condition mean min max 12pM Fe,Midday 22.0359 22.0359 22.0359 12pM Fe,Midnight 9.713339999999999 9.50194 9.92474 58pM Fe,Midday 13.7915 13.7915 13.7915 58pM Fe,Midnight 6.396748571428572 0.0 8.61881 233pM Fe,Midnight 4.691136666666667 2.72247 6.33023 1160pM Fe,Midday 10.687788571428571 6.72771 13.5256 1160pM Fe,Midnight 7.393220833333333 3.63731 11.8833 High carbon,Dark 11.892088 2.55552 23.298 High carbon,Light 12.270135384615385 2.53128 20.3474 Low carbon,Dark 6.98683 6.98683 6.98683 Phloroglucinol 28.393333333333334 17.5129 33.9793 Silicon starvation,12h 28.1334 28.1334 28.1334