condition mean min max 12pM Fe,Midday 34.5281 34.5281 34.5281 12pM Fe,Midnight 31.528150000000004 29.5924 33.4639 58pM Fe,Midday 22.4151 22.4151 22.4151 58pM Fe,Midnight 18.24922857142857 0.0 24.2725 233pM Fe,Midnight 19.640533333333334 18.9097 20.5441 1160pM Fe,Midday 19.84432857142857 18.3952 21.0983 1160pM Fe,Midnight 12.035793333333332 9.46162 14.3517 High carbon,Dark 20.52334533333333 8.79996 33.6943 High carbon,Light 14.752795384615384 8.22611 21.7806 Low carbon,Dark 13.8152 13.8152 13.8152 Phloroglucinol 51.8981 44.0974 62.8883 Silicon starvation,12h 29.8136 29.8136 29.8136