condition mean min max 12pM Fe,Midday 27.9188 27.9188 27.9188 12pM Fe,Midnight 28.043 27.3055 28.7805 58pM Fe,Midday 32.0502 32.0502 32.0502 58pM Fe,Midnight 32.71675714285714 21.5048 86.8055 233pM Fe,Midnight 16.557100000000002 15.0867 18.3501 1160pM Fe,Midday 17.647285714285715 15.9267 19.9879 1160pM Fe,Midnight 7.56229 4.78006 9.4419 High carbon,Dark 15.699372 6.92163 23.7824 High carbon,Light 13.181767692307693 1.5334 29.1755 Low carbon,Dark 13.6233 13.6233 13.6233 Phloroglucinol 17.295266666666667 10.303 28.6148 Silicon starvation,12h 19.2194 19.2194 19.2194