condition mean min max 12pM Fe,Midday 40.3645 40.3645 40.3645 12pM Fe,Midnight 41.128 39.2068 43.0492 58pM Fe,Midday 32.9807 32.9807 32.9807 58pM Fe,Midnight 32.589085714285716 30.5299 34.0932 233pM Fe,Midnight 23.245266666666666 22.5705 24.4894 1160pM Fe,Midday 26.67327142857143 23.4255 29.0825 1160pM Fe,Midnight 16.453858333333333 12.6994 22.5785 High carbon,Dark 20.606218 8.43927 32.8712 High carbon,Light 13.678947692307691 4.44926 21.6424 Low carbon,Dark 12.4204 12.4204 12.4204 Phloroglucinol 28.82643333333333 21.7416 37.9154 Silicon starvation,12h 25.3605 25.3605 25.3605