condition mean min max 12pM Fe,Midday 57.7646 57.7646 57.7646 12pM Fe,Midnight 54.84895 52.1739 57.524 58pM Fe,Midday 54.0701 54.0701 54.0701 58pM Fe,Midnight 48.32962857142857 44.4978 59.4056 233pM Fe,Midnight 26.864533333333334 26.2607 27.21 1160pM Fe,Midday 36.04524285714286 33.8633 38.9637 1160pM Fe,Midnight 21.695425 18.3596 23.9591 High carbon,Dark 38.35956 20.6198 59.2569 High carbon,Light 31.683736923076925 6.36192 59.2698 Low carbon,Dark 25.9781 25.9781 25.9781 Phloroglucinol 39.37453333333333 31.5195 49.9433 Silicon starvation,12h 16.7659 16.7659 16.7659