condition mean min max 12pM Fe,Midday 14.7131 14.7131 14.7131 12pM Fe,Midnight 20.95605 18.6673 23.2448 58pM Fe,Midday 13.8 13.8 13.8 58pM Fe,Midnight 21.436242857142858 0.0 27.568 233pM Fe,Midnight 40.8481 38.6714 42.8823 1160pM Fe,Midday 18.82527142857143 13.6163 24.8149 1160pM Fe,Midnight 22.94785 17.0089 34.2638 High carbon,Dark 27.809708 6.52942 37.4413 High carbon,Light 21.353053846153845 13.9512 30.442 Low carbon,Dark 24.8646 24.8646 24.8646 Phloroglucinol 18.4491 11.7204 22.053 Silicon starvation,12h 74.6722 74.6722 74.6722