condition mean min max 12pM Fe,Midday 53.0599 53.0599 53.0599 12pM Fe,Midnight 44.9239 42.1583 47.6895 58pM Fe,Midday 41.5485 41.5485 41.5485 58pM Fe,Midnight 23.0634 0.0 32.4203 233pM Fe,Midnight 23.74236666666667 22.2188 26.6107 1160pM Fe,Midday 23.455814285714286 21.4824 26.9371 1160pM Fe,Midnight 19.087366666666668 10.4749 29.539 High carbon,Dark 28.08406 8.9306 42.4696 High carbon,Light 25.167559230769232 9.21447 37.1736 Low carbon,Dark 21.873 21.873 21.873 Phloroglucinol 156.11766666666668 130.523 171.488 Silicon starvation,12h 61.2694 61.2694 61.2694