condition mean min max 12pM Fe,Midday 70.832 70.832 70.832 12pM Fe,Midnight 39.3842 39.1897 39.5787 58pM Fe,Midday 60.8432 60.8432 60.8432 58pM Fe,Midnight 35.33772857142857 28.6964 50.7658 233pM Fe,Midnight 23.510733333333334 22.7675 24.3002 1160pM Fe,Midday 20.998114285714287 16.8256 24.795 1160pM Fe,Midnight 102.66239166666666 87.3031 125.917 High carbon,Dark 55.931293333333336 24.2183 96.6831 High carbon,Light 72.69707538461539 0.0 165.286 Low carbon,Dark 22.0452 22.0452 22.0452 Phloroglucinol 30.043166666666668 17.6959 43.977 Silicon starvation,12h 29.5759 29.5759 29.5759