condition mean min max 12pM Fe,Midday 33.0153 33.0153 33.0153 12pM Fe,Midnight 31.4052 29.4384 33.372 58pM Fe,Midday 29.4865 29.4865 29.4865 58pM Fe,Midnight 18.64804285714286 0.0 25.6673 233pM Fe,Midnight 25.393533333333334 24.0305 26.9022 1160pM Fe,Midday 25.233028571428573 23.779 27.0424 1160pM Fe,Midnight 15.2314 11.7344 18.3791 High carbon,Dark 16.929943333333334 6.46515 29.7377 High carbon,Light 14.509595384615384 3.633 28.4805 Low carbon,Dark 10.5292 10.5292 10.5292 Phloroglucinol 20.589866666666666 16.1912 25.8569 Silicon starvation,12h 43.7139 43.7139 43.7139