Denomination: 'PR0CN432'
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: 12-7678
Protective direction granted: 2012-07-16
Grant of Rights Date: 2014-05-27
Certificate Number: 4830
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: 'PR0CN432' has fewer leaf lobes than 'PPS98-274' and '5030'. The leaf margins of 'PR0CN432' have a low to medium density of dentation with shallow to medium depth whereas those of 'PPS98-274' have medium to dense margin dentation which are medium to deep. The leaf of 'PR0CN432' is longer than that of 'PPS98-274' and 'PPS02-364' and is shorter than that of '5030'. The leaf of 'PR0CN432' is narrower than that of 'PPS98-274' and '5030'. The petiole of 'PR0CN432' is longer than that of 'PPS98-274' and 'PPS02-364' and is shorter than that of '5030'. 'PR0CN432' flowers later than 'PPS02-364'. The petal of 'PR0CN432' is shorter than that of 'PPS98-274' and narrower than that of '5030'. The silique of 'PR0CN432' is shorter than that of the reference varieties. 'PR0CN432' has a shorter beak than 'PPS02-364'. The pedicel of 'PR0CN432' is shorter than that of 'PPS98-274' and '5030'. At maturity, the plant of 'PR0CN432' is taller than that of 'PPS02-364' and shorter than that of 'PPS98-274' and '5030'.


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

COTYLEDON: medium to wide, long

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

FLOWER PETAL: yellow, medium length, narrow to medium width

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

SEED: black

AGRONOMIC CHARACTERISTICS: good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid is 0.03% of total fatty acids, oil content is 46.8% of whole dried seed, protein is 46.3% of dried oil free meal, very low glucosinolates (6.1 µmol/g)
DISEASE RESISTANCE: moderately resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PR0CN432’ is a restorer inbred line used in F1 hybrid production which contains the Rf3 gene construct in the homozygous state. It was produced in Canada in 2006 with the doubled haploid line being extracted in 2007. 'PR0CN432’ was selected in 2008 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 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 'PR0CN432' with reference varieties 'PPS98-274', 'PPS02-364' and '5030'

Leaf length (mm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=9.4) 251 238 203 259
std. deviation 12 20 17 10

Leaf width (mm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=4.3) 107 116 105 123
std. deviation 7 5 10 11

Petiole length (mm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=5.9) 128 118 94 138
std. deviation 5 7 9 13

Days to flowering

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean 42 42 40 42

Flower petal length (mm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.4) 14.4 15.3 14.5 14.9
std. deviation 0.7 0.4 0.5 0.6

Flower petal width (mm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.5) 5.3 5.1 5.1 6.0
std. deviation 0.6 0.2 0.3 0.5

Silique length (mm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=2.0) 60.0 71.3 66.3 67.5
std. deviation 2.8 2.3 3.9 2.0

Beak length (mm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.6) 11.9 12.5 13.1 10.9
std. deviation 0.6 0.6 0.9 0.9

Pedicel length (mm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.3) 25.4 29.6 25.9 27.6
std. deviation 1.0 1.0 0.7 1.2

Plant height (cm)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=3.6) 115 124 106 132
std. deviation 4 2 6 2

Oil content (% in whole dried seed)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean 46.8 45.3 46.9 44.4

Protein content (% of dried oil free meal)

  'PR0CN432' 'PPS98-274' 'PPS02-364' '5030'
mean 46.3 49.0 49.9 48.9

Click on image for larger view
Canola: 'PR0CN432' (far left) with reference varieties 'PPS98-274' (centre left), 'PPS02-364' (centre right) and '5030' (far right)

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