condition mean min max 12pM Fe,Midday 37.8632 37.8632 37.8632 12pM Fe,Midnight 31.114649999999997 31.0411 31.1882 58pM Fe,Midday 25.4331 25.4331 25.4331 58pM Fe,Midnight 18.906299999999998 0.0 25.139 233pM Fe,Midnight 18.338966666666668 17.4994 19.4452 1160pM Fe,Midday 24.742242857142855 20.8483 28.1189 1160pM Fe,Midnight 9.256798333333332 7.14216 11.1824 High carbon,Dark 18.867278 5.19118 39.1612 High carbon,Light 18.40467153846154 2.27787 36.1349 Low carbon,Dark 24.0267 24.0267 24.0267 Phloroglucinol 22.738966666666666 19.9161 25.4231 Silicon starvation,12h 49.0614 49.0614 49.0614