Assessment of the Phytotoxic Potential of Dregea volubilis (L.f.) Benth. ex Hook.f. and Identification of its Phytotoxic Substances for Weed Control

The phytotoxic potential of plants and the effect their active components on another plant species is being explored as a alternative to synthetic herbicides for weed control. In current study, we investigated leaves Dregea volubilis (L.f.) Benth. ex Hook.f. against four test [timothy (Phleum pratense L.), barnyard grass (Echinochloa crus-galli (L.) P. Beauv), lettuce (Lactuca sativa alfalfa (Medicago L.)] observed significant growth inhibition those at concentrations >3 mg D.W. equivalent extract mL?1. A bioassay-governed purification D. extracts using different chromatography phases produced two inhibitory compounds, 3-hydroxy-?-ionone (compound 1) 5-hydroxy-3,4-dimethyl-5-pentylfuran-2(5H)-one 2). compounds retarded cress (Lepidium sativum L.) with I50 (concentration required 50% suppression) values ranging from 0.098 0.450 mM 0.029 0.420 5-hydroxy-3,4-dimethyl-5-pentylfuran-2(5H)-one. Thus, identified may have possibility be utilized bioagents