Photosynthetica 2009, 47(1):121-124 | DOI: 10.1007/s11099-009-0018-3

Chamber response time: A neglected issue in gas exchange measurements

I. Weiss1, Y. Mizrahi1, E. Raveh2,*
1 Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
2 Gilat Research Center, Agricultural Research Organization, Ministry of Agriculture, Negev, Israel

When the dimensions of standard commercial chambers for measuring gas exchange cannot accommodate the object being measured, scientists construct their own chambers. The time needed to reach chamber steady state (chamber response time) depends on net system volume (e.g. chamber and tubing volume) and airflow. Unfortunately, some authors take chamber response time into consideration while others ignore it. We present the formula for calculating chamber response time.

Additional key words: chamber steady state; Hylocereus; infrared gas analyser; laboratory-made chambers; net CO2 uptake; open system; self-clamping chambers

Received: May 6, 2008; Accepted: August 26, 2008; Published: March 1, 2009  Show citation

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Weiss, I., Mizrahi, Y., & Raveh, E. (2009). Chamber response time: A neglected issue in gas exchange measurements. Photosynthetica, 47(1), 121-124. doi: 10.1007/s11099-009-0018-3
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