Denomination: 'PR9CN408'
Botanical Name: Brassica napus
Applicant/Holder: Bayer CropScience Inc.
Site 600, R.R. #6
P.O. Box 117
Saskatoon, Saskatchewan
S7K 3J9
Breeder: Stewart Brandt, Bayer CropScience Inc., Saskatoon, Saskatchewan
Application Date: 2010-07-08
Application Number: 10-7032
Protective direction granted: 2010-07-08
Grant of Rights Date: 2012-05-09
Certificate Number: 4306
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2014-05-09
Date rights surrendered: 2015-02-11

Variety Description

Varieties used for comparison: 'PPS98-274', 'PPS02-364' and '5030'

Summary: 'PR9CN408' flowers later than 'PPS02-364'. The flower petal of 'PR9CN408' is shorter and narrower than the reference varieties. 'PR9CN408' has a shorter silique than 'PPS98-274' and 'PPS02-364'. The beak of 'PR9CN408' is longer than '5030'. 'PR9CN408' has a shorter pedicel than 'PPS98-274'.


PLANT: male fertile restorer line, spring seasonal type, medium height at maturity

COTYLEDON: narrow to medium width, short to medium length

LEAF: medium green, few to medium number of lobes, rounded margin, low to medium density of shallow to medium depth dentations, medium to long, medium to wide, medium length petiole

FLOWER PETALS: yellow, short, narrow
SILIQUE: horizontal attitude, short to medium length, long beak, short pedicel
SEED: black

AGRONOMIC CHARACTERISTICS: good resistance to lodging

QUALITY CHARACTERISTICS: erucic acid is 0.03% of total fatty acids, oil content is 49.32% of whole dried seed, protein is
23.1% of dried oil free meal, low glucosinolates (12.37 µmol/g)

DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam) and resistant to White Rust (Albugo candida, races 7a & 2v)

Origin & Breeding History: 'PR9CN408' is a restorer inbred line used in F1 hybrid production, that contains the Rf3 gene construct in homozygous state. 'PR9CN408' is a doubled haploid line that was produced in Canada in 2007. It was selected in 2008 on the basis of fertility restoration of numerous male sterile lines and expression of tolerance to glufosinate ammonium herbicide. Other selection criteria included height, vigour, maturity, blackleg resistance, oil content, fatty acid profile, glucosinolate content and combining ability.

Tests & Trials: Trials were conducted in Saskatoon, Saskatchewan during the summers of 2009 and 2010. In 2009, the trial was set up with 3 replicates arranged in a RCB design. In 2010, the trial setup was 3 replicates arranged in Lattice design. Each year the plots consisted of 3 rows with a row length of 6 metres and a row spacing of 50 cm.

Comparison tables for 'PR9CN408' with reference varieties 'PPS98-274', 'PPS02-364' and '5030'

Days to flowering

  'PR9CN408' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=3.3) 44.5 45.5 41 43

Flower petal length (mm)

  'PR9CN408' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.3) 12.0 15.3 15.5 15.3
std. deviation 0.8 1.0 0.8 1.0

Flower petal width (mm)

  'PR9CN408' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.99) 5.1 6.2 6.7 7.2
std. deviation 0.7 0.7 0.5 1.0

Silique length (mm)

  'PR9CN408' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=5.4) 55.3 68.0 62.0 59.8
std. deviation 5.7 5.4 6.0 5.3

Beak length (mm)

  'PR9CN408' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=3.7) 13.5 13.3 13.0 9.7
std. deviation 1.6 1.7 1.7 1.8

Pedicel length (mm)

  'PR9CN408' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=2.61) 16.9 23.3 17.4 19.4
std. deviation 2.1 2.5 2.4 3.0

Click on image for larger view
Canola: 'PR9CN408' (left) with reference varieties 'PPS98-274' (centre left), 'PPS02-364' (centre right) and '5030' (right)

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