Pattern of agro-morphological trait relationship and genetic divergence in greengram [Vigna radiata (L.) Wilczek]
Keywords: Greengram, Bi-plot analysis, genetic distance, principle component analysis, selection criteria.
AbstractThirty six greengram genotypes were evaluated during kharif 2012 in three environments for analysis of quantitative traits. Association analysis showed significant positive relationship between seed yield and some of the agro-morphological traits viz., days to 50% flowering, primary branches per plant, secondary branches per plant, clusters per plant, pods per cluster, pod length, seeds per pod, pod mass, pod wall mass, seed mass, selling percentage, seed index and harvest index. Hence these traits may be used as selection criteria for yield improvement. Based on principle component analysis, pod length, seeds per pod, pod mass, seed mass, pod wall mass, selling percentage, seed index and harvest index were found important and can be added in breeding program. Sona selection had moderate to more diversity with all the genotypes due to their solitary nature, and can be used in breeding program for greengram improvement. Besides this, representative genotypes from each cluster may be selected for future hybridization to get good segregants in segregating generations.
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.