Effects of NaCl Stress on Ion Absorption and Distribution in Sour Jujube Seedlings Effects of NaCl Stress on Ion Absorption and Distribution in Sour Jujube Seedlings Association of infected wild sour jujube Zizyphus spinosa Hu by phytoplasma with occurrence of cultivated Chinese jujube Zizyphus jujuba Mill witches’ broom disease Growth and Physiological Characteristics of Wild Sour Jujube Seedlings from Two Provenances under Soil Water Stress