condition mean min max 12pM Fe,Midday 26.7288 26.7288 26.7288 12pM Fe,Midnight 33.3953 29.8086 36.982 58pM Fe,Midday 30.6528 30.6528 30.6528 58pM Fe,Midnight 23.282442857142858 0.0 30.5798 233pM Fe,Midnight 25.676299999999998 23.048 28.4732 1160pM Fe,Midday 21.3007 18.238 25.0921 1160pM Fe,Midnight 29.69175 18.3269 41.1654 High carbon,Dark 32.53400666666667 15.8587 55.5345 High carbon,Light 25.910446153846152 12.0705 38.4817 Low carbon,Dark 35.1467 35.1467 35.1467 Phloroglucinol 17.608633333333334 16.5286 18.5661 Silicon starvation,12h 31.0161 31.0161 31.0161