Apple
ValidatedPerformance
Excellent. Recommended for commercial use. Sensor data matches the pressure chamber. Thoroughly validated and used commercially.
Installation Tips
- Very easy install, apple xylem is usually uniform and healthy.
- Ensure the bubble wrap insulation is loose so that excess moisture can evaporate, particularly important in wetter climates.
- Sensors may freeze during the winter if temperatures go below 0 °C
- Big or small sensors can work well, depending on the trunk diameter.
Known Issues
- Main issue seen is sensors reading 0 when trunk is wet. Attach insulation loosely to allow evaporation.
Data & Validation
Apple sensor data validation
References
- Guidelines: Not yet established. Recommend irrigation by SWP trend.
- Sample guidelines for apple from Washington State University
- Microtensiometers: a new tool to monitor your apple trees for deciding when and how much to irrigate
- Trunk Water Potential Measured with Microtensiometers for Managing Water Stress in “Gala” Apple Trees