Identification of bread wheat lines with superior combining ability for yield contributing traits and yellow rust resistance suitable for NWPZ of India
Abstract
Combining ability analysis and gene action were studied for yield contributing traits and yellow rust resistance, using AUDPC as a genetic basis of stripe rust resistance, among 15 parents (12 lines, 3 testers) along with their 36 F1s using Line x tester analysis. The purpose of the study was to identify and select superior high yielding rust resistant parents and best hybrid combinations on the basis of estimates of general and specific combining abilities. The significant differences among parents suggest that the breeding lines possess good amount of genetic variability for traits studied 11 traits showed predominance of non-additive gene action except for plant height, peduncle length, flag leaf area and AUDPC where additive gene actions were present. DPW 621-50 can be ranked as the best tester and UP2596, PBW 639 and PBW 658 can be considered as the best lines as these combine well for the highest number of yield contributing characters as well as yellow rust resistance. The cross WH1100 x PBW550 was found as good cross combination for maximum number of traits.
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.
