Legume Research, volume 24 issue 2 (june 2001) :
ANALYSIS OF GENE EFFECTS IN PEA
Tyagi M.K., Srivastava C.P.
1Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, India
Chief Editor:
J. S. Sandhu
Vice Chancellor, SKN Agriculture, University, Jobner, VC, NDUAT, Faizabad, Deputy Director General (Crop Science), Indian Council of Agricultural Research (ICAR), New Delhi
ABSTRACT
The P1,P2,F1, F2, B1 and B2 of twelve pea crosses were studied for nine metric traits. The results of the studies suggested the presence of additive, dominance gene effects and epistatic interaction in almost all cases indicating the importance of both additive and non-additive gene action in the expression of these characters in the study. Duplicate type of epistasis was prevalent in most of the cases. A substantial amount of heterosis over better parent (HBP) was revealed by the crosses HUP2 x KPSDl, FCl x Tl63 and FCl x Pusa 10 for seed yield per plant, pods per plant, biological yield per plant and harvest-index. Suitable breeding strategies were suggested for the improvement of yield in pea.
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