condition mean min max 12pM Fe,Midday 42.5853 42.5853 42.5853 12pM Fe,Midnight 61.00305 57.5885 64.4176 58pM Fe,Midday 27.4047 27.4047 27.4047 58pM Fe,Midnight 54.97871428571428 0.0 101.426 233pM Fe,Midnight 20.589466666666667 18.0824 23.2872 1160pM Fe,Midday 58.87961428571429 43.3594 73.8557 1160pM Fe,Midnight 14.035341666666667 4.90767 28.6703 High carbon,Dark 23.491246 0.0 52.1751 High carbon,Light 65.81750769230769 14.1802 173.564 Low carbon,Dark 9.43631 9.43631 9.43631 Phloroglucinol 10.33129 6.59396 15.9092 Silicon starvation,12h 41.8514 41.8514 41.8514