condition mean min max 12pM Fe,Midday 31.5138 31.5138 31.5138 12pM Fe,Midnight 20.428800000000003 20.1236 20.734 58pM Fe,Midday 31.1571 31.1571 31.1571 58pM Fe,Midnight 19.77997142857143 0.0 24.9695 233pM Fe,Midnight 46.5289 43.0574 48.8666 1160pM Fe,Midday 14.7107 12.0974 18.5375 1160pM Fe,Midnight 50.85418333333333 30.2171 69.4551 High carbon,Dark 48.18653333333334 26.4721 94.4803 High carbon,Light 48.238224461538465 0.871188 85.1858 Low carbon,Dark 23.7755 23.7755 23.7755 Phloroglucinol 18.23936666666667 17.3824 19.0421 Silicon starvation,12h 69.6174 69.6174 69.6174