condition mean min max 12pM Fe,Midday 75.6661 75.6661 75.6661 12pM Fe,Midnight 54.5203 49.5282 59.5124 58pM Fe,Midday 75.4861 75.4861 75.4861 58pM Fe,Midnight 47.96725714285714 43.4814 52.7417 233pM Fe,Midnight 46.86513333333333 45.2798 48.1007 1160pM Fe,Midday 55.98612857142857 51.569 59.7535 1160pM Fe,Midnight 25.372983333333334 22.1423 27.8356 High carbon,Dark 61.695613333333334 32.8828 86.3793 High carbon,Light 59.8356 18.1676 101.598 Low carbon,Dark 55.209 55.209 55.209 Phloroglucinol 46.7541 30.4847 63.4789 Silicon starvation,12h 89.1422 89.1422 89.1422