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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2019, Volume : 7, Issue : 3
First page : (362) Last page : (368)
Article doi: : http://dx.doi.org/10.18782/2320-7051.7444

Combining Ability Analysis in Rice (Oryza sativa L.)

U. M. Patel¹*, G. O. Faldu², P. B. Patel³ and Savankumar N. Patel¹

¹Department of Genetics and Plant Breeding, N. M. College of Agriculture, Navsari Agricultural University, Navsari-396450, Gujarat, India
²Main Cotton Research Station, Navsari Agricultural University, Surat-385007, Gujarat, India
³Main Rice Research Center, Navsari Agricultural University, Navsari-396450, Gujarat, India
*Corresponding Author E-mail: umangpatel171@yahoo.com
Received: 6.05.2019  |  Revised: 3.06.2019   |  Accepted: 8.06.2019  

 ABSTRACT

The experimental material, comprising of 3 females x 11 males conducted to study the nature and magnitude of gene action i.e. general combining ability (GCA) and specific combining ability (SCA) of sixteen yield and yield contributing character in rice at Navsari Agricultural University, Navsari, India during kharif 2017. Highly significant genotypic differences were observed that revealed the wild range of variability among the genotypes studies. The SCA variance were found significant for all the characters While GCA variance were not significant for all the characters. The higher ratio of σ2gca/σ2sca indicated the preponderance of non-additive gene action for all the characters, except for plant height. Among the Parents viz., NVSR-319, IET-24333, NVSR-371 and NVSR-2103 were good general combiners for grain yield per plant as well as one or more of its yield contributing traits. Cross combination, NVSR-319 x NVSR-2101, GNR-3 x NVSR-359 and IET-24333 x NVSR-2120 were observed to be good specific cross combination for grain yield per plant and most of its yield attributes.

Key words: Line x tester, General combining ability, Specific combining ability, Rice

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Patel, U.M., Faldu, G.O., Patel, P. B. and Savankumar N. Patel, Combining Ability Analysis In Rice (Oryza sativa L.), Int. J. Pure App. Biosci.7(3): 362-368 (2019). doi: http://dx.doi.org/10.18782/2320-7051.7444