Under the conditions of high intensity of illumination and high temperature though the intensity of photorespiration Was higher, but its range was Limited, and the midnap of photosynthesis couldn' t performed.Even under the oversatura-tion intensity of illumination it was not the direct factor of the formation of midnap of photosynthesis. Meanwhile it was indicated once more that the accumulation of photosyn-thate played an important role in the cause for the midnap of photosgnthesis.Combining with the form...