In this study, the effect of salicylic acid on vase life and postharvest quality of cut carnation (Dianthus caryophyllus L. ‘Liberty Abgr’) had been investigated. The experiment was conducted based on completely randomized design with salicylic acid in 4 concentrations (0, 50, 100 and 150 mgl-1) and 3 replications. Analysis of variance revealed that the effect of salicylic acid on vase life and water absorption (p≤0.05) and bacterial colonies population in vase solution and dry matter percentage (p≤0.01). According to mean comparisons, 150 mg l-1 salicylic acid had the priority in 3 traits: 12.67 days vase life, 48.17 log10CFUml-1 bacterial clonies and 12.86% dry matter percent ; and 50 mg l-1 had the most water uptake (1.59 ml l-1 F.W.).
