Effect of 8 Exogenous Hormones on Bolting and Yield of Angelica sinensis

The effects of spraying 8 exogenous hormones under different concentration treatment at seedling stage on bolting and yield of Angelica sinensis are studis. The result shows that 8 exogenous hormones could effect on bolting-rate,growth of Angelica sinensis,including height,leaves and canopy,increase yield of Angelica sinensis. The best treatment is MH with dose of1.700 g/L,which bolting-rate of Angelica sinensis is 6.67%,32.66 percentage points lower than CK,the growth Angelica sinensis more than CK,the single fresh weight of Angelica sinensis is 120.60 g,182.63 percentage points more than CK,the yield is10 130.04 kg/hm~2,163.78 percentage points more than CK. MH with dose of 1.700 g/L could reduce bolting-rate,increasing the single fresh weight and yield of Angelica sinensis,suggesting application in cultivation.