condition mean min max 12pM Fe,Midday 39.7187 39.7187 39.7187 12pM Fe,Midnight 32.25505 29.105 35.4051 58pM Fe,Midday 20.0829 20.0829 20.0829 58pM Fe,Midnight 114.2856 15.1174 672.356 233pM Fe,Midnight 13.3987 10.5521 17.6683 1160pM Fe,Midday 24.970814285714287 17.8481 34.4038 1160pM Fe,Midnight 3.1248541666666667 0.0 8.53333 High carbon,Dark 9.959912 0.0 34.3777 High carbon,Light 9.782183076923078 0.0 30.1492 Low carbon,Dark 9.22021 9.22021 9.22021 Phloroglucinol 3.66953 3.55554 3.86577 Silicon starvation,12h 29.0555 29.0555 29.0555