condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.207836 0.0 0.415672 58pM Fe,Midday 0.358525 0.358525 0.358525 58pM Fe,Midnight 0.1236002857142857 0.0 0.35984 233pM Fe,Midnight 0.08551766666666666 0.0 0.256553 1160pM Fe,Midday 0.046164 0.0 0.167505 1160pM Fe,Midnight 0.10760349999999999 0.0 0.342426 High carbon,Dark 0.39131126666666666 0.0 2.85762 High carbon,Light 0.8682264615384615 0.0 4.2629 Low carbon,Dark 8.55929 8.55929 8.55929 Phloroglucinol 0.680838 0.0 1.28082 Silicon starvation,12h 2.1901 2.1901 2.1901