Genetic variability studies in cluster bean [Cyamopsis tetragonoloba (L.) Taub]

Abstract

An present investigation was carried out at Horticulture Research Farm, Department of Horticulture, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences Allahabad during during Kharif 2016-17. Fifteen genotypes of cluster bean [Cyamopsis tetragonoloba (L.) Taub] were evaluated to estimate variability, broad sense heritability and genetic advance over mean for vegetable pod yield and related attributes. Maximum range of variability was observed for plant height 90 days (cm), number of branches 90 days, fruit clusters per plant, pod/plant, pod yield per plant (g) and pod yield/ha (q). High heritability coupled with high genetic gain in percentage was observed for all studied traits excepted days to 1st flowering, days to 50% flowering, days to 1st pod picking, pod width, pods/cluster. Showed high genotypic coefficient of variation as well as high phenotypic coefficient of variation was recorded for number of branches/plant 45 days while recorded minimum for days to 1st pod picking. The results of present investigation suggested that selection based on plant height 90 days (cm), number of branches 90 days, fruit clusters per plant, pod/plant, pod yield per plant (g) and pod yield/ha (q) might bring simultaneous improvement in vegetable pod yield of cluster bean.