Discovery of natural triploid variations of Dioscorea zingiberensis and its evaluation of main economic qualities Water-soluble constituents from Dioscorea zingiberensis Biocatalyticacidhydrolysisofdiosgeninin Dioscoreazingiberensis through polyOxethyleneoxide-maleic acidanhydridemodified cellulose enzyme Comparison of Leaf Morphology in Different Ploidies of Dioscorea zingiberensis Process of extracting diosgenin from Dioscorea zingiberensis by grinding starchand ultrasonic extracting method Comparison of physiological index and diosgenin content in different ploidy of Dioscorea zingiberensis Extraction of diosgenin from Dioscorea zingiberensis through stepwise biocatalysis Dynamic Changes of the Contents of Calcium,Zinc and Phytate in the Rhizomes of Dioscorea zingiberensis C.H.Wright