condition mean min max 12pM Fe,Midday 11.876 11.876 11.876 12pM Fe,Midnight 12.9403 12.6841 13.1965 58pM Fe,Midday 16.2665 16.2665 16.2665 58pM Fe,Midnight 14.241494285714285 4.17374 57.8323 233pM Fe,Midnight 8.47579 7.96698 9.21969 1160pM Fe,Midday 6.038995714285714 4.22616 7.54805 1160pM Fe,Midnight 1.6447795833333334 0.142514 4.32647 High carbon,Dark 7.195184 0.0 18.0311 High carbon,Light 2.3937116153846154 0.0 7.30664 Low carbon,Dark 7.93071 7.93071 7.93071 Phloroglucinol 1.424837 0.815541 2.32759 Silicon starvation,12h 13.0513 13.0513 13.0513