condition mean min max 12pM Fe,Midday 23.8552 23.8552 23.8552 12pM Fe,Midnight 28.52645 23.6809 33.372 58pM Fe,Midday 25.9056 25.9056 25.9056 58pM Fe,Midnight 27.39897142857143 0.0 45.2604 233pM Fe,Midnight 38.5366 35.1149 40.3303 1160pM Fe,Midday 21.349614285714285 15.775 30.7183 1160pM Fe,Midnight 31.455483333333333 23.652 40.8791 High carbon,Dark 23.413519333333333 8.51999 35.6233 High carbon,Light 12.577723846153846 3.83016 24.8467 Low carbon,Dark 22.0249 22.0249 22.0249 Phloroglucinol 4.30785 3.08491 5.77549 Silicon starvation,12h 32.6983 32.6983 32.6983