condition mean min max 12pM Fe,Midday 30.0098 30.0098 30.0098 12pM Fe,Midnight 28.812849999999997 28.3861 29.2396 58pM Fe,Midday 24.0187 24.0187 24.0187 58pM Fe,Midnight 23.107914285714287 0.0 31.2366 233pM Fe,Midnight 24.397133333333333 22.9031 25.4946 1160pM Fe,Midday 26.954885714285716 25.5862 29.5287 1160pM Fe,Midnight 17.880458333333333 15.1885 20.8038 High carbon,Dark 21.140620000000002 3.68641 38.7351 High carbon,Light 17.231794615384615 1.95315 33.1755 Low carbon,Dark 16.1732 16.1732 16.1732 Phloroglucinol 17.453733333333332 13.4186 21.7813 Silicon starvation,12h 27.4567 27.4567 27.4567