condition mean min max 12pM Fe,Midday 27.1052 27.1052 27.1052 12pM Fe,Midnight 26.37135 24.9358 27.8069 58pM Fe,Midday 28.2887 28.2887 28.2887 58pM Fe,Midnight 38.19728571428571 20.3609 123.532 233pM Fe,Midnight 19.113366666666668 18.0426 19.9101 1160pM Fe,Midday 20.497642857142857 15.2279 25.9607 1160pM Fe,Midnight 17.789258333333333 12.093 24.1035 High carbon,Dark 27.09856 13.2032 40.8657 High carbon,Light 24.75867 9.81981 46.0765 Low carbon,Dark 20.8931 20.8931 20.8931 Phloroglucinol 37.80426666666667 32.9547 44.7464 Silicon starvation,12h 35.9847 35.9847 35.9847