Enduro

Barley

Variety Description

Varieties used for comparison: 'CDC Alamo' and 'CDC Rattan'

Summary: 'Enduro' has a narrower flag leaf than 'CDC Alamo'. The flag leaf blade of 'Enduro' has weaker pubescence than 'CDC Alamo'. 'Enduro' has weaker anthocyanin colouration of the tips of the lemma awns at anthesis than 'CDC Rattan'. The spike attitude of 'Enduro' is less erect than 'CDC Rattan'. 'Enduro' has a shorter spike, excluding the awns, than 'CDC Alamo' and 'CDC Rattan'. The kernel of 'Enduro' has longer rachilla hairs than 'CDC Alamo'. 'Enduro' has a taller plant height than 'CDC Rattan'.

Description:

PLANT: two row, hulless waxy spring barley, absent or very sparse pubescence on the sheaths of the lower leaves, intermediate to semi-prostrate growth habit

FLAG LEAF: very sparse to sparse pubescence on the blade, very sparse to sparse pubescence on the sheath, no anthocyanin colouration of the auricles, sparse pubescence on the auricle margins

SPIKE: mid-season emergence, v-shaped collar, very weak to weak anthocyanin colouration of the tips of the lemma awns, semi-erect to horizontal attitude, strong to very strong glaucosity, parallel shape, medium to dense density, divergent attitude of the sterile spikelet, medium length of first segment of rachis at ripening, medium curvature of first segment of rachis at ripening, the length of the glume and awn relative to grain of the median spikelet is equal, lemma awns are longer relative to spike, lemma awns are rough

KERNEL: husk absent, long rachilla hair, weak spiculation of inner lateral nerves of dorsal side of lemma, no hairiness of the ventral furrow, frontal to clasping disposition of lodicules, horseshoe shaped basal markings, medium to long length, medium width

AGRONOMY: fair to good resistance to lodging and shattering, fair to good tolerance to straw breaking and neck breaking, fair tolerance to drought, poor malting quality

Origin & Breeding History: 'Enduro' (experimental designations YU 501-039 and HB813) originated from the cross Merlin/*2 Baronesse made in Bozeman, Montana in July 1997 using the pedigree breeding method. The F1 was grown near Yuma, Arizona in the spring of 1998 and F2 seed planted near Bozeman, Montana in the spring of 1998. F2 heads were selected in September 1998, threshed and planted as F3 head rows near Bozeman, Montana in May 1999. Individual F3 heads were selected from agronomically acceptable rows in the fall of 1999 and planted as F4 head rows in the spring of 2000. In the fall of 2000, individual F4 heads were selected and these were planted as single F5 head rows near Yuma, Arizona in the fall of 2000. One of the F5 rows was selected in April 2001 and given the designation YU 501-039. The F6 through F9 were tested for yield and other agronomic traits in Westbred, LLC's and Agricore United's trials from 2001 through 2005. 'Enduro' was tested in the Canadian Hulless Barley Coop test as HB813 in 2004 and 2005.

Tests & Trials: Test and trials were conducted during the summers of 2006 and 2007 in Neapolis, Alberta. Plots consisted of 5 rows with a row length of 5 meters and a row spacing of 23 cm. There were 3 replicates arranged in an RCB design with each variety appearing 12 times within the trial.

Comparison tables for 'Enduro' with reference varieties 'CDC Alamo' and 'CDC Rattan'

Flag leaf width (mm)

Spike length, excluding awns (cm)

Plant height (cm)

Click on image for larger view

Barley: 'Enduro' (left) with reference varieties 'CDC Alamo' (centre) and 'CDC Rattan' (right)