condition mean min max 12pM Fe,Midday 19.2612 19.2612 19.2612 12pM Fe,Midnight 29.3724 26.8596 31.8852 58pM Fe,Midday 20.5293 20.5293 20.5293 58pM Fe,Midnight 25.162914285714287 0.0 31.5107 233pM Fe,Midnight 21.345666666666666 18.1813 25.8989 1160pM Fe,Midday 15.694871428571428 12.9574 18.2449 1160pM Fe,Midnight 16.28344166666667 11.2903 20.3118 High carbon,Dark 14.32827 6.32531 24.8646 High carbon,Light 11.111038461538461 1.62114 21.0487 Low carbon,Dark 14.2267 14.2267 14.2267 Phloroglucinol 22.832566666666665 19.9265 24.4135 Silicon starvation,12h 31.8808 31.8808 31.8808