Efeito da intensidade luminosa instantânea após supressão do magnésio no cultivo do tomate e pimentão

Visualizações: 192

Autores

DOI:

https://doi.org/10.32404/rean.v11i1.8330

Palavras-chave:

Solanum lycopersicum L., Capsicum annuum L, Nutrição vegetal, Trocas gasosas, Fotossíntese

Resumo

As plantas apresentam respostas instantâneas quando expostas as diferentes intensidades de luz, e podendo mostrar respostas diferentes quando cultivadas com a restrição de magnésio nos parâmetros de trocas gasosas. O objetivo deste trabalho foi avaliar o efeito da intensidade luminosa instantânea após supressão do magnésio no cultivo do tomate e pimentão. Foram realizados dois experimentos independentes com as culturas do tomate variedade Mariana (Sakata®) e pimentão variedade Magali R (Sakata®) em Setembro de 2022, na Faculdade de Ciências Agrárias e Tecnológicas, localizada no município de Dracena estado de São Paulo. O delineamento experimental foi inteiramente casualizado (DIC) em esquema fatorial duplo 2x5 onde o primeiro fator foi composto com a presença e ausência de Magnésio em solução nutritiva, interagindo com quatro intensidades luminosas, sendo elas: zero (controle); 600; 1200 e 1800 μmol m-2s-1 de radiação fotossinteticamente ativa (PAR), fornecida de maneira instantânea com o uso do aparelho IRGA. O magnésio é um fator limitante nas respostas de trocas gasosas nas culturas do tomateiro e pimentão. A intensidade luminosa de 1200 µmol m-2 s-1 de radiação fotossinteticamente ativa (PAR) apresentou melhor resposta nas trocas gasosas nas culturas do tomateiro e pimentão.

Biografia do Autor

Lucas Aparecido Manzani Lisboa, São Paulo State University

São Paulo State University, College of Agricultural and Technological Sciences, Dracena, São Paulo, Brazil.

Paulo Alexandre Monteiro de Figueiredo, São Paulo State University

São Paulo State University, College of Agricultural and Technological Sciences, Dracena, São Paulo, Brazil.

José Carlos Cavichioli, Adamantina University Center

Adamantina University Center, Adamantina, São Paulo, Brazil.

Fernando Shintate Galindo, São Paulo State University

São Paulo State University, College of Agricultural and Technological Sciences, Dracena, São Paulo, Brazil.

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Publicado

2024-02-20

Como Citar

Lisboa, L. A. M., Figueiredo, P. A. M. de, Cavichioli, J. C., & Galindo, F. S. (2024). Efeito da intensidade luminosa instantânea após supressão do magnésio no cultivo do tomate e pimentão. Revista De Agricultura Neotropical, 11(1), e8330. https://doi.org/10.32404/rean.v11i1.8330

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