condition mean min max 12pM Fe,Midday 81.2404 81.2404 81.2404 12pM Fe,Midnight 47.3846 44.1062 50.663 58pM Fe,Midday 71.3912 71.3912 71.3912 58pM Fe,Midnight 40.3214 33.2233 49.6218 233pM Fe,Midnight 22.4333 21.373 23.1237 1160pM Fe,Midday 60.72978571428571 55.5139 64.2332 1160pM Fe,Midnight 169.82461666666666 25.1991 274.947 High carbon,Dark 47.470393333333334 16.0864 155.088 High carbon,Light 56.5685 19.7226 117.8 Low carbon,Dark 29.941 29.941 29.941 Phloroglucinol 134.02633333333333 118.172 152.762 Silicon starvation,12h 25.8914 25.8914 25.8914