Pas significantly improved fresh weight, uptake of vase solution, flower opening and vase life of gladiolus. Spermidine at a concentration of 100 ppm+4% sucrose,500 ppm Spm +4% sucrose, 100 ppm Put +4% sucrose, 100 ppm Spd +4% sucrose and 500 ppm Spd +4% sucrose significantly improved vase life over both control and 4%sucrose. PAs delayed senescence and improved vase life of cut spikes by improving membrane stability