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Citric acid, sucrose and Cu2+ as potential vase treatments for cut Acacia holosericea G. Don foliage stems
- Mohd Rafdi, Husni H., Joyce, Daryl C., Irving, Donald E., Gantait, Subhendu S.
- Journal of horticultural science & biotechnology 2018 v.93 no.1 pp. 73-80
- Acacia holosericea, citric acid, copper, cut flowers, cut foliage, leaves, postharvest treatment, stems, sucrose, vase life, wilting
- The short vase life of Acacia holosericea cut stems needs to be improved before they are marketable as cut foliage for floral arrangement. The effects of citric acid, Cu2+ and sucrose were investigated for their efficacy in postharvest treatments to extend vase life of the cut stems. Five experiments were conducted involved combinations of citric acid either with Cu2+ or sucrose. Vase life, relative fresh weight (RFW), and vase solution uptake were measured as indicators of cut stem quality. The effect of Cu2+ alone was shown to be consistently superior in improving vase life by up to 1.9-fold as compared with deionised water control. Citric acid had a smaller effect than Cu2+ and did not act synergistically with Cu2+. Sucrose on its own or in combination with citric acid did not improve vase life significantly; instead sucrose promoted early wilting or desiccation of the cut foliage.