condition mean min max 12pM Fe,Midday 13.7259 13.7259 13.7259 12pM Fe,Midnight 16.888199999999998 14.6404 19.136 58pM Fe,Midday 14.948 14.948 14.948 58pM Fe,Midnight 10.077601428571429 0.0 15.4463 233pM Fe,Midnight 18.615566666666666 16.0448 20.603 1160pM Fe,Midday 6.5959514285714285 3.04441 9.50908 1160pM Fe,Midnight 9.493861666666668 6.83004 14.8564 High carbon,Dark 7.960722 1.35699 19.9906 High carbon,Light 5.522193846153846 0.0 12.5574 Low carbon,Dark 8.57846 8.57846 8.57846 Phloroglucinol 6.03032 3.78261 7.91275 Silicon starvation,12h 29.4361 29.4361 29.4361