condition mean min max 12pM Fe,Midday 22.2083 22.2083 22.2083 12pM Fe,Midnight 20.58175 19.4783 21.6852 58pM Fe,Midday 16.5731 16.5731 16.5731 58pM Fe,Midnight 11.652028571428572 0.0 14.5734 233pM Fe,Midnight 15.951566666666666 14.1639 16.9183 1160pM Fe,Midday 16.93787142857143 14.5185 21.2381 1160pM Fe,Midnight 6.490075 4.92228 8.04232 High carbon,Dark 15.513188666666666 1.91459 25.2758 High carbon,Light 16.023803076923077 2.2053 35.088 Low carbon,Dark 13.9133 13.9133 13.9133 Phloroglucinol 20.86896666666667 16.7712 26.0511 Silicon starvation,12h 24.0537 24.0537 24.0537