condition mean min max 12pM Fe,Midday 1.61666 1.61666 1.61666 12pM Fe,Midnight 2.255485 1.74342 2.76755 58pM Fe,Midday 0.851711 0.851711 0.851711 58pM Fe,Midnight 1.0497854285714285 0.0 2.20875 233pM Fe,Midnight 1.28693 1.17603 1.48819 1160pM Fe,Midday 0.5288878571428571 0.218526 0.734461 1160pM Fe,Midnight 0.93619575 0.315471 1.4613 High carbon,Dark 3.7543213333333334 1.83464 12.4595 High carbon,Light 1.930785076923077 0.550424 6.13557 Low carbon,Dark 0.863693 0.863693 0.863693 Phloroglucinol 0.0 0.0 0.0 Silicon starvation,12h 5.73082 5.73082 5.73082