Vol. 6, Issue 3 (2018)
Diallel analysis for combining ability studies in castor (Ricinus communis L.)
Author(s): Jayesh J Patel, DA Patel, Hitiksha K Parmar, Azadchandra S Damor and Dixita K Patel
Abstract: The present experiment was conducted with forty-five F1s developed through diallel mating design excluding reciprocals along with ten parents and a check in RBD with three replications. Mean sum of squares for general combining ability found significant for all the characters except days to maturity, 100 seed weight and shelling out turn. Whereas, for specific combining ability, it was significant for all the characters except 100 seed weight, shelling out turn and oil content, indicating the importance of both additive and non- additive gene actions in the inheritance of these traits. The magnitude of combining ability variance revealed prime role of additive genetic variance for inheritance of plant height up to primary raceme, number of nodes up to primary raceme and oil content. Whereas, non-additive gene action was preponderant for days to 50% flowering, days to maturity, total length of primary raceme, effective length of primary raceme, number of capsules on primary raceme, number of effective racemes per plant, total seed weight of primary raceme and seed yield per plant. Among the parents, SKI-324 was found good general combiner for seed yield per plant and some of its component traits and hence this parents would be of immense value for development of high yielding inbred line. Parents, SH-1 and JI-358 were found good general combiners for earliness. The estimates of sca effect revealed that cross SKI-324 x VH-63-1-3, JI-358 x SKI-324 and SH-42 x PCS-124 were found promising cross combinations for development of high yielding variety.
Pages: 2950-2956 | 527 Views 123 Downloads
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How to cite this article:
Jayesh J Patel, DA Patel, Hitiksha K Parmar, Azadchandra S Damor, Dixita K Patel. Diallel analysis for combining ability studies in castor (Ricinus communis L.). Int J Chem Stud 2018;6(3):2950-2956.
