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 0.281435 0.281435 0.281435 58pM Fe,Midnight 0.09439214285714286 0.0 0.393715 233pM Fe,Midnight 0.032860766666666666 0.0 0.0985823 1160pM Fe,Midday 0.2854422857142857 0.0 0.50889 1160pM Fe,Midnight 0.033058083333333335 0.0 0.136721 High carbon,Dark 0.1916348 0.0 1.28181 High carbon,Light 1.8350993076923077 0.0 12.5193 Low carbon,Dark 1.29209 1.29209 1.29209 Phloroglucinol 0.30824533333333337 0.201084 0.39861 Silicon starvation,12h 2.98595 2.98595 2.98595