condition mean min max 12pM Fe,Midday 73.7142 73.7142 73.7142 12pM Fe,Midnight 29.2563 26.741 31.7716 58pM Fe,Midday 59.2736 59.2736 59.2736 58pM Fe,Midnight 30.8868 12.6948 99.6365 233pM Fe,Midnight 15.8264 14.9074 17.6297 1160pM Fe,Midday 54.0314 43.6863 65.9214 1160pM Fe,Midnight 22.122370833333335 5.89291 32.6176 High carbon,Dark 30.219146666666667 11.532 83.0708 High carbon,Light 39.418056923076925 3.96014 82.4531 Low carbon,Dark 45.0893 45.0893 45.0893 Phloroglucinol 41.49173333333333 27.3986 58.1215 Silicon starvation,12h 134.275 134.275 134.275