condition mean min max 12pM Fe,Midday 106.424 106.424 106.424 12pM Fe,Midnight 39.5055 39.2364 39.7746 58pM Fe,Midday 67.6842 67.6842 67.6842 58pM Fe,Midnight 27.544842857142857 0.0 36.8302 233pM Fe,Midnight 30.119066666666665 26.3225 37.1093 1160pM Fe,Midday 59.33522857142857 49.1409 79.7675 1160pM Fe,Midnight 18.480593333333335 9.85182 27.1624 High carbon,Dark 41.862006666666666 20.3247 56.6714 High carbon,Light 45.283443846153844 4.75001 89.6216 Low carbon,Dark 48.6382 48.6382 48.6382 Phloroglucinol 18.608333333333334 16.6721 21.0261 Silicon starvation,12h 175.98 175.98 175.98