Denomination: 'PB1CN231'
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: 2012-07-16
Application Number: 12-7675
Protective direction granted: 2012-07-16
Grant of Rights Date: 2014-05-27
Certificate Number: 4827
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2016-05-27
Grant of Rights Termination Date: 2032-05-27

Variety Description

Varieties used for comparison: 'PPS02-144 B-Line', 'PPS01-140 B-Line' and '5020'

Summary: The cotyledon of 'PB1CN231' is narrower than that of 'PPS02-144 B-Line’ and '5020’ and is shorter than that of 'PPS02-144 B-Line’. 'PB1CN231' has fewer leaf lobes than '5020'. 'PB1CN231' has a low density of margin dentation with shallow margins whereas 'PPS02-144 B-Line' and '5020’ have a medium density of margin dentation with medium depth margins. The leaf of 'PB1CN231' is shorter and narrower than that of '5020’. 'PB1CN231' has no petiole whereas the petiole is present for the reference varieties. 'PB1CN231' begins flowering later than 'PPS02-144 B-Line' and '5020'. The petal of 'PB1CN231' is shorter than that of 'PPS02-144 B-Line' and '5020’ and is narrower than that of the reference varieties. The silique of 'PB1CN231' is shorter than that of the reference varieties. The beak of 'PB1CN231' is shorter than that of 'PPS02-144 B-Line' and '5020' and is longer than that of 'PPS01-140 B-Line'. The pedicel of 'PB1CN231' is shorter than that of '5020'. At maturity, the plant of 'PB1CN231' is taller than that of 'PPS02-144 B-Line'. 'PB1CN231' matures later than 'PPS02-144 B-Line' and '5020’. The seed coat of 'PB1CN231' is a brown whereas it is black for the reference varieties.


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

COTYLEDON: medium width, long

LEAF: medium green, few to medium number of lobes, undulating margin, low density of shallow margin dentations, medium to long, medium to wide, petiole absent

FLOWER PETAL: yellow, medium length and width

SILIQUE: erect to semi-erect attitude, short, short to medium length beak and pedicel

SEED: brown

AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid is 0.03% of total fatty acids, oil content is 47.8% of whole dried seed, protein is 49.1% of dried oil free meal, very low glucosinolates (8.6 µmol/g)
DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PB1CN231’ is the male fertile maintainer line of 'PA1CN131’. It is a non-transgenic doubled haploid line which was extracted in 2008 from the F1 generation of a cross produced in Canada in 2007. 'PB1CN231’ 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 2011 and 2012 in Saskatoon, Saskatchewan were set up in a RCB Design with 3 replications per variety. Plots each year consisted of 3 rows with a row length of 6 metres and a row spacing of 50 cm. There were 40 measurements of the cotyledon characteristics, 30 measurements of the 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 'PB1CN231' with reference varieties 'PPS02-144 B-Line', 'PPS01-140 B-Line' and '5020'

Cotyledon width (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=1.6) 24.2 28.2 25.4 26.7
std. deviation 1.2 1.1 2.1 1.3

Cotyledon length (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=0.9) 14.0 15.8 13.9 14.8
std. deviation 0.5 0.6 0.9 0.9

Leaf length (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=11.4) 236 238 239 260
std. deviation 20 13 23 8

Leaf width (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=6.4) 120 117 113 132
std. deviation 9 11 10 8

Petiole length (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=7.7) N/A 116 131 130
std. deviation N/A 11 8 5

Days to flowering

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 41 38 41 38

Flower petal length (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=1.8) 13.6 16.9 14.1 16.1
std. deviation 0.2 0.5 0.3 0.7

Flower petal width (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=0.9) 6.2 8.0 6.8 7.1
std. deviation 0.2 0.3 0.2 0.9

Silique length (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=2.5) 54.1 70.6 57.9 69.7
std. deviation 1.1 1.3 0.8 3.8

Beak length (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=0.5) 9.3 14.9 6.6 14.4
std. deviation 0.3 0.9 0.4 0.8

Pedicel length (mm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=2.1) 19.5 20.8 19.5 21.3
std. deviation 2.4 1.0 2.5 0.9

Days to maturity

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 93 89 93 89

Plant height (cm)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=5.5) 113 104 123 107
std. deviation 7 1 4 8

Oil content (% in whole dried seed)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 47.8 45.8 45.7 46.9

Protein content (% of dried oil free meal)

  'PB1CN231' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 49.1 51.6 49.7 48.3

Click on image for larger view
Canola: 'PB1CN231' (far left) with reference varieties 'PPS02-144 B-Line' (centre left), 'PPS01-140 B-Line' (centre right) and '5020' (far right)

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