Substrate evaluation for multiplication of <i>Trichoderma</i> spp.
Keywords:
Biocontrol, Organic substrates, Shelf life, Substrate moisture levels.Abstract
Cow dung, neem cake, coir pith, sorghum grains, saw dust, and rice bran, either alone or in certain combinations, with or without additives such as jaggery and wheat flour, and having differential moisture levels were evaluated as substrates for mass production of Trichoderma harzianum and T. viride. Pre-boiled sorghum grains, coir pith + neem cake (1:1), cow dung + neem cake (1:1) + wheat flour (10%) maintained high populations of T. harzianum and T. viride within 10 days of inoculation. Jaggery and wheat flour served as nutritional supplements and enhanced the conidial yield from 23.66 x 108 to 34 x 108 and 45.6 x 108 colony forming units g–1 respectively. An increase in the number of viable propagules up to 30 days was noted regardless of the substrates and its moisture levels. Although highest initial population of Trichoderma spp. was observed in sorghum grains, propagule viability was low in that compared to other substrates. Coir pith + neem cake (1:1) at 35% and 45% moisture gave longer shelf life for Trichoderma propagules.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.