condition mean min max 12pM Fe,Midday 27.974 27.974 27.974 12pM Fe,Midnight 34.66555 33.6634 35.6677 58pM Fe,Midday 19.0949 19.0949 19.0949 58pM Fe,Midnight 19.06312857142857 0.0 26.7129 233pM Fe,Midnight 20.0749 18.8273 21.1545 1160pM Fe,Midday 17.610485714285716 13.8342 21.4198 1160pM Fe,Midnight 10.5514925 8.04637 13.2221 High carbon,Dark 24.87634 11.4009 41.0829 High carbon,Light 17.74405 8.46959 33.1903 Low carbon,Dark 35.7159 35.7159 35.7159 Phloroglucinol 8.523096666666667 6.01001 11.9797 Silicon starvation,12h 22.965 22.965 22.965