condition mean min max 12pM Fe,Midday 21.9708 21.9708 21.9708 12pM Fe,Midnight 29.44565 27.6723 31.219 58pM Fe,Midday 13.0888 13.0888 13.0888 58pM Fe,Midnight 19.292728571428572 0.0 26.0441 233pM Fe,Midnight 12.057333333333334 10.653 14.2246 1160pM Fe,Midday 14.902442857142857 12.5297 17.4485 1160pM Fe,Midnight 31.098958333333332 17.5024 43.5469 High carbon,Dark 61.30555333333333 16.6568 110.151 High carbon,Light 76.76122307692307 15.028 149.795 Low carbon,Dark 15.5532 15.5532 15.5532 Phloroglucinol 90.36956666666667 62.8504 127.042 Silicon starvation,12h 141.468 141.468 141.468