Genetic divergence in mutants and land races of blackgram (Vigna mungo [L.] Hepper) from odisha

  • K. K .Panigrahi*, B. Baisakh, M. Kar, and A. Mohanty
Keywords: Black gram, divergence, yield attributes, mutants and land races

Abstract

A line x tester crossing programme was taken up with ten lines and five testers with a view to identify the best Genetic diversity using Mahalanobis D-square (D2) techniques was studied for yield and yield contributing traits of 44 (17 Land races genotypes from diverse origin and 27 mutants) blackgram genotypes of Odisha. These genotypes were grouped into twelve clusters. Cluster II and cluster V had maximum of nine genotypes each followed by cluster IV having eight genotypes. The inter cluster distance were greater than the intra cluster distance revealing that considerable amount of genetic diversity existed among the accession. The maximum and minimum divergence was revealed between cluster IV with XI and cluster I with X respectively. Cluster VI exhibited high mean values for number of clusters/plant, pods/plant and seeds/pod. Cluster V recorded high mean values for pod length and 100 seed weight. The characters contributing maximum towards diversity among the accessions are days to maturity (27.16 %), yield/plant (22.19 %), 100 seed weight (18.07 %) and plant height (15.85%) .These characters combining with early maturity are the major traits causing genetic divergence among the accessions. The genotypes in cluster XI with VI, XII with V and V with VI are having moderate divergence with high mean for many characters including yield and can be successfully utilized in hybridization programmes to get desirable transgressive segregants. It is assumed that maximum amount of heterosis will be manifested in cross combinations involving the parents belonging to most divergent clusters
Published
07-11-2014
How to Cite
K. K .Panigrahi*, B. Baisakh, M. Kar, and A. Mohanty
Genetic divergence in mutants and land races of blackgram Vigna mungo [L.] Hepper from odisha. 2014. Electronic Journal of Plant Breeding, 5 3, 567-572. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/54
Issue
Vol 5 No 3 (2014)
Section
Research Note

It is certified that:

  • The corresponding author is fully responsible for any disputes arising due to the publication of his/her manuscript.
  • The article has been seen by all the authors who are satisfied with its form and content.
  • The sequence of names of authors in the by-line is as per their relative contribution to this experiment, giving due credit to all scientists who made notable contribution to it.
  • All the authors fully understand that inclusion of any other co-authors or exclusion of any co-authors is not possible once the article has been submitted to the journal.
  • The corresponding author takes full responsibility for this article.
  • The address of the organization where the research was conducted is given.
  • The article is exclusive for this journal, and the results reported here have not been sent (and will not be sent during its consideration by this journal) for publication in any other journal.
  • Authors agree to abide by the objective comments of referees and do agree to modify the article into a short note as per the recommendation, for publication in the Electronic Journal of Plant Breeding.
  • If published in Electronic Journal of Plant Breeding, the copyright of this article would vest with the Indian Society of Plant Breeders, who will have the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in it, and neither we nor our legal heirs will have any claims on royalty.