condition mean min max 12pM Fe,Midday 10.9632 10.9632 10.9632 12pM Fe,Midnight 5.916309999999999 5.49337 6.33925 58pM Fe,Midday 5.73228 5.73228 5.73228 58pM Fe,Midnight 4.906891428571429 0.0 6.62462 233pM Fe,Midnight 2.0564 1.67586 2.34773 1160pM Fe,Midday 5.539304285714286 4.29171 6.56619 1160pM Fe,Midnight 1.3406355 0.61116 2.09547 High carbon,Dark 2.7469140666666667 0.162985 9.95172 High carbon,Light 2.256392230769231 0.234698 7.3478 Low carbon,Dark 2.91516 2.91516 2.91516 Phloroglucinol 2.7674866666666667 1.93605 3.53093 Silicon starvation,12h 3.28899 3.28899 3.28899