National Academy of Agricultural Sciences (NAAS)
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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 |
General and specific combining abilities (GCA and SCA) were estimated using six lines of tomato (Solanum lycopersicum L.) and three testers and their F1 hybrids, bred in line x tester fashion. The present study revealed that none of the parent was best combiner for all the traits indicating differences in genetic variability for different characters among the parents. Line x tester effect was found significant for all the characters under the study except for plant height. The magnitude of gca and sca variances indicated importance of additive as well as non-additive gene action with predominance non-additive action for all the traits except plant height. Lines, LE-56 was found good general combiner for ascorbic acid, total carotenoids, reducing sugars, total sugars and lycopene content; LE-62 for plant height, TSS, reducing sugars and total sugars. Similarly tester, Punjab Chhuhara for total carotenoids and lycopene; tester Pusa Gaurav was found to be good combiner for plant height, reducing sugars and total sugars. F1 hybrids from cross combinations, LE-62 × Punjab Chhuhara were recorded with good specific combiner for number of primary branches per plant, total carotenoids, reducing sugars, total sugars and lycopene; LE-64 × Punjab Chhuhara for ascorbic acid, total carotenoids and lycopene; EC-165749 X Pusa Gaurav for TSS, reducing sugars and total sugars.
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