condition mean min max 12pM Fe,Midday 33.2794 33.2794 33.2794 12pM Fe,Midnight 23.999000000000002 23.9403 24.0577 58pM Fe,Midday 21.3672 21.3672 21.3672 58pM Fe,Midnight 31.743871428571428 21.5799 72.1365 233pM Fe,Midnight 18.429133333333333 16.4463 21.1045 1160pM Fe,Midday 16.349071428571428 14.9733 18.24 1160pM Fe,Midnight 10.952695833333333 6.40874 13.8671 High carbon,Dark 16.400553333333335 1.6081 29.9878 High carbon,Light 9.750187692307692 1.42329 16.1734 Low carbon,Dark 17.8061 17.8061 17.8061 Phloroglucinol 9.288563333333332 3.68755 15.0694 Silicon starvation,12h 20.8977 20.8977 20.8977