Genetic variability, inter-relationship and path analysis in onion
Keywords:
Genetic variability, interrelationship, onion, path coefficientAbstract
Genetic variability, interrelationship and path coefficients were studied in onion involving 12 varieties. Moderate to high estimates of heritability, GCV and genetic gain were recorded for neck thickness, weight of bulb and number of leaves/plant which could be improved by simple selection. The phenotypic and genotypic association of bulb yield was significantly positive with plant height, number of leaves/plant, diameter and weight of bulb but significantly negative with neck thickness. Path analysis showed that number of leaves/plant had high positive direct effect on yield. Other characters also exerted high positive indirect effect through this trait on yield suggesting to give emphasis on such trait independently or in combination with thin neck trait while imposing selection for amenability in bulb yield of onion.Downloads
Published
How to Cite
Issue
Section
License
Copyright © 2001-11 Kerala Agricultural University. Some rights reserved. This journal and the individual contributions contained in it are protected under copyright by the Kerala Agricultural University and the following terms and conditions apply to their use; Photocopying Single photocopies of single articles may be made for personal use as allowed by national copyright laws. Permission of the publisher and payment of a fee is required for all other photocopying including multiple or systematic copying, copying for advertising or promotional purposes, resale, and all forms of document delivery. Permission may be sought directly from the Editor, Journal of Tropical Agriculture, Department of Agronomy, College of Horticulture,, Kerala Agricultural University, KAU PO, Thrissur 680 656, Kerala, India. (Phone: +91-487-2438325; Fax +91-487-2371040; E-mail: editor.jta@kau.in. Derivative works Subscribers may reproduce tables of contents or prepare lists of articles including abstracts for internal circulation within their institution. Permission of the Publisher is required for resale or distribution outside the institution. Permission of the Publisher is required for all other derivative works, including compilations and translations. Notice No responsibility is assumed by the Publisher for any injury and/or damage to persons or property as a matter of products, liability, negligence, or otherwise, or from any use of any methods, products, instructions or ideas contained in the material herein.