condition mean min max 12pM Fe,Midday 1.81992 1.81992 1.81992 12pM Fe,Midnight 0.974174 0.866838 1.08151 58pM Fe,Midday 0.632638 0.632638 0.632638 58pM Fe,Midnight 0.46610614285714286 0.0 0.987448 233pM Fe,Midnight 0.679404 0.445261 1.02887 1160pM Fe,Midday 1.0011277142857142 0.64915 1.50791 1160pM Fe,Midnight 0.5961019166666667 0.31353 1.31962 High carbon,Dark 1.8168834666666667 0.637746 3.5219 High carbon,Light 2.444784876923077 0.0911774 7.43995 Low carbon,Dark 0.633708 0.633708 0.633708 Phloroglucinol 3.2206366666666666 1.5477 4.82681 Silicon starvation,12h 0.25887 0.25887 0.25887