Measured Parameters:

• PAR
  Photosynthetically Active Radiation measured as Photosynthetic Photon Flux Density (PPFD).
• F_T
  Continuous fluorescence yield in non-actinic light. F_Tis equivalent to F₀ if the leaf sample is dark-adapted.
• QY
  Photosystem II Quantum Yield. QY is equivalent to F_V/F_M in the dark-adapted samples and to F_{V ‘} /F_{M ‘} in the light-adapted samples.
• OJIP Analysis
  Application of chlorophyll fluorescence fast-transient analysis (OJIP) is a simple and non-invasive tool to monitor chloroplast function. Provided OJIP analysis is used as sensitive and reliable fast test for the functionality and vitality of photosynthetic system.
• NPQ – Non-Photochemical Quenching
  Provided are two predefined NPQ protocols differing in the duration of light exposure and dark recovery phase as well as in the number of intervals between the pulses. It is typically used for quantification of photochemical and non-photochemical quenching in dark-adapted samples.
• Light Curve
  There are three predefined Light Curve protocols based on pulse modulated fluorometry differing in number and duration of single light phases and light intensities. Light Curve protocols provide successive measurements of the sample photosynthesis under various light intensities of continuous illumination relating the rate of photosynthesis to photon flux density.