condition mean min max 12pM Fe,Midday 12.7349 12.7349 12.7349 12pM Fe,Midnight 7.63644 7.01143 8.26145 58pM Fe,Midday 13.4227 13.4227 13.4227 58pM Fe,Midnight 4.733334285714286 0.0 6.36878 233pM Fe,Midnight 5.032056666666667 4.62465 5.45638 1160pM Fe,Midday 8.444708571428572 6.79939 10.4902 1160pM Fe,Midnight 2.4840583333333335 1.299 4.64722 High carbon,Dark 5.323076933333334 0.296824 9.80031 High carbon,Light 3.706899230769231 0.50737 8.13082 Low carbon,Dark 5.47777 5.47777 5.47777 Phloroglucinol 6.747826666666667 5.98503 7.27279 Silicon starvation,12h 6.07367 6.07367 6.07367