condition mean min max 12pM Fe,Midday 3.53956 3.53956 3.53956 12pM Fe,Midnight 4.576345 3.63119 5.5215 58pM Fe,Midday 6.26394 6.26394 6.26394 58pM Fe,Midnight 3.320547142857143 0.0 7.85866 233pM Fe,Midnight 22.127766666666666 20.8445 24.2476 1160pM Fe,Midday 1.0984514285714286 0.0 3.4979 1160pM Fe,Midnight 10.344450833333333 0.0 35.9264 High carbon,Dark 6.039013333333333 0.0 14.7721 High carbon,Light 2.960039230769231 0.0 10.5981 Low carbon,Dark 5.75166 5.75166 5.75166 Phloroglucinol 1.4819533333333335 0.0 3.32697 Silicon starvation,12h 6.0417 6.0417 6.0417