adaptabilidade e estabilidade de genótipos de girassol no brasil central adaptability and stability of sunflower genotypes in central brazil
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2008
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Abstract
O objetivo deste trabalho foi avaliar a adaptabilidade e estabilidade de genótipos de girassol, no Brasil Central, quanto ao rendimento de grãos e de óleo. Os dados foram obtidos de ensaios de genótipos de girassol coordenados pela Embrapa Soja, de 2004 a 2007. Foram usados os métodos de Eberhart & Russell, Porto et al., Rocha et al. e Annicchiarico. Foi realizada a decomposição do índice de recomendação de Annicchiarico nos ambientes favoráveis e desfavoráveis. Este método e o de Porto et al. foram similares e mais adequados para avaliar a adaptabilidade dos genótipos. Em relação ao rendimento de grãos, as variedades BRSGira 02 e Nutrissol apresentaram adaptação ampla. Os híbridos Agrobel 959, MG50 e V03005 e as variedades Catissol e Multissol apresentaram adaptação aos ambientes favoráveis, e os híbridos BRHS 02 e BRHS 04 apresentaram adaptação aos ambientes desfavoráveis. Quanto ao rendimento de óleo, os híbridos Agrobel 959, V03005, MG50, VDH 487, EXP 1441, EXP 1447 e EXP 1446 e as variedades BRSGira 01, BRSGira 02 e Nutrissol apresentaram adaptação ampla. O híbrido MG52 e as variedades Catissol e Multissol mostraram adaptação aos ambientes favoráveis, e BRHS 04 e BRHS 02 mostraram adaptação aos ambientes desfavoráveis. Os genótipos selecionados mostraram-se estáveis, mas em níveis diferenciados.
The objective of this study was to evaluate the adaptability and stability of sunflower genotype grain and oil yield, in Central Brazil. The analyzed data were obtained from sunflower genotype trials coordinated by Embrapa Soja, from 2004 to 2007. Genotype adaptability and stability were evaluated using the methods of Eberhart & Russell, Porto et al., Rocha et al., and Annicchiarico. The Annicchiarico method divides sites into favorable and unfavorable environments. This method and the one of Porto et al. were similar and more adequate to evaluate genotypic adaptability. For grain yield, the varieties BRSGira 02 and Nutrissol were widely adapted. The hybrids Agrobel 959, MG50 and V03005 and the varieties Catissol and Multissol were adapted to favorable environments and the hybrids BRHS 02 and BRHS 04 were adapted to unfavorable environments. For oil yield, the hybrids Agrobel 959, V03005, MG50, VDH 487, EXP 1441, EXP 1447, and EXP 1446 and the varieties BRSGira 01, BRSGira 02, and Nutrissol were widely adapted. The hybrid MG52 and the varieties Catissol and Multissol were adapted to favorable environments and BRHS 04 and BRHS 02 were adapted to unfavorable environments. The selected genotypes were shown to be stable, but at different levels.
The objective of this study was to evaluate the adaptability and stability of sunflower genotype grain and oil yield, in Central Brazil. The analyzed data were obtained from sunflower genotype trials coordinated by Embrapa Soja, from 2004 to 2007. Genotype adaptability and stability were evaluated using the methods of Eberhart & Russell, Porto et al., Rocha et al., and Annicchiarico. The Annicchiarico method divides sites into favorable and unfavorable environments. This method and the one of Porto et al. were similar and more adequate to evaluate genotypic adaptability. For grain yield, the varieties BRSGira 02 and Nutrissol were widely adapted. The hybrids Agrobel 959, MG50 and V03005 and the varieties Catissol and Multissol were adapted to favorable environments and the hybrids BRHS 02 and BRHS 04 were adapted to unfavorable environments. For oil yield, the hybrids Agrobel 959, V03005, MG50, VDH 487, EXP 1441, EXP 1447, and EXP 1446 and the varieties BRSGira 01, BRSGira 02, and Nutrissol were widely adapted. The hybrid MG52 and the varieties Catissol and Multissol were adapted to favorable environments and BRHS 04 and BRHS 02 were adapted to unfavorable environments. The selected genotypes were shown to be stable, but at different levels.
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grunvald2008pesquisaadaptabilidade
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| Authors | ;Anna Karolina Grunvald;Claudio Guilherme Portela de Carvalho;Ana Cláudia Barneche de Oliveira;Carlos Alberto de Bastos Andrade |
| Journal | proc - the fourth ieee workshop on software technol for future embedded and ubiquitous syst, seus 2006 andthe second int workshop on collaborative comput, integr, and assur, wccia 2006 |
| Year | 2008 |
| DOI |
10.1590/S0100-204X2008001100006
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