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Phytotoxic potential of Drimys brasiliensis Miers for use in weed control Agronomy
Anese, Simoni; Gualtieri, Sonia Cristina Juliano; Grisi, Patrícia Umeda; Jatobá, Luciana de Jesus; Arduin, Marcos.
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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomia - Fisiologia vegetal allelopathy; Inhibition; Germination; Early growth. Controle de plantas daninhas.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19476
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