condition mean min max 12pM Fe,Midday 15.4477 15.4477 15.4477 12pM Fe,Midnight 13.93225 12.4295 15.435 58pM Fe,Midday 20.6373 20.6373 20.6373 58pM Fe,Midnight 12.784357142857143 0.0 18.7472 233pM Fe,Midnight 28.082066666666666 25.0884 31.7322 1160pM Fe,Midday 14.052828571428572 11.1951 16.1639 1160pM Fe,Midnight 16.1408225 3.50159 33.5274 High carbon,Dark 36.678856 7.68114 61.4212 High carbon,Light 21.484386153846152 0.4249 50.286 Low carbon,Dark 24.1176 24.1176 24.1176 Phloroglucinol 7.5312166666666664 6.12791 8.87363 Silicon starvation,12h 23.2657 23.2657 23.2657