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Wednesday, January 27, 2016

Genetic analysis of seed

Genetic analysis of seed yield and quantitative traits in pigeonpea (Cajanus cajan L. Millsp.)



M. B. Parmar, K. B. Kathiria





Abstract : Success of breeding programme depends upon the nature of gene action involved in controlling the traits. Hence, the present study was conducted using six generations (P1, P2, F1, F2, B1 and B2) of the crosses T 15-15 BSMR 853, AVPP 1 LRG 41, AGT 2 ICP 8863 and GT 101 ICPL 84060 of pigeonpea to know significance of additive-dominance model, nature of gene action, heterosis and inbreeding depression. The individual scaling test and χ2 value of joint scaling test was significant with all the crosses for most of the quantitative traits. Non-additive gene action was important for seed yield per plant while additive and non-additive effects were found to be more pronounced for yield contributing traits. Dominace x dominance inter-allelic interaction (l) was more important than additive x additive (i) for the traits days to 50 per cent flowering, days to maturity, plant height,



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