condition mean min max 12pM Fe,Midday 57.7434 57.7434 57.7434 12pM Fe,Midnight 49.7576 48.7036 50.8116 58pM Fe,Midday 53.3721 53.3721 53.3721 58pM Fe,Midnight 50.213814285714285 40.7442 87.1634 233pM Fe,Midnight 43.49386666666667 42.2547 44.4021 1160pM Fe,Midday 42.08244285714286 38.8048 46.1668 1160pM Fe,Midnight 27.621133333333333 17.8399 43.6185 High carbon,Dark 35.59457333333333 14.7675 50.3961 High carbon,Light 30.036176923076923 14.7801 43.2787 Low carbon,Dark 26.695 26.695 26.695 Phloroglucinol 24.222566666666665 15.5017 36.5007 Silicon starvation,12h 53.2224 53.2224 53.2224