condition mean min max 12pM Fe,Midday 45.3051 45.3051 45.3051 12pM Fe,Midnight 33.33635 29.7572 36.9155 58pM Fe,Midday 35.8683 35.8683 35.8683 58pM Fe,Midnight 36.2884 27.1443 77.0592 233pM Fe,Midnight 27.222433333333335 24.8431 31.3095 1160pM Fe,Midday 38.42447142857143 34.9726 40.3266 1160pM Fe,Midnight 13.121866666666667 8.19092 21.3735 High carbon,Dark 24.071652 8.69368 41.8631 High carbon,Light 22.022593846153846 7.1465 36.2335 Low carbon,Dark 30.6453 30.6453 30.6453 Phloroglucinol 19.473366666666667 14.1268 25.1067 Silicon starvation,12h 34.0407 34.0407 34.0407