condition mean min max 12pM Fe,Midday 0.19494 0.19494 0.19494 12pM Fe,Midnight 0.505454 0.199987 0.810921 58pM Fe,Midday 0.172492 0.172492 0.172492 58pM Fe,Midnight 0.7112265714285714 0.0 1.31625 233pM Fe,Midnight 0.20245466666666667 0.121403 0.362529 1160pM Fe,Midday 0.17495 0.0 0.329189 1160pM Fe,Midnight 0.3172351666666667 0.0 0.78362 High carbon,Dark 0.9293780666666667 0.0 2.92886 High carbon,Light 0.49864084615384613 0.0 1.08289 Low carbon,Dark 0.316771 0.316771 0.316771 Phloroglucinol 2.40156 0.488619 5.97659 Silicon starvation,12h 0.332745 0.332745 0.332745