condition mean min max 12pM Fe,Midday 51.5029 51.5029 51.5029 12pM Fe,Midnight 49.179950000000005 45.9774 52.3825 58pM Fe,Midday 40.7091 40.7091 40.7091 58pM Fe,Midnight 40.8887 39.9302 43.2046 233pM Fe,Midnight 31.9958 31.3549 32.6992 1160pM Fe,Midday 34.92462857142857 33.8218 35.7437 1160pM Fe,Midnight 21.328208333333333 17.5357 25.7213 High carbon,Dark 26.022258 9.60867 45.1527 High carbon,Light 21.62629 6.29345 46.513 Low carbon,Dark 22.2806 22.2806 22.2806 Phloroglucinol 26.708133333333333 17.823 42.8865 Silicon starvation,12h 29.0457 29.0457 29.0457