PA6CN108

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: 'PA1CN131', 'PPS01-140 A-Line' and '5440'

Summary: The cotyledon of 'PA6CN108' is longer than that of 'PPS01-140 A-Line'. The leaf of 'PA6CN108' is shorter than that of '5440'. The petiole of 'PA6CN108' is longer than the petiole of 'PA1CN131' and shorter than that of '5440'. The plants of 'PA6CN108' flower later than the plants of the reference varieties. The petal of 'PA6CN108' is shorter than that of '5440'. The silique of 'PA6CN108' is longer than those of 'PA1CN131' and 'PPS01-140 A-Line'. The silique of 'PA6CN108' has a longer beak than that of 'PPS01-140 A-Line'. 'PA6CN108' has a shorter pedicel than '5440'. At maturity, the plants of 'PA6CN108' are shorter than the plants of '5440'. The seed coat of 'PA6CN108' is brown whereas it is black for 'PPS01-140 A-Line' and '5440'.

Description:

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

COTYLEDON: medium length, narrow to medium width

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

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

SILIQUE: semi-erect attitude, medium length, short beak, very 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 46.6% of whole dried seed, protein is 46.7% of dried oil free meal, low concentration of glucosinolates (11.7 µmol/g)

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

Origin & Breeding History: 'PA6CN108' is a male sterile line which contains the Ms8 gene construct in the heterozygous state. It was derived by backcrossing a double haploid line, which was extracted in 2011, to a male sterile line containing the Ms8 gene. 'PA6CN108' was selected in 2016 on the basis of male sterility stability, expression of tolerance to glufosinate-ammonium herbicide and good combining ability with numerous restorer lines. Other selection parameters included height, 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 2016.

Tests & Trials: The comparative trials for 'PA6CN108' were conducted during the 2016 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 'PA6CN108' with reference varieties 'PA1CN131', 'PPS01-140 A-Line' and '5440'

Cotyledon length (mm)

Leaf length (cm)

Petiole length (cm)

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

Flower petal length (mm)

Silique length (mm)

Beak length (mm)

Pedicel length (mm)

Plant height (at maturity) (cm)

Click on image for larger view

Canola: 'PA6CN108' (left) with reference varieties 'PA1CN131' (centre left), 'PPS01-140 A-Line' (centre right) and '5440' (right)