condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.1606725 0.0 0.321345 58pM Fe,Midday 0.277165 0.277165 0.277165 58pM Fe,Midnight 0.037767714285714286 0.0 0.264374 233pM Fe,Midnight 0.129449 0.0 0.388347 1160pM Fe,Midday 0.16493542857142857 0.0 0.50117 1160pM Fe,Midnight 0.107383 0.0 0.794161 High carbon,Dark 0.037524466666666666 0.0 0.562867 High carbon,Light 0.20315538461538463 0.0 2.12881 Low carbon,Dark 1.01799 1.01799 1.01799 Phloroglucinol 0.20199033333333333 0.0 0.392563 Silicon starvation,12h 0.0 0.0 0.0