Measurement of whole-plant gas exchange (photosynthesis, transpiration and stomatal conductance) in controlled environmental conditions for small plants like A.thaliana.

System allows for rapid modification and application of:

• CO2 concentration - addition or removal

• Relative air humidity (VPD)

• Ozone

• Light intensity and spectra

• Exogenous spray treatment of various substances (hormones, chemicals, nanoparticles etc.)

Stimuli ranges (systemic)

• Relative air humidity: 30-80%

• Air temperature 5-40° C

Stimuli ranges (per chamber)

• CO2 concentration: 5-1000 ppm

• Ozone concentration: 10-1500 ppb

• White light intensity: 0-1000 µmol m-2s-1

• Red light intensity: 0-1200 µmol m-2s-1

• Blue light intensity: 0-1800 µmol m-2s-1

• Green light intensity: 0-1000 µmol m-2s-1

Cuvette dimensions

• Width: 77 mm

• Height: 36 mm

• Volume: 167.64 cm3

Data sampling rate

• 1 min per cuvette: 30 sec reference + 30 sec sample

• Air flow rate: 20ml/s

Measurement accuracy

• CO2 concentration: +- 0.1 ppm

• H2O concentration: +- 0.1 ppm

• Air temperature: +- 0.1 C

• Ozone concentration: +- 10 ppb

• Flow meter: 0.5 ml/s

System dimensions

• 2×1 metres

System requires access to building ventilation