Research advances on crop canopy temperature

Crop canopy temperature is the outcome of the interactions of crop’s genetic characteristics and environmental conditions,which not only affects leaf functional period,transpiration rate,and photosynthetic capacity,but also affects grain protein content and starch synthesis. Crop yield is strongly affected by the canopy temperature after flowering,especially at mid-late grain-filling stage. This paper reviewed the research advances on the effects of canopy temperature on crop yield,related mechanisms,and the factors affecting canopy temperature,and pointed out that to breed superior genotypes and to implement reasonable agronomic practices should be the effective ways for improving crop yields and reducing canopy temperature.