Denomination: 'PA2CN156'
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: 2014-06-19
Application Number: 14-8359
Protective direction granted: 2014-06-19
Grant of Rights Date: 2016-05-25
Certificate Number: 5349
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: 'PA0CN116', 'PPS01-140 A-Line' and '5440'

Summary: Both the cotyledon and leaf of 'PA2CN156' are smaller than those of '5440'. 'PA2CN156' has a few leaf lobes whereas 'PA0CN116' has many lobes. 'PA2CN156' has a shorter petiole than 'PPS01-140 A-Line' and '5440'. The leaf margin of 'PA2CN156' is sharp whereas it is rounded for 'PPS01-140 A-Line' and '5440'. 'PA2CN156' flowers earlier than 'PA0CN116'. The petal of 'PA2CN156' is shorter than that of '5440'. The silique of 'PA2CN156' is shorter than that of 'PA0CN116'. 'PA2CN156' has a longer silique and beak than those of 'PPS01-140 A-Line'. The pedicel of 'PA2CN156' is shorter than that of '5440' whereas it is longer than that of 'PA0CN116' and 'PPS01-140 A-Line'. At maturity, the plant of 'PA2CN156' is taller than that of '5440'. 'PA2CN156' is later maturing than '5440'.


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

COTYLEDON: narrow to medium, short to medium length

LEAF: medium green, few lobes, sharp margin, medium density of medium depth margin dentations, very short to short, narrow, very short to short petiole

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

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

AGRONOMIC CHARACTERISTICS: fair resistance to lodging
QUALITY CHARACTERISTICS: 0.03% erucic acid, oil content is 48.5% of whole dried seed, protein is 44.7% of dried oil free meal, low glucosinolates (13.9 µmol/g)
DISEASE REACTION: moderately resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PA2CN156' is a male sterile line which contains the Ms8 gene construct in the heterozygous state. It was derived by backcrossing a pure selected line to a male sterile line used as the source of the bar and barnase genes. The pure selected line was backcrossed in 2003 in Saskatoon, Saskatchewan, Canada. The final backcross was made in 2011. 'PA2CN156' was selected in 2012 on the basis of male sterility stability, expression of tolerance to glufosinate-ammonium herbicide and good combining ability with numerous restorer lines. Other selection parameters included vigour, maturity, blackleg resistance, oil content, linolenic acid content, fatty acid profile and glucosinolate content.

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 'PA2CN156' with reference varieties 'PA0CN116', 'PPS01-140 A-Line' and '5440'

Cotyledon length (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=2.1) 11.0 10.5 10.7 13.9
std. deviation 1.3 0.8 0.9 1.3

Cotyledon width (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=2.7) 21.6 21.5 20.8 25.7
std. deviation 2.0 1.7 1.7 1.7

Leaf length (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=11) 176 178 179 216
std. deviation 11 10 8 12

Leaf width (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=6) 82 86 88 95
std. deviation 8 6 7 5

Petiole length (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=7) 61 69 70 85
std. deviation 11 6 8 6

Days to flower

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean 41 45 42 40

Flower petal length (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=0.7) 11.1 11.0 10.3 13.8
std. deviation 0.7 0.6 0.6 0.6

Silique length (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=2.5) 63.2 71.7 59.0 64.4
std. deviation 4.3 5.6 4.3 4.1

Beak length (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=1.2) 12.5 13.0 8.2 11.9
std. deviation 1.3 1.0 1.1 0.9

Pedicel length (mm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=1.6) 18.3 16.2 14.6 24.0
std. deviation 2.6 2.2 2.1 5.3

Days to maturity

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean 102 103 101 96

Plant height at maturity (cm)

  'PA2CN156' 'PA0CN116' 'PPS01-140 A-Line' '5440'
mean (LSD=4.2) 138 151 148 124
std. deviation 8 7 8 5

Click on image for larger view
Canola: 'PA2CN156' (far left) with reference varieties 'PPS01-140 A-Line' (centre left), 'PA0CN116' (centre right) and '5440' (far right)

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