Denomination: 'PB1CN237'
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: 12-7677
Protective direction granted: 2012-07-16
Grant of Rights Date: 2014-05-27
Certificate Number: 4829
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2016-05-27
Date rights surrendered: 2015-02-11

Variety Description

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

Summary: The cotyledon of 'PB1CN237' is wider than that of 'PPS01-140 B-Line’. 'PB1CN237' has fewer leaf lobes than '5020'. The leaf of 'PB1CN237' has a low to medium density of margin dentation with shallow to medium depth 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 'PB1CN237' is shorter and narrower than that of '5020'. 'PB1CN237' has a shorter petiole than 'PPS01-140 B-Line' and '5020'. The petal of 'PB1CN237' is shorter than that of 'PPS02-144 B-Line' and longer than that of 'PPS01-140 B-Line'. The petal of 'PB1CN237' is wider than that of 'PPS01-140 B-Line' and '5020'. The silique of 'PB1CN237' is longer than that of 'PPS01-140 B-Line'. The beak of 'PB1CN237' is shorter than that of 'PPS02-144 B-Line' and '5020' and is longer than that of 'PPS01-140 B-Line'. At maturity, the plant of 'PB1CN237' is taller than that of 'PPS02-144 B-Line'. 'PB1CN237' matures later than 'PPS02-144 B-Line' and '5020'.


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

COTYLEDON: wide to very wide, long

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

FLOWER PETAL: yellow, medium length, medium to wide

SILIQUE: horizontal attitude, long to very long, long beak, short to medium length pedicel

SEED: black

AGRONOMIC CHARACTERISTICS: poor to fair resistance to lodging
QUALITY CHARACTERISTICS: erucic acid is 0.06% of total fatty acids, oil content is 44.0% of whole dried seed, protein is 50.4% of dried oil free meal, low glucosinolates (11.7 µmol/g)
DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PB1CN237’ is the male fertile maintainer line of 'PA1CN137’. It is a non-transgenic doubled haploid line that was extracted in 2010 from the F1 generation of a cross produced in Canada in 2010. 'PB1CN237’ was selected in 2010 and 2011 on the basis of per se performance of height, vigour, maturity, blackleg resistance, sclerotinia tolerance, 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 'PB1CN237' with reference varieties 'PPS02-144 B-Line', 'PPS01-140 B-Line' and '5020'

Cotyledon width (mm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=1.6) 29.0 28.2 25.4 26.7
std. deviation 2.7 1.1 2.1 1.3

Leaf length (mm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=11.4) 237 238 239 260
std. deviation 16 13 23 8

Leaf width (mm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=6.4) 112 117 113 132
std. deviation 10 11 10 8

Petiole length (mm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=7.7) 114 116 131 130
std. deviation 8 11 8 5

Flower petal length (mm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=1.8) 16.3 16.9 14.1 16.1
std. deviation 0.3 0.5 0.3 0.7

Flower petal width (mm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=0.9) 8.0 8.0 6.8 7.1
std. deviation 0.3 0.3 0.2 0.9

Silique length (mm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=2.5) 71.6 70.6 57.9 69.7
std. deviation 4.3 1.3 0.8 3.8

Beak length (mm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=0.5) 13.7 14.9 6.6 14.4
std. deviation 0.9 0.9 0.4 0.8

Days to maturity

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 94 89 93 89

Plant height (cm)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean (LSD=5.5) 115 104 123 107
std. deviation 5 1 4 8

Oil content (% in whole dried seed)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 44.0 45.8 45.7 46.9

Protein content (% of dried oil free meal)

  'PB1CN237' 'PPS02-144 B-Line' 'PPS01-140 B-Line' '5020'
mean 50.4 51.6 49.7 48.3

Click on image for larger view
Canola: 'PB1CN237' (far left) with reference varieties 'PPS02-144 B-Line' (centre left), 'PPS01-140 B-Line' (centre right) and '5020' (far right)

Date modified: