condition mean min max 12pM Fe,Midday 26.9993 26.9993 26.9993 12pM Fe,Midnight 21.92575 19.7845 24.067 58pM Fe,Midday 17.3895 17.3895 17.3895 58pM Fe,Midnight 13.5734 0.0 17.1436 233pM Fe,Midnight 17.254233333333335 15.6999 18.3013 1160pM Fe,Midday 17.129514285714286 13.6648 21.1725 1160pM Fe,Midnight 4.179890833333333 1.26322 9.38534 High carbon,Dark 15.823171333333333 2.03772 29.8385 High carbon,Light 9.33058 2.98555 15.9482 Low carbon,Dark 10.1475 10.1475 10.1475 Phloroglucinol 14.045343333333333 7.82623 19.0435 Silicon starvation,12h 17.5563 17.5563 17.5563