condition mean min max 12pM Fe,Midday 17.237 17.237 17.237 12pM Fe,Midnight 12.9286 12.7183 13.1389 58pM Fe,Midday 12.0994 12.0994 12.0994 58pM Fe,Midnight 13.014047142857143 8.70782 34.2319 233pM Fe,Midnight 6.601936666666667 6.3872 7.0165 1160pM Fe,Midday 10.477294285714287 9.26249 12.6594 1160pM Fe,Midnight 5.02793 3.76532 7.23526 High carbon,Dark 5.676441333333333 1.20583 8.97021 High carbon,Light 4.908574 0.680288 11.9608 Low carbon,Dark 4.69432 4.69432 4.69432 Phloroglucinol 9.644636666666667 8.50815 11.4155 Silicon starvation,12h 10.0265 10.0265 10.0265