WestLin 71

Flax

Denomination: 'WestLin 71'
Botanical Name: Linum usitatissimum
Applicant/Holder: Crop Production Services (Canada) Inc.
538058 – 56 St. E
P.O. Box 5234
High River, Alberta
T1V 1M4
Canada
Breeder: Michelle Beaith, Crop Production Services (Canada) Inc., Saskatoon, Saskatchewan
Application Date: 2013-06-07
Application Number: 13-8056
Grant of Rights Date: 2015-03-23
Certificate Number: 5005
Grant of Rights Termination Date: 2035-03-23

Variety Description

Varieties used for comparison: 'CDC Bethune', 'Prairie Thunder' and 'Prairie Grande'

Summary: The stem length of 'WestLin 71' is shorter than that of 'CDC Bethune' and 'Prairie Grande'. 'WestLin 71' is later flowering than 'Prairie Thunder' and 'Prairie Grande'. The distal end of the filament of 'WestLin 71' is blue whereas it is white on 'Prairie Thunder' and 'Prairie Grande'. 'WestLin 71' has no ciliation of the false septa whereas it is present in 'Prairie Grande'. At maturity, the seed of 'WestLin 71' is light to medium brown whereas it is reddish brown in 'Prairie Thunder' and 'Prairie Grande'.

Description:

FLOWER: absent or very weak sepal dotting at bud stage, violet crown just before opening, flattened disk shape, medium sized corolla, violet when fully developed, no longitudinal folding of the petals
STAMEN: blue at distal end of filament, white at basal end of filament, blue anthers
PISTIL: blue at basal end of style

CAPSULE: medium size, ciliation of the false septa absent
SEED: early maturing, light to medium brown

DISEASE CHARACTERISTICS: resistant to flax rust (Melampsora lini), moderately resistant to flax wilt (Fusarium oxysporum f. sp. lini)

AGRONOMY: good resistance to lodging

USE: oilseed type

Origin & Breeding History: 'WestLin 71' (experimental designations 06-44-F6-368, FP2347) was developed from the cross, 04-21-F4-222 x 'CDC Bethune' conducted in 2006 in Vegreville, Alberta. The line was advanced using the pedigree method with single plant selections from nursery rows in the F2 and F3 generations. Early selections were based on lodging resistance, oil quality, early maturity and disease resistances. The F6 generation was grown in full size plots at a single location and additionally selected for seed size, fatty acid content and seedling vigour. In 2010, a single plant selection, designated 06-44-F6-368, was evaluated in preliminary replicated yield trials at six locations throughout Manitoba, Saskatchewan and Alberta. In 2011 and 2012, it was entered and tested in the Flax Cooperative test as FP2347.

Tests & Trials: Tests and trials for 'WestLin 71' were conducted during the summers of 2012 and 2013 in Duck Lake, Saskatchewan. The trial consisted of 4 replicates per variety made up of 6 rows per replicate measuring approximately 5.0 metres in length with a row spacing of 25 centimetres. Height measurements were based on 40 and 50 measurements per variety each test year, respectively.


Comparison tables for 'WestLin 71' with reference varieties 'CDC Bethune', 'Prairie Thunder' and 'Prairie Grande'

Stem length (cm)

  'WestLin 71' 'CDC Bethune' 'Prairie Thunder' 'Prairie Grande'
mean 2012 61 63 56 64
std. deviation 2012 3.4 4.9 4.0 5.8
mean 2013 63 68 63 66
std. deviation 2013 4.9 3.9 3.6 4.1

Days to flowering

  'WestLin 71' 'CDC Bethune' 'Prairie Thunder' 'Prairie Grande'
mean 2012 56 56 51 53
mean 2013 54 54 51 48

Click on image for larger view
WestLin 71
Flax: 'WestLin 71' (centre) with reference varieties 'CDC Bethune' (left) and 'Prairie Thunder' (right)

Click on image for larger view
WestLin 71
Flax: 'WestLin 71' (centre) with reference varieties 'CDC Bethune' (left) and 'Prairie Grande' (right)

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