Effects of UV-B radiation and light recovery on physiological property and cell ultrastructure of Bryum argenteum Effects of Shade and Light Recovery on Soybean Cultivars (Lines) and Its Relationship with Yield in Relay Strip Intercropping System EFFECTS OF LOW LIGHT STRESS AND LIGHT RECOVERY ON REACTIVE OXYGEN METABOLISM OF MAIZE SEEDLINGS Effects of shading and light recovery on soybean morphology and photosynthetic characteristics in soybean-maize intercropping system Effects of Low-light Stress on Kernel Setting, and Carbon and Nitrogen Metabolism of Different Maize (Zea mays L.) Genotypes Effects of Low-light Stress on Male and Female Flower Development and Pollination and Fructification Ability of Different Maize (Zea mays L.) Genotypes