Foliar application of salicylic acid intensifies antioxidant system and photosynthetic efficiency in tomato plants

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorAires, Eduardo Santana [UNESP]-
Autor(es): dc.creatorFerraz, Andrew Kim Lopes [UNESP]-
Autor(es): dc.creatorCarvalho, Beatriz Lívero [UNESP]-
Autor(es): dc.creatorTeixeira, Fabrício Palla [UNESP]-
Autor(es): dc.creatorRodrigues, João Domingos [UNESP]-
Autor(es): dc.creatorOno, Elizabeth Orika [UNESP]-
Data de aceite: dc.date.accessioned2022-08-04T21:57:31Z-
Data de disponibilização: dc.date.available2022-08-04T21:57:31Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-03-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/1678-4499.20210320-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/218216-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/218216-
Descrição: dc.descriptionTomatoes are the most important and grown vegetable crop in the world. The salicylic acid (SA) application could improve crop yields due the positive physiological effects of this plant growth regulator. Thus, this study aimed to evaluate the possible effects of SA application on leaf regarding the intensification of antioxidant enzymes activities, chlorophyll a fluorescence, gas exchange, and tomato production against environmental stress. This experiment was conducted by the use of Colossal tomato hybrid in a protected environment between July and December 2019. Therefore, a randomized block design with five SA doses was used, as follows: 0; 0.5; 1; 1.5, and 2 mM. Then, applications were performed weekly from 15 to 60 days after transplantation (DAT). At the 45th and the 60th DAT, the enzymes activities were analysed, such as superoxide dismutase (SOD), catalase activity (CAT) and peroxidase (POD), lipid peroxidation, proline content, chlorophyll a fluorescence, gas exchange, and plant height. At the end of the experiment, fruit weight, total and commercial production were also evaluated. Results indicated that foliar application of SA reduced the environmental stress in plants through the intensification of antioxidant system that reduced lipid peroxidation and qNP and increased the efficiency of photosystem II and ETR. Furthermore, gas exchange was also influenced by the action of SA in gs, favouring A and A/Ci. The SA dose between 0.5 and 0.8 mM positively enabled the total and commercial production of tomatoes. Therefore, foliar application of SA reduced oxidative damage, and increased photosynthetic efficiency and fruit production.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Agronômicas-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Agronômicas-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”-
Descrição: dc.descriptionCAPES: 001-
Formato: dc.format--
Idioma: dc.languageen-
Publicador: dc.publisherInstituto Agronômico de Campinas-
Relação: dc.relationBragantia-
Direitos: dc.rightsAcesso aberto-
???dc.source???: dc.sourceSciELO-
Palavras-chave: dc.subjectphotosynthesis-
Palavras-chave: dc.subjectproduction-
Palavras-chave: dc.subjectplant growth regulator-
Palavras-chave: dc.subjectSolanum lycopersicum-
Título: dc.titleFoliar application of salicylic acid intensifies antioxidant system and photosynthetic efficiency in tomato plants-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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