condition mean min max 12pM Fe,Midday 0.848525 0.848525 0.848525 12pM Fe,Midnight 27.999049999999997 21.1784 34.8197 58pM Fe,Midday 3.75407 3.75407 3.75407 58pM Fe,Midnight 34.43002857142857 0.0 57.3916 233pM Fe,Midnight 25.622466666666668 22.5653 27.3519 1160pM Fe,Midday 3.661273857142857 0.0 7.71729 1160pM Fe,Midnight 17.692541666666667 12.761 22.6221 High carbon,Dark 7.714352666666667 0.0 21.2065 High carbon,Light 5.468836923076923 0.0 21.046 Low carbon,Dark 5.51529 5.51529 5.51529 Phloroglucinol 3.95227 1.1562 7.51036 Silicon starvation,12h 4.82784 4.82784 4.82784