PB1CN285

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 'PB1CN285' is wider than those of 'PB1CN231' and 'PPS01-140 B-Line'. 'PB1CN285' has a shorter leaf than '5440'. The petiole of 'PB1CN285' is shorter than those of 'PPS01-140 B-Line' and '5440'. 'PB1CN285' has a shorter silique than '5440'. The silique beak of 'PB1CN285' is longer than that of 'PPS01-140 B-Line'. The plants of 'PB1CN285' mature later than those of 'PPS01-140 B-Line' and '5440'. At maturity, the plants of 'PB1CN285' are shorter than the plants of '5440'. The seed coat of 'PB1CN285' is brown whereas it is black for 'PPS01-140 B-Line' and '5440'.

Description:

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

COTYLEDON: medium to long, wide

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

FLOWER PETAL: yellow, medium length and width

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

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

QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 45.3% of whole dried seed, protein is 48.5% of dried oil free meal, low concentration of glucosinolates (10.4 µmol/g)

CHEMICAL REACTION: susceptible to glufosinate ammonium herbicides

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

Origin & Breeding History: 'PB1CN285' is the male fertile maintainer line of 'PA1CN185'. It is a non-transgenic selected line which was derived by crossing a donor line containing the Ms8 gene to an inbred line, with the inbred line used as a recurring parent in a backcrossing scheme. The initial cross was conducted in Saskatoon, Saskatchewan, Canada in 2017. 'PB1CN285' was selected in 2019 on the basis of per se performance, vigour, maturity, blackleg resistance, clubroot resistance, seed pod shattering resistance, oil content, fatty acid profile and glucosinolate content. Breeder seed production commenced in Saskatoon, Saskatchewan, Canada in 2020.

Tests & Trials: The comparative trials for 'PB1CN285' were conducted during the 2021 and 2022 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 approximately 1300 plants per variety per year. The measured characteristics were based on 30 measurements except for 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 'PB1CN285' with reference varieties 'PB1CN231', 'PPS01-140 B-Line' and '5440'

Cotyledon width (mm)

Leaf length (cm)

Petiole length (cm)

Silique length (mm)

Beak length (mm)

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

Plant height (at maturity) (cm)

Click on image for larger view

Canola: 'PB1CN285' (left) with reference varieties 'PB1CN231' (centre left), 'PPS01-140 B-Line' (centre right) and '5440' (right)