condition mean min max 12pM Fe,Midday 65.5559 65.5559 65.5559 12pM Fe,Midnight 42.4354 40.0854 44.7854 58pM Fe,Midday 61.1075 61.1075 61.1075 58pM Fe,Midnight 24.355014285714287 0.0 31.6885 233pM Fe,Midnight 22.086533333333332 21.3552 22.5364 1160pM Fe,Midday 37.97432857142857 34.7891 40.2989 1160pM Fe,Midnight 10.652965833333333 8.25588 14.8133 High carbon,Dark 15.510067333333334 2.54548 28.3776 High carbon,Light 8.96146 1.71909 17.541 Low carbon,Dark 13.7606 13.7606 13.7606 Phloroglucinol 17.508233333333333 14.5469 20.769 Silicon starvation,12h 37.7977 37.7977 37.7977