condition mean min max 12pM Fe,Midday 1.52421 1.52421 1.52421 12pM Fe,Midnight 14.5932 12.681 16.5054 58pM Fe,Midday 0.449565 0.449565 0.449565 58pM Fe,Midnight 9.175072857142856 0.0 12.3332 233pM Fe,Midnight 9.739243333333333 9.43653 10.1834 1160pM Fe,Midday 1.6047071428571429 1.09987 1.96037 1160pM Fe,Midnight 6.156529166666667 3.83619 9.16911 High carbon,Dark 6.040726066666666 0.979481 12.2854 High carbon,Light 3.8260983076923076 0.313591 15.5228 Low carbon,Dark 7.15517 7.15517 7.15517 Phloroglucinol 5.434643333333334 2.65381 7.49496 Silicon starvation,12h 8.96137 8.96137 8.96137