condition mean min max 12pM Fe,Midday 18.0075 18.0075 18.0075 12pM Fe,Midnight 6.703885 4.85516 8.55261 58pM Fe,Midday 6.78663 6.78663 6.78663 58pM Fe,Midnight 8.246239857142857 0.0 17.7838 233pM Fe,Midnight 7.7774833333333335 6.75671 8.30703 1160pM Fe,Midday 41.3828 31.4168 47.6993 1160pM Fe,Midnight 10.93338 7.1618 15.5361 High carbon,Dark 10.082499333333333 0.0 37.3775 High carbon,Light 54.388243076923075 3.14111 125.846 Low carbon,Dark 3.25127 3.25127 3.25127 Phloroglucinol 5.186893333333333 2.72633 9.90888 Silicon starvation,12h 9.67648 9.67648 9.67648