condition mean min max 12pM Fe,Midday 23.7702 23.7702 23.7702 12pM Fe,Midnight 16.965899999999998 16.4316 17.5002 58pM Fe,Midday 21.5279 21.5279 21.5279 58pM Fe,Midnight 16.516414285714287 0.0 23.9567 233pM Fe,Midnight 20.7706 19.8316 21.8426 1160pM Fe,Midday 16.910442857142858 15.5508 18.5826 1160pM Fe,Midnight 19.200175 11.6972 27.0346 High carbon,Dark 17.92766 1.7729 26.6099 High carbon,Light 13.495455384615385 5.09976 21.9797 Low carbon,Dark 11.3605 11.3605 11.3605 Phloroglucinol 7.2498233333333335 6.80679 7.79798 Silicon starvation,12h 28.0037 28.0037 28.0037