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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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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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Original Research Articles

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.2020.9(4): 1227-1236
DOI: https://doi.org/10.20546/ijcmas.2020.904.145


Combining Ability and Gene Action Studies in New Intra Hirsutum Hybrids with Suggested Breeding Strategies
V. Udaya1* and Rajesh S. Patil2
1College of Agriculture, Dharwad, UAS Dharwad, India
2Agricultural Research Station, Dharwad, UAS Dharwad, India
*Corresponding author
Abstract:

The prime objective of any plant breeder is developing new cultivars with high yield. The present investigation aimed at estimating the general combining ability among parents and specific combining ability in hybrids for various yield and related traits in upland cotton. Forty hybrids were obtained by crossing 8 elite lines with 5 selected testers in a Line × Tester fashion. All 40 hybrids, 13 parents along with 3 checks were evaluated under rainfed condition during kharif 2017-18at Agriculture Research Station, Dharwad Farm. Analysis of variance showed significant differences among parents and hybrids for most characters indicating presence of genetic variability. The ratio between variance due to GCA to that of SCA was less than unity for all characters indicating preponderance of non-additive gene effects in the inheritance of characters. Among lines, FLT-36, CPD-462 and among testers, SCS-1061, registered significant positive gca effects for seed cotton yield. Cross CPD-462 × SCS-1061 recorded high seed cotton yield with positive significant sca effects.


Keywords: Combining ability, Gene effects, Line, Tester
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How to cite this article:

Udaya, V, and Rajesh S. Patil. 2020. Combining Ability and Gene Action Studies in New Intra Hirsutum Hybrids with Suggested Breeding Strategies.Int.J.Curr.Microbiol.App.Sci. 9(4): 1227-1236. doi: https://doi.org/10.20546/ijcmas.2020.904.145