Table 2.

Narrow-sense heritability (h2) estimates for three traits in three environments

Trait	Environment	h2 estimate	Reference
DF	Nursery	0.67	Singh et al. (1990)
	Winter nursery	0.68	Nienhuis and Singh (1988)
	Field	0.92	Atuahene-Amankwa et al. (2004)
WM	Nursery	0.33	Carneiro et al. (2011)
	Winter nursery	0.65	Carvalho et al. (2013)
	Field	0.78	Miklas et al. (2001)
SY	Nursery	0.21	White and Singh (1991)
	Winter nursery	0.29	Mendes et al. (2008)
	Field	0.70	Kolkman and Kelly (2002)

DF days to flowering (in days), WM white mold tolerance (in disease incidence), SY seed yield (in kg/hectare)