A Miniature Bioassay for Testing the Acute Phytotoxicity of Photosystem II Herbicides on Seagrass
Fig 3
Dose-response curves for Diuron and H. ovalis using different PAM fluorometers.
Inhibition (%, relative to solvent control) of A) effective quantum yield (∆F/Fm’) and B) maximum quantum yield (Fv/Fm) of the single leaf, multi-well plate sample orientation. Results from both I-PAM and Mini-PAM following a 24 h exposure period to a series of Diuron concentrations at 100 μmol photons m-2s-1. Mean ± SE of nine replicate leaves. Curves exhibited r2 between 0.98 and 0.99.