condition mean min max 12pM Fe,Midday 31.3094 31.3094 31.3094 12pM Fe,Midnight 35.955349999999996 32.5165 39.3942 58pM Fe,Midday 19.4954 19.4954 19.4954 58pM Fe,Midnight 29.38807142857143 0.0 42.5 233pM Fe,Midnight 19.247433333333333 18.356 19.8878 1160pM Fe,Midday 17.81715714285714 15.3391 20.0996 1160pM Fe,Midnight 19.3404 13.883 25.793 High carbon,Dark 21.3173556 0.612634 41.8891 High carbon,Light 20.539426153846154 6.37164 42.3256 Low carbon,Dark 13.1902 13.1902 13.1902 Phloroglucinol 11.47118 7.99304 13.9574 Silicon starvation,12h 29.6901 29.6901 29.6901