condition mean min max 12pM Fe,Midday 73.6611 73.6611 73.6611 12pM Fe,Midnight 48.844849999999994 45.6641 52.0256 58pM Fe,Midday 64.8303 64.8303 64.8303 58pM Fe,Midnight 26.981042857142857 0.0 35.6825 233pM Fe,Midnight 22.017433333333333 20.2672 24.4427 1160pM Fe,Midday 50.04298571428571 39.3412 59.2756 1160pM Fe,Midnight 9.538125833333334 4.53003 13.3009 High carbon,Dark 33.111924 1.9325 150.461 High carbon,Light 23.838593846153845 1.3914 55.3649 Low carbon,Dark 23.6833 23.6833 23.6833 Phloroglucinol 37.4706 30.6316 50.1854 Silicon starvation,12h 46.8416 46.8416 46.8416