Denomination: 'PR0CN451'
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: 2011-07-19
Application Number: 11-7337
Protective direction granted: 2011-07-19
Grant of Rights Date: 2013-06-21
Certificate Number: 4561
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2015-06-21
Date rights surrendered: 2015-02-11

Variety Description

Varieties used for comparison: 'PPS98-274', 'PPS02-364' and '5030'

Summary: 'PR0CN451' has a longer leaf than 'PPS02-364'. The petiole of 'PR0CN451' is longer than 'PPS98-274' and 'PPS02-364'. 'PR0CN451' flowers later than the reference varieties. The silique of 'PR0CN451' is shorter than 'PPS98-274'. 'PR0CN451' has a longer beak than '5030'. At maturity, the plant height of 'PR0CN451' is taller than 'PPS98-274' and 'PPS02-364'. 'PR0CN451' has a lower protein content as a percentage of dried oil free meal than 'PPS98-274' and 'PPS02-364'.


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

COTYLEDON: wide, long

LEAF: light to medium green, medium number of lobes, rounded margin, low density of shallow dentations, long, medium to wide width, long petiole

FLOWER PETAL: yellow, medium to long length, medium to wide width
SILIQUE: semi-erect to horizontal attitude, medium to long length, medium to long beak, medium length pedicel
SEED: black

AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging

QUALITY CHARACTERISTICS: erucic acid is 0.04% of total fatty acids, oil content is 47.8% of whole dried seed, protein is 45.2% of dried oil free meal, very low glucosinolates (7.43 µmol/g)

DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam) and resistant to White Mold (Sclerotinia sclerotiorum)

Origin & Breeding History: 'PR0CN451' is a restorer line in the process of F1 hybrid production. It was derived as a doubled haploid line 08CN11-002 containing the Rf3 gene construct in homozygous state. The cross was made in 2007 with the doubled haploid line being extracted in 2008. 'PR0CN451' was selected in 2009 on the basis of fertility restoration of numerous male sterile lines and expression of tolerance to glufosinate-ammonium herbicide. Other selection parameters included height, vigour, maturity, blackleg resistance, oil content, fatty acid profile, glucosinolate content and combining ability.

Tests & Trials: Trials were conducted in the summers of 2010 and 2011 in Saskatoon, Saskatchewan. Plots each year consisted of 3 rows with a row length of 6 metres and a row spacing of 50cm. In 2010, the trial was set up as 8 x 9 lattice with 3 replications. In 2011, the trial was set up as a RCB Design with 3 replications. There were 40 measurements of the cotyledon characteristics, 30 of the leaf, flower and plant height characteristics and 60 for 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 'PR0CN451' with reference varieties 'PPS98-274', 'PPS02-364' and '5030'

Leaf length (mm)

  'PR0CN451' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=53) 232 203 176 226
std. deviation 38 27 19 29

Petiole length (mm)

  'PR0CN451' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=23) 123 96 81 117
std. deviation 28 16 13 21

Days to flowering

  'PR0CN451' 'PPS98-274' 'PPS02-364' '5030'
mean 46 43 40 42

Silique length (mm)

  'PR0CN451' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=4.2) 61.4 66.2 62.4 60.3
std. deviation 6.5 5.6 5.6 4.9

Beak length (mm)

  'PR0CN451' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=2.6) 12.3 12.7 12.7 9.4
std. deviation 1.4 1.9 1.6 1.8

Plant height at maturity (cm)

  'PR0CN451' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=7) 134 118 105 128
std. deviation 10 8 9 11

Protein content (% of dried oil free meal)

  'PR0CN451' 'PPS98-274' 'PPS02-364' '5030'
mean 45.2 49.2 47.9 45.7

Click on image for larger view
Canola: 'PR0CN451' (far left) with reference varieties 'PPS98-274' (centre left), 'PPS02-364' (centre right) and '5030' (far right)

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