condition mean min max 12pM Fe,Midday 24.4993 24.4993 24.4993 12pM Fe,Midnight 26.6567 26.3064 27.007 58pM Fe,Midday 21.3891 21.3891 21.3891 58pM Fe,Midnight 18.567328571428572 0.0 25.3223 233pM Fe,Midnight 15.795066666666667 14.9845 16.6814 1160pM Fe,Midday 22.563628571428573 20.0211 25.9326 1160pM Fe,Midnight 8.224615 5.1508 11.4218 High carbon,Dark 14.176748666666667 4.38261 24.0254 High carbon,Light 13.837046923076922 1.34615 26.8918 Low carbon,Dark 11.4123 11.4123 11.4123 Phloroglucinol 13.684066666666666 10.0299 19.2507 Silicon starvation,12h 26.4847 26.4847 26.4847