Estratificação ambiental para avaliação e recomendação de variedades de milho no estado de Goiás
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Data
2010-07
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Editor
Alexsander Seleguini
Resumo
The objective of this study was to identify environmental
strata for maize varieties recommendation and key locations for
this kind of trial in Goiás State, Brazil. Forty-seven trials from
the maize varieties evaluation program, carried out at Secretaria
da Agricultura, Pecuária e Abastecimento do Estado de Goiás
(Seagro-GO), over four growing seasons (2002/2003, 2003/2004,
2004/2005, and 2005/2006) were evaluated. The environmental
stratification was performed by using the winner genotypes
AMMI approach, which allows, due to the study of genotypes by
environment interactions (GxE), the identification of the genotypes
most adapted to each environment, as well as the constitution of
similar environmental location groups. Two environmental strata
showed stability throughout the evaluated growing seasons, mainly
for the group formed by the locations of Ipameri, Inhumas and
Senador Canêdo, stable along the four years, and the one composed
by Porangatu and Orizona, stable throughout three growing years.
From that, it is possible to reduce at least 16% of the currently
used test locations and/or replace them by other locations, aiming
to increase the efficiency of the varietal evaluation in that region.
The ALBandeirante cultivar showed high yield potential and
adaptability to the maize crop conditions in Goiás.
Descrição
Palavras-chave
Análise AMMI, Genótipos vencedores, Interação GxA, Adaptabilidade, Zoneamento, AMMI analysis, Winner genotypes, GxE interaction, Adaptability, Zoning
Citação
FELIPE, Cristiane Rachel de Paiva; DUARTE, João Batista; CAMARANO, Luciene Fróes. Estratificação ambiental para avaliação e recomendação de variedades de milho no estado de Goiás. Pesquisa Agropecuária Tropical, Goiânia, v. 40, n. 2, p. 186-199, abr./jun. 2010. Disponível em: <https://www.revistas.ufg.br/pat/article/view/6158/6890>.