condition mean min max 12pM Fe,Midday 5.60564 5.60564 5.60564 12pM Fe,Midnight 1.16593 0.0 2.33186 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 2.5389537142857144 0.0 4.97833 233pM Fe,Midnight 1.4020433333333333 1.38997 1.41975 1160pM Fe,Midday 1.1454365714285715 0.0 2.64491 1160pM Fe,Midnight 1.6485159166666667 0.0 4.91061 High carbon,Dark 7.581061333333333 0.0 22.5913 High carbon,Light 26.475933076923077 0.0 182.562 Low carbon,Dark 23.6833 23.6833 23.6833 Phloroglucinol 2.1405616666666667 0.763825 4.2528 Silicon starvation,12h 29.3428 29.3428 29.3428