The Effect of Exogenous ABA on the Resistance to the Chilling Stress in Cucumber Seedlings Effects of sodium nitroprusside on alleviating magnesium deficiency of cucumber seedlings under NO-3 stress The Change of the Sulfhydryl Group and the Peroxidation of Membrane Lipids in the Cotyledons of Cucumber Seedlings Under Low Temperature Effects of silicon on growth of cucumber seedlings under low temperature stress The Variation of Chlorophyll Fluorescence Parameters of Cucumber Seedlings Leaves with Salicylic Acid Treatment under High Temperature Stress Effects of Exogenous Melatonin on Growth and Antioxidant System of Leaves in Cucumber Seedlings under Low Temperature and Weak Light Stress THE EFFECT OF EXOGENOUS DRUGS ON DAMAGE OF CUCUMBER SEEDLINGS UNDER CHILLING STRESS Effect of Exogenous SA on Photosynthesis Characteristics in Cucumber Seedling Leaves during the Recovery of the Day after Night Chilling Stress Physiological effects of salicylic acid (SA) on high quality seedling forming and chilling resistance of cucumber seedlings Interactive Effects of Drought Stresses and Elevated CO2 Concentration on Photochemistry Efficiency of Cucumber Seedlings Ca2+ Effects on the Growth of Cucumber Seedlings and the Anaerobic Respiration Enzymes in their Roots under Rhizosphere Hypoxia Stress Effects of Exogenous γ-Aminobutyric Acid on Growth and Reactive Oxygen Species Metabolism of Cucumber Seedlings under NaCl Stress Effects of Hypoxia Stress on Anaerobic Respiratory Enzyme and Antioxidant Enzyme Activities in Roots of Cucumber Seedlings