condition mean min max 12pM Fe,Midday 19.4642 19.4642 19.4642 12pM Fe,Midnight 22.25295 21.2774 23.2285 58pM Fe,Midday 16.6581 16.6581 16.6581 58pM Fe,Midnight 23.326014285714287 16.0301 56.7152 233pM Fe,Midnight 11.548766666666666 10.4834 13.2335 1160pM Fe,Midday 13.221994285714286 9.97276 15.346 1160pM Fe,Midnight 7.251709166666666 4.19284 9.63252 High carbon,Dark 11.542671333333333 4.28102 17.863 High carbon,Light 6.459775230769231 0.895218 15.6447 Low carbon,Dark 8.03676 8.03676 8.03676 Phloroglucinol 15.217636666666666 8.59771 21.5219 Silicon starvation,12h 15.4317 15.4317 15.4317