小麦生育中后期降雨过多的渍水逆境是长江中下游麦区小麦高产、稳产的主要限制因子[1,2]。如1998年春季多雨形成渍害造成该麦区小麦普遍减产3～5成。由于渍水而严重影响小麦正常生长发育和籽粒形成、灌浆与成熟,降低产量和品质[4,5]。因此,预防和减轻小麦渍水逆境的危害对于提? The waterlogging adversity with too much rainfall in middle and late wheat growth stage is the main limiting factor for high yield and stable yield of wheat in the middle and lower reaches of the Yangtze River [1,2]. For example, rainy patches in spring 1998 caused a general reduction of 3-5% of wheat in the wheat area. Due to waterlogging, the normal wheat growth and grain formation, grain filling and maturity are seriously affected, and the yield and quality are reduced [4,5]. Therefore, the prevention and mitigation of waterlogging in wheat adversity