condition mean min max 12pM Fe,Midday 28.8432 28.8432 28.8432 12pM Fe,Midnight 27.590049999999998 25.034 30.1461 58pM Fe,Midday 25.5218 25.5218 25.5218 58pM Fe,Midnight 31.796442857142857 22.3394 77.0929 233pM Fe,Midnight 19.9711 19.0868 20.7029 1160pM Fe,Midday 24.298857142857145 21.7425 26.9858 1160pM Fe,Midnight 8.3161275 6.00396 10.1892 High carbon,Dark 12.909256 1.44812 24.9087 High carbon,Light 7.926717923076923 0.304217 20.5255 Low carbon,Dark 16.2104 16.2104 16.2104 Phloroglucinol 14.2636 11.6189 17.804 Silicon starvation,12h 10.4881 10.4881 10.4881