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 |
Field trial was conducted to assess the magnitude of heterosis for nine traits in 33 inter-varietal crosses (synthesized by crossing 11 lines and 3 testers in LxT fashion) of urdbean along with a check variety ‘VBN (Bg) 4’ towards exploitation of hybrid vigour for early maturity and higher yields. The ANOVA revealed that mean squares due to genotypes, parents, crosses, lines, testers (except for plant height) and lines x testers (except plant height) were highly significant for all the traits under evaluation connoting the existence of wider genetic diversity among them. In general, the inter-varietal crosses showed desired heterosis for days to 50 per cent flowering and plant height i.e., negatively significant relative heterosis, heterobeltiosis and standard heterosis indicating their earliness in maturity. Based on experimental results of this investigation, two inter-varietal crosses viz., LBG 709 x PU 31, LBG 645 x VBN (Bg)6 and LBG 645 x PU 31 were found promising for most of the traits including seed yield. Therefore, exploitation of hybrid vigour may be rewarding in these crosses, paving way for genetic enhancement of this crop.
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