Combining ability and gene action studies for seed yield and its components in Sunflower (Helianthus annuus L.)
AbstractFive CMS lines and six restorers were crossed in a line x tester fashion to elucidate the information on the combining ability for seed yield, yield components and oil content and also to know the nature of gene action involved in inheritance of important quantitative traits. A total of 30 crosses were evaluated for 13 different quantitative traits. Line CMS E002-92-2 and CMS-104A exhibited significant gca effects for most of the characters studied and were found to be the best combiners. Likewise, tester EC-623015 was the best combiner for seed filling per cent, seed yield per plant, harvest index, volume weight, kernel per cent, hull per cent, KH ratio and oil content. The estimates of variance components revealed predominance of non-additive gene action for all characters studied.
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.