Heterosis for yield and physiological traits in chickpea (Cicer arietinum L.)
Chickpea being a highly self pollinated crop, the scope for exploitation of hybrid vigour will depend on the direction and magnitude of heterosis, biological feasibility and the type of gene action involved. The present investigation was carried out to study heterosis for yield and physiological attributes in chickpea utilising 21F1s and seven parents from a 7 x 7 diallel set of crosses during rabi 2011-12 at Regional Agricultural Research Station, Nandyal - 518 502, A.P., India. Crosses NBeG-3 x Vihar, JG-11 x Vihar and ICCV 05106 x Vihar exhibited significant heterosis for days to first flowering and days to maturity in desirable negative direction. For yield and yield attributes viz., number of branches per plant, number of pods per plant JG-11 x ICCV 05106, JG-11 x KAK-2 and ICCV 05106 x Vihar recorded significantly higher per se performance and heterosis over mid parent and better parent. MNK-1 x KAK-2 recorded significantly higher mid parental heterosis and heterobeltosis for physiological attributes like shoot biomass per plant, harvest index and root length. Hence, these promising crosses could be utilized in future breeding programmes for improving earliness, seed yield and drought tolerance in chickpea.
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.