In the biennium 1996/97, twenty-one genotypes of colored bean were evaluated, in three environments, to identify and estimate adaptability parameters and phenotypic stability for grains yield. The experimental design was randomized blocks with three replications per treatment. The genotypes revealed highly significant differences among them, in all evaluated environments. In the analysis of joint variance, the genotype effects, environment and the interaction genotype x environments were highly significant, showing differences among genotypes x environment, and the existence of a differentiated behavior among genotypes according to enviromental variation. Average grain yields varied from 1321kg.ha-1 to 801kg.ha-1, with on overall average of 1081kg.ha-1. Most of the genotypes evidenced high phenotypic stability, specially LP 93-15, LP 93,2, LP 93-38 and Rudá, which showed superior average yield compared to the overall yield average, general adaptability and predicted behavior in all the studied enviroments. Among the genotypes with grain yield below the overall average AN 9022180, LM 93204319, LR 91155315, PF 9029975, PF 9029984 and TB 94-05 presented general adaptability and high phenotipic stability in the environments evaluated.
Phaseolus vulgaris L; phenotypic stability
