condition mean min max 12pM Fe,Midday 28.1994 28.1994 28.1994 12pM Fe,Midnight 23.57835 23.3857 23.771 58pM Fe,Midday 21.4346 21.4346 21.4346 58pM Fe,Midnight 17.069542857142856 14.9162 22.0804 233pM Fe,Midnight 14.617466666666667 14.1309 14.9449 1160pM Fe,Midday 20.989285714285714 19.6602 21.929 1160pM Fe,Midnight 9.208005833333333 7.41099 10.4471 High carbon,Dark 17.597986666666667 4.43004 35.9212 High carbon,Light 14.061475384615385 5.40216 21.9032 Low carbon,Dark 18.1677 18.1677 18.1677 Phloroglucinol 7.816073333333334 5.68257 10.5794 Silicon starvation,12h 14.6663 14.6663 14.6663