condition mean min max 12pM Fe,Midday 81.9237 81.9237 81.9237 12pM Fe,Midnight 66.56514999999999 65.5958 67.5345 58pM Fe,Midday 82.2142 82.2142 82.2142 58pM Fe,Midnight 68.5874 0.0 96.7122 233pM Fe,Midnight 65.95653333333334 58.1983 70.3075 1160pM Fe,Midday 37.65875714285714 29.8548 53.973 1160pM Fe,Midnight 100.62081666666667 67.5464 144.992 High carbon,Dark 142.72306 72.6369 216.313 High carbon,Light 141.76403076923077 11.2119 239.342 Low carbon,Dark 51.9504 51.9504 51.9504 Phloroglucinol 53.3218 34.7397 62.6214 Silicon starvation,12h 195.543 195.543 195.543