condition mean min max 12pM Fe,Midday 14.7645 14.7645 14.7645 12pM Fe,Midnight 20.2973 19.4507 21.1439 58pM Fe,Midday 10.4229 10.4229 10.4229 58pM Fe,Midnight 16.173185714285715 0.0 21.326 233pM Fe,Midnight 10.040856666666667 9.75262 10.4214 1160pM Fe,Midday 8.675337142857142 7.40454 9.8341 1160pM Fe,Midnight 8.5410525 7.0677 11.0058 High carbon,Dark 14.312206666666667 6.6494 22.1817 High carbon,Light 12.041969230769231 4.46477 20.5772 Low carbon,Dark 9.04607 9.04607 9.04607 Phloroglucinol 15.368533333333334 11.7828 21.987 Silicon starvation,12h 19.0963 19.0963 19.0963