In vitro mutation induced by ethylmethane sulfonate in Stevia rebaudiana and SRAP identification of salt-tolerant mutants The Fertilization and Early Development of Embryo and Endosperm in Stevia rebaudiana Bertani STUDY ON STRUCTURE OF DIFFERENT-STAGED LEAF CELLS OF STEVIA REBAUDIANA BERTONI AND DISTRIBUTION OF STEVIOSIDE CONTENT Plasmalemma Invaginations in Cultured Callus of Stevia rebaudiana: Ultrastructure and Ultracytochemical Localization of Acid Phosphatase THE ULTRASTRUCTURE OF CHLOROPLASTS IN Stevia rebaudiana Bertoni LEAVES AT DIFFERENT LAYERS AND CHANGES OF STEVIOSIDE CONTENT THE VARIATION OF STEVIA REBAUDIANA BERTANI QUANTITY CHARACTER AND RELATIONS TO THE YIELD Ultrastructural Study of Mesophyll Cells During Their Dediff erentiation in Stevia rebaudiana Ultrastructural Study on Microbody ot Cells in Leaves mad Root-Tips of Stevia rebaudiana Bertoni ULTRASTRUCTURAL CHANGES OF CHLOROPLAST DURING CALLUS INDUCTION IN LEAF EXPLANTS OF STEVIA REBAUDIANA BERTONI AN ULTRASTRUCTURAL STUDY ON CELLS WITHIN MERISTEMATIC REGIONS IN CALLUS CULTURES OF STEVIA REBAUDIANA ON DIFFERENTIATING MEDIUM A STUDY ON THE MUTAGEN OF MULTIPLOID OF STEVIA REBAUDIANA BERTONI INDUCED BY COLCHICINE Construction of Microsatellite-Enriched Library and Isolation of Icrosatellite Markers in Stevia rebaudiana THE GROWTH AND DIFFERENTIATION OF CALLUS CULTURES OF STERIA REBAUDIANA IN RELATION TO THE STEVIOSIDE ACCUMULATION CHLOROPLAST ULTRASTRUCTURE AND DEDIFFERENTIATION IN TISSUE CULTURES OF STAEVIA REBAUDIANA BERTONI ULTRASTRUCTURAL STUDIES ON MEMBRANED INCLUSIONS IN THE CELLS OF MERISTEMATIC REGIONS OF STEVIA REBAUDIANA CALLUS TONOPLAST INVAGINATIONS AND INTRAVACUOLAR VESICLES IN CULTURED CALLUS CELLS OF STEVIA REBAUDIANA Application Prospect of Genetic Engmeering and Metabolic Engineering in Improving Its Production of Steviol Glycoside Effects of Low Energy Carbon Ion and Nitrogen Ion Implantation on Germinant Rate, Growth Weight and Peroxidase of Stevia rebaudiana Bertoni Analysis on DNA Methylation Diversity of Diploid and Autotetraploid of Stevia Rebaudiana Bertoni In vitro Induction and Identification of Autotetraploid Stevia rebaudiana Bertoni