condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.0746005 0.0 0.149201 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.017298285714285714 0.0 0.121088 233pM Fe,Midnight 0.0297825 0.0 0.0893475 1160pM Fe,Midday 0.0 0.0 0.0 1160pM Fe,Midnight 0.03725766666666667 0.0 0.230685 High carbon,Dark 0.3118608666666667 0.0 1.28902 High carbon,Light 0.3105500769230769 0.0 1.40684 Low carbon,Dark 0.46626 0.46626 0.46626 Phloroglucinol 0.580426 0.293235 1.08844 Silicon starvation,12h 0.0816288 0.0816288 0.0816288