PB9CN266

Canola

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: The cotyledon of 'PB9CN266' is wider than the cotyledon of 'PB1CN231' and longer than those of 'PB1CN231' and 'PPS01-140 B-Line'. The leaf of 'PB9CN266' is longer than the leaf of 'PB1CN231' and wider than that of 'PPS01-140 B-Line'. The silique of 'PB9CN266' is longer than that of 'PB1CN231'. The silique of 'PB9CN266' has a longer beak than that of 'PPS01-140 B-Line'. The seed coat of 'PB9CN266' is brown whereas it is black for 'PPS01-140 B-Line' and '5440'.

Description:

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

COTYLEDON: long; wide to very wide

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

FLOWER PETAL: yellow, medium length and width

SILIQUE: semi-erect attitude, short, short beak, very short to short pedicel
SEED COAT: brown

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

QUALITY CHARACTERISTICS: erucic acid is 0.03% of total fatty acids, oil content is 48.3% of whole dried seed, protein is 47.0% of dried oil free meal, low concentration of glucosinolates (12.6 µmol/g)

CHEMICAL REACTION: susceptible to glufosinate ammonium herbicides

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

Origin & Breeding History: 'PB9CN266' is the male fertile maintainer line of 'PA9CN166'. It is a non-transgenic selected line which was derived by crossing an inbred line containing the Ms8 gene. The progeny line was then selfed one generation to fix the selected traits. The initial cross and subsequent selfing were conducted in Saskatoon, Saskatchewan in 2016. 'PB9CN266' was selected in 2017 on the basis of per se performance, 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 'PB9CN266' 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 'PB9CN266' with reference varieties 'PB1CN231', 'PPS01-140 B-Line' and '5440'

Cotyledon length (mm)

Cotyledon width (mm)

Leaf length (cm)

Leaf width (cm)

Silique length (mm)

Beak length (mm)

Click on image for larger view

Canola: 'PB9CN266' (left) with reference varieties 'PB1CN231' (centre left), 'PPS01-140 B-Line' (centre right) and '5440' (right)