Table 1.

Heritabilities for the five flag leaf traits measured on the NIAB Elite MAGIC population in four test environments (harvest seasons 2016, 2017, 2018 and 2019).

Flag leaf trait per year	Heritability (h 2)
Area 2016	0.56
Area 2017	0.72
Area 2018	0.81
Area 2019	0.81
Length 2016	0.69
Length 2017	0.73
Length 2018	0.81
Length 2019	0.81
Width 2016	0.37
Width 2017	0.81
Width 2018	0.91
Width 2019	0.89
Length : width ratio 2017	0.81
Length : width ratio 2018	0.90
Length : width ratio 2019	0.87
Angle 2017	0.87
Angle 2018	0.89
Angle 2019	0.89