condition mean min max 12pM Fe,Midday 16.9617 16.9617 16.9617 12pM Fe,Midnight 18.06175 16.2998 19.8237 58pM Fe,Midday 18.4281 18.4281 18.4281 58pM Fe,Midnight 15.745042857142858 0.0 23.072 233pM Fe,Midnight 18.5142 16.7214 19.6556 1160pM Fe,Midday 12.114214285714285 10.4681 14.5997 1160pM Fe,Midnight 10.478818333333333 7.07716 15.5865 High carbon,Dark 15.378761333333333 3.40293 30.2848 High carbon,Light 11.956156153846154 6.68924 15.7285 Low carbon,Dark 20.2355 20.2355 20.2355 Phloroglucinol 6.428566666666667 6.32336 6.58253 Silicon starvation,12h 14.0484 14.0484 14.0484