condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.5838575 0.385711 0.782004 58pM Fe,Midday 0.332683 0.332683 0.332683 58pM Fe,Midnight 0.4265204285714286 0.0 1.16919 233pM Fe,Midnight 0.23675633333333332 0.0 0.476122 1160pM Fe,Midday 0.044409 0.0 0.310863 1160pM Fe,Midnight 0.90645375 0.0 1.9394 High carbon,Dark 1.1502050666666666 0.0 2.90634 High carbon,Light 0.473759 0.0 1.39236 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.6625206666666666 0.0 1.28077 Silicon starvation,12h 0.0 0.0 0.0