PR1CN821

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: 'PPS02-364', 'PPS04-205' and '5440'

Summary: The cotyledon of 'PR1CN821' is longer and wider than that of 'PPS04-205'. The petiole of 'PR1CN821' is longer than that of 'PPS02-364'. The plants of 'PR1CN821' flower later than those of 'PPS02-364' and '5440'. The petal of 'PR1CN821' is narrower than those of 'PPS04-205' and '5440'. 'PR1CN821' has a longer silique than 'PPS04-205'. The silique beak of 'PR1CN821' is shorter than that of 'PPS02-364'. The plants of 'PR1CN821' mature later than those of 'PPS02-364' and '5440'.

Description:

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

COTYLEDON: medium to long, medium width

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

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

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

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

QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 45.1% of whole dried seed, protein is 47.7% of dried oil free meal, low concentration of glucosinolates (10.3 µmol/g)

CHEMICAL REACTION: resistant to glufosinate ammonium herbicides

DISEASE REACTION: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam)

Origin & Breeding History: 'PR1CN821' is a restorer line in the process of F1 hybrid production. It was derived by crossing an inbred line containing the Rf3 gene in a homozygous state to a donor line, which was then crossed to a recurring parent in a backcrossing scheme. The initial cross was conducted in Saskatoon, Saskatchewan, Canada in 2019. 'PR1CN821' was selected in 2021 on the basis of fertility restoration of numerous male sterile lines and expression of resistance to glufosinate-ammonium herbicide. Other selection parameters included height, vigour, maturity, blackleg resistance, seed pod shattering resistance, oil content, fatty acid profile, glucosinolate content and combining ability. Breeder seed production commenced in Saskatoon, Saskatchewan, Canada in 2021.

Tests & Trials: The comparative trials for 'PR1CN821' 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 'PR1CN821' with reference varieties 'PPS02-364', 'PPS04-205' and '5440'

Cotyledon length (mm)

Cotyledon width (mm)

Petiole length (cm)

Days to flowering (number of days from planting to when 50% of plants have one or more open flowers)

Flower petal width (mm)

Silique length (mm)

Beak length (mm)

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

Click on image for larger view

Canola: 'PR1CN821' (left) with reference varieties 'PPS02-364' (centre left), 'PPS04-205' (centre right) and '5440' (right)