condition mean min max 12pM Fe,Midday 28.1018 28.1018 28.1018 12pM Fe,Midnight 25.99705 25.7668 26.2273 58pM Fe,Midday 20.6304 20.6304 20.6304 58pM Fe,Midnight 25.931957142857144 19.8955 36.5927 233pM Fe,Midnight 19.030900000000003 17.6305 19.7767 1160pM Fe,Midday 17.420942857142858 15.856 18.699 1160pM Fe,Midnight 17.8836 16.1064 20.512 High carbon,Dark 15.858265333333334 4.16028 24.3559 High carbon,Light 11.735722307692308 3.97396 17.414 Low carbon,Dark 10.8725 10.8725 10.8725 Phloroglucinol 12.709966666666666 10.8031 15.3938 Silicon starvation,12h 21.0259 21.0259 21.0259