condition mean min max 12pM Fe,Midday 0.0 0.0 0.0 12pM Fe,Midnight 0.519495 0.0 1.03899 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 0.9116688571428572 0.0 3.10685 233pM Fe,Midnight 0.4138366666666667 0.0 0.62219 1160pM Fe,Midday 0.18805999999999998 0.0 1.31642 1160pM Fe,Midnight 1.5391790833333334 0.0 4.29457 High carbon,Dark 2.656530666666667 0.0 10.0069 High carbon,Light 0.33414615384615387 0.0 1.6337 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.226889 0.0 0.680667 Silicon starvation,12h 0.56844 0.56844 0.56844