condition mean min max 12pM Fe,Midday 22.5105 22.5105 22.5105 12pM Fe,Midnight 12.80885 11.224 14.3937 58pM Fe,Midday 21.0097 21.0097 21.0097 58pM Fe,Midnight 8.31615 0.0 10.6707 233pM Fe,Midnight 12.6981 11.9064 13.6674 1160pM Fe,Midday 16.670871428571427 15.0425 18.2548 1160pM Fe,Midnight 7.339540833333333 5.26753 10.3956 High carbon,Dark 10.450462 4.15424 18.5745 High carbon,Light 9.621951538461538 3.55048 15.9503 Low carbon,Dark 8.01724 8.01724 8.01724 Phloroglucinol 7.862776666666667 3.02177 16.702 Silicon starvation,12h 24.9137 24.9137 24.9137