Table 1.

First and second-degree statistics for flowering time (FT) and northern corn leaf blight (NCLB) resistance of the 1487 phenotyped and genotyped inbred lines

	Trait
Parameter	FT	NCLB
mean(Mi)	55.2	4.8
range(Mi)	34.0−73.5	0.5−10.0
${\sigma }_G^2$	42.34	3.24
${\sigma }_{G.E}^2$	2.21	0.63
h2	0.95	0.87

FT is measured in number of days to female flowering after June 1.

NCLB is rated from 1-9 (sensitive-resistant).

M_i is the adjusted entry mean of genotype i calculated across all environments.

${\sigma }_G^2$ and ${\sigma }_{G.E}^2$ are the genotypic and genotype × environment interaction variances.

h² is the heritability on entry an mean basis.