condition mean min max 12pM Fe,Midday 33.9984 33.9984 33.9984 12pM Fe,Midnight 26.20595 24.6046 27.8073 58pM Fe,Midday 31.6494 31.6494 31.6494 58pM Fe,Midnight 26.562728571428572 24.5209 33.1123 233pM Fe,Midnight 30.029333333333334 28.7723 31.2957 1160pM Fe,Midday 20.606771428571427 19.0996 23.1966 1160pM Fe,Midnight 24.332883333333335 13.0923 38.831 High carbon,Dark 33.77938666666667 15.206 51.4878 High carbon,Light 25.498417692307694 5.17317 47.2691 Low carbon,Dark 20.2822 20.2822 20.2822 Phloroglucinol 16.681283333333333 8.24445 29.1919 Silicon starvation,12h 33.7593 33.7593 33.7593