condition mean min max 12pM Fe,Midday 32.2107 32.2107 32.2107 12pM Fe,Midnight 32.452799999999996 31.7909 33.1147 58pM Fe,Midday 30.6195 30.6195 30.6195 58pM Fe,Midnight 18.186185714285713 0.0 24.3806 233pM Fe,Midnight 19.280133333333335 18.5332 20.2302 1160pM Fe,Midday 16.681671428571427 15.5904 18.4317 1160pM Fe,Midnight 6.464518333333333 5.2922 7.87839 High carbon,Dark 16.399306 2.05942 25.0747 High carbon,Light 7.152299230769231 1.34307 13.5266 Low carbon,Dark 14.3355 14.3355 14.3355 Phloroglucinol 14.158 12.2539 15.4785 Silicon starvation,12h 23.0351 23.0351 23.0351