Denomination: 'PB1CN232'
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: 12-7676
Protective direction granted: 2012-07-16
Grant of Rights Date: 2014-05-27
Certificate Number: 4828
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 'PB1CN232' is narrower than that of the reference varieties and shorter than that of 'PPS02-144 B-Line’. 'PB1CN232' has more leaf lobes than 'PPS02-144 B-Line' and 'PPS01-140 B-Line'. The leaf of 'PB1CN232' has a medium to dense density of margin dentation with medium to deep margins whereas the leaf of 'PPS01-140 B-Line' has a very low to low density of margin dentation with very shallow to shallow margins. The leaf of 'PB1CN232' is longer and wider than that of 'PPS02-144 B-Line' and 'PPS01-140 B-Line'. 'PB1CN232' has a longer petiole than the reference varieties. 'PB1CN232' begins flowering later than 'PPS02-144 B-Line' and '5020'. The petal of 'PB1CN232' is shorter than that of 'PPS02-144 B-Line' and '5020’ and is narrower than that of the reference varieties. The silique of 'PB1CN232' is shorter than that of the reference varieties. The beak of 'PB1CN232' is shorter than that of 'PPS02-144 B-Line' and '5020' and is longer than that of 'PPS01-140 B-Line'. The pedicel of 'PB1CN232' is longer than that of 'PPS01-140 B-Line'. At maturity, the plant of 'PB1CN232' is taller than that of 'PPS02-144 B-Line' and '5020’. 'PB1CN232' matures later than the reference varieties. The seed coat of 'PB1CN232' is brown whereas it is black for the reference varieties.


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

COTYLEDON: medium width, medium to long

LEAF: medium green, many lobes, sharp margin, dense density of medium to deep margin dentations, long to very long, medium to wide, long to very long petiole

FLOWER PETAL: yellow, medium length and width

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

SEED: brown

AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 50.0% of whole dried seed, protein is 50.2% of dried oil free meal, very low glucosinolates (9.6 µmol/g)
DISEASE RESISTANCE: moderately resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PB1CN232’ is the male fertile maintainer line of 'PA1CN132’. 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. 'PB1CN232’ 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 'PB1CN232' with reference varieties 'PPS02-144 B-Line', 'PPS01-140 B-Line' and '5020'

Cotyledon width (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=1.6) 23.7 28.2 25.4 26.7
std. deviation 1.2 1.1 2.1 1.3

Cotyledon length (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=0.9) 13.6 15.8 13.9 14.8
std. deviation 0.8 0.6 0.9 0.9

Leaf length (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=11.4) 264 238 239 260
std. deviation 12 13 23 8

Leaf width (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=6.4) 130 117 113 132
std. deviation 7 11 10 8

Petiole length (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=7.7) 148 116 131 130
std. deviation 10 11 8 5

Days to flowering

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 41 38 41 38

Flower petal length (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=1.8) 14.1 16.9 14.1 16.1
std. deviation 0.3 0.5 0.3 0.7

Flower petal width (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=0.9) 5.9 8.0 6.8 7.1
std. deviation 0.3 0.3 0.2 0.9

Silique length (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=2.5) 52.9 70.6 57.9 69.7
std. deviation 1.4 1.3 0.8 3.8

Beak length (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=0.5) 10.7 14.9 6.6 14.4
std. deviation 0.5 0.9 0.4 0.8

Pedicel length (mm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=2.1) 21.3 20.8 19.5 21.3
std. deviation 0.8 1.0 2.5 0.9

Days to maturity

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 96 89 93 89

Plant height (cm)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=5.5) 120 104 123 107
std. deviation 4 1 4 8

Oil content (% in whole dried seed)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 50.0 45.8 45.7 46.9

Protein content (% of dried oil free meal)

  'PB1CN232' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 50.2 51.6 49.7 48.3

Click on image for larger view
Canola: 'PB1CN232' (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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