The correlation analysis between Populus Simonii ecophysiological indexes and environmental factors Effect of Ultraviolet Radiation on Cunninghamia lanceolata Somatic Embryogenesis Plantlets Effects of Moisture Conditions on the Physiological Indexes of Young-fruit Stage Loquat in North Marginal Area Effects of Moisture Conditions on the Physiological Indexes of Young-fruit Stage Loquat in North Marginal Area Effects of Low Temperature Stress on Physiological Characters of Critically Endangered Isoetes sinensis Palmer Physiological Resistance of Five Fast-Growing Willow Clones to Lead (Pb) Stress Physiological responses of Pennisetum longissimum var. intermedium seedlings to PEG, low temperature and salt stress treatments Response Characteristics of Casuarina equisetifolia Inoculated with Mycorrhizal Fungi under Low Temperature Stress Physiological responses of Chorispora bungeana seedings in vitro to drought stress simulated by PEG-6000 Application Effect of Piggery Biogas Slurry on the Soilless Culture of Swamp Cabbage Study on Changes of Carbon and Nitrogen of Bolting in Lettuce Caused by High Temperature