Plant material and growing conditions.
Tomato plants (Solanum lycopersicum var. Rhinelands Rhune) were
grown from seed in glasshouse facilities at the University of Tasmania,
Australia. Plants experienced average day/night temperatures of 23/15
°C, an 18-hour photoperiod to ensure flowering, a relative humidity of
approximately 40%, and were watered to field capacity daily to avoid
drought stress. Seeds were germinated in punnets of fine
pasteurised soil and then transferred to 2-l pots filled with potting
mix (medium 7:4 mix of composted fine pine bark and coarse washed river
sand). Plants were around 3 months old at commencement of experiments.