condition mean min max 12pM Fe,Midday 27.6023 27.6023 27.6023 12pM Fe,Midnight 25.1188 24.8501 25.3875 58pM Fe,Midday 22.6951 22.6951 22.6951 58pM Fe,Midnight 17.347628571428572 16.474 18.107 233pM Fe,Midnight 18.4922 17.5018 19.0631 1160pM Fe,Midday 16.266871428571427 14.7193 18.1268 1160pM Fe,Midnight 22.868575 17.6146 26.7824 High carbon,Dark 19.647753333333334 13.3973 29.9383 High carbon,Light 13.780035384615385 1.69645 21.9536 Low carbon,Dark 9.27986 9.27986 9.27986 Phloroglucinol 23.4211 18.0841 33.3447 Silicon starvation,12h 19.6667 19.6667 19.6667