Modeling diurnal variations of CO2 flux over winter wheat with a coupled model of photosynthesis and evapotranspiration Diurnal change of photosynthetic characteristics and response to light intensity of seven ornamental grasses The dynamic diurnal simulation of gas exchange in apple leaves Study on the photosynthetic physiological characteristics of Panicum virgatum in Loess Hilly-gully Region Diurnal Variations and Light Response of Photosynthesis in Three Cultivars and Wild Type of Ziziphus mauritiana Lam. Diurnal Variations and Light Response of Photosynthesis in Three Cultivars and Wild Type of Ziziphus mauritiana Lam.