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
Abstract:1.Under the control condition:constant optimum temperature(24℃)and CO_2 concentration(289 ppm),steady water potcntial andmagnitude of soluble carbohydrate,the decrease of photosynthesis atmidday was subdued at the begining.Decrease of CO_2 concentration andweaken of water potential going along with