condition mean min max 12pM Fe,Midday 17.6348 17.6348 17.6348 12pM Fe,Midnight 15.030850000000001 14.4731 15.5886 58pM Fe,Midday 21.0656 21.0656 21.0656 58pM Fe,Midnight 14.737414285714285 0.0 21.8076 233pM Fe,Midnight 7.87444 3.9081 11.4784 1160pM Fe,Midday 18.794642857142858 12.6562 25.7687 1160pM Fe,Midnight 7.747168333333333 5.07009 11.1402 High carbon,Dark 22.828771333333332 1.5396 34.0796 High carbon,Light 22.93118923076923 1.03819 50.4369 Low carbon,Dark 25.7903 25.7903 25.7903 Phloroglucinol 32.5376 24.8635 37.9069 Silicon starvation,12h 9.53198 9.53198 9.53198