Emprego da análise AMMI na avaliação da estabilidade produtiva em soja
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Data
2003-03
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Resumo
The objective of this work was to evaluate the influence of the genotype environment (GE)
interaction on the grain yield of a soybean (Glycine max L.) lines group. Yield data from 11 trials
(environments) conducted in the State of Goiás, Brazil were used. In each trial 18 genotypes were
tested, from which four were commercial cultivars as checks. The statistical method was the AMMI
analysis (additive main effect and multiplicative interaction analysis). A significant GE interaction
pattern was captured only for the first principal AMMI axis, which explained 36% of the original
square sum of the GE interaction, suggesting contamination of the classic GE interaction matrix by
noise arising from unpredictable factors, assuring that AMMI analysis provides a better prediction of
phenotypic responses than traditional methodologies. About yield stability, most experimental lines
outstands (with low GE interaction) over checks. However, the checks, mainly the cultivar Conquista,
showed higher yield averages. Among the experimental lines, the genotypes L-16, L-13 and L-14
appeared to be the most promising for cultivars recommendation.
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Glycine max, Biplot, Progênie, Interação genótipo-ambiente, Adaptação, Glycine max, Progeny, Adaptation, Biplot, Genotype environment interaction
Citação
OLIVEIRA, Adriano Borges de; DUARTE, João Batista; PINHEIRO, José Baldin. Emprego da análise AMMI na avaliação da estabilidade produtiva em soja. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 3, p. 357-364, mar. 2003.