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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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

Int.J.Curr.Microbiol.App.Sci.2017.6(9): 3346-3357
DOI: https://doi.org/10.20546/ijcmas.2017.609.413


Component Traits in Sunflower (Helianthus annuus) Vikas V. Kulkarni1* and S.M. Supriya2
Vikas V. Kulkarni1* and S.M. Supriya2
1AICRP on Sunflower, MARS, UAS – Raichur, Karnataka, India
2Department of Genetics and Plant Breeding, AC, Dharwad, Karnataka, India
*Corresponding author
Abstract:

Major improvement in sunflower breeding requires heterotic hybrids which can be achieved by tapping combining ability of F1 hybrids developed from crossing of two genetically diverse female lines with male testers. In the present study, 56 hybrids were evaluated derived from four lines and fourteen testers’ crosses in a line × tester mating design. The analysis of variance revealed existence of highly significant differences (p=0.05) among genotypes, parents and parents vs crosses indicating the presence of heterosis for quantitative traits in sunflower. The parental lines CMS-A6 and CMS-A2 and testers DOR-R3 and R-1F proved to be good combiners having the highest positive General Combing Ability (GCA) effect for yield (5.491**) and yield components traits and negative effect for days to 50% flowering (-1.482**) and plant height (-15.71**). The crosses CMS-A5 x R-103, CMS-A6 x R-103, CMS-A6 x R-7 and CMS-A1 x RGM-49 are promising hybrid combinations for seed yield as indicated by significant Specific Combing Ability (SCA) effects. These identified four hybrids can be taken to multi-location trials for further evaluation.


Keywords: Sunflower, Combining ability, Heterosis, Gene action.
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How to cite this article:

Vikas V. Kulkarni and Supriya, S.M. 2017. Heterosis and Combing Ability Studies for Yield and Yield Component Traits in Sunflower (Helianthus annuus).Int.J.Curr.Microbiol.App.Sci. 6(9): 3346-3357. doi: https://doi.org/10.20546/ijcmas.2017.609.413