condition mean min max 12pM Fe,Midday 32.5567 32.5567 32.5567 12pM Fe,Midnight 21.72685 21.688 21.7657 58pM Fe,Midday 44.1469 44.1469 44.1469 58pM Fe,Midnight 31.095257142857143 0.0 42.9726 233pM Fe,Midnight 30.312966666666668 30.0106 30.6763 1160pM Fe,Midday 27.272357142857143 24.3538 30.257 1160pM Fe,Midnight 38.64308333333334 31.9246 44.5217 High carbon,Dark 39.116746666666664 3.0156 64.3036 High carbon,Light 37.352623076923074 14.2349 65.2921 Low carbon,Dark 35.3835 35.3835 35.3835 Phloroglucinol 18.9469 11.2271 30.2467 Silicon starvation,12h 209.174 209.174 209.174