EFFET DE L'INCORPORATION DANS LE SOL DE DIFFFRFNTS SUBSTRATS A BASE DE BAGASSE PRECOLONISEE OU NON PAR TRICHODERMA VIRIDE PERS. SUR L'INCIDENCE DE SCLEROTIUM ROLFSIISacc

Joseph A. Toribio and Daniel Kermarree

No 261480, 21st Annual Meeting, September 8-13, 1985, Port of Spain, Trinidad and Tobago from Caribbean Food Crops Society

Abstract: A study in pots was conducted to determine the efficacy, against Sclerotium rolfsii, of the amendment of an ultisol with different bagasse substrates colonized or not by Trichoderma virideisolates antagonistic to the pathogen. The bagasse substrates were: sterilized bagasse; non sterilized bagasse alone or with propionic acid, sodium propionate or the nematicide ethoprop, All substrates induced a progressive decrease of the population of germinating sclerotia and of the disease incidence on Lentil [Iens escuienta Moench) seedlings. Particular differences between the treatments are discussed in order to suggest pratical use. ----- Une étude en pots a été conduite dans le but de déterminer l'efficacité, contre le Sclerotium rolfsii, de l'incorporation dans un ultisol d'une bagasse pre-colonisée ou non par des isolats de Trichoderma viride antagonistes du parasite. Différents substrats-bagasse ont été utilisés : bagasse stérilisée ; bagasse non stérilisé, seule ou additionnée d'acide propionique, de propionate de sodium ou d'ethoprophos. Tous les substrats induisent um• ré'duction progressive des populations de sclérotes viables et de l'incidence de la maladie chez les plantules de Lentille (l,ens esculema Moench). Les différences particulieres entre les traitements sont discutees en vue d'une utilisation pratique.

Keywords: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies (search for similar items in EconPapers)
Pages: 8
Date: 1985-09-08
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Persistent link: https://EconPapers.repec.org/RePEc:ags:cfcs85:261480

DOI: 10.22004/ag.econ.261480

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