ISHS Acta Horticulturae 177: IV International Symposium on Flower Bulbs
THE EFFECT OF A PRETREATMENT AT THE GROWERS ON THE BULB FLOWER QUALITY |
| Author: | A. Swart |
| Abstract:
Dry storage during transportation has a negative effect on the quality of cut flowers. A pretreatment at the growers has to compensate these effects. Tulips and irises need at least water before they are stored and transported. Besides this pretreatment, immediately after the harvest, tulips should be harvested in a distinct stage of maturity to realize normally developed, good coloured flowers at the customers. Some iris cultivars however, need more than water alone; they never come to full bloom after dry transportation. Pulsing before storage with gibberellines, kinetin, saccharose and STS or a combination of these compounds improve the quality of the flowers. Dahlia flowers can be harvested in a less mature stage if a pulse treatment is given. The best results are obtained if a carnation-bud forcing mixture (Bendien) is given to the cut flowers. Thereafter, they should be transported in water. It is adviced to the consumer to use carnation Chrysal (half the prescribed concentration) to give perfect open flowers and to lengthen the vase-life. | |
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