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Allelopathic effect of black mustard tissues and root exudates on some crops and weeds
Provedor de dados: Planta Daninha
Autores: Al-Sherif,E; Hegazy,A.K.; Gomaa,N.H.; Hassan,M.O.
Laboratory and greenhouse experiments were conducted to evaluate the phytotoxic effect of black mustard extracts and root exudates on two crops: Trifolium alexandrinum and Triticum aestivum, and two weeds: Phalaris paradoxa and Sisymbrium irio. The seeds were treated with aqueous and ethanolic extracts and chloroform for eight days, or subjected to root exudates of just harvested mustard in a greenhouse for five weeks. High-performance liquid chromatography (HPLC) was used to quantify phytotoxins from plant tissues. Seed germination of P. paradoxa was reduced with the lowest concentration of the different extracts. However, the aqueous extract at 4% completely curtailed the germination of all the target species. In general, plant extracts had a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Brassica nigra; Plant extracts; Isothiocyanates (ITCs); Phenolic acids.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000100002