condition mean min max 12pM Fe,Midday 5.08358 5.08358 5.08358 12pM Fe,Midnight 14.8272 13.1019 16.5525 58pM Fe,Midday 5.28048 5.28048 5.28048 58pM Fe,Midnight 10.336557142857142 0.0 15.8565 233pM Fe,Midnight 16.161933333333334 15.2544 17.1266 1160pM Fe,Midday 0.6851021428571429 0.0 1.46197 1160pM Fe,Midnight 8.09977 3.92263 14.7744 High carbon,Dark 15.665767333333333 7.30579 21.9275 High carbon,Light 8.250415615384615 0.0 19.5721 Low carbon,Dark 7.18316 7.18316 7.18316 Phloroglucinol 14.5546 14.127 15.2313 Silicon starvation,12h 8.04841 8.04841 8.04841