condition mean min max 12pM Fe,Midday 39.7971 39.7971 39.7971 12pM Fe,Midnight 27.0369 25.0995 28.9743 58pM Fe,Midday 25.4452 25.4452 25.4452 58pM Fe,Midnight 18.6802 0.0 27.012 233pM Fe,Midnight 13.003166666666667 12.3123 13.5288 1160pM Fe,Midday 20.374714285714287 17.768 22.7149 1160pM Fe,Midnight 9.3802225 4.44058 11.5596 High carbon,Dark 16.235679333333334 4.61865 26.8581 High carbon,Light 17.267970153846154 0.604622 35.1664 Low carbon,Dark 18.7748 18.7748 18.7748 Phloroglucinol 34.84903333333333 24.9982 48.9798 Silicon starvation,12h 46.1632 46.1632 46.1632