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The thesis aimed to study Bloosming and Senescence affects of four plant hormones, 20、 40、 60、 80 mg.L-1IBA, 40 、 80、 120、 160 mg.L-1 6-BA, 40、 80、 120、 160 mg.L-1GA3 and 10、 20、 30、 40 mg.L-1ABA on cut lily in vase life.The results were as follows:(1)IBA can be quick nonpolar transport in the phloem of mature.Low concentration of IBA is beneficial to prolong the vase life of cut lily.IBA promotes the growth of cut lily , delayes onset of water deficit and improves the water balance of the peak value.