Assessment of genetic diversity in ricebean germplasm for yield traits

DOI: 10.18805/ag.D-4665    | Article Id: D-4665 | Page : 58-61
Citation :- Assessment of genetic diversity in ricebean germplasm for yield traits.Agricultural Science Digest.2018.(38):58-61

Sanchit Thakur and Neelam Bhardwaj

Sanchit Thakur and Neelam Bhardwaj
Address : College of Agriculture, Chaudhary Sarwan Kumar Himachal Pradesh Agricultural University, Palampur-176 062, Himachal Pradesh, India.
Submitted Date : 11-08-2017
Accepted Date : 25-09-2017


Genetic diversity was studied in 40 ricebean germlasm accessions collected mostly from the different parts of NW Himalayas using Mahalanobis’s D2 statistics. In the present investigation with non-hierarchical Euclidean cluster analysis, 40 genotypes of ricebean were grouped into two clusters. While cluster II contained only one genotype i.e PRR-2007-2, all other genotypes were grouped into cluster I. The maximum contribution towards the genetic divergence was exhibited by pods/cluster (19.10%) followed by plant height (15.77%), seed yield/plant (15.00%) and days to flowering (15%). Lowest contribution towards the genetic divergence was exhibited by seeds per pod (0.13%). Cluster distance observed for cluster II was 10.36 followed by cluster I which was 3.23. Cluster 1 showed maximum cluster mean values for all characters viz., days to flowering, days to maturity, plant height, branches/plant, pods/plant, pod length, 100-seed weight, seeds/pod, clusters/plant, pods/cluster and seed yield/plant, while cluster 2 showed lowest values for all the characters studied. Based on present study, parents for hybridization programme for incorporation of earliness and determinate habit which is the major bottleneck in the popularization of this underutilized pulse can be selected from cluster II whereas for other traits parents can be selected from cluster I. 


Divergence Genetic variability Ricebean.


  1. Gupta S, Pandey A, Kumar A and Pattanayaka. (2014). Evaluation of genotypic variation and suitability of ricebean genotypes for mid-altitudes of Meghalaya, India. Legume Research, 37: 56-58
  2. Mahalanobis PC. (1936). On the generalized distance in statistics. Proceedings National Academy of Science 2: 49-55
  3. Misra RC, Dey A and Sahu PK. (2009). Genetic divergence in gamma-rays induced mutants of ricebean (Vigna umbellata). Legume Research, 32: 25-30
  4. Murthy BR and Arunachalam V (1966). The nature of divergence in relation to breeding system in some crop plants. Indian J. Genetics, 26(1): 188-198
  5. Panchta R, Hooda JS, Yadav IS. (2012). Genetic divergence studies of ricebean genotypes. Forage Research, 37:4
  6. Rao CR. (1953). Advanced Statistical Methods in Biometrical Research. John Wiley and Sons Inc. New York. 

Global Footprints