condition mean min max 12pM Fe,Midday 15.8113 15.8113 15.8113 12pM Fe,Midnight 13.054549999999999 12.4401 13.669 58pM Fe,Midday 17.8157 17.8157 17.8157 58pM Fe,Midnight 6.297518571428571 0.0 8.46721 233pM Fe,Midnight 5.504893333333333 5.45814 5.58687 1160pM Fe,Midday 8.53484 7.54407 9.69457 1160pM Fe,Midnight 5.6647925 4.89824 6.11074 High carbon,Dark 5.439016466666667 0.375428 13.6507 High carbon,Light 3.336129230769231 0.88238 12.0355 Low carbon,Dark 4.52269 4.52269 4.52269 Phloroglucinol 2.6122433333333333 1.78117 3.07 Silicon starvation,12h 0.572787 0.572787 0.572787