condition mean min max 12pM Fe,Midday 25.2758 25.2758 25.2758 12pM Fe,Midnight 21.3886 20.6418 22.1354 58pM Fe,Midday 16.0382 16.0382 16.0382 58pM Fe,Midnight 31.350714285714286 14.9963 118.226 233pM Fe,Midnight 21.0822 20.4263 21.4367 1160pM Fe,Midday 12.505714285714285 10.4613 17.9669 1160pM Fe,Midnight 11.069195833333334 6.04018 20.6772 High carbon,Dark 18.769803333333332 2.10845 31.2516 High carbon,Light 11.343703846153845 1.16634 21.1606 Low carbon,Dark 17.2936 17.2936 17.2936 Phloroglucinol 9.738836666666666 8.83097 11.2159 Silicon starvation,12h 28.4784 28.4784 28.4784