condition mean min max 12pM Fe,Midday 32.4437 32.4437 32.4437 12pM Fe,Midnight 29.710949999999997 28.3176 31.1043 58pM Fe,Midday 27.6824 27.6824 27.6824 58pM Fe,Midnight 19.66042857142857 0.0 25.6583 233pM Fe,Midnight 28.0171 25.617 29.2244 1160pM Fe,Midday 21.521757142857144 19.5966 23.9462 1160pM Fe,Midnight 13.813225 8.4673 17.6412 High carbon,Dark 22.316433333333332 10.7904 36.6244 High carbon,Light 19.249858461538462 5.45715 35.4545 Low carbon,Dark 20.7113 20.7113 20.7113 Phloroglucinol 30.2749 18.6801 39.4713 Silicon starvation,12h 48.3462 48.3462 48.3462