[Objective]To understand the relationship between the expression of carbonic anhydrase gene and its enzyme activity in triticale under salt stress.[Method]Two triticale varieties XXHM 3 and XXHM 5 were stressed with 0.15 M NaCl,and the expression of carbonic anhydrase gene was detected with fluorescence real - time quantitative PCR technique,and the activity of carbonic anhydrase was assayed with the pH method.[Result]The expression of carbonic anhydrase gene in triticale was enhanced under salt stress,and ...