Effect of Aqueous Extract From Parashorea chinensis Seeds on Seed Germination and Early Seedling Growth of Four Kinds of Plants

In order to explore the characteristics of endogenous substance in Parashorea chinensis,this experiment studied influence of different concentrations of the aqueous extract from Parashorea chinensis seeds on seed Germination and early seedling growth of Brassica campestris,Daucus carota,Zenia insign and Pinus massoniana.The result indicated that different concentrations of the aqueous extract from Parashorea chinensis seeds exhibited the inhibitory effect on the seed germination rate,the simplified vigor index,height and length of different plants at different degree,and showed the extract concentration,the more obvious the inhibitory role.The inhibiting effect of aqueous extract on the seeds of herb was higher than that of woody plants.It was concluded that the Parashorea chinensis seeds contained some germination-restraining components.