condition mean min max 12pM Fe,Midday 67.0123 67.0123 67.0123 12pM Fe,Midnight 65.66895 63.5794 67.7585 58pM Fe,Midday 72.9104 72.9104 72.9104 58pM Fe,Midnight 51.1172 0.0 63.7842 233pM Fe,Midnight 50.8776 48.4497 52.3572 1160pM Fe,Midday 67.58879999999999 58.5722 76.3201 1160pM Fe,Midnight 27.564433333333334 17.9824 40.087 High carbon,Dark 43.41866 18.7672 63.1824 High carbon,Light 36.9885 15.0103 62.5396 Low carbon,Dark 32.9316 32.9316 32.9316 Phloroglucinol 28.8152 26.5455 31.7123 Silicon starvation,12h 27.4526 27.4526 27.4526