Table 1.

Estimated variance components and heritabilities for both traits from analysing the G₀-data together or each genetic group (purebred or crossbred) separately.

Data	DOA			DS
	Phenotypic variance	Genetic variance	Heritability	Phenotypic variance	Genetic variance	Heritability
All data	0.23	0.07	0.32 ± 0.05	63.1	34.6	0.55 ± 0.05
Pure RxR	0.26	0.056	0.22 ± 0.06	58.4	22.5	0.39 ± 0.07
RxS cross	0.18	0.061	0.34 ± 0.07	57.6	27.7	0.48 ± 0.08