Hybrids from 'Ouro 1919' x 'Ouro Negro 1992', 'Ouro 1919' x Raça D and 'Ouro 1919' x Phaseolus aborigineus 283, beans were obtained to study heritability and genetic correlations between some yield responses, in two crop systems namely monocropping and intercropping with maize during both dry and rainy seasons. All estimates were obtained through field data of F1, F2 and F3 populations as well as those of their original parents. Main populations were defined by the Single Seed Descent (SSD) method. Heritabilities estimated under intercropping conditions were often higher than those under monocropping system. Among all studied responses the highest heritabilities corresponded to the number of legumes per plant. Genetic correlation coefficients within systems suggest that the selection procedure should mainly consider the number of legumes per plant when selecting under monocropping system aiming further intercropping use.
Phaseolus vulgaris L.; Zea mays L.; culture systems; single seed descent; selection
