condition mean min max 12pM Fe,Midday 39.7344 39.7344 39.7344 12pM Fe,Midnight 33.635799999999996 29.9866 37.285 58pM Fe,Midday 67.2868 67.2868 67.2868 58pM Fe,Midnight 50.33434285714286 20.0614 162.357 233pM Fe,Midnight 18.038899999999998 17.4924 18.3632 1160pM Fe,Midday 18.79812857142857 16.3136 20.9579 1160pM Fe,Midnight 11.771476666666667 6.87131 14.6081 High carbon,Dark 17.480141333333332 7.71234 25.7325 High carbon,Light 14.759532307692307 2.95763 29.8571 Low carbon,Dark 24.4909 24.4909 24.4909 Phloroglucinol 22.7562 15.0148 35.9392 Silicon starvation,12h 30.9231 30.9231 30.9231