condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.0 0.0 0.0 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.0 0.0 0.0 233pM Fe,Midnight 0.10701933333333333 0.0 0.1609 1160pM Fe,Midday 0.029024571428571427 0.0 0.203172 1160pM Fe,Midnight 0.03473975 0.0 0.216751 High carbon,Dark 0.5119515333333333 0.0 1.39994 High carbon,Light 0.06935323076923078 0.0 0.5148 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.5106773333333333 0.161896 0.880111 Silicon starvation,12h 0.0 0.0 0.0