condition mean min max 12pM Fe,Midday 6.96851 6.96851 6.96851 12pM Fe,Midnight 19.994300000000003 19.8581 20.1305 58pM Fe,Midday 11.647 11.647 11.647 58pM Fe,Midnight 11.7004 0.0 17.4566 233pM Fe,Midnight 14.8587 12.9593 16.6687 1160pM Fe,Midday 8.436687142857142 6.19415 10.1124 1160pM Fe,Midnight 14.756786666666667 3.33913 30.5702 High carbon,Dark 7.173188 1.22718 17.1623 High carbon,Light 2.566735384615385 0.0 7.89725 Low carbon,Dark 11.3236 11.3236 11.3236 Phloroglucinol 25.309433333333335 14.0703 43.2564 Silicon starvation,12h 7.04865 7.04865 7.04865