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

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

Species	Sources	df	RM		SM		LM		RRM		SRM		LRM
Species	Sources		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

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
RM Root biomass, SM stem biomass, LM leaf biomass, RRM root relative biomass; SRM stem relative biomass, LRM leaf relative biomass

ISSN: 2730-7182