Effects of NaCl Stress on Ion Absorption and Distribution in Sour Jujube Seedlings The role of the isotope tracer technique in ecological research of arbuscular mycorrhizal fungi EFFECTS OF DROUGHT ON THE ABSORPTION OF PHOSPHORUS IN MAIZE SEEDLINGS Effects of NaCl Stress on Ion Absorption and Distribution in Sour Jujube Seedlings Impact of high salt stress on Apocynum venetum growth and ionic homeostasis. Establishment of MDCK-pHaMDR cell model and standard operation procedure for assessing blood-brain barrier permeability of chemical components of traditional Chinese medicine A Comparative Study on the Growth of Salt-treated Pucciinellia tenuiflora at the Seeding and Elongating Stages and its Relations with Irons Studies on the Difference of Nitrogen Absorption, Transportation and Distribution in High and Low Protein Wheat Cultivars