condition mean min max 12pM Fe,Midday 135.646 135.646 135.646 12pM Fe,Midnight 170.0195 147.712 192.327 58pM Fe,Midday 101.189 101.189 101.189 58pM Fe,Midnight 94.66014285714286 69.6825 110.193 233pM Fe,Midnight 31.0106 30.3091 31.4959 1160pM Fe,Midday 48.929342857142856 46.7444 50.9213 1160pM Fe,Midnight 44.50568333333333 37.3077 51.4399 High carbon,Dark 30.663553333333333 20.4391 41.7553 High carbon,Light 24.224895384615387 3.51968 36.9899 Low carbon,Dark 18.9841 18.9841 18.9841 Phloroglucinol 36.44063333333333 27.6855 43.949 Silicon starvation,12h 24.4918 24.4918 24.4918