Construction of the High-efficiency Regeneration System of Blueberry with Its Leaves The Exogenous Hormornal Control of the Development of Regenerated Flower Buds in Hyacinthus orientalis Effects of Subculture Times on Organogenesis Character istics of Apple inV itro Shoot Explants Effects of Subculture Times on Organogenesis Character istics of Apple inV itro Shoot Explants Role of Exogenous Hormones in Inducing Cells in different Positions of Perianth Explants to Regenerate Flower Buds in Hyacinthus orientalis he Establishment of the Adventitious Bud Regeneration System of Thymus mandschuricus he Establishment of the Adventitious Bud Regeneration System of Thymus mandschuricus Adventitious bud regeneration from petiole of pear(Pyrus) Establishment for Culture In Vitro and Plant Regeneration System of Citrus grandis cv.Chandler PLANT REGENERATION FROM COTYLEDON OF IMMATURE EMBRYO OF JUJUBE