PR9CN762

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 'PR9CN762' is wider and longer than those of 'PPS02-364' and 'PPS04-205'. The leaf and petiole of 'PR9CN762' are longer than those of 'PPS02-364'. The petal of 'PR9CN762' is shorter than those of 'PPS02-364' and '5440'. The silique of 'PR9CN762' has a shorter beak than that of PPS02-364 and a shorter pedicel than that of '5440'. At maturity, the plants of 'PR9CN762' are shorter than the plants of '5440'. The seed coat of 'PR9CN762' is brown whereas it is black for the reference varieties.

Description:

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

COTYLEDON: long, wide

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

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

SILIQUE: horizontal attitude, short, short beak, very short to short pedicel
SEED COAT: brown

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

QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 48.6% of whole dried seed, protein is 48.3% of dried oil free meal, low concentration of glucosinolates (10.8 µmol/g)

CHEMICAL REACTION: resistant to glufosinate ammonium herbicides

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

Origin & Breeding History: 'PR9CN762' is a restorer line in the process of F1 hybrid production. It was derived as a double haploid line containing the Rf3 gene in a homozygous state. The cross was made at BASF Canada Inc. in Saskatoon, Saskatchewan, Canada in 2015 and the subsequent double haploid line extraction was made at BASF Canada Inc. in Saskatoon, Saskatchewan, Canada in 2016. 'PR9CN762' was selected in 2018 on the basis of fertility restoration of numerous male sterile lines and expression of tolerance to glufosinate-ammonium herbicide. Other selection parameters included height, vigour, maturity, blackleg resistance, seed pod shatter resistance, oil content, fatty acid profile, glucosinolate content and combining ability. Breeder seed production commenced in Saskatoon, Saskatchewan, Canada in 2018.

Tests & Trials: The comparative trials for 'PR9CN762' 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 'PR9CN762' with reference varieties 'PPS02-364', 'PPS04-205' and '5440'

Cotyledon length (mm)

Cotyledon width (mm)

Leaf length (cm)

Petiole length (cm)

Flower petal length (mm)

Beak length (mm)

Pedicel length (mm)

Plant height (at maturity) (cm)

Click on image for larger view

Canola: 'PR9CN762' (left) with reference varieties 'PPS04-205' (centre left), 'PPS02-364' (centre right) and '5440' (right)