condition mean min max 12pM Fe,Midday 40.2099 40.2099 40.2099 12pM Fe,Midnight 25.897 24.2935 27.5005 58pM Fe,Midday 38.2904 38.2904 38.2904 58pM Fe,Midnight 54.399428571428565 14.284 272.268 233pM Fe,Midnight 17.161433333333335 16.8547 17.4583 1160pM Fe,Midday 21.261185714285716 16.8136 24.9952 1160pM Fe,Midnight 12.983895 7.71581 18.1647 High carbon,Dark 16.375248666666668 4.11031 26.4669 High carbon,Light 18.65905846153846 3.15628 45.6883 Low carbon,Dark 27.3804 27.3804 27.3804 Phloroglucinol 18.434733333333334 16.7977 21.5477 Silicon starvation,12h 32.0294 32.0294 32.0294