condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.110707 0.0 0.221414 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.05088828571428571 0.0 0.356218 233pM Fe,Midnight 0.22489499999999998 0.0 0.401371 1160pM Fe,Midday 0.025492714285714285 0.0 0.178449 1160pM Fe,Midnight 3.8785061666666665 0.0 6.74875 High carbon,Dark 3.2792758666666666 0.0 12.3004 High carbon,Light 1.2309285384615385 0.0 4.65493 Low carbon,Dark 0.350711 0.350711 0.350711 Phloroglucinol 34.738033333333334 16.2291 46.6659 Silicon starvation,12h 0.0 0.0 0.0