Controlling invasive barnyard grass (Echinochloa crus-galli L.) weed growth using rice (Oryza sativa L. var. NSIC RC 218 SR) straw methanolic extract

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Controlling invasive barnyard grass (Echinochloa crus-galli L.) weed growth using rice (Oryza sativa L. var. NSIC RC 218 SR) straw methanolic extract

Bernard B. Balderas
Int. J. Biosci.22( 5), 62-80, May 2023.
Certificate: IJB 2023 [Generate Certificate]

Abstract

Weeds are a severe threat to sustainable crop production and although herbicides provide effective weed control, environmental and health concerns push for alternate means of weed control. Allelopathy offers an economical, effective, and environmental-friendly approach to weed management. This experimental study determined the herbicidal activity of Oryza sativa L. var. NSIC RC 218 SR (rice) straw methanolic extract to the growth of Echinochloa crus-galli L. (barnyard grass) in terms of germination percentage, height, leaf number, leaf area, root length, root mass/number, shoot mass, and dry weight. Also, the study determined if there are significant differences among the various concentrations of the growth of barnyard grassThe results of the experiment confirmed the allelopathic potential of Oryza sativa L. var. NSIC RC 218 SR (rice) straw methanolic extract in inhibiting the growth of barnyard grass as observed in the rates of reduction in height, leaf number, leaf area, root number, and dry weight. As the concentrations increase, the herbicidal effects of rice straw methanolic extract also progressively increase. Hence, it is possible that its allelopathic effects on the growth of Echinochloa crus-galli L. weed can be comparable with the inhibitory effects of Butachlor.

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