GENETIC DIVERGENCE IN COMMON BEAN GENOTYPES CULTIVATED INNORTH OF MINAS GERAIS, BRAZIL

摘要

Common bean (Phaseolus vulgaris L.) presents a very great diversity of grains forms and color. It is a culture of great relevance for the Brazilian economic scenario, since its great importance and preference in the Brazilians food. The advance of genetic breeding has increased the number of cultivars with ideal characteristics of crop. However, the extensive use of one or more genetically similar cultivars provides narrowing of the genetic basis. Genetic diversity provides strategies that avoid theuse of genetically similar cultivars and thereby avoid problems of origin mainly of biotic character. Thus, it is required that cultivars are not only adapted and productive, but also genetically divergent. Therefore, the objective of this work was to evaluate the genetic diversity of 25 common bean genotypes evaluated in the VCU tests in the north of Minas Gerais.