PR3CN560

Canola

Denomination: 'PR3CN560'
Botanical Name: Brassica napus
Applicant/Holder: Bayer CropScience Inc.
Site 600, R.R. #6
P.O. Box 117
Saskatoon, Saskatchewan
S7K 3J9
Canada
Breeder: Stewart Brandt, Bayer CropScience Inc., Saskatoon, Saskatchewan
Application Date: 2014-06-19
Application Number: 14-8370
Protective direction granted: 2014-06-19
Grant of Rights Date: 2016-05-25
Certificate Number: 5358
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2018-05-25
Grant of Rights Termination Date: 2036-05-25

Note: The applicant has requested an exemption from compulsory licensing to allow time to multiply and distribute propagating material of the variety. If the exemption is granted, it may be allowed for two years from the date rights are granted for the variety.


Variety Description

Varieties used for comparison: 'PPS98-274', 'PPS02-364' and '5440'

Summary: The cotyledon of 'PR3CN560' is wider than that of 'PPS98-274'. The leaf of 'PR2CN560' has a medium number of lobes whereas that of 'PPS02-364' has a few lobes. The leaf of 'PR3CN560' has an undulating to rounded margin whereas the margin is sharp for 'PPS98-274' and 'PPS02-364'. The leaf of 'PR3CN560' is longer than that of 'PPS02-364' and is narrower than that of '5440'. 'PR3CN560' has a longer petiole than 'PPS98-274' and 'PPS02-364'. 'PR3CN560' flowers later than the reference varieties. The silique, beak and pedicel of 'PR3CN560' are longer than those of '5440'. 'PR3CN560' has a longer pedicel than 'PPS02-364'. At maturity, the plant of 'PR3CN560' is taller than that of 'PPS02-364'. 'PR3CN560' is later maturing than 'PPS02-364' and '5440'.

Description:

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

COTYLEDON: medium to wide, medium to long

LEAF: medium green, medium number of lobes, undulating to rounded margin, medium density of medium depth margin dentations, medium length, narrow to medium width, short to medium length petiole

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

SILIQUE: horizontal to semi-drooping attitude, long to very long, medium to long beak, medium length pedicel
SEED COAT: black

AGRONOMIC CHARACTERISTICS: good resistance to lodging
QUALITY CHARACTERISTICS: 0.02% erucic acid, oil content is 50.3% of whole dried seed, protein is 42.2% of dried oil free meal, very low glucosinolates (8.7 µmol/g)
CHEMICAL REACTION: resistant to glufosinate ammonium herbicides
DISEASE REACTION: moderately resistant to resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PR3CN560' is a restorer line in the process of F1 hybrid production. It was derived as a doubled haploid line containing the Rf3 gene construct in homozygous state. The cross was made in Canada in 2006 with the doubled haploid line being extracted in 2008. 'PR3CN560' was selected in 2012 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: The comparative trials conducted during the summers of 2013 and 2014 in Saskatoon, Saskatchewan were set up in a RCB Design with 3 replications per variety. Each year, the plots consisted of 3 rows that were 6 metres in length with a spacing of 25 cm between rows and 50 cm between plots. The measured characteristics were based on 30 measurements of the cotyledon, leaf, flower and plant height and 60 measurements of the silique. The means were based on a two year average. Mean differences were significant at the 2% probability level based on LSD values.


Comparison tables for 'PR3CN560' with reference varieties 'PPS98-274', 'PPS02-364' and '5440'

Cotyledon width (mm)

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean (LSD=3.7) 25.0 22.3 22.4 26.2
std. deviation 1.9 1.5 1.6 1.9

Leaf length (mm)

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean (LSD=13) 222 205 169 232
std. deviation 19 17 12 12

Leaf width (mm)

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean (LSD=6) 91 98 85 104
std. deviation 8 10 7 8

Petiole length (mm)

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean (LSD=7) 94 67 56 86
std. deviation 8 10 8 9

Days to flower

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean 44 41 38 40

Silique length (mm)

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean (LSD=2.4) 72.3 74.8 67.9 66.3
std. deviation 7.4 4.7 5.0 3.8

Beak length (mm)

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean (LSD=0.7) 14.3 13.2 14.3 11.8
std. deviation 1.2 1.3 1.2 1.3

Pedicel length (mm)

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean (LSD=2.2) 28.2 26.6 22.7 25.0
std. deviation 6.2 4.1 4.9 6.4

Days to maturity

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean 98 96 95 95

Plant height at maturity (cm)

  'PR3CN560' 'PPS98-274' 'PPS02-364' '5440'
mean (LSD=5.8) 121 128 109 126
std. deviation 5 6 6 6

Click on image for larger view
PR3CN560
Canola: 'PR3CN560' (far left) with reference varieties 'PPS02-364' (centre left), 'PPS98-274' (centre right) and '5440' (far right)

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