condition mean min max 12pM Fe,Midday 21.5981 21.5981 21.5981 12pM Fe,Midnight 13.665700000000001 12.9008 14.4306 58pM Fe,Midday 18.229 18.229 18.229 58pM Fe,Midnight 10.32537142857143 0.0 13.3679 233pM Fe,Midnight 10.071306666666667 8.44512 10.8985 1160pM Fe,Midday 12.3492 11.5388 13.2744 1160pM Fe,Midnight 4.0357 2.71128 6.60761 High carbon,Dark 8.004096666666667 3.76457 16.0041 High carbon,Light 6.89406 1.56494 12.3589 Low carbon,Dark 5.93935 5.93935 5.93935 Phloroglucinol 6.4305666666666665 4.65013 9.80988 Silicon starvation,12h 22.0566 22.0566 22.0566