condition mean min max 12pM Fe,Midday 66.3522 66.3522 66.3522 12pM Fe,Midnight 54.84665 54.6509 55.0424 58pM Fe,Midday 80.787 80.787 80.787 58pM Fe,Midnight 41.934357142857145 14.5153 49.6074 233pM Fe,Midnight 45.16983333333334 44.3736 46.5114 1160pM Fe,Midday 46.581585714285715 43.8234 48.8254 1160pM Fe,Midnight 51.158941666666664 42.2943 60.2032 High carbon,Dark 48.606806666666664 25.9512 67.633 High carbon,Light 43.09202384615384 5.26966 63.4787 Low carbon,Dark 34.3033 34.3033 34.3033 Phloroglucinol 37.92616666666667 24.3692 57.8356 Silicon starvation,12h 29.8069 29.8069 29.8069