Abstract
The growth of Chrysanthemum and Ficus plants in aero-hydroponics was reduced as the dissolved O 2 concentration decreased; however, both species showed some adaptation to prolonged hypoxia in growth chamber experiments. Leaf number and plant height of Ficus plants grown in University of California (UC) mix or in water with an O 2 concentration of 2 mg l −1 were lower than those in plants grown in O 2-saturated water. Mathematical models were used to predict the time needed by Ficus plants growing in UC mix or aero-hydroponics to reach a particular leaf number. Ficus plants growing in O 2-saturated water in aero-hydroponics produced leaves at the fastest rate.
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