condition mean min max 12pM Fe,Midday 1.97362 1.97362 1.97362 12pM Fe,Midnight 1.7527875 0.926205 2.57937 58pM Fe,Midday 1.89134 1.89134 1.89134 58pM Fe,Midnight 1.404467142857143 0.0 2.21186 233pM Fe,Midnight 1.1896823333333333 0.908417 1.33562 1160pM Fe,Midday 0.43716442857142856 0.0 0.712483 1160pM Fe,Midnight 1.7791299999999999 1.09227 2.34555 High carbon,Dark 0.9139156 0.0 2.86118 High carbon,Light 0.6566282307692308 0.0 1.8489 Low carbon,Dark 1.44722 1.44722 1.44722 Phloroglucinol 2.9672666666666667 2.54845 3.37839 Silicon starvation,12h 1.12037 1.12037 1.12037