condition mean min max 12pM Fe,Midday 50.6311 50.6311 50.6311 12pM Fe,Midnight 52.55715 46.9666 58.1477 58pM Fe,Midday 54.4062 54.4062 54.4062 58pM Fe,Midnight 35.10375714285714 29.4577 37.6874 233pM Fe,Midnight 25.5007 24.3981 26.2492 1160pM Fe,Midday 38.72314285714286 34.5381 42.4106 1160pM Fe,Midnight 22.93123333333333 13.7708 33.4009 High carbon,Dark 24.13560066666667 8.14291 46.0263 High carbon,Light 18.29254923076923 3.37106 30.1095 Low carbon,Dark 18.1783 18.1783 18.1783 Phloroglucinol 110.7912 90.7386 130.358 Silicon starvation,12h 22.8669 22.8669 22.8669