condition mean min max 12pM Fe,Midday 23.1392 23.1392 23.1392 12pM Fe,Midnight 19.792900000000003 18.9597 20.6261 58pM Fe,Midday 19.5439 19.5439 19.5439 58pM Fe,Midnight 20.53927142857143 0.0 25.4347 233pM Fe,Midnight 22.297033333333335 20.5862 23.4718 1160pM Fe,Midday 17.501885714285713 16.1355 21.2437 1160pM Fe,Midnight 17.282225 14.688 19.5842 High carbon,Dark 26.475844 9.96956 44.038 High carbon,Light 21.845367692307693 5.3074 37.592 Low carbon,Dark 27.5898 27.5898 27.5898 Phloroglucinol 41.5941 32.8602 46.1351 Silicon starvation,12h 109.0 109.0 109.0