Bioherbicidal Properties of Parthenium hysterophorus, Cleome rutidosperma and Borreria alata Extracts on Selected Crop and Weed Species

Natural product-based herbicides could be the effective alternatives to synthetic chemical for eco-friendly weed management. This research, therefore, was conducted identify phytotoxic properties of Parthenium hysterophorus L., Cleome rutidosperma DC. and Borreria alata (Aubl.) with a view introducing them as tool natural herbicide development. The methanol extracts these plants were examined on germination growth Zea mays Oryza sativa Abelmoschus esculentus (L.) Moench Amaranthus gangeticus f. Spontanea Roshev. (Weedy rice), Echinochloa colona Link., Euphorbia hirta Ageratum conyzoides L. under laboratory glasshouse conditions. A complete randomized design (CRD) five replications block (RCBD) four laid out experiments, respectively. In experiment, three plant 0, 6.25, 12.5, 50, 100 g L−1 tested survival rate, hypocotyl, radicle length eight test species. No seed A. conzyoides, E. hirta, recorded when P. extract applied at 50 L−1. C. had same effect those glasshouse, similar concentrations used in experiments sprayed 2–3 leaf stage grasses 4–6 broadleaf Tested less sensitive B. compared extract. Among weeds crops, conyzoides, mostly inhibited by Based results, most among developing new green agriculture.