condition mean min max 12pM Fe,Midday 17.4896 17.4896 17.4896 12pM Fe,Midnight 28.68975 28.531 28.8485 58pM Fe,Midday 17.1445 17.1445 17.1445 58pM Fe,Midnight 22.92394285714286 15.2278 60.9541 233pM Fe,Midnight 17.5151 15.8041 18.5653 1160pM Fe,Midday 16.09207142857143 14.2269 17.8631 1160pM Fe,Midnight 11.125469166666667 8.54964 13.6744 High carbon,Dark 16.96168266666667 5.98791 37.7888 High carbon,Light 15.432054615384615 3.02834 35.5322 Low carbon,Dark 18.668 18.668 18.668 Phloroglucinol 17.307066666666664 15.9355 19.9763 Silicon starvation,12h 48.8771 48.8771 48.8771