Table 1.
Concentrations of nitrate, phosphate and pH levels in BG11 medium and light intensities used in the lab-based experiment with treatments consisting of all combinations of variables.
| Experimental Concentration Levelsa |
Treatment |
Season of simulation for light intensity | |||
|---|---|---|---|---|---|
| Nitrate (μM) | Phosphate (mM) | pH | Light intensity (μmole/m2/s; W/m2) | ||
| High | 17.6 | 30 | 10 |
970 – 1900; 210.9–413 |
Spring and summer |
| Medium | 0.176 | 3 | 8 |
430 – 970; 93.5–210.9 |
Fall and winter |
| Low | 0.0176 | 0.3 | 6 |
51 – 430; 11.1–93.5 |
Winter and normal overcast days |
| Standardb | 17.6 | 229 | 7 | NAc | NAc |
a
For a description of the controls per experimental treatment, please refer to the experimental set up sub-section.
b
Standard concentration of BG11 medium (Rippka, 1988) for comparison. pH was adjusted using 0.1 M NaOH.
c
Not applicable.