condition mean min max 12pM Fe,Midday 21.786 21.786 21.786 12pM Fe,Midnight 20.2018 18.4324 21.9712 58pM Fe,Midday 23.198 23.198 23.198 58pM Fe,Midnight 8.735734285714287 0.0 12.7984 233pM Fe,Midnight 9.865656666666666 7.32477 11.924 1160pM Fe,Midday 11.471872857142857 6.96901 13.6168 1160pM Fe,Midnight 7.232234166666666 3.14625 13.6729 High carbon,Dark 9.864172 2.85436 20.2663 High carbon,Light 10.49580923076923 1.55396 23.0428 Low carbon,Dark 8.40033 8.40033 8.40033 Phloroglucinol 3.792726666666667 2.10105 6.03775 Silicon starvation,12h 14.4965 14.4965 14.4965