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 |
The present investigation was undertaken in 23 genotypes of blackgram [Vigna mungo (L.) Hepper] to study the genetic variability parameters, correlation and path analysis during Kharif, 2019 in Randomized Block Design with three replications. The observations were recorded for fourteen quantitative characters to study genetic variability, heritability, genetic advance, correlation and path analysis. The analysis of variance indicated significant differences among twenty three genotypes for all the characters studied. On the basis of mean performance, the highest seed yield per plant was observed for the blackgram genotypes SU-Urd-23 followed by VBN-6, SU-Urd-34 and SU-Urd-33.The estimates of PCV for all characters were higher than the estimates of GCV indicating the presence of environmental component along with genetic component. High GCV and PCV were observed for number of clusters per plant, number of pods per plant, harvest index, seed yield per plant indicating high variability for these traits. High heritability coupled with high genetic advance as per cent of mean was recorded for plant height, number of clusters per plant, number of pods per plant and harvest index. This indicates the preponderance of additive gene action and hence phenotypic selection would be more effective for further improvement of these traits. Correlation association studies revealed that the characters number of clusters per plant, number of pods per plant, number of pods per cluster, number of seeds per pod and harvest index showed significant and positive correlation with seed yield per plant indicating that selection based on these characters would bring about simultaneous improvement in the seed yield. Path analysis revealed that number of clusters per plant, number of pods per plant, number of pods per cluster and harvest index hadtrue relationship by establishing significant positive associations and positive direct effects on seed yield per plant.
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