Denomination: 'PB1CN234'
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: 2013-06-28
Application Number: 13-8074
Protective direction granted: 2013-06-28
Grant of Rights Date: 2015-06-23
Certificate Number: 5038
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2017-06-23
Grant of Rights Termination Date: 2035-06-23

Variety Description

Varieties used for comparison: 'PB0CN216', 'PPS01-140 B-Line' and '5440'

Summary: The cotyledon of 'PB1CN234' is narrower and shorter than that of 'PB0CN216' whereas it is shorter than that of '5440'. 'PB1CN234 has fewer leaf lobes than the reference varieties. The leaf of 'PB1CN234' is longer than that of 'PB0CN216' and 'PPS01-140 B-Line'. 'PB1CN234' flowers and matures later than 'PPS01-140 B-Line' and '5440'. The petal of 'PB1CN234' is shorter and narrower than that of 'PB0CN216'. The silique of 'PB1CN234' is shorter than that of the reference varieties. 'PB1CN234' has a shorter silique beak than 'PB0CN216' and '5440' whereas it is longer than 'PPS01-140 B-Line'. The pedicel of 'PB1CN234' is longer than that of 'PB0CN216'. At maturity, the plant of 'PB1CN234' is shorter than that of 'PB0CN216'.


PLANT: male fertile inbred line, spring type, medium to tall at maturity

COTYLEDON: medium to wide, medium length

LEAF: medium green, very few to few lobes, rounded margin, low to medium density of shallow margin dentations, long, medium width, petiole length ranging from short to medium-long

FLOWER PETAL: yellow, medium length, narrow to medium width
SILIQUE: erect to semi-erect attitude, short to medium length, short to medium length beak and pedicel
SEED: black

AGRONOMIC CHARACTERISTICS: medium resistance to lodging
QUALITY CHARACTERISTICS: no erucic acid, oil content is 48.0% of whole dried seed, protein is 46.3% of dried oil free meal, low glucosinolates (10.8 µmol/g)
CHEMICAL REACTION: susceptible to glufosinate ammonium herbicides
DISEASE REACTION: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PB1CN234' is the male fertile maintainer line of 'PA1CN134'. It is a non-transgenic double haploid line which was extracted in 2008 from the F1 generation of a cross produced in Saskatoon, Canada in 2007. 'PB1CN234' was selected in 2009 and 2010 on the basis of per se performance of height, vigour, maturity, blackleg resistance, oil content, fatty acid profile and glucosinolate content.

Tests & Trials: Trials conducted in the summers of 2012 and 2013 in Saskatoon, Saskatchewan were set up in a RCB Design with 3 replications per variety. Plots each year consisted of 3 rows 6 metres in length with a spacing of 25 cm between rows and 50 cm between plots. There were 30 measurements of the cotyledon, leaf, flower and plant height characteristics and 60 measurements of the silique characteristics. Means are based on a two year average. Differences are significant at the 2% probability level based on LSD values.

Comparison tables for 'PB1CN234' with reference varieties 'PB0CN216', 'PPS01-140 B-Line' and '5440'

Cotyledon width (mm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=1.4) 24.6 27.6 23.7 25.4
std. deviation 1.9 2.6 1.9 2.0

Cotyledon length (mm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=1.2) 12.5 14.3 12.0 13.6
std. deviation 1.1 1.0 0.9 1.3

Leaf lobe number

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=0.4) 1.4 4.6 2.8 3.2

Leaf length (mm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=12.3) 245 221 209 255
std. deviation 9 16 14 10

Days to flower

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean 42 43 40 39

Flower petal length (mm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=0.5) 14.5 15.7 13.4 14.3
std. deviation 0.3 0.4 0.4 0.4

Flower petal width (mm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=0.4) 6.3 7.5 6.1 6.0
std. deviation 0.3 0.3 0.2 0.3

Silique length (mm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=2.3) 55.3 75.2 59.4 62.5
std. deviation 3.6 1.1 1.8 2.5

Beak length (mm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=0.6) 10.3 12.9 7.4 11.6
std. deviation 0.8 0.8 1.0 0.5

Pedicel length (mm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=2.0) 23.9 21.1 22.1 23.4
std. deviation 0.8 2.8 2.8 4.8

Days to maturity

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean 96 95 93 93

Plant height (cm)

  'PB1CN234' 'PB0CN216' 'PPS01-140 B-Line' '5440'
mean (LSD=3.9) 124 135 129 128
std. deviation 6 4 6 4

Click on image for larger view
Canola: 'PB1CN234' (far left) with reference varieties 'PPS01-140 B-Line' (centre left), 'PB0CN216' (centre right) and '5440' (far right)

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