Identification of best combiners for development of castor hybrids under irrigated conditions
Abstract
Sixty hybrids developed from 6 lines and 10 testers in a line x tester mating design were evaluated under irrigated and intensive cultivation at Regional Research Station, Anand Agriculture University, Anand, Gujarat. Analysis of variance for combining ability depicted considerable variation among the lines and testers and also lines x testers for seed yield and yield attributing characters. The ratio of GCA and SCA variance was low and close to unity for all the characters studied, indicating the predominance of the non-additive gene action for all the characters studied. DPC-21 was the best general combiner for seed yield, early maturity, effective primary spike length, hundred seed weight and oil content. Among 10 testers, PMC-55, PMC-9 and PMC-18 were good combiners for seed yield. Five of the crosses JP-77-1 x PMC-4, M-619 x PMC-11, JP-77-1 x PMC-19, SKP-84 x PMC-9 and DPC-21 x PMC-11 were found to be superior combinations for seed yield responding better to irrigated and high intensive cropping conditions.
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.
