condition mean min max 12pM Fe,Midday 23.6838 23.6838 23.6838 12pM Fe,Midnight 21.4704 21.2386 21.7022 58pM Fe,Midday 35.4649 35.4649 35.4649 58pM Fe,Midnight 18.52652857142857 0.0 27.9571 233pM Fe,Midnight 8.93128 7.44562 10.1081 1160pM Fe,Midday 14.1986 11.5271 16.2956 1160pM Fe,Midnight 11.6518525 6.10244 17.9976 High carbon,Dark 15.033388 0.0 26.4875 High carbon,Light 11.510243846153847 2.53509 17.3247 Low carbon,Dark 18.3007 18.3007 18.3007 Phloroglucinol 8.15374 6.22695 10.3811 Silicon starvation,12h 19.2236 19.2236 19.2236