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Can 2,4-D promote the hormesis effect in upland rice?
Marsala, Leonardo; Oliveira Cunha, Matheus Luís; do Nascimento, Vagner; Pereira Prado, Evandro; da Silva Viana, Ronaldo; Ferrari, Samuel.
Afiliación
  • Marsala L; São Paulo State University (UNESP), Registro, Brazil.
  • Oliveira Cunha ML; College of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, Brazil.
  • do Nascimento V; Departament of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, Brazil.
  • Pereira Prado E; Departament of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, Brazil.
  • da Silva Viana R; Departament of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, Brazil.
  • Ferrari S; Departament of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, Brazil.
J Environ Sci Health B ; 57(8): 680-685, 2022.
Article en En | MEDLINE | ID: mdl-35876109
This study aimed to evaluate the influence of low doses of 2,4-D on the agronomic traits of upland rice applied at different stages of crop growth. The work was carried out in a randomized completly blocks, and consisted of the application of 5 low doses of the 2,4-D herbicide (0, 0.68, 1.36, 2.04, 3.40 and 5.44 g acid equivalent (e.a.) ha-1) in two stages of rice development (tillering and floral differentiation). Nitrogen contentes in leaves, SPAD index and yield are higher when low doses of 2,4-D is applied in the tillering stage. Application of 2,4-D at a dose of 2.04 g a.e ha-1 results in a 19% increase in the number of spikelet per panicle. On the other hand, there is no effect of the application of low doses of 2,4-D on height, number of stems, active tillering and weight of 100 seeds. Our results contribute to increase knowledge of the hormesis effect in plants in order to increase crop yield.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oryza Tipo de estudio: Clinical_trials Idioma: En Revista: J Environ Sci Health B Año: 2022 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oryza Tipo de estudio: Clinical_trials Idioma: En Revista: J Environ Sci Health B Año: 2022 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido