condition mean min max 12pM Fe,Midday 131.16 131.16 131.16 12pM Fe,Midnight 92.3382 88.0618 96.6146 58pM Fe,Midday 103.539 103.539 103.539 58pM Fe,Midnight 62.62884285714286 0.0 84.7263 233pM Fe,Midnight 35.682 32.3218 38.6387 1160pM Fe,Midday 56.83811428571428 49.634 62.4449 1160pM Fe,Midnight 37.2526 31.033 49.0179 High carbon,Dark 45.392112 2.56247 113.211 High carbon,Light 40.072439384615386 0.883402 97.8526 Low carbon,Dark 59.7684 59.7684 59.7684 Phloroglucinol 4.337336666666666 1.78876 7.29746 Silicon starvation,12h 0.919889 0.919889 0.919889