condition mean min max 12pM Fe,Midday 42.1808 42.1808 42.1808 12pM Fe,Midnight 29.591 27.4413 31.7407 58pM Fe,Midday 25.641 25.641 25.641 58pM Fe,Midnight 13.087081428571429 0.0 19.4624 233pM Fe,Midnight 10.75164 9.77122 12.1734 1160pM Fe,Midday 22.955442857142856 18.7138 27.9116 1160pM Fe,Midnight 4.123049166666667 2.97874 5.94128 High carbon,Dark 8.909836 3.75544 20.3274 High carbon,Light 9.048252307692307 2.62456 17.9691 Low carbon,Dark 8.91606 8.91606 8.91606 Phloroglucinol 15.09436 8.70308 21.7286 Silicon starvation,12h 23.8044 23.8044 23.8044