condition mean min max 12pM Fe,Midday 19.9007 19.9007 19.9007 12pM Fe,Midnight 23.79255 22.6324 24.9527 58pM Fe,Midday 17.712 17.712 17.712 58pM Fe,Midnight 16.869842857142856 0.0 21.1376 233pM Fe,Midnight 22.208033333333333 21.0012 23.7349 1160pM Fe,Midday 14.692714285714285 12.7014 17.663 1160pM Fe,Midnight 27.101133333333333 19.741 33.684 High carbon,Dark 26.079273333333333 15.9117 39.2628 High carbon,Light 19.42998923076923 2.67996 30.639 Low carbon,Dark 10.7793 10.7793 10.7793 Phloroglucinol 22.9424 18.596 27.2753 Silicon starvation,12h 35.1605 35.1605 35.1605