STUDIES ON PHOTOSYNTHETIC CHARACTERISTICS IN RICE HYBRID PROGENIES AND THEIR PARENTS I. CHLOROPHYLL CONTENT, CHLOROPHYLL-PROTEIN COMPLEX AND CHLOROPHYLL FLUORESCENCE KINETICS Effects of Dehydration and Rehydration on Photosynthesis of Detached Leaves of the Resurrective Plant Boea hygrometrica Photosynthetic Capability of 12 Genotypes of Triticum aestivum Effects of water stress on photosynthetic pigment in leaves and chlorophyll fluorescence of Cynanchum komarovii Effects of Light intensity on Photosynthetic Characteristics of Wheat Seedling Exogenous betaine improves photosynthesis of Lycium barbarum under salt stress Comparison of Growth and Photosynthesis in Response to Salt Stress in Populus Hybridization Clones and Their Parent Species Comparison on Characteristics of the Fast Chlorophyll Fluorescence Induction Kinetics between Pinus Species and Populus Species Photosynthetic Characteristics of Two Superhigh-yield Hybrid Rice