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机译:Photosynthetic responses of Populus przewalski subjected to drought stress.
Chengdu Institute of Biology, Chinese Academy of Sciences, P.O.Box 416, Chengdu 610041, China.;
chlorophyll diurnal variation; drought field capacity; fluorescence gas exchange; irrigation leaf conductance; leaves microclimate photosynthesis photosystem II; relative humidity; stomata temperature transpiration water stress; w ater use efficiency;