condition mean min max 12pM Fe,Midday 7.46373 7.46373 7.46373 12pM Fe,Midnight 9.63965 9.161 10.1183 58pM Fe,Midday 9.31672 9.31672 9.31672 58pM Fe,Midnight 8.92131 0.0 12.5468 233pM Fe,Midnight 5.365053333333334 4.95722 5.99174 1160pM Fe,Midday 6.0380071428571425 4.29721 7.02466 1160pM Fe,Midnight 7.158899166666667 2.5663 12.1031 High carbon,Dark 11.397612 2.25064 28.4681 High carbon,Light 7.991533076923076 1.33251 19.121 Low carbon,Dark 15.1604 15.1604 15.1604 Phloroglucinol 9.033063333333333 6.71953 10.7737 Silicon starvation,12h 15.9249 15.9249 15.9249