condition mean min max 12pM Fe,Midday 38.4706 38.4706 38.4706 12pM Fe,Midnight 35.5859 34.0544 37.1174 58pM Fe,Midday 31.0013 31.0013 31.0013 58pM Fe,Midnight 32.763285714285715 21.732 81.4035 233pM Fe,Midnight 20.278933333333335 19.6801 21.2927 1160pM Fe,Midday 20.632485714285714 18.1877 24.0454 1160pM Fe,Midnight 8.056834166666667 5.37912 11.2893 High carbon,Dark 19.170799333333335 4.79807 37.2016 High carbon,Light 11.090630769230769 1.07848 27.3201 Low carbon,Dark 17.861 17.861 17.861 Phloroglucinol 16.408 10.188 21.3737 Silicon starvation,12h 33.0935 33.0935 33.0935