Evaluation on genetic variability and trait association in naturally coloured cotton (Gossypium hirsutum L.)

DOI: 10.37992/2023.1403.095

  • R. P. Santhosh Jeyaraj,
  • P. Anantharaju,
  • A. Subramanian,
  • S. Somasundaram,
  • N. Chitra and,
  • N. Premalatha

Abstract

A study was carried out to understand the genetic variability and trait association in a set of 30 naturally coloured cotton hybrids along with their parents (five colour cotton and six white cotton parents). The Analysis of Variance revealed the significance of the mean square for most of the traits studied. The phenotypic coefficient of variation was more than that of the genotypic coefficient of variation for all the traits. High PCV and GCV were recorded for the traits number of monopodia and single plant yield. The heritability and genetic advance as percentage of mean (GAM) were high for the traits plant height, number of monopodia, number of bolls per plant, single boll weight, bundle strength, fibre fineness and single plant yield. The Number of sympodia, number of bolls per plant and boll weight were observed to have significant genotypic and phenotypic correlation with single plant yield, while upper half mean length was observed to have significant genotypic and phenotypic correlation with bundle strength and fibreelongation. Path analysis revealed that seed index and ginning out turn recorded very high direct effect with single plant yield.

Keywords: Colour cotton, GCV, PCV, heritability, correlation, path analysis

Published
03-10-2023
How to Cite
R. P. Santhosh Jeyaraj, P. Anantharaju, A. Subramanian, S. Somasundaram, N. Chitra and, N. Premalatha

Evaluation on genetic variability and trait association in naturally coloured cotton Gossypium hirsutum L.

. 2023. Electronic Journal of Plant Breeding, 14 3, 850-856. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/4849
Issue
Vol 14 No 3 (2023): EJPB
Section
Research Article

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.