Combining ability analysis for earliness and yield related characters in pea (Pisum sativum)

HANUMAN RAM; SHRI DHAR; H CHOUDHARY; R K SHARMA; A U SOLANKE; PRASAD PRASAD; B S TOMAR

doi:10.56093/ijas.v88i11.84912

Authors

HANUMAN RAM Scientist, ICAR-VPKAS, Almora, Uttarakhand
SHRI DHAR Principal Scientist, Division of Vegetable Science, Indian Agricultural Research Institute, New Delhi 110 012
H CHOUDHARY Principal Scientist, Division of Vegetable Science, Indian Agricultural Research Institute, New Delhi 110 012
R K SHARMA Principal Scientist, Division of Genetics, Indian Agricultural Research Institute, New Delhi 110 012
A U SOLANKE Scientist (SS), Division of Molecular Biology and Biotechnology, Indian Agricultural Research Institute, New Delhi 110 012
PRASAD PRASAD Scientist (SS), Division of Molecular Biology and Biotechnology, Indian Agricultural Research Institute, New Delhi 110 012
B S TOMAR Principal Scientist, Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi 110 012

https://doi.org/10.56093/ijas.v88i11.84912

Keywords:

Combining ability, Diallel, Pea, Pisum sativum, Yield

Abstract

A study was conducted on the combining ability analysis in a 11×11 half-diallel cross of garden pea (Pisum sativum L.). F₁ hybrids (55) along with 11 parental lines were grown in randomized block design with three replications. The mean square due to GCA and SCA were highly significant for all the characters indicating the importance of additive and non-additive genetic components for the characters under study. Further, σ²s was more than σ²g for all the characters suggested the importance of non-additive variance for the improvement of these characters. The parents P₂ (GP-17), P₅ (GP-473) and P₇ (VRP-7) were observed to be good combiners for most characters under study including yield per plant. The crosses P₆ × P₁₀, P₂ × P₈ and P₈ × P₁₀ were most promising combinations for total yield per plant. The results indicated the importance of recombinant breeding for effective utilization of non-additive genetic variance in garden pea.

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