condition mean min max 12pM Fe,Midday 20.4815 20.4815 20.4815 12pM Fe,Midnight 22.03835 21.7413 22.3354 58pM Fe,Midday 16.1093 16.1093 16.1093 58pM Fe,Midnight 14.365628571428571 0.0 18.0632 233pM Fe,Midnight 13.663666666666666 13.4188 13.8426 1160pM Fe,Midday 11.490457142857142 10.4013 12.4702 1160pM Fe,Midnight 8.013978333333334 4.39595 10.9071 High carbon,Dark 11.887791333333332 4.83429 19.6482 High carbon,Light 11.396314615384616 1.82829 22.7806 Low carbon,Dark 9.47603 9.47603 9.47603 Phloroglucinol 17.608866666666668 15.2868 21.3187 Silicon starvation,12h 32.775 32.775 32.775