condition mean min max 12pM Fe,Midday 408.344 408.344 408.344 12pM Fe,Midnight 337.954 337.435 338.473 58pM Fe,Midday 359.794 359.794 359.794 58pM Fe,Midnight 339.4321428571429 285.687 419.026 233pM Fe,Midnight 217.58700000000002 197.333 233.336 1160pM Fe,Midday 295.19971428571426 267.95 319.077 1160pM Fe,Midnight 272.28875 212.179 324.822 High carbon,Dark 299.58482 97.1483 434.901 High carbon,Light 337.36184615384616 175.851 760.127 Low carbon,Dark 521.857 521.857 521.857 Phloroglucinol 187.02266666666668 178.477 197.038 Silicon starvation,12h 130.658 130.658 130.658