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Number of emergent S. hermonthica plants per pots planted with rice. Umgar, NERICA5, NERICA13, NERICA4, Kosti1, and Kosti2 were used in the third pot experiment. The Striga seeds (0, 16, 32, and 48 mg) were mixed into top 5 cm of soil in each pot. Bars indicate standard errors of each mean value of six replications.
