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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
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.2018.7(6): 510-514
DOI: https://doi.org/10.20546/ijcmas.2018.706.057


Genetic Divergence among Pigeonpea Genotypes Using Mahalonobis D2 Statistics
S.M. Indhu1, C. Vanniyarajan2*, K. Monisha1, P. Magudeeswari1, K.R. Ramya3 and R. Gowthami4
1Department of Plant Breeding and Genetics, TNAU, Coimbatore, Tamil Nadu, India
2Department of Plant Breeding and Genetics, AC & RI, Madurai, TNAU, India
3College of Agriculture, Central Agricultural University, Imphal, India
4ICAR-NBPGR, New Delhi, India
*Corresponding author
Abstract:

The present study was conducted to evaluate the genetic divergence among twenty five pigeonpea germplasm using Mahalonobis D2 statistics for seven different traits during kharif 2015. Analysis of variance depicted the significant differences among the traits which indicated the presence of variability in the germplasm. D2 clustering grouped the genotypes into ten clusters. Based on the intercluster distance (1844.86) cluster VIII and X were the most diversified clusters and genotypes from these clusters can be used in the hybridization programme for further improvement. The selection and choice of genotypes as parents mainly depends upon contribution of characters towards divergence. The maximum contribution to genetic divergence was contributed by days to fifty percent flowering and single plant yield followed by number of seeds per pod, plant height and hundred seed weight. Hence selection for these traits would be rewarding in selection of genotypes for hybridization programme.


Keywords: Mahalanobis D2 statistic, Pigeonpea, Cluster analysis, Cluter mean, % contribution
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How to cite this article:

Indhu, S.M., C. Vanniyarajan, K. Monisha, P. Magudeeswari, K.R. Ramya and Gowthami, R. 2018. Genetic Divergence among Pigeonpea Genotypes Using Mahalonobis D2 Statistics.Int.J.Curr.Microbiol.App.Sci. 7(6): 510-514. doi: https://doi.org/10.20546/ijcmas.2018.706.057