condition mean min max 12pM Fe,Midday 30.0142 30.0142 30.0142 12pM Fe,Midnight 31.4362 30.8345 32.0379 58pM Fe,Midday 20.2142 20.2142 20.2142 58pM Fe,Midnight 23.517728571428574 19.4163 43.197 233pM Fe,Midnight 17.444033333333334 16.4653 18.7676 1160pM Fe,Midday 19.0087 16.892 21.1182 1160pM Fe,Midnight 6.576206666666667 4.70172 10.6189 High carbon,Dark 18.477165333333332 7.5512 34.4135 High carbon,Light 13.55586 1.28768 33.1711 Low carbon,Dark 18.3635 18.3635 18.3635 Phloroglucinol 24.554066666666667 21.4728 30.2177 Silicon starvation,12h 31.9419 31.9419 31.9419