condition mean min max 12pM Fe,Midday 26.0154 26.0154 26.0154 12pM Fe,Midnight 40.6124 39.7348 41.49 58pM Fe,Midday 17.136 17.136 17.136 58pM Fe,Midnight 39.81767142857143 0.0 57.5757 233pM Fe,Midnight 34.3732 32.4549 35.6288 1160pM Fe,Midday 23.497914285714288 21.3275 25.8654 1160pM Fe,Midnight 38.441916666666664 23.2526 64.2495 High carbon,Dark 25.993333333333332 17.8057 34.5788 High carbon,Light 22.82259923076923 7.22886 49.5183 Low carbon,Dark 13.6411 13.6411 13.6411 Phloroglucinol 12.297586666666668 7.96866 16.3652 Silicon starvation,12h 25.8679 25.8679 25.8679