STUDY ON MORPHOGENESIS OF STUDY ON MORPHOGENESIS OF MULTI-TISSUE AND ORGANS IN THE TCL OF TOBACCO EPIDERMIS ORIGIN OF FLORAL BUDS IN TOBACCO PEDICELS CULTURED IN VITRO Study on the factors affecting Agrobacterium-mediated transformation in Aloe (A.arborescens) STUDIES ON AMITOSIS OF EPIDERMAL CELL AND SPECIAL EFFECT OF 2, 4-D IN THIN CELL LAYER CULTURE OF Begonia rex-cultorum Changes of Endogenous Hormone Contents During Floral Bud and Vegetative Bud Differentiation in Thin Cell Layer Culture of Cichorium intybus L. Explant Cytohistological Study of Morphogenesis in Thin Cell Layer Culture of Ovaryof Lilium‘Star Gazer’ Cytohistological Study of Morphogenesis in Thin Cell Layer Culture of Ovaryof Lilium‘Star Gazer’ Floral Buds Induction in Thin Cell Layer Cultures of Tobacco Plants and Study on the Floral Gradient