condition mean min max 12pM Fe,Midday 20.397 20.397 20.397 12pM Fe,Midnight 23.827849999999998 22.1052 25.5505 58pM Fe,Midday 16.1484 16.1484 16.1484 58pM Fe,Midnight 18.5335 0.0 24.9657 233pM Fe,Midnight 28.090733333333333 26.5096 29.0146 1160pM Fe,Midday 20.567414285714285 17.4846 23.3558 1160pM Fe,Midnight 18.003383333333332 12.3457 20.3684 High carbon,Dark 24.1621 10.497 33.8714 High carbon,Light 25.390192307692306 9.10077 55.4419 Low carbon,Dark 19.5377 19.5377 19.5377 Phloroglucinol 29.130133333333333 24.7048 34.3076 Silicon starvation,12h 53.7505 53.7505 53.7505