Data/hora: 07/06/2024 01:29:26

Provedor de dados: 	87	
País: 	Brazil	
Título: 	Changes in Photosynthesis and Oxidative Stress in Wheat Plants Submmited to Herbicides Application	
Autores: 	AGOSTINETTO,D.; PERBONI,L.T.; LANGARO,A.C.; GOMES,J.; FRAGA,D.S.; FRANCO,J.J.	
Data: 	2016-03-01	
Ano: 	2016	
Palavras-chave: 	Triticum aestivum; Selectivity; ROS; Antioxidant enzymes.	
Resumo: 	The use of herbicides, even in tolerant crops, can cause stress evidenced by increase phytotoxicity affecting growth and development. The objectives of this study were to evaluate herbicides effect from different mechanisms of action in photosynthetic and oxidative stress parameters, as well visual phytotoxicity and wild radish control in wheat crop, cultivar Quartzo. Two trials were conducted where the first one evaluated the photosynthetic parameters on wheat plants in two seasons collection, following the application of herbicides bentazon, clodinafop, iodosulfuron, metribuzin, metsulfuron and 2,4-D; and the second one evaluated wild radish (Raphanus sativus) control, wheat phytotoxicity and yield due to bentazon, iodosulfuron, metribuzin, metsulfuron and 2,4-D herbicides application. Photosynthetic rate, stomatal conductance and transpiration were negatively affected by metribuzin, metsulfuron and 2,4-D herbicides at 24 and 120 HAS (hours after spraying) compared to control. Oxidative stress was similar or lower to control, when herbicide was applied and, in general, there was no difference between application times. Lipid peroxidation, catalase activity and phenols were higher in the first collection time. The application of herbicides iodosulfuron and 2,4-D reduces chlorophylls and carotenoids in wheat. Herbicides bentazon, iodosulfuron, metribuzin, metsulfuron and 2,4-D are selective to wheat, cultivar Quartzo and do not affect wheat yield. 2,4-D, metribuzin and iodosulfuron are more efficient for wild radish control.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100001	
Editor: 	Sociedade Brasileira da Ciência das Plantas Daninhas	
Relação: 	10.1590/S0100-83582016340100001	
Formato: 	text/html	
Fonte: 	Planta Daninha  v.34 n.1 2016	
Fonte: 	info:eu-repo/semantics/openAccess