condition mean min max 12pM Fe,Midday 39.4493 39.4493 39.4493 12pM Fe,Midnight 32.71425 31.2404 34.1881 58pM Fe,Midday 35.2128 35.2128 35.2128 58pM Fe,Midnight 19.319785714285715 0.0 27.4542 233pM Fe,Midnight 20.628666666666668 19.3956 21.2536 1160pM Fe,Midday 22.145028571428572 19.8681 25.762 1160pM Fe,Midnight 12.329615 7.83847 16.5583 High carbon,Dark 27.86698 14.5014 54.3894 High carbon,Light 26.691415384615386 7.74144 42.4812 Low carbon,Dark 29.2403 29.2403 29.2403 Phloroglucinol 44.360533333333336 33.1768 62.7126 Silicon starvation,12h 67.1394 67.1394 67.1394