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PB8CN253

Canola

Denomination: 'PB8CN253'
Botanical Name: Brassica napus
Applicant/Holder: BASF Agricultural Solutions Seed US LLC
100 Park Avenue
Florham Park, New Jersey
07932
United States of America
Breeder: Jeffrey Mansiere, BASF Canada Inc., Saskatoon, Saskatchewan
Agent in Canada: BASF Canada Inc.
Site 600, Box 117 RR#6
Saskatoon, Saskatchewan
S7K 3J9
Canada
Tel: 306-371-6226
Application Date: 2020-07-17
Provisional Protection:: 2020-07-17
Application Number: 20-10303
Grant of Rights Date: 2024-02-12
Certificate Number: 7008
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2026-02-12
Grant of Rights Termination Date: 2044-02-12

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: 'PB1CN231', 'PPS01-140 B-Line' and '5440'

Summary: TThe cotyledon of 'PB8CN253' is wider than the cotyledon of 'PB1CN231' and longer and wider than that of 'PPS01-140 B-Line'. The petal of 'PB8CN253'is shorter and narrower than that of '5440'. The silique of 'PB8CN253' is longer than that of 'PB1CN231'. The silique of 'PB8CN253' has a longer beak than that of'PPS01-140 B-Line'. The plants of 'PB8CN253' mature earlier than the plants of 'PB1CN231' and '5440'. At maturity, the plants of 'PB8CN253' are shorter than the plants of '5440'. The seed coat of 'PB8CN253' is black whereas it is brown for 'PB1CN231'.

Description:

PLANT: male fertile inbred line, spring type, medium height at maturity

COTYLEDON: medium to long, wide

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

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

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

AGRONOMIC CHARACTERISTICS: medium resistance to lodging, good resistance to shattering

QUALITY CHARACTERISTICS: erucic acid is 0.03% of total fatty acids, oil content is 47.9% of whole dried seed, protein is 44.9% of dried oil free meal, low concentration of glucosinolates (10.1 µmol/g)

CHEMICAL REACTION: susceptible to glufosinate ammonium herbicides

DISEASE REACTIONS: moderately resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam); tolerant to Clubroot (Plasmodiophora brassicae)

Origin & Breeding History: 'PB8CN253' is the male fertile maintainer line of 'PA8CN153'. It is a non-transgenic selected line which was derived by crossing an inbred line containing the Ms8 gene to a donor line, which was then used as a recurring parent in a backcrossing scheme. The initial cross and subsequent backcross were conducted in Gent, Belgium in 2016 and 2017, respectively. 'PB8CN253' was selected in 2017 on the basis of per se performance, expression of tolerance to glyphosate herbicide, vigour, maturity, blackleg resistance, clubroot tolerance, seed pod shattering resistance, oil content, fatty acid profile and glucosinolate content. Breeder seed production commenced in Saskatoon, Saskatchewan, Canada in 2017.

Tests & Trials: The comparative trials for 'PB8CN253' were conducted during the 2019 and 2021 growing seasons in Saskatoon, Saskatchewan. Trials were arranged in a RCB design with 3 replications per variety. The plots consisted of 3 rows that were 6 metres in length with spacing of 25 cm between rows and 50 cm between plots. The planting density resulted in a total of approximately 1300 plants per variety per year. The measured characteristics were based on 30 measurements except for the silique characteristics which were based on 60 measurements. 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 'PB8CN253' with reference varieties 'PB1CN231', 'PPS01-140 B-Line' and '5440'

Cotyledon length (mm)

  'PB8CN253' 'PB1CN231' 'PPS01-140 B-Line' '5440'
mean (LSD=1.0) 14.1 14.0 13.1 15.2
std. deviation 1.0 0.8 1.2 1.6

Cotyledon width (mm)

  'PB8CN253' 'PB1CN231' 'PPS01-140 B-Line' '5440'
mean (LSD=2.0) 27.9 24.5 25.0 28.3
std. deviation 1.9 1.6 2.1 3.7

Flower petal length (mm)

  'PB8CN253' 'PB1CN231' 'PPS01-140 B-Line' '5440'
mean (LSD=1.0) 13.5 14.0 14.1 15.2
std. deviation 1.2 0.8 1.0 0.9

Flower petal width (mm)

  'PB8CN253' 'PB1CN231' 'PPS01-140 B-Line' '5440'
mean (LSD=1.0) 6.1 6.4 6.9 7.2
std. deviation 0.8 0.6 0.8 0.7

Silique length (mm)

  'PB8CN253' 'PB1CN231' 'PPS01-140 B-Line' '5440'
mean (LSD=6.5) 53.7 47.3 55.3 56.0
std. deviation 4.1 3.4 3.5 3.9

Beak length (mm)

  'PB8CN253' 'PB1CN231' 'PPS01-140 B-Line' '5440'
mean (LSD=2.0) 9.8 8.5 6.3 9.3
std. deviation 1.6 1.2 1.5 1.3

Days to maturity (number of days from planting to maturity)

  'PB8CN253' 'PB1CN231' 'PPS01-140 B-Line' '5440'
mean 86 91 89 91

Plant height (at maturity) (cm)

  'PB8CN253' 'PB1CN231' 'PPS01-140 B-Line' '5440'
mean (LSD=7.0) 121 122 126 131
std. deviation 13 13 11 8

Click on image for larger view
PB8CN253
Canola: 'PB8CN253' (left) with reference varieties 'PB1CN231' (centre left), 'PPS01-140 B-Line' (centre right) and '5440' (right)

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