Genetic analysis for yield and its components and protein content in table pea (Pisum sativum, L. var. hortense)

Abstract

Six generation (P1,P2,F1,F2,BC1 and BC2) of fifteen crosses namely Ajad P1x Ajad P2, Ajad P1 x KS195, Ajad P1 x KS149, Ajad P1 x KS136, Ajad P1 x Arkel, Ajad P2 x KS195, Ajad P2 x KS-149, Ajad P2 x KS136, Ajad P2 x Arkel, KS195 x KS-149, KS195 x KS136, KS195 x Arkel, KS149 x KS 136, KS149 x Arkel, KS136 x Arkel were evaluated for days to flower, plant length, number of green pods per plant, number of seeds per pod, green pod yield and protein content in a randomized block design (RBD). The data of six generation were subjected to scaling test to detect epistasis and genetic parameters m, d, h, i, j and l were estimated. Six parameters analysis revealed that in general dominance (h) was more pronounced than additive (d) in most of the crosses for different traits. It was further observed that character plant length were under major control of either additive or additive x additive gene action. The major role of dominance along with additive x dominance and dominance x dominance components of epistasis for days to flower, number of green pods per plant, number of seeds per pod, protein content and green pod yield per plant. Duplicate epistasis is more prevalent than complimentary type in the inheritance of the traits in this study.