condition mean min max 12pM Fe,Midday 64.2125 64.2125 64.2125 12pM Fe,Midnight 47.234849999999994 46.5781 47.8916 58pM Fe,Midday 43.0441 43.0441 43.0441 58pM Fe,Midnight 34.29627142857143 0.0 46.5318 233pM Fe,Midnight 41.6274 39.5856 44.2279 1160pM Fe,Midday 48.07071428571429 42.8448 56.1923 1160pM Fe,Midnight 12.993964166666666 7.49817 23.7472 High carbon,Dark 25.24141 6.38156 42.1996 High carbon,Light 26.79637 1.52738 65.1926 Low carbon,Dark 35.3079 35.3079 35.3079 Phloroglucinol 9.781506666666667 7.07038 13.9422 Silicon starvation,12h 45.0228 45.0228 45.0228