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| Registros recuperados: 1.094 | |
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| Souza,Antonio Jackson Jesus; Guimarães,Rubens José; Dominghetti,Anderson William; Scalco,Myriane Stella; Rezende,Tiago Teruel. |
| ABSTRACT The aim of this work was to evaluate the use of a water-retaining polymer on the initial growth of coffee plants for different levels of irrigation and types of seedling. The experiment was set up in pots with a clayey soil, in a greenhouse of the Sector for Coffee Production of the Federal University of Lavras, Brazil. The experiment was arranged in a randomised block design into sub-lots with three replications, giving a total of 48 experimental units. Four levels of irrigation (25%, 50%, 75% and 100% of the available water) were randomly assigned to the lots; the type of seedling (grown in bags or tubes) were randomly assigned to the sub-lots, and the use or not of the water-retaining polymer randomly assigned to the sub-sub-lots. In the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seedling containers; Implementation; Coffea arabica L.; Hydrogel. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000200334 |
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| Gouveia,Alison Batista Vieira Silva; Souza,Christiane Silva; Santos,Fabiana Ramos dos; Minafra-Rezende,Cíntia Silva; Minafra,Cibele Silva. |
| RESUMO As rações dos animais monogástricos no Brasil constituem-se de milho e farelo de soja. Dentre os entraves do uso de grãos de cereais nas dietas destaca-se a presença de polissacarídeos não amiláceos, constituintes de baixa digestibilidade, não digeridos pelas aves. Desse modo, faz-se importância estudar ingredientes não convencionais e uso de aditivos, tais como as enzimas nas rações. Objetivou-se avaliar a produtividade e o metabolismo de codornas japonesas em postura, alimentadas com rações à base de milho ou sorgo contendo ou não xilanase e β-glucanase. O delineamento experimental foi inteiramente casualizado, em esquema fatorial 2x2, sendo quatro tratamentos, com cinco repetições e sete aves em cada, perfazendo 140 animais. Os tratamentos foram:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coturnix coturnix japonica; Egg quality; Enzymes; Performance; Seedor Index. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000300407 |
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| Rocha,Maurisrael de Moura; Damasceno-Silva,Kaesel Jackson; Menezes-Júnior,José Ângelo Nogueira de; Carvalho,Hélio Wilson Lemos de; Costa,Antônio Félix da; Lima,João Maria Pinheiro de; Santos,João Felinto dos; Bertini,Cândida Hermínia Campos de Magalhães; Passos,Adriana Rodrigues; Morais,Otoniel Magalhães. |
| ABSTRACT Cowpea is grown in the various soil and climatic conditions of the Northeast region of Brazil. Thus, selecting and developing cultivars with high yield, stability, and adaptability for this region is necessary due to the genotype × environment interaction. The objective of this work was to select cowpea lines of semi-erect plant simultaneously for high yield, adaptability, and genotypic stability in the Northeast region of Brazil by the REML/BLUP procedure. Twenty semi-erect genotypes-15 lines and five cultivars-were evaluated in 37 environments of the Northeast region from 2013-2015. The experiments were carried out under rainfed conditions in a randomized complete block design with four replications. The adaptability and genotypic stability were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Grain yield; Genotype × environment interaction; Mixed models. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500862 |
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| Rocha,Maurisrael de Moura; Damasceno-Silva,Kaesel Jackson; Menezes-Júnior,José Ângelo Nogueira de; Carvalho,Hélio Wilson Lemos de; Costa,Antônio Félix da; Lima,João Maria Pinheiro de; Santos,João Felinto dos; Bertini,Cândida Hermínia Campos de Magalhães; Passos,Adriana Rodrigues; Morais,Otoniel Magalhães. |
| ABSTRACT Cowpea is grown in different environmental conditions of the Northeast region of Brazil. Thus, selecting and developing cultivars with high yield, stability, and adaptability for this region is necessary due to the genotype × environment interaction. The objective of this work was to select cowpea lines of semi-prostrate plant simultaneously for high yield, adaptability, and genotypic stability in the Northeast region of Brazil by the REML/BLUP procedure. Twenty semi-prostrate genotypes-16 lines and four cultivars-were evaluated in 36 environments of the Northeast region from 2013-2015. The experiments were carried out under rainfed conditions in a completely randomized block design with four replications. The adaptability and genotypic stability... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Grain yield; Genotype × environment interaction; Mixed models. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500879 |
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| Pimentel,Patrícia Guimarães; Reis,Ronaldo Braga; Neiva,José Neuman Miranda; Coelho,Sandra Gesteira; Pinto,Andréa Pereira. |
| ABSTRACT This work evaluated the production and composition of milk from dairy cows fed increasing levels of cashew nuts in the concentrate portion of the diet. Eight Holstein multiparous cows were used, between the third and fifth lactation, with an average milk yield of 28.0 ? 4.0 kg day-1, arranged in a double 4 x 4 Latin square experimental design. The assessed diets consisted of including different amounts of ground cashew nuts (CN): 0; 80; 160 and 240 g kg-1 of concentrate portion, which resulted in ether extract contents of 31.6; 46.0; 68.9 and 73.1 g kg-1 of dietary dry matter, respectively. Corn silage was used as the only roughage at a proportion of 50% and diets were formulated to be isoprotein. Diet was offered as a complete mixture. Average... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Byproduct; Conjugated linoleic acid; Lipids; Milk fat; Milk protein. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400700 |
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| Silva,Victor Maurício da; Teixeira,Alex Fabian Rabelo; Reis,Edvaldo Fialho dos; Mendonça,Eduardo de Sá. |
| The conilon coffee tree presents high yield potential, the replacement of soil nutrients usually being by the use of mineral fertilizers. To reduce these fertilizers, the use of organic waste may be an alternative. The objective of this study was to evaluate the effect of organic fertilizer systems on the nutritional status and yield of the conilon coffee tree. On a farm, located in the town of Linhares, Espirito Santo, during the agricultural year of 2009/2010, a trial was set up using a completely randomized block design with a factorial distribution of 2 x 2 x 5 and three replications, the factors being: organic compost (compost 1 and compost 2 ); legumes (the presence and absence of jack beans, sown between the rows of coffee trees); and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nutrient uptake; Compost; Legumes; Family farmer. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000400014 |
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| Silva,Paulo Sérgio Lima e; Tomaz,Francisco Linco de Souza; Siqueira,Patrícia Liany de Oliveira Fernandes; Silva,Paulo Igor Barbosa e; Lima,Levi Afonso Cavalcante de. |
| ABSTRACT Bird attacks on the sunflower may hinder its exploitation in the Brazilian semi-arid region. The aim of this study was to evaluate the effects of different levels of protection (0, 33, 66 and 100%) of the capitula of eight sunflower cultivars, evaluated in randomized blocks with sub-divided plots and four replications. The cultivars were allocated in the plots and the levels of protection in the sub-plots, by covering the capitula with caps of non-woven fabric after physiological maturity. The most frequent bird species was the Paroaria dominicana. The Aguará 06 cultivar was the most productive and most tolerant to bird attack, followed by the Helio 250, CF 101 and Charrua cultivars. There was a positive correlation between yield loss (YL) due to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Helianthus annuus; Paroaria dominicana; Protection of capitula; Phenotypic correlation; Genetic improvement. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100114 |
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| Franchini,Julio Cezar; Balbinot Junior,Alvadi Antonio; Sichieri,Fernando Ribeiro; Debiasi,Henrique; Conte,Osmar. |
| The integrated crop- livestock-forest system can enhance the production of soybeans, meat and wood in regions characterized by sandy soils and warm climate. The aim of this study was to evaluate the yield of soybean, Urochloa ruziziensis grass and eucalyptus in an integrated system during the first four years after the establishment of eucalyptus in the northwestern region of Paraná state, Brazil. The experiment was established in October 2009, using soybean (summer) -U. ruziziensis (autumn/winter) succession between single rows of Corymbia maculata (eucalyptus species). The spacing between tree rows and eucalyptus plants in the row were 14 and 4.2 m, respectively. Adjacent plots had the same soybean-U. ruziziensis succession, but without eucalyptus. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eucalyptus; Glycine max L.; Urochloa ruziziensis; Sandy soil; Spatial and temporal variability. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500016 |
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| Lima,Francisco Aldiel; Viana,Thales Vinícius de Araújo; Sousa,Geocleber Gomes de; Correia,Luis Fabrício Martins; Azevedo,Benito Moreira de. |
| ABSTRACT Strawberry is produced and appreciated in different regions of the world, due to its productive and commercial characteristics. Biofertilizer is an organic fertilizer that is easy to prepare and effective to nourish plants. The objective of this work was to assess the effect of different irrigation levels and anaerobically fermented bovine biofertilizer doses, on biomass accumulation and strawberry crop yield. The experiment was carried out in the experimental area of the UFC, in Fortaleza, Ceará, Brazil, from August to December 2012, under a screened environment. The experimental design was randomized blocks designed into subdivided plots, in which irrigation levels were applied via drip irrigation (equivalent to 33.3, 66.6, 100, 133.3 and 166.6%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragaria x ananassa Duch; Organic input; Hydric stress. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300381 |
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| Melo,Francisco de Brito; Cardoso,Milton José; Andrade Júnior,Aderson Soares de; Ribeiro,Valdenir Queiroz. |
| ABSTRACT Zinc (Zn) is an essential micronutrient for plants, due to its role as a functional, structural, or regulatory cofactor in a large number of enzymes. The element is necessary for the synthesis of tryptophan, which is a precursor of indoleacetic acid. The aim of this study was to evaluate the behavior of two cowpea cultivars fertilized with four doses of Zn (0.0, 2.0, 4.0, and 6.0 kg of Zn ha-1) regarding dry grain yield (PGS), in addition to quantifying leaf and grain Zn content and grain crude protein. The experiment was conducted in the town of Brejo, in the state of Maranhão, Brazil. A 4 x 2 factorial scheme was used with four replications. Response functions were adjusted by calculating the Zn doses which provided a maximum technical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mineral nutrition; Vigna unguiculata (L.) Walp; Grain yield. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500739 |
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| Gasparini,Kaio Allan Cruz; Fonseca,Mariana Duarte Silva; Pastro,Milena Scaramussa; Lacerda,Leonardo Cassani; Santos,Alexandre Rosa dos. |
| RESUMOOs produtos do açaí (Euterpe oleracea Mart.) apresentam grande importância econômica e cultural no Brasil com um crescente mercado consumidor. Com intuito de fornecer bases para ampliação desse cultivo em outros estados, buscou-se elaborar o zoneamento agroclimático para essa cultura no estado do Espírito Santo. Para tanto, utilizou-se de dados meteorológicos de 110 estações de órgãos governamentais e da ferramenta geotecnológica ArcGIS 10.1 para espacializar os dados de temperatura, precipitação e déficit hídrico e depois reclassificá-las para a geração do zoneamento. Os resultados demonstraram que 20,74% da área total do Espírito Santo possui zonas aptas a essa cultura, localizadas nas regiões Nordeste, Serrana e Sul, sendo Linhares o município com... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geotecnologias; Déficit hídrico; Temperatura; Classes de aptidão. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000400707 |
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| Pezzopane,José Ricardo Macedo; Castro,Fábio da Silveira; Pezzopane,José Eduardo Macedo; Bonomo,Robson; Saraiva,Giselle Sabadim. |
| O presente trabalho teve por objetivo apresentar um zoneamento de risco climático, baseado no atendimento hídrico para o café Conilon para o estado do Espírito Santo, em função da variação das necessidades de água nas fases fenológicas do florescimento, granação dos frutos e crescimento vegetativo. Foi realizada para cada fase fenológica uma análise frequencial da evapotranspiração relativa, obtida pela relação entre as evapotranspirações real e de referência, provenientes de um modelo de balanço hídrico sequencial. Posteriormente procedeu-se a espacialização de riscos climáticos de atendimento hídrico para o café Conilon considerando simultaneamente as fases fenológicas da floração, granação e crescimento vegetativo. Os resultados indicaram que devido à... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Balanço Hídrico; Granação; Florescimento; Evapotranspiração. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902010000300004 |
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| Registros recuperados: 1.094 | |
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