condition mean min max 12pM Fe,Midday 47.2989 47.2989 47.2989 12pM Fe,Midnight 41.6062 40.8955 42.3169 58pM Fe,Midday 46.7188 46.7188 46.7188 58pM Fe,Midnight 41.0656 35.4565 48.8783 233pM Fe,Midnight 53.387933333333336 50.2337 59.1522 1160pM Fe,Midday 36.459985714285715 30.8449 41.1877 1160pM Fe,Midnight 44.5835 31.6843 55.7238 High carbon,Dark 55.175313333333335 41.2126 77.4011 High carbon,Light 43.58880615384615 9.45108 68.9875 Low carbon,Dark 38.2061 38.2061 38.2061 Phloroglucinol 43.31223333333333 29.7294 56.9554 Silicon starvation,12h 62.4287 62.4287 62.4287