condition mean min max 12pM Fe,Midday 5.33546 5.33546 5.33546 12pM Fe,Midnight 11.51385 11.035 11.9927 58pM Fe,Midday 5.03934 5.03934 5.03934 58pM Fe,Midnight 7.11825 0.0 9.21058 233pM Fe,Midnight 12.197366666666667 11.5737 12.792 1160pM Fe,Midday 3.0658885714285713 2.68568 3.4201 1160pM Fe,Midnight 7.3407800000000005 5.34982 10.0336 High carbon,Dark 7.848803333333334 4.30239 13.1672 High carbon,Light 6.517089230769231 3.16802 13.9758 Low carbon,Dark 9.83891 9.83891 9.83891 Phloroglucinol 8.274226666666667 6.93587 9.3914 Silicon starvation,12h 13.132 13.132 13.132