Activity of Phosphites and Chitosan on Biochemical Responses and Target Spot Control in Cucumber Plants

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorAgency Paulista Agribusiness Technology — Regional Unit for Research and Development of Bauru-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorIntegrated Colleges of Bauru-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorFischer, Ivan Herman-
Autor(es): dc.creatorMorales, João Vitor Pelizzaro-
Autor(es): dc.creatorda Silva, Lucas Meleiro-
Autor(es): dc.creatorde Almeida Bertani, Rosemary Marques-
Autor(es): dc.creatorDeus, Angélica Cristina Fernandes-
Autor(es): dc.creatorPascholati, Sérgio Florentino-
Data de aceite: dc.date.accessioned2025-08-21T18:36:26Z-
Data de disponibilização: dc.date.available2025-08-21T18:36:26Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10343-022-00761-9-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246160-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246160-
Descrição: dc.descriptionTarget spot, a disease caused by Corynespora cassiicola, is a frequent disease in the cucumber crop but still without an effective control. The objective was to evaluate the effect of phosphites and chitosan on the in vitro control of C. cassiicola and target spot in a greenhouse by characterizing the biochemical responses of treated plants inoculated with such a pathogen. Three weekly sprayings with phosphites (1 mL L−1) and chitosan (1 g L−1) were carried out, and the pathogen was inoculated in two true leaves after four days of the last spraying. Manganese, zinc, magnesium, potassium and copper phosphites inhibited C. cassiicola mycelial growth (> 80%) and germination (> 11%). Zinc phosphite was most efficient in controlling the disease, reducing the severity by 79%, and was followed by manganese, copper and potassium phosphites. Zinc and manganese phosphites reduced the number of lesions on the leaves. Except for magnesium phosphite, the applied products reduced the diameter of lesions after ten days of the pathogen inoculation. The products did not affect pathogen sporulation on the leaves. The enzyme peroxidase was induced by copper phosphite; polyphenol oxidase increased with zinc, manganese, copper and magnesium phosphites, and the levels of free phenolic compounds were higher with copper phosphite. Considering the present results for target spot control, copper, zinc and manganese phosphites can be associated with antifungal activity and plant resistance induction, while for potassium phosphite, antifungal activity was apparently more important to control the disease.-
Descrição: dc.descriptionAgency Paulista Agribusiness Technology — Regional Unit for Research and Development of Bauru, SP-
Descrição: dc.descriptionUniversity of São Paulo/ESALQ, SP-
Descrição: dc.descriptionIntegrated Colleges of Bauru, SP-
Descrição: dc.descriptionSchool of Agricultural Sciences Department of Crop Production São Paulo State University (UNESP), SP-
Descrição: dc.descriptionSchool of Agricultural Sciences Department of Crop Production São Paulo State University (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationGesunde Pflanzen-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAlternative control-
Palavras-chave: dc.subjectCorynespora cassiicola-
Palavras-chave: dc.subjectCucumis sativus-
Palavras-chave: dc.subjectResistance induction-
Título: dc.titleActivity of Phosphites and Chitosan on Biochemical Responses and Target Spot Control in Cucumber Plants-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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