condition mean min max 12pM Fe,Midday 28.2544 28.2544 28.2544 12pM Fe,Midnight 25.84395 21.7394 29.9485 58pM Fe,Midday 15.3851 15.3851 15.3851 58pM Fe,Midnight 17.79502857142857 0.0 27.5157 233pM Fe,Midnight 19.029566666666668 16.5043 21.3182 1160pM Fe,Midday 19.10205714285714 16.6974 22.021 1160pM Fe,Midnight 2.821559666666667 0.420879 8.20137 High carbon,Dark 19.441935333333333 4.3059 47.1069 High carbon,Light 8.647433846153847 2.28663 14.7709 Low carbon,Dark 15.0098 15.0098 15.0098 Phloroglucinol 16.42953333333333 12.0232 18.8795 Silicon starvation,12h 17.9308 17.9308 17.9308