Biological control of Rhizoctonia solani by Trichoderma spp. and by fluorescent Pseudomonas spp in tomato (Lycopersicon esculentum L.)
Autor(a) principal: | |
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Data de Publicação: | 1993 |
Outros Autores: | |
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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UEL-11 |
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Semina. Ciências Agrárias (Online) |
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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 |
_version_ |
1799306060383649792 |