condition mean min max 12pM Fe,Midday 28.6388 28.6388 28.6388 12pM Fe,Midnight 36.9726 36.5522 37.393 58pM Fe,Midday 14.9742 14.9742 14.9742 58pM Fe,Midnight 26.284528571428574 0.0 40.5022 233pM Fe,Midnight 26.3002 24.178 29.0505 1160pM Fe,Midday 15.075771428571429 10.5774 18.6851 1160pM Fe,Midnight 29.336508333333335 14.0349 48.0643 High carbon,Dark 32.67116266666667 1.4192 94.2201 High carbon,Light 23.43418923076923 3.57638 55.6383 Low carbon,Dark 20.4481 20.4481 20.4481 Phloroglucinol 82.47133333333333 67.4328 91.6457 Silicon starvation,12h 34.3174 34.3174 34.3174