condition mean min max 12pM Fe,Midday 53.1106 53.1106 53.1106 12pM Fe,Midnight 34.88755 33.0365 36.7386 58pM Fe,Midday 31.8969 31.8969 31.8969 58pM Fe,Midnight 21.6937 0.0 28.7897 233pM Fe,Midnight 17.669533333333334 15.8252 19.3066 1160pM Fe,Midday 26.889514285714284 22.8504 31.3372 1160pM Fe,Midnight 19.76235833333333 16.7535 23.7071 High carbon,Dark 22.214044 9.52226 40.3676 High carbon,Light 24.21892692307692 6.86471 37.3123 Low carbon,Dark 15.6204 15.6204 15.6204 Phloroglucinol 41.396966666666664 36.9201 49.7738 Silicon starvation,12h 31.5856 31.5856 31.5856