condition mean min max 12pM Fe,Midday 213.828 213.828 213.828 12pM Fe,Midnight 185.7765 182.134 189.419 58pM Fe,Midday 255.878 255.878 255.878 58pM Fe,Midnight 260.9925714285714 208.951 482.623 233pM Fe,Midnight 297.6863333333333 281.529 313.915 1160pM Fe,Midday 193.79157142857142 174.862 217.12 1160pM Fe,Midnight 291.8000833333333 237.995 326.811 High carbon,Dark 435.2248666666667 196.887 669.382 High carbon,Light 456.2940769230769 162.512 811.25 Low carbon,Dark 612.197 612.197 612.197 Phloroglucinol 220.518 154.928 259.914 Silicon starvation,12h 468.108 468.108 468.108