Plant Research Portable Photosynthesis System ACCUPAR LP-80 Canopy Interception and Leaf Area Index SC-1 Leaf Porometer Stomatal Conductance CO2 Gas Analyzer CO2 / H2O Gas Analyzers Continuous Excitation or Prompt Chlorophyll Fluorimeters Pulse-Modulated Chlorophyll Fluorometers Plant Water Potential System/Pressure Bomb Chlorophyll Meter