condition mean min max 12pM Fe,Midday 14.4052 14.4052 14.4052 12pM Fe,Midnight 35.40905 35.0551 35.763 58pM Fe,Midday 21.4139 21.4139 21.4139 58pM Fe,Midnight 40.44331428571429 24.307 102.417 233pM Fe,Midnight 72.315 63.8743 77.3466 1160pM Fe,Midday 6.890271428571428 5.14542 11.5783 1160pM Fe,Midnight 28.5945 10.01 59.8455 High carbon,Dark 55.74200666666667 43.1774 74.7303 High carbon,Light 47.84756153846154 14.1452 66.5911 Low carbon,Dark 33.2392 33.2392 33.2392 Phloroglucinol 23.772166666666667 13.1144 30.3296 Silicon starvation,12h 96.714 96.714 96.714