condition mean min max 12pM Fe,Midday 40.4521 40.4521 40.4521 12pM Fe,Midnight 32.511300000000006 31.3453 33.6773 58pM Fe,Midday 29.7965 29.7965 29.7965 58pM Fe,Midnight 18.3333 0.0 22.5192 233pM Fe,Midnight 10.6548 10.1372 11.3081 1160pM Fe,Midday 20.350842857142858 18.1898 22.5496 1160pM Fe,Midnight 12.057114166666667 9.38432 14.0003 High carbon,Dark 12.014197333333334 1.0231 19.6262 High carbon,Light 7.841684615384615 1.05644 14.3628 Low carbon,Dark 6.11878 6.11878 6.11878 Phloroglucinol 31.0942 26.6072 38.2259 Silicon starvation,12h 13.9565 13.9565 13.9565