condition mean min max 12pM Fe,Midday 56.7608 56.7608 56.7608 12pM Fe,Midnight 41.833600000000004 40.659 43.0082 58pM Fe,Midday 28.3425 28.3425 28.3425 58pM Fe,Midnight 22.601342857142857 0.0 29.4357 233pM Fe,Midnight 26.117900000000002 23.0679 29.1885 1160pM Fe,Midday 24.394157142857143 19.8614 28.5888 1160pM Fe,Midnight 48.55105666666667 7.44851 84.4501 High carbon,Dark 31.883533333333332 11.3756 66.8184 High carbon,Light 35.92495 2.7731 90.0714 Low carbon,Dark 30.6172 30.6172 30.6172 Phloroglucinol 42.11646666666667 31.7306 48.4593 Silicon starvation,12h 71.8265 71.8265 71.8265