condition mean min max 12pM Fe,Midday 22.8917 22.8917 22.8917 12pM Fe,Midnight 29.20905 29.0101 29.408 58pM Fe,Midday 19.0642 19.0642 19.0642 58pM Fe,Midnight 22.650742857142856 0.0 39.7812 233pM Fe,Midnight 25.253633333333333 24.726 25.8768 1160pM Fe,Midday 25.312114285714287 19.3904 31.1742 1160pM Fe,Midnight 6.70563 0.0 15.1884 High carbon,Dark 18.57604866666667 0.0 56.1685 High carbon,Light 6.848485384615385 0.0 17.6059 Low carbon,Dark 10.9406 10.9406 10.9406 Phloroglucinol 27.020866666666667 25.3139 29.3575 Silicon starvation,12h 23.7509 23.7509 23.7509