ISHS Acta Horticulturae 181: III International Symposium on Postharvest Physiology of Ornamentals
CUT FLOWER LONGEVITY AS AFFECTED BY CHEMICAL PRE-TREATMENT |
| Authors: | A.R.E. Awad, A. Meawad, A. Kamel Dawh, M. El-Saka |
| Abstract:
The longevity of Calendula, Zinnia and Antirrhinum was increased after dippingin 1000 ppm AgNO3 up to 40 minutes. Lower concentrations down to 20 ppm were effective also. Placing flowers in sucrose solution up to 10% after AgNO3 dipping enhanced the longevity of Calendula and Zinnia. Placing flowers in sucrose after this treatment was not very effective. Silver thiosulphate at 4 mM for 80 minutes (Sweet Pea) or 8 minutes (Delphinium) increased their longevity. Additionally placing in 5% sucrose + 200 ppm Physan-20 overnight slightly increased Delphinium longevity. Using sucrose up to 7% combined with silver thiosulphate or silver nitrate enhanced the longevity of Sweet Pea. | |
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