condition mean min max 12pM Fe,Midday 42.0603 42.0603 42.0603 12pM Fe,Midnight 24.22285 23.5585 24.8872 58pM Fe,Midday 32.5114 32.5114 32.5114 58pM Fe,Midnight 20.497542857142857 0.0 27.1345 233pM Fe,Midnight 18.7287 17.1423 20.8285 1160pM Fe,Midday 21.794585714285713 16.7217 25.8522 1160pM Fe,Midnight 51.93905 10.515 80.6662 High carbon,Dark 17.832149333333334 6.48627 32.635 High carbon,Light 15.041405384615384 2.29207 23.7166 Low carbon,Dark 18.0686 18.0686 18.0686 Phloroglucinol 21.564 16.5104 28.1617 Silicon starvation,12h 49.7875 49.7875 49.7875