condition mean min max 12pM Fe,Midday 33.3496 33.3496 33.3496 12pM Fe,Midnight 20.1293 20.045 20.2136 58pM Fe,Midday 28.9662 28.9662 28.9662 58pM Fe,Midnight 21.497714285714288 11.7808 72.7321 233pM Fe,Midnight 14.366033333333334 13.7321 14.7805 1160pM Fe,Midday 25.049385714285716 21.7582 27.498 1160pM Fe,Midnight 3.4453358333333335 2.5505 4.69711 High carbon,Dark 11.42798 4.46559 18.1915 High carbon,Light 7.957053923076923 0.415721 18.9303 Low carbon,Dark 7.14801 7.14801 7.14801 Phloroglucinol 8.613723333333333 5.38469 13.7302 Silicon starvation,12h 16.5885 16.5885 16.5885