condition mean min max 12pM Fe,Midday 88.7245 88.7245 88.7245 12pM Fe,Midnight 42.1314 41.9928 42.27 58pM Fe,Midday 63.9241 63.9241 63.9241 58pM Fe,Midnight 26.6884 0.0 35.1361 233pM Fe,Midnight 25.60953333333333 23.839 28.698 1160pM Fe,Midday 46.598971428571424 41.9719 52.9227 1160pM Fe,Midnight 31.973583333333334 13.0308 51.2345 High carbon,Dark 30.91152 16.6205 54.0148 High carbon,Light 34.255296923076926 6.79194 71.8291 Low carbon,Dark 12.0517 12.0517 12.0517 Phloroglucinol 36.240233333333336 23.9257 51.2779 Silicon starvation,12h 48.606 48.606 48.606