condition mean min max 12pM Fe,Midday 33.9357 33.9357 33.9357 12pM Fe,Midnight 27.742199999999997 26.3085 29.1759 58pM Fe,Midday 23.374 23.374 23.374 58pM Fe,Midnight 34.062357142857145 26.4565 68.5437 233pM Fe,Midnight 22.255833333333335 20.1402 24.1123 1160pM Fe,Midday 25.69225714285714 22.1598 27.7009 1160pM Fe,Midnight 11.985275 10.1049 15.0975 High carbon,Dark 18.177125333333333 3.20882 27.5992 High carbon,Light 13.550755384615385 4.54055 24.0123 Low carbon,Dark 16.6059 16.6059 16.6059 Phloroglucinol 18.018066666666666 12.4449 25.9448 Silicon starvation,12h 21.0637 21.0637 21.0637