Character association and path analysis for cane yield and its components in interspecific hybrids of Saccharum spp.
Abstract
One hundred and thirty six interspecific hybrids of SSH, SRH and SBH derivation developed utilizing improved clones were assessed for variability and causal effects for cane yield and its related traits. Coefficient of variation was high (38.35 %) for number of millable canes (NMC) and brix (19.70 %) in S.spontaneum introgressed hybrid (SSH) and for single cane weight (SCW) (36.74 %) in S.barberi introgressed hybrid (SBH). High PCV and GCV were observed for NMC (38.29, 30.67) and sucrose % (34.13, 17.89) in SSH; and SCW (37.57, 34.80) in SBH. High heritability was observed for NMC (0.85) and cane height (0.92) in SSH and for SCW (0.86) and cane thickness (0.80) in SBH. Yield and quality traits had low to high genetic correlation (rg=0.1181 to 0.8428). SCW (rg=0.8428) and NMC (rg=0.7594) showed the highest positive significant correlation with cane yield. NMC and SCW had the highest direct and positive effect on cane yield and suggested as important selection criteria for sugarcane yield improvement.
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.
