|Botanical Name:||Brassica napus|
Bayer CropScience Inc.
Site 600, R.R. #6
P.O. Box 117
Stewart Brandt, Bayer CropScience Inc., Saskatoon, Saskatchewan
|Protective direction granted:||2011-07-19|
|Grant of Rights Date:||2015-02-10|
|Exemption from compulsory licensing:||Yes|
|Expiry date for exemption from compulsory licensing:||2017-02-10|
|Grant of Rights Termination Date:||2033-02-10|
Varieties used for comparison: 'PPS98-274', 'PPS02-364', '5030' and 'PR0CN446'
Summary: The petal of 'PR0CN427' is shorter and narrower than that of 'PR0CN446'. 'PR0CN427' has a longer petiole than 'PPS02-364'. The silique of 'PR0CN427' is shorter than 'PPS98-274'. The silique attitude of 'PR0CN427' is horizontal while it is semi-erect for 'PR0CN446'. 'PR0CN427' has a longer beak than '5030'. At maturity, the plant height of 'PR0CN427' is shorter than '5030'. 'PR0CN427' has a higher oil content as a percentage in whole dried seed than 'PPS98-274'. The protein content as a percentage of dried oil free meal of 'PR0CN427' is lower than the reference varieties.
PLANT: male fertile restorer inbred line, spring type, short to medium height at maturity
COTYLEDON: medium width, medium length
LEAF: medium green, medium number of lobes, sharp margin, medium density of medium depth dentations, short to medium length, medium to wide width, medium length petiole
FLOWER PETAL: yellow, short to medium length, narrow
SILIQUE: horizontal attitude, medium length, long beak, medium length pedicel
AGRONOMIC CHARACTERISTICS: fair to good resistance to lodging
QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 48.5% of whole dried seed, protein is 42.8% of dried oil free meal, very low glucosinolates (4.81 µmol/g)
DISEASE RESISTANCE: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)
Origin & Breeding History: 'PR0CN427' is a restorer line in the process of F1 hybrid production. It was derived as a doubled haploid line 07-355-132 containing the Rf3 gene construct in homozygous state. The cross was made in 2006 with the doubled haploid line being extracted in 2007. 'PR0CN427' 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 were conducted in the summers of 2010 and 2011 in Saskatoon, Saskatchewan. An additional trial in the summer of 2013 was conducted to confirm that the candidate varieties 'PR0CN427' and 'PR0CN446' were distinct from each other. Plots each year consisted of 3 rows with a row length of 6 metres and a row spacing of 50 cm. In 2010, the trial was set up as 8 x 9 lattice with 3 replications. In 2011 and 2013, the trials were set up as a RCBD with 3 replications. There were 40 measurements of the cotyledon characteristics, 30 measurements of the leaf, flower and plant height characteristics and 60 measurements for the silique characteristics. The means of 'PR0CN427' and the reference varieties are based on a two year average whereas the means of the candidate varieties 'PR0CN427' and 'PR0CN446' are based on a three year average. Differences on the two and three year averages are significant at the 2% and 5% probability level based on LSD values, respectively.
Comparison tables for 'PR0CN427' with reference varieties 'PPS98-274', 'PPS02-364', '5030' and 'PR0CN446'
Petiole length (mm)
Petal length (mm)
Petal width (mm)
Silique length (mm)
Beak length (mm)
Plant height at maturity (cm)
Oil content (% in whole dried seed)
Protein content (% of dried oil free meal)
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