condition mean min max 12pM Fe,Midday 26.127 26.127 26.127 12pM Fe,Midnight 25.6363 24.7515 26.5211 58pM Fe,Midday 31.7463 31.7463 31.7463 58pM Fe,Midnight 24.366685714285715 18.2937 44.4393 233pM Fe,Midnight 21.435866666666666 20.4216 22.1879 1160pM Fe,Midday 19.650457142857142 18.2849 21.0069 1160pM Fe,Midnight 16.289958333333335 11.5578 24.1987 High carbon,Dark 14.489520666666667 8.72144 18.4263 High carbon,Light 12.443226153846155 5.78696 17.6601 Low carbon,Dark 14.6258 14.6258 14.6258 Phloroglucinol 17.872700000000002 15.0954 22.2292 Silicon starvation,12h 37.5549 37.5549 37.5549