condition mean min max 12pM Fe,Midday 90.7731 90.7731 90.7731 12pM Fe,Midnight 60.3885 55.6622 65.1148 58pM Fe,Midday 67.2682 67.2682 67.2682 58pM Fe,Midnight 54.395985714285715 47.0865 73.3377 233pM Fe,Midnight 28.669666666666668 27.1703 30.1283 1160pM Fe,Midday 59.9799 57.0569 62.6326 1160pM Fe,Midnight 38.05789166666667 25.3638 48.8991 High carbon,Dark 48.839506666666665 26.6567 79.3679 High carbon,Light 38.36814076923077 6.94558 64.9044 Low carbon,Dark 20.4493 20.4493 20.4493 Phloroglucinol 75.80876666666667 60.1773 98.3175 Silicon starvation,12h 36.7398 36.7398 36.7398