condition mean min max 12pM Fe,Midday 146.539 146.539 146.539 12pM Fe,Midnight 103.334 93.814 112.854 58pM Fe,Midday 144.112 144.112 144.112 58pM Fe,Midnight 68.95054285714286 55.645 76.9707 233pM Fe,Midnight 69.77 65.4091 73.0842 1160pM Fe,Midday 125.95314285714285 109.287 133.375 1160pM Fe,Midnight 39.58175 23.4275 50.8532 High carbon,Dark 218.3026 51.109 462.25 High carbon,Light 220.4823076923077 121.678 508.668 Low carbon,Dark 141.944 141.944 141.944 Phloroglucinol 49.698966666666664 41.5756 53.9353 Silicon starvation,12h 158.159 158.159 158.159