condition mean min max 12pM Fe,Midday 19.3114 19.3114 19.3114 12pM Fe,Midnight 20.2903 15.536 25.0446 58pM Fe,Midday 17.0877 17.0877 17.0877 58pM Fe,Midnight 26.059728571428572 0.0 39.4861 233pM Fe,Midnight 29.4037 26.2009 31.3765 1160pM Fe,Midday 25.3089 21.2971 33.2298 1160pM Fe,Midnight 15.500491666666667 10.1605 22.1898 High carbon,Dark 20.162392666666666 1.15499 29.8493 High carbon,Light 17.54408923076923 3.43212 33.4472 Low carbon,Dark 17.7625 17.7625 17.7625 Phloroglucinol 12.32533 9.68149 14.0519 Silicon starvation,12h 28.8165 28.8165 28.8165