GENETIC DIVERGENCE AND SELECTION OF COMMON BEAN CULTIVARS BASED ON PLANT ARCHITECTURE AND GRAIN YIELD

ABSTRACT The characterization of genetic divergence in common bean cultivars for various traits related to plant architecture and grain yield is unprecedented. This study proposes determine whether different types differ 12 yield; examine the correlations between these traits; analyze cultivars; select superior traits. A total 22 with grains most produced Brazil were evaluated two growing seasons. Plant was analyzed based on traits, determined at maturity. Significant genotype × environment interaction effects obtained, indicating existence variability all Several correlated, but none highly correlated yield. Firstand second-internode lengths are more important differentiating cultivars. Principal component Tocher’s analyses resulted formation four seven groups cultivars, respectively. Both methods efficient analyzing divergence; however, Tocher's method informative. Cultivars BRS Campeiro, SCS 205 - Riqueza, Esteio, IAC Imperador Guapo Brilhante have a high potential, only Esteio upright architecture.