condition mean min max 12pM Fe,Midday 59.668 59.668 59.668 12pM Fe,Midnight 57.38995 53.7045 61.0754 58pM Fe,Midday 44.2737 44.2737 44.2737 58pM Fe,Midnight 35.46351428571428 0.0 51.7798 233pM Fe,Midnight 18.040566666666667 17.8298 18.2126 1160pM Fe,Midday 59.051785714285714 53.9418 63.6216 1160pM Fe,Midnight 6.360659166666667 3.68053 8.61968 High carbon,Dark 24.03428 11.2563 43.8457 High carbon,Light 13.176922307692308 3.02972 27.2768 Low carbon,Dark 23.2613 23.2613 23.2613 Phloroglucinol 26.983766666666668 20.9582 37.9174 Silicon starvation,12h 15.9851 15.9851 15.9851