Table 2.

Genetic parameter estimates for foliar sideroxylonal concentration measured at three sites

	Culcairn	Huntly	Lake Tyers
n*	505	489	493
Random model
σf2 (s.e.)†	21·41 (5·90)	21·31 (7·37)	12·55 (3·5)
σplot2 (s.e.)‡	6·48 (5·02)	13·80 (8·19)	5·90 (2·74)
σe2 (s.e.)§	62·99 (5·73)	100·11 (9·12)	31·99 (2·9)
Fixed model replicate (3 d.f.)
Wald statistic	10·67	8·06	4·19
χ2 prob.¶	0·014	0·045	0·242
Fixed model population (7 d.f.)
Wald statistic	118·32	76·91	84·48
χ2 prob.	<0·001	<0·001	<0·001
h2 (s.e.)**	0·59 (0·13)	0·39 (0·12)	0·62 (0·14)
CVA††	48·61	48·5	37·21

* n: total number of trees included in the REML analysis.

^† σ_f²: estimated variance component attributable to families within populations.

^‡σ_plot²: residual plot-level variance component.

^§ σ_e²: residual tree-level variance component.

^¶ χ² probability of Wald statistic and associated degrees of freedom.

** h²: average narrow-sense heritability.

^†† CV_A: the additive genetic coefficient of variance.