Bentley

Barley

Denomination: 'Bentley'
Previously Proposed Denomination: 'TR05669'
Botanical Name: Hordeum vulgare
Applicant/Holder: Alberta Agriculture and Forestry
Field Crop Development Centre
5030 - 50'th Street
Lacombe, Alberta
T4L 1W8
Canada
Breeder: Patricia Juskiw, Alberta Agriculture and Forestry, Lacombe, Alberta
Agent in Canada: Canterra Seeds
201-1475 Chevrier Boulevard
Winnipeg, Manitoba
R3T 1Y7
Canada
Tel: 204-988-4685
Application Date: 2008-05-06
Application Number: 08-6331
Grant of Rights Date: 2010-11-09
Certificate Number: 3967
Grant of Rights Termination Date: 2028-11-09

Variety Description

Variety used for comparison: 'AC Metcalfe'

Summary: The plants of 'Bentley' are taller in height than those of 'AC Metcalfe'. 'Bentley' has flag leaf and spike that are longer than those of 'AC Metcalfe'. The frequency of plants with recurved flag leaves is medium in 'Bentley' whereas it is low in 'AC Metcalfe'. 'Bentley' has strong intensity of anthocyanin colouration on the auricules of the flag leaves whereas it is medium in 'AC Metcalfe'.

Description:

PLANT: two row, spring malting barley, semi-erect juvenile growth habit, absent or very sparse pubescence on the sheaths of the lower leaves

FLAG LEAF: medium frequency of plants with recurved flag leaves, absent or very sparse pubescence
FLAG LEAF SHEATH: absent or very weak glaucosity, weak pubescence
AURICLES: strong anthocyanin colouration, weak pubescence on the margins

SPIKE: mid-season spike emergence, platform shaped collar, weak anthocyanin colouration of the tips of the lemma awns, semi-erect attitude, weak glaucosity, parallel shape, medium density, divergent attitude of sterile spikelet, the length of the glume and its awn of the median spikelet is shorter relative to the grain
FIRST SEGMENT OF RACHIS: medium length, absent or very weak curvature
LEMMA AWNS: longer relative to the spike, rough spiculations on margins

KERNEL: absent or very weak anthocyanin colouration of nerves of the lemma at beginning of ripening, whitish aleurone layer, husk present, long rachilla hair, absent or very weak spiculation of inner lateral nerves of dorsal side of lemma, no hairiness on ventral furrow, medium length, medium width

AGRONOMY: fair resistance to lodging, fair resistance to shattering, good tolerance to straw breakage, fair tolerance to drought, good malting quality

Origin & Breeding History: 'Bentley' (experimental designations FB414, H93103, and TR05669) was developed at the Field Crop Development Center, Lacombe, Alberta, using a modified bulk pedigree system. It arose from the cross I92125/TR229 in 1993. The F2-F6 generations were grown in bulk from 1994 to 1998. The line H93103004 was selected from the F6-F7 to be grown in yield trials from 2000 to 2007. Selection criteria included grain yield, forage yield, test weight, 1000 kwt, lodging resistance, disease resistance, maturity, and malting quality. It was further tested as TR05669 in the Western Two Row Barley Cooperative, and as FB414 in the Western Forage Barley Cooperative in 2005.

Tests & Trials: Tests and trials were conducted during the summers of 2008 and 2009 in Lacombe, Alberta. Plots consisted of 8 rows with a row spacing of 0.14 meters and a row length of 2.5 meters. There were 3 replicates.


Comparison tables for 'Bentley' with reference variety 'AC Metcalfe'

Flag leaf length (cm)

  'Bentley' 'AC Metcalfe'
mean 2008 14.9 12.4
std. deviation 1.62 2.78
mean 2009 10.7 7.5
std. deviation 0.92 0.69

Spike length (cm)

  'Bentley' 'AC Metcalfe'
mean 2008 8.8 6.7
std. deviation 0.52 0.61
mean 2009 8.8 6.2
std. deviation 0.65 0.40

Plant height (cm)

  'Bentley' 'AC Metcalfe'
mean 2008 89.75 85.25
std. deviation 5.25 6.4
mean 2009 61.9 59.2
std. deviation 2.17 3.1

Click on image for larger view
Bentley
Barley: 'Bentley' (left) with reference variety 'Metcalfe' (right)

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