condition mean min max 12pM Fe,Midday 21.4888 21.4888 21.4888 12pM Fe,Midnight 17.3664 17.0089 17.7239 58pM Fe,Midday 11.0643 11.0643 11.0643 58pM Fe,Midnight 10.309137142857143 0.0 13.7742 233pM Fe,Midnight 6.9549199999999995 5.74173 7.62419 1160pM Fe,Midday 6.867161428571428 5.1259 8.5244 1160pM Fe,Midnight 7.161955833333334 3.06456 12.0534 High carbon,Dark 9.065701 0.927745 17.8091 High carbon,Light 6.115683230769231 0.436232 16.1975 Low carbon,Dark 5.56889 5.56889 5.56889 Phloroglucinol 29.292633333333335 20.6044 42.2209 Silicon starvation,12h 10.7508 10.7508 10.7508