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 0.023414885714285714 0.0 0.0849585 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.08342658571428571 0.0 0.15532 1160pM Fe,Midnight 0.011774233333333333 0.0 0.0719348 High carbon,Dark 0.0418686 0.0 0.460992 High carbon,Light 0.3143360769230769 0.0 1.74455 Low carbon,Dark 0.15545 0.15545 0.15545 Phloroglucinol 0.0 0.0 0.0 Silicon starvation,12h 0.217719 0.217719 0.217719