condition mean min max 12pM Fe,Midday 40.9872 40.9872 40.9872 12pM Fe,Midnight 29.18965 27.2745 31.1048 58pM Fe,Midday 31.3664 31.3664 31.3664 58pM Fe,Midnight 20.90037142857143 0.0 31.5778 233pM Fe,Midnight 18.4631 17.0677 20.6964 1160pM Fe,Midday 23.66925714285714 19.9483 28.4772 1160pM Fe,Midnight 10.418610833333334 5.92918 15.7948 High carbon,Dark 23.431654666666667 2.92622 32.68 High carbon,Light 17.709504307692306 0.517986 29.2988 Low carbon,Dark 14.4006 14.4006 14.4006 Phloroglucinol 18.953066666666665 13.4203 26.1636 Silicon starvation,12h 27.1021 27.1021 27.1021