Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)

Detalhes bibliográficos
Autor(a) principal: Porfirio-Silva, Zenaldo
Data de Publicação: 1993
Outros Autores: Homechin, Martin
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4429
Resumo: The biological control of Rhizoctonia solani by the use of Trichoderma harzianum and Pseudomonas fluoresce™ was studied in laboratory and greenhouse conditions. Tomato seeds (Lycopersicon esculentum L., cv. AGROCICA 33), were inoculated by dipping them in an inoculum suspension of isolates of Pseudomonas spp. (1x108 ufc/mlj and Trichoderma spp. (2 x 106 spores/ml). These seeds were sown unsterilized soil previously (72 h) inoculated with an isolate of R. solani RS-25. The pathogen inoculum, R. solani RS-25 growth obtained in sunflower seeds was utilized. During 30 days from sowing, seedling emergence and development, dumping-off incidence and R. solani pathogenicity degree were evaluated. At 10 days, the emergence rate in the control treatment was of 58,44%, while the treatment with the antagonistic organisms increased seedling emergence, as well as decreased to the damping-off incidence in 12.15% to 68,81% as compared to the inoculated check.  
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spelling Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)Controle biológico de Rhizoctonia solani por Trichoderma spp. e Pseudomonas ssp fluorescente em tomateiro (Lycopersicon esculentum L.)Trichoderma spp.Pseudomonas spp.Rhizoctonia solaniLycopersicon esculentumseeds tratment and biological control.Trichoderma spp.Pseudomonas spp.Rhizoctonia solaniLycopersicon esculentumtratamento de sementes e controle biológico. The biological control of Rhizoctonia solani by the use of Trichoderma harzianum and Pseudomonas fluoresce™ was studied in laboratory and greenhouse conditions. Tomato seeds (Lycopersicon esculentum L., cv. AGROCICA 33), were inoculated by dipping them in an inoculum suspension of isolates of Pseudomonas spp. (1x108 ufc/mlj and Trichoderma spp. (2 x 106 spores/ml). These seeds were sown unsterilized soil previously (72 h) inoculated with an isolate of R. solani RS-25. The pathogen inoculum, R. solani RS-25 growth obtained in sunflower seeds was utilized. During 30 days from sowing, seedling emergence and development, dumping-off incidence and R. solani pathogenicity degree were evaluated. At 10 days, the emergence rate in the control treatment was of 58,44%, while the treatment with the antagonistic organisms increased seedling emergence, as well as decreased to the damping-off incidence in 12.15% to 68,81% as compared to the inoculated check.   Três isolados de Pseudomonas spp. fluorescentes e dois de Trichoderma spp. foram selecionados in vitro pelo seu potencial de biocontrole de Rhizoctonia solani. Semente de tomateiro Lycopersicon esculentum L., cv. AGROCICA 33, tratadas por imersão nas suspensões dessas bactérias (1 x lO8ufc/ml) e fungos (2 x 106 esporos/ml), quando semeadas em solo não esterilizado, previamente infestado com R. solani, mostraram aumento significativo na emergência e peso das plantas e diminuição significativa em damping-off. Entretanto nenhum agente biocontrolador foi superior ao tratamento químico em todos os parâmetros avaliados.    UEL1993-01-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/442910.5433/1679-0359.1993v14n1p19Semina: Ciências Agrárias; Vol. 14 No. 1 (1993); 19-27Semina: Ciências Agrárias; v. 14 n. 1 (1993); 19-271679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4429/4563Porfirio-Silva, ZenaldoHomechin, Martininfo:eu-repo/semantics/openAccess2010-02-14T14:16:37Zoai:ojs.pkp.sfu.ca:article/4429Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2010-02-14T14:16:37Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
Controle biológico de Rhizoctonia solani por Trichoderma spp. e Pseudomonas ssp fluorescente em tomateiro (Lycopersicon esculentum L.)
title Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
spellingShingle Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
Porfirio-Silva, Zenaldo
Trichoderma spp.
Pseudomonas spp.
Rhizoctonia solani
Lycopersicon esculentum
seeds tratment and biological control.
Trichoderma spp.
Pseudomonas spp.
Rhizoctonia solani
Lycopersicon esculentum
tratamento de sementes e controle biológico.
title_short Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
title_full Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
title_fullStr Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
title_full_unstemmed Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
title_sort Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
author Porfirio-Silva, Zenaldo
author_facet Porfirio-Silva, Zenaldo
Homechin, Martin
author_role author
author2 Homechin, Martin
author2_role author
dc.contributor.author.fl_str_mv Porfirio-Silva, Zenaldo
Homechin, Martin
dc.subject.por.fl_str_mv Trichoderma spp.
Pseudomonas spp.
Rhizoctonia solani
Lycopersicon esculentum
seeds tratment and biological control.
Trichoderma spp.
Pseudomonas spp.
Rhizoctonia solani
Lycopersicon esculentum
tratamento de sementes e controle biológico.
topic Trichoderma spp.
Pseudomonas spp.
Rhizoctonia solani
Lycopersicon esculentum
seeds tratment and biological control.
Trichoderma spp.
Pseudomonas spp.
Rhizoctonia solani
Lycopersicon esculentum
tratamento de sementes e controle biológico.
description The biological control of Rhizoctonia solani by the use of Trichoderma harzianum and Pseudomonas fluoresce™ was studied in laboratory and greenhouse conditions. Tomato seeds (Lycopersicon esculentum L., cv. AGROCICA 33), were inoculated by dipping them in an inoculum suspension of isolates of Pseudomonas spp. (1x108 ufc/mlj and Trichoderma spp. (2 x 106 spores/ml). These seeds were sown unsterilized soil previously (72 h) inoculated with an isolate of R. solani RS-25. The pathogen inoculum, R. solani RS-25 growth obtained in sunflower seeds was utilized. During 30 days from sowing, seedling emergence and development, dumping-off incidence and R. solani pathogenicity degree were evaluated. At 10 days, the emergence rate in the control treatment was of 58,44%, while the treatment with the antagonistic organisms increased seedling emergence, as well as decreased to the damping-off incidence in 12.15% to 68,81% as compared to the inoculated check.  
publishDate 1993
dc.date.none.fl_str_mv 1993-01-14
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4429
10.5433/1679-0359.1993v14n1p19
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4429
identifier_str_mv 10.5433/1679-0359.1993v14n1p19
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4429/4563
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 14 No. 1 (1993); 19-27
Semina: Ciências Agrárias; v. 14 n. 1 (1993); 19-27
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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