Effect of Exogenous H2O2 on Proline Accumulation and Metabolic Pathway in Leaves of Oat Seedlings under Complex Saline-Alkali Stress Effects of Complex Saline-alkali Stress on Seed Germination and Stress-resistance Physiological Characteristics of Naked Oat Seedlings Alfalfa seeding root characteristics under complex saline-alkali stress Establishment of The Estimation Model of K Content of Sambucus canadensis Root under Saline-Alkali Stress Effect of magnetic field on peroxidase activation and isozyme in Leymus chinensis Effects of Saline-alkali Stress on Nitrogen Metabolism Activity and Root Yield and Sugar Content of Suger Beet Effect of complex saline-alkali stress on physiological parameters of Nitratia tangutorum Morphological changes of phytoliths in Leymus chinensis under saline-alkali stress Effect on physiological characteristic of Medicago sativa under saline-alkali stress at seeding stage Difference of Ion Accumulation in Wild Soybean (Glycine soja) under High Saline-alkali Stress