condition mean min max 12pM Fe,Midday 37.4094 37.4094 37.4094 12pM Fe,Midnight 26.313049999999997 25.3723 27.2538 58pM Fe,Midday 24.7062 24.7062 24.7062 58pM Fe,Midnight 15.517157142857142 0.0 18.9674 233pM Fe,Midnight 16.873733333333334 14.0748 18.9889 1160pM Fe,Midday 25.782485714285716 23.7418 28.1922 1160pM Fe,Midnight 22.9629325 6.31909 36.1779 High carbon,Dark 15.170087333333333 8.42281 21.9204 High carbon,Light 17.736676923076924 4.78769 33.1788 Low carbon,Dark 16.739 16.739 16.739 Phloroglucinol 37.5461 33.4286 44.217 Silicon starvation,12h 28.0712 28.0712 28.0712