condition mean min max 12pM Fe,Midday 19.1292 19.1292 19.1292 12pM Fe,Midnight 31.945999999999998 25.5776 38.3144 58pM Fe,Midday 23.3746 23.3746 23.3746 58pM Fe,Midnight 20.568242857142856 0.0 28.822 233pM Fe,Midnight 18.235133333333334 15.8841 20.1871 1160pM Fe,Midday 22.532371428571427 15.3032 31.7977 1160pM Fe,Midnight 18.532909166666666 7.20205 29.6349 High carbon,Dark 10.733020666666667 1.44374 19.9981 High carbon,Light 11.01317 0.0 25.2181 Low carbon,Dark 7.40103 7.40103 7.40103 Phloroglucinol 22.9257 19.4073 29.7892 Silicon starvation,12h 9.84738 9.84738 9.84738