condition mean min max 12pM Fe,Midday 93.5366 93.5366 93.5366 12pM Fe,Midnight 67.6434 60.987 74.2998 58pM Fe,Midday 58.8958 58.8958 58.8958 58pM Fe,Midnight 43.702371428571425 0.0 59.3724 233pM Fe,Midnight 30.003600000000002 27.2085 32.3541 1160pM Fe,Midday 42.884 36.9438 48.772 1160pM Fe,Midnight 24.289691666666666 17.7033 30.6456 High carbon,Dark 44.78062 16.0921 100.444 High carbon,Light 32.78165461538462 6.90486 71.863 Low carbon,Dark 48.1233 48.1233 48.1233 Phloroglucinol 21.8817 11.0243 29.9655 Silicon starvation,12h 30.6971 30.6971 30.6971