Data/hora: 03/06/2024 01:20:26

Provedor de dados: 	1	
País: 	Brazil	
Título: 	Phytotoxic potential of Drimys brasiliensis Miers for use in weed control	
Autores: 	Anese, Simoni; Gualtieri, Sonia Cristina Juliano; Grisi, Patrícia Umeda; Jatobá, Luciana de Jesus; Arduin, Marcos.	
Data: 	2015-10-01	
Ano: 	2015	
Palavras-chave: 	Agronomia - Fisiologia vegetal allelopathy; Inhibition; Germination; Early growth. Controle de plantas daninhas.	
Resumo: 	This study aims to evaluate the phytotoxicity potential of leaf and root extracts of Drimys brasiliensis on the germination and seedling growth of Panicum maximum and Euphorbia heterophylla and its influence on metaxylem cell size in the seedling roots of the latter specie. The leaf and root extracts were fractionated by partition chromatography, and the hexane and ethyl acetate fractions obtained from each organ were evaluated at different concentrations for phytotoxic activity in several bioassays. In seedling growth tests, we compared the effects of these fractions with the herbicide oxyfluorfen. The hexane fraction of the root extracts showed a higher inhibitory potential on the germination and growth of weeds and reduced the average size of the metaxylem cells of E. heterophylla roots by more than 50%.The inhibitory effects of the root hexane fraction on seedling growth was similar to the herbicide, indicating that D. brasiliensis is a possible alternative form of control for the weed species examined. 	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19476

10.4025/actasciagron.v37i4.19476	
Editor: 	Universidade Estadual de Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19476/pdf_104	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Agronomy; v. 37, n. 4 (2015); 505-516

Acta Scientiarum. Agronomy; v. 37, n. 4 (2015); 505-516

1807-8621

1679-9275