Diurnal Changes of Chlorophyll Fluorescence Characteristics of Japanese Yew Seedlings under Different Light Conditions Response of chlorophyll fluorescence characteristics of Populus euphratica heteromorphic Leaves to high temperature Effect of Tillage Mode on Diurnal Variations of Water Potential and Chlorophyll Fluorescence Characteristics of Flag Leaf after Anthesis and Water Use Efficiency in Wheat Effect of 5 Aminolevulinic Acid on Low Light Tolerance of Apple Leaves Effect of exogenous nitric oxide on chlorophyll fluorescence characteristics in tomato seedlings under NaCl stress Effects of aluminum stress on growth and characters of photosynthesis and transpiration in polygonaceae plants Effects of tillage patterns on photosynthetic and chlorophyll fluorescence characteristics of maize in rainfed area of Northeast China. Toxicity and interference effects of dibutyl phthalate on Pavlova viridis Influence of dust stress on the photosynthetic and chlorophyll fluorescence characteristics of Pistacia vera L.