The effect of sucrose, cytokinins, and selected inhibitors of ethylene biosynthesis and action on the longevity
of cut ixia flowers
Maciej Brzezina*, Zdzisław Piskornik*, Maria Piskornik**
**Department of Plant Physiology
**Department of Ornamental Plants
**Faculty of Horticulture, Agricultural University
**29 Listopada 54, 31-425 Kraków, Poland
Cut ixia flowers (Ixia hybrida), similarly as those of many other
bulbous plants, have a very short vase life. However, 24-hour pulsing with
sucrose solutions (1-6%) reduced fresh weight decrease and extended their
life by about one day. However, 24-hour treatment with inhibitors of
ethylene biosynthesis and/or action did not significantly prolong their life.
The ethylene production and ACC oxidase activity in vivo in different parts of flower and
development stages were also measured. They produced small amounts of
ethylene but showed high ACC oxidase activity in vivo, especially
at the bud stage.
Brzezina M., Piskornik Z., Piskornik M., 1994. The effect of sucrose, cytokinins, and
selected inhibitors of ethylene biosynthesis and action on the longevity
of cut ixia flowers. Folia Horticulturae VI/2: 63-70.