Vol. 10, Issue 6 (2021)

Author(s):
A Sheena Sabatina, Lal Ahamed M, JV Ramana and N Harisatyanarayana

Abstract:
The genetic improvement in greengram depends on the nature and amount of variability present in the population. The trait, yield, is highly influenced by environmental factors indicating the need to have clear understanding on existed amount of variability in the breeding material for the yield contributing traits including yield. In the present study, thirty genotypes of advanced breeding lines of greengram were evaluated to know the variability parameters for yield and yield contributing traits for their exploitation in the breeding programmes. The analysis of variance was significant for yield and yield traits indicating the existence of sufficient variability for their exploitation. The mean range of the traits was huge for most of the traits indicating use of simple selection while exploiting genetic variability of the material. The phenotypic coefficient of variation was higher than the genotypic coefficient variation indicating the influence of environment on the expression of the traits. Among the traits, no. of branches/plant, no. of clusters/plant, no. of pods/plant, test weight (gm) and seed yield/ha showed more heritability and genetic advance indicating the importance of simple selection procedures for their exploitation in the breeding programmes.