Table 3.

Results of the mixed linear model applied for the MET-22 and for each envirotype considering all trials as confounded [linear model (5)] and heritabilities estimation

Trait	Group	Nb of environmentb	% Variancea					h2
			G	E	G × E	R	ε
SY	MET-22	22	24.7	55.5	5.8	3.8	10.1	0.98
	Envirotype EA	4	37.7	48.3	2.3	3.8	7.8	0.96
	Envirotype EB	8	38.5	34	8.7	4.8	14.1	0.95
	Envirotype EC	6	45.7	8.7	5.9	10.8	29	0.94
	Envirotype ED	4	28.9	34.8	15.9	5.3	15	0.83
SN	MET-22	18	33	40.4	8.1	4.9	13.5	0.98
	Envirotype EA	2	46.9	34.1	8.1	1.1	9.9	0.88
	Envirotype EB	7	49	27	9.4	2.1	12.5	0.96
	Envirotype EC	6	43.8	6.9	9.1	13.7	26.5	0.93
	Envirotype ED	3	29.6	32.5	11.5	7.4	19	0.81

Linear model (5): $Y_{\mathit{ijk}}=\mu +G_i+E_k+G_i\times E_k+\underset{\_}{R_{j\left(k\right)}}+\underset{\_}{{\epsilon }_{\mathit{ijk}}}$, with the genotype (G), the environment (E), the genotype by environment interaction (G × E) and the block (R) nested in the trial. Heritabilities (h²) were estimated using Eq. (6):$h^2=\frac{{\sigma }_G^2}{{\sigma }_G^2+\frac{{\sigma }_{G\times E}^2}{t}+\frac{{\sigma }_{\epsilon }^2}{r\ast e}}$

^aPercentage of variance explained by each parameter

^bNumber of trials considered for the evaluation of the different effects and estimation of heritabilities