condition mean min max 12pM Fe,Midday 17.5931 17.5931 17.5931 12pM Fe,Midnight 21.5822 21.0566 22.1078 58pM Fe,Midday 27.2426 27.2426 27.2426 58pM Fe,Midnight 19.1984 0.0 28.8946 233pM Fe,Midnight 30.093766666666667 29.7055 30.4456 1160pM Fe,Midday 23.231285714285715 18.3519 35.8982 1160pM Fe,Midnight 16.860860833333334 5.51216 28.3907 High carbon,Dark 25.866136666666666 4.64732 61.6231 High carbon,Light 21.276544615384616 4.07204 47.4307 Low carbon,Dark 21.4411 21.4411 21.4411 Phloroglucinol 112.39333333333333 107.376 118.642 Silicon starvation,12h 94.6771 94.6771 94.6771