Genotype x Environment interaction for seed cotton yield and component traits in upland cotton (Gossypium hirsutum L.)
The present investigation was carried out to assess the stability of three lines, twelve testers, thirty six hybrids and one check (PKV Hy 2) over three locations in Maharashtra viz., Akola, Amravati and Nagpur using Eberhart and Russell Model. Pooled analysis of variance over the environments revealed that the genotypes, environments and genotypes x environments interaction were highly significant for all the characters indicating a considerable extent of interaction between the genotypes and environments. Environmental indices revealed that Nagpur was the most favourable location in an expression of most of the yield component traits. Eight hybrids viz., AKH 84635 x AKH 11-7, AKH 84635 x AKH 9916, AKH 8828 x AKH 2012-8, AKH 8828 x AKH 2006-2, AKH 8828 x SURAJ, AKH 081 x AKH 10-2, AKH 081 x DHY 286, AKH 081 x AKH 10-5 and two parents viz., AKH 081 and AKH 2012-8 found to be stable for seed cotton yield and most of the other traits over the location.
Key words: Stability, regression coefficient, environmental indices, genotype x environment interaction
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.