Estimation of Heritable Determinants and field Evaluation of Mungbean Germplasm

Abstract

Investigating salient attributes related to diversification amongst fifty number of Mungbean genotypes (Vigna radiata L.), accomplished by conducting the analysis of variance, estimation of heritability, genetic advance as mean percentage, correlations, coefficient of variablity as well as the analysis of principle components including examination of single linkage cluster where ten number of plant parameters were analyzed for yield related determinants as days in number for flowering (DNF), days in number for maturity (DNM), , primary branches per plant (PBP), secondary branches per plant (SBP), plant height (PH), silique number per plant (SNPP), silique length (SL), seeds per Silique (SPS), thousand grain weight (TGW) and grain yield per plant (GYP) and. Various plant parameters showed average to maximum observations of heritability (%) in broad sense including genetic advance. Highest values of heritability were detected from 0.835 (DNF) to 0.992 (SNPP) in all attributes except 0.343 (DNM). Genetic advance values were noted as 15.5480 for (SNPP) and 0.9231 for (DNM). Significant and positive correlation were exhibited by all number of yields relate components under studied. Principle components from PC1 to PC4 having value greater than one and exhibited variability of 65.1138 in different genotypes screened out regarding numerous agronomic traits. Rest of components viz; PC5 to PC10 contained lower than one eighteen values. The principal component one (PC1)was very much linked to DNF and DNM whereas second PC associates to TGW, SPP and PH. Principal component three resulted positive effects for PBP, SBP and PH. Moreover, the Fourth principal component was highly linked with SL, SNPP and SBP and positive to three attributes (SL, SBP and SPS). Broad sense heritability with high ranked values were coupled with higher genetic advance in the attributes exploring the information that these mentioned parameters showed influence of additive genetic variance leading sorting of the crop material results a fast development in breeding program. Groups of genotypes with better agronomic parameters isolated which explore the genetic prospective to shift genes of desirable characters for promoting yield capacity of germplasm.