Transpiration of leaves with Cobra SMARTsense

Principle

The transpiration of the plants serves to transport water and nutrients from the roots to the leaves. In the experiment, the pressure drop is measured which is caused by the water release of the leaves into the environment and which ensures the necessary flow of water from the soil.

Benefits

• Especially understandable and didactically prepared description of the experiment (reference to everyday life etc.) including protocol questions
• Compact, easily transportable experimental set-up
• Suitable both as demo experiment and lab course experiment
• Flexible test execution thanks to wireless data transmission

Tasks

1. Measurement of transpiration under different environmental conditions and creation of pressure curves
2. Discussion of the differences between the different pressure curves

Learning objectives

• Transpiration
• Water and nutrient transport
• Wind effect
• Temperature influence
• Humidity influence
• Influence of the different leaf types