Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.

Detalhes bibliográficos
Autor(a) principal: Camili, Elisangela Clarete [UNESP]
Data de Publicação: 2007
Outros Autores: Benato, Eliane Aparecida, Pascholati, Sérgio Florentino, Cia, Patrícia
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/229308
Resumo: Significant losses of table grapes are seem during storage and marketing due mainly to the occurrence of gray mold (Botrytis cinerea Pers.:Fr.), whick has been frequently controlled by using sulfur dioxide (SO2 ). Due to increase in restrictions on the postharvest use of chemical products, considerable interest in alternative control measures has arise. The main objective of this study was to evaluate the effects of chitosan in ‘Itália’ grapes, aimed at post-harvest protection against B. cinerea. The direct and indirect effects of chitosan were evaluated in vivo by treating bunches of grapes before and after inoculation with the pathogen. Chitosan was used in the concentrations of 0.00; 0.25; 0.50; 1.00; 1.50 and 2.00 % (v/v). For inoculation, 10 grapes in each bunch were injured by piercing the grape to a depth of ±2 mm, followed spraying with B. cinerea conidia (± 105 conidia.mL-1). After the treatments, the bunches were kept at 25±1°C/80-90% RH. Disease incidence and severity evaluations were carried out daily. In vitro evaluations regarding the effect of the product were also carried out based upon mycelial growth and germination of B. cinerea conidia. When applied after inoculation with B. cinerea, 1.5 and 2.0 % (v/v) solutions of chitosan significantly reduced the occurrence of the disease, although when applied before inoculation there was no significant effect on the development of the disease. The higher concentrations of chitosan suppressed mycelial growth of the pathogen and delayed conidium germination.
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spelling Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.Avaliação de quitosana, aplicada em pós-colheita, na proteção de uva ‘itália’ contra botrytis cinereaControlGray moldInduced resistanceVitis vinifera LSignificant losses of table grapes are seem during storage and marketing due mainly to the occurrence of gray mold (Botrytis cinerea Pers.:Fr.), whick has been frequently controlled by using sulfur dioxide (SO2 ). Due to increase in restrictions on the postharvest use of chemical products, considerable interest in alternative control measures has arise. The main objective of this study was to evaluate the effects of chitosan in ‘Itália’ grapes, aimed at post-harvest protection against B. cinerea. The direct and indirect effects of chitosan were evaluated in vivo by treating bunches of grapes before and after inoculation with the pathogen. Chitosan was used in the concentrations of 0.00; 0.25; 0.50; 1.00; 1.50 and 2.00 % (v/v). For inoculation, 10 grapes in each bunch were injured by piercing the grape to a depth of ±2 mm, followed spraying with B. cinerea conidia (± 105 conidia.mL-1). After the treatments, the bunches were kept at 25±1°C/80-90% RH. Disease incidence and severity evaluations were carried out daily. In vitro evaluations regarding the effect of the product were also carried out based upon mycelial growth and germination of B. cinerea conidia. When applied after inoculation with B. cinerea, 1.5 and 2.0 % (v/v) solutions of chitosan significantly reduced the occurrence of the disease, although when applied before inoculation there was no significant effect on the development of the disease. The higher concentrations of chitosan suppressed mycelial growth of the pathogen and delayed conidium germination.Doutoranda do Departamento de Produção Vegetal Horticultura Faculdade de Ciências Agronômicas UNESP, CP 237Instituto de Tecnologia de Alimentos FruthotecGEPC, CP 139Departamento de Entomologia Fitopatologia e Zoologia Agrícola ESALQ USP, CP 09Centro de Engenharia e Automação do Instituto Agronômico, Rod. Gabriel Paulino Bueno Couto, km 65, C.P. 26Doutoranda do Departamento de Produção Vegetal Horticultura Faculdade de Ciências Agronômicas UNESP, CP 237Universidade Estadual Paulista (UNESP)FruthotecGEPCUniversidade de São Paulo (USP)do Instituto AgronômicoCamili, Elisangela Clarete [UNESP]Benato, Eliane AparecidaPascholati, Sérgio FlorentinoCia, Patrícia2022-04-29T08:31:50Z2022-04-29T08:31:50Z2007-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article215-221Summa Phytopathologica, v. 33, n. 3, p. 215-221, 2007.0100-5405http://hdl.handle.net/11449/2293082-s2.0-85112378419Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporSumma Phytopathologicainfo:eu-repo/semantics/openAccess2024-04-30T14:33:02Zoai:repositorio.unesp.br:11449/229308Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:31:45.980729Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.
Avaliação de quitosana, aplicada em pós-colheita, na proteção de uva ‘itália’ contra botrytis cinerea
title Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.
spellingShingle Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.
Camili, Elisangela Clarete [UNESP]
Control
Gray mold
Induced resistance
Vitis vinifera L
title_short Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.
title_full Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.
title_fullStr Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.
title_full_unstemmed Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.
title_sort Evaluation of chitosan on postharvest protection of ‘itália’ grapes against botrytis cinerea.
author Camili, Elisangela Clarete [UNESP]
author_facet Camili, Elisangela Clarete [UNESP]
Benato, Eliane Aparecida
Pascholati, Sérgio Florentino
Cia, Patrícia
author_role author
author2 Benato, Eliane Aparecida
Pascholati, Sérgio Florentino
Cia, Patrícia
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
FruthotecGEPC
Universidade de São Paulo (USP)
do Instituto Agronômico
dc.contributor.author.fl_str_mv Camili, Elisangela Clarete [UNESP]
Benato, Eliane Aparecida
Pascholati, Sérgio Florentino
Cia, Patrícia
dc.subject.por.fl_str_mv Control
Gray mold
Induced resistance
Vitis vinifera L
topic Control
Gray mold
Induced resistance
Vitis vinifera L
description Significant losses of table grapes are seem during storage and marketing due mainly to the occurrence of gray mold (Botrytis cinerea Pers.:Fr.), whick has been frequently controlled by using sulfur dioxide (SO2 ). Due to increase in restrictions on the postharvest use of chemical products, considerable interest in alternative control measures has arise. The main objective of this study was to evaluate the effects of chitosan in ‘Itália’ grapes, aimed at post-harvest protection against B. cinerea. The direct and indirect effects of chitosan were evaluated in vivo by treating bunches of grapes before and after inoculation with the pathogen. Chitosan was used in the concentrations of 0.00; 0.25; 0.50; 1.00; 1.50 and 2.00 % (v/v). For inoculation, 10 grapes in each bunch were injured by piercing the grape to a depth of ±2 mm, followed spraying with B. cinerea conidia (± 105 conidia.mL-1). After the treatments, the bunches were kept at 25±1°C/80-90% RH. Disease incidence and severity evaluations were carried out daily. In vitro evaluations regarding the effect of the product were also carried out based upon mycelial growth and germination of B. cinerea conidia. When applied after inoculation with B. cinerea, 1.5 and 2.0 % (v/v) solutions of chitosan significantly reduced the occurrence of the disease, although when applied before inoculation there was no significant effect on the development of the disease. The higher concentrations of chitosan suppressed mycelial growth of the pathogen and delayed conidium germination.
publishDate 2007
dc.date.none.fl_str_mv 2007-01-01
2022-04-29T08:31:50Z
2022-04-29T08:31:50Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Summa Phytopathologica, v. 33, n. 3, p. 215-221, 2007.
0100-5405
http://hdl.handle.net/11449/229308
2-s2.0-85112378419
identifier_str_mv Summa Phytopathologica, v. 33, n. 3, p. 215-221, 2007.
0100-5405
2-s2.0-85112378419
url http://hdl.handle.net/11449/229308
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Summa Phytopathologica
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 215-221
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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