Accumulation and Distribution Characteristics of Rhubarb Polysaccharides in Root of Rheum palmatum L. Effect of various media on quality of hairy root clones of Rheum palmatum Isolation and identification of the pathogens causing Rheum palmatum root rot Studies on filling dynamic and germination characteristics of Rheum palmatum seeds Studies on Polysaceharide of Rheum palmatum L. Comparison of HPLC fingerprint chromatography of Rheum palmatum of different producing areas Understanding differences between Rheum palmatum and R. franzenbachii from perspective of chemistry, efficacy and toxicity Element concentrations in Rheum palmatum and R.likiangense plants and soil in Tibet plateau THE STUDY OF ACTIVE INGREDEENTS ON 8 TRADITIONAL CHINESE MEDCINES BY THE BRINE SHRIMP LETALITY BIOASSAY ABNORMALITY AND DEVELOPMENT OF ANTHER IN RHEUM PALMATUM L Effect of different sowing quantities on seedling quality of Rheum palmatum Induction of hairy roots and anthraquinone production in Rheum palmatum Primary study on shapes of fruits and germination characters of seeds of Radix et Rhizoma Rhei Pharmacokinetic study of Rheum palmatum in vivo in rats Effects of different carbon sources on biomass accumulation and anthraquinone yield of hairy root cultures ofRheum palmatum Effect of rare-earth elements La3+ on growth of hairy roots and normal roots of Rheum palmatum and their yield of anthraquinone Biotransformation of podophyllotoxin by cell suspension culture and root culture of Rheum palmatum Survey and pathogen identification of rhubarb diseases in Gansu province Variety regulation of aloe-emodin-3-CH2-O-β-D-glucopyranoside and emodin-8-O-β-D-glucopyranoside in five processed pieces from Rheum palmatum Embryological Studies in Rheum palmatum L. Ecological Characteristics of Rheum palmatum in Yushu,Qinghai