condition mean min max 12pM Fe,Midday 0.182452 0.182452 0.182452 12pM Fe,Midnight 0.0 0.0 0.0 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.04329271428571429 0.0 0.162034 233pM Fe,Midnight 0.07540066666666666 0.0 0.226202 1160pM Fe,Midday 0.0 0.0 0.0 1160pM Fe,Midnight 0.187029 0.0 0.616771 High carbon,Dark 0.278548 0.0 1.0965 High carbon,Light 0.29372023076923076 0.0 1.8712 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 1.82313 0.0 5.46939 Silicon starvation,12h 0.311428 0.311428 0.311428