Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/12039
Título: Adaptabilidade e estabilidade de híbridos de milho em ensaios avançados
Autores: Nunes, José Airton Rodrigues
Ferreira, Daniel Furtado
Lepre, André Luiz
Bruzi, Adriano Teodoro
Rocha, Maurisrael de Moura
Palavras-chave: Zea mays
Milho híbrido
Interação genótipo x Ambiente
Hybrid corn
Genotype x Environment interaction
Data do documento: 2016
Editor: Universidade Federal de Lavras
Citação: SANTOS, D. C. dos. Adaptabilidade e estabilidade de híbridos de milho em ensaios avançados. 2016. 43 p. Trabalho de Conclusão de Curso (Mestrado Profissional em Genética e Melhoramento de Plantas)-Universidade Federal de Lavras, Lavras, 2016.
Resumo: In corn breeding programs conducted by private companies, it is common to perform the product advanced trials in several cultivation environments in order to better position the new hybrids, as well as to provide opportunities for the producers to evaluate their product. In this work, we aimed at describing the adaptability and stability of corn hybrids using unreplicated product advanced trials (PAT) with AMMI (additive main effects and multiplicative interaction) approach and complementary methods. We considered the grain productivity data of twelve corn hybrids evaluated in a product advanced trial network conducted by the company DuPont Pioneer in 80 cultivation environments in the states of Minas Gerais and Goiás, in interim-harvest of 2014. The AMMI analysis was employed along with the bisegmental lineal regression methods, developed by Lin and Binns and by Annicchiarico. Significant differences, as well as a marked macro-environmental variation, were verified between the tested hybrids. The effect of hybrid interaction by environments was expressive. The application of the AMMI method allowed the study of hybrid interaction by environment based on the corn PAT´s. Hybrids 7 and 8 are recommended for higher quality environments, according to results obtained by Cruz et al. (1989), while hybrids 3, 5 and 12 presented wide adaptability. The methods developed by Lin and Binns and by Annicchiarico show hybrid 8 as the most promising for associating high productivity and lower risk in the tested cultivation environments.
URI: http://repositorio.ufla.br/jspui/handle/1/12039
Aparece nas coleções:Genética e Melhoramento de Plantas - Mestrado Profissional (Dissertações)

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