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| Registros recuperados: 145 | |
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| Bertolin, Danila Comelis; UNESP Ilha Solteira; Sá, Marco Eustáquio de; UNESP; Buzetti, Salatiér; UNESP; Colombo, Adriana de Souza; UNESP; Oliveira, Letícia Lisboa; UNESP; Rodrigues, Graciela Bassan; UNESP. |
| O presente trabalho teve por objetivo avaliar o efeito de cinco doses de P2O5 e quatro doses de K2O, em dois espaçamentos entre linhas, sobre a qualidade das sementes de guandu utilizando uma cultivar de ciclo curto, em Selvíria-Estado do Mato Grosso do Sul. Foram realizadas avaliações de velocidade de germinação, primeira contagem de germinação, germinação, envelhecimento acelerado e emergência de plantas em campo. Para a determinação do efeito dos tratamentos, foi utilizado o delineamento inteiramente casualizado, em fatorial 2x5x4, com quatro repetições. Os tratamentos foram: espaçamentos entre linhas de 30 e 50 cm, doses de P2O5 de 0, 40, 80, 120 e 160 kg há-1 e doses de K2O de 0, 30, 60 e 90 kg há-1. Não houve diferenças significativas entre... |
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Palavras-chave: 5.01.00.00-9 Agronomia Cajanus cajan L. Millsp.; Densidade; Germinação; Emergência de plantas. Cajanus cajan L. Millsp.; Density; Germination; Seedlings field emergence. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5318 |
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| Bertolin, Danila Comelis; UNESP Ilha Solteira; Sá, Marco Eustáquio de; FAE/UNESP; Buzetti, Salatiér; FAE/UNESP; Santiago, Dênis; FAE/UNESP; Barbosa, Rafael Marani; FAE/UNESP. |
| O presente trabalho teve por objetivo avaliar o efeito de cinco doses de fósforo e quatro doses de potássio, em dois espaçamentos entre linhas e em duas épocas de semeadura na produção e qualidade de sementes de guandu (Cajanus cajan L. Millsp), em Selvíria, Estado do Mato Grosso do Sul. Para a determinação do efeito dos tratamentos, foi utilizado o delineamento em blocos casualizados, em fatorial 2x2x5x4, com quatro repetições, sendo os tratamentos 0, 40, 80, 120 e 160 kg ha-1 de P2O5; 0, 30, 60 e 90 kg ha-1 de K2O; espaçamentos de 0,30 e 0,50 m entre linhas e épocas de semeadura, que foram dezembro de 2003 e fevereiro de 2004. Na primeira semeadura, obteve-se maior produtividade, sendo obtido na segunda semeadura maior qualidade de sementes. No... |
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Palavras-chave: 5.01.00.00-9 Agronomia Cajanus cajan; Densidade; Adubação 5.01.03.00-8 Fitotecnia Cajanus cajan; Density; Fertilization. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3554 |
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| Turini, Caio Silva; Universidade Federal de Santa Catarina; Sühnel, Simone; Universidade Federal de Santa Catarina; Lagreze-Squella, Francisco José; Universidade Federal de Santa Catarina; Ferreira, Jaime Fernando; Universidade Federal de Santa Catarina; Melo, Claudio Manoel Rodrigues de; Universidade Federal de Santa Catarina. |
| This study evaluated the effects of larval densities, cultured in flow-through system, in the yield and quantity of larvae. The first experiment compared the larval yield of a flowthrough system (80 larvae mL-1) and a batch system (8 larvae mL-1), which resulted in a higher yield and number of larvae in the flowthrough system, after 23 days. The second experiment compared two larval densities (20 and 45 larvae mL-1) in flowthrough system. The densities affected the yield after 15 and 23 days and the larvae final quantity after all tested times (8, 15, and 23 days). After 23 days of larviculture, the yield was highest for 20 larvae mL-1 and the larval number for 45 larvae mL-1. The third experiment also compared two larval densities (100 and 150 larvae... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.06.03.00-0 bivalve mollusc; Yield; Larviculture; Density. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/23685 |
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| Teixeira, Fábio Andrade; UESB; Bonomo, Paulo; UESB; Pires, Aureliano José Vieira; UESB; Silva, Fabiano Ferreira; UESB; Martins, Giselle Caroline Fernandes; UESB; Cardoso, Elisângela Oliveira; UESB. |
| O objetivo deste trabalho foi avaliar as características estruturais de pastos de Brachiaria decumbens diferidos por 140 dias, visando determinar a estratégia mais adequada de adubação nitrogenada. Foram estudadas quatro estratégias de adubação no início e no final do verão (0-0, 100-0, 50-50, 0-100 kg ha-1 de N), respectivamente, com quatro repetições. Para avaliação das densidades volumétricas, a forragem foi colhida em três estratos: estrato A- acima de 40 cm; B- 20-40 cm; e C- 0-20 cm do solo. O índice de tombamento foi menor (p < 0,05) para a estratégia de adubação com 100 kg ha-1 de N aplicados no final do verão. No estrato B foram observadas maiores (p < 0,05) densidades de forragem total, de lâmina foliar e de colmo verde para estratégia de... |
| Tipo: Pesquisa de campo |
Palavras-chave: Forragicultura e pastagens acamamento; Densidade; Diferimento; Pastagem; Perfilho; Ureia falling; Density; Deferment; Grazing; Tiller; Urea. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10212 |
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| Teixeira, Fábio Andrade; Universidade Estadual do Sudoeste da Bahia; Bonomo, Paulo; Universidade Estadual do Sudoeste da Bahia; Pires, Aureliano José Vieira; Universidade Estadual do Sudoeste da Bahia; Silva, Fabiano Ferreira; Universidade Estadual do Sudoeste da Bahia; Abreu Filho, George; Universidade Estadual do Sudoeste da Bahia; Viana, Pablo Teixeira; Universidade Estadual do Sudoeste da Bahia. |
| The objective of this work was to evaluate the tiller population density in Urochroa decumbens pasture deferred for 95 and 140 days, aiming to determine the best strategy for nitrogen fertilization. Four fertilization strategies at the beginning and end of summer (0-0, 100-0, 50-50, 0-100 kg ha-1 of N) were studied, respectively, with four repetitions. For the pastures deferred for 95 days, the population densities of vegetative tillers were greater (p < 0.05) for the strategy 0-100. At the end of the deferment period, the weight of the vegetative tillers per hectare was greater for the strategy 0-100, followed by the strategy 50-50. The densities of vegetative tillers, evaluated in the pastures deferred for 140 days, were greater (p < 0.05)... |
| Tipo: Pesquisa de campo |
Palavras-chave: Density; Deferment; Grazing; Tiller; Urea. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10243 |
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| Vinatea, Luis; UFSC; Muedas, Walter; UFMA; Arantes, Rafael; UFSC. |
| A simulation was conducted to determinate the impact caused by the combination of Litopenaeus vannamei respiratory rate (mg O2 shrimp-1 h-1), the behavior of SOTR (kg O2 h-1) of mechanical aerators as a function of salinity, as well as the oxygen consumption rate of the pond water and soil (mg O2 L-1 h-1) on the aeration of shrimp ponds (1, 10, 50 and 100 ha) stocked with different densities (10, 40 and 120 shrimp m-2), salinities (1, 13, 25 and 37 ppt), temperatures (20, 25 and 30°C), and shrimp wet weight (5, 10, 15 and 20 g). Results showed that under lower salinity, with larger shrimp, and higher stocking density, higher will be the quantity of required 2-HP aerators to keep dissolved oxygen over 50% saturation. In addition, under low salinity, with 5... |
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Palavras-chave: Aeration; Shrimp farming; Respiration; Oxygen consumption; Density Aeration; Shrimp farming; Respiration; Oxygen consumption; Density. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7018 |
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| Velho, Luiz Felipe Machado; Brão, Arianne Francielle Silva; Lansac-Tôha, Fernando Miranda; Buosi, Paulo Roberto Bressan; Meira, Bianca Ramos de; Cabral, Adalgisa Fernanda; Lansac-Tôha, Fábio Amodêo. |
| This study examined temporal and spatial (vertical) variations of composition, richness and abundance of the planktonic ciliates community in an urban and eutrophic lake, as well as identified the limnological factors involved in determining the patterns observed. To this end, samples of ciliates and measures of limnological variables were taken at different depths and hydrological periods. 35 ciliate species were identified, among which 14 species occurred in all periods and strata, being Prostomatida the most specious, followed by Gymnostomatida, Oligotrichida, Peritrichida, and Scuticociliatida. The patterns found for composition, abundance and species richness evidenced a vertical and temporal variation of these attributes. However, in general the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecologia - Limnologia / Ecologia de comunidades Protist; Density; Species compositio; Richness; Plankton Ecologia de Protoplâncton. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18579 |
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| Shukla, Prabhakar; Sudhakar, Anjali; Sharma, Anjali. |
| Legumes are prime source of plant proteins, calories and other nutrients. Extrusion cooking of legumes increases the digestibility of legume protein. Extrusion technology has been applied to generate analogues of foods made from animal products, as well as snacks using blends of various plant raw materials e.g. oil seeds [soybeans, peanut with a cereal flour]. Present work was under taken for producing extruded product from pigeon pea. The legumes viz. pigeon pea and Bengal gram were cleaned and ground to required particle size by multipurpose grinder mill to pass through sieve ASTM No. 20. The moisture content of sample was adjusted to 14% moisture level (w.b.). Before extrusion, the feed was allowed to come to ambient temperature and then remixed, after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extrusion; Protein; Moisture content; Density; Dimension. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6861 |
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| Asoiro, Felix Uzochukwu; Simeon, Meshack Imologie; Azuka, Chinenye Eberechukwu. |
| The effects of floral location on the physicochemical and thermal parameters of honey samples from Enugu North senatorial zone were evaluated. Floral location had significant effects (P 0.05) on viscosity, electrical conductivity, sugar content, free acidity, ach content, moisture content, density, pH, colour, thermal heat conductivity and thermal heat diffusivity except, F/G ratio and specific heat capacity. Honeys from Igbo-Eze South were more viscose than the rest of the honey samples from other floral locations, with a mean viscosity value at 25 oC (15.58cSt) higher than that at 60 oC (12.63cSt). The electrical conductivity, ash content, moisture content and density ranged between 226.5 - 211.45 µS cm-1, 0.06 - 0.57%, 16.59 – 22.55% and 0.82 – 1.25 g... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Moisture content; Fructose; Free acidity; Density; Thermal heat diffusivity; Viscosity; Electrical conductivity. |
| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7343 |
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| Isa, John. |
| African star apple (Chrysophyllum albidum) is a popular tree in tropical region with all the parts used for food and medicinal purposes. This study focused on the determination of some physical properties, mechanical properties, proximate composition, and phytochemical properties of the fruit. The experiment was conducted using standard procedures. Results for the physical properties of the fruits have values as follows: length per fruit 3.41 – 5.53 cm, width per fruit 3.31 – 5.08 cm, and thickness per fruit 2.93 – 4.73 cm, respectively. The density was found to be 1.073 gcm-3. The volume, angle of repose, geometric mean diameter, arithmetic mean diameter, sphericity was 47.55 cm3, 4.74 cm3, 4.13 cm3, 4.85 cm3 and 0.88 cm3 respectively. The seed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Density; Volume; Angle of repose; Geometric mean diameter; Arithmetic mean diameter; Sphericity. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5797 |
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| MOHITE, ASHISH M; Sharma, Neha. |
| In this present research communication, selected engineering properties of lima beans and drying behaviour of beans using different dryers were studied. The results for geometric mean diameter and sphericity were found as 8.82 and 0.66. Bulk, tap and true densities were found as 568.1 kg/m3,625.8 kg/m3 and 769 kg/m 3 respectively. Arithmetic mean diameter, equivalent mean diameter and square mean diameter values were found to be 4.84 mm, 24.89 mm and 8.08 mm. Values for static coefficient of friction was highest on plywood surface followed by mild sheet and stainless steel. Ash content, crude fat and fiber content was found as 3.85%, 20.11% and 4.23 for lima beans. The drying behaviour of beans at three temperatures 40 oC,60 oC and 80oC at constant air... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seeds; Drying rate; Density. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4838 |
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| Khodadoost, Farshid; Pasari, Babak; Abdulahi, Abdolvahab; Rokhzadi, Asad; Mohammadi, Khosro. |
| This experiment was conducted to evaluate of two promising rainfed wheat cultivars as affected by different seeding rate in conventional and conservation tillage systems in the research field of the Dryland Agriculture Research Institute (DARI), Sararood branch, Kermanshah, Iran. The experiment layout designed as strip-split plot in a randomized complete block design with 3 replications during two consecutive growing seasons 2017-18 and 2018-19. The tillage systems were placed next to each other as a separate site at two levels: conventional tillage and conservation tillage (no tillage). Wheat cultivars were performed horizontally at two levels (Baran and Rijaw) and the seeding rate was carried out vertically with eight levels (75, 100, 125, 150, 175, 200,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cultivar; Density; Protein; Soil organic carbon; Tillage.. |
| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7383 |
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| Altuntaş, Ebubekír. |
| The effect of ripening periods on physical, chemical and mechanical properties of service tree fruits (Sorbus domestica L.) were determined. The geometric mean diameter, fruit mass, volume, surface area and fruit density of service tree fruits decreased with increase ripening periods, while, bulk density increased with ripening periods. L*, a*, b*, Chroma decreased with increase ripening periods, while hue angle increased with ripening periods respectively. The friction coefficients of service tree fruits with increase ripening periods were lower for laminate than the other surfaces. The total soluble solid content and total acidity of service tree fruits decreased at ripening period. Titratable acidity was higher in physiological maturity as compared to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ripening; Density; Color; Friction; Acidity. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3276 |
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| Fallah,S.; Tadayyon,A.. |
| Efficient nitrogen (N) fertilizer management is critical for the economic production of maize (Zea mays L.) and the long-term protection of environmental quality. To study the effects of N doses and plant density on the N uptake and efficiency on forage maize cv. SC 704, an experiment was conducted in the Shahrekord region (32° 21' N, 50° 49' E; altitude 2050 m), Iran, at the Agricultural Research Station of Shahrekord University, during the 2007 growing season. The experiment was arranged with four plant densities (92 600, 104 200, 119 000 and 138 900 plants ha-1) and four nitrogen doses (200, 240, 280 and 320 kg ha-1) in a randomized complete block design with four replications. Increases of the plant density led to a significant N uptake in stalk, grain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Density; Efficiency; Fertilization; Uptake. |
| Ano: 2010 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000500005 |
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| Rocha,Carlos F.D.; Vrcibradic,Davor; Kiefer,Mara C.; Siqueira,Carla C.; Almeida-Gomes,Mauricio; Borges Júnior,Vitor N.T.; Hatano,Fábio H.; Fontes,Angélica F.; Pontes,Jorge A.L.; Klaion,Thais; Gil,Lívia O.; Sluys,Monique Van. |
| We studied the leaf-litter frog community of Estação Ecológica Estadual Paraíso, in Guapimirim, Rio de Janeiro State, southeastern Brazil. Herein we combined three sampling methods (large plots, visual encounter surveys and pit-fall traps) to present data on species composition, richness, relative abundance and densities. The local assemblage of frogs associated to the leaf-litter was composed by 14 species, belonging to nine families. Haddadus binotatus, a direct-developing frog, was the most abundant species in the community. The estimated density of the local leaf-litter frog assemblage based on plot sampling was 4.3 frogs/100 m². Haddadus binotatus had the highest density (1.1 ind/100 m²). Frogs were predominantly found at night. Thoropa miliaris had... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibia; Atlantic Forest; Brazil; Community parameters; Density; Leaf-litter. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400013 |
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| Almeida-Gomes,Mauricio; Vrcibradic,Davor; Siqueira,Carla C.; Kiefer,Mara C.; Klaion,Thaís; Almeida-Santos,Patrícia; Nascimento,Denise; Ariani,Cristina V.; Borges-Junior,Vitor N.T.; Freitas-Filho,Ricardo F.; van Sluys,Monique; Rocha,Carlos F.D.. |
| We studied the herpetofaunal community from the Atlantic forest of Morro São João, in Rio de Janeiro State, Brazil, and present data on species composition, richness, relative abundance and densities. We combined three sampling methods: plot sampling, visual encounter surveys and pit-fall traps. We recorded sixteen species of amphibians and nine of reptiles. The estimated densities (based on results of plot sampling) were 4.5 ind/100 m2 for amphibians and 0.8 ind/100 m² for lizards, and the overall density (amphibians and lizards) was 5.3 ind/100 m². For amphibians, Eleutherodactylus and Scinax were the most speciose genera with three species each, and Eleutherodactylus binotatus was the most abundant species (mean density of 3.0 frogs/100 m²). The reptile... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herpetofauna; Atlantic rainforest; Brazil; Richness; Density. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200007 |
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| SAMPAIO,HEBERT A.; MARTINELLI-LEMOS,JUSSARA M.. |
| The present work investigated the occupation and the correlation of the shrimp abundance in relation to environmental variables in different habitats (mangroves, salt marshes and rocky outcrops) in an Amazon estuary. The collections were made in August and November 2009, at low syzygy tide on Areuá Beach, situated in the Extractive Reserve of Mãe Grande de Curuçá, Pará, Brazil totaling 20 pools. In each environment, we recorded the physical-chemical factors (pH, salinity, and temperature) and measured the area (m2) and volume (m3) of every pool through bathymetry. The average pH, salinity, temperature, area and volume of tide pools were 8.75 (± 0.8 standard deviation), 35.45 (± 3), 29.49 °C (± 2.32), 27.41 m2 (± 41.18), and 5.19 m3(± 8.01), respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Habitat; Density; Biomass; Decapoda. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100333 |
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| Penido,Gabriel; Astete,Samuel; Furtado,Mariana Malzoni; Jácomo,Anah Tereza de Almeida; Sollmann,Rahel; Torres,Natalia; Silveira,Leandro; Marinho Filho,Jader. |
| Abstract Ocelots play a key role in ecological communities as mesopredators affecting the lower trophic level and other mesopredators. They show great variability in ecological traits across their distribution, but knowledge of this species is missing in several regions where it occurs. Here, we present the first study of ocelot in the Brazilian semiarid of Caatinga. Arid habitats might keep carnivore population density low and therefore vulnerable to environmental shocks and to human-induced changes, at risk of local extinction. To assess their population status, we used camera traps between September 2009 and January 2010. We estimated the density of ocelots using a spatially explicit capture-recapture method (SECR) to be 3.16 ± 0.46 individuals per 100... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Arid environments; Brazil; Density; Ocelot; SECR. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000400503 |
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| Braga,Cesar França; Beasley,Colin Robert; Isaac,Victoria Judith. |
| Data on macrofauna density and diversity, and the height and density of Spartina brasiliensis, were obtained from salt marsh beds of a tropical estuary in northern Brazil. Sampling was carried out at four distinct times of the year, during the wet and dry seasons and in the transition periods between these. Sampling was also carried out in salt marshes of three size classes, small, medium and large. Variables were analyzed in relation to time of year and salt marsh size class. Overall, 46 taxa were found, with polychaetes, isopods and the gastropod Neritina virginea dominating the fauna. Macrofauna density and diversity were positively correlated with culm density, indicating a possible role in protection from predation. All the three variables were higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macrofauna; Spartina; Density; Diversity; Seasonality; Tropical estuary. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600013 |
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| Registros recuperados: 145 | |
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