ALLELOPATHIC EFFECT OF PARTHENIUM HYSTEROPHORUS (L.) ON THE SEED GERMINATION AND SEEDLING GROWTH OF SORGHUM SEEDSA.S. Jondhale, S.P. Chavan, S.A. Jondhale and B.D. WaghAbstract The allelopathic effect of aqueous leaf extract (25%, 50%, 75% and 100%) of Parthenium hysterophorus (L.) was investigated on the germination and early growth of sorghum [Sorghum bicolor (L.) Moench] in the laboratory. Among tested concentrations, the significantly maximum seed germination was observed to 25 and 50 % concentration and the germination percentage was supressed at highest concentration to 75 and 100 %. On other hand root and shoot length of jowar seed was inhibited with increasing concentration of aqueous leaf extract of Parthenium. It can be concluded that Parthenium leaf aqueous extract contain allelopathic compounds in their tissues which may cause allelopathic effects on jowar crop. |