Genetic variability and character association studies among seed yield and yield component traits in safflower (Carthamus tinctorius L.) genotypes
DOI: 10.37992/2023.1401.020
Abstract
A study was carried out to assess the genetic variability and association among yield attributing traits in 60 different safflower genotypes over six environments. The pooled analysis of variance (ANOVA) revealed that all attributes had a considerable degree of variation.The pooled analysis of variability parameters revealed that the phenotypic coefficients of variation (PCV) was higher than the genotypic coefficients of variation (GCV)for all of the characteristics evaluated, indicating that experimental variance contributed to total variation.Petal yield/plant and seed yield/plant had the highest PCV and GCV followed by number of capitula/plant, number of seeds/capitula, height of insertion of first branch, hundred seed weight, number of primary branches/plant, length of longest primary branches, number of secondary branches and height up to main capitula.Number of capitula/plant, seed yield/plant, petal yield/plant, height of insertion of first branch, number of seeds per capitula, hundred seed weight, number of primary branches/plant, length of the longest primary branches, number of secondary branches, height upto main capitula, capitulum diameter and plant height all had high heritability and genetic advance as percent of mean. Seedyield/plant showed positive, significant and directcorrelation with number of capitula/plant, number of seeds/capitulum, height up to the main capitulum, plant height, number of primary branches/plant, capitulum diameter, and hundred seed weight.Number of capitula/planthad the maximum direct effect on grain yield/plant followed by number of seeds/capitulum, hundred seed weight and petal yield/plant. Hence selection of these traits would improve seed and petal yield in safflower breeding program.
Keywords:Genetic variability, heritability, correlation, path analysis, pooled analysis and Safflower
Genetic variability and character association studies among seed yield and yield component traits in safflower Carthamus tinctorius L. genotypes
. 2023. Electronic Journal of Plant Breeding, 14 1, 217-225. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/4618It 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.
