condition mean min max 12pM Fe,Midday 4.63685 4.63685 4.63685 12pM Fe,Midnight 6.047470000000001 4.75689 7.33805 58pM Fe,Midday 3.74613 3.74613 3.74613 58pM Fe,Midnight 4.5489057142857146 0.0 6.69777 233pM Fe,Midnight 4.038326666666666 3.37426 4.72306 1160pM Fe,Midday 4.967375714285714 3.71895 6.61247 1160pM Fe,Midnight 22.149730833333333 2.98601 36.2292 High carbon,Dark 10.563395333333334 5.28022 21.4295 High carbon,Light 10.048835384615385 2.37372 21.5622 Low carbon,Dark 5.56914 5.56914 5.56914 Phloroglucinol 15.23367 9.09571 23.3498 Silicon starvation,12h 15.9441 15.9441 15.9441