condition mean min max 12pM Fe,Midday 0.39416 0.39416 0.39416 12pM Fe,Midnight 0.32682 0.161746 0.491894 58pM Fe,Midday 0.0697543 0.0697543 0.0697543 58pM Fe,Midnight 0.1937552857142857 0.0 0.332675 233pM Fe,Midnight 0.8053143333333334 0.781884 0.848552 1160pM Fe,Midday 0.08646002857142857 0.0 0.127992 1160pM Fe,Midnight 0.22140416666666668 0.0 0.67773 High carbon,Dark 3.9357827333333333 0.126627 9.3974 High carbon,Light 4.837467153846154 0.106785 17.2737 Low carbon,Dark 0.512397 0.512397 0.512397 Phloroglucinol 370.128 315.704 438.529 Silicon starvation,12h 0.089706 0.089706 0.089706