condition mean min max 12pM Fe,Midday 8.8489 8.8489 8.8489 12pM Fe,Midnight 15.855550000000001 15.3191 16.392 58pM Fe,Midday 4.8937 4.8937 4.8937 58pM Fe,Midnight 13.976914285714285 0.0 21.6113 233pM Fe,Midnight 15.731399999999999 15.1548 16.4562 1160pM Fe,Midday 4.745247142857143 3.26186 6.63048 1160pM Fe,Midnight 5.633219666666667 0.927966 15.8381 High carbon,Dark 10.5629812 0.876558 21.3209 High carbon,Light 5.563637692307693 1.18485 16.5299 Low carbon,Dark 8.53761 8.53761 8.53761 Phloroglucinol 2.76394 2.09792 3.76798 Silicon starvation,12h 11.3282 11.3282 11.3282