Karyotype of Different Ploidy Dioscorea zingiberensis C. H. Wright Effects of Fe,Mn,and Zn on rhizome yields and disogenin contents of Dioscorea zingiberensis Isolation and identification of steroidal saponins from fresh rhizome of Dioscorea zingiberensis Effect of different light intensity on diosgenin and biomass of Dioscorea zingiberensis of low-light intensity type Effects of Fe, Mn, and Zn on rhizome yields and disogenin contents of Dioscorea zingiberensis Studits on the morphogenesis of rhizome from seedling and the accumulation of dioscin of Dioscorea zingiberensis Effect of different light intensity on diosgenin and biomass of Dioscorea zingiberensis of low-light intensity type