condition mean min max 12pM Fe,Midday 17.0927 17.0927 17.0927 12pM Fe,Midnight 29.3296 28.2087 30.4505 58pM Fe,Midday 16.1765 16.1765 16.1765 58pM Fe,Midnight 30.823785714285712 24.2861 52.8366 233pM Fe,Midnight 29.8964 29.2994 30.4918 1160pM Fe,Midday 7.808572857142857 6.02375 9.79217 1160pM Fe,Midnight 40.26314166666667 28.3986 48.5567 High carbon,Dark 26.683368 5.65372 37.6743 High carbon,Light 19.915935384615384 1.0425 40.7204 Low carbon,Dark 14.0082 14.0082 14.0082 Phloroglucinol 10.231416666666666 8.73902 12.4553 Silicon starvation,12h 43.9748 43.9748 43.9748