condition mean min max 12pM Fe,Midday 1.3305 1.3305 1.3305 12pM Fe,Midnight 0.9182865 0.606643 1.22993 58pM Fe,Midday 0.915671 0.915671 0.915671 58pM Fe,Midnight 0.6790355714285714 0.0 1.18161 233pM Fe,Midnight 0.52277 0.374421 0.641491 1160pM Fe,Midday 0.5954192857142857 0.366693 0.840079 1160pM Fe,Midnight 0.1303445 0.0 0.535895 High carbon,Dark 1.1283722666666667 0.0 3.48789 High carbon,Light 0.824258076923077 0.0 2.74486 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.6121086666666666 0.373854 0.906653 Silicon starvation,12h 2.3554 2.3554 2.3554