condition mean min max 12pM Fe,Midday 109.75 109.75 109.75 12pM Fe,Midnight 71.5739 58.0859 85.0619 58pM Fe,Midday 79.5621 79.5621 79.5621 58pM Fe,Midnight 43.28162857142857 0.0 57.1826 233pM Fe,Midnight 17.042166666666667 13.066 20.4375 1160pM Fe,Midday 35.516242857142856 28.9115 40.7615 1160pM Fe,Midnight 21.521791666666665 16.0423 27.7964 High carbon,Dark 34.22197466666667 3.16692 73.3784 High carbon,Light 25.013153846153845 5.82285 55.3186 Low carbon,Dark 14.6111 14.6111 14.6111 Phloroglucinol 8.05232 5.28626 10.1061 Silicon starvation,12h 19.732 19.732 19.732