Table 2.

Analysis of variance for the growth rate of P. australis contrasting treatments (shaded or control, fixed factor), meadows (random factor), and genotypes (random factor, nested within meadow).

Source	df	MS	F	P
Meadow	5	0.50	2.30	0.12
Treatment	1	0.43	0.88	0.40
Genotype (Meadow)	12	0.22	1.19	0.31
Meadow × Treatment	5	0.50	3.45	0.04
Treatment × Genotype (Meadow)	12	0.15	0.78	0.65
Residual	55	0.19

Significant factors (P < 0.05) are shown in bold.