condition mean min max 12pM Fe,Midday 55.5583 55.5583 55.5583 12pM Fe,Midnight 56.1969 51.857 60.5368 58pM Fe,Midday 45.6491 45.6491 45.6491 58pM Fe,Midnight 50.50087142857143 41.9857 61.3361 233pM Fe,Midnight 68.78146666666666 67.6254 70.2712 1160pM Fe,Midday 36.306085714285715 32.2928 41.2636 1160pM Fe,Midnight 48.33719166666667 35.7705 61.9205 High carbon,Dark 77.20862666666667 64.0995 89.8108 High carbon,Light 65.63207692307692 27.5792 90.9252 Low carbon,Dark 58.3176 58.3176 58.3176 Phloroglucinol 58.1475 36.7613 72.4396 Silicon starvation,12h 91.495 91.495 91.495