condition mean min max 12pM Fe,Midday 17.8162 17.8162 17.8162 12pM Fe,Midnight 17.11475 16.6322 17.5973 58pM Fe,Midday 15.9112 15.9112 15.9112 58pM Fe,Midnight 15.137599999999999 10.9466 29.4577 233pM Fe,Midnight 6.37563 5.85599 6.7685 1160pM Fe,Midday 9.536608571428571 8.02132 11.716 1160pM Fe,Midnight 3.9215416666666667 1.13255 6.85426 High carbon,Dark 10.1128502 0.63901 29.8892 High carbon,Light 5.994677230769231 0.241483 18.3277 Low carbon,Dark 12.3882 12.3882 12.3882 Phloroglucinol 0.268108 0.207704 0.314337 Silicon starvation,12h 0.471482 0.471482 0.471482