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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(10): 138-144
DOI: https://doi.org/10.20546/ijcmas.2017.610.017


Combining Ability and Gene Action Studies in Some Genetic Stocks of Tomato (Solanum lycopersicum L.)
Tanvi Raj1, Madan Lal Bhardwaj3, Saheb Pal4* and Rajesh Kumar Dogra2
1Department of Vegetable Science
2Department of Fruit Science, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173230, India
3Regional Horticultural Research and Training Station, Dr. YS Parmar University of Horticulture and Forestry, Jachh, Kangra, Himachal Pradesh 176202, India
4Division of Vegetable Crops, ICAR- Indian Institute of Horticultural Research, Hessaraghatta, Bengaluru, Karnataka 560089, India
*Corresponding author
Abstract:

An experiment was conducted to find out the general and specific combining abilities of ten lines and two testers in tomato. Among the lines, EC-620410 was found good general combiner for days to 50% flowering and fruit shape index (P/E), BT-1-1 had maximum GCA for number of fruits per cluster, average fruit weight, fruit yield per plant, harvest duration, total soluble solids and ascorbic acid content and lesser severity of Alternaria, whereas, among the testers, FT-5 was good general combiner for most of the traits except for average fruit weight, number of locules per fruits and plant height. F1 hybrid from cross combinations, EC-191535 × Solan Lalima was good in terms of earliness, had better fruit shape and fruit yield per plant. Hybrids of BT-1-1 × FT-5 were superior in terms of number of fruits per cluster and per plant, whereas, hybrids of BT-1-1 × Solan Lalima were found promising for average fruit weight. Predominance of non-additive gene action was recorded in almost all the traits under study except for total soluble solids and Alternaria blight severity, which showed dominant gene action. Therefore, most of the important yield and quality traits of tomato can be improved by heterosis breeding by selecting the parents having good specific combining ability for the target trait(s).


Keywords: Combining ability, Gene action, Tomato, GCA, SCA, Line and tester.
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How to cite this article:

Tanvi Raj, Madan Lal Bhardwaj, Saheb Pal and Rajesh Kumar Dogra. 2017. Combining Ability and Gene Action Studies in Some Genetic Stocks of Tomato (Solanum lycopersicum L.).Int.J.Curr.Microbiol.App.Sci. 6(10): 138-144. doi: https://doi.org/10.20546/ijcmas.2017.610.017