Heterosis and Inbreeding Depression for economic traits in desi cotton
Keywords: Heterosis, Cross combination, Hybrids, Inbreeding depression and Desi cotton
AbstractSeven parents in five cross combinations were studied for heterosis in F1 and inbreeding depression in F2 populations for
number of bolls per plant, boll weight, halo length, ginning outturn and seed cotton yield per plant. In F1 hybrids, maximum
heterosis was observed for seed cotton yield per plant followed by bolls per plant. Majority of the F2 population displayed
inbreeding depression and it was high for seed cotton yield per plant followed by bolls per plant. Inbreeding depression was
higher in Blach-1 x DLSA-17 cross followed by the hybrid DD-8NLE x MDL 2582 and in remaining hybrids it was lower.
In F1 generation, heterosis over better parent ranged from 172.82 to 127.94 % for seed cotton yield per plant. The inbreeding
depression was lower when RDC 88 and 9749 was used as male parents in combination with MDL 2582 and MDL 2601 as
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.