condition mean min max 12pM Fe,Midday 10.82 10.82 10.82 12pM Fe,Midnight 11.09842 9.72334 12.4735 58pM Fe,Midday 9.57403 9.57403 9.57403 58pM Fe,Midnight 7.000561428571428 0.0 9.48612 233pM Fe,Midnight 8.8818 8.31909 9.29788 1160pM Fe,Midday 6.4947799999999996 5.47726 8.07338 1160pM Fe,Midnight 3.2991608333333335 1.01149 7.82078 High carbon,Dark 8.321193333333333 4.15866 14.089 High carbon,Light 6.1265962307692305 0.470641 12.0431 Low carbon,Dark 3.27108 3.27108 3.27108 Phloroglucinol 5.45097 3.39379 8.22883 Silicon starvation,12h 21.9047 21.9047 21.9047