condition mean min max 12pM Fe,Midday 91.4662 91.4662 91.4662 12pM Fe,Midnight 66.405 60.5043 72.3057 58pM Fe,Midday 91.6906 91.6906 91.6906 58pM Fe,Midnight 40.89702857142857 0.0 52.6607 233pM Fe,Midnight 39.948 36.2447 42.2711 1160pM Fe,Midday 66.77585714285715 60.2048 75.9922 1160pM Fe,Midnight 34.656425 31.6032 38.0556 High carbon,Dark 63.68476 36.0126 89.5076 High carbon,Light 53.96569230769231 43.964 63.1535 Low carbon,Dark 46.0939 46.0939 46.0939 Phloroglucinol 295.747 202.724 346.249 Silicon starvation,12h 56.8997 56.8997 56.8997