Denomination: 'PR5CN614'
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: 2016-07-04
Application Number: 16-8953

Variety Description

Varieties used for comparison: 'PPS02-364', 'PPS04-205' and '5440'

Summary: The cotyledon of 'PR5CN614' is narrower than that of '5440' and it is shorter than that of the reference varieties. The leaf of 'PR5CN614' is shorter than that of '5440'. The petal of 'PR5CN614' is longer and narrower than that of 'PPS04-205'. The silique and pedicel of 'PR5CN614' are longer than those of the reference varieties. 'PR5CN614' has a longer beak than 'PPS04-205' and '5440'. 'PR5CN614' matures earlier than 'PPS02-364' and 'PPS04-205'. At maturity, the plant of 'PR5CN614' is taller than that of 'PPS04-205' and it is shorter than that of '5440'.


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

COTYLEDON: medium length, narrow to medium width

LEAF: medium green, medium to many lobes, rounded margin, medium density of medium depth margin indentations, short to medium length, narrow to medium width, short to medium length petiole

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

SILIQUE: horizontal attitude, long, medium to long beak, short to medium length pedicel
SEED COAT: black

AGRONOMIC CHARACTERISTICS: medium resistance to lodging
QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 43.6% of whole dried seed, protein is 40.2% of dried oil free meal, low glucosinolates (10.7 µmol/g)
HERBICIDE REACTION: resistant to glufosinate ammonium herbicides
DISEASE REACTION: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PR5CN614' is a restorer line in the process of F1 hybrid production. It was derived as a double haploid line containing the Rf3 gene in homozygous state. The cross was made at Bayer CropScience in Saskatoon, Saskatchewan, Canada in 2010 with the doubled haploid line being extracted in 2011. 'PR5CN614' was selected in 2015 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 for 'PR5CN614' conducted during the summers of 2015 and 2016 in Saskatoon, Saskatchewan. They 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 'PR5CN614' with reference varieties 'PPS02-364', 'PPS04-205' and '5440'

Cotyledon length (mm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=0.4) 12.2 13.8 13.2 14.4
std. deviation 1.1 1.9 1.6 2.3

Cotyledon width (mm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=0.7) 21.1 21.9 22.3 24.4
std. deviation 2.2 1.9 1.9 1.7

Leaf length (cm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=1.1) 20.3 18.5 22.0 22.5
std. deviation 3.1 2.3 2.5 3.2

Flower petal length (mm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=0.6) 15.7 16.0 13.4 15.0
std. deviation 1.4 1.5 1.0 1.5

Flower petal width (mm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=0.4) 6.4 6.8 7.5 7.0
std. deviation 1.2 0.7 0.9 0.9

Silique length (mm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=1.7) 71.8 59.2 51.9 56.5
std. deviation 5.7 4.0 5.4 5.9

Beak length (mm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=0.8) 13.5 12.8 10.8 10.4
std. deviation 6.0 1.9 1.4 1.7

Pedicel length (mm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=1.0) 21.3 17.4 16.9 18.6
std. deviation 2.8 2.7 2.0 2.3

Days to maturity

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean 93 96 96 94

Plant height at maturity (cm)

  'PR5CN614' 'PPS02-364' 'PPS04-205' '5440'
mean (LSD=3.8) 136 131 129 150
std. deviation 8 6 7 10

Click on image for larger view
Canola: 'PR5CN614' (far left) with reference varieties 'PPS02-364' (centre left), 'PPS04-205' (centre right) and '5440' (far right)

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