condition mean min max 12pM Fe,Midday 78.1773 78.1773 78.1773 12pM Fe,Midnight 80.8981 58.8142 102.982 58pM Fe,Midday 50.7283 50.7283 50.7283 58pM Fe,Midnight 50.04898571428571 0.0 74.0574 233pM Fe,Midnight 49.9267 42.1949 61.385 1160pM Fe,Midday 39.92135714285714 21.1548 65.2394 1160pM Fe,Midnight 40.2798625 8.23095 90.6853 High carbon,Dark 75.43706666666667 23.4916 180.856 High carbon,Light 37.67645076923077 0.0 127.767 Low carbon,Dark 33.876 33.876 33.876 Phloroglucinol 43.997566666666664 39.1903 53.2622 Silicon starvation,12h 11.8615 11.8615 11.8615