Abstract:

Regulation mechanism of endogenous hormone is of great importance for efficient water use of crops.In this paper, firstly, necessity and importance of further study on regulation mechanism of endogenous hormones for water use efficiency was dissertated, and then research progresses at home and abroad were reviewed including relationship between endogenous hormone and water use efficience in leaf level, between endogenous hormone and water use efficiency in biomass level and between endogenous hormone and water use efficiency in yield level of crops. Based on the research progresses, some problems and controversies in the research field were put forward, and future research trends of endogenous hormone in water use efficiency were discussed.