condition mean min max 12pM Fe,Midday 33.4837 33.4837 33.4837 12pM Fe,Midnight 27.83805 27.1361 28.54 58pM Fe,Midday 28.6907 28.6907 28.6907 58pM Fe,Midnight 15.984185714285715 0.0 20.3576 233pM Fe,Midnight 15.797533333333334 15.0586 16.2088 1160pM Fe,Midday 23.22287142857143 21.5665 25.03 1160pM Fe,Midnight 5.288429166666667 4.70105 6.32677 High carbon,Dark 12.559396666666666 4.30053 27.4775 High carbon,Light 8.018234923076923 0.309786 17.524 Low carbon,Dark 12.1337 12.1337 12.1337 Phloroglucinol 20.0775 18.6714 21.5568 Silicon starvation,12h 16.455 16.455 16.455