Establishment and Optimization of plant regeneration of Hybrid larch(L.gmelinii 10×L.kaempferi 13) POLYEMBRYOGENESIS IN APOMIXISPARENT Ⅳ OF RICE Somatic Embryogenesis from Mature Zygotic Embryo Explants of Sorbus pohuashanensis Hedl Factors Affecting Induction of embryogenic callus of Larix gmelinii Adventitious Bud Induction and Plantlet Regeneration in vitro from Mature Zygotic Embryos of Ponderosa Pine Somatic Embryogenesis and Plantlet Regeneration from Immature Zygotic Embryos of Hybrid Larch In Vitro Rescue Culture of Zygotic Embryo of ‘Mopanshi’Persimmon Somatic Embryogenesis and Analysis of the Genetic Stability of RegenerationSystem in Grapevine ‘Sinsaut’ Somatic Embryogenesis and Analysis of the Genetic Stability of RegenerationSystem in Grapevine ‘Sinsaut’ In Vitro Rescue Culture of Zygotic Embryo of ‘Mopanshi’Persimmon Study on Somatic Embryogenesis and Plant Regeneration of Immature Zygotic Embryo of Cinnamomum camphora Factors Influencing the Induction of Somatic Embryogenesis in Quercus variabilis Organogenesis and Somatic Embryogenesis from Mature Zygotic Embryos of Cunninghamia lanceolata Cytological Investigation of Somatic and Zygotic Embryogenesis of Fraxinus mandshurica Somatic Embryogenesis and Plantlet Regeneration from Callus of Mature Zygotic Embryos of Masson Pine Cytological and Histological Investigations on Somatic and Zygotic Embryogenesis of Sorbus pohuashanensis Somatic Embryogenesis and Plant Regeneration from Immature Zygotic Embryos of Black Locust(Robinia pseudoacacia)