condition mean min max 12pM Fe,Midday 6.05044 6.05044 6.05044 12pM Fe,Midnight 8.1796 7.96958 8.38962 58pM Fe,Midday 5.35371 5.35371 5.35371 58pM Fe,Midnight 9.000582857142858 4.86978 26.5537 233pM Fe,Midnight 5.5695966666666665 4.96613 6.00093 1160pM Fe,Midday 5.3925157142857145 4.33064 7.04067 1160pM Fe,Midnight 2.308844166666667 1.60545 2.77224 High carbon,Dark 4.378838466666666 0.534493 8.19938 High carbon,Light 3.3168384615384614 0.30355 7.0745 Low carbon,Dark 3.03449 3.03449 3.03449 Phloroglucinol 5.390836666666667 4.58708 6.7685 Silicon starvation,12h 3.40001 3.40001 3.40001