condition mean min max 12pM Fe,Midday 31.2643 31.2643 31.2643 12pM Fe,Midnight 34.30925 34.1393 34.4792 58pM Fe,Midday 38.0381 38.0381 38.0381 58pM Fe,Midnight 30.74062857142857 0.0 41.9278 233pM Fe,Midnight 24.575466666666667 21.7755 28.5864 1160pM Fe,Midday 34.40074285714286 31.0909 35.6408 1160pM Fe,Midnight 31.64281666666667 11.7976 51.844 High carbon,Dark 56.56562 1.2388 117.204 High carbon,Light 48.59345 1.84057 99.4598 Low carbon,Dark 71.1246 71.1246 71.1246 Phloroglucinol 52.847366666666666 29.6488 68.1612 Silicon starvation,12h 40.0239 40.0239 40.0239