condition mean min max 12pM Fe,Midday 83.6419 83.6419 83.6419 12pM Fe,Midnight 71.8711 69.9156 73.8266 58pM Fe,Midday 66.7488 66.7488 66.7488 58pM Fe,Midnight 49.845685714285715 0.0 67.9707 233pM Fe,Midnight 52.77316666666667 48.5514 56.1579 1160pM Fe,Midday 59.0438 55.064 63.6307 1160pM Fe,Midnight 35.9487 32.7244 40.2742 High carbon,Dark 56.667786666666665 27.0047 91.0737 High carbon,Light 52.999923076923075 23.4127 79.9556 Low carbon,Dark 69.2397 69.2397 69.2397 Phloroglucinol 78.5147 66.6488 88.5959 Silicon starvation,12h 93.9221 93.9221 93.9221