condition mean min max 12pM Fe,Midday 26.1806 26.1806 26.1806 12pM Fe,Midnight 18.1769 16.1797 20.1741 58pM Fe,Midday 15.3508 15.3508 15.3508 58pM Fe,Midnight 26.629 10.7821 112.131 233pM Fe,Midnight 8.58766 7.52803 9.88628 1160pM Fe,Midday 12.24782857142857 10.3706 15.1404 1160pM Fe,Midnight 8.468609166666667 6.90799 10.8622 High carbon,Dark 19.247693333333334 10.0332 33.8984 High carbon,Light 17.325685384615383 1.32744 31.2529 Low carbon,Dark 6.91956 6.91956 6.91956 Phloroglucinol 10.36732 6.22616 14.5059 Silicon starvation,12h 20.3697 20.3697 20.3697