condition mean min max 12pM Fe,Midday 27.2168 27.2168 27.2168 12pM Fe,Midnight 24.9132 24.3692 25.4572 58pM Fe,Midday 23.0852 23.0852 23.0852 58pM Fe,Midnight 21.919014285714287 0.0 29.5617 233pM Fe,Midnight 19.03193333333333 17.4512 20.0662 1160pM Fe,Midday 17.70952857142857 15.3419 20.6004 1160pM Fe,Midnight 9.774901666666667 5.82635 15.8623 High carbon,Dark 18.020452666666667 3.70109 27.5838 High carbon,Light 12.587251538461539 6.66446 17.1934 Low carbon,Dark 14.2623 14.2623 14.2623 Phloroglucinol 10.585066666666666 8.45077 14.3734 Silicon starvation,12h 25.2441 25.2441 25.2441