condition mean min max 12pM Fe,Midday 52.2547 52.2547 52.2547 12pM Fe,Midnight 38.88575 38.62 39.1515 58pM Fe,Midday 39.0939 39.0939 39.0939 58pM Fe,Midnight 32.94632857142857 24.6148 52.1793 233pM Fe,Midnight 28.882733333333334 28.1159 29.5548 1160pM Fe,Midday 23.012185714285714 21.9665 24.4149 1160pM Fe,Midnight 34.25570833333333 18.2621 46.7296 High carbon,Dark 27.723100666666667 5.26711 58.5633 High carbon,Light 22.371084615384614 3.62934 41.531 Low carbon,Dark 31.4842 31.4842 31.4842 Phloroglucinol 17.4189 15.4523 20.1006 Silicon starvation,12h 45.6826 45.6826 45.6826