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Phytotoxicity of the extracts of Lonchocarpus muehlbergianus Hassl. (Fabaceae) leaflets and galls on seed germination and early development of lettuce Acta Botanica
Oliveira,Denis Coelho de; Soares,Geraldo Luiz Gonçalves; Isaias,Rosy Mary dos Santos.
Galls induced by Euphalerus ostreoides (Hemiptera: Psyllidae) cause structural and chemical alterations on Lonchocarpus muehlbergianus leaflets. Healthy and galled leaflet tissues of this plant species are rich in secondary metabolites with potential allelopathic effects. This research compares the allelopathic effects of the aqueous extracts of L. muehlbergianus leaflets and galls on seeds and seedlings of Lactuta sativa, and evaluates the chemical impact produced by a gall-inducing insect on the other trophic levels associated with it. The extracts were obtained through static maceration in distilled water (5% p/v). The treatments consisted of aqueous crude extracts and those previously filtered in polyvinylpirrolidone (PVP). After seven days, seedling...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allelopathy; Euphalerus ostreoides; Gall; Herbivory; Lonchocarpus muehlbergianus.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062008000400020
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