condition mean min max 12pM Fe,Midday 45.685 45.685 45.685 12pM Fe,Midnight 24.83665 20.1171 29.5562 58pM Fe,Midday 36.0541 36.0541 36.0541 58pM Fe,Midnight 16.65354285714286 0.0 24.3181 233pM Fe,Midnight 20.007466666666666 18.1985 23.4542 1160pM Fe,Midday 33.1763 23.3034 39.4259 1160pM Fe,Midnight 14.292591666666667 12.6191 17.2063 High carbon,Dark 16.332899333333334 4.31189 24.0511 High carbon,Light 22.888815384615384 3.87681 43.7778 Low carbon,Dark 14.0447 14.0447 14.0447 Phloroglucinol 21.923066666666667 16.544 25.2401 Silicon starvation,12h 55.7335 55.7335 55.7335