The variation of photosynthetically active radiation had significantly affected the stomatal conductance, transpiration rate and water use efficiency of the three plants.

有效光合辐射的变化对少花蒺藜草及其伴生植物的气孔导度、蒸腾速率和水分利用率均有显著影响。

Leaf temperature is the most tremendous influence factor to the transpiration rate, the next is photosynthetically active radiation, air humidity is the smallest influence factor.

叶片温度对水稻蒸腾速率的影响最大，光和有效辐射强度次之，空气湿度最小。