condition mean min max 12pM Fe,Midday 12.738 12.738 12.738 12pM Fe,Midnight 12.5221 11.4741 13.5701 58pM Fe,Midday 17.4566 17.4566 17.4566 58pM Fe,Midnight 12.108585714285715 0.0 16.141 233pM Fe,Midnight 40.119566666666664 38.9034 41.114 1160pM Fe,Midday 3.4714214285714284 2.80963 4.29632 1160pM Fe,Midnight 45.681641666666664 20.6065 84.555 High carbon,Dark 67.64241333333334 30.0109 156.992 High carbon,Light 53.81045692307693 5.66569 115.412 Low carbon,Dark 29.5336 29.5336 29.5336 Phloroglucinol 20.15077666666667 7.26753 27.2554 Silicon starvation,12h 68.2327 68.2327 68.2327