Implications of genotype x environment interaction in the indication of common bean cultivars in Santa Catarina, Brazil

Abstract

The objective of the work was to verify the effect of the genotype x environment interaction and its implication in the recommendation of bean genotypes in the first and second crop in Santa Catarina, together with the simultaneous diagnosis of productive and stable genotypes. The data come from the state and southern Brazilian tests of lines and cultivars conducted in the state, totaling twenty-four environments and forty-eight genotypes of beans, which were evaluated in the conditions of first and second crop (12 environments each), in agricultural years 2012/13, 2013/14 and 2014/15. The analyzes were divided into the two cultivation conditions, using the model of main additive effects and multiplicative interaction. The first crop showed a greater effect of the genotype x environment interaction on the total variation, compared to the second. The genotypes showed stability to few environments, with favorable or unfavorable association of grain yield. The stable genotype with the highest production in the first crop condition was 46 and 26 in the second.