Allelopathic Characteristic of a Noxious Weed Leptochloa chinensis

Leptochloa chinensis (L.) Nees, is known as a noxious weed species in upland and lowland crop cultivation, has naturalized many countries an invasive plant species. In this study, the allelopathic characteristic of L. was evaluated to understand its invasiveness. An aqueous methanol extract above-grand parts suppressed growth species; Echinochloa crus-galli Beauv., Vulpia myuros C. Gmel. Lolium multiflorum Lam., plants; cress (Lepidum sativum L.), lettuce (Lactuca sativa L.) alfalfa (Medicago L.). Significant reductions were observed concentration increased. The effectiveness varied with test present research suggests that may have contribute