Table 2. Diuron concentrations (g l-1) that inhibit 50% (IC50) and 10% (IC10) of H. ovalis leaf quantum yields at different irradiance levels.
∆F/F m’ | Fv/Fm | |||||||
---|---|---|---|---|---|---|---|---|
Irradiance | IC50 | 95% CV | IC10 | 95% CV | IC50 | 95% CV | IC10 | 95% CV |
40 | 3.3a | 2.4–4.5 | 0.97 | 0.57–1.53 | 5.4a | 3.9–8.0 | 1.23 | 0.67–1.97 |
100 | 3.5a | 2.5–4.3 | 0.78 | 0.46–1.27 | 4.3a | 3.1–6.3 | 0.66 | 0.33–1.14 |
200 | 2.2a | 1.5–3.5 | 0.32 | 0.13–0.64 | 5.3a | 3.1–9.8 | 0.55 | 0.19–1.22 |
400 | 2.3a | 1.2–4.6 | 0.25 | 0.07–1.03 | 2.7b | 1.3–4.4 | 0.18 | 0.06–0.49 |
Yield inhibitions were calculated against mean yield values for solvent controls at the corresponding irradiance (μmol photons m-2 s-1). Different superscripted letters indicate statistically different IC50 values (p < 0.05).