condition mean min max 12pM Fe,Midday 38.8035 38.8035 38.8035 12pM Fe,Midnight 21.03875 20.2303 21.8472 58pM Fe,Midday 29.7149 29.7149 29.7149 58pM Fe,Midnight 15.528342857142857 0.0 21.8833 233pM Fe,Midnight 13.973166666666668 13.5812 14.7245 1160pM Fe,Midday 21.851242857142857 20.7724 23.9118 1160pM Fe,Midnight 7.325371666666666 5.98997 8.91642 High carbon,Dark 12.273038666666666 3.39665 23.7255 High carbon,Light 11.374071307692308 0.964397 20.6467 Low carbon,Dark 11.9787 11.9787 11.9787 Phloroglucinol 16.800166666666666 13.6653 21.1355 Silicon starvation,12h 28.7771 28.7771 28.7771