condition mean min max 12pM Fe,Midday 15.9235 15.9235 15.9235 12pM Fe,Midnight 4.274175 3.97435 4.574 58pM Fe,Midday 11.8355 11.8355 11.8355 58pM Fe,Midnight 2.16981 0.0 4.52529 233pM Fe,Midnight 1.0631873333333333 0.789672 1.20989 1160pM Fe,Midday 7.331871428571429 5.79293 9.23183 1160pM Fe,Midnight 0.8885669166666667 0.0 2.39474 High carbon,Dark 5.816886 1.22792 14.9555 High carbon,Light 4.322636615384615 0.0 10.7219 Low carbon,Dark 7.24502 7.24502 7.24502 Phloroglucinol 0.6803766666666666 0.399123 1.20806 Silicon starvation,12h 2.17439 2.17439 2.17439