condition mean min max 12pM Fe,Midday 68.916 68.916 68.916 12pM Fe,Midnight 74.90895 62.2845 87.5334 58pM Fe,Midday 88.5663 88.5663 88.5663 58pM Fe,Midnight 47.565828571428575 0.0 64.8469 233pM Fe,Midnight 39.532000000000004 35.6006 44.6751 1160pM Fe,Midday 54.53675714285714 45.287 65.9363 1160pM Fe,Midnight 30.707508333333333 24.9819 40.7081 High carbon,Dark 24.929877333333334 0.0 72.7409 High carbon,Light 22.006626923076922 4.02255 63.755 Low carbon,Dark 33.3291 33.3291 33.3291 Phloroglucinol 23.6053 14.5233 35.2144 Silicon starvation,12h 51.8146 51.8146 51.8146