condition mean min max 12pM Fe,Midday 53.173 53.173 53.173 12pM Fe,Midnight 45.2581 40.8219 49.6943 58pM Fe,Midday 39.4135 39.4135 39.4135 58pM Fe,Midnight 26.9877 0.0 34.4127 233pM Fe,Midnight 27.042366666666666 26.5765 27.851 1160pM Fe,Midday 35.571757142857145 28.679 43.1658 1160pM Fe,Midnight 31.950741666666666 12.5137 47.4165 High carbon,Dark 33.25918 18.2166 59.5305 High carbon,Light 34.3792 4.9168 63.2215 Low carbon,Dark 28.9522 28.9522 28.9522 Phloroglucinol 49.6616 46.2287 55.7627 Silicon starvation,12h 54.9636 54.9636 54.9636