Denomination: 'PR0CN478'
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: 12-7681
Protective direction granted: 2012-07-16
Grant of Rights Date: 2014-05-27
Certificate Number: 4833
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: 'PPS98-274', 'PPS02-364' and '5030'

Summary: The cotyledon of 'PR0CN478' is narrower and shorter than that of '5030'. The leaf blade of 'PR0CN478' is dark green whereas it is medium green for the reference varieties. 'PR0CN478' has fewer leaf lobes than 'PPS98-274' and '5030'. The leaf of 'PR0CN478' is longer than that of 'PPS02-364' and shorter than that of '5030'. The leaf of 'PR0CN478' is narrower than that of the reference varieties. 'PR0CN478' has a longer petiole than 'PPS02-364' whereas the petiole is shorter than '5030'. 'PR0CN478' flowers later than 'PPS02-364'. The petal of 'PR0CN478' is shorter than that of 'PPS02-364' and wider than that of the reference varieties. The silique, beak and pedicel of 'PR0CN478' are shorter than those of the reference varieties. At maturity, the plant of 'PR0CN478' is shorter than that of 'PPS98-274' and '5030'. 'PR0CN478' matures later than the reference varieties.


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

COTYLEDON: medium width, medium to long

LEAF: dark green, medium to many lobes, sharp margin, medium to dense density of medium depth margin dentations, medium to long, narrow to medium width, medium to long petiole

FLOWER PETAL: yellow, medium length and width

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

SEED: black

AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 44.8% of whole dried seed, protein is 48.3% of dried oil free meal, low glucosinolates (10.7 µmol/g)
DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PR0CN478’ 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 and good combining ability with numerous male sterile lines. Other selection parameters included 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 'PR0CN478' with reference varieties 'PPS98-274', 'PPS02-364' and '5030'

Cotyledon width (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.4) 23.8 22.7 25.0 25.7
std. deviation 0.8 1.8 1.8 0.9

Cotyledon length (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.2) 12.9 13.6 14.3 14.7
std. deviation 0.5 1.3 1.5 0.6

Leaf length (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=9.4) 229 238 203 259
std. deviation 13 20 17 10

Leaf width (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=4.3) 99 116 105 123
std. deviation 5 5 10 11

Petiole length (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=5.9) 121 118 94 138
std. deviation 11 7 9 13

Days to flowering

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean 43 42 40 42

Flower petal length (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.4) 15.4 15.3 14.5 14.9
std. deviation 0.7 0.4 0.5 0.6

Flower petal width (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.5) 7.5 5.1 5.1 6.0
std. deviation 0.5 0.2 0.3 0.5

Silique length (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=2.0) 51.7 71.3 66.3 67.5
std. deviation 1.6 2.3 3.9 2.0

Beak length (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.6) 9.3 12.5 13.1 10.9
std. deviation 0.8 0.6 0.9 0.9

Pedicel length (mm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.3) 22.7 29.6 25.9 27.6
std. deviation 2.3 1.0 0.7 1.2

Days to maturity

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean 97 91 92 92

Plant height (cm)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=3.6) 105 124 106 132
std. deviation 4 2 6 2

Oil content (% in whole dried seed)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean 44.8 45.3 46.9 44.4

Protein content (% of dried oil free meal)

  'PR0CN478' 'PPS98-274' 'PPS02-364' '5030'
mean 48.3 49.0 49.9 48.9

Click on image for larger view
Canola: 'PR0CN478' (far left) with reference varieties 'PPS98-274' (centre left), 'PPS02-364' (centre right) and '5030' (far right)

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