Characteristics of Endogenous Hormones in Different Rice Seedling Raising Methods and its Relationship with Rooting Ability Inhibition of winter seedling raising in greenhouse of prematurebolting in Angelica sinensis Studies on Seed Germination and Seedling of Immature Seeds and Embryos of Longan ‘Shixia’ Study on H igh yield Cultivation Technology of ShortRotationMedical Plantation of Cephalotaxus fortunei A Study on Cuttage Seedling-Raising of Masson Pine and Its Afforestation Effect