condition mean min max 12pM Fe,Midday 68.1199 68.1199 68.1199 12pM Fe,Midnight 54.9096 44.5335 65.2857 58pM Fe,Midday 50.2297 50.2297 50.2297 58pM Fe,Midnight 35.45377142857143 0.0 45.9388 233pM Fe,Midnight 34.20643333333334 29.1776 37.6733 1160pM Fe,Midday 44.63655714285714 35.7821 55.8785 1160pM Fe,Midnight 28.747125 20.0953 44.1617 High carbon,Dark 31.79766 11.9469 107.966 High carbon,Light 20.010993076923075 5.62105 54.559 Low carbon,Dark 19.5339 19.5339 19.5339 Phloroglucinol 31.415333333333333 25.1092 35.4667 Silicon starvation,12h 54.7173 54.7173 54.7173