PSI FluorPen FP 110 Instruction Guide

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Fig. 5 Chlorophyll fluorescence.
FluorPen measures:
Ft - Instantaneous Chlorophyll Fluorescence
F
t
is equivalent to F
0
if the sample is dark-adapted.
QY - Quantum Yield
QY is a measure of the Photosystem II efficiency. QY is equivalent to F
v
/F
m
in dark-adapted samples and to F
v '
/F
m '
in light-adapted
samples.
OJIP - Chlorophyll Fluorescence Induction Kinetics
The OJIP curves show major changes that occur during exposure of a sample to high irradiance (see more in chapter 5.3.1).
NPQ - Non-Photochemical Quenching
The NPQ protocol is used to quantify photochemical and non-photochemical quenching. The measurement should be performed
with a dark-adapted sample. (see more in chapter 5.3.2).
LC - Light Curve
Photosystem II Quantum Yield estimated from fluorescence that is measured sequentially at several different light levels. More in
chapter 5.3.3.
PAR - Photosynthetically Active Radiation (PAR-FluorPen only)
Photosynthetically Active Radiation measured as Photosynthetic Photon Flux Density (PPFD).

PSI FluorPen FP 110 Specifications

General

Brand	PSI
Model	FluorPen FP 110
Category	Measuring Instruments
Language	English