Denomination: 'PR1CN482'
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: 12-7683
Protective direction granted: 2012-07-16
Grant of Rights Date: 2014-05-27
Certificate Number: 4835
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: 'PPS98-274', 'PPS02-364' and '5030'

Summary: The cotyledon of 'PR1CN482' is narrower than that of '5030'. 'PR1CN482' has fewer leaf lobes than 'PPS98-274' and '5030'. The leaf of 'PR1CN482' has shallow to medium depth margins whereas the leaf of 'PPS98-274' has medium to deep margins. The leaf of 'PR1CN482' is shorter than that of '5030' and longer than that of 'PPS02-364'. The leaf of 'PR1CN482' is narrower than that of 'PPS98-274' and '5030'. 'PR1CN482' has a longer petiole than 'PPS98-274' and 'PPS02-364' whereas the petiole is shorter than '5030'. 'PR1CN482' flowers later than 'PPS02-364'. The petal of 'PR1CN482' is shorter than that of the reference varieties and wider than that of 'PPS98-274' and 'PPS02-364'. The silique of 'PR1CN482' is shorter than that of the reference varieties. 'PR1CN482' has a shorter beak than 'PPS98-274' and 'PPS02-364'. The pedicel of 'PR1CN482' is shorter than that of 'PPS98-274' and '5030'. At maturity, the plant of 'PR1CN482' is shorter than that of 'PPS98-274' and '5030'. 'PR1CN482' matures later than the reference varieties.


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

COTYLEDON: medium width, long

LEAF: medium green, medium to many lobes, rounded margin, medium density of shallow to medium depth margin dentations, long, medium width, medium to long petiole

FLOWER PETAL: yellow, medium length and width

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

SEED: black

AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging and shattering

QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 47.7% of whole dried seed, protein is 46.8% of dried oil free meal, very low glucosinolates (7.2 µmol/g)
REACTION TO CHEMICAL: resistant to Glufosinate ammonium
DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PR1CN482’ is a restorer inbred line used in F1 hybrid production. It was produced in Canada in 2009 and was selected in 2010 on the basis of fertility restoration, good combining ability with numerous male sterile lines and expression of tolerance to glufosinate-ammonium herbicide. Other selection parameters included height, vigour, maturity, blackleg resistance, increased tolerance to seed pod shattering, 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 'PR1CN482' with reference varieties 'PPS98-274', 'PPS02-364' and '5030'

Cotyledon width (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.4) 24.1 22.7 25.0 25.7
std. deviation 0.7 1.8 1.8 0.9

Leaf length (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=9.4) 239 238 203 259
std. deviation 16 20 17 10

Leaf width (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=4.3) 101 116 105 123
std. deviation 8 5 10 11

Petiole length (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=5.9) 125 118 94 138
std. deviation 12 7 9 13

Days to flowering

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean 42 42 40 42

Flower petal length (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.4) 13.3 15.3 14.5 14.9
std. deviation 0.1 0.4 0.5 0.6

Flower petal width (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.5) 6.1 5.1 5.1 6.0
std. deviation 0.3 0.2 0.3 0.5

Silique length (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=2.0) 56.4 71.3 66.3 67.5
std. deviation 1.7 2.3 3.9 2.0

Beak length (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.6) 10.2 12.5 13.1 10.9
std. deviation 0.1 0.6 0.9 0.9

Pedicel length (mm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.3) 25.5 29.6 25.9 27.6
std. deviation 1.3 1.0 0.7 1.2

Days to maturity

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean 94 91 92 92

Plant height (cm)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=3.6) 110 124 106 132
std. deviation 1 2 6 2

Oil content (% in whole dried seed)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean 47.7 45.3 46.9 44.4

Protein content (% of dried oil free meal)

  'PR1CN482' 'PPS98-274' 'PPS02-364' '5030'
mean 46.8 49.0 49.9 48.9

Click on image for larger view
Canola: 'PR1CN482' (far left) with reference varieties 'PPS98-274' (centre left), 'PPS02-364' (centre right) and '5030' (far right)

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