Comparison between pre and post application of Salicylic acid in senescence trend of Easter lily cv. tresor

Since the quality and vase life of cut flowers is seriously related to the pre and postharvest factors, so a lot of efforts have been done for increasing quality and longevity of them using different methods and compounds. In the present project, the factorial experiment was done based on Completely Randomized Design to study the effect of pre and post-harvest salicylic acid application on storability of Lilium. Solutions with 0, 50, 100 and 200 μM concentrations of salicylic acid were sprayed on flowers and their cut flowers were placed in the same solutions after harvest. Results showed the positive effects of 50 and 100 μM concentrations of pre and postharvest application of salicylic acid on the increase of bud number and delay in antioxidant enzyme activity reduction and also its trend was slow compared to control. Salicylic acid treatment had no significant effect on total protein in 5 developmental stage of flower and the level of hydrogen peroxide had an increasing trend, but to a lesser extent than controls. Pre and post application of salicylic acid with increasing in cell antioxidant capacity and also water balance regulation in plant, caused to extend in vase life of Lilium cut flowers in comparison with control. Due to spread of harmful chemical compounds in preservative solutions, the mentioned composition had more potential for applying in Easter lily greenhouses, flower retailers and home.