Mechanisms of Seed Dormancy of Acer griseum A Study on the Dormancy Characteristic and Inner Inhibitory Substances of Fructus Schisandrae Germination inhibitory substances extracted from the seed of seven species of Quercus Study on Activity of Inner Inhibitory Substances of Acanthopanax senticosus (Rupr.et Maxim) Harms Fruits and Seeds Seed germination character of Radix Angelica Pubescentis Study on endogenesis inhibitory substances in seed of Thesium chinense Seed Germination and Endogenous Inhibitory Substance of Bupleurum scorzoneraefolium