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 |
In the present investigation, 10 lines and 4 testers of bottle gourd were taken in line x tester analysis for analyzing magnitude of heterosis and degree of inbreeding depression observed for 10 characters of bottle gourd. Some crosses showed high degree of heterosis coupled with high degree of inbreeding depression indicating thereby that there is a greater role non-additive gene action controlling the expression of those characters. In contrast, there are few crosses where low heterosis was linked with high degree of inbreeding depression. This indicates that probably gene having additive effects are cancelled, leading to appreciable inbreeding depression for such characters. In addition, crosses showing high degree of heterosis are linked with low degree of inbreeding depression indicating that, possibly, gene with additive as well as non additive gene action play important role in expression of heterosis in such crosses.
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