Selection Parameters for Green POD Yield and Its Component in Table Pea(Pisum SativumL.)

Abstract

The heritability (narrow sense), genetic advance and association of characters for 12 characters were estimated in a 10 x 10 diallel crosses in table pea. The range of heritability of yield contributing traits were recorded from 4.34 and 25.95 (number of pods per plant) to 83.57 and 79.54 pod length in F1 and F2 generation, respectively High estimates heritability were observed for days to flower and maturity of edible pods, node number of first pod formed, plant height, pod length, green pod yield per plant, harvest index and protein content in both F1 and F2 generations while number of productive branches per plant only in F2. It indicated greater contribution of additive genetic components except those traits which revealed high heritability indicated both additive and non-additive genetic components. Moderate heritability estimates were recorded for number of productive branches per plant, number of developed ovules per pod and shelling percentage in F1 and number of pods per plant in F2 generation. The maximum genetic gain coupled with high heritability estimates was recorded for plant height followed by green pod yield per plant in both F1 and F2 generations indicated the role of additive gene action, thus, the selection in early generation would be effective for improving these traits. The genetic advance in percentage of mean was moderate for all the characters except plant height and green pod yield per plant in both the generations. Green pod yield per plant showed positive and significant genotypic correlation with pod length and number of developed ovules per pod and negatively significant with plant height.