Nature and Magnitude of Genetic Divergence among Blackgram [Vigna mungo (L.) Hepper] Genotypes

DOI: 10.18805/ag.D-5261    | Article Id: D-5261 | Page : 63-67
Citation :- Nature and Magnitude of Genetic Divergence among Blackgram [Vigna mungo (L.) Hepper] Genotypes.Agricultural Science Digest.2022.(42):63-67
Sidramappa, P.H. Kuchanur, M. Shobharani, B. Arunkumar, S.A. Kulkarni, H.C. Sowmya siddugpb@yahoo.co.in
Address : Department of Genetics and Plant Breeding, Agricultural Research Station, Bidar-585 401, University of Agricultural Sciences, Raichur, Karnataka, India.
Submitted Date : 30-09-2020
Accepted Date : 12-03-2021


Background: The choice of parents is a very crucial step which decides the success or failure of any plant breeding programme. Using the diversity analysis, parents with high diversity can be chosen to generate high magnitude of useful variability. Therefore, the present investigation was planned to assess the genetic divergence among 100 genotypes of blackgram for identification of diverse genotypes for their utilization in breeding programme.
Methods: The material for study consisted of 100 blackgram genotypes collected from different sources and were evaluated at ARS, Bidar during kharif-2018. The experimental trial was laid out in lattice design (10×10) with two replications. Observations on 12 quantitative characters. The genetic divergence was assessed by using Mahalanobis’ generalized distance (D2) and clustering of genotypes by Tocher’s method.
Result: The relative contribution of each character to the total diversity was different and contribution of days to maturity was maximum (66.04%) followed by reproductive period (15.86%). The genotypes were grouped into nine clusters by Tocher’s method. The cluster pattern revealed that, cluster II was the largest with 28 genotypes followed by cluster I (26), V (19), III (11), IV (10) and VII (3) and remaining viz., VI, VIII and IX were solitary clusters. The inter-cluster distance ranged from 15.50 to 514.44 indicating high magnitude of diversity. The genotypes belonging to cluster III viz., BDU-20, BDU-3-20, BDU-68, TRCRU-22 possessed desirable traits like earliness and higher seed size and genotypes of cluster IV viz., BDU-9, BDU-10, LBG-752 possessed traits like higher reproductive period, maturity and high seed yield were identified as diverse. These genotypes could be involved in recombination breeding programme for the improvement productivity in blackgram.


Blackgram Character/trait Cluster Diversity Genotype


  1. Anonymous, (2017). Pulses in India: Retrospect and Prospects: Directorate of pulses development, GOI, Bhopal, India.
  2. Anonymous, (2020). Kharif Pulses Prospects -2020-21, DPD, Bhopal.
  3. Anu, B., Priyanka, G., Meghawal and Lal, G.M., (2017). Evaluation of genetic variability and heritability in blackgram [Vigna mungo (L.) Hepper] genotypes. J. of Pharmacognosy and Phytochemistry. 6(4): 493-496.
  4. Dasgupta, J. and Das, P.K., (1991), Genetic divergence in blackgram. Indian J. Agril. Sci. 25: 7-13.
  5. Gantait, S. and Das, P.K. (2009). Genetic divergence, adaptability and genotypic response to YMV in blackgram. Legume Res. 32(2): 79-85.
  6. Geethanjali, Anuradha and Suman (2015). Genetic diversity for yield and its components in blackgram (Vigna mungo L.). Int. J. of Sci. Res. 4(8): 563-565.
  7. Jain, H.K. (1975). Breeding for yield and other attributes in grain legumes. Indian J. Genet. Plant Breed. 35: 169-187.
  8. Konda, C.R., Salimath, P.M. and Mishra, M.N. (2007). Genetic diversity in blackgram [Vigna mungo (L.) Hepper.]. Legume Res. 30(3): 212-214.
  9. Kumar, S., Anilkumar, Sonika, J., Vikas, A., Singh, A. P., Brinder, S. and Jai, K. (2018). Divergence studies of blackgram (Vigna mungo L) for selection of drought tolerant genotypes under rainfed conditions of North Western Himalayas in J and K, India. Legume Res. 44(2): 158-163. 
  10. Mahto, A.V. and Mahto, J.L. (1997). Correlation and regression study in black gram for yield attributes under rainfed conditions. Environ. Ecol. J. 15: 556-558. 
  11. Mahalanobis, B.C. (1936). On the Generalized Distance in Statistics. Proc. Nat. Acad. Sci. India, 2: 49-55.
  12. Ram, T. and Singh, S. (1993). Genetic analysis of yield and its components in blackgram. Indian J. Pulses Res. 6: 194-196.
  13. Rao, C.R. (1952). Advanced Statistical Methods in Biometrics Research, John Wiley and Sons, New York, pp. 357-338.
  14. Senapati, N. and Misra, R.C. (2010). Genetic divergence and variability studies among micromutants in blackgram [Vigna mungo (L.) Hepper]. Legume Res. 33(2): 108-113.
  15. Singh, R.B. and Bains, S.S. (1968). Genetic divergence for ginning outturn and its components in upland cotton (Gossypium hirsutum L.) varieties. Indian J. Genetic. 28: 262-268.

Global Footprints