condition mean min max 12pM Fe,Midday 0.386234 0.386234 0.386234 12pM Fe,Midnight 0.6011435 0.198117 1.00417 58pM Fe,Midday 0.854395 0.854395 0.854395 58pM Fe,Midnight 0.25848371428571426 0.0 0.690249 233pM Fe,Midnight 0.5642453333333333 0.365637 0.837988 1160pM Fe,Midday 0.15096514285714285 0.0 0.313545 1160pM Fe,Midnight 0.04756083333333334 0.0 0.280154 High carbon,Dark 3.6804034 0.0 14.6892 High carbon,Light 3.9195283076923078 0.0 15.8275 Low carbon,Dark 3.13808 3.13808 3.13808 Phloroglucinol 27.300733333333334 18.4199 43.2278 Silicon starvation,12h 24.7506 24.7506 24.7506