condition mean min max 12pM Fe,Midday 5.29827 5.29827 5.29827 12pM Fe,Midnight 5.784625 4.90594 6.66331 58pM Fe,Midday 4.27012 4.27012 4.27012 58pM Fe,Midnight 4.508261428571428 0.0 6.2514 233pM Fe,Midnight 3.173836666666667 2.80892 3.48088 1160pM Fe,Midday 4.737202857142857 3.8711 5.53706 1160pM Fe,Midnight 2.9677066666666665 2.46206 3.69898 High carbon,Dark 2.9726858000000003 0.266507 8.02514 High carbon,Light 2.1270128 0.0 5.24291 Low carbon,Dark 4.47856 4.47856 4.47856 Phloroglucinol 2.4791633333333336 2.0131 2.76657 Silicon starvation,12h 2.91188 2.91188 2.91188