Abstract
Cut flowers of carnation were treated with Salicylic acid (0,1.5, 3 mM) and sucrose (0, 3%).The effects of Salicylic acid on the ACC-oxidase activity, bacteria populations in vase flower preservative solution, anthocyanin leakage, Membrane stability, malondialdehyde and ACCoxidase activity of cut flowers of carnations (Dianthus caryophyllus L. cv.White) were investigated. The experimental results showed that SA treatment cause descrease MDA content and ACC-oxidase activity, reduced the membrane permeability and peroxidation of lipids.also, Results showed that The best treatment involved 1.5 mM SA+ sucrose 3% . The vase solution containing 1.5 mM Salicylic acid + sucrose 3% significantly descreased MDA content, ACCoxidase activity and bacteria populations in vase flower preservative solution and increased the vase life and membrane stability of carnation cut flower compared to the control. Results suggested that Salicylic acid increases membrane stability by descrease MDA content and ACC-oxidaseactivity, bacteria populations in vase flower preservative solution of the carnation cut flowers.
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