condition mean min max 12pM Fe,Midday 11.2622 11.2622 11.2622 12pM Fe,Midnight 10.314695 9.71569 10.9137 58pM Fe,Midday 4.75619 4.75619 4.75619 58pM Fe,Midnight 6.443801428571429 0.0 9.71848 233pM Fe,Midnight 5.815166666666666 4.91873 6.85437 1160pM Fe,Midday 4.919302857142857 3.02562 7.58843 1160pM Fe,Midnight 3.240165833333333 2.20052 4.16357 High carbon,Dark 5.339030133333333 0.540282 9.22967 High carbon,Light 5.729887538461538 0.602748 14.2804 Low carbon,Dark 5.40703 5.40703 5.40703 Phloroglucinol 3.23496 2.24548 4.70841 Silicon starvation,12h 22.7188 22.7188 22.7188