TRANSPORT AND CONDITIONING OF CUT FLOWERS

A.H. Halevy, S. Mayak
Temperature of flowers in cardboard boxes changes very quickly with the change of outside temperatures. High temperatures increase water deficit of flowers and reduce their useful vase life. The resaturation ability of the flowers after shipment is also reduced, preventing proper flower opening and petal expansion. These deleterious effects can be reduced by adding ice to the shipping boxes and by pre-shipment conditioning of the flowers with proper solutions. The components of the conditioning solutions should be adapted for each flower (and sometimes for different cultivars).Water quality is also very important for increasing the efficiency of the conditioning treatment. Another approach is impregnating the stem bases of flowers with a silver salt solution, which was found effective for carnations(but not roses). Water balance of roses was improved by pretreatment of flowers with abscisic acid inducing closure of stomata. Pretreatment with growth retardants or with cytokinins may also be beneficial by delaying senescence of the cut flowers and increasing their resistance to stress conditions.

The recent development of methods for the opening of flowers cut at an early stage (carnations, chrysanthemums, gladioli) may permit new methods of transport of flowers. Flowers cut at the bud stage could be shipped by refrigerated container boats directly to the wholesaler, and then opened in the proper solutions.

Halevy, A.H. and Mayak, S. (1974). TRANSPORT AND CONDITIONING OF CUT FLOWERS. Acta Hortic. 43, 291-306
DOI: 10.17660/ActaHortic.1974.43.32
https://doi.org/10.17660/ActaHortic.1974.43.32

Acta Horticulturae