ISSN : 0975-3710
EISSN : 0975-9107
R. PAVAN1*, C.M. WALI2
1Department of Genetics and Plant Breeding, University of Agricultural Sciences, Bangalore, 560 065, Karnataka
2AICMIP, Agricultural Research Station, Arabhavi, Belgaum, 591 310, Karnataka
* Corresponding Author : pavan_55agri@rediffmail.com
Received : 31-05-2016 Accepted : 01-02-2017 Published : 18-02-2017
Volume : 9 Issue : 8 Pages : 3871 - 3875
Int J Agr Sci 9.8 (2017):3871-3875
Keywords : Additive gene action, Line × tester, Maize, sca effects
Academic Editor : Lynne Carpenter Boggs, Dr Puttaramanaik
Conflict of Interest : None declared
Acknowledgements/Funding : Authors acknowledge the support provided by the AICMIP, ARS, Arabhavi for carrying out the research
Author Contribution : This article was a part of M.Sc research conducted by Pavan, R under the guidance of Dr. M. C. Wali
An investigation was carried out to assess the combining ability and nature of gene action in respect of grain yield and its attributing traits in 87 single cross hybrids of maize developed by crossing three testers with 29 newly developed inbreeds from National Yellow Pool in line × tester mating design and grown in RBD with two replications at AICMIP, ARS, Arabhavi during rabi/summer 2008-09. Studies revealed that, the preponderance of non-additive gene action for all quantitative traits under study. Parents, YP 4#07-2, YP 4#07-26 and CI-5 were identified as good general combiner for earliness and YP 4#07-20 is identified as good general combiner for grain yield per hectare. Among 87 SCH, ten hybrids had superior per se performance for grain yield and it component characters. Among these crosses, YP 4#07-20 × CI-5 recorded significant sca effects and the gene action might be of non-additive nature and other nine crosses recorded non significant sca effect and the gene action might be of additive nature. Hence, these crosses can be utilized for pedigree breeding programme to evolve high yielding hybrid and varieties, respectively.