condition mean min max 12pM Fe,Midday 46.444 46.444 46.444 12pM Fe,Midnight 56.5156 54.4703 58.5609 58pM Fe,Midday 40.3716 40.3716 40.3716 58pM Fe,Midnight 53.950657142857146 40.3381 72.7321 233pM Fe,Midnight 40.0895 39.1905 41.1962 1160pM Fe,Midday 33.44585714285714 27.3632 37.1412 1160pM Fe,Midnight 25.0862 17.2745 36.0292 High carbon,Dark 28.986906666666666 8.1069 47.6122 High carbon,Light 27.55590846153846 8.67241 42.3323 Low carbon,Dark 26.5972 26.5972 26.5972 Phloroglucinol 44.282466666666664 33.5902 52.6907 Silicon starvation,12h 42.7226 42.7226 42.7226