Grain yield in black beans: environment is the component that more interferes in the phenotypic value/Rendimento de graos em feijao preto: o componente que mais interfere no valor fenotipico e o ambiente

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 enviro...

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Bibliographic Details
Published in:Ciência rural 2009-10, Vol.39 (7), p.1974
Main Authors: Bertoldo, Juliano Garcia, Coimbra, Jefferson Luis Meirelles, Guidolin, Altamir Frederico, Nodari, Rubens Onofre, Elias, Haroldo Tavares, Barili, Leire Daiane, do Vale, Naine Ma, Rozzetto, Diane Simon
Format: Article
Language:Spanish
Subjects:
Beans
Cogeneration power plants
Crop yields
Genetic aspects
Legumes
Mimosaceae
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Summary: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). Key words: Phaseolus vulgaris L., phenotypic variance, interaction GxE, REML / BLUP. O objetivo deste trabalho foi avaliar os componentes da variancia fenotipica para o carater rendimento de graos a fim de gerar informacoes que auxiliem o melhoramento de plantas e verificar a sensibilidade genotipica entre genotipos de feijao do grupo preto. Para tanto, foi avaliado o carater rendimento de graos de 12 genotipos de feijao em 10 ambientes do Estado de Santa Catarina, por meio do metodo REML/BLUP. A decomposicao dos componentes da variancia fenotipica permitiu ampliar as inferencias sobre os resultados obtidos para o carater rendimento de graos alem daquelas tradicionalmente utilizadas na avaliacao de linhagens. O genotipo BRS Campeiro foi o que apresentou maior media de rendimento de graos e ainda o que obteve o maior valor predito, podendo ser indicado para todos ambientes avaliados. Nos ambientes 1 (2004/ Canoinhas), 2 (2005/Canoinhas), 9 (2004/Ponte Serrada) e 10 (2005/Ponte Serrada), o valor de rendimento de graos, em todos os genotipos avaliados, foi acima da media geral. Os genotipos CHP 9858, CHP 9859, CHP 9954 e CHP 9965 revelaram uma adaptabilidade especifica ao ambiente 6 (2005/Ituporanga). Palavras-chave: Phaseolus vulgaris L., variancia fenotipica, interacao GxE, REML/BLUP.
ISSN:0103-8478