condition mean min max 12pM Fe,Midday 13.5294 13.5294 13.5294 12pM Fe,Midnight 15.0177 14.9154 15.12 58pM Fe,Midday 11.9714 11.9714 11.9714 58pM Fe,Midnight 11.543642857142856 0.0 15.4977 233pM Fe,Midnight 14.8166 14.3953 15.2152 1160pM Fe,Midday 10.623548571428572 9.03634 11.6389 1160pM Fe,Midnight 9.624470833333334 8.29157 13.2103 High carbon,Dark 11.26155 1.28019 25.6245 High carbon,Light 6.3176130769230765 0.0 10.3549 Low carbon,Dark 11.4846 11.4846 11.4846 Phloroglucinol 9.96441 8.80484 11.6412 Silicon starvation,12h 9.42118 9.42118 9.42118