condition mean min max 12pM Fe,Midday 16.919 16.919 16.919 12pM Fe,Midnight 17.48135 16.5856 18.3771 58pM Fe,Midday 13.64 13.64 13.64 58pM Fe,Midnight 10.679885714285714 0.0 14.2388 233pM Fe,Midnight 11.43137 9.76051 13.3464 1160pM Fe,Midday 15.372714285714286 13.9888 17.4451 1160pM Fe,Midnight 4.211333333333333 2.41816 7.79624 High carbon,Dark 7.8103191333333335 0.672577 15.3761 High carbon,Light 7.9217214615384615 0.0 19.7217 Low carbon,Dark 9.16425 9.16425 9.16425 Phloroglucinol 11.223806666666666 7.84412 13.5762 Silicon starvation,12h 21.6059 21.6059 21.6059