condition mean min max 12pM Fe,Midday 37.4102 37.4102 37.4102 12pM Fe,Midnight 27.93445 25.5188 30.3501 58pM Fe,Midday 25.3033 25.3033 25.3033 58pM Fe,Midnight 32.49791428571429 22.2652 69.6274 233pM Fe,Midnight 16.93723333333333 15.6627 19.1507 1160pM Fe,Midday 31.4206 27.6177 34.3151 1160pM Fe,Midnight 13.809851666666667 8.8041 19.3218 High carbon,Dark 20.359742666666666 7.86593 29.3706 High carbon,Light 19.467152307692306 0.69185 37.3859 Low carbon,Dark 21.6426 21.6426 21.6426 Phloroglucinol 44.6624 37.8919 58.0477 Silicon starvation,12h 43.6849 43.6849 43.6849