condition mean min max 12pM Fe,Midday 30.9712 30.9712 30.9712 12pM Fe,Midnight 25.9385 25.7618 26.1152 58pM Fe,Midday 23.7014 23.7014 23.7014 58pM Fe,Midnight 14.725185714285715 0.0 21.3494 233pM Fe,Midnight 20.068666666666665 19.2879 21.2003 1160pM Fe,Midday 24.854557142857143 19.2923 33.9762 1160pM Fe,Midnight 5.536125833333333 2.51772 8.42896 High carbon,Dark 26.758255333333334 5.47543 47.7606 High carbon,Light 24.575342307692306 5.91345 57.3236 Low carbon,Dark 21.763 21.763 21.763 Phloroglucinol 18.902633333333334 18.2492 19.4073 Silicon starvation,12h 62.3901 62.3901 62.3901