Repeatability of adaptability and stability parameters of common bean in unpredictable environments

Pesquisa Agropecuária Brasileira

Lidiane Kely De Lima²  Magno Antonio Patto Ramalho²  Ricardo Augusto Diniz Cabral Ferreira²  Ângela De Fátima Barbosa Abreu¹ 

[1] ,Universidade Federal de Lavras Departamento de Biologia Lavras MG ,Brazil

关键词: Phaseolus vulgaris;    biometry;    genotype by environment interaction;    plant breeding;    quantitative genetic;    Phaseolus vulgaris;    biometria;    interação genótipo por ambiente;    melhoramento de plantas;    genética quantitativa;   

DOI  :  10.1590/S0100-204X2013000900009

来源: SciELO

【 摘 要 】

The objective of this work was to estimate the repeatability of adaptability and stability parameters of common bean between years, within each biennium from 2003 to 2012, in Minas Gerais state, Brazil. Grain yield data from trials of value for cultivation and use common bean were analyzed. Grain yield, ecovalence, regression coefficient, and coefficient of determination were estimated considering location and sowing season per year, within each biennium. Subsequently, a analysis of variance these estimates was carried out, and repeatability was estimated in the biennia. Repeatability estimate for grain yield in most of the biennia was relatively high, but for ecovalence and regression coefficient it was null or of small magnitude, which indicates that confidence on identification of common bean lines for recommendation is greater when using means of yield, instead of stability parameters.

【 授权许可】

CC BY   
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