Combining abilities and genetic parameters for grain yield and some agronomic traits in maize (Zea mays L.)

Beni-Suef University Journal of Basic and Applied Sciences

Table 5 Genetic parameters and their interactions with locations for all the studied traits combined across two locations

Genetic parameters	DTS	PHT	EHT	Epos%	E100P	EL	ED	KR⁻¹	GY ard fed⁻¹
σ² GCA	0.65	124.24	149.87	4.60	23.65	1.142	− 0.001^@	4.93	3.07
σ²SCA	0.25	13.71	7.34	− 0.52^@	− 2.17^@	0.44	0.002	3.04	2.05
σ²GCA × Loc	0.05	0.96	− 2.14^@	− 0.04^@	0.11	0.46	0.004	0.41	0.51
σ²SCA × Loc	− 0.13	4.36	0.71	0.89	17.15	0.05	0.005	0.02	− 1.72^@

^@Variance estimates preceded by negative sign is considered zero, Robinson et al. [28]