condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.0 0.0 0.0 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.5135065714285714 0.0 2.51468 233pM Fe,Midnight 0.13429333333333335 0.0 0.40288 1160pM Fe,Midday 0.0 0.0 0.0 1160pM Fe,Midnight 0.0881295 0.0 0.54672 High carbon,Dark 3.620832 0.0 17.5267 High carbon,Light 1.0519846153846153 0.0 3.29742 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 1.3222366666666667 0.0 3.96671 Silicon starvation,12h 0.368076 0.368076 0.368076