condition mean min max 12pM Fe,Midday 17.9729 17.9729 17.9729 12pM Fe,Midnight 17.342750000000002 15.05 19.6355 58pM Fe,Midday 13.3216 13.3216 13.3216 58pM Fe,Midnight 14.274451428571428 0.0 23.2639 233pM Fe,Midnight 10.583763333333334 9.98379 11.0106 1160pM Fe,Midday 23.012914285714285 18.2996 27.2859 1160pM Fe,Midnight 6.772811666666667 4.60066 8.8636 High carbon,Dark 11.691835333333334 1.14512 37.1796 High carbon,Light 21.38509923076923 1.23673 56.5084 Low carbon,Dark 7.39615 7.39615 7.39615 Phloroglucinol 27.941666666666666 24.8648 32.2439 Silicon starvation,12h 15.8703 15.8703 15.8703