Phytotoxic Effect of Aqueous Extracts of Acalypha wilkesiana Mull. Arg., Centrosema pubescens Benth and Phyllanthus amarus Schum. & Thonn on Germination and Growth of Amaranthus cruentus L. and Corchorus olitorius L.

Allelopathy is a concept that applied in weed management to minimize extensively the reliance on herbicide agriculture. The allelopathic potential of Acalypha wilkesiana, Centrosema pubescens and Phyllanthus amarus Amaranthus cruentus Corchorus olitorius were investigated. Different concentrations leaf aqueous extracts A. C. P. determine their effect under laboratory conditions. profiling phytochemicals showed glycosides, phenols, terpenoids, saponins steroid present extracts. seed germination, radicle length, plumule length test crops significantly decreased by compared with control treatments. results revealed inhibitory was proportional extracts, higher had stronger effect. result suggested or stimulatory may be due presence allelochemicals like terpenoids steroids etc. which cause effects field Therefore, these plants should controlled they grow cultivated crops.