condition mean min max 12pM Fe,Midday 38.6712 38.6712 38.6712 12pM Fe,Midnight 17.54515 15.6583 19.432 58pM Fe,Midday 32.9462 32.9462 32.9462 58pM Fe,Midnight 10.2174 0.0 12.9303 233pM Fe,Midnight 6.903456666666667 6.15214 7.97091 1160pM Fe,Midday 31.298814285714286 28.724 33.1157 1160pM Fe,Midnight 1.7894916666666667 1.24308 2.43302 High carbon,Dark 9.186008 2.44877 17.6781 High carbon,Light 9.779719230769231 1.05615 25.6393 Low carbon,Dark 6.67319 6.67319 6.67319 Phloroglucinol 8.093226666666666 5.57559 10.9584 Silicon starvation,12h 21.769 21.769 21.769