PR23CN872

Canola

Variety Description

Varieties used for comparison: 'PPS02-364', 'PPS04-205' and 'L255PC'

Summary: The cotyledon of ‘PR23CN872' is shorter than that of ‘L255PC', longer than that of ‘PPS04-205' and wider than those of ‘PPS02-364' and ‘PPS04-205'. ‘PR23CN872' has a longer petiole than that of ‘PPS02-364'. Flowering occurs later for the plants of ‘PR23CN872' than for those of the reference varieties. ‘PR23CN872' has a longer silique than ‘PPS04-205'. The silique beak of ‘PR23CN872' is shorter than that of ‘PPS02-364'. Plant maturity occurs later for the plants of ‘PR23CN872' than for those of ‘L255PC'. At maturity, the plants of ‘PR23CN872' are taller than those of ‘PPS04-205'. The seed coat of ‘PR23CN872' is brown whereas it is black for ‘PPS02-364' and ‘PPS04-205'.

Description:

PLANT: male fertile inbred line, spring type, tall at maturity

COTYLEDON: medium length, medium to wide

LEAF: medium green, many lobes, rounded margin, medium to dense margin indentations, medium depth margin indentations, medium length, narrow, medium length petiole

FLOWER PETAL: yellow, medium length and width

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

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

QUALITY CHARACTERISTICS: erucic acid is 0.04% of total fatty acids, oil content is 46.6% of whole dried seed, protein is 45.5% of dried oil free meal, low concentration of glucosinolates (12.0 µmol/g)

CHEMICAL REACTION: resistant to glufosinate-ammonium herbicides

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

Origin & Breeding History: ‘PR23CN872' 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 between proprietary lines was made in Saskatoon, Saskatchewan, Canada in 2020 and the subsequent double haploid line extraction was made from the resulting F1 in 2021. ‘PR23CN872' was selected in 2023 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 shattering resistance, oil content, fatty acid profile, glucosinolate content and combining ability. Breeder seed production commenced in Saskatoon, Saskatchewan, Canada in 2023.

Tests & Trials: The comparative trials for ‘PR23CN872' were conducted during the 2023 and 2024 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 'PR23CN872' with reference varieties 'PPS02-364', 'PPS04-205' and 'L255PC'

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)

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: 'PR23CN872' (left) with reference varieties 'PPS02-364' (centre left), 'PPS04-205' (centre right) and 'L255PC' (right)