condition mean min max 12pM Fe,Midday 38.3982 38.3982 38.3982 12pM Fe,Midnight 37.555 34.8885 40.2215 58pM Fe,Midday 25.0353 25.0353 25.0353 58pM Fe,Midnight 33.13217142857143 0.0 42.3015 233pM Fe,Midnight 36.459833333333336 34.5499 39.3374 1160pM Fe,Midday 26.120957142857144 21.1589 30.0772 1160pM Fe,Midnight 34.294466666666665 26.6664 44.7711 High carbon,Dark 42.326698 6.35177 94.1707 High carbon,Light 39.23730384615385 2.30914 102.39 Low carbon,Dark 26.9286 26.9286 26.9286 Phloroglucinol 43.221133333333334 39.1034 46.0964 Silicon starvation,12h 61.4026 61.4026 61.4026