condition mean min max 12pM Fe,Midday 29.4771 29.4771 29.4771 12pM Fe,Midnight 26.64385 25.6158 27.6719 58pM Fe,Midday 25.2967 25.2967 25.2967 58pM Fe,Midnight 20.2245 17.7591 28.7088 233pM Fe,Midnight 19.189066666666665 18.7734 19.4136 1160pM Fe,Midday 21.560214285714284 20.1926 22.6383 1160pM Fe,Midnight 11.695285833333333 8.88113 14.1376 High carbon,Dark 16.008251333333334 4.47993 30.7654 High carbon,Light 12.472993076923077 2.94549 23.0111 Low carbon,Dark 11.2858 11.2858 11.2858 Phloroglucinol 18.042266666666666 13.3093 22.2836 Silicon starvation,12h 19.2988 19.2988 19.2988