condition mean min max 12pM Fe,Midday 0.812358 0.812358 0.812358 12pM Fe,Midnight 0.42241 0.0 0.84482 58pM Fe,Midday 2.15644 2.15644 2.15644 58pM Fe,Midnight 0.2777907142857143 0.0 0.670391 233pM Fe,Midnight 0.17145600000000003 0.0 0.514368 1160pM Fe,Midday 0.19082557142857143 0.0 0.685901 1160pM Fe,Midnight 0.33448100000000003 0.0 1.39679 High carbon,Dark 1.0262353333333334 0.0 2.71226 High carbon,Light 0.18210153846153845 0.0 2.36732 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 3.6202533333333333 1.01809 8.3019 Silicon starvation,12h 0.462207 0.462207 0.462207