condition mean min max 12pM Fe,Midday 25.866 25.866 25.866 12pM Fe,Midnight 26.32135 25.3386 27.3041 58pM Fe,Midday 19.4457 19.4457 19.4457 58pM Fe,Midnight 15.515028571428571 0.0 19.5171 233pM Fe,Midnight 17.5154 16.2297 18.5944 1160pM Fe,Midday 19.48522857142857 17.6825 20.6901 1160pM Fe,Midnight 10.90041 6.60355 15.8429 High carbon,Dark 19.152564666666667 4.07497 34.9073 High carbon,Light 17.024446153846153 4.57975 29.2419 Low carbon,Dark 13.2731 13.2731 13.2731 Phloroglucinol 20.169366666666665 12.1725 26.7651 Silicon starvation,12h 35.1879 35.1879 35.1879