CONTRIBUITION OF ENVIRONMENTAL VARIABLES TO GENOTYPE X ENVIRONMENT INTERACTION IN BEAN
Abstract
An analysis of genotype x environment interaction was perfomed on grain yields of twenty-fourgenotypes of bean (Phaseolus vulgaris L.) grown at five different locations in Rio Grande do Sul. The stabilityparameters were estimated by the linear regression model of EBERHART & RUSSEL (1966). In addition, theenvironmental index of the model was obtained through wheather variables and disease index. The best estimatorof the environment was the usual environmental index, whereas the weather variables and disease index failled toprovide a good estimation.
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