condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.0905855 0.0 0.181171 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.019498857142857144 0.0 0.136492 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.020480571428571428 0.0 0.143364 1160pM Fe,Midnight 0.0 0.0 0.0 High carbon,Dark 0.0 0.0 0.0 High carbon,Light 0.0 0.0 0.0 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.0 0.0 0.0 Silicon starvation,12h 0.0 0.0 0.0