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 0.0 0.0 0.0 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.0 0.0 0.0 1160pM Fe,Midnight 0.0 0.0 0.0 High carbon,Dark 0.05232013333333333 0.0 0.784802 High carbon,Light 0.13104323076923077 0.0 1.03773 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.04597166666666667 0.0 0.137915 Silicon starvation,12h 0.0 0.0 0.0