condition mean min max 12pM Fe,Midday 18.3578 18.3578 18.3578 12pM Fe,Midnight 19.865099999999998 19.7821 19.9481 58pM Fe,Midday 13.5187 13.5187 13.5187 58pM Fe,Midnight 12.438285714285714 0.0 16.3846 233pM Fe,Midnight 15.0762 14.1028 15.9843 1160pM Fe,Midday 11.879442857142857 11.3701 12.2066 1160pM Fe,Midnight 9.14496 5.34066 15.5421 High carbon,Dark 19.08256 11.8256 34.4595 High carbon,Light 16.286056153846154 4.15083 29.6078 Low carbon,Dark 13.4434 13.4434 13.4434 Phloroglucinol 40.0794 35.9256 43.7055 Silicon starvation,12h 20.7182 20.7182 20.7182