Study on photosynthetic physiology characteristic of Cynanchum komarovii under water stress Physiological Ecology Studies on Artemisia ordosica and Cynanchum komarovii in the Maowusu Sandland Three New C21 Steroidal Glycosides from Cynanchum komarovii (Asclepiadaceae) Isolation and Microbial Inhibition Activity of Endophytic Fungus from Cynanchum komarovii Study on photosythetic characteristics of main constructive plants Cynanchum komarovii in Maowusu sandland Effects of water stress on photosynthetic pigment in leaves and chlorophyll fluorescence of Cynanchum komarovii Response of Plant Growth and Biomass Allocation to Grazing Disturbance in Desert Steppe of Ningxia The Chemical Constituents from Cynanchum Komarovii Al. Ilinski Effects of water stress on the growing and accumulation of osmolyte of Cynanchum komarovii Study on diurnal changes of photosynthesis and transpiration of Cynanchum komarovii and Glycyrrhiza uralensis in different stage Effects of drought stress on system of defense enzymes and RWC and membrane electrolyte in Cynanchum komarovii seedlings Effects of soil water stress on contents of chlorophyll,soluble sugar,starch,C/N of two desert plants (Cynanchum komarovii and Glycyrrhiza uralensis) Inducing and culturing technology of callus in Cynanchum komarovii