Physio-Ecological Response of Haloxylon persicum Photosynthetic Shoots to Drought Stress Study of resistance to dehydration in Haloxylon ammodendron and Suaeda physophora seedlings Analysis of Genetic Diversity of Haloxylon persicum (Chenopodiaceae) in Xinjiang by ISSR Plant architecture characteristics of Haloxylon ammodendron and Haloxylon persicum in Zhungar Basin COMPARATIVE STUDIES ON CRYSTAL IDIOBLASTS OF FIVE DESERT C4 PLANTS Characteristics of Chlorophyll Fluorescence Parameters in Three Desert Plants under NaCl Stress