condition mean min max 12pM Fe,Midday 46.0659 46.0659 46.0659 12pM Fe,Midnight 68.06795 65.4209 70.715 58pM Fe,Midday 33.591 33.591 33.591 58pM Fe,Midnight 56.524414285714286 47.1119 93.9338 233pM Fe,Midnight 38.8093 37.456 39.9883 1160pM Fe,Midday 34.07052857142857 28.3153 39.2856 1160pM Fe,Midnight 20.658833333333334 17.1435 25.2473 High carbon,Dark 37.467988 1.81482 95.911 High carbon,Light 15.261071538461538 6.94843 27.2607 Low carbon,Dark 25.906 25.906 25.906 Phloroglucinol 29.4759 20.2559 38.0457 Silicon starvation,12h 23.7544 23.7544 23.7544