Table 4. Estimates of genetic parameters under the G-0 model over 2 years.

Distribution parameter	Estimate		1st order parameter	Estimate		2nd order parameter	Estimate
	2011	2012		2011	2012		2011	2012
μ 1	90.57	90.62	m	37.78	32.93	σ p 2	512.54	581.13
μ 2	79.43	65.17	d a	20.4	20.13	σ mg 2	451.22	512.70
μ 3	32.23	12.80	d b	8.59	7.04	σ pg 2	38.94	32.81
μ 4	12.44	12.80	d c	15.89	12.42	σ 2	22.38	35.62
μ 5	50.25	43.65	i ab	3.64	7.04	h mg 2 (%)	88.03	88.22
μ 6	12.44	12.80	i ac	10.94	12.42	h pg 2 (%)	7.60	5.65
μ 7	12.42	12.80	i bc	-0.86	-0.67
μ 8	12.42	12.80	i abc	-5.81	-0.68

μ _1— μ ₈, eight component distributions; m, population mean; d _a, d _b, and d _c, additive effects of the first, second, and third major genes, respectively; i _ab, i _ac, i _bc, and i _abc, interaction effect of the first and second major genes, the first and third major genes, the second and third major genes, and the three major genes, respectively; σ _p ², phenotypic variation; σ _mg ², major gene variation; σ _pg ², polygenic variation; σ ², environmental variation; h _mg ², major gene heritability; h _pg ², polygene heritability.