condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.3447335 0.0 0.689467 58pM Fe,Midday 0.198226 0.198226 0.198226 58pM Fe,Midnight 0.1526785714285714 0.0 0.696653 233pM Fe,Midnight 0.0 0.0 0.0 1160pM Fe,Midday 0.19879185714285713 0.0 0.537647 1160pM Fe,Midnight 0.131796 0.0 0.520581 High carbon,Dark 2.3843015333333333 0.0 10.3281 High carbon,Light 1.884283076923077 0.0 11.3545 Low carbon,Dark 4.73237 4.73237 4.73237 Phloroglucinol 0.5404713333333333 0.280757 0.915762 Silicon starvation,12h 0.254924 0.254924 0.254924