condition mean min max 12pM Fe,Midday 29.9708 29.9708 29.9708 12pM Fe,Midnight 25.3427 23.4113 27.2741 58pM Fe,Midday 24.454 24.454 24.454 58pM Fe,Midnight 13.558485714285714 0.0 19.8127 233pM Fe,Midnight 12.6804 11.4835 14.8999 1160pM Fe,Midday 14.269854285714286 9.91398 19.2417 1160pM Fe,Midnight 13.296614166666666 9.02364 16.9018 High carbon,Dark 18.801578 8.09909 37.2366 High carbon,Light 14.03574923076923 6.55749 20.7949 Low carbon,Dark 17.3302 17.3302 17.3302 Phloroglucinol 34.60203333333333 28.5586 39.9256 Silicon starvation,12h 26.8132 26.8132 26.8132