condition mean min max 12pM Fe,Midday 33.6997 33.6997 33.6997 12pM Fe,Midnight 22.538800000000002 21.5057 23.5719 58pM Fe,Midday 31.8522 31.8522 31.8522 58pM Fe,Midnight 13.0764 0.0 17.4536 233pM Fe,Midnight 17.0107 14.9556 18.4282 1160pM Fe,Midday 28.11744285714286 25.7339 30.5974 1160pM Fe,Midnight 10.13762 7.94084 16.8228 High carbon,Dark 11.328736666666666 1.3701 31.3225 High carbon,Light 13.630898692307692 0.546949 29.8123 Low carbon,Dark 13.0679 13.0679 13.0679 Phloroglucinol 9.65195 7.67894 13.0452 Silicon starvation,12h 85.6297 85.6297 85.6297