condition mean min max 12pM Fe,Midday 17.3183 17.3183 17.3183 12pM Fe,Midnight 49.41315 46.6373 52.189 58pM Fe,Midday 17.5878 17.5878 17.5878 58pM Fe,Midnight 54.572428571428574 33.8843 139.918 233pM Fe,Midnight 39.75406666666667 38.5503 41.3701 1160pM Fe,Midday 12.576185714285714 10.3845 15.1696 1160pM Fe,Midnight 29.174866666666667 19.6261 41.2452 High carbon,Dark 35.176853333333334 14.9718 56.5301 High carbon,Light 18.569121538461538 8.57348 31.3705 Low carbon,Dark 26.8624 26.8624 26.8624 Phloroglucinol 25.628733333333333 16.4014 39.9555 Silicon starvation,12h 29.3367 29.3367 29.3367