condition mean min max 12pM Fe,Midday 7.21227 7.21227 7.21227 12pM Fe,Midnight 9.806165 9.48933 10.123 58pM Fe,Midday 3.72195 3.72195 3.72195 58pM Fe,Midnight 6.2378157142857145 5.27802 7.17165 233pM Fe,Midnight 18.2507 18.0103 18.4519 1160pM Fe,Midday 9.449514285714287 8.96354 10.0946 1160pM Fe,Midnight 16.568925 13.9712 18.0763 High carbon,Dark 14.9278788 0.783382 29.2757 High carbon,Light 7.197072692307692 0.948055 14.3909 Low carbon,Dark 11.6869 11.6869 11.6869 Phloroglucinol 18.457666666666668 14.7908 21.2974 Silicon starvation,12h 2.53675 2.53675 2.53675