Increased soil moisture aggravated the competitive effects of the invasive tree Rhus typhina on the native tree Cotinus coggygria

Xiao Guo; Zhen-Wei Xu; Ming-Yan Li; Xiao-Huang Ren; Jian Liu; Wei-Hua Guo

doi:10.1186/s12898-020-00284-9

Table 1 Results of two-way ANOVA for the effects of water treatments, plant cultivation and their interactions on performance and functional traits of Rhus typhina and Cotinus coggygria

From: Increased soil moisture aggravated the competitive effects of the invasive tree Rhus typhina on the native tree Cotinus coggygria

	Rhus typhina						Cotinus coggygria
	Water treatments		Plant cultivation		Interaction effects		Water treatments		Plant cultivation		Interaction effects
	F	p	F	p	F	p	F	p	F	p	F	p
Height (cm)	11.026	0.00**	2.176	0.158	0.640	0.539	9.796	0.001**	451.81	0.00**	12.927	0.00**
Crown area (cm²)	14.652	0.00**	0.006	0.938	0.623	0.548	2.56	0.105	57.593	0.00**	2.491	0.111
RGR-H	12.186	0.000**	3.314	0.084	0.994	0.388	14.483	0.000**	34.468	0.000**	0.832	0.450
SLA (cm²/g)	0.706	0.508	1.872	0.189	0.916	0.419	1.635	0.221	25.320	0.000**	3.169	0.065
LAI	0.076	0.927	90.586	0.000**	1.478	0.262	3.317	0.061	6.311	0.022*	0.803	0.464
Chl	4.824	0.029*	4.806	0.049*	0.023	0.977	0.242	0.788	6.182	0.027*	1.389	0.284
Chla/Chlb	1.575	0.250	69.498	0.000**	4.471	0.038*	1.653	0.229	3.024	0.106	7.301	0.007**
A (μmol m⁻² s⁻¹)	0.161	0.853	0.011	0.918	2.133	0.161	3.010	0.087	36.548	0.000**	0.924	0.424
E (mmol m⁻² s⁻¹)	0.095	0.910	0.570	0.465	3.449	0.066	3.978	0.047*	9.718	0.009**	0.111	0.896
Gs (mmol m⁻² s⁻¹)	0.330	0.726	0.085	0.775	1.402	0.284	3.345	0.070	26.780	0.000**	0.322	0.731
Ci (mmol mol⁻¹)	0.243	0.788	0.501	0.492	0.667	0.531	0.554	0.589	3.196	0.099	0.189	0.830
WUE	0.438	0.655	5.854	0.032*	6.946	0.01*	1.714	0.221	12.42	0.004*	2.482	0.125
Total biomass (g)	1.095	0.355	0.205	0.655	1.531	0.242	26.759	0.000**	424.422	0.000**	26.484	0.000**
Leaf biomass (g)	7.636	0.004**	0.446	0.512	2.252	0.133	13.846	0.000**	299.123	0.000**	12.491	0.000**
Stem biomass (g)	0.517	0.605	0.003	0.958	1.213	0.319	19.317	0.000**	535.269	0.000**	19.453	0.000**
Root biomass (g)	1.708	0.208	1.655	0.214	1.903	0.176	4.100	0.034*	201.801	0.000**	3.927	0.038*
Root-shoot ratio	2.555	0.104	2.997	0.100	1.468	0.255	2.015	0.162	4.179	0.056	0.554	0.584
Leaf biomass ratio	2.398	0.118	0.100	0.755	0.136	0.874	1.039	0.374	26.198	0.000**	3.302	0.060
Stem biomass ratio	0.371	0.695	1.584	0.223	0.770	0.477	2.447	0.115	127.233	0.000**	3.689	0.045*
Root biomass ratio	1.815	0.190	3.074	0.096	1.685	0.212	2.030	0.160	4.622	0.045*	0.544	0.590

RGR-H relative growth rate of height, LAI leaf area index, SLA specific leaf area, Chl total chlorophyll concentration, Chla/Chlb chlorophyll a to b ratio, A maximum net photosynthetic rate, E transpiration rate, Gs stomatal conductance, Ci Intercellular carbon dioxide concentration, WUE water use efficiency
Significant effects are indicated by italic and asterisks: **p < 0.01, *0.01 < p ≤ 0.05

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