PA22CN197

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 ‘PA22CN197' is longer and wider than those of ‘PA1CN131' and ‘PPS01-140 A-Line'. ‘PA22CN197' has a shorter leaf and petiole than that of ‘5440'. The flower petal of ‘PA22CN197' is longer than that of ‘PA1CN131' and is shorter and narrower than that of ‘5440'. ‘PA22CN197' has a longer silique than the reference varieties. ‘PA22CN197' has a longer silique beak than that of ‘PPS01-140 A-Line'. The pedicel of ‘PA22CN197' is shorter than that of ‘5440' and longer than those of ‘PA1CN131' and ‘PPS01-140 A-Line'. Plant maturity occurs later for ‘PA22CN197' than for ‘PPS01-140 A-Line'. At maturity, the plants of ‘PA22CN197' are shorter than those of ‘5440'. The seed coat of ‘PA22CN197' is black whereas it is brown for ‘PA1CN131'.

Description:

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

COTYLEDON: medium to long, medium to wide

LEAF: medium green, few to medium number of lobes, rounded margin, medium density of medium depth margin indentations, short to medium length, narrow to medium width, 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 to 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 45.7% of whole dried seed, protein is 47.6% of dried oil free meal, low concentration of glucosinolates (13.1 µmol/g)

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

Origin & Breeding History: ‘PA22CN197' 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 2016, to a male sterile line which contained the Ms8 gene. The initial cross was made at BASF Canada Inc. in Saskatoon, Saskatchewan, Canada in 2016. ‘PA22CN197' was selected in 2019 based on male sterility stability, expression of resistance to glufosinate-ammonium herbicide, and good combining ability with numerous restorer lines. Other selection parameters included height, vigour, maturity, blackleg resistance, clubroot resistance, resistance to seed pod shattering, oil content, fatty acid profile and glucosinolate content. Breeder seed production commenced in Saskatoon, Saskatchewan in 2020.

Tests & Trials: The comparative trials for ‘PA22CN197' were conducted during the 2022 and 2023 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 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 'PA22CN197' with reference varieties 'PA1CN131', 'PPS01-140 A-Line' and '5440'

Cotyledon length (mm)

Cotyledon width (mm)

Leaf length (cm)

Petiole length (cm)

Flower petal length (mm)

Flower petal width (mm)

Silique length (mm)

Beak length (mm)

Pedicel length (mm)

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

Plant height (at maturity) (cm)

Click on image for larger view

Canola: ‘PA22CN197' (left) with reference varieties ‘PA1CN131' (centre left), ‘PPS01-140 A-Line' (centre right) and ‘5440' (right)