Abstract: Abstract: The rooting and physiological biochemistry metabolize changes were studied during rooting of the softwood and plantlets in tissue of cherry's stock by treating of growth regulator NAA and IBA with water control. It was showed that the rooting rates and metabolize indexes of the cutting can be imp roved remarkably during the cutting rooting: When the softwood cutting soaked respectively with 100 mg/L NAA and IBA, the rooting rate 88.3% and 85% of them were obtained. The plantlets could rooting in out-tube after soaking with
100 mg/L NAA, rooting rates in this condition was 8611%; During the primordium formation the soluble sugars, chlorophyll and nucleic acid were increased sharply while the soluble protein were decreased, but it is contrary for the contents of soluble sugar and soluble protein in the course of adventitious root formation, then the soluble sugar gradually increased by assimilated nutriment and leaves photosynthesis in the stage of adventitious root elongation. The results illustrated that the growth regulator promoted rooting by regulating the contents of interior substances of cutting which related with rooting.

Key words: Cherry, Growth regulator, Stock, Soft wood cutting, Rooting, Biochemical metabolize