condition mean min max 12pM Fe,Midday 20.5681 20.5681 20.5681 12pM Fe,Midnight 13.4717 13.0717 13.8717 58pM Fe,Midday 21.0644 21.0644 21.0644 58pM Fe,Midnight 9.44181 0.0 13.9842 233pM Fe,Midnight 7.507286666666666 6.25699 8.19984 1160pM Fe,Midday 14.557671428571428 12.5469 17.6731 1160pM Fe,Midnight 7.468680833333333 3.03759 10.8646 High carbon,Dark 7.622208666666666 1.36273 12.59 High carbon,Light 13.081851615384615 0.448471 32.744 Low carbon,Dark 3.7136 3.7136 3.7136 Phloroglucinol 25.776266666666668 19.0941 35.3986 Silicon starvation,12h 27.4144 27.4144 27.4144