Effects of exogenous spermidine on mitochondrial function of tomato seedling roots under salinity alkalinity stress. STUDIES OF AQUATIC MACROPHYTES IN SALINE-ALKALINE PONDS THE EFFECTS OF HIGH-pH AND IRON ON ROOT Fe~(3+) REDUCTASE ACTIVITY OF Rhododendron mucronatum AND Rhododendron simsii The Physiological Characteristics and Salinity and Alkalinity Resistance of Two Ectomycorrhizal Fungi Effects of alkalinity and pH on the survival, growth and neonate production of two strains of Moina mongolica Daday Effects of Pre-soaked Seeds with Spermidine on Tomato Seedling Salinity-alkalinity Tolerance Characteristics and selection of efficient lignocellulose degradation microbial community Alkalinity of organic manure and its mechanism for mitigating soil acidification Effects and early mechanisms of complex salt and alkali conditions on seed germination and seedling growth of Flaveria bidentis Optimum Harvest Time of Vicia cracca under Stress Condition Adaptability of abnormal tadpole (Rana chensinensis) to water pH,salinity and alkalinity in Changbai Mountain of China Progress in Endophyte Improving Plant Salt and Alkali Resistance Eco-physiological Characteristics of Alfalfa Seedlings in Response to Various Mixed Salt-alkaline Stresses Effects of Alkalinity on Photosynthesis Activity and Ultrastructure of Microcystis aeruginosa FACHB 905