condition mean min max 12pM Fe,Midday 7.59912 7.59912 7.59912 12pM Fe,Midnight 6.89443 6.26532 7.52354 58pM Fe,Midday 5.25645 5.25645 5.25645 58pM Fe,Midnight 5.035052565068572 7.95548e-06 7.17736 233pM Fe,Midnight 4.388236666666667 4.03447 4.61804 1160pM Fe,Midday 4.478588571428571 3.61799 4.91232 1160pM Fe,Midnight 4.0048125 2.01494 5.75108 High carbon,Dark 5.596138 1.64116 10.4766 High carbon,Light 3.78053 3.03799 5.1032 Low carbon,Dark 6.53121 6.53121 6.53121 Phloroglucinol 3.8088433333333334 3.20912 4.30912 Silicon starvation,12h 13.3955 13.3955 13.3955