PR9CN409

Canola

Denomination: 'PR9CN409'
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: 14-8373
Protective direction granted: 2014-06-19
Grant of Rights Date: 2016-05-25
Certificate Number: 5361
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 '5030'

Summary: The leaf and petiole of 'PR9CN409' are longer than those of 'PPS02-364'. 'PR9CN409' flowers later than 'PPS02-364'. The petal of 'PR9CN409' is longer than that of '5030' and is wider than that of the reference varieties. The silique of 'PR9CN409' is shorter than that of 'PPS98-274'. 'PR9CN409' has a shorter silique beak than the reference varieties. 'PR9CN409' has a longer pedicel than 'PPS02-364' and '5030'. At maturity, the plant of 'PR9CN409' is taller than 'PPS02-364'.

Description:

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

COTYLEDON: medium width, medium to long

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

FLOWER PETAL: yellow, medium length, medium to wide

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

AGRONOMIC CHARACTERISTICS: good resistance to lodging
QUALITY CHARACTERISTICS: no erucic acid, oil content is 47.6% of whole dried seed, protein is 41.4% of dried oil free meal, very low glucosinolates (9.9 µmol/g)
CHEMICAL REACTION: resistant to glufosinate ammonium herbicides
DISEASE REACTION: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PR9CN409' 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 2007. 'PR9CN409' 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: The comparative trials conducted during the summers of 2009 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 'PR9CN409' with reference varieties 'PPS98-274', 'PPS02-364' and '5030'

Leaf length (mm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=2.6) 208 207 181 205
std. deviation 19 31 17 26

Leaf width (mm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=12) 92 104 92 104
std. deviation 12 17 12 13

Petiole length (mm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=11) 86 82 69 94
std. deviation 11 12 11 13

Days to flower

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean 44 45 41 43

Flower petal length (mm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.8) 15.9 15.5 15.1 15.1
std. deviation 0.9 0.8 0.8 1.0

Flower petal width (mm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.5) 8.5 6.5 6.5 7.0
std. deviation 0.6 0.6 0.6 0.7

Silique length (mm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=2.2) 63.1 70.5 66.2 65.5
std. deviation 5.5 5.7 5.9 7.1

Beak length (mm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=0.6) 8.4 13.6 13.9 10.9
std. deviation 1.5 1.7 2.0 1.7

Pedicel length (mm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=1.8) 25.0 24.7 19.5 21.8
std. deviation 4.1 3.9 3.3 4.2

Plant height at maturity (cm)

  'PR9CN409' 'PPS98-274' 'PPS02-364' '5030'
mean (LSD=7.9) 135 141 123 141
std. deviation 9 11 9 10

Click on image for larger view
PR9CN409
Canola: 'PR9CN409' (left) with reference varieties 'PPS98-274' (centre left), 'PPS02-364' (centre right) and '5030' (right)

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