condition mean min max 12pM Fe,Midday 32.1291 32.1291 32.1291 12pM Fe,Midnight 22.254800000000003 21.7523 22.7573 58pM Fe,Midday 35.4778 35.4778 35.4778 58pM Fe,Midnight 26.98292857142857 16.5523 68.2516 233pM Fe,Midnight 13.955566666666668 13.0798 14.5281 1160pM Fe,Midday 20.9922 18.8926 25.716 1160pM Fe,Midnight 9.826859166666667 8.66425 11.4445 High carbon,Dark 14.620150666666667 5.41621 30.7529 High carbon,Light 11.462472307692307 2.12188 29.7965 Low carbon,Dark 16.2662 16.2662 16.2662 Phloroglucinol 13.2899 11.0252 16.2239 Silicon starvation,12h 16.9731 16.9731 16.9731