condition mean min max 12pM Fe,Midday 13.1052 13.1052 13.1052 12pM Fe,Midnight 20.51215 20.0174 21.0069 58pM Fe,Midday 15.5822 15.5822 15.5822 58pM Fe,Midnight 17.94495714285714 0.0 24.2962 233pM Fe,Midnight 25.94643333333333 25.7597 26.1486 1160pM Fe,Midday 6.312577142857142 3.04749 9.44338 1160pM Fe,Midnight 20.75815 16.5029 29.5634 High carbon,Dark 21.942801333333335 4.54362 38.8438 High carbon,Light 15.021981538461539 0.0 31.0911 Low carbon,Dark 21.9609 21.9609 21.9609 Phloroglucinol 12.6401 7.7675 17.5781 Silicon starvation,12h 23.3013 23.3013 23.3013