condition mean min max 12pM Fe,Midday 36.6366 36.6366 36.6366 12pM Fe,Midnight 37.6918 34.881 40.5026 58pM Fe,Midday 35.0009 35.0009 35.0009 58pM Fe,Midnight 21.816399999999998 0.0 28.5506 233pM Fe,Midnight 19.195766666666668 18.5759 20.434 1160pM Fe,Midday 18.90752857142857 16.7335 20.3868 1160pM Fe,Midnight 9.801313333333333 4.8821 17.6817 High carbon,Dark 15.908703333333333 2.03759 32.9106 High carbon,Light 8.605576923076923 3.57686 19.9144 Low carbon,Dark 19.7331 19.7331 19.7331 Phloroglucinol 9.90372 6.32326 13.1511 Silicon starvation,12h 10.8052 10.8052 10.8052