Table 4.

Three-way ANOVA for analyses of differences in nitrogen isotopic composition (δ¹⁵N), ¹³C/¹²C discrimination (Δ¹³C), leaf nitrogen content (%N) and leaf carbon content (%C) of offspring ramets with ‘integration’, ‘nitrogen form’ and ‘water status’ as main factors

Effect	df	δ15N		Δ13C		%N		%C
		F	P	F	P	F	P	F	P
Integration	1	0·668	0·417	3·338	0·073	2·498	0·120	0·259	0·613
Nitrogen	1	46·831	<0.001	0·179	0·674	0·009	0·924	0·165	0·686
Water	1	3·615	0·063	4·690	0.035	4·016	0.050	14·700	<0.001
Integration × nitrogen	1	3·305	0·075	0·126	0·724	0·376	0·542	1·284	0·262
Integration × water	1	7·740	0.007	0·535	0·468	5·796	0.020	5·030	0.029
Nitrogen × water	1	1·373	0·246	0·021	0·886	0·789	0·378	0·906	0·345
Integration × nitrogen × water	1	1·696	0·198	1·637	0·206	2·252	0·139	0·243	0·624
Error	54

See Figs 4 and 5 for data.

Significant effects (P < 0·05) are shown in bold type.

df, degrees of freedom.