condition mean min max 12pM Fe,Midday 55.0368 55.0368 55.0368 12pM Fe,Midnight 46.2321 45.5954 46.8688 58pM Fe,Midday 44.1048 44.1048 44.1048 58pM Fe,Midnight 44.77908571428571 38.5243 73.8295 233pM Fe,Midnight 46.51603333333333 43.6588 50.4428 1160pM Fe,Midday 41.39528571428571 36.2573 43.5112 1160pM Fe,Midnight 26.339533333333335 14.7257 46.9784 High carbon,Dark 37.48322666666667 20.3077 53.3767 High carbon,Light 30.047823076923077 15.1497 52.5557 Low carbon,Dark 26.6611 26.6611 26.6611 Phloroglucinol 15.928633333333334 11.686 20.0925 Silicon starvation,12h 43.1309 43.1309 43.1309