Genetic Variability Studies for Yield and Yield Components in Rice (Oryza Sativa L.)
Keywords: Rice, Heritability, Genetic Advance, Variance.
AbstractTwenty five rice genotypes were evaluated in randomized block design with three replications to examine the nature and magnitude of variability, heritability and genetic advance. Analysis of variance revealed that differences among the genotypes were significant for all the characters studied. Further, the traits, number of tillers per plant, productive tillers per plant, number of grains per panicle and number of filled grains per panicle showed higher estimates of genotypic and phenotypic co-efficient of variation, while high estimates of heritability were recorded for all the characters under study. High heritability coupled with high genetic advance as per cent of mean was also recorded for number of tillers per plant, productive tillers per plant, number of grains per panicle and number of filled grains per panicle suggesting that these traits were more useful for targetted yield improvement programmes in 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.