ISHS Acta Horticulturae 405: VI International Symposium on Postharvest Physiology of Ornamental Plants
EFFECT OF WATER TEMPERATURE ON WATER UPTAKE AND VASE LIFE OF DIFFERENT CUT FLOWERS |
| Author: | G. Slootweg |
| Abstract:
In the first part of this research the effect of the water temperature on the water uptake of roses has been investigated. After a dry period the most fast water uptake occurred in cold (0°C) water. The water uptake was slowest in water of 20°C. The effect of water of 40°C on the uptake was variable; sometimes as fast as in cold water, sometimes slower than in water of 20°C. Experiments with gassed and degassed water showed that not the temperature, but the extent of saturation of the water with air was responsible for the differences. The length of the dry period had no influence on these effects. There was some variability in the size of the differences between the treatments. In the second part of the research the effect of the water temperature on the water uptake and the vase life of twenty different cut flowers was determined. In some crops, wich took up the water very fast, no effect of the temperature on the speed of water uptake was found. Most crops showed the fastest water uptake in cold water, but the size of the effects depended on the crop. Very little effect was found on the length of the vase life and on bud opening. | |
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