condition mean min max 12pM Fe,Midday 56.0174 56.0174 56.0174 12pM Fe,Midnight 39.6598 36.608 42.7116 58pM Fe,Midday 38.4262 38.4262 38.4262 58pM Fe,Midnight 25.864014285714283 0.0 33.0064 233pM Fe,Midnight 16.996000000000002 16.5695 17.4787 1160pM Fe,Midday 30.766342857142856 28.8324 32.8976 1160pM Fe,Midnight 18.997675 13.1307 25.4131 High carbon,Dark 17.693839333333333 6.72282 29.5623 High carbon,Light 15.170373076923076 3.02233 31.2583 Low carbon,Dark 11.9253 11.9253 11.9253 Phloroglucinol 46.09726666666666 38.6881 57.6776 Silicon starvation,12h 40.2616 40.2616 40.2616