condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.444472 0.441444 0.4475 58pM Fe,Midday 0.0761507 0.0761507 0.0761507 58pM Fe,Midnight 0.222386 0.0 0.363181 233pM Fe,Midnight 0.17989933333333333 0.107192 0.27246 1160pM Fe,Midday 0.040371614285714286 0.0 0.145328 1160pM Fe,Midnight 0.31722314166666665 0.0 0.599961 High carbon,Dark 3.3301814 0.153952 14.6115 High carbon,Light 1.4318343846153847 0.0 4.8253 Low carbon,Dark 0.97892 0.97892 0.97892 Phloroglucinol 5.36116 1.90433 11.3749 Silicon starvation,12h 5.14143 5.14143 5.14143