Morphological characterization and allelopathic inhibition of weedy rice (Oryza sativa f. spontanea WR19 and WR20) by OM 5930 rice extract at different treatment stages

Weedy rice threatens rice productivity by competing with cultivated rice, leading to yield losses and management challenges. This study investigates the inhibitory effects of OM 5930 rice extract on two weedy rice lines (WR19 and WR20) at different treatment stages, revealing its potential for biological weed control. The findings highlight OM 5930 extract as a promising eco-friendly alternative for sustainable rice weed management, offering insights into integrating allelopathic rice varieties into agricultural practices.