Introduction To LI-COR 6800 Portable Photosynthesis System

INTRODUCTION:
• The LI-COR 6800 is a instrument used to measure gas
exchange in plants.specially Photosynthesis
• It is a Infrared Gas Analyzers (IRGA)which give accurate
measure of CO2 and H2O conc. in leaf gas exchange.
• The LI-COR 6800 provides complete, real-time information
about both the light reactions and the carbon reaction
of Photosynthesis.
• The instrument measures uptake of carbon dioxide (CO2)
and release of water vapor (H2O) by the leaf with high
precision infrared gas analyzers.

The gas exchange system
• The LI-6800 is an open gas exchange system, which means
that the measurements of photosynthesis and
transpiration are based on the differences in CO2 and
H2O in an air stream that is entering and exiting the
leaf.