condition mean min max 12pM Fe,Midday 45.326 45.326 45.326 12pM Fe,Midnight 33.6357 33.4714 33.8 58pM Fe,Midday 44.4879 44.4879 44.4879 58pM Fe,Midnight 24.966671428571427 0.0 30.9611 233pM Fe,Midnight 22.3888 21.7224 22.7907 1160pM Fe,Midday 26.95317142857143 22.2437 29.2343 1160pM Fe,Midnight 23.222791666666666 20.9434 25.866 High carbon,Dark 28.876706666666667 16.882 42.2221 High carbon,Light 26.060067692307694 7.22329 41.0565 Low carbon,Dark 18.568 18.568 18.568 Phloroglucinol 29.432233333333333 21.9134 39.0549 Silicon starvation,12h 69.0237 69.0237 69.0237