condition mean min max 12pM Fe,Midday 24.403 24.403 24.403 12pM Fe,Midnight 14.5378 13.9306 15.145 58pM Fe,Midday 17.9361 17.9361 17.9361 58pM Fe,Midnight 18.649102857142857 6.29192 69.9592 233pM Fe,Midnight 5.126446666666666 4.87979 5.5152 1160pM Fe,Midday 8.916294285714287 7.27369 10.4323 1160pM Fe,Midnight 3.89079575 0.998749 8.39163 High carbon,Dark 6.4255124 0.704096 13.1518 High carbon,Light 4.4428888461538465 0.231716 12.0435 Low carbon,Dark 4.79685 4.79685 4.79685 Phloroglucinol 14.095866666666666 12.3319 16.5478 Silicon starvation,12h 18.1395 18.1395 18.1395