| Abstract: | A leaf chamber is described which allows continuous measurementof transpiration from an attached leaf while leaf temperatureis controlled independently of air temperature. Leaf temperaturecan be varied from approximately 3 °C below air temperatureto 12 °C above air temperature while air temperature remainsrelatively constant (±2 °C). Leaf temperature canbe varied rapidly (by up to 12 °C in 30 s) in order to simulatethe rapid, short-term temperature fluctuations to which leavesare frequently exposed in the field. The chamber operates overa wide range of conditions of visible and total radiation, ofair and leaf temperatures, and of ambient carbon dioxide concentrationand water vapour density |
