolvimento Sustentável 12 (Consumo e Produção Responsáveis) e 15 (Vida Terrestre). Os Objetivos de Desenvolvimento Sustentável (ODS) são uma coleção de 17 metas globais estabelecidas pela Assembleia Geral das Nações Unidas.
Tipo: Livros
Palavras-chave: Manejo florestal comunitário; Reserva extrativista; Silvicultura comunitaria; Áreas de conservación; Reserves forestales; Selo ODS 15; Selo ODS 12; Comunidade Rural; Transferência de Tecnologia; Community forestry; Conservation areas; Forest reserves; Technology transfer; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131542

Ata...
Provedor de dados: 14
Autores: REUNIÃO DE PESQUISA DE SOJA, 37., 2019, Londrina.
Editado por Osmar Conte, Fernando Augusto Henning, Regina Maria Villas Bôas de Campos Leite.
Tipo: Livros
Palavras-chave: Pesquisa Agrícola; Soja; Agricultural research; Soybeans.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121765

Controle de artrópodes-praga com vírus entomopatogênicos.
Provedor de dados: 14
Autores: CASTRO, M. E. B. de; RIBEIRO, B. M.; CRAVEIRO, S. R.; INGLIS, P. W.; VALICENTE, F. H.
Características biológicas e ecológicas; Taxonomia, diversidade e evolução; Modo de ação e ciclo biológico dos baculovírus; Patogênese e interação vírus-hospedeiro; Uso dos baculovírus e sua importância; Desafios e perspectivas.
Tipo: Parte de livro
Palavras-chave: Vírus; Baculovirus; Taxonomia; Controle Biológico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122097

Os cuidados após a colheita do milho na safra de verão.
Provedor de dados: 14
Autores: PIMENTEL, M. A. G.
Tipo: Artigo na mídia
Palavras-chave: Primeira safra; Zea Mays; Safra; Armazenamento; Controle Químico; Grão; Fungo; Inseto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124815

Áreas prioritárias para restauração florestal no bioma Amazônia: relações com clima, relevo, solos e regiões fitoecológicas.
Provedor de dados: 14
Autores: GERHARD, P.; ALVAREZ, I. A.; IEMINI, A. E.
Este estudo está fortemente apoiado nas análises e dados gerados pelo trabalho da Aliança pela Restauração da Amazônia, e visa subsidiar decisões e políticas públicas para restauração florestal - quanto às espécies e aos números de mudas a serem produzidas para cada plano de restauração a ser implantado -, por meio da descrição de características de clima, relevo, solos e vegetação, e considerando escalas de prioridade de APR.
Tipo: Folhetos
Palavras-chave: Classificação climática de Köppen; Restauração ecológica; Floresta Tropical; Vegetação Nativa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127114

Reação de híbridos de milho à podridão-de-colmo causada por Macrophomina phaseolina.
Provedor de dados: 14
Autores: COSTA, R. V. da; COTA, L. V.; SILVA, D. D. da; ALMEIDA, R. E. M. de; CAMPOS, L. J. M.; CUSTODIO, D. P.; BERNARDES, F. P.; TUBIANA, D.; SILVA, A. F. da; LIMA, L. S.
Este trabalho teve como objetivo caracterizar o nível de resistência de híbridos comerciais de milho a essa doença em condição de campo com inoculação artificial do fungo. O presente trabalho contribui para o atendimento do Objetivo do Desenvolvimento Sustentável 2: ?Acabar com a fome, alcançar a segurança alimentar e melhoria da nutrição e promover a agricultura sustentável?, meta 2.4 ?Até 2030, garantir sistemas sustentáveis de produção de alimentos e implementar práticas agrícolas resilientes, que aumentem a produtividade e a produção, que ajudem a manter os ecossistemas, que fortaleçam a capacidade de adaptação às mudanças climáticas, às condições meteorológicas extremas, secas, inundações e outros desastres, e que melhorem progressivamente a qualidade...
Tipo: Folhetos
Palavras-chave: Sustentabilidade; Selo ODS 2; Agenda 2030; Objetivo de desenvolvimento sustentável; Doença de Planta; Podridão do Colmo; Fungo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126606

Potencial produtivo e qualidade industrial de clones de batata.
Provedor de dados: 14
Autores: LENZ, E. A.; PEREIRA, A. da S.; AZEVEDO, F. Q.; CASTRO, C. M.; SILVA, G. O. da; JORGE, R. O.
O objetivo deste trabalho foi avaliar o desempenho de clones avançados de batata quanto a rendimento de tubérculos e caracteres de qualidade industrial, visando a identificação daqueles com maior potencial para esse segmento de mercado. Foram avaliados dez clones do Programa de Melhoramento Genético da Embrapa (F21-07-09, F97-07-04, F102-07-22, F110-07-01, F156-07-19, F161-07-02, F50-08-01, F131-08-06, F131-08-26, F183-08-01), em comparação com as cultivares Agata e Asterix. O experimento foi conduzido durante as safras de outono de 2015 e 2016 em Pelotas, RS. O delineamento experimental foi em blocos ao acaso, com quatro repetições. Foram avaliados os seguintes caracteres de rendimento: massa total de tubérculos, massa de tubérculos comerciais, massa...
Tipo: Folhetos
Palavras-chave: Batata; Produção Vegetal; Melhoramento Genético Vegetal; Tubérculo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126866

Plantio direto dá adeus à erosão e à compactação dos solos.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000983123/plantio-direto-da-adeus-a-erosao-e-a-compactacao-dos-solos.html.
Tipo: Artigo na mídia
Palavras-chave: Plantio direto na palha.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129616

Conceitos de fertilidade do solo e manejo adequado para as regiões tropicais.
Provedor de dados: 14
Autores: RONQUIM, C. C.
A produção agrícola mundial precisará aumentar 70% em relação aos níveis atuais para atender, em 2050, o crescimento da demanda de alimentos resultante de aumento da população, rendimentos crescentes e mudança para dietas ricas em proteínas (FAO, 2017). Essa produção demandará mais de 120 milhões de hectares de terra e, para ocorrer de forma sustentável, dependerá de intensificação agropecuária e aumento da produtividade das áreas já cultivadas. Ante as peculiaridades da agricultura nas regiões tropicais, torna-se necessário conhecer detalhadamente as características e propriedades químicas e físicas dos solos, objetivando seu manejo adequado, o uso mais apropriado de insumos e produções mais rentáveis. Avaliar a fertilidade química dos solos é de suma...
Tipo: Folhetos
Palavras-chave: Correção do solo; Sustentabilidade; Adubação; Agricultura Ecológica.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128267

Recobrimento de sementes de feijão-miúdo com agrominerais no controle de Sitophilus sp.
Provedor de dados: 14
Autores: JOB, R. B.; BEVILAQUA, G. A. P.; OLANDA, G. B.; PINHEIRO, R. A.; MULLER, P. do C.
Os métodos de controle de insetos em sementes armazenados devem oferecer baixo risco à saúde, assim como eficiência e operacionalidade dentro do manejo dos agricultores familiares. O objetivo deste trabalho foi avaliar o efeito do agromineral fosfato natural itafós (FNI), utilizado no recobrimento de sementes, sobre a sobrevivência de Sitophilus sp. As sementes foram recobertas com 5 g, 10 g, 15 g, 20 g e 25 g de agromineral/100 g de semente, determinando-se os níveis de tratamento. Foram colocados em placas de vidro vedadas 20 sementes e 20 insetos adultos não sexados. Os insetos vivos e mortos foram contados 24 e 48 horas após o início do experimento. O delineamento experimental foi inteiramente ao acaso com quatro repetições. Os dados foram analisados...
Tipo: Folhetos
Palavras-chave: Feijão; Semente; Rocha; Inseto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125349

Ferramentas genéticas e genômicas na avaliação da eficiência alimentar de bovinos de corte.
Provedor de dados: 14
Autores: MAGNABOSCO, C. de U.; REY, F. S. B.; LOPES, F. B.; SOARES, B. B.; PEREIRA, L. S.; CARVALHO, R. A.; COSTA, M. F. O. e; EIFERT, E. da C.; BRUNES, L. C.
A eficiência alimentar tem grande influência sobre a produtividade, a rentabilidade e a sustentabilidade dos sistemas de produção de bovinos de corte e, por este motivo, esta característica vem sendo incluída em programas de melhoramento genético. Para tal, a eficiência alimentar bruta e a conversão alimentar vêm sendo, comumente, utilizadas como critério de seleção. Porém, estas apresentam como desvantagem a correlação genética com outras características de importância econômica que levam, a longo prazo, ao aumento do peso adulto e das exigências de mantença do animal, além da menor possibilidade de obtenção de ganho genético do que outras características relacionadas à eficiência alimentar. Para superar essas limitações, a utilização de características...
Tipo: Livros
Palavras-chave: Gado de Corte; Genética Animal; Eficiência Nutricional.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131773

FERRAMENTA para extrativista quebrar coco babaçu com menor esforço: programa 18: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana, o Prosa Rural fala sobre uma ferramenta que permite ao extrativista realizar a quebra do coco babaçu com menor esforço. O convidado do programa, o pesquisador José Mário Frazão, da Embrapa Cocais, desenvolveu uma ferramenta para a quebra manual do coco babaçu. Ele conta como essa ferramenta funciona e fala também das vantagens. A máquina possui acionamento manual e ergonômico para a quebradeira de coco ou qualquer outro extrativista realizar a quebra do coco babaçu com mais segurança e conforto.
Tipo: Gravações de som
Palavras-chave: Extrativista; Coco; Babaçu; Ergonomia; Ferramenta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122761

As dez megatendências para a cadeia produtiva da carne bovina em 2040.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Carne bovina.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125557

Mapeamento das oportunidades e ameaças em processos organizacionais da Embrapa Meio Ambiente.
Provedor de dados: 14
Autores: CRIPPA, M. E. N.; PEREIRA, S. E. M.; ROSSO, C. R. S. de; OLIVEIRA, B. P. de.
A Embrapa Meio Ambiente apresenta neste documento a estratégia que foi adotada para implantar a mentalidade de gestão de risco em seus processos internos. O objetivo inicial desta iniciativa foi o de atender aos requisitos da norma ABNT NBR ISO 9001:2015. Ela está integrada à iniciativa institucional de integração estratégica orientada a impactos, operacionalizada por meio do projeto especial "Integração estratégica orientada para impactos" (Projeto FOCUS), além de contemplar, em parte, os requisitos da política da Embrapa de gestão de riscos, integridade, conformidade e controles internos.
Tipo: Folhetos
Palavras-chave: Administração de risco; Administração de Empresa; Planejamento Administrativo; Norma; Risk management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123824

DR. FEIJÃO: aplicativo que facilita a vida do produtor: programa 2: Sul.
Provedor de dados: 14
O Prosa Rural desta semana apresenta o Doutor Feijão, aplicativo que aproxima os produtores das soluções tecnológicas, desenvolvidas pela Embrapa para o sistema produtivo do feijão comum. O analista Aluísio Goulart, da Embrapa Arroz e Feijão, conta que essa ferramenta auxilia técnicos e agricultores, trazendo informações sobre o desenvolvimento da planta e o manejo e pragas e doenças, entre outras. Também disponibiliza publicações, identifica parceiros para aquisição de sementes, e o põe o produtor em contato direto com a Embrapa.
Tipo: Gravações de som
Palavras-chave: Sistema produtivo; Feijão; Agricultor; Doença de Planta; Praga de Planta; Semente; Tecnologia; Produtor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1119553

Proposição de um índice de homogeneidade territorial: o caso dos territórios de identidade.
Provedor de dados: 14
Autores: SILVA, M. A. S. da.
Tipo: Parte de livro
Palavras-chave: Planejamento Regional; Desenvolvimento Rural; Política de Desenvolvimento; Política Social; Políticas Públicas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128615

Compostos orgânicos voláteis de diferentes variedades de mangueira, com potencial para o manejo de Sternochetus mangiferae (Coleoptera: Curculionidae).
Provedor de dados: 14
Autores: BORGES, M.; BLASSIOLI-MORAES, M. C.; MICHEREFF, M. F. F.; HASSEMER, M. J.; NUNES, I.; SILVA, C. C. A. da; MAGALHÃES, D. M.; LAUMANN, R. A.; GUIMARAES, T. G.; SILVA, A. de C.; RICALDE, M. P.
Tipo: Folhetos
Palavras-chave: Broca-da-mangueira; Cairomônios; Organoléptico; Mango seed weevil; Organoleptic; Manga; Kairomones.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128028

As boas práticas de produção e processamento da família de Lúcia e Chico Fartura: Povoado Serrinha, Igarapé Grande, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; MATOS, F. F. de; SOUSA, R. C. de.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122836

Deficiências nutricionais em guandu.
Provedor de dados: 14
Autores: LIMA FILHO, O. F. de.
Tipo: Folhetos
Palavras-chave: Guandu; Deficiência.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122028

Necessidade hídrica na implantação de pomar do clone BRS 226 de cajueiro-anão.
Provedor de dados: 14
Autores: GONDIM, R. S.; SERRANO, L. A. L.; SILVA, J. P. da; ARAÚJO, T. A.
Apesar de o cajueiro ser uma espécie tolerante ao estresse hídrico, perdas de mudas têm sido relevantes em implantação de pomares, uma vez que no primeiro ano são mais vulneráveis à falta de água. O conhecimento preciso da quantidade de água a aplicar poderá melhorar a sobrevivência de plantas no primeiro ano em campo. O presente trabalho teve como objetivo estimar as necessidades hídricas de plantas de cajueiro-anão 'BRS 226' no primeiro ano de cultivo. O estudo foi conduzido na área experimental da Embrapa Agroindústria Tropical, no município de Paraipaba, CE. Utilizou-se o método do balanço hídrico, num volume de solo controlado até a profundidade de 0,60 m. As mudas foram plantadas no espaçamento 8,0 m x 4,0 m. A evapotranspiração da cultura acumulada...
Tipo: Folhetos
Palavras-chave: BRS 226; Kc; Anacardium Occidentale; Evapotranspiração; Clone; Irrigação; Anacardium.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122356

Manejo da soja em terras baixas para alta produtividade.
Provedor de dados: 14
Autores: CONCENÇO, G.; AGUILA, L. S. H. D.; PARFITT, J. M. B.; SCIVITTARO, W. B.
As áreas de terras baixas do Rio Grande do Sul abrangem cerca de 4 milhões de hectares aptos à agricultura, onde predomina o cultivo do arroz irrigado no verão. A introdução da soja em rotação ao arroz nessas áreas tem aumentado nos últimos anos. Inicialmente, a rotação de culturas visou, fundamentalmente, o controle de plantas daninhas e de outras pragas prejudiciais ao arroz.
Tipo: Folhetos
Palavras-chave: Soja; Solo Hidromórfico.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126892

Dinâmica espaço temporal do uso e cobertura das terras na Hileia baiana.
Provedor de dados: 14
Autores: TORRESAN, F. E.; ALBUQUERQUE, N. C. B.; ASSIS, A. C. C. de.
Tipo: Folhetos
Palavras-chave: Mata Atlântica; Mata; Cobertura do Solo; Floresta.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129405

Análise da folga de produtividade na produção de grãos no Brasil em nível estadual.
Provedor de dados: 14
Autores: RAMOS, M. Y.; GARAGORRY, F. L.
O trabalho tem como objetivos: descrever e aplicar um método alternativo de estimação da produtividade potencial, originalmente proposto para o nível nacional (Ramos; Garagorry, 2018); estimar anualmente a magnitude da folga de produtividade dos grãos (como agregado) em nível estadual, bem como as distribuições das contribuições mesorregionais para sua formação; examinar a dinâmica dessas distribuições espaciais como indicativa da velocidade de mudanças intraestaduais na composição das folgas estimadas; e, no conjunto do País, detectar mesorregiões que, apresentando situações extremas, mereceriam estudos mais detalhados ou ações específicas. Espera-se, assim, ilustrar a utilidade da análise de folga de produtividade, segundo a abordagem aplicada, para o...
Tipo: Livros
Palavras-chave: Folga de produtividade; Análise Estatística; Produção de Sementes; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123966

Habituação de novilhas Zebuínas no pré-parto para entrar na sala de ordenha: avaliação qualitativa.
Provedor de dados: 14
Autores: FERREIRA, I. C.; SILVA, P. M. R. S.; MALAQUIAS, J. V.; FONSECA NETO, A. M. da; OLIVEIRA, S. A. S.; PINHO, G. A. S.; MARTINS, C. F.
Tipo: Folhetos
Palavras-chave: Bem-Estar; Animal; Gado Leiteiro; Ordenha.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131203

The role of agriculture in mitigating greenhouse gas emissions.
Provedor de dados: 14
Autores: MADARI, B. E.; CUADRA, S. V.; OLIVEIRA, P. P. A.; HIGA, R. C. V.; RAMOS, N. P.; ANDRADE, C. A. de; KEMENES, A.; GONDIM, R. S.
Introduction. Agriculture and livestock. Energy crops. Forestry sector. Ecological systems. Fish farming. Final considerations.
Tipo: Parte de livro
Palavras-chave: Mitigação de emissão de gases do efeito estufa; Agricultura; Efeito Estufa; Carbono; Mudança Climática; Agriculture; Greenhouse gas emissions; Global warming; Climate change; Soil organic carbon; Carbon sequestration.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128223

Exportações de carne bovina em alta e oportunidades à vista.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Carne bovina; Boletim semanal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125477

Hortaliça como comprar, conservar e consumir: brócolis.
Provedor de dados: 14
Autores: TAVARES, S. A.; MELO, M. F. de; LANA, M. M.; SANTOS, F. F. dos; MATOS, M. J. L. F.
Brócolis. Como comprar. Como conservar. Como consumir. Talharim com brócolis. Bolo salgado com brócolis.
Tipo: Folders
Palavras-chave: Brócolo; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125649

Coinoculação da soja com Bradyrhizobium e Azospirillum na safra 2019/2020 no Paraná.
Provedor de dados: 14
Autores: PRANDO, A. M.; OLIVEIRA, A. B. de; LIMA, D. de; POSSAMAI, E. J.; REIS, E. A.; NOGUEIRA, M. A.; HUNGRIA, M.; CONTE, O.
Tipo: Folhetos
Palavras-chave: Soja; Fixação de Nitrogênio; Soybeans; Nitrogen fixation.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129470

Com mais agricultura no diesel, todos ganham.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000984392/com-mais-agricultura-no-diesel-todos-ganham.html.
Tipo: Artigo na mídia
Palavras-chave: Biocombustível.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121476

Laranja é tudo de bom, da casca ao bagaço.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000981121/laranja-e-tudo-de-bom-da-casca-ao-bagaco.html.
Tipo: Artigo na mídia
Palavras-chave: Citricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129597

Potencial de agentes biológicos para o controle de pragas da cultura do arroz irrigado por inundação na região subtropical do Brasil
Provedor de dados: 14
Autores: MARTINS, J. F. da S.; NUNES, C. D. M.; ROSA, A. P. S. A. da; MATTOS, M. L. T.; PAZINI, J. DE B.; FILIPPI, M. C. C. de.
Esta publicação objetiva divulgar resultados preliminares do efeito de RPCV às plantas e a pragas-chave (de maior potencial de dano) da cultura, no referido agroecossistema.
Tipo: Folhetos
Palavras-chave: Arroz.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127812

PONTO ideal de colheitas para cafés especiais: o uso do grau brix.
Provedor de dados: 14
Este vídeo mostra como reconhecer o ponto ideal para colheita do café, através do uso do Grau Brix.
Tipo: Filmes
Palavras-chave: Grau Brix; Relação sólido-solúvel; Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon; Coffea Canephora; Época de Colheita; Pratica Cultural; Açúcares; Medição; Adoção de Inovações; Transferência de Tecnologia; Harvesting; Plant cultural practices; Sugar content; Measurement; Innovation adoption; Technology transfer.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130934

Disponibilizando séries temporais de índices vegetativos em aplicações cliente a partir da API SATVeg.
Provedor de dados: 14
Autores: SPERANZA, E. A.; VACARI, I.; BARBOSA, L. A. F.; ESQUERDO, J. C. D. M.; ANTUNES, J. F. G.; COUTINHO, A. C.
Resumo. As séries temporais de dados multiespectrais do sensor MODerate Resolution Imaging Spectroradiometer (MODIS) permitem gerar perfis temporais de índices vegetativos para realização de análises. O Sistema de Análise Temporal da Vegetação (SATVeg), desenvolvido pela Embrapa Informática Agropecuária, permite ao usuário final gerar esses perfis utilizando diferentes parâmetros, pré-filtros e filtros. A API SATVeg foi desenvolvida e incorporada à plataforma de APIs da Embrapa (AgroAPI) com o intuito de disponibilizar os dados fornecidos pelo SATVeg em um formato passível de ser utilizado por empresas que desejam incorporar esses dados em seus sistemas proprietários e agregar valor ao seu produto final.
Tipo: Folhetos
Palavras-chave: API SATVeg; Plataforma AgroAPI; Séries temporais de índices vegetativos.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127934

IMPORTÂNCIA do serviço de quarentena vegetal: programa 9: Norte.
Provedor de dados: 14
O Prosa Rural desta apresenta o Serviço de Quarentena Vegetal da Embrapa. O pesquisador Norton Benito, da Embrapa Recursos Genéticos e Biotecnologia, explica a importância e o funcionamento desse serviço, que tem a função de criar uma barreira fitossanitária de modo a impedir que entrem no Brasil pragas provenientes de outros países. O ouvinte vai saber também como baixar, gratuitamente, o livro Priorização de Pragas Quarentenárias Ausentes no Brasil, fruto de uma parceria da Embrapa com o Departamento de Sanidade Vegetal do Mapa
Tipo: Gravações de som
Palavras-chave: Quarentena; Praga Quarentenária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120747

Manejo de pragas na cultura do sorgo sacarino: etapa crítica para o sucesso da lavoura.
Provedor de dados: 14
Autores: MENDES, S. M.; SOUZA, C. da S. F.; VIANA, P. A.; SIMEONE, M. L. F.; OLIVEIRA, I. R. de; PARRELLA, R. A. da C.
Este trabalho visa facilitar o entendimento sobre os insetos-praga em lavouras de sorgo e apresentar algumas estratégias de Manejo Integrado de Pragas (MIP), voltados às particularidades do cultivo do sorgo sacarino. Como o sorgo sacarino é uma cultura energética, o trabalho contribui para o atendimento do Objetivo 7: ?Assegurar o acesso confiável, sustentável, moderno e a preço acessível à energia para todos?. Apresenta informações demandadas pela cadeia energética para um sistema de produção de sorgo sacarino, contendo recomendações para o manejo de pragas mais adequado ao seu cultivo visando fornecer matéria-prima de alta qualidade para suprir a demanda energética do país.
Tipo: Folhetos
Palavras-chave: Selo ODS 7; Sustentabilidade; Objetivo de desenvolvimento sustentável; Agenda 2030; Praga de Planta; Sorghum Bicolor; Inseto; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125164

A preservação da biodiversidade pela família Santos: Povoado de Mangueira, Lima Campos, MA.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122854

Hortaliça não é só salada. Constipação intestinal.
Provedor de dados: 14
Autores: FRANZ, R. S.; LANA, M. M.
O que é constipação intestinal? Quais hortaliças podem ser consumidas por pessoas com constipação intestinal? Quais formas de preparo de hortaliças devem ser evitadas por pessoas com constipação intestinal? Hábitos saudáveis para evitar a constipação intestinal. Constipação intestinal e dieta. Receitas saborosas para pessoas com constipação intestinal.
Tipo: Folders
Palavras-chave: Hortaliça; Habito Alimentar; Saúde.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129104

Tecnologia BioAS: tecnologia de bioanálise de solo Embrapa como a mais nova aliada para a sustentabilidade agrícola.
Provedor de dados: 14
Autores: EMBRAPA CERRADOS.
A BioAS é uma tecnologia desenvolvida pela Embrapa que agrega o componente biológico às análises de rotina de solos. A BioAS consiste na análise das enzimas arilsulfatase e beta-glicosidase, associadas aos ciclos do enxofre e do carbono, respectivamente. Por estarem relacionadas, direta ou indiretamente, ao potencial produtivo e à sustentabilidade do uso do solo, essas enzimas funcionam como bioindicadores e ajudam a avaliar a saúde dos solos.
Tipo: Folders
Palavras-chave: Bioanalise do solo; Saúde do solo; Sustentabilidade; Análise do Solo; Enzima.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124143

Teores de capsaicinoides em pimenta habanero 'BRS Nandaia' cultivada em telado e campo.
Provedor de dados: 14
Autores: PILON, L.; RIBEIRO, C. S. da C.; SOUZA, D. G. de; SOARES, J. de S.; SANTOS, K. G. dos.
O objetivo deste estudo foi avaliar o conteúdo de capsaicinoides em frutos de habanero, cultivar BRS Nandaia, cultivada em telado e em campo aberto.
Tipo: Folhetos
Palavras-chave: Cultivar BRS Nandaia; Capsaicina; Dihidrocapsaicina; Nordihidrocapsaicina; Capsicum Chinense; Sistema de Cultivo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125651

Catálogo de Videiras (Vitis spp.) conservadas na Embrapa Semiárido: uvas para processamento.
Provedor de dados: 14
Autores: LEAO, P. C. de S.
A cultura da videira (Vitis spp.) é uma das mais importantes do Brasil. O país é um dos líderes mundiais na produção de uvas, com destaque para o Submédio do Vale do São Francisco, região que produz uvas para os mercados internos e externo, chegado a exportar para os Estados Unidos e países da União Europeia. O destaque do Submédio do Vale do São Francisco na produção de uvas é atribuído principalmente ao emprego de tecnologias como irrigação por gotejamento, fertirrigação e o emprego de cultivares adaptadas às condições edafoclimáticas da região. Tudo isso foi possível devido a investimentos em pesquisas científicas, um dos pilares para o desenvolvimento sustentável. Neste cenário, destaca-se a Embrapa Semiárido, que tem como um dos principais objetivos...
Tipo: Livros
Palavras-chave: Videira; Melhoramento genético; Vale do São Francisco; Uva; Variedade; Comportamento de Variedade; Banco de Germoplasma; Melhoramento Genético Vegetal; Grapes; Genetic improvement; Breeding and Genetic Improvement.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130651

Novas ferrovias devem melhorar escoamento das safras.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000999629/novas-ferrovias-devem-melhorar-escoamento-das-safras.html
Tipo: Artigo na mídia
Palavras-chave: Logísitca agropecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126411

COMO iniciar um criatório comercial de catitu ou cateto: programa 11: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre como o produtor pode iniciar um criatório comercial de caititu, também conhecido como cateto, em todas as regiões do País. Ao acompanhar a pesquisadora Natália Inagaki de Albuquerque, da Embrapa Amazônia Oriental, o ouvinte vai conhecer as características desse animal silvestre da fauna brasileira, relacionadas, entre outras, à alimentação, sanidade e reprodução. O programa também aborda a legislação pertinente para a criação de animais silvestres.
Tipo: Gravações de som
Palavras-chave: Produtor; Animal Selvagem; Legislação; Queixada; Criação em Cativeiro.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121487

Rochagem é legal e abrange 2 milhões de hectares.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000985920/rochagem-e-legal-e-abrange-2-milhoes-de-hectares.html.
Tipo: Artigo na mídia
Palavras-chave: Pó de rocha; Fertilidade do Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121571

Amostragem do solo.
Provedor de dados: 14
Autores: BRASIL, E. C.; CRAVO, M. da S.; VELOSO, C. A. C.
Tipo: Parte de livro
Palavras-chave: Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127235

COMO montar um desidratador de alimentos de baixo custo: programa 14: Sul.
Provedor de dados: 14
O Prosa Rural desta semana ensina como fazer um desidratador de alimentos, gastando apenas trinta por cento do que se pagaria por um similar industrial, com a mesma capacidade. Quem fala sobre essa tecnologia, que supre uma demanda da pequena produção, é o pesquisador Félix Cornejo, da Embrapa Agroindústria de alimentos. Noções de Boas Práticas de Processamento de Alimentos também estão no programa, que ainda informa como baixar o manual "Construa Você Mesmo um Desidratador de Alimentos", no site da Embrapa.
Tipo: Gravações de som
Palavras-chave: Desidratador; Pequena produção; Alimento; Processamento; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122022

Solos do estado do Pará.
Provedor de dados: 14
Autores: GAMA, J. R. N. F.; VALENTE, M. A.; OLIVEIRA JUNIOR, R. C. de; CRAVO, M. da S.; CARVALHO, E. J. M.; RODRIGUES, T. E.
Tipo: Parte de livro
Palavras-chave: Solo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127233

Manual para uso de animais para fins experimentais na Embrapa Gado de Corte.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: Bioética; Biotério; Legislação; Projeto de Pesquisa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124505

TERRAMZ: conhecimento compartilhado para gestão territorial local na Amazônia.
Provedor de dados: 14
Autores: XAUD, H. A. M.; XAUD, M. R.; FRANKE, I. L.; OLIVEIRA, T. K. de; MELO, A. M. R. de.
Tipo: Folders
Palavras-chave: Degradação florestal; Gestão Territorial Local; Fundo Amazônia; Uso da Terra; Efeito Estufa.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121725

Otimização de metodologia baseada em T-RFLP para estudo da microbiota rizosférica de milho.
Provedor de dados: 14
Autores: CAMPOLINO, M. L.; OLIVEIRA, R. G. de; SOUSA, M. de P.; LANA, U. G. de P.; GOMES, E. A.; SOUSA, S. M. de.
O estudo da diversidade das comunidades microbianas rizosféricas tem grande importância para a compreensão de diferentes sistemas ecológicos e agrícolas. As técnicas moleculares baseadas em genes 16S rRNA, como o T-RFLP, são metodologias independentes de cultivo, robustas e reproduzíveis, que, além de identificar o perfil da comunidade microbiana, refletem a composição das populações numericamente dominantes em uma amostra. O objetivo deste trabalho foi otimizar a metodologia de análise da técnica T-RFLP para a avaliação da diversidade bacteriana da rizosfera de genótipos de milho cultivados sob diferentes condições de fertilização fosfatada. Foram propostas alterações no processo de amplificação do gene 16S rRNA, na digestão do fragmento amplificado, na...
Tipo: Folhetos
Palavras-chave: Comunidade microbiana; Fertilização fosfatada; Microbioma; Zea Mays; Rizosfera.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126612

Porta-enxertos para laranjeira 'Pera' recomendados para o polo citrícola dos Tabuleiros Costeiros da Bahia e de Sergipe.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; CARVALHO, L. M. de; TEODORO, A. V.; BARROS, I. de; SOARES FILHO, W. dos S.; GIRARDI, E. A.; PASSOS, O. S.; CARVALHO, L. J. L. de.
Tipo: Folhetos
Palavras-chave: Laranja; Fruta Cítrica; Citricultura; Porta Enxerto; Economia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127521

Qual a vantagem da segunda safra para o produtor?
Provedor de dados: 14
Autores: KARAM, D.
Tipo: Artigo na mídia
Palavras-chave: Zea Mays; Safrinha.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126587

Águas do São Francisco chegam às cidades, mas campo ainda espera.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000996947/aguas-do-sao-francisco-chegam-as-cidades-mas-campo-ainda-espera.html.
Tipo: Artigo na mídia
Palavras-chave: Transposição do rio.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125116

Condições meteorológicas e sua influência na safra vitícola de 2020 em regiões produtoras de vinhos finos do Sul do Brasil.
Provedor de dados: 14
Autores: ALVES, M. E. B.; TONIETTO, J.; ZANUS, M. C.
A publicação descreve o comportamento meteorológico ocorrido nas principais regiões vitivinícolas do Sul do Brasil, na safra de 2020, analisando seus efeitos potenciais sobre a produção e a qualidade das uvas destinadas à elaboração de vinhos finos. As regiões vitivinícolas incluem a Serra Gaúcha, Campanha Gaúcha, Serra do Sudeste, Campos de Cima da Serra e Planalto Catarinense.
Tipo: Folhetos
Palavras-chave: Vitícola; Vinho fino; Sul; Brasil; Vitivinícolas; Serra Gaúcha; Campanha Gaúcha; Serra do Sudeste; Campos de Cima da Serra; Planalto Catarinense; Meteorologia; Vinho; Uva; Viticultura; Safra; Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124030

Agosto, mês de fogo e desgosto, pede atenção redobrada na roça.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000997710/agosto-mes-de-fogo-e-desgosto-pede-atencao-redobrada-na-roca.html.
Tipo: Artigo na mídia
Palavras-chave: Queimadas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125118

Caracterização de propriedade modal e levantamento de custos de produção de peixes redondos na região de Araguatins/TO.
Provedor de dados: 14
Autores: MUNOZ, A. E. P.; MATAVELI, M.; SOBREIRA, C. B.; LIMA, J. R.; VOGADO, G. R.
Em 21 de novembro de 2019, no município de Araguatins, na região Norte do Tocantins, foi realizado painel para levantamento de custos da produção aquícola da região. Este painel faz parte do projeto Sistema de Inteligência Territorial Estratégica da Aquicultura (SITE Aquicultura) financiado pelo Fundo Amazônia, desenvolvido pela Embrapa em parceria com o Instituto de Desenvolvimento Rural do Estado do Tocantins (Ruraltins), e contou com a participação de 11 pessoas, entre produtores e técnicos da região. O painel foi realizado com o objetivo de caracterizar a propriedade modal e levantar dados sobre os custos da produção de peixes da região.
Tipo: Fascículos de periódicos
Palavras-chave: Araguatins-TO; Sistema de Produção; Peixe; Custo de Produção.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128748

Macaúba: beneficiamento de macaúba para maior rendimento de óleo.
Provedor de dados: 14
Autores: FAVARO, S. P.
Tipo: Folders
Palavras-chave: Ventilação forçada; Biomassa; Macaúba.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123225

TECNOLOGIAS para a bananicultura em regiões secas: programa 23: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana, apresentado pela Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), fala sobre as tecnologias para a bananicultura em regiões secas, a partir do cultivo e evolução da bananicultura no Norte de Minas Gerais - região de clima semiárido. As pesquisadoras Polyanna Oliveira e Maria Geralda Vilela Rodrigues, ambas da EPAMIG, trazem para o programa as tecnologias que proporcionaram o desenvolvimento e a profissionalização da bananicultura no Norte mineiro, fazendo com que a região se tornasse uma produtora de destaque.
Tipo: Gravações de som
Palavras-chave: Clima semiárido; Banana; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123581

USO de dietas quentes para acelerar engorda de bovinos e reduzir pegada de Carbono: programa 34: Centro-Oeste/Sudeste.
Provedor de dados: 14
Esta semana, o Prosa Rural fala sobre o uso de dietas quentes para acelerar a engorda de bovinos e reduzir a pegada de carbono no ambiente. As dietas quentes são consideradas eficientes porque fazem com que o animal acelere a deposição de gordura, chegando ao peso ideal de maneira rápida. São dietas que contêm alta porcentagem de concentrado e menor quantidade de fibras - no caso, a pastagem. No programa desta semana, o pesquisador da Embrapa Pecuária Sudeste, Sérgio Raposo, explica com detalhes o que são as dietas quentes e como podem ser usadas de maneira adequada para melhorar o ganho de peso do rebanho bovino.
Tipo: Gravações de som
Palavras-chave: Bovino; Dieta; Engorda; Ganho de Peso; Carbono.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124744

Como vai o fogo pelo mundo e na Amazônia?
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://revistaoeste.com/como-vai-o-fogo-pelo-mundo-e-na-amazonia/
Tipo: Artigo na mídia
Palavras-chave: Queimadas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125131

HORTALIÇAS em revista. Hortas em pequenos espaços: dicas para cultivar hortaliças em varandas e quintais.
Provedor de dados: 14
Em tempo de isolamento social, aumenta a procura por cultivo de hortas em quintais e varandas. Coronavírus: cuidados no processamento e consumo de hortaliças. Crise do coronavírus afeta exportações e importações brasileiras de hortaliças. Principais impactos da crise do coronavírus sobre as cadeias produtivas de hortaliças. As mudanças ambientais e a saúde humana: impactos da degradação ambiental sobre surtos de doenças infecciosas. Embrapa publica: guia para identificação de inimigos naturais de pragas em cultivos de hortaliças. Nossa despedida ao primeiro chefe-geral da Embrapa Hortaliças. Feijão-vagem: hortaliça nutritiva e de fácil preparo para incrementar suas receitas. BRS Acarijó 56: mandioquinha-salsa recomendada para processamento industrial.
Tipo: Fascículos de periódicos
Palavras-chave: Embrapa Hortaliças; Horta Caseira.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124199

Conservação in vitro de sementes de Passiflora alata, acesso BGP220.
Provedor de dados: 14
Autores: JUNGHANS, T. G.
O maracujá-doce (Passiflora alata Curtis) é uma espécie nativa do Brasil e tem importância econômica para o consumo de frutos frescos (in natura), além de ser utilizada como ornamental. O objetivo desse trabalho foi avaliar as condições in vitro no armazenamento de sementes de mara-cujá-doce, acesso BGP220, visando à conservação em banco de germoplas-ma. Foi avaliada a germinação de sementes recém-colhidas e após armaze-namento com ou sem arilo por um ano, e por dois anos em meio de cultivo in vitro sob duas temperaturas, 25 oC e 10 oC. As sementes recém-colhidas de Passiflora alata, acesso BGP220, apresentam dormência, que é supera-da pelo armazenamento em meio de cultivo in vitro por um ano. É possível armazenar em meio de cultivo in vitro por um ano...
Tipo: Folhetos
Palavras-chave: Cultura In Vitro; Semente; Maracujá; Conservação; Germinação; Recurso Genético; Germoplasma.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121927

Caracterização físico-química do filme de quitosana diluída em ácido acético para pulverização em plantas.
Provedor de dados: 14
Autores: PORTO, F. G. da S.; CAMPOS, A. D.; ANTUNES, I. F.; GARCIA.
Filmes de quitosana diluída em ácido acético autossuportados foram avaliados quanto às suas propriedades de fotoproteção, permeação ao vapor d?água e resistência à água e à degradação térmica. Soluções aquosas contendo 10,0; 3,0; 1,0 e 0,5 g L-1 de quitosana, pulverizadas sobre a superfície foliar de feijão, produziram bom recobrimento. Os filmes apresentaram estrutura semicristalina, estabilidade em água até sete dias após imersão, grau de inchamento de 400% em massa e permeabilidade ao vapor d?água de 12 g m-1 h-1. Os filmes foram termicamente estáveis até 300 °C e capazes de bloquear parcialmente as radiações UVC e UVB. A absortividade molar em função do comprimento de onda permite a formulação dos filmes com diferentes espessuras e concentrações, de...
Tipo: Folhetos
Palavras-chave: Quitosana; Phaseolus Vulgaris; Pulverização; Radiação Solar.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133873

Calendário de fruteiras na Amazônia nativas e exóticas.
Provedor de dados: 14
Autores: NASCIMENTO, W. M. O. do; GUIMARAES, K. S. C.
Este calendário de frutíferas é composto de um conjunto de espécies que inclui nativas amazônicas com uso consagrado, nativas promissoras, exóticas de cultivo atávico e exóticas de cultivo recente, totalizando 21 frutíferas. Nativas amazônicas com uso consagrado: açaí (Euterpe oleracea, Arecaceae), cupuaçu (Theobroma grandiflorum, Malvaceae), castanha-do-brasil (Bertholletia excelsa, Lecythidaceae), bacuri (Platonia insignis, Clusiaceae), taperebá (Spondias mombin, Anacardiaceae) e jenipapo (Genipa americana, Rubiaceae). Nativas amazônicas promissoras: araçá-boi (Eugenia stipitata, Myrtaceae), muruci (Byrsonima crassifolia, Malpighiaceae), uxi (Endopleura uchi, Humiriaceae), pequiá (Caryocar villosum, Caryocaraceae), abiu (Pouteria caimito, Sapotaceae),...
Tipo: Folders
Palavras-chave: Fruta; Planta Exótica; Espécie Nativa; Árvore Frutífera; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122621

Vinhos no Brasil: contrastes na geografia e no manejo das videiras nas três viticulturas do país.
Provedor de dados: 14
Autores: PEREIRA, G. E.; TONIETTO, J.; ZANUS, M. C.; SANTOS, H. P. dos; PROTAS, J. F. da S.; MELLO, L. M. R. de.
O Brasil é o único país do mundo onde há três tipos de viticultura, para produção de uvas, sucos e vinhos. Os dois principais fatores que asseguram essa possibilidade e diferenciam três macrorregiões produtoras são as condições climáticas e o manejo das videiras. Na primeira região, onde se pratica a denominada viticultura tradicional, é realizada em climas temperado e subtropical há mais de um século, nos estados do Sul e Sudeste, onde são produzidos vinhos e sucos nesta viticultura tradicional. A videira é podada e as uvas são colhidas uma vez por ano, assim como ocorre nos outros países produtores do mundo, em ambos os Hemisférios Norte e Sul. A segunda viticultura está localizada no Vale do São Francisco, em clima tropical semiárido, onde são...
Tipo: Folhetos
Palavras-chave: Videira; Brasil; Atividade Socio-econômica; Indicação Geográfica; Tipicidade; Vinhos tropicais; Vinhos de inverno; Vitivinicultura; Vinhos do Brasil; Dupla poda; Vinho; Viticultura; Clima; Clima Temperado; Clima Tropical; Climatologia; Vitis Vinifera; Uva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128174

National Breeding Program of Guzerá Cattle for Milk: Progeny Testing, National Zootechnical Archive and MOET Nucleus Results.
Provedor de dados: 14
Tipo: Livros
Palavras-chave: ABCZ; Bos taurus indicus.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124069

Sustentabilidade: evolução conceitual e aplicações na história recente.
Provedor de dados: 14
Autores: GOMES, J. C. C.; SCHWENGBER, J. E.
Tipo: Parte de livro
Palavras-chave: Desenvolvimento Sustentável; Agricultura Sustentável.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129518

Total de chuvas em março foi o menor dos últimos 26 anos.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
O total de chuvas em março foi igual a 51mm.
Tipo: Artigo na mídia
Palavras-chave: Clima; Climatologia; Clima Tropical; Chuva.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121554

USO de abanadora para diminuir perda de grãos: programa 33: Sul.
Provedor de dados: 14
O Prosa Rural desta semana apresenta três abanadoras de grãos para pequenas propriedades. O ouvinte vai conhecer essas máquinas de pequeno porte, cujos principais benefícios são a redução do trabalho do campo e do tempo de limpeza dos grãos de feijão, arroz, milho e soja. O pesquisador José Geraldo da Silva fala sobre cada um dos modelos, que variam conforme o perfil dos produtores e tem condições de ser construídos por eles por eles próprios.
Tipo: Gravações de som
Palavras-chave: Arroz; Feijão; Grão; Milho; Perda da Produção; Produtor; Propriedade Rural; Soja.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124762

Manejo de ovos em chocadeiras comunitárias como ferramenta de análise dos sistemas de produção de galinhas de capoeira e processo de incubação.
Provedor de dados: 14
Autores: SA, C. O. de; SA, J. L. de; CURADO, F. F.; SANTOS, A. da S. dos; SOUZA, F. A.
Tipo: Folhetos
Palavras-chave: Ovo; Galinha; Galinha Caipira; Chocadeira.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129408

INDICADORES: LEITE E DERIVADOS, v. 11, n. 99, 2020.
Provedor de dados: 14
Autores: CARVALHO, G. R.; ROCHA, D. T. da; CARNEIRO, A. V.
O preço líquido do leite ao produtor iniciou 2020 com leve alta de 1,09%, fechando a R$1,368/litro. Na comparação anual, o preço de janeiro foi R$0,08 maior em relação ao mesmo mês de 2019, alta de 6,60%. Apesar da melhora no preço recebido pelo leite, o aumento no preço do milho comprometeu mais uma vez a relação de troca leite/mistura. Em janeiro foram necessários mais de 45 litros de leite para aquisição de uma saca de 60 kg de mistura (70% milho e 30% farelo de soja), alta de 2% no mês. Em relação a janeiro de 2019, a relação de troca piorou 14%, tendo em vista que naquele mês eram necessários menos de 40 litros de leite para aquisição dessa mesma saca. No varejo, após pequena valorização em dezembro, os preços do leite longa vida e do queijo voltaram...
Tipo: Fascículos de periódicos
Palavras-chave: Captação de leite; Leite cru; Leite resfriado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120236

INFORMATIVO agropecuário de Rondônia: n. 2, Abril/2020.
Provedor de dados: 14
Tipo: Folhetos
Palavras-chave: Grãos; Produção; Mandioca; Banana.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122072

MANEJO conservacionista para diversificação da produção agrícola: programa 41: Norte.
Provedor de dados: 14
O Prosa Rural dessa semana fala sobre as vantagens do modelo conservacionista de manejo do solo. O pesquisador Falberni de Souza, da Embrapa Acre, apresenta um conjunto de técnicas e práticas que podem recuperar e manter a qualidade do solo. Ele explica o que é preciso fazer para recuperar uma área degradada e torná-la produtiva outra vez. Entre as orientações, a adoção do plantio direto, das plantas de cobertura e da rotação de culturas. Para saber mais sobre esse manejo, que conta com o apoio do Fundo Amazônia, não perca o Prosa Rural.
Tipo: Gravações de som
Palavras-chave: Fundo amazônia; Produção Agrícola; Manejo do Solo; Planta de Cobertura; Plantio Direto; Rotação de Cultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126160

Brasil investe em café gourmet.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000980061/brasil-investe-em-cafe-gourmet-.html.
Tipo: Artigo na mídia
Palavras-chave: Cafeicultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129611

A recuperação da roça por meio de capoeiras de sabiá da família Soares: Povoado de São Manoel, Lago do Junco, MA.
Provedor de dados: 14
Autores: PORRO, R.; NASCIMENTO, A. S.; MILLER, R. P.; SOUSA, R. C. de; PIRATOBA, D. N. M.
Tipo: Livros
Palavras-chave: Médio Mearim; Extrativismo sustentável; Boas práticas; Agricultura Familiar; Manejo.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122791

A necessidade de inovar o setor florestal.
Provedor de dados: 14
Autores: SCHAITZA, E. G.
Tipo: Artigo na mídia
Palavras-chave: Setor Florestal; Inovação.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121391

Desempenho agronômico de genótipos de Café Arábica resistentes a ferrugem no Cerrado Central .
Provedor de dados: 14
Autores: VEIGA, A. D.; GUERRA, A. F.; BARTHOLO, G. G. F.; ROCHA, O. C.; RODRIGUES, G. C.; CARVALHO, M. A. de F.
Resumo ? A avaliação de genótipos resistentes à ferrugem, para diferentes ambientes, visa reduzir custos de produção, riscos aos trabalhadores rurais e ao ambiente, com possibilidade no aumento de renda. O trabalho foi realizado na Embrapa Cerrados, Planaltina, DF, em sistema de produção irrigado, com o objetivo de avaliar genótipos de café arábica quanto às características agronômicas nas condições do Cerrado central. A área possui altitude de 1.050 m, com Latossolo Vermelho Escuro e textura argilosa. Os tratamentos foram compostos por 25 cultivares, 4 progênies resistentes à ferrugem, além de 3 cultivares suscetíveis, utilizadas como controle. O espaçamento utilizado foi de 3,50 m x 0,5 m entre plantas, em sistema irrigado por pivô central. Aos 3 anos de...
Tipo: Folhetos
Palavras-chave: Café Arábica; Desempenho agronômico; Cafeicultura; Melhoramento Genético Vegetal; Cerrado.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130783

GeoMatopiba: Inteligência Territorial Estratégica para o Matopiba.
Provedor de dados: 14
Folder com informações sobre a plataforma "GeoMatopiba: Inteligência Territoril Estratéfica para o Matopiba. Ela disponibiliza, de forma interativa e integrada, mapas e dados sobre o Matopiba, acrônimo criado com as iniciais dos estados do Maranhão, Tocantins, Piauí e Bahia e que identifica uma região de cerrado com forte expansão agropecuária nas últimas décadas. A plataforma conta com dois pontos de entrada: GeoWeb Matopiba e Painéis interativos.
Tipo: Folders
Palavras-chave: Empregos; Soluções tecnológicas; Fronteira Agrícola; Crédito Agrícola; Crédito Rural.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122591

Estimativa do volume de madeira de eucalipto em sistema agrossilvipastoril.
Provedor de dados: 14
Autores: MORAES NETO, S. P. de; PULROLNIK, K.; VILELA, L.; SOUZA, K. W. de; GUIMARAES JUNIOR, R.
Tipo: Folhetos
Palavras-chave: Eucalyptus Urophylla; Eucalyptus Grandis; Madeira; Agrossilvicultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124566

Produção de sementes é um grande desafio para o Brasil.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000983966/producao-de-sementes-e-um-grande-desafio-para-o-brasil.html.
Tipo: Artigo na mídia
Palavras-chave: Melhoramento Genético Vegetal.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121473

Manual de biossegurança da Embrapa Milho e Sorgo.
Provedor de dados: 14
Autores: VASCONCELOS, M. J. V. de; LANA, U. G. de P.; CARNEIRO, A. A.
A Lei de Biossegurança Brasileira, Lei n°. 11.105/2005 de 24 de março de 2005 define organismo geneticamente modificado (OGM) como qualquer ser vivo que teve seu material genético (DNA/RNA) modificado por meio de qualquer técnica de DNA recombinante ou engenharia genética. E em consequência do desenvolvimento desses organismos surgiu o conceito ?Biossegurança?, com o intuito de estabelecer normas técnicas para manejo, comercialização, consumo, armazenamento, liberação e descarte de OGMs, permitindo, ao mesmo tempo, o desenvolvimento sustentado da Biotecnologia moderna e a proteção da saúde humana e animal e do meio ambiente. Baseado nessas informações, foi elaborado este Documento que é mais uma etapa de um esforço que vem sendo realizado pela Comissão...
Tipo: Folhetos
Palavras-chave: Biotecnologia; Engenharia Genética; Saúde Pública.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126613

Produção de Biscoitos Salgados do Tipo Snack Cracker com Corante Natural à Base de Melancia.
Provedor de dados: 14
Autores: GALDEANO, M. C.; GOMES, F. dos S.; TONON, R. V.; ALMEIDA, E. L. de; MOULIN, L. C.; SÁ, D. de G. C. F. de.
Biscoitos do tipo snack cracker são produtos de conveniência amplamente consumidos por pessoas de todas as idades. A possibilidade de adição de corantes naturais para torná-los mais atrativos, especialmente por crianças, atende a uma demanda crescente pela redução de aditivos sintéticos. Neste documento foram apresentados a formulação e o modo de fazer dos biscoitos snack cracker adicionados de suco concentrado de melancia, que contém o pigmento licopeno. Foi verificado que os produtos apresentam excelentes características de qualidade e estabilidade durante armazenagem.
Tipo: Folhetos
Palavras-chave: Produtos de conveniência; Licopeno; Aditivos naturais; Food technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128744

BRS FC406 feijão carioca.
Provedor de dados: 14
A cultivar BRS FC406, apresenta grãos grandes e com alto potencial produtivo; estabilidade de produção e qualidade comercial, moderadamente resistente à antracnose e à mancha angular.
Tipo: Folders
Palavras-chave: Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Antracnose; Mancha Angular.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127035

Eficiência de fungicidas para controle de brusone de trigo: resultados dos ensaios cooperativos, safra 2019.
Provedor de dados: 14
Autores: SANTANA, F. M.; LAU, D.; SBALCHEIRO, C. C.; SUSSEL, A. A. B.; VENANCIO, W. S.; SCHIPANSK, C. A.; CHAGAS, D. F.
A brusone do trigo, causada pelo fungo Pyricularia oryzae Cavara [teleomor-fo: Magnaporthe oryzae (T.T. Hebert) M.E. Barr], tem sido considerada uma doença importante desde o final dos anos 80, causando altas perdas de pro-dutividade em culturas no centro-sul brasileiro. O fungo pode infectar todos os órgãos aéreos da planta, incluindo folhas, colmos e espigas, mas a forma mais destrutiva da doença ocorre quando infecções precoces incidem nas espigas, podendo afetar parcial ou totalmente a ráquis. As espigas infecta-das apresentam branqueamento e produzem grãos ?chochos?, deformados, pequenos e com baixo peso específico, ocasionando redução do rendimento final e da qualidade de grãos, levando a perdas significativas nas lavouras. O patógeno tornou-se...
Tipo: Folhetos
Palavras-chave: Brusone do trigo; Fungo Pyricularia oryzae Cavara; Fungo; Brusone; Trigo; Doença de Planta; Doença Fúngica; Doença.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129991

Let us no longer be oblivious: paths to weathering the next storm.
Provedor de dados: 14
Autores: ARBOUR, N.; LOPES, M. A.; PALAZZO, A.; SHUKLA-JONES, A.; TULLY, C.; TRUDEL, J-L.
Abstract: Policymakers and stakeholders across academia, industry, and governments internationally are scrambling to address systemic impacts, using every tool to inform decisions made now for the future; among them, the use of strategic foresight ? imagining what could be alongside what should be.
Tipo: Artigo na mídia
Palavras-chave: Strategic foresight; Decision making; Innovation adoption.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1138632

Brasil tem novo recurso para controlar lagarta-do-cartucho.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000999397/brasil-tem-novo-recurso-para-controlar-lagarta-do-cartucho.html
Tipo: Artigo na mídia
Palavras-chave: Controle de pragas.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126412

BOAS práticas que agregam valor às frutas do Cerrado mineiro: programa 38: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre boas práticas que agregam valor aos frutos do Cerrado mineiro. O engenheiro agrônomo André Dutra, da Embrapa Agroindústria de Alimentos, traz as explicações sobre essas práticas que garantem sanidade aos produtos, autonomia e renda para as comunidades agroextrativistas, e tem tudo para servir como referência para as agroindústrias. O ouvinte vai conhecer ainda o impacto positivo dessas boas práticas, a partir da experiência de quem já as adotou. Para saber mais, não perca o Prosa Rural. O Prosa Rural é o programa de rádio da Embrapa!
Tipo: Gravações de som
Palavras-chave: Agroindústria; Cerrado; Fruto.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125230

Manual de instalação de ensaios participativos para comparação de variedades crioulas.
Provedor de dados: 14
Autores: SANTOS, A. da S. dos; CURADO, F. F.; LIMA, A. C.; BIANCHINI, P. C.; FAGUNDES, R. de C.
Tipo: Folhetos
Palavras-chave: Milho; Feijão; Variedade; Políticas Públicas; Pequeno Produtor.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129388

Recomendações para o manejo da doença casca-preta-do-inhame.
Provedor de dados: 14
Autores: NORONHA, M. de A.; MUNIZ, M. de F. S.
Tipo: Folhetos
Palavras-chave: Inhame; Doença de Planta; Hortaliça.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129414

Oportunidades de mitigação de metano na produção de carne por meio do melhoramento animal.
Provedor de dados: 14
Autores: MERCADANTE, M. E. Z.; BRANCO, R. H.; CYRILLO, J. N. DOS S. G.; CANESIN, R. C.; BONILHA, S. F. M.; SAKAMOTO, L. S.; BERNADES, S.; SOUZA, L. L.; BERNDT, A.; ALBUQUERQUE, L. G. DE.
O objetivo da linha de pesquisa é montar um banco de dados de registros individuais de emissão de metano entérico (CH4, g/dia), ganho médio diário (GMD, kg/dia), consumo de matéria seca (CMS, kg/dia) e peso vivo (PV, kg), de bovinos Nelore após a desmama, para estudos fenotípicos, genético-quantitativos e genômicos de características relacionadas à emissão de metano entérico e suas associações com características de desempenho e de eficiência alimentar. Os experimentos foram realizados em 2011, 2012, e 2018, e serão relatados a seguir. A obtenção de registros individuais de CH4 e das demais características em bovinos Nelore após o desmame está prevista até 2023.
Tipo: Parte de livro
Palavras-chave: Emissão de metano entérico; Desempenho alimentar; Eficiência alimentar; Consumo de matéria seca; Peso vivo; Emissão de CH4; Gado Nelore; Pastagem; Ganho de Peso.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131457

Efeito estufa e sustentabilidade da produção nacional de bovinos de corte.
Provedor de dados: 14
Autores: MALAFAIA, G. C.; BISCOLA, P. H. N.; DIAS, F. R. T.
Boletim Cicarne.
Tipo: Folders
Palavras-chave: Carne bovina; Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125604

IMPORTÂNCIA do serviço de quarentena vegetal: programa 9: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta apresenta o Serviço de Quarentena Vegetal da Embrapa. O pesquisador Norton Benito, da Embrapa Recursos Genéticos e Biotecnologia, explica a importância e o funcionamento desse serviço, que tem a função de criar uma barreira fitossanitária de modo a impedir que entrem no Brasil pragas provenientes de outros países. O ouvinte vai saber também como baixar, gratuitamente, o livro Priorização de Pragas Quarentenárias Ausentes no Brasil, fruto de uma parceria da Embrapa com o Departamento de Sanidade Vegetal do Mapa.
Tipo: Gravações de som
Palavras-chave: Quarentena; Praga Quarentenária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120733

Ocorrência de capim-annoni no banco de sementes do solo de áreas infestadas.
Provedor de dados: 14
Autores: LAMEGO, F. P.; CARATTI, F. C.; PEREZ, N. B.
O objetivo do trabalho foi caracterizar e comparar o banco de sementes do solo de campo nativo infestado por capim-annoni, após anos de adoção do Método Integrado de Recuperação de Pastagens - MIRAPASTO e de sistema de Integração Lavoura-Pecuária ? ILP, através da avaliação da distribuição vertical de sementes da planta indesejável no perfil do solo.
Tipo: Folhetos
Palavras-chave: Eragrostis Plana; Eragrostis Plana Nees; Erva Daninha; Gramínea Forrageira; Semente.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127393

Relatório de avaliação dos impactos do sistema para automação de bibliotecas e recuperação da informação (Ainfo).
Provedor de dados: 14
Autores: MINITTI, A. F.; ANTUNES, J. F. G.
Em 1991, com a popularização de ferramentas digitais, a Empresa Brasileira de Pesquisa Agropecuária (Embrapa) lança a primeira versão de um sistema que visava integrar todas as suas bibliotecas, aumentando a sua capacidade de organização, armazenamento e disponibilização do conhecimento gerado. Denominado de Sistema para Automação de Bibliotecas e Recuperação da Informação (Ainfo), essa tecnologia constitui-se atualmente num importante elo entre a produção científica da Embrapa e os seus mais variados usuários, por meio do acesso gratuito a milhares de obras disponíveis tanto em suas bibliotecas, quanto em sites criados a partir dessa grande base de dados. Esse estudo foi conduzido com o propósito de se estimar os ganhos econômicos, sociais, ambientais e...
Tipo: Folhetos
Palavras-chave: Estudo de impactos; Ainfo; Sistema para Automação de Bibliotecas e Recuperação da Informação; Impacto Econômico; Impacto Ambiental.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127942

NANOEMULSÃO de cera de carnaúba para evitar perda de frutos: programa 19: Norte.
Provedor de dados: 14
O Prosa Rural desta semana apresenta uma tecnologia importante para a conservação pós-colheita de frutos, em geral, e redução do desperdício. É a nanoemulsão de cera de carnaúba. Ao acompanhar o pesquisador Marcos David Ferreira, da Embrapa Instrumentação, o ouvinte vai saber que a conhecida cera de carnaúba agora conta com partículas ultrafinas - chamadas nanopartículas - capazes de preservar a qualidade e prolongar o tempo de vida dos frutos em cerca de 15 dias a mais, em comparação a outros revestimentos.
Tipo: Gravações de som
Palavras-chave: Nanoemulsão; Nanopartícula; Carnaúba; Cera; Desperdício; Fruto; Conservação; Pós-Colheita; Tecnologia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122770

Processing of sweet and bitter cassava.
Provedor de dados: 14
Autores: OLIVEIRA, L. A. de; MOTTA, J. da S.; JESUS, J. L. de; SASAKI, F. F. C.; VIANA, E. de S.
Tipo: Livros
Palavras-chave: Mandioca; Harvesting; Postharvest treatment.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129776

Criatividade e complexidade na nova economia.
Provedor de dados: 14
Autores: LOPES, M. A.
Criatividade e complexidade na economia são temas essenciais na busca por ampliar não apenas riqueza, mas também o bem-estar e a resiliência da sociedade. A bioeconomia entra com vantagem, por ser capaz de combinar de forma sinérgica recursos naturais e tecnologias inovadoras, em modelo de produção de base biológica, limpo e renovável.
Tipo: Artigo na mídia
Palavras-chave: Bioeconomia; Criatividade; Complexidade; Economia; Bioeconomics.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128768

Maracuyá de la Caatinga: Passiflora cincinnata Mast.
Provedor de dados: 14
Autores: ARAÚJO, F. P.; MELO, N. F. de; AIDAR, S. de T.; FALEIRO, F. G.; JESUS, O. N. de.
Tipo: Parte de livro
Palavras-chave: Maracujá; Caatinga.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124055

COMO produzir a carne carbono neutro (CCN): programa 27: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o que é preciso para o pecuarista produzir a carne carbono neutro, a carne diferenciada, que traz o selo CCN. Uma das idealizadoras desta marca-conceito, a pesquisadora Fabiana Villa Alves, da Embrapa Gado de Corte, explica ao ouvinte que essa carne, vinculada aos sistemas silvipastoris, respeita o ambiente, o bem-estar animal, é sustentável, saudável, rentável e tem produção fiscalizada por uma certificadora, habilitada pela Embrapa.
Tipo: Gravações de som
Palavras-chave: Carne carbono neutro; Sistema silvipastoril; Carne; Pecuarista; Certificação de Produto; Beef cattle; Animal welfare; Silvopastoral systems.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124126

Interferência da braquiária no acúmulo de nutrientes em milho.
Provedor de dados: 14
Autores: FONTES, J. R. A.; OLIVEIRA, I. J. de; MORAIS, R. R. de.
O objetivo deste trabalho foi avaliar a interferência de U. brizantha cultivar Xaraés na produção de matéria seca e no conteúdo relativo de macronutrientes na parte aérea de plantas de duas cultivares de milho.
Tipo: Folhetos
Palavras-chave: Milho.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128450

Hortaliça como comprar, conservar e consumir: alface.
Provedor de dados: 14
Autores: MELO, M. F. de; LANA, M. M.; SANTOS, F. F. dos; LUENGO, R. de F. A.; MATOS, M. J. L. F.; TAVARES, S. A.
Alface. Como comprar. Como conservar. Como consumir. Dicas. Molho para salada de alface. Trouxinha de alface.
Tipo: Folders
Palavras-chave: Lactuca Sativa; Economia Domestica; Culinária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125585

Eficiência de fungicidas para o controle da ferrugem-asiática da soja, Phakopsora pachyrhizi, na safra 2019/2020: resultados sumarizados dos ensaios cooperativos.
Provedor de dados: 14
Autores: GODOY, C. V.; UTIAMADA, C. M.; MEYER, M. C.; CAMPOS, H. D.; LOPES, I. de O. N.; DIAS, A. R.; MUHL, A.; WESP-GUTERRES, C.; PIMENTA, C. B.; ANDRADE JUNIOR, E. R. de; MORESCO, E.; KONAGESKI, F. T.; BONANI, J. C.; ROY, J. M. T.; GRIGOLLI, J. F. J.; NUNES JUNIOR, J.; ARRUDA, J. H.; NAVARINI, L.; BELUFI, L. M. de R.; SILVA, L. H. C. P. da; SATO, L. N.; GOUSSAIN JUNIOR, M. M.; SENGER, M.; MULLER, M. A.; DEBORTOLI, M. P.; MARTINS, M. C.; TORMEN, N. R.; BALARDIN, R. S.; MADALOSSO, T.; KONAGESKI, T. F.; CARLIN, V. J.
Tipo: Folhetos
Palavras-chave: Fungicida; Phakopsora Pachyrhizi; Ferrugem; Soja; Soybean rust; Fungicides.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124331

APLICATIVO para gestão de riscos climáticos: programa 18: Sul.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre o Zarc Plantio Certo, um aplicativo que indica ao produtor quais as melhores datas de plantio das culturas agrícolas e as práticas agropecuárias mais recomendadas para regiões e municípios, de acordo com as recomendações do Zoneamento Agrícola de Risco Climático. O pesquisador Eduardo Monteiro e o cientista da computação Silvio Evangelista, da Embrapa Informática Agropecuária, explicam como esse aplicativo pode ajudar o produtor no manejo e acompanhamento da produção agrícola.
Tipo: Gravações de som
Palavras-chave: Risco Climático; Plantio; Produção Agrícola; Produtor; Tecnologia Agrícola.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122774

Zoneamento edáfico da cultura da cebola para a região do entorno do Parque Eólico do município de Casa Nova, BA.
Provedor de dados: 14
Autores: CUNHA, T. J. F.; SA, I. B.; SALVIANO, A. M.; COSTA, N. D.; TAURA, T. A.; GIONGO, V.; MAIA, I. C.; PEREIRA, L. A.
O objetivo deste zoneamento foi identificar as áreas com solos de maior potencial para o plantio da cebola, no entorno do parque eólico do município de Casa Nova, BA. Com o presente zoneamento a Embrapa Semiárido coloca à disposição dos produtores de cebola da região uma ferramenta de auxílio na tomada de decisão quanto à escolha de quais classes de solos com as maiores chances de sucesso para o cultivo da cebola, e com vistas ao uso e manejo sustentável das terras da região.
Tipo: Folhetos
Palavras-chave: Identificação e manejo do solo; Casa Nova; Lago de Sobradinho; Cultivo de cebola; Parque Eólico; Cebola; Hortaliça; Hortaliça de Bulbo; Allium Cepa; Zoneamento Agrícola; Aptidão Climática; Onions; Agricultural zoning; Agricultural soils.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128667

Manga: tecnologia garante a exportação.
Provedor de dados: 14
Autores: MOUCO, M. A. do C.
A manga brasileira, por sua vez, já tem espaço significativo no cenário internacional e é a estrela das exportações de frutas. Segundo o IBGE, em 2019 foram 221,9 mil toneladas, crescimento de 30% em relação ao ano de 2018. Grande parte desta fruta foi cultivada no Vale do São Francisco, região que produz 75% da manga nacional, seguida do Sudeste, com uma fatia de 25%. No Vale do São Francisco, além do clima ser favorável, o emprego de tecnologias modernas nos pomares é o grande diferencial da região.
Tipo: Artigo de periódico
Palavras-chave: Vale do São Francisco; Manga; Exportação; Mercado; Mercado Internacional; Regulador de Crescimento; Mangoes; Marketing.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130110

Código Florestal concilia produção e preservação há 8 anos.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Disponível em: https://tvterraviva.band.uol.com.br/colunistas/evaristo-de-miranda/100000990936/codigo-florestal-concilia-producao-e-preservacao-ha-8-anos.html.
Tipo: Artigo na mídia
Palavras-chave: Preservação ambiental; Agricultura.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123178

Inseminação artificial em suínos no Brasil: biotecnologias e atualidades do mercado
Provedor de dados: 14
Autores: VIANA, C. H. C.; JORGE NETO, P. N.; MARQUES, M. G.
Tipo: Artigo na mídia
Palavras-chave: Suinocultura; Inseminação Artificial.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125656

Produção de sementes de forrageiras tropicais no Brasil.
Provedor de dados: 14
Autores: LANDAU, E. C.; RESENDE, R. M. S.; MATOS NETO, F. da C.
Boletim Cicarne
Tipo: Folders
Palavras-chave: Pecuária.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128703