Climate change continually challenges our capabilities to feed the increasing population.Rising temperatures have the potential to shorten the crop growth duration and therefore impair crop yields.In past decades,China has successfully improved crop varieties to stabilize,and even lengthen,the crop growth duration to make use of increasing heat resources.However,because of the complicated cropping systems in the different regions of China,the possibility and the effectiveness of regulating crop growth duration to reduce the negative impacts of future climate change remain questionable.