condition mean min max 12pM Fe,Midday 19.7839 19.7839 19.7839 12pM Fe,Midnight 24.32765 24.1619 24.4934 58pM Fe,Midday 13.3377 13.3377 13.3377 58pM Fe,Midnight 22.253857142857143 0.0 36.6206 233pM Fe,Midnight 14.357933333333333 11.7341 18.4918 1160pM Fe,Midday 12.832778571428571 8.29026 20.2655 1160pM Fe,Midnight 6.348325 2.47585 12.0429 High carbon,Dark 10.119745333333332 0.0 20.6824 High carbon,Light 5.932946923076923 0.0 29.0742 Low carbon,Dark 3.06172 3.06172 3.06172 Phloroglucinol 3.41432 1.92554 5.95607 Silicon starvation,12h 24.6569 24.6569 24.6569