condition mean min max 12pM Fe,Midday 30.6711 30.6711 30.6711 12pM Fe,Midnight 30.9894 30.7873 31.1915 58pM Fe,Midday 25.2513 25.2513 25.2513 58pM Fe,Midnight 17.096757142857143 0.0 24.0504 233pM Fe,Midnight 19.461333333333332 16.4435 21.109 1160pM Fe,Midday 21.960957142857144 18.2402 24.9582 1160pM Fe,Midnight 9.006323333333333 6.52866 13.2363 High carbon,Dark 24.26785333333333 10.7109 46.2749 High carbon,Light 20.949255384615384 4.39636 34.4348 Low carbon,Dark 25.1364 25.1364 25.1364 Phloroglucinol 20.1858 19.2193 21.4414 Silicon starvation,12h 67.0722 67.0722 67.0722