condition mean min max 12pM Fe,Midday 17.1854 17.1854 17.1854 12pM Fe,Midnight 17.913 16.7105 19.1155 58pM Fe,Midday 13.223 13.223 13.223 58pM Fe,Midnight 21.221899999999998 14.0678 53.1234 233pM Fe,Midnight 13.481166666666667 12.5639 14.8218 1160pM Fe,Midday 14.820214285714286 11.0215 17.2981 1160pM Fe,Midnight 10.318241666666667 8.7704 11.2781 High carbon,Dark 10.590259333333334 6.86867 17.3159 High carbon,Light 8.458403153846154 0.809711 14.8884 Low carbon,Dark 8.74196 8.74196 8.74196 Phloroglucinol 17.5669 14.9827 21.2788 Silicon starvation,12h 23.1271 23.1271 23.1271