Studies on genetic variability, association and path coefficient analysis in F2 derivatives of CR 1009 × WP 22-2 for earliness and semi-dwarfism in rice (Oryza Sativa L.)
The present investigation was conducted in the F2 population of CR 1009 × WP 22-2 for earliness and semi-dwarfism. The yield contributing traits viz., plant height, days to fifty per cent flowering, number of productive tillers, panicle length, number of grains per panicle, thousand grain weight, grain length, grain breadth, length breadth ratio were interpreted based on their exposition of genetic variability, heritability and genetic advance besides correlation and path coefficient analysis. Negligible values of difference between PCV and GCV were recorded for plant height, number of grains per panicle, grain length and grain breadth suggesting lower environmental influence on the expression of these traits. The results of correlation and path analysis indicated that the number of productive tillers shows significantly positive and highest correlation with single plant yield pursuing selection of this trait is rewarding for grain 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.