Anti-transpirants are chemical materials which can be applied on the transpiration surface of plant in order to restrain the water loss from transpiration. It includes 3 styles: Stomatal Closing Compounds, Film-Forming Anti-transpirants and Reflecting Anti-transpirants. Anti-transpirant is limited in applying on field crops due to its negative effects on environment. Recently supported by a 863 project, we developed several new kinds of anti-transpirant without toxicant. The effect of these new mate...