RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES

Detalhes bibliográficos
Autor(a) principal: Silva, Julio César Medeiros da
Data de Publicação: 2003
Outros Autores: Coelho, Lísias
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/1739
Resumo: The occurrence of fungicide resistant isolates of Botrytis cinerea Persoon ex Fries causal agent of Eucalypt seedling damping off, was evaluated in laboratory tests conducted at the Universidade Federal de Santa Maria (UFSM).  To evaluate the fungicide effects on the mycelium growth and conidium germination, three active ingredients were tested: benomyl, procimidone and thiabendazole.  The treatments consisted of four dosages for each fungicide: zero (control), one half of the recommended dosage, full dosage and twice the dosage.  The evaluations were done every 24 hours during 7 days for the mycelium growth, and at 24 and 48 hours for spore germination. To determine the occurrence of resistance two isolates were compared, one from a commercial nursery in Rio Grande do Sul (IB-1), and the other (wild) (IB-2) from the Vegetable Crops Department, UFSM, Santa Maria, RS. The isolate IB-1 grew on all concentrations of benomyl, while the wild isolate was inhibited at all concentrations, indicating that the first isolate was resistant to benomyl.
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spelling RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIESResistência a fungicidas de Botrytis cinerea Persoon ex Fries, fungo causador de tombamento em mudas de Eucalyptus sp. em viveiros florestais.resistancemycelium growthgerminationconidia.resistênciacrescimento micelialgerminaçãoconídiosThe occurrence of fungicide resistant isolates of Botrytis cinerea Persoon ex Fries causal agent of Eucalypt seedling damping off, was evaluated in laboratory tests conducted at the Universidade Federal de Santa Maria (UFSM).  To evaluate the fungicide effects on the mycelium growth and conidium germination, three active ingredients were tested: benomyl, procimidone and thiabendazole.  The treatments consisted of four dosages for each fungicide: zero (control), one half of the recommended dosage, full dosage and twice the dosage.  The evaluations were done every 24 hours during 7 days for the mycelium growth, and at 24 and 48 hours for spore germination. To determine the occurrence of resistance two isolates were compared, one from a commercial nursery in Rio Grande do Sul (IB-1), and the other (wild) (IB-2) from the Vegetable Crops Department, UFSM, Santa Maria, RS. The isolate IB-1 grew on all concentrations of benomyl, while the wild isolate was inhibited at all concentrations, indicating that the first isolate was resistant to benomyl.A ocorrência de isolados de Botrytis cinerea Persoon ex Fries, agente causal do tombamento em mudas de Eucalyptus spp., resistentes aos fungicidas sistêmicos benomil, procimidone e thiabendazole, foi avaliada verificando-se o efeito de doses crescentes dos fungicidas sobre o desenvolvimento micelial e a germinação de conídios do referido fitopatógeno. Os experimentos foram conduzidos em laboratório da Universidade Federal de Santa Maria (UFSM). Os tratamentos foram constituídos de quatro dosagens de cada fungicida (dose zero, meia dose, dose inteira e dose dupla). As análises foram realizadas sobre os valores de crescimento micelial obtidos no quinto dia, quando a testemunha atingiu o máximo crescimento, e 24 e 48 horas, para a verificação da percentagem de germinação de conídios. Para avaliação da resistência, compararam-se os resultados obtidos em dois isolados de B. cinerea, um proveniente de um viveiro comercial no Rio Grande do Sul (IB-1) e outro isolado (IB-2), obtido junto ao Departamento de Fitotecnia da UFSM. Os resultados mostraram que o isolado IB-1 cresceu e germinou sob todas as concentrações de benomil, enquanto o isolado IB-2 foi inibido em todas as concentrações, indicando que o primeiro isolado é resistente a benomil.Universidade Federal de Santa Maria2003-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/173910.5902/198050981739Ciência Florestal; Vol. 13 No. 2 (2003); 27-36Ciência Florestal; v. 13 n. 2 (2003); 27-361980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/1739/1008Silva, Julio César Medeiros daCoelho, Lísiasinfo:eu-repo/semantics/openAccess2017-05-18T11:42:57Zoai:ojs.pkp.sfu.ca:article/1739Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-05-18T11:42:57Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES
Resistência a fungicidas de Botrytis cinerea Persoon ex Fries, fungo causador de tombamento em mudas de Eucalyptus sp. em viveiros florestais.
title RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES
spellingShingle RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES
Silva, Julio César Medeiros da
resistance
mycelium growth
germination
conidia.
resistência
crescimento micelial
germinação
conídios
title_short RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES
title_full RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES
title_fullStr RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES
title_full_unstemmed RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES
title_sort RESISTANCE TO FUNGICIDES OF Botrytis cinerea Persoon ex Fries, CAUSAL AGENT OF EUCALYPT SEEDLING DAMPING OFF IN FOREST NURSERIES
author Silva, Julio César Medeiros da
author_facet Silva, Julio César Medeiros da
Coelho, Lísias
author_role author
author2 Coelho, Lísias
author2_role author
dc.contributor.author.fl_str_mv Silva, Julio César Medeiros da
Coelho, Lísias
dc.subject.por.fl_str_mv resistance
mycelium growth
germination
conidia.
resistência
crescimento micelial
germinação
conídios
topic resistance
mycelium growth
germination
conidia.
resistência
crescimento micelial
germinação
conídios
description The occurrence of fungicide resistant isolates of Botrytis cinerea Persoon ex Fries causal agent of Eucalypt seedling damping off, was evaluated in laboratory tests conducted at the Universidade Federal de Santa Maria (UFSM).  To evaluate the fungicide effects on the mycelium growth and conidium germination, three active ingredients were tested: benomyl, procimidone and thiabendazole.  The treatments consisted of four dosages for each fungicide: zero (control), one half of the recommended dosage, full dosage and twice the dosage.  The evaluations were done every 24 hours during 7 days for the mycelium growth, and at 24 and 48 hours for spore germination. To determine the occurrence of resistance two isolates were compared, one from a commercial nursery in Rio Grande do Sul (IB-1), and the other (wild) (IB-2) from the Vegetable Crops Department, UFSM, Santa Maria, RS. The isolate IB-1 grew on all concentrations of benomyl, while the wild isolate was inhibited at all concentrations, indicating that the first isolate was resistant to benomyl.
publishDate 2003
dc.date.none.fl_str_mv 2003-06-30
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://periodicos.ufsm.br/cienciaflorestal/article/view/1739
10.5902/198050981739
url https://periodicos.ufsm.br/cienciaflorestal/article/view/1739
identifier_str_mv 10.5902/198050981739
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/1739/1008
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 Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Florestal; Vol. 13 No. 2 (2003); 27-36
Ciência Florestal; v. 13 n. 2 (2003); 27-36
1980-5098
0103-9954
reponame:Ciência Florestal (Online)
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Florestal (Online)
collection Ciência Florestal (Online)
repository.name.fl_str_mv Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv ||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br
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