condition mean min max 12pM Fe,Midday 45.7481 45.7481 45.7481 12pM Fe,Midnight 50.1065 48.2928 51.9202 58pM Fe,Midday 42.8854 42.8854 42.8854 58pM Fe,Midnight 40.017585714285715 23.5693 44.927 233pM Fe,Midnight 42.179899999999996 41.3468 43.3242 1160pM Fe,Midday 34.833914285714286 31.853 39.007 1160pM Fe,Midnight 39.269666666666666 35.973 42.4167 High carbon,Dark 46.87583333333333 31.0801 65.6991 High carbon,Light 41.63688923076923 3.86189 81.7835 Low carbon,Dark 28.9814 28.9814 28.9814 Phloroglucinol 60.617133333333335 54.7439 63.7321 Silicon starvation,12h 25.9538 25.9538 25.9538