condition mean min max 12pM Fe,Midday 27.3646 27.3646 27.3646 12pM Fe,Midnight 24.82995 23.8256 25.8343 58pM Fe,Midday 22.8969 22.8969 22.8969 58pM Fe,Midnight 20.38502857142857 19.219 22.997 233pM Fe,Midnight 14.491999999999999 13.2548 15.6799 1160pM Fe,Midday 17.504142857142856 15.5449 19.2217 1160pM Fe,Midnight 12.878438333333333 8.81934 18.876 High carbon,Dark 15.966015333333333 3.28103 23.369 High carbon,Light 11.640351615384615 0.350522 18.692 Low carbon,Dark 9.77631 9.77631 9.77631 Phloroglucinol 7.672326666666667 4.00814 14.1038 Silicon starvation,12h 10.895 10.895 10.895