condition mean min max 12pM Fe,Midday 33.1693 33.1693 33.1693 12pM Fe,Midnight 20.09735 18.0407 22.154 58pM Fe,Midday 80.3324 80.3324 80.3324 58pM Fe,Midnight 21.664714285714286 0.0 49.436 233pM Fe,Midnight 10.72287 9.95791 11.664 1160pM Fe,Midday 18.042714285714286 14.3919 21.2494 1160pM Fe,Midnight 9.583696666666667 7.25195 11.1495 High carbon,Dark 12.682735333333333 3.32485 23.1526 High carbon,Light 12.909945384615385 2.1884 36.2176 Low carbon,Dark 13.0101 13.0101 13.0101 Phloroglucinol 27.552566666666664 20.8799 33.2377 Silicon starvation,12h 26.4375 26.4375 26.4375