condition mean min max 12pM Fe,Midday 40.0633 40.0633 40.0633 12pM Fe,Midnight 32.22945 32.0352 32.4237 58pM Fe,Midday 27.966 27.966 27.966 58pM Fe,Midnight 21.671214285714285 0.0 26.3016 233pM Fe,Midnight 23.380233333333333 23.176 23.6197 1160pM Fe,Midday 28.884171428571427 28.0617 29.7965 1160pM Fe,Midnight 16.875266666666665 14.7722 19.1973 High carbon,Dark 21.594687333333333 8.91871 33.618 High carbon,Light 17.417216153846155 4.70334 27.5002 Low carbon,Dark 15.9137 15.9137 15.9137 Phloroglucinol 33.47076666666666 30.1256 36.5149 Silicon starvation,12h 31.4061 31.4061 31.4061