Genetic variability estimation was conducted in twelve genotypes of peas during growing season 2011-12. Analysis of variance was highly significant for all characters studied except plant height present high scope for selection. The highest genotypic and phenotypic co-efficient of variation were recorded for pod per plant (31.62, 31.99) followed by seed yield per plant (22.87, 23.65), cluster per plant (18.81, 20.21) and lowest was noted for days to maturity (1.88, 2.15). High heritability with high genetic advance as percent of means was recorded for pod per plant (0.98, 64.37%) followed by seed yield (0.94, 45.56%). The lowest was observed for plant height (0.35, 13.80%). The study indicates that emphasis should be given to these characters for yield improvement.

ABSTRACT

Genotypic and phenotypic variation, heritability and genetic advance expressed as percentage of mean for yield and yield contributing traits were studied in 14 genotypes of mung bean (Vigna radiata L.). Genotypic and phenotypic variances were high for number of pods per plant (18.60 and 19.50) and days to maturity (16.39 and 17.69). Heritability was high for 100-seed weight (0.99) and lowest for seed yield per plant (0.42). High heritability with high genetic advance as percentage of mean for number of pods per plant showed the additive gene effect for these characters. Analysis of variance for parameters showed the significant variations for all variables under consideration. Genotype 8010 produced maximum number of pods per cluster (3.72) and number of pods per plant (27.33). Maximum plant height (41.23) was recorded for genotype 8003 while genotype 98002 took maximum days to flowering (49.66) and days to maturity (86.66). Similarly, maximum 100-seed weight (5.64) and seed yield per plant (13.76) were recorded in genotypes 8004 and 8002, respectively. Existing variation may helpful for selection and further hybridization breeding program in future.

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