condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.381411 0.378813 0.384009 58pM Fe,Midday 0.653466 0.653466 0.653466 58pM Fe,Midnight 0.3443764285714286 0.0 0.93496 233pM Fe,Midnight 1.1531583333333333 0.935215 1.37976 1160pM Fe,Midday 0.1629742857142857 0.0 0.311773 1160pM Fe,Midnight 0.41636158333333334 0.0 1.23913 High carbon,Dark 5.200513333333333 0.0 21.8965 High carbon,Light 1.295314923076923 0.0 3.76427 Low carbon,Dark 3.00012 3.00012 3.00012 Phloroglucinol 2.856986666666667 1.61969 4.43554 Silicon starvation,12h 0.630282 0.630282 0.630282