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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

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

Int.J.Curr.Microbiol.App.Sci.2020.9(12): 2241-2244
DOI: https://doi.org/10.20546/ijcmas.2020.912.264


Genetic Divergence Analysis in Cowpea [Vigna unguiculata (L.) Walp.]
Navreet Kaur Rai*, A. K. Sharma, A. K. Parihar, Sangeeta Pal and Ravina Beniwal
Department of Genetics and Plant Breeding, College of Agriculture, SKRAU, Bikaner, India
*Corresponding author
Abstract:

Thirty cowpea genotypes were investigated to analyse the genetic divergence for twelve characters. These genotypes were clustered into 8 distinct groups using Mahalanobis D2 statistic and Tocher's method. Cluster I and cluster II were the largest comprised of 12 genotypes each. Cluster III, IV, V, VI, VII and VIII were monogenotypic indicating wide diversity from the rest and also from each other. The maximum intra cluster D2 value was observed within cluster II followed by cluster I suggesting that genotypes present in these clusters might have different genetical constitution. The highest inter cluster distance was registered between cluster II and cluster III followed by cluster II and cluster V and cluster II and cluster IV indicating wide divergence among these clusters. The crossing among the genotypes of these divergent clusters could be used in hybrid development programme of cowpea.


Keywords: Genetic divergence, Mahalanobis D2 statistic, Tocher's method
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How to cite this article:

Navreet Kaur Rai, A. K. Sharma, A. K. Parihar, Sangeeta Pal and Ravina Beniwal. 2020. Genetic Divergence Analysis in Cowpea [Vigna unguiculata (L.) Walp.].Int.J.Curr.Microbiol.App.Sci. 9(12): 2241-2244. doi: https://doi.org/10.20546/ijcmas.2020.912.264