condition mean min max 12pM Fe,Midday 22.9244 22.9244 22.9244 12pM Fe,Midnight 19.962899999999998 18.7834 21.1424 58pM Fe,Midday 14.9573 14.9573 14.9573 58pM Fe,Midnight 11.718985714285715 0.0 16.9222 233pM Fe,Midnight 14.394366666666667 12.6318 16.2747 1160pM Fe,Midday 16.119085714285713 13.1645 18.4221 1160pM Fe,Midnight 10.553568333333333 7.13902 14.3347 High carbon,Dark 18.465465333333334 1.61729 66.7954 High carbon,Light 15.282982692307693 0.817935 51.2846 Low carbon,Dark 13.546 13.546 13.546 Phloroglucinol 17.9291 15.6645 19.4047 Silicon starvation,12h 42.9507 42.9507 42.9507