condition mean min max 12pM Fe,Midday 14.918 14.918 14.918 12pM Fe,Midnight 13.11945 11.467 14.7719 58pM Fe,Midday 12.2819 12.2819 12.2819 58pM Fe,Midnight 8.652224285714286 0.0 10.8769 233pM Fe,Midnight 8.025206666666667 7.4745 8.84557 1160pM Fe,Midday 10.246275714285714 7.24282 12.1105 1160pM Fe,Midnight 4.080395 2.35599 5.96731 High carbon,Dark 7.523952 2.71807 17.5726 High carbon,Light 5.936764615384615 1.05432 19.856 Low carbon,Dark 7.37778 7.37778 7.37778 Phloroglucinol 6.772066666666667 5.85268 8.36532 Silicon starvation,12h 15.2782 15.2782 15.2782