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Ciência Rural

On-line version ISSN 1678-4596


BERTOLDO, Juliano Garcia et al. Grain yield in black beans: environment is the component that more interferes in the phenotypic value. Cienc. Rural [online]. 2009, vol.39, n.7, pp.1974-1982.  Epub Aug 21, 2009. ISSN 1678-4596.

This study aimed to evaluate the phenotypic variance components for grain yield characters on the sense to be useful for breeding programs, and verify the genetic sensibilility among genotypes of black beans group. The grain yield character was evaluated in twelve black beans genotypes in ten environments of the Santa Catarina Estate through the REML / BLUP method. With the phenotypic variance components decomposition it was possible to provide additional information than traidicionally utilized in line evaluations for grain yield character. The highest grain yield average and the highest predicted value was obtain at genotype BRS Campeiro, which may be suitable for all evaluated environments. In the environments 1 (2004/Canoinhas), 2 (2005/Canoinhas), 9 (2004/Ponte Serrada) e 10 (2005/Ponte Serrada) higher grain yield has been obtained above general mean in all evaluated genotypes. The genotypes CHP 9858, CHP 9859, CHP 9954 and CHP 9965 presented specific adaptability to environment 6 (2005/Ituporanga).

Keywords : Phaseolus vulgaris L.; phenotypic variance; interaction GxE; REML / BLUP.

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