Combining ability through diallel analysis in okra (Abelmoschus esculentus (L.) moench)

  • Atanu K. Pal and T. Sabesan
Keywords: Combining ability, gene action, diallel, fruit yield, okra

Abstract

Combining ability analysis was carried out for fruit yield and its components in okra in a 12 x 12 diallel cross (excluding
reciprocals). Both general a combining ability (GCA) and specific combining ability (SCA) variances were highly
significant for all the characters indicating the importance of both additive and non additive gene actions. However,
preponderance of additive gene action was recorded for the traits viz., primary branches per plant, ridges/fruit and fruit
diameter, preponderance of non additive gene action was recorded for plant height, nodes on main stem, days to first
flowering, number of fruits per plant, fruit length, fruit weight and fruit yield per plant. The parents Sat-dhari, Ratna - 78,
VRO 5 and Varsha Uphar were found to be the best general combiners and close correspondence between per se
performance of parents and their gca effects were observed. The cross combinations viz., Sat-dhari x Ratna–78, VRO 5 x
Sagun, Ratna-78 x Punjab 8, Ankur–40 x Pankaj Dwarf, Sat-dhari x Varsha Uphar, Arka Anamika x Punjab-5 showed
significant sca effects in desirable direction for fruit yield per plant and associated characters and were expected to produce
transgressive segregants. Exploitation of hybrid vigour from these crosses through heterosis breeding method is advocated.
How to Cite
Atanu K. Pal and T. Sabesan
Combining ability through diallel analysis in okra Abelmoschus esculentus L. moench. 1. Electronic Journal of Plant Breeding, 1 1, 84-88. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/1851
Issue
Vol 1 No 1 (2009)
Section
Research Note

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.