Data/hora: 10/06/2024 15:21:05

Provedor de dados: | 87
País: | Brazil
Título: | Mefenpyr-diethyl action on fenoxaprop-p-ethyl detoxification in wheat varieties
Autores: | Cataneo,A.C.; Ferreira,L.C.; Mischan,M.M.; Velini,E.D.; Corniani,N.; Cerdeira,A.L.
Data: | 2013-06-01
Ano: | 2013
Palavras-chave: | Safener; Triticum aestivum; Selectivity; Glutathione S-transferase; Lipid content.
Resumo: | Safeners protect crops against herbicide injury. The aim of this study was to examine the differential susceptibility of five wheat (Triticum aestivum) varieties to the herbicide fenoxaprop-p-ethyl, as well as the performance of mefenpyr-diethyl on minimizing herbicide injury and on lipid contents. Varieties BRS 49, CD 104, CEP 24, IAPAR 78 and Rubi were sprayed with fenoxaprop-p-ethyl (69 g ha¹), fenoxaprop-p-ethyl + mefenpyr-diethyl (69 g + 18.75 g ha-1), or mefenpyr-diethyl (18.75 g ha-1). Plants were evaluated visually for injury at 7 and 14 days after treatment (DAT). Glutathione S-transferase (GST) activity was assayed in aerial parts at 7 DAT, and lipid content was measured at 14 DAT. Varieties CEP 24, IAPAR 78 and Rubi were more tolerant to fenoxaprop-p-ethyl than BRS 49, and CD 104 rapidly recovering from the slight phytotoxicity symptoms produced by the herbicide. Mefenpyr-diethyl prevented crop injury associated with the herbicide. GST activity did not correlate directly with fenoxaprop-p-ethyl detoxification. However, lipid content was related to the susceptibility of wheat to fenoxaprop-p-ethyl treatment.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000200016
Editor: | Sociedade Brasileira da Ciência das Plantas Daninhas
Relação: | 10.1590/S0100-83582013000200016
Formato: | text/html
Fonte: | Planta Daninha  v.31 n.2 2013
Fonte: | info:eu-repo/semantics/openAccess