Genetic Diversity Analysis and Primary Core Collection Construction in Yam (Dioscorea opposita Thunb.) by ISSR Marker Variation of endogenous hormones in formation of microtuber of Dioscorea opposite in vitro Effect of Processing on Phospholipid of Dioscorea opposita Thunb Determination of allantoin in dried rhizoma of Dioscorea opposita by capillary electrophoresis Development analysis of Dioscoreae Rhizoma in perspective of invention patent Community characteristics of natural Pinus tabulaeformis forest in Hilly Loess Regions Tissue culture of Dioscorea opposita “foshou” Study on the callus induction and plantlet regeneration from the bulbil of Dioscorea opposita n vitro Propagation of Common Yam (Dioscorea opposita) Studies on chemical constituents of Dioscorea opposita Variation of Endogenous Hormone and Carbohydrate Contents in Growing Yam Bulbils Research on Tissue Culture for Rapid Propagation and in vitro Bulbils Regeneration System of Dioscorea opposita Thunb Variation of Endogenous Hormone and Carbohydrate Contents in Growing Yam Bulbils Impact factors in in vitro induction of microtubers from Dioscorea opposita Effects of Different Processed Dioscorea opposita Thunb. on Clearance Rate of Charcoal Particles in Mice Cryopreservation technique of Dioscorea opposita germplasm by vitrification Application of orthogonal design in tissue culture of Dioscorea opposite The callus induction and high-frequency regeneration of Dioscorea opposita Thunb Effect of Gradient Magnetic Field on Growth of Stem Pearls of Dioscorea opposita During Seedling Stage Cryopreservation Technique of Dioscorea opposita Thunb. Germplasm Resources by Vitrification