condition mean min max 12pM Fe,Midday 63.7443 63.7443 63.7443 12pM Fe,Midnight 48.75275 46.9084 50.5971 58pM Fe,Midday 52.4178 52.4178 52.4178 58pM Fe,Midnight 48.776785714285715 22.4043 160.143 233pM Fe,Midnight 23.8217 21.4622 27.3831 1160pM Fe,Midday 23.045614285714286 19.8385 27.0058 1160pM Fe,Midnight 15.019514166666667 9.72127 24.0205 High carbon,Dark 17.222342 8.69991 29.6988 High carbon,Light 16.993123846153846 2.38688 31.8351 Low carbon,Dark 16.1046 16.1046 16.1046 Phloroglucinol 39.98963333333333 35.9918 46.9934 Silicon starvation,12h 53.0571 53.0571 53.0571