ISHS Acta Horticulturae 405: VI International Symposium on Postharvest Physiology of Ornamental Plants
PHYSIOLOGICAL AND BIOCHEMICAL CHANGES OF CUT GERBERA INFLORESCENCES DURING VASE LIFE |
| Authors: | A. Amariutei, C. Alexe, I. Burzo |
| Abstract:
Some physiological and biochemical changes of cut Gerbera inflorescences (Gerbera jamesoni cv. Red Marleen) were evaluated during vase life in distilled water and preservative solution (2.5% sucrose + 150 ppm 8-HQS + 200 ppm KCI). Ligulae cell membrane permeability measured as electrolyte leakage from ligulae was 1.4 times greater in inflorescences held in distilled water than in those held in preservative solution. Conductivity of the preservative solution diminished during the first day of vase life and then increased. Conductivity of the control (distilled water) increased by 334 microsiemens on the 7-th day of vase life compared to that observed on the first day. The rate of respiration, fresh weight and vase life of inflorescences held in preservative solution were greater than of those held in distilled water. The colour of ligulae intensified during vase life due to an increase in the content of anthocyanin and carotenoid pigments. After 5 days the colour intensity was greater in inflorescences held in water than in those held in preservative solution. | |
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