Effects of Plant Growth Regulators on the Rhizomeps Multiplication and Differentiation in Cymbidium goeringii with Verge Line Pattern Leaves Effects of Plant Growth Regulators on the Rhizomeps Multiplication and Differentiation in Cymbidium goeringii with Verge Line Pattern Leaves Analysis on Factors Affecting in Vitro Propagation of Large-Flowered Hybridsof Cymbidium The Preliminary Research on the Rapid Propagation of Phalaenopsis by Usingthe Joint-points of Flower-stems as Explants The Preliminary Research on the Rapid Propagation of Phalaenopsis by Usingthe Joint-points of Flower-stems as Explants Analysis on Factors Affecting in Vitro Propagation of Large-Flowered Hybridsof Cymbidium