condition mean min max 12pM Fe,Midday 53.8552 53.8552 53.8552 12pM Fe,Midnight 43.5874 41.5895 45.5853 58pM Fe,Midday 49.069 49.069 49.069 58pM Fe,Midnight 31.57944285714286 0.0 41.5539 233pM Fe,Midnight 39.396766666666664 36.1257 43.5015 1160pM Fe,Midday 31.848914285714287 28.3379 34.6665 1160pM Fe,Midnight 29.640925 26.828 33.4644 High carbon,Dark 48.95014666666667 34.4487 85.0752 High carbon,Light 46.24414615384615 24.6241 85.1121 Low carbon,Dark 39.5684 39.5684 39.5684 Phloroglucinol 71.68953333333333 58.7698 85.1293 Silicon starvation,12h 85.4535 85.4535 85.4535