TABLE 3.

Observed phenotypic traits of barley spikes and number of accessions per trait value in the study panel.

Phenotypic trait	Possible values	# Accessions
Row-type convarity	convar. vulgare/convar. hexastichon	5,572
	convar. distichon	3,030
	convar. deficiens	411
	convar. labile	293
	convar. intermedium	207
Spike density	Lax	7,804
	Middle	1,483
	Dense	234
Spike branching	Unbranched	9,367
	Branched	153
Spike brittleness	No	9,517
	Yes	4
Grain hull / Cover of caryopses	Covered grain	8,630
	Naked grain	882
Color of naked seeds	Yellow	726
	Between black and brown	57
	Black	50
	Green	32
	Purple	8
	Other	9
Length of rachilla hairs	Long	6,019
	Short	3,474
Awns roughness	Rough	8,926
	Smooth	421
Presence of awns central spikelet	Awnless or very short awns (tips)	71
	Awns short (up to spike length)	450
	Awns long (1.5–3 times spike length)	8,850
	Sessile hoods (sessile or on short)	27
	Elevated hoods (Hood over 1 cm long awns shaped stems)	19
	Hoods with end awn	19
	Elevated hoods with end awn	34
Presence of awns lateral spikelets	Awnless or very short awns (tips)	203
	Awns short (up to spike length)	419
	Awns long (1.5–3 times spike length)	5,276
	Sessile hoods (sessile or on short)	19
	Elevated hoods (Hood over 1 cm long awns shaped stems)	17
	Hoods with end awn	15
	Elevated hoods with end awn	20
Presence of awns on glumes	Awnless or very short awns (tips)	8,725
	Awns short (up to spike length)	785
	Awns long (1.5–3 times spike length)	10
	Sessile hoods (sessile or on short)	0
	Elevated hoods (Hood over 1 cm long awns shaped stems)	0
	Hoods with end awn	0
	Elevated hoods with end awn	1
Glume width	All glumes are narrow (<1 mm)	5,959
	All or some glumes are broad (1–2 mm)	56
Color of glumes	Yellow	5,614
	Gray	122
	Black	115
	Brown	92
	Purple	71
	Green	1
	Other	4