1. INTERNATIONAL Solutions for soil, plant & meteorology www.ictinternational.com Continuous Data Logging Instruments For Drought Experiments INTERNATIONAL

2. Solutions for soil, plant & meteorology www.ictinternational.com SFM-1 Research Question: What is the effect of drought on total plant water use over a growing season? Instrument: SFM-1; Sap Flow Meter Variable Outputs: Cumulative Transpiration (Litres) or Cumulative Sap Flow (Litres) For more information see SFM-1, Small Stems or Hydraulic Redistribution Cumulative Sap Flow (Litres) Time – One Month May 1 st May 31 st

3. INTERNATIONAL Solutions for soil, plant & meteorology www.ictinternational.com SFM-1 Research Question: What is the effect of extreme Temperature on daily plant water use? Instrument: SFM-1; Sap Flow Meter Variable Outputs: Sap Velocity (cm/hr) Daily Sap Volume (Litres per Day) Warm Temp (28°C) Daily Sap Volume = 24L Extreme Temp (41°C) Daily Sap Volume = 17L Data & Graph: A. Doronila For more information see SFM-1, Small Stems or Hydraulic Redistribution

4. INTERNATIONAL Solutions for soil, plant & meteorology www.ictinternational.com SFM-HFD Research Question: Can plants redistribute water from wet roots to dry roots across the stem? Instrument: SFM-HFD; Heat Field Deformation Variable Outputs: Sap Velocity (cm/hr) Sap Flux Density (cm 3 /cm 2 /hr) For more information see Nadezhdina et al, 2009, New Phytologist, 184, 932-43.

5. INTERNATIONAL Solutions for soil, plant & meteorology www.ictinternational.com PSY-1 Research Question: What is the effect of drought on stem water potential? Instrument: PSY-1; Stem Psychrometer Variable Outputs: Stem Water Potential (Ψ, MPa) Example 5 day dataset of increasing drought; Logging Interval: 30min; Day Night Increasing drought See - Downey & Arias 2011 Water Potential of Coffee. Technical note

6. INTERNATIONAL Solutions for soil, plant & meteorology www.ictinternational.com DRL26 Research Question: What is the effect of drought on daily stem shrinkage? Instrument: DRL26; Logging Band Dendrometer Variable Outputs: Maximum Daily Shrinkage (MDS, μm)Stem Increment (Growth; μm) MDS = Maximum Daily Stem Diameter minus Minimum Daily Stem Diameter For more information see DRL26 Brochure and DRL26 Applications

7. INTERNATIONAL Solutions for soil, plant & meteorology www.ictinternational.com TSM-4000L Research Question: Does canopy temperature Increase under drought due to less cooling from transpiration? Instrument: TSM-4000L; Infrared Thermometry Variable Outputs: Canopy Temperature (T C ) with reference to air temperature (T a ) For more information see TSM-4000L Brochure

8. INTERNATIONAL Solutions for soil, plant & meteorology www.ictinternational.com SMM-MP406 Research Question: Following a rain event, what is the nature of the wetting front in a 2m soil profile? Instrument: SMM-MP406; Standing Wave Principle Variable Outputs: Volumetric Soil Water Content (%) Figure. Drainage under cotton, Biloela, Queensland, Australia. Cotton root depth is to 70cm however data shows drainage below root zone. Therefore water is being wasted. For more information see SMM-MP406 Brochure

9. INTERNATIONAL Solutions for soil, plant & meteorology www.ictinternational.com ICT International Pty Ltd Solutions for soil, plant & meterology www.ictinternational.com sales@international.com.au Phone: 61 2 6772 6770 Fax: 61 2 6772 7616 PO Box 503, Armidale, NSW, Australia, 2350 INTERNATIONAL