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 |
Fifty-six germplasm lines of green gram [Vigna radiata (L.) Wilczek] were used to determine the extent of genetic diversity using Mahalanobis D2 statistic. The analysis was carried out for 20 quantitative traits. The D2 statistic performed on 20 quantitative traits grouped all 56 genotypes into eight divergent clusters. Cluster V (8559.766) had maximum intra-cluster distance while inter-cluster distance was highest between clusters III and VI(329997.938) Cluster means indicated that germplasm lines falling in cluster III and V possessed higher values for quantitative traits such as plant height, plant diameter, number of pods per cluster, number of pods per plant, number of seeds per pod, pod yield per plant, pod length, threshing %, leaf area, specific leaf weight, leaf area ratio, seed yield per plant, seed yield per plot and biological yield. Thus suggesting presence of high amount of genetic diversity between the genotypes of these clusters and expected to give higher frequency of transgressive segregants for higher yield. The present study revealed that Mahalanobis D2 statistic may be successfully utilized for determining genetic diversity and relationships among germplasm lines of Green gram.
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