condition mean min max 12pM Fe,Midday 30.3568 30.3568 30.3568 12pM Fe,Midnight 34.02565 31.5699 36.4814 58pM Fe,Midday 28.1402 28.1402 28.1402 58pM Fe,Midnight 37.57228571428571 23.0979 102.776 233pM Fe,Midnight 32.970533333333336 30.6085 35.1475 1160pM Fe,Midday 19.760685714285714 15.1037 27.4281 1160pM Fe,Midnight 16.320170833333332 9.84895 22.8295 High carbon,Dark 18.553171333333335 3.6203 37.4479 High carbon,Light 12.030186923076924 1.02123 27.8029 Low carbon,Dark 21.6107 21.6107 21.6107 Phloroglucinol 25.796133333333334 21.2028 31.9095 Silicon starvation,12h 25.0034 25.0034 25.0034