Comparative Performance Assessment of Determinate and Indeterminate Dolichos Bear (Lablab purpureas L. Sweet) Recombinant Inbred Lines

摘要

The per se performance of two bi-parental crosses-derived determinate and indeterminate recombinant inbred lines (RILs) belonging to early, medium and late maturity groups in dolichos bean were compared for eight quantitative traits. Based on days to50% flowering, the HA 4 x CPI 31113 (HACPI 3)-derived RILs and HA 4 x CPI60125 (HACPI 6)-derived RILs were classified into early, medium and late maturity groups. Early and late maturing HACPI 3-derived and early maturing HACPI 6-derived determinates andindeterminate RILs differed significantly in favour of indeterminate RILs for pods plant1, dry pod yield plant1 and dry seed yield plant1. For rest of the traits, in all the maturity groups, determinate and indeterminate RILs derived from both the crosses were comparable. However, medium maturity group determinates and indeterminate RILs derived from both the crosses were comparable for all the traits. The results suggested that it is desirable to breed determinate dolichos bean varieties of medium maturity group (50-55 days to flowering) to maintain their economic product yield comparable to indeterminate varieties.