condition mean min max 12pM Fe,Midday 65.8766 65.8766 65.8766 12pM Fe,Midnight 49.6943 47.5757 51.8129 58pM Fe,Midday 38.5366 38.5366 38.5366 58pM Fe,Midnight 34.4584 0.0 45.1786 233pM Fe,Midnight 33.25486666666667 32.4425 34.4162 1160pM Fe,Midday 34.825871428571425 31.21 38.8533 1160pM Fe,Midnight 22.069825 15.1027 27.8836 High carbon,Dark 39.76135266666667 8.12079 66.483 High carbon,Light 31.16096076923077 7.45439 55.8866 Low carbon,Dark 32.7088 32.7088 32.7088 Phloroglucinol 17.142466666666667 15.9653 18.9501 Silicon starvation,12h 56.4308 56.4308 56.4308