Abstract: The effect of preservative containing 6\|BA and GA3 on biochemical and physiology of cut rose flowers during senescence was studied. The results showed that combined treatment of these two kinds of growth regulator can prolong the vase life of cut flowers， increase the activity of POD， slow down the rate of protein degradation， reduce the content of proline and water loss， increase the fresh weight of roses， and delay the reduce of soluble sugar content. But, it had no significant effect in maintaining the relative stability of membrane structure.

Key words: rose, 6\, BA, GA3, preservation