Genetic diversity analysis in selected germplasm lines of safflower (Carthamus tinctorius L.)
AbstractIn the present study, a total of 155 genotypes along with five checks 'A-1, PBNS-12, AKS-207, PKV Pink, Bhima' were assessed to study the genetic diversity among the genotypes. These genotypes were grouped into eleven clusters based on the measurements of genetic divergence obtained by means of Mahalanobis distance (D2) and in the grouping by Tocher optimization method. The average inter cluster distance was maximum between clusters VI and IX (7037.21) followed by clusters III and IX (6895.24), clusters IX and XI (6756.33), clusters IX and X (5760.02), clusters VII and IX (5724.53) which indicated that the genotypes included in these clusters may give high heterotic responses and thus better segregants. The present study projected the importance of GMU-4502, GMU-4934, GMU-4507 as parents for higher heterosis in F1 and potential transgressive segregants in subsequent generations as they have least mean values for days to 50% flowering, days to maturity whereas high mean values of GMU-4839, GMU-4934, GMU-40, GMU-5032, GMU-2969, GMU-5663 and GMU-3740 for characters viz. plant height, number of primary branch per plant, number of capitula per plant, volume weight, 100- seed weight, seed yield per plant and oil content respectively suggest their further improvement in respect to these yield attributing characters.
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.