condition mean min max 12pM Fe,Midday 37.3469 37.3469 37.3469 12pM Fe,Midnight 31.45225 28.3806 34.5239 58pM Fe,Midday 25.7027 25.7027 25.7027 58pM Fe,Midnight 18.142742857142856 0.0 23.5432 233pM Fe,Midnight 20.756466666666668 20.5789 20.8896 1160pM Fe,Midday 17.119242857142858 15.9126 18.5349 1160pM Fe,Midnight 9.1375425 4.26414 17.2743 High carbon,Dark 24.06454666666667 12.2517 40.5981 High carbon,Light 16.80549 1.17106 30.8181 Low carbon,Dark 15.4528 15.4528 15.4528 Phloroglucinol 10.632073333333333 8.34258 14.3714 Silicon starvation,12h 35.5138 35.5138 35.5138