condition mean min max 12pM Fe,Midday 36.4561 36.4561 36.4561 12pM Fe,Midnight 28.0287 27.923 28.1344 58pM Fe,Midday 26.1275 26.1275 26.1275 58pM Fe,Midnight 15.538114285714286 0.0 20.7758 233pM Fe,Midnight 13.4522 12.636 15.0406 1160pM Fe,Midday 22.15427142857143 19.135 24.8231 1160pM Fe,Midnight 8.148633333333333 5.58189 10.552 High carbon,Dark 10.079083333333333 2.65583 18.8317 High carbon,Light 10.67528376923077 0.971139 19.2286 Low carbon,Dark 14.7429 14.7429 14.7429 Phloroglucinol 17.6377 13.7664 22.8146 Silicon starvation,12h 32.0052 32.0052 32.0052