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 |
Cowpea [Vigna unguiculata (L.) Walp] is most important widely adapted, stress tolerant grain legume, vegetable and fodder crop in tropical and sub-tropical regions. Two diverse parents were crossed (C-152 × V-16) and advanced to F3 generation. The magnitude of variation, heritability, genetic advance, correlation and path co efficient analysis were estimated in a set of 194 F3 progenies. Grain yield is complex and is determined by several component traits. The traits having high heritability and significant positive correlation with the grain yield can be utilized for indirect selection for genetic improvement. A moderate phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) estimates were recorded for plant height (15.75% and 12.91%) and number pods per plant (16.29% and 11.42%). High heritability coupled with high genetic advance as per cent of mean (GAM) was observed for plant height (67.13% and 21.78%) and moderate heritability and GAM was observed for number pods per plant (49.14% and 16.49 %). Path coefficient analysis revealed that seed yield was primarily influenced by number pods per plant, number seeds per pod and 100 seed weight which had maximum direct effect on seed yield per plant. Information obtained in this study suggests that traits like plant height, number pods per plant, number seeds per pod and 100 seed weight could be used as selection criteria for grain yield improvement at segregating populations of cowpea.
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