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Table 5 The two ragweeds of different population densities during growth stages (individual/m2; Mean ± SE)

From: The significance of biomass allocation to population growth of the invasive species Ambrosia artemisiifolia and Ambrosia trifida with different densities

Growth stages A. artemisiifolia A. trifida
Low-density High-density Low-density High-density
SS 235 ± 1.5 462 ± 2.8 196 ± 1.8 386 ± 3.2
VS 168 ± 1.9 396 ± 3.4 155 ± 1.3 256 ± 2.5
BS 43 ± 1.3 154 ± 2.5 45 ± 1.1 58 ± 1.7
MS 25 ± 0.6 46 ± 1.2 18 ± 0.7 35 ± 1.2