condition mean min max 12pM Fe,Midday 34.2432 34.2432 34.2432 12pM Fe,Midnight 32.80135 30.3041 35.2986 58pM Fe,Midday 26.0755 26.0755 26.0755 58pM Fe,Midnight 31.7259 26.4939 58.524 233pM Fe,Midnight 21.714533333333332 21.0566 22.0437 1160pM Fe,Midday 17.385757142857145 14.033 20.2945 1160pM Fe,Midnight 8.1534375 3.59101 14.5085 High carbon,Dark 23.265484 2.34836 42.8314 High carbon,Light 16.725141307692308 0.223007 32.0082 Low carbon,Dark 15.2486 15.2486 15.2486 Phloroglucinol 20.855866666666664 15.815 25.6044 Silicon starvation,12h 16.2049 16.2049 16.2049