condition mean min max 12pM Fe,Midday 1.19311 1.19311 1.19311 12pM Fe,Midnight 0.0 0.0 0.0 58pM Fe,Midday 0.351907 0.351907 0.351907 58pM Fe,Midnight 0.0 0.0 0.0 233pM Fe,Midnight 0.16473766666666667 0.0 0.247678 1160pM Fe,Midday 0.29902557142857145 0.0 1.25099 1160pM Fe,Midnight 0.07896108333333333 0.0 0.639474 High carbon,Dark 0.7521511333333333 0.0 3.78201 High carbon,Light 0.5416904615384616 0.0 3.24989 Low carbon,Dark 3.87752 3.87752 3.87752 Phloroglucinol 0.167624 0.0 0.502872 Silicon starvation,12h 0.226281 0.226281 0.226281