condition mean min max 12pM Fe,Midday 10.4091 10.4091 10.4091 12pM Fe,Midnight 10.424949999999999 10.3331 10.5168 58pM Fe,Midday 10.7456 10.7456 10.7456 58pM Fe,Midnight 7.140271428571428 0.0 9.6061 233pM Fe,Midnight 16.059833333333334 13.7809 17.876 1160pM Fe,Midday 8.2718 7.06551 9.51922 1160pM Fe,Midnight 7.819740833333333 4.74041 13.035 High carbon,Dark 9.242170666666667 4.24944 15.9272 High carbon,Light 6.455620769230769 1.76992 11.7904 Low carbon,Dark 9.99492 9.99492 9.99492 Phloroglucinol 5.426956666666666 5.18493 5.83085 Silicon starvation,12h 22.8823 22.8823 22.8823