condition mean min max 12pM Fe,Midday 18.0462 18.0462 18.0462 12pM Fe,Midnight 41.184200000000004 41.0296 41.3388 58pM Fe,Midday 11.2208 11.2208 11.2208 58pM Fe,Midnight 26.084142857142858 0.0 35.4535 233pM Fe,Midnight 18.598866666666666 17.7692 19.6524 1160pM Fe,Midday 21.090857142857143 18.3158 22.6496 1160pM Fe,Midnight 10.859606666666666 8.9725 13.4968 High carbon,Dark 16.004828 5.23498 34.7863 High carbon,Light 18.461358307692308 0.861408 41.303 Low carbon,Dark 16.2473 16.2473 16.2473 Phloroglucinol 20.4681 14.3645 23.759 Silicon starvation,12h 42.5972 42.5972 42.5972