Character association and path coefficient analysis for yield and its component traits in slender grain rice (Oryza sativa L.)
An investigation was carried out at Rice Research Station, O.U.A.T., Bhubaneswar evaluating thirty-two genotypes with an objective to determine the degree of association between yield and it`s component characters and their direct, indirect effects on grain yield in slender grain rice. The results from the correlation studies showed that grain yield had the highest estimates of positive correlation both at genotypic and phenotypic level with the number of effective tillers/plant (rp=0.853, rg=0.997) followed by the number of filled grains/panicle (rp =0.816, rg =0.835). Path analysis studies reported that high direct contribution to yield was manifested by the number of filled grains per panicle (0.538) followed by the number of effective tillers/plant (0.513). The number of effective tillers/plant also exhibited the highest indirect effect on grain yield via the number of filled grains per panicle (0.275). This indicated that the simultaneous selection of these characters would be fruitful for yield improvement in slender grain rice.
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.