condition mean min max 12pM Fe,Midday 19.8571 19.8571 19.8571 12pM Fe,Midnight 33.216449999999995 32.8371 33.5958 58pM Fe,Midday 16.2593 16.2593 16.2593 58pM Fe,Midnight 22.111557142857144 0.0 31.3361 233pM Fe,Midnight 17.420366666666666 15.6163 19.3802 1160pM Fe,Midday 13.189765714285715 8.75836 15.3982 1160pM Fe,Midnight 14.861830833333332 8.91441 19.1905 High carbon,Dark 19.3265666 0.939469 41.0754 High carbon,Light 13.213307153846154 0.0 32.8444 Low carbon,Dark 21.6719 21.6719 21.6719 Phloroglucinol 5.194486666666666 4.3096 6.25953 Silicon starvation,12h 15.851 15.851 15.851