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Preserving the Quality of Cold-stored Rose Flowers with Ethylene Antagonists


The effects of inhibitors of ethylene synthesis and action on the vase life and quality of fresh and cold-stored ‘Gabriella’ roses (Rosa hybrida L. cv. Gabriella) were investigated. Aminooxyacetic acid (AOA) as a 1-hr pulse at 3 or 10 mM had no effect on the longevity of fresh flowers. However, the 10 mM pulse, applied either before or after cold-storage, extended by up to 2.7 days the longevity of roses that had been stored for 3 weeks at 1C. Silver thiosulfate (STS), as a 0.5-hr pulse at 0.5 mM, extended the life of fresh and cold-stored roses by 2 and 3 days, respectively.