condition mean min max 12pM Fe,Midday 4.15982 4.15982 4.15982 12pM Fe,Midnight 1.74831 1.3336 2.16302 58pM Fe,Midday 1.61035 1.61035 1.61035 58pM Fe,Midnight 0.4582407142857143 0.0 0.877731 233pM Fe,Midnight 0.162566 0.161166 0.164619 1160pM Fe,Midday 0.5757982857142857 0.0 1.02226 1160pM Fe,Midnight 0.0881605 0.0 0.223516 High carbon,Dark 0.7211854 0.0 2.19515 High carbon,Light 0.2847542307692308 0.0 1.13646 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 13.154566666666666 11.8346 15.4104 Silicon starvation,12h 0.0 0.0 0.0