condition mean min max 12pM Fe,Midday 22.5452 22.5452 22.5452 12pM Fe,Midnight 20.9592 17.2882 24.6302 58pM Fe,Midday 12.2918 12.2918 12.2918 58pM Fe,Midnight 11.1409 0.0 15.4888 233pM Fe,Midnight 10.06607 8.89361 10.7785 1160pM Fe,Midday 9.628932857142857 7.8017 13.2966 1160pM Fe,Midnight 8.375895 6.65658 9.87829 High carbon,Dark 8.622125333333333 1.80468 12.9351 High carbon,Light 5.042945076923077 0.0 10.6769 Low carbon,Dark 4.07056 4.07056 4.07056 Phloroglucinol 11.055346666666667 8.56206 14.8294 Silicon starvation,12h 14.1232 14.1232 14.1232