condition mean min max 12pM Fe,Midday 40.9844 40.9844 40.9844 12pM Fe,Midnight 52.8661 45.7219 60.0103 58pM Fe,Midday 33.6275 33.6275 33.6275 58pM Fe,Midnight 62.8714 43.0293 132.449 233pM Fe,Midnight 50.003766666666664 46.871 52.8908 1160pM Fe,Midday 34.2537 25.5689 41.7294 1160pM Fe,Midnight 45.45885 34.0356 55.116 High carbon,Dark 38.58453333333333 18.8664 62.5955 High carbon,Light 28.945165384615386 8.33515 48.3166 Low carbon,Dark 24.8229 24.8229 24.8229 Phloroglucinol 30.0489 24.748 34.7764 Silicon starvation,12h 45.7897 45.7897 45.7897