Comparison of Photosynthetic Characteristics of Grafted and Own-root Seedlings of Cucumber under Low Temperature Circumstances Increased atmospheric CO2 concentration and the possible alteration in structure of forest community Photosynthetic responses of Phyllostachys edulis‘Pachyloen’to doubled CO2 concentration Response of photosynthesis to water stress in four saplings from subtropical forests under elevated atmospheric CO2 concentration EFFECT OF HUMAN ACTIVITY ON 13 C/ 12 C RATIOS IN TREE RINGS OF PINUS MASSONIANA ON DINGHUSHAN EXPERIMENT WITH INFLUENCE OF CO_2 CONCENTRATION IN SIMULATED ATMOSPHERE ON SOYBEAN EFFECT OF GROWTH IRRADIANCE ON STABLE CARBON ISOTOPE RATIO, INTERCELLULAR COsub>2 CONCENTRATION AND WATER-USE EFFICIENCY OF TWO WOODY PLANT IN SUBTROPICAL NATURAL FOREST STUDY ON THE CAUSES FOR PHOTOSYNTHETIC DECREASE OF WHEAT AT THE MIDDAY——Ⅲ. Analysis of the Formation and Effect of Midday Nap in wheat by Ecological and Physiological Factors Growth chamber study on the impact of CO2 concentration and radiant intensity on Salix psammophila photosynthetic rate Photosynthesis Characteristic of Quercus liaotungensis in Taiyue Mountain Region