Abstract: Abstract: The effectps ofMHSmetabolism regulator on cuttingspsurvival rate, rooting percent and green
time, were studied by sp rayingMHS in the cutting of purpureus, cherry colt and pomegranate. The variation
in the contents of solubility carbohydrate, soluble p rotein and total chlorophyll and the activities of superoxide
dismutase ( SOD) were also discussed in the experiment. The results showed thatMHS could imp rove growth
of the p lants which root either easy or hard. The highest survival rate and rooting rate were obtained after the
cuttings of purpureus were soaked with rooting reagent and sp rayed byMHS. The survival rate and rooting rate
with this treatmentwere increased by 895173% and 735172% separately. The green time was 28185 d longer
than the control. The contents of solubility carbohydrate, soluble p rotein and chlorophyllwere increased grad2
uallywith the treated days. The activities of SOD were descend firstly, then enhanced. This showed thatMHS
increased survival rate by regulating the metabolism of cuttingps physiology and biochemistry.

Key words: Key words: Metabolism regulator, Softwood cutting p ropagation, Survival rate, Metabolic mechanism