condition mean min max 12pM Fe,Midday 67.9187 67.9187 67.9187 12pM Fe,Midnight 66.8879 62.036 71.7398 58pM Fe,Midday 56.5392 56.5392 56.5392 58pM Fe,Midnight 53.90895714285714 39.2862 79.4217 233pM Fe,Midnight 27.780866666666668 24.8975 30.0536 1160pM Fe,Midday 49.419242857142855 40.4777 54.2887 1160pM Fe,Midnight 38.1345 19.4372 51.73 High carbon,Dark 38.741659999999996 27.6974 58.2128 High carbon,Light 44.69984615384615 16.8356 67.5502 Low carbon,Dark 38.4827 38.4827 38.4827 Phloroglucinol 58.3505 54.3807 61.4595 Silicon starvation,12h 75.1263 75.1263 75.1263