condition mean min max 12pM Fe,Midday 159.668 159.668 159.668 12pM Fe,Midnight 107.975 103.37 112.58 58pM Fe,Midday 107.447 107.447 107.447 58pM Fe,Midnight 72.6867 0.0 90.7887 233pM Fe,Midnight 49.55103333333333 42.1215 56.6368 1160pM Fe,Midday 91.3988 85.3323 100.426 1160pM Fe,Midnight 73.77844166666667 46.6109 96.5719 High carbon,Dark 68.76666 18.4269 103.081 High carbon,Light 61.34387692307692 34.0707 81.8531 Low carbon,Dark 44.082 44.082 44.082 Phloroglucinol 4.133956666666666 2.94015 4.92862 Silicon starvation,12h 42.042 42.042 42.042