ISHS Acta Horticulturae 424: II International Rose Symposium
INFLUENCE OF SIMULATED TRANSPORT ON POSTHARVEST LONGEVITY OF THREE CULTIVARS OF MINIATURE POTTED ROSE |
| Authors: | K. Borch, M.H. Williams, L. Høyer |
| DOI: | 10.17660/ActaHortic.1996.424.30 |
| Abstract:
Transport stress of miniature roses can affect their postharvest longevity. Transport stress includes dark storage, fluctuating temperature, exposure to ethylene, high humidity, and mechanical damage. The postharvest quality of three cultivars of Parade® miniature potted roses (Rosa x hybrida) from three growers in Denmark was evaluated during winter and summer 1994, using 0, 2, or 4 days Simulated Transport (ST). The main causes of reduced postharvest longevity were wilted flowers, infection by Botrytis and an increased number of yellow buds. After 18 days in a Simulated Postharvest Environment (SPE) there were no differences in the percentage wilted flowers for all plants ST for 0 or 2 days. The percentage of wilted flowers increased for 2 of the 3 cultivars exposed to 4 days ST as compared to controls. The degree of wilting was also dependent on the origin of the plants and was less severe in summer than in winter. The number of yellow buds and infection by Botrytis was higher in plants exposed to 4 days ST, and was more pronounced in winter. We conclude that if the initial quality of the miniature potted rose is high and stress conditions during transport are controlled, postharvest longevity can be maximized. | |
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