According to the debate about misusing hormone in cucumber production,the experiment treated cucumber with different concentration of Megestrol acetate and 5 kinds of hormones. The results showed that there were no changes found in flower and fruit under Megestrol acetate. And 2,4-D delayed the flowering and kept flower blooming. There was faster fruit growth ratio under GA(100 mg·L~(-1)) treatment. Furthermore,corollas were not completely expanded under NAA treatment. However,there were improvement on fru...