condition mean min max 12pM Fe,Midday 24.1197 24.1197 24.1197 12pM Fe,Midnight 35.97495 32.4831 39.4668 58pM Fe,Midday 43.218 43.218 43.218 58pM Fe,Midnight 27.685342857142857 0.0 33.5314 233pM Fe,Midnight 35.29193333333333 33.8658 36.2381 1160pM Fe,Midday 39.326728571428575 33.2847 48.804 1160pM Fe,Midnight 34.404833333333336 21.792 44.8531 High carbon,Dark 37.372414666666664 2.67597 89.4282 High carbon,Light 22.74234076923077 6.17681 69.9268 Low carbon,Dark 47.5222 47.5222 47.5222 Phloroglucinol 24.776566666666668 21.4037 28.668 Silicon starvation,12h 55.1335 55.1335 55.1335