Variability, correlation and path co-efficient studies in interspecific crosses (Avena sativa × A. sterilis) of oat

DOI: 10.37992/2022.1304.153

  • Bichewar Nagesh, A. K. Mehta,
  • Kadthala Bhargava and S. Ramakrishana

Abstract

Genetic variability, correlation and path coefficients for fifteen agro-morphological traits were studied on 100 oat lines including two checks. Genotypic and phenotypic coefficients of variation were high for leaf number per tiller and weight of panicle. Traits such as tiller number per plant, leaf number per tiller, weight of panicle, stem width, leaf width, individual plant yield, length of internode and thousand seed weight showed high heritability accompanied by high genetic advance indicating that these characters can be enhanced by simple selection. Association studies revealed a positively significant association of individual plant yield with thousand seed weight, floret number per panicle, spikelet number per panicle, weight of panicle, height of plant, length of internode at the phenotypic level. Path analysis disclosed that weight of panicle, width of flag leaf, floret number per panicle, tiller number per plant and length of flag leaf exhibited a positive direct effect on seed yield. Among these characters, weight of panicle, thousand seed weight, height of plant and floret number per panicle possessed positive association and direct effect. So, these traits can be used for creation of plant ideotypes and selecting these traits will be worthwhile for higher yield.

Keywords: Oat, correlation,  Path Coefficient, heritability, genetic advance and Ideotype

Published
11-01-2023
How to Cite
Bichewar Nagesh, A. K. Mehta, Kadthala Bhargava and S. Ramakrishana

Variability, correlation and path co-efficient studies in interspecific crosses Avena sativa × A. sterilis of oat

. 2023. Electronic Journal of Plant Breeding, 13 4, 1198-1206. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/4365
Issue
Vol 13 No 4 (2022): 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.