Table 1.

ANOVAs for effects of spatial heterogeneity (homogeneous vs. parallel large patch vs. reciprocal large patch vs. parallel small patch vs. reciprocal small patch) and intraspecific competition (without vs. with competition) on the growth of Iris japonica at the whole container level.

Effect	df	Biomass	Number of ramets	Rhizome length
Heterogeneity (H)	4, 80	5.365∗∗	1.277	2.812∗
Competition (C)	1, 80	55.727∗∗∗	10.992∗∗	31.977∗∗∗
H × C	4, 80	1.107	0.234	1.176

Significance levels: ^∗∗∗P < 0.001, ^∗∗P < 0.01, ^∗P < 0.05.