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Selection of cowpea genotypes for Mato Grosso do Sul viaGGE Biplot and linear regression

2017; UNIVERSIDADE FEDERAL DE UBERLÂNDIA; Linguagem: Inglês

10.14393/bj-v33n3-33785

1981-3163

Adriano dos Santos, G. Ceccon, Erina Vitório Rodrigues, Paulo Eduardo Teodoro, Agenor Martinho Corrêa, Francisco Eduardo Torres, Rita de Cássia Félix Alvarez,

Statistical Methods and Applications

The aim of this study was to investigate the association between GGE Biplot and Eberhart and Russell methodologies and to select cowpea genotypes that meet both high grain yield, adaptability and stability for Mato Grosso do Sul environments.The trials were carried out from February to July of 2010, 2011 and 2012 in the municipalities of Dourados, Aquidauana and Chapadão do Sul.The trials in Chapadão do Sul were conducted only in the years 2010 and 2011, totaling eight environments.After detecting significant GE interaction, adaptability and phenotypic stability of cowpea genotypes were analyzed by GGE Biplot and linear regression methods.Eberhart and Russell and GGE biplot methodologies discriminate differently the best cowpea genotypes and it can be used in a complementary way.MNCO1-649F-2-11 and MNCO2-675-4-9 genotypes are the closest to the ideal in terms of high grain yield and phenotypic stability, being so suitable for cultivation in the state of Mato Grosso do Sul.