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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
29/10/2004 |
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Data da última atualização: |
05/11/2004 |
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Autoria: |
OLIVEIRA, J. P. de; MOREIRA JUNIOR, W. N.; DUARTE, J. B.; CHAVES, L. J.; PINHEIRO, J. B. |
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Título: |
Genotype-environment interaction in maize hybrids: an application of the AMMI model. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 3, n. 2, p. 185-192, Sept. 2003. |
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Idioma: |
Inglês |
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Conteúdo: |
The genotype-environment interaction is generally recognized when the same genotype is assessed in different environments, having a decisive influence in cultivar recommendation. Maize hybrids that are only adapted to particular environments can become a limiting factor to seed production in large scale. One of the main objectives of breeders is the obtainment of a hybrid with high mean yield and good adaptation to different enviroments. The present study assessed the grain yield stability in thirty-six maize genotypes in ten environments located in Central Brazil in the 1999/2000 growing season. The analysis of variance (ANOVA) detected significance (P<0.01) for the genotype-environment interaction (GE). The AMMI model (additive main effects and multiplicative interaction) was used to assess the additive and multiplicative effects of the interaction. The results indicated homogeneity of environments assessed and high correlation of the hybrid genetic constitution with the yield stability of the three types studied -single, triple and double crosses maize hybrids. The first multiplicative component of the interaction explained more than half (50.6%) of the original sum of squares (SS GE). Most of the environments were neutral in their contribution to the interaction. The Uberlândia environment contributed positively, while the environment in Patos de Minas contributed negatively to the GE interaction. Most of the genotypes also presented a low contribution to interaction. Some single crosses hybrids presented greater mean yield (10182.0 kg/ha -1) while the double crosses hybrids presented greater stability to the environments studied. MenosThe genotype-environment interaction is generally recognized when the same genotype is assessed in different environments, having a decisive influence in cultivar recommendation. Maize hybrids that are only adapted to particular environments can become a limiting factor to seed production in large scale. One of the main objectives of breeders is the obtainment of a hybrid with high mean yield and good adaptation to different enviroments. The present study assessed the grain yield stability in thirty-six maize genotypes in ten environments located in Central Brazil in the 1999/2000 growing season. The analysis of variance (ANOVA) detected significance (P<0.01) for the genotype-environment interaction (GE). The AMMI model (additive main effects and multiplicative interaction) was used to assess the additive and multiplicative effects of the interaction. The results indicated homogeneity of environments assessed and high correlation of the hybrid genetic constitution with the yield stability of the three types studied -single, triple and double crosses maize hybrids. The first multiplicative component of the interaction explained more than half (50.6%) of the original sum of squares (SS GE). Most of the environments were neutral in their contribution to the interaction. The Uberlândia environment contributed positively, while the environment in Patos de Minas contributed negatively to the GE interaction. Most of the genotypes also presented a low contribution to interaction. So... Mostrar Tudo |
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Palavras-Chave: |
Ambiente; Ammi model; Interação; Interaction; Maize. |
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Thesagro: |
Genótipo; Hibrido; Milho; Zea Mays. |
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Thesaurus Nal: |
environment; genotype. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02474naa a2200301 a 4500
001 1212657
005 2004-11-05
008 2003 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, J. P. de
245 $aGenotype-environment interaction in maize hybrids$ban application of the AMMI model.
260 $c2003
520 $aThe genotype-environment interaction is generally recognized when the same genotype is assessed in different environments, having a decisive influence in cultivar recommendation. Maize hybrids that are only adapted to particular environments can become a limiting factor to seed production in large scale. One of the main objectives of breeders is the obtainment of a hybrid with high mean yield and good adaptation to different enviroments. The present study assessed the grain yield stability in thirty-six maize genotypes in ten environments located in Central Brazil in the 1999/2000 growing season. The analysis of variance (ANOVA) detected significance (P<0.01) for the genotype-environment interaction (GE). The AMMI model (additive main effects and multiplicative interaction) was used to assess the additive and multiplicative effects of the interaction. The results indicated homogeneity of environments assessed and high correlation of the hybrid genetic constitution with the yield stability of the three types studied -single, triple and double crosses maize hybrids. The first multiplicative component of the interaction explained more than half (50.6%) of the original sum of squares (SS GE). Most of the environments were neutral in their contribution to the interaction. The Uberlândia environment contributed positively, while the environment in Patos de Minas contributed negatively to the GE interaction. Most of the genotypes also presented a low contribution to interaction. Some single crosses hybrids presented greater mean yield (10182.0 kg/ha -1) while the double crosses hybrids presented greater stability to the environments studied.
650 $aenvironment
650 $agenotype
650 $aGenótipo
650 $aHibrido
650 $aMilho
650 $aZea Mays
653 $aAmbiente
653 $aAmmi model
653 $aInteração
653 $aInteraction
653 $aMaize
700 1 $aMOREIRA JUNIOR, W. N.
700 1 $aDUARTE, J. B.
700 1 $aCHAVES, L. J.
700 1 $aPINHEIRO, J. B.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 3, n. 2, p. 185-192, Sept. 2003.
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Embrapa Arroz e Feijão (CNPAF) |
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| 6. |  | MESQUITA, A. L. M.; BRAGA SOBRINHO, R.; MOTA, M. do S. C. de S.; SILVA, M. N. C. Bioecologia, monitoramento, níveis de infestação e de controle da broca-do-fruto da gravioleira. In: SEABRA, G. (Org.). Terra: paisagens, solos, biodiversidade e os desafios para um bom viver. Ituiutaba: Barlavento, 2016. p. 922-930.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| Registros recuperados : 11 | |
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