condition mean min max 12pM Fe,Midday 46.6228 46.6228 46.6228 12pM Fe,Midnight 40.3067 38.743 41.8704 58pM Fe,Midday 41.3253 41.3253 41.3253 58pM Fe,Midnight 43.89335714285714 38.2092 57.2497 233pM Fe,Midnight 29.512066666666666 28.6538 31.0477 1160pM Fe,Midday 36.99735714285714 30.8378 41.2476 1160pM Fe,Midnight 24.179925 19.1854 28.0054 High carbon,Dark 35.64008666666667 17.6121 56.9524 High carbon,Light 31.696644615384614 9.38618 48.4563 Low carbon,Dark 36.5063 36.5063 36.5063 Phloroglucinol 26.142233333333333 20.3124 32.5322 Silicon starvation,12h 70.6469 70.6469 70.6469