Heterosis studies in green gram (Vigna radiata (L.) Wilczek) for earliness, grain yield and yield contributing character

Abstract

In the present investigation, a study was consisting of six female parents and three male parents were effected in line × tester (6 x 3) program. The resulting 18 F1s were evaluated along with the nine parents and one check (PKV Green Gold) in Randomized Block Design with three replications during the Kharif-2014. The observations on five randomly selected plants in each replication were recorded for four characters viz; days to 50 percent flowering, days to maturity, grain yield per plant (g), and seeds per pods. A considerable amount of heterosis was observed for all characters. The highest heterotic effect was observed in BM-2002-1 x AKM-0603 (145.93percent) for grain yield per plant. The hybrids showed significant positive heterosis over check PKV green gold for all the characters under study. The cross combination BPMR-145 x AKM-10-07 for earliness and grain yield per plant is recommended for heterosis breeding for earliness and to boost low yield levels of green gram.