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Amino acid composition of soybean seeds as affected by climatic variables

Carrera, Constanza Soledad et al · Empresa Brasileira de Pesquisa Agropecuária · 2011

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The objective of this work was to perform a quantitative analysis of the amino acid composition of soybean seeds as affected by climatic variables during seed filling. Amino acids were determined from seed samples taken at harvest in 31 multi-environment field trials carried out in Argentina. Total amino acids ranged from 31.69 to 49.14%, and total essential and nonessential amino acids varied from 12.83 to 19.02% and from 18.86 to 31.15%, respectively. Variance components expressed as the percentage of total variation showed that the environment was the most important source of variation for all traits, followed by the genotype x environment interaction. Significant explanatory linear regressions were detected for amino acid content regarding: average daily mean air temperature and cumulative solar radiation, during seed filling; precipitation minus potential evapotranspiration, during the whole reproductive period; and the combinations of these climatic variables. Each amino acid behaves differently according to environmental conditions, indicating compensatory effects among them. O objetivo deste trabalho foi realizar uma análise quantitativa da composição de aminoácidos de sementes de soja em função de variáveis climáticas, durante o período de formação do grão. Foram analisados os aminoácidos de amostras de sementes colhidas no momento da colheita a partir de 31 ensaios multiambientais realizados a campo na Argentina. Os aminoácidos totais variaram de 31,69 a 49,14%, e o total de aminoácidos essenciais e não essenciais variou de 12,83 a 19,02% e de 18,86 a 31,15%, respectivamente. Os componentes de variância expressos como percentagem da variação total mostraram que o ambiente foi a fonte de variação mais importante, seguido da interação genótipo x ambiente. Regressões lineares significativas foram detectadas para o conteúdo de aminoácidos em relação a: temperatura média diária do ar e radiação solar acumulada, durante a formação dos grãos; precipitação menos evapotranspiração potencial, durante todo o período reprodutivo; e combinações dessas variáveis climáticas. Cada aminoácido comporta-se de forma diferente de acordo com as variações nas condições ambientais, o que indica efeitos compensatórios entre eles. Fil: Carrera, Constanza Soledad. Instituto Nacional de Tecnología Agropecuaria, Manfredi; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Unidad de Estudios Agropecuarios - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Estudios Agropecuarios; Argentina

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APA 7

Carrera, C. S. E. A. (2011). Amino acid composition of soybean seeds as affected by climatic variables. http://hdl.handle.net/11336/196299

MLA

Carrera, Constanza Soledad et al. "Amino acid composition of soybean seeds as affected by climatic variables." 2011. http://hdl.handle.net/11336/196299.

Chicago

Carrera, Constanza Soledad et al. 2011. "Amino acid composition of soybean seeds as affected by climatic variables.". http://hdl.handle.net/11336/196299.

Harvard

Carrera, C. S. E. A. 2011, Amino acid composition of soybean seeds as affected by climatic variables, Empresa Brasileira de Pesquisa Agropecuária, available at: http://hdl.handle.net/11336/196299 [Accessed 8 Aug. 2026].

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Title
Amino acid composition of soybean seeds as affected by climatic variables
Author / contributors
Carrera, Constanza Soledad et al
Publisher
Empresa Brasileira de Pesquisa Agropecuária
Publication year
2011
ISSN
1579-1587
ISSN
1579-1587
Language
English

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