condition mean min max 12pM Fe,Midday 82.942 82.942 82.942 12pM Fe,Midnight 91.09805 87.0805 95.1156 58pM Fe,Midday 51.4204 51.4204 51.4204 58pM Fe,Midnight 72.35922857142857 59.1159 93.9005 233pM Fe,Midnight 7.656289999999999 6.41559 8.52985 1160pM Fe,Midday 39.95784285714286 33.0276 45.2746 1160pM Fe,Midnight 11.129039166666667 5.0907 22.5976 High carbon,Dark 2.4168776666666667 0.418655 4.29386 High carbon,Light 2.020691153846154 0.0 5.38556 Low carbon,Dark 3.0046 3.0046 3.0046 Phloroglucinol 2.52551 1.98625 3.4193 Silicon starvation,12h 0.751455 0.751455 0.751455