The in vivo allelopathic effect of above ground portion of colocasia extract was assessed on germination, TDMP, VI and growth of rice, maize, ragi, cumbu, green gram, black gram, red gram, sesamum, sunflower, groundnut, sorghum and cotton at 10 and 30 DAS. The colocasia treatment drastically and significantly reduced, the germination, DMP and VI of rice, ragi, cumbu, black gram and goundnut. However, the other crops could resist the adverse allelopathic effect caused by colocasia, and higher DMP and VI recorded in the rest of the crops might be reflected in higher crop productivity. The adverse effect was possibly due to the leaching out of few allclochemicals which hamper the crop growth and performance
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Tamil Nadu Agricultural University
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Tamil Nadu, India.
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