Gfs-3000 | Manual
They recommend using black felt or a foil bag over the leaf clip if you need true nighttime respiration. The internal cuvette still leaks a few photons (<1 µmol m⁻² s⁻¹), which is enough to suppress dark respiration by 10-15%.
Confessions of a Photosynthesis Newbie: What the GFS-3000 Manual Actually Taught Me (After Reading It Twice) gfs-3000 manual
If you’ve ever unboxed a GFS-3000, you know the feeling. You look at this compact, weatherproof case, pop it open, and see a tangle of hoses, cuvettes, IRGA analyzers, and a touchscreen that looks like it belongs on a spaceship. They recommend using black felt or a foil
