USE OF ENVIRONMENTAL VARIABLES AND DISEASE INDEX FOR GENOTYPE X ENVIRONMENT INTERACTION IN COMMON BEAN
Abstract
Genotype x environment interaction was perfomed on grain yield of twenty-two genotypes of common bean (Phaseolus vulgaris L.) grown at tive different locations in Rio Grande do Sul, during two years. The stability parameters were estimated by linear regression model of EBERHART and RUSSEL (1966). In addition, the environmental index of the model was obtained by weather variables and disease index. The best estimator of the environment was the normal environmental index, whereas the weather variables and disease index failled to provide a good estimation.
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