condition mean min max 12pM Fe,Midday 10.1298 10.1298 10.1298 12pM Fe,Midnight 12.16005 12.0772 12.2429 58pM Fe,Midday 5.81404 5.81404 5.81404 58pM Fe,Midnight 9.32336 0.0 14.6863 233pM Fe,Midnight 7.8724099999999995 7.16103 8.65542 1160pM Fe,Midday 4.299435714285714 3.44472 5.25831 1160pM Fe,Midnight 4.1608583333333335 2.77649 6.5878 High carbon,Dark 10.100907266666667 0.895429 19.0925 High carbon,Light 7.3713729230769225 0.644708 16.5554 Low carbon,Dark 11.5669 11.5669 11.5669 Phloroglucinol 20.9583 19.9051 22.383 Silicon starvation,12h 27.1042 27.1042 27.1042