Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants

Detalhes bibliográficos
Autor(a) principal: Costa, João Nuno Gouveia
Data de Publicação: 2018
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/15879
Resumo: Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia - UL / Faculdade de Ciências - Universidade do Porto
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spelling Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectantsEsca disease complexbladpruning wound protectionfungicidetracheomycosisMestrado em Viticultura e Enologia - Instituto Superior de Agronomia - UL / Faculdade de Ciências - Universidade do PortoDuring the past decades, Grapevine (Vitis vinifera) Trunk Diseases (GTDs) have been under study due to their increase in incidence through all winegrowing regions worldwide. Among the most common GTDs, the esca disease complex is one of the most concerning, leading to important losses in longevity and yield. Pruning wounds are considered the main entry port for fungal spores which, if not protected, may allow the penetration of several wood pathogens, such as Phaeomoniella chlamydospora (Pch) and Phaeoacremonium minimum. In the present study, the first goal was to evaluate nine chemicals – cyprodinil + fludioxonil, copper oxychloride, copper oxychloride + summer oil, blad, fosetyl-Al, elemental silver, hydrogen peroxide, glutaraldehyde and a bituminous coating - in vitro against the growth of these fungi. The second goal was to evaluate four selected chemicals - cyprodinil + fludioxonil, copper oxychloride + summer oil, blad and a bituminous coating - as pruning wound protectants under field conditions against Pch in cv Cabernet Sauvignon. The pruning wounds were inoculated with Pch 1, 31 and 90 days after pruning. Three months after each inoculation the canes were collected and reisolations of the isolate were made. Our study found that most chemicals tested were effective in vitro, in reducing mycelial growth of both fungi. However, the results obtained under field conditions showed that one of the treatments significantly reduced the presence of Pch on the first inoculation, providing a partial protection to fresh wound. The remaining treatments were not effective as wound protectants. In summary, novel chemicals were tested that were capable to greatly inhibit in vitro the growth of esca-related pathogens and a chemical treatment was identified which was capable of reducing the incidence of Pch as wound protectant. This study improved the current knowledge in chemicals used against some esca-related fungi and in pruning wound protectionISAMexia, António Maria MarquesDel Frari, GiovanniRepositório da Universidade de LisboaCosta, João Nuno Gouveia2018-07-27T13:21:38Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/15879engCosta, J.N.G. - Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants. Lisboa: ISA, 2018, 84 p.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:45:45Zoai:www.repository.utl.pt:10400.5/15879Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:01:25.933339Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants
title Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants
spellingShingle Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants
Costa, João Nuno Gouveia
Esca disease complex
blad
pruning wound protection
fungicide
tracheomycosis
title_short Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants
title_full Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants
title_fullStr Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants
title_full_unstemmed Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants
title_sort Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants
author Costa, João Nuno Gouveia
author_facet Costa, João Nuno Gouveia
author_role author
dc.contributor.none.fl_str_mv Mexia, António Maria Marques
Del Frari, Giovanni
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Costa, João Nuno Gouveia
dc.subject.por.fl_str_mv Esca disease complex
blad
pruning wound protection
fungicide
tracheomycosis
topic Esca disease complex
blad
pruning wound protection
fungicide
tracheomycosis
description Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia - UL / Faculdade de Ciências - Universidade do Porto
publishDate 2018
dc.date.none.fl_str_mv 2018-07-27T13:21:38Z
2018
2018-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/15879
url http://hdl.handle.net/10400.5/15879
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Costa, J.N.G. - Evaluation of chemicals against esca-related pathogens, in vitro and as pruning wound protectants. Lisboa: ISA, 2018, 84 p.
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 ISA
publisher.none.fl_str_mv ISA
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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