condition mean min max 12pM Fe,Midday 77.4122 77.4122 77.4122 12pM Fe,Midnight 64.0332 62.5287 65.5377 58pM Fe,Midday 58.0792 58.0792 58.0792 58pM Fe,Midnight 58.8906 35.1534 178.117 233pM Fe,Midnight 29.650533333333335 28.5529 30.8918 1160pM Fe,Midday 45.81784285714286 36.1462 49.2857 1160pM Fe,Midnight 26.81435 13.0774 42.0951 High carbon,Dark 25.73552133333333 8.74876 54.5759 High carbon,Light 21.977744615384616 1.47487 51.4696 Low carbon,Dark 16.2838 16.2838 16.2838 Phloroglucinol 33.9396 23.7048 44.3776 Silicon starvation,12h 46.7534 46.7534 46.7534