Effects of aqueous extracts from Oxytropis ochrocephala on seeds germination and seedling growth of three plants

A allelopathy experiment was conducted to determine the effects of aqueous extracts from Oxytropis ochrocephala on seeds germination and seedling growth of Elymus nutans, Achnatherum inebrians and E.sibiricus cv Duoye by using TP in this study. This study showed that the germination percentages, radicle length and plumule length of three plants reduced as the concentration of aqueous extracts from O.ochrocephala increased. 4% and 20% aqueous extracts did not affect on seeds germination of A.inebrians, but other treatments significant affected seed germination of three plants (P0.05). 4% the aqueous extracts had no significant effect on seedling growth of A.inebrians (P0.05), but other treatments had significant effect on seedling growth of three grasses (P0.05). This study suggested that the different concentration aqueous extracts from O. ochrocephala included 4%, 20% and 100% showed an inhibitive effect on three plants.