condition mean min max 12pM Fe,Midday 71.4095 71.4095 71.4095 12pM Fe,Midnight 36.85745 33.7559 39.959 58pM Fe,Midday 45.9538 45.9538 45.9538 58pM Fe,Midnight 36.44237142857143 0.0 52.9928 233pM Fe,Midnight 37.4632 34.8766 42.4747 1160pM Fe,Midday 30.672328571428572 23.8235 38.467 1160pM Fe,Midnight 27.377983333333333 15.5445 35.7978 High carbon,Dark 59.14530666666667 30.079 276.089 High carbon,Light 29.04568846153846 3.03553 72.5187 Low carbon,Dark 28.1304 28.1304 28.1304 Phloroglucinol 25.14503333333333 19.1531 33.9085 Silicon starvation,12h 27.7021 27.7021 27.7021