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Table 1 F values from two-way ANOVAs and ANCOVAs for all the biomass and allocation traits

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

Species Sources df RM SM LM RRM SRM LRM
  F P F P F P F P F P F P
A. artemisiifolia S 3 318.02 < 0.001 350.72 < 0.001 345.01 < 0.001 54.89 < 0.001 28.98 < 0.001 35.42 < 0.001
D 1 35.30 < 0.001 124.56 < 0.001 208.67 < 0.001 74.11 < 0.001 74.72 < 0.001 6.44 0.012
C 1 3.644 0.058 2.228 0.138 1.366 0.54 1.661 0.199 0.452 0.520 0.2 0.656
S × D 3 16.67 < 0.001 34.16 < 0.001 65.74 0.015 12.84 0.023 35.14 < 0.001 16.97 < 0.001
A. trifida S 3 1205.78 < 0.001 897.82 < 0.001 512.15 < 0.001 261.96 < 0.001 135.85 < 0.001 77.49 < 0.001
D 1 167.34 < 0.001 244.81 < 0.001 250.42 < 0.001 26.67 < 0.001 86.22 < 0.001 21.53 < 0.001
C 1 0.002 0.967 0.019 0.892 4.77 0.063 1.421 0.235 3.699 0.056 1.355 0.223
S × D 3 51.53 0.026 50.10 < 0.001 61.74 < 0.001 24.72 < 0.001 38.54 < 0.001 11.48 0.017
  1. The growth stage (S), population density (D) as main effects and the sum of coverage of the main companion species (C) was considered as a covariate in two-way ANOVAs and ANCOVAs
  2. RM Root biomass, SM stem biomass, LM leaf biomass, RRM root relative biomass; SRM stem relative biomass, LRM leaf relative biomass