Table 1.

Estimates of narrow-sense heritability for grain yield (GY), stay-green (SG), plant height (PH) and flowering time (FT) from prediction models using only the pedigree-based matrix (A-BLUP), using only the unscaled (G) or the scaled (G_s) genomic matrix and using the combined K matrix (K-BLUP)

Model	GY		SG		PH		FT
	G	Gs	G	Gs	G	GS	G	GS
A-BLUP (w = 1)	0.40	0.40	0.61	0.61	0.70	0.70	0.63	0.63
G-BLUP (w = 0)	0.28	0.34	0.41	0.46	0.72	0.77	0.62	0.67
K-BLUP (w = maxLL)a	0.43	0.46	0.56	0.59	0.78	0.82	0.72	0.76

^amaxLL: weight that maximized the REML log-likelihood in each case; for GY: w = 0.54 with G and w = 0.48 with G_s, for SG: w = 0.43 with G and w = 0.38 with G_s, for PH: w = 0.19 with G and w = 0.16 with G_s and for FT: w = 0.34 with G and w = 0.29 with G_s