Recurrent selection for high iron and zinc concentrations in black bean grain

The iron concentration (FeC) and zinc (ZnC) in common bean grain are quantitative traits, appropriate breeding techniques required to achieve genetic gain. aim of this study was obtain a recurrent selection population black increase the FeC ZnC select superior progenies for formation next cycle lines. base formed by crosses among ten parents. A total 351 were obtained, and, after two generations selection, 27 best evaluated field trials FeC, ZnC, 100 seed weight yield. Analyses variance carried out parameters estimated. heritability estimates ranged from 59 94% four traits. expected gain direct each trait (3 21%) simultaneous (1 4%) indicate success selection. eight progenies, selected based on have mean values, including those ‘BRS Supremo’ (10% 8% 5% 3.8% yield), Brazilian cultivar with highest ZnC. shows high variability potential obtaining lines cultivars currently market, allying agronomic performance grain. Furthermore, generating new cycle, recombination progenies.