The diurnal pattern of LUE showed the figure of " V " at the flowering and maturation stages . For the orchardgrass , the maximum and minimum LUEs were respectively 54.5mmol/mol and 15.1mmol/mol at the maturation stage .
开花期和成熟期LUE日变化曲线呈V字形,中午LUE较低,成熟期鸭茅的最高值可达54.5mmol/mol,而最低值仅为15.1mmol/mol;