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AAC Marvelous


Denomination: 'AAC Marvelous'
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: 17-9209
Grant of Rights Date: 2019-12-05
Certificate Number: 6099
Grant of Rights Termination Date: 2039-12-05

Variety Description

Varieties used for comparison: 'Bravo', 'CDC Bethune', 'CDC Sorrel' and 'Prairie Sapphire'

Summary: At bud stage, the dotting on the sepal is weak for 'AAC Marvelous' whereas the dotting is absent or very weak on the sepal of the reference varieties. The colour of the distal end of the filament is white for 'AAC Marvelous' whereas the colour of the distal end of the filament on 'CDC Bethune' is blue. 'AAC Marvelous' has a pale blue stigma whereas 'CDC Sorrel' has a white stigma. The ciliation of the false septa of the boll at maturity is present for 'AAC Marvelous' whereas the ciliation of the false septa of the boll is absent on 'Bravo', 'CDC Bethune' and 'Prairie Sapphire'. The boll on 'AAC Marvelous' is indehiscent at maturity whereas the boll on the reference varieties are semi-dehiscent at maturity.


HYPOCOTYL: weak intensity of anthocyanin colouration

FLOWER: weak sepal dotting at bud stage, flattened disc shape, medium sized corolla, blue when fully developed, no longitudinal folding of the petals, overlapping petals
STAMEN: filament white at distal and basal end, blue anthers
STYLE: white at distal end, blue at basal end
STIGMA: pale blue

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

DISEASE REACTIONS: resistant to flax rust (Melampsora lini, Race 371); moderately resistant to flax wilt (Fusarium oxysporum f. sp. lini) and powdery mildew (Oidium lini); susceptible to Pasmo (Septoria linicola (imperfect) Mycosphaerella linorum (perfect))

AGRONOMY: good resistance to lodging
USE: oilseed type

Origin & Breeding History: 'AAC Marvelous' (experimental designation 'FP2401') was developed by Agriculture and Agri-Food Canada at the Morden Research Station in Morden, Manitoba from the cross 'Prairie Thunder' x 'FP2236' conducted in 2006. The F2 and subsequent generations were advanced using the pedigree method with selection criteria of oil content, oil quality, lodging resistance and rust resistance in nurseries and yield trials. Single plant selections were made in the F3 generation. An F6 line, designated A351, was selected and evaluated in preliminary yield trials in 2010 and for yield, lodging resistance, oil content and quality, and resistance to powdery mildew and pasmo in Manitoba and Saskatchewan. An F8 line, designated M8449, was further evaluated in the 2012 Canadian Flax Evaluation Trials at various locations throughout Manitoba, Saskatchewan and British Columbia. In 2013 and 2014, it was entered into the Flax Cooperative Test as 'FP2401'.

Tests & Trials: The comparative trials for 'AAC Marvelous' 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 Marvelous
Flax: 'AAC Marvelous' (top) with reference varieties 'CDC Sorrel' (second from top), 'Bravo' (centre), 'Prairie Sapphire' (second from bottom), and 'CDC Bethune' (bottom)

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