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 |
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).
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