Table 2.
I50 values for different photosynthetic herbicides determined from PSII inhibition experiments through DPIP photoreduction (Figure 2A) and OJIP fluorescence transient (Figure 2B) assays. The I50 values and the corresponding standard errors were computed by fitting the experimental data using the Langmuir adsorption isotherm according to [35].
| Herbicide | DPIP Photoreduction | OJIP Fluorescence |
|---|---|---|
| I50 (M) | I50 (M) | |
| Diuron | 7.18 × 10−8 ± 1.53 × 10−9 | 8.02 × 10−8 ± 5.67 × 10−10 |
| Terbuthylazine | 1.10 × 10−7 ± 2.75 × 10−9 | 1.39 × 10−7 ± 1.60 × 10−9 |
| Bentazon | 6.16 × 10−6 ± 3.89 × 10−7 | 6.70 × 10−6 ± 8.30 × 10−8 |
| Metribuzin | 1.56 × 10−7 ± 5.95 × 10−9 | 1.24 × 10−7 ± 1.13 × 10−9 |
| Metobromuron | 1.53 × 10−6 ± 7.29 × 10−8 | 1.02 × 10−6 ± 1.03 × 10−8 |