condition mean min max 12pM Fe,Midday 19.9488 19.9488 19.9488 12pM Fe,Midnight 16.8818 15.423 18.3406 58pM Fe,Midday 11.5119 11.5119 11.5119 58pM Fe,Midnight 14.813214285714286 0.0 19.3299 233pM Fe,Midnight 9.515573333333334 8.78687 9.90277 1160pM Fe,Midday 13.706028571428572 11.235 16.3695 1160pM Fe,Midnight 6.98759 4.19211 10.0267 High carbon,Dark 12.327774 3.20757 25.0507 High carbon,Light 9.419808 0.0 21.3146 Low carbon,Dark 14.5637 14.5637 14.5637 Phloroglucinol 10.74598 7.60894 14.576 Silicon starvation,12h 11.6792 11.6792 11.6792