condition mean min max 12pM Fe,Midday 128.595 128.595 128.595 12pM Fe,Midnight 113.7055 105.669 121.742 58pM Fe,Midday 75.3518 75.3518 75.3518 58pM Fe,Midnight 66.02898571428571 0.0 89.6027 233pM Fe,Midnight 21.021133333333335 18.2846 22.4719 1160pM Fe,Midday 62.75787142857143 57.5988 71.5899 1160pM Fe,Midnight 36.097025 24.2006 45.7743 High carbon,Dark 21.257886 7.95349 39.0694 High carbon,Light 26.40345076923077 4.96766 67.452 Low carbon,Dark 4.65879 4.65879 4.65879 Phloroglucinol 51.99046666666667 39.5553 69.2328 Silicon starvation,12h 32.8859 32.8859 32.8859