GENETIC DIVERGENCE STUDIES IN SOYBEAN (Glycine max L. MERRILL)

MAHESH MEENA¹*, SUDHANSHU JAIN², V.S. BHADORIA^3
1Department of Plant Breeding and Genetics, College of Agriculture, Rajmata Vijayaraje Scindia Krishi Vishwavidyalaya, Gwalior, M.P. India
²Department of Plant Breeding and Genetics, College of Agriculture, Rajmata Vijayaraje Scindia Krishi Vishwavidyalaya, Gwalior, M.P. India
³Department of Plant Breeding and Genetics, College of Agriculture, Rajmata Vijayaraje Scindia Krishi Vishwavidyalaya, Gwalior, M.P. India
* Corresponding Author : sudhanshujain07@yahoo.in

Received : 19-03-2017     Accepted : 07-04-2017     Published : 24-04-2017
Volume : 9     Issue : 19       Pages : 4196 - 4197
Int J Agr Sci 9.19 (2017):4196-4197

Keywords : Soybean, Genetic diversity, Inter and intra cluster distance
Academic Editor : S B Gokhale
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Plant Breeding and Genetics, COA, Gwalior for providing material and support
Author Contribution : None declared

An experiment was conducted during kharif 2013 on forty genotypes of soybean to study the nature and magnitude of genetic divergence using Mahalanobis’s D2 Statistics. The data were recorded on eleven important quantitative traits from the genotypes grown in randomized block design with three replications. The forty soybean genotypes were grouped into six clusters. The cluster III was the largest cluster with thirteen genotypes. Highest inter cluster distance was observed between cluster I & cluster VI followed by between V & VI and V and VI respectively. The genotypes JS 20-89 having diverse genetic base for yield contributing components (cluster VI) was identified for yield characters primary branches per plant (3.67), number of pods per plant (111.67), number of seeds per pod(2.78), number of three seeded pods per plant(95.33), harvest index (35.21) and seed yield per plant. Whereas genotypes RVS 2000-4, KDS 72, NRC 107, RVS 2002-22, RVS 2002-19, MAUS613 can be used for shorter maturity duration and plant height (cluster I) was identified for early maturity with early flowering habit and average plant height. Genotypes included in these two clusters can be utilized for future crop improvement programm.

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