condition mean min max 12pM Fe,Midday 41.43 41.43 41.43 12pM Fe,Midnight 39.6123 39.2587 39.9659 58pM Fe,Midday 28.2656 28.2656 28.2656 58pM Fe,Midnight 28.0789 26.4437 30.8895 233pM Fe,Midnight 32.9302 32.1155 34.3849 1160pM Fe,Midday 25.382371428571428 21.9876 28.5459 1160pM Fe,Midnight 25.217425 21.0954 29.1119 High carbon,Dark 45.171013333333335 25.4431 60.4479 High carbon,Light 36.97390769230769 13.2888 63.0725 Low carbon,Dark 31.2238 31.2238 31.2238 Phloroglucinol 83.5156 60.1257 103.901 Silicon starvation,12h 44.1002 44.1002 44.1002