Genetic divergence studies in okra [Abelmoschus esculentus (L.) Moench.] genotypes
Abstract
Genetic divergence of 27 okra genotypes was studied using Mahalanobis D2 statistics revealed that considerable genetic diversity among genotypes in okra. Twenty seven diverse genotypes were grouped into four clusters with the highest of 20 genotypes in the cluster I, 5 in the cluster II and one each genotype in the cluster III and IV. Intra and inter cluster D2 values ranged from 32.27 to 38.64 and 45.17 to 120.09 respectively. It showed that inter cluster distance was higher than the intra cluster distance indicating wide genetic diversity among the genotypes of different groups. The cluster means of 15 characters among four clusters indicated that high genetic variability range present for yield per plant (155.2-334.1), average weight of edible pod (19.6-38.8), number of seeds per pod (58.7-93.6) and plant height (109.3-133.3). The relative contribution of studied characters indicated that weight of 100-seeds (1082), followed by number of epicalyx per pod (1950), average weight of edible pods (2272), number of seeds per pods (2278) and plant height (2465) contributed highest towards the genetic divergence. Genotype having these characters in different cluster could be used in breeding programme to develop high yielding cultivars in okra.
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.
