Análise AMMI da produtividade de grãos em linhagens de soja selecionadas para resistência à ferrugem asiática
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2013-10
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Resumo
The objective of this work was to quantify the effects of genotype x environment (GxE) interaction
on grain yield in soybean progenies pre-selected for resistance to Asian soybean rust (Phakopsora pachyrhizi).
Twelve trials evaluating progenies (lines F6 and F7) were carried out in different environments (combination
of locations, years, and fungicide treatments to control late season diseases, including or not rust). Additive
main effects and multiplicative interaction (AMMI) analysis captured, as GxE interaction pattern, 57% of
the variance associated with the residues of non‑additivity, of which 44% were retained in the first principal
component of interaction, and the remainder in the second. The first component was associated with the
differences between the years of evaluation, which denotes unpredictability. The second component, however,
was associated with different crop managements, related to the control or not of the diseases. Among genotypes
with wide yield adaptability, the USP 02‑16.045 and USP 10‑10 lineages stood out.
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Glycine max, Interação genótipo x ambiente, Phakopsora pachyrhizi, Biplot, Glycine max, Phakopsora pachyrhizi, Biplot, Genotype x environment interaction
Citação
YOKOMIZO, Gilberto Ken-Iti et al. Análise AMMI da produtividade de grãos em linhagens de soja selecionadas para resistência à ferrugem asiática. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 48, n. 10, p. 1376-1384, out. 2013.