International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:6, June, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(6): 2645-2652

Combining Ability and Genetic Action Studies for Yield and Its Related Traits in Maize (Zea mays L.)
Rajesh*, S. Sudheer Kumar, V. Narsimha Reddy and A. Siva Sankar
Department of Genetics and Plant Breeding, College of Agriculture, PJTSAU, Rajendranagar, Hyderabad-500030, Telangana, India
*Corresponding author

Forty five hybrids were generated from crossing fifteen lines with three testers in line × tester design. The hybrids along with parents were evaluated for yield and yield component traits to study combining ability and gene action in maize. The general combining ability (gca) and specific combining ability (sca) were significant for all the characters, which indicates the importance of both additive and non-additive genetic components. However it is found that there was predominance of non-additive gene action was recorded for all the characters. Among the female lines, BM 5050, BM 1234, BM 3511-2 and BM 3521 A-2 and in testers viz., BML 10 and BML 7 were found to be good general combiners for grain yield and yield component traits. The most promising specific combiners for grain yield and other traits were BM 5050 × BML 10, BM 3511-2 × BML 7, BM 1234 × BML 10, BM 1234 × BML 13 and BM 5050 × BML 7. These hybrids can be further tested over locations before releasing as commercial hybrids.

Keywords: Maize, combining ability, gca, sca, additive, dominance

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How to cite this article:

Rajesh V., S. Sudheer Kumar, V. Narsimha Reddy and Siva Sankar A. 2018. Combining Ability and Genetic Action Studies for Yield and Its Related Traits in Maize (Zea mays L.).Int.J.Curr.Microbiol.App.Sci. 7(6): 2645-2652. doi:
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