condition mean min max 12pM Fe,Midday 21.4718 21.4718 21.4718 12pM Fe,Midnight 18.6336 18.238 19.0292 58pM Fe,Midday 15.4183 15.4183 15.4183 58pM Fe,Midnight 20.74395714285714 16.6729 39.9631 233pM Fe,Midnight 13.730766666666668 13.38 13.9321 1160pM Fe,Midday 12.742071428571428 10.2776 14.0479 1160pM Fe,Midnight 6.714849166666667 4.24406 10.9894 High carbon,Dark 13.0997 1.24723 26.003 High carbon,Light 7.150674615384616 0.7614 19.0179 Low carbon,Dark 11.1432 11.1432 11.1432 Phloroglucinol 9.06564 7.74884 10.4929 Silicon starvation,12h 16.8221 16.8221 16.8221