International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (261) Last page : (273)
Article doi: http://dx.doi.org/10.18782/2320-7051.3050
Combining Ability Analysis for Seed Yield per Plant and Its Components in Castor (Ricinus communis L.)
Jalu, R. K.*, Patel, J. B., Patel C. K. and Paneliya, M. R.
Department of Genetics and Plant Breeding, College Of Agriculture, Junagadh Agricultural University, Junagadh-362 001, Gujarat, India
*Corresponding Author E-mail: rohit.jalu9@gmail.com
Received: 29.05.2017 | Revised: 8.06.2017 | Accepted: 10.06.2017
ABSTRACT
Combining ability for seed yield and its component traits in castor was studied using line x tester mating design involving four diverse pistillate testers (Females) and ten inbred lines (males). Analysis of variance revealed that, The estimates of σ2gca were higher than the corresponding σ2sca for days to flowering of primary raceme,days to maturity of primary raceme, plant height up to primary raceme, number of nodes up to primary raceme and number of capsules on primary raceme, indicated that the preponderance of additive component of genetic variance for these traits, while for the remaining traits, non-additive component of genetic variance was predominant. Four parental lines, SKP 106 and JP 96 among the females and JI 441 and JI 435 among the males, exhibited good general combining ability effects for seed yield per plant and important yield components. The best three hybrids on the basis of significant positive sca effects for seed yield per plant were JP 96 x JI 437 (good x average combiners), JP 104 x JI 434 (poor x poor combiners) and SKP 84 x JI 437 (average x average combiners). The top high yielding hybrids SKP 84 × JI 435 (average x good combiners), JI 96 x JI 437 (good x average combiners) and SKP 84 × JI 437 (average x average combiners), with significant heterobeltiosis as well as standard heterosis, also depicted significant sca effects for seed yield per plant.
Key words: Combining ability, GCA, SCA, Gene action.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Jalu, R.K., Patel, J.B., Patel C.K. and Paneliya, M.R., Combining Ability Analysis for Seed Yield per Plant and Its Components in Castor (Ricinus communis L.), Int. J. Pure App. Biosci.5(4): 261-273 (2017). doi: http://dx.doi.org/10.18782/2320-7051.3050
