condition mean min max 12pM Fe,Midday 26.6471 26.6471 26.6471 12pM Fe,Midnight 23.53825 22.3729 24.7036 58pM Fe,Midday 16.9809 16.9809 16.9809 58pM Fe,Midnight 17.9728 0.0 23.979 233pM Fe,Midnight 18.232266666666668 17.1046 19.2463 1160pM Fe,Midday 17.145314285714285 14.9837 19.8088 1160pM Fe,Midnight 12.912991666666667 10.0157 15.3123 High carbon,Dark 15.144368666666667 5.61828 24.1516 High carbon,Light 13.09913 3.42939 25.0865 Low carbon,Dark 11.5203 11.5203 11.5203 Phloroglucinol 7.38908 6.5106 8.57797 Silicon starvation,12h 25.4544 25.4544 25.4544