condition mean min max 12pM Fe,Midday 7.6859 7.6859 7.6859 12pM Fe,Midnight 34.45755 32.6032 36.3119 58pM Fe,Midday 4.47424 4.47424 4.47424 58pM Fe,Midnight 30.018271428571428 0.0 37.7216 233pM Fe,Midnight 42.0206 39.9299 44.5101 1160pM Fe,Midday 0.6799465714285714 0.155388 1.33253 1160pM Fe,Midnight 25.500091666666666 19.3505 36.3985 High carbon,Dark 25.7991 12.2381 38.6619 High carbon,Light 8.739942307692308 2.85776 18.9417 Low carbon,Dark 16.762 16.762 16.762 Phloroglucinol 20.147129999999997 9.37889 32.5209 Silicon starvation,12h 38.3216 38.3216 38.3216