Table 1. Summary of heritability measures.

Heritability measure			Accounts for heteroscedasticity/covariances
Overall	Per genotype	Per pair	In ${\mathit{G}}_{\left(\mathit{g}\right)}$	In ${\mathit{C}}_{11\left(\mathit{g}\right)}$	In ${\mathit{C}}_{22\left(\mathit{g}\right)}$
$H_{Std}^2$	—	—	No/no	No/no	—
${\overline{H}}_{\text{Δ}\cdot {\cdot }_{BLUE}}^2$	${\overline{H}}_{\text{Δ}i{\cdot }_{BLUE}}^2$	$H_{\Delta i{j}_{BLUE}}^2$	Yes/yes	Yes/yes	—
$H_{Piepho}^2$	—	—	No/no	Yes/yes	—
${\overline{H}}_{\text{Δ}\cdot {\cdot }_{BLUP}}^2$	${\overline{H}}_{\text{Δ}i{\cdot }_{BLUP}}^2$	$H_{\Delta i{j}_{BLUP}}^2$	Yes/yes	—	Yes/yes
$H_{Cullis}^2$	—	—	No/no	—	Yes/yes
$H_{Oakey}^2$	—	—	Yes/yes	—	Yes/yes
${\overline{r}}_{\cdot }^2$	$r_i^2$	—	Yes/no	—	Yes/no
$H_{sim}^2$	—	—	Yes/yes	—	Yes/yes