condition mean min max 12pM Fe,Midday 18.3943 18.3943 18.3943 12pM Fe,Midnight 16.0069 13.598 18.4158 58pM Fe,Midday 14.3152 14.3152 14.3152 58pM Fe,Midnight 11.7944 0.0 16.1391 233pM Fe,Midnight 25.4966 23.4629 26.9266 1160pM Fe,Midday 9.809397142857142 8.00223 11.9757 1160pM Fe,Midnight 28.779116666666667 10.9311 50.7142 High carbon,Dark 26.747253999999998 8.32431 56.1745 High carbon,Light 23.432971615384616 0.300201 68.888 Low carbon,Dark 15.1251 15.1251 15.1251 Phloroglucinol 7.07219 3.78301 9.58215 Silicon starvation,12h 36.6933 36.6933 36.6933