condition mean min max 12pM Fe,Midday 31.3346 31.3346 31.3346 12pM Fe,Midnight 20.1815 19.4848 20.8782 58pM Fe,Midday 21.152 21.152 21.152 58pM Fe,Midnight 30.350485714285714 13.3597 114.835 233pM Fe,Midnight 28.351866666666666 26.8334 29.4538 1160pM Fe,Midday 20.83835714285714 18.1622 24.1262 1160pM Fe,Midnight 19.321473333333333 9.21158 28.1774 High carbon,Dark 33.778582666666665 4.09594 65.7909 High carbon,Light 32.87802307692308 10.9395 54.3904 Low carbon,Dark 14.1729 14.1729 14.1729 Phloroglucinol 17.122 12.6623 20.688 Silicon starvation,12h 66.9024 66.9024 66.9024