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| Registros recuperados: 5.225 | |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 5.225 | |
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