condition mean min max 12pM Fe,Midday 28.7467 28.7467 28.7467 12pM Fe,Midnight 36.77745 34.4061 39.1488 58pM Fe,Midday 29.6758 29.6758 29.6758 58pM Fe,Midnight 42.9949 0.0 59.5695 233pM Fe,Midnight 43.233266666666665 40.4939 45.5045 1160pM Fe,Midday 43.42384285714286 38.1414 53.2855 1160pM Fe,Midnight 29.155391666666667 19.9973 37.7737 High carbon,Dark 27.079734666666667 3.2544 66.4577 High carbon,Light 18.08107076923077 1.92027 42.0718 Low carbon,Dark 23.3562 23.3562 23.3562 Phloroglucinol 15.274733333333334 3.86002 35.9061 Silicon starvation,12h 4.28371 4.28371 4.28371