Scorpion

Flax

Denomination: 'Scorpion'
Botanical Name: Linum usitatissimum
Applicant/Holder: Limagrain Nederland B.V.
P.O. 1
NL-4410 AA
Rilland
Netherlands
Breeder: Innoseeds B.V., Vlijmen, Netherlands
Agent in Canada: FP Genetics Inc.
426 McDonald Street
Regina, Saskatchewan
S4N 6E1
Canada
Tel: 306-791-1045 x.223
Application Date: 2006-06-20
Application Number: 06-5513
Grant of Rights Date: 2009-06-17
Certificate Number: 3531
Date rights surrendered: 2010-07-28

Variety Description

Variety used for comparison: 'Taurus'

Summary: Plant height and the length of the main axis of the plants of 'Scorpion' are taller and longer than those of 'Taurus'. The seed of 'Scorpion' is yellow whereas it is medium brown in 'Taurus'.

Description:

HYPOCOTYL: medium anthocyanin colouration

FLOWER: flattened disk shape, medium size corolla, no longitudinal folding of petals, absent or very weak sepal dotting, medium blue petal, white filament, blue anthers, yellow pollen, style with white and very light blue at top and light blue to blue at base, pale blue stigma

CAPSULE: medium size, early maturity, semi-dehiscent, ciliation of false septa present
SEED: yellow, medium size

DISEASE RESISTANCE: immune to Flax rust (Melampsora lini, Race 371), moderately resistant to Flax wilt (Fusarium oxysporum f.sp. lini)

PESTICIDE RESISTANCE: tolerant to Buctril M and Clethodim (Centurion), susceptible to desiccation by Reglone

AGRONOMY: good resistance to shattering, capsule loss and lodging, low capability to produce basal branching

USE: oilseed flax variety

Origin & Breeding History: 'Scorpion' arose from the cross between 'Omega' and 'Karen' conducted at the Innoplant breeding station at Lelystad, the Netherlands in 1992. In 1994, a single plant was selected, followed by line selection and replicated yield trials. Selection criteria included yield, oil content, resistance to lodging and fusarium resistence.

Tests & Trials: Tests and trials were conducted during the summers of 2006 and 2007 at the Kernen Crop Research Farm, University of Saskatchewan, Saskatoon, Saskatchewan. Trials consisted of two entries in a randomized complete block design with 2 replications. There were 6 rows per plot, row length was 3.66 meters with 30.5 cm between rows (6.69 square meters). The trials were seeded at a rate of 33.6 grams per plot (50kg/ha).


Comparison tables for 'Scorpion' with reference variety 'Taurus'

Plant height (cm)

  'Scorpion' 'Taurus'
2006 mean 45.9 55.1
std. deviation 2.01 2.99
2007 mean 53.0 56.0
std. deviation 3.7 3.5

Plant: length of main axis (cm)

  'Scorpion' 'Taurus'
2006 mean 32.3 43.8
std. deviation 1.42 2.55
2007 mean 34.1 42.9
std. deviation 4.5 4.1

Days to flowering (10% of plants with one or more open flowers)

  'Scorpion' 'Taurus'
2006 53 57
2007 56 58

Click on image for larger view
Scorpion
Flax: 'Scorpion' (left) with reference variety 'Taurus' (right)

Click on image for larger view
Scorpion
Flax: 'Scorpion' (left) with reference variety 'Taurus' (right)

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