Genetic analysis of variability, heritability and genetic advance in F3 populations of sunflower (Helianthus annuus L.)
The field experiment was carried out by using 46 sunflower progenies of two cross combinations (COSF6B x CMS 335B and COSF7B x 343 B) of F3 generation at Department of Oilseeds, CPBG, TNAU, Coimbatore during kharif 2018 to study the genotypic coefficient of variation, phenotypic coefficient of variation, heritability and genetic advance. The analysis of variance imparted significant differences for all the characters. In the B (maintainer ) line development programme, the characters like head diameter, percent disease index (PDI), seed yield per plant, 100 seed weight, volume weight and oil yield in both the populations recorded high heritability associated with high genetic advance, whereas the traits; days to flowering and days to maturity showed low values of GAM in both the populations. The results indicated that the characters with high heritability and high or moderate genetic advance can be further improved with individual plant selection, whereas characters with high heritability and low genetic advance indicated little scope for further improvement through individual plant selection.
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.