condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.0 0.0 0.0 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.42861142857142853 0.0 1.98514 233pM Fe,Midnight 0.253855 0.0 0.761565 1160pM Fe,Midday 0.0 0.0 0.0 1160pM Fe,Midnight 0.07536858333333334 0.0 0.904423 High carbon,Dark 0.0 0.0 0.0 High carbon,Light 0.5834446153846153 0.0 5.18821 Low carbon,Dark 1.95445 1.95445 1.95445 Phloroglucinol 2.630847666666667 0.753683 4.09722 Silicon starvation,12h 2.73734 2.73734 2.73734