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AAC Bright


Denomination: 'AAC Bright'
Botanical Name: Linum usitatissimum
Applicant/Holder: Agriculture & Agri-Food Canada, Morden Research and Development Centre
Unit 100-101 Route 100
Morden, Manitoba
R6M 1Y5
Breeder: Scott Duguid, Agriculture & Agri-Food Canada, Morden, Manitoba
Agent in Canada: Agriculture & Agri-Food Canada
Office of Intellectual Property and Commercialization
107 Science Place
Saskatoon, Saskatchewan
S7N 0X2
Tel: (306) 203-1383
Application Date: 2017-05-02
Provisional Protection:: 2017-05-02
Application Number: 17-9208
Grant of Rights Date: 2019-12-05
Certificate Number: 6098
Grant of Rights Termination Date: 2039-12-05

Variety Description

Varieties used for comparison: 'CDC Bethune', 'Linola 2047', 'AC Nugget' and 'Omega'

Summary: The distal end of the filament of 'AAC Bright' is white whereas it is blue for 'CDC Bethune', 'Linola 2047' and 'AC Nugget'. The stigma of 'AAC Bright' is white whereas it is pale blue for 'CDC Bethune' and pale violet for 'Linola 2047' and 'AC Nugget'. At maturity, the ciliation of the false septa of the boll is present for 'AAC Bright' whereas it is absent for 'CDC Bethune'. At maturity, 'AAC Bright' has a boll that is indehiscent whereas 'CDC Bethune', 'Linola 2047', and 'Omega' have a boll that is semi-dehiscent. The seed colour at maturity is yellow for 'CDC Bright' whereas the seed colour at maturity is medium brown for 'CDC Bethune'.


HYPOCOTYL: weak intensity of anthocyanin colouration

FLOWER: first flower present on 10 percent of plants at 52 days from planting, absent or very weak dotting of sepal at bud stage, when fully open corolla is medium sized and flattened disc shape, blue when fully developed, no longitudinal folding of petals, overlapping petals
STAMEN: filament white at distal and basal end, blue anthers
STYLE: white at distal end, blue at basal end
STIGMA: white

BOLL: medium size, indehiscent, ciliation of false septa present, matures early
SEED: yellow, medium size

AGRONOMY: good resistance to lodging
USE: oilseed type

Origin & Breeding History: 'AAC Bright' (experimental designation 'FP2422') was developed by Agriculture and Agri-Food Canada at the Morden Research Station in Morden, Manitoba from the cross 'CDC Bethune' x 'M6155' conducted in 2001. The F2 and subsequent generations were advanced using the pedigree method with selection criteria for oil content, oil quality, lodging resistance and rust resistance. Single plant selections were made in the F3 generation. An F8 line, designated 'M8446', was selected and evaluated in preliminary yield trials in 2011 and for Fusarium wilt in Manitoba and Saskatchewan. 'M8446' was further evaluated in the 2012 Canadian Flax Evaluation Trials at various locations throughout Manitoba, Saskatchewan and British Columbia. In 2013 and 2014, 'M8446' was entered into the Flax Cooperative Test as 'FP2422'.

Tests & Trials: The comparative trials for 'AAC Bright' were conducted from 2014 to 2017 growing seasons in Morden, Manitoba. There were 2 replicates per variety arranged in a Randomized Complete Block (RCB) design. Plots consisted of 6 rows measuring 3.9 metres in length with a row spacing of 23 centimetres. Plots were seeded at a rate of 4.5 grams per square metre.

Click on image for larger view
AAC Bright
Flax: 'AAC Bright' (top) with reference varieties 'Linola 2047' (second from top), 'CDC Bethune' (centre), 'AC Nugget' (second from bottom), and 'Omega' (bottom)

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