condition mean min max 12pM Fe,Midday 32.0752 32.0752 32.0752 12pM Fe,Midnight 25.478099999999998 20.9833 29.9729 58pM Fe,Midday 30.4383 30.4383 30.4383 58pM Fe,Midnight 17.79602857142857 0.0 23.5317 233pM Fe,Midnight 33.61686666666667 30.6869 36.0205 1160pM Fe,Midday 19.068014285714288 14.221 22.6645 1160pM Fe,Midnight 27.39515 18.6863 42.3439 High carbon,Dark 41.166853333333336 19.7636 61.5364 High carbon,Light 37.255146153846155 10.4336 85.3844 Low carbon,Dark 19.6398 19.6398 19.6398 Phloroglucinol 21.447333333333333 16.8949 26.2868 Silicon starvation,12h 34.3837 34.3837 34.3837