condition mean min max 12pM Fe,Midday 67.9087 67.9087 67.9087 12pM Fe,Midnight 79.62245 73.33 85.9149 58pM Fe,Midday 52.6017 52.6017 52.6017 58pM Fe,Midnight 54.858357142857145 0.0 75.3779 233pM Fe,Midnight 68.88646666666666 65.3964 72.6714 1160pM Fe,Midday 39.837671428571426 36.4493 42.6939 1160pM Fe,Midnight 57.15561666666667 45.6913 65.2359 High carbon,Dark 46.79432 18.1839 64.328 High carbon,Light 22.076475384615385 3.06547 67.3712 Low carbon,Dark 25.7364 25.7364 25.7364 Phloroglucinol 87.91823333333333 77.2215 95.331 Silicon starvation,12h 53.5747 53.5747 53.5747