Study on genetic diversity of Codonopsis tangshen by SRAP and ISSR markers Characteristics of element contents and their influence factors in Codonopsis tangshen Study on seed germination testing standardization of Codonopsis tangshen Study on the Optimum Harvesting Time of Codonopsis tangshen Oliv.Produced in Banqiao HPLC fingerprint of Codonopsis tangshen from different habitats Determination of lobetyolin in root of Codonopsis tangshen fromvarious cultivation areas by high-performance liquid chromatography