TABLE 1.

Descriptive statistics, variance components, and broad-sense heritability (H²) response to common rust in the Drought Tolerant Maize for Africa (DTMA) panel and the bi-parental doubled haploid (DH1) population.

Population	No. of lines	Mean	Min.	Max.	Median	SDa	Variance componentsb			h2c
							${\mathrm{\sigma }}_g^2$	${\mathrm{\sigma }}_{ge}^2$	${\mathrm{\sigma }}_e^2$
DTMA	282	2.32	1.26	4.13	2.30	0.52	0.33**	0.25**	0.24	0.80
DH1	189	2.25	1.73	3.10	2.20	0.23	0.10**	0.08**	0.20	0.57

^aSD, standard deviation.

^b${\mathrm{\sigma }}_g^2$, genotypic variance.

${\mathrm{\sigma }}_{ge}^2$, genotype × environment interaction variance.

${\mathrm{\sigma }}_e^2$, error variance.

**Significant at P < 0.01.

^ch², broad-sense heritability.