condition mean min max 12pM Fe,Midday 45.2682 45.2682 45.2682 12pM Fe,Midnight 40.099050000000005 39.8738 40.3243 58pM Fe,Midday 38.2496 38.2496 38.2496 58pM Fe,Midnight 28.0013 0.0 33.7441 233pM Fe,Midnight 25.137866666666667 24.6099 26.0198 1160pM Fe,Midday 35.26398571428572 32.1551 41.1865 1160pM Fe,Midnight 17.672541666666667 14.8708 20.7811 High carbon,Dark 21.67922666666667 10.1224 32.246 High carbon,Light 17.99061153846154 1.75917 35.673 Low carbon,Dark 18.5405 18.5405 18.5405 Phloroglucinol 24.4228 17.1834 35.3916 Silicon starvation,12h 26.1257 26.1257 26.1257