condition mean min max 12pM Fe,Midday 8.4089 8.4089 8.4089 12pM Fe,Midnight 14.135449999999999 13.6258 14.6451 58pM Fe,Midday 5.45066 5.45066 5.45066 58pM Fe,Midnight 9.309404285714285 0.0 12.6264 233pM Fe,Midnight 11.8061 10.6677 12.8156 1160pM Fe,Midday 4.5496614285714285 3.67183 5.08007 1160pM Fe,Midnight 5.681096666666667 2.5751 10.6333 High carbon,Dark 8.730384666666666 0.92983 13.9529 High carbon,Light 3.9812341538461538 0.662244 6.62413 Low carbon,Dark 4.44879 4.44879 4.44879 Phloroglucinol 5.7312666666666665 5.33051 5.93445 Silicon starvation,12h 10.7371 10.7371 10.7371