Table 3.

Estimates of variety effects (v_j), variety heterosis (h_j), general combining ability (GCA) effects, and variety mean for grain yield under three management options and across environments over 2 yr (2008 and 2009).

Population	Optimal conditions				Managed drought				Managed low N				Across environments
	vj	hj	GCA	Mean	vj	hj	GCA	Mean	vj	hj	GCA	Mean	vj	hj	GCA	Mean
	———————————————————————————————————————— Mg ha–1 ————————————————————————————————————————
ECAVL1	−0.11	−0.05	−0.10	5.07	0.04	0.06	0.08	0.82	−0.05	−0.06	−0.04	2.98	−0.02	−0.03	−0.03	3.51
ECAVL2	0.51	0.02	0.28	5.77	0.65*	−0.17	0.16	1.61	0.96**	−0.02	0.46**	3.69	0.54	0.03	0.30*	4.09
ECAVL16	−0.66	−0.10	−0.43*	4.44	−0.09	−0.27	−0.31**	0.71	−1.15**	−0.14	−0.71***	1.71	−0.47	−0.19	−0.43**	2.93
ECAVL16-STR	0.40	−0.20	0.00	5.52	−0.18	−0.02	−0.11	0.81	0.33	−0.26	−0.09	3.24	0.15	−0.13	−0.05	3.70
ECAVL17	−0.46	0.32	0.09	4.74	−0.38	0.13	−0.06	0.47	−0.05	0.22	0.20	2.89	−0.35	0.20	0.03	3.21
ECAVL18	0.59	0.00	0.30	5.82	0.14	0.13	0.20	1.13	0.24	0.22	0.33	3.14	0.27	0.10	0.24	3.87
NIP25	−0.27	0.01	−0.13	4.85	−0.18	0.14	0.05	0.62	−0.37	0.04	−0.15	2.45	−0.13	0.02	−0.04	3.32
SE/LSD0.05†	0.38	0.25	0.17	0.56	0.25	0.17	0.11	0.51	0.36	0.24	0.16	0.72	0.30	0.20	0.13	0.35
Average heterosis		1.01***				0.21				0.74***				0.69***

*,**,*** Significant at P < 0.05, P < 0.01, and P < 0.001, respectively.

^†SE of variety, heterosis and GCA effects, LSD for mean grain yield.