PR8CN745
| Denomination: | 'PR8CN745' |
|---|---|
| Botanical Name: | Brassica napus |
| Applicant/Holder: |
BASF Agricultural Solutions Seed US LLC 100 Park Avenue Florham Park, New Jersey 07932 United States of America |
| Breeder: |
Jeffrey Mansiere, BASF Canada Inc., Saskatoon, Saskatchewan |
| Agent in Canada: |
BASF Canada Inc. Site 600, Box 117 RR#6 Saskatoon, Saskatchewan S7K 3J9 Canada Tel: 306-371-6226 |
| Application Date: | 2019-07-03 |
| Provisional Protection:: | 2019-07-03 |
| Application Number: | 19-9968 |
| Grant of Rights Date: | 2021-09-08 |
| Certificate Number: | 6470 |
| Exemption from compulsory licensing: | Yes |
| Expiry date for exemption from compulsory licensing: | 2023-09-08 |
| Grant of Rights Termination Date: | 2041-09-08 |
Variety Description
Varieties used for comparison: 'PPS02-364', 'PPS04-205' and '5440'
Summary: The cotyledon of 'PR8CN745' is wider than that of 'PPS02-364' and 'PPS04-205' and it is longer than that of all reference varieties. The leaf of 'PR8CN745' has a rounded margin whereas the leaf of 'PPS02-364' has a sharp margin. The petiole of 'PR8CN745' is longer than that of 'PPS02-364'. The petal of 'PR8CN745' is shorter than that of 'PPS02-364'. The silique of 'PR8CN745' is longer than the reference varieties. 'PR8CN745' matures earlier than that of 'PPS02-364'. At maturity, the plant of 'PR8CN745' is taller than that of 'PPS04-205'.
Description:
PLANT: male fertile inbred line, spring type, medium to tall at maturity
COTYLEDON: long to very long, wide to very wide
LEAF: medium green, many to very many lobes, rounded margin, low to medium density of shallow to medium depth margin indentations, medium length and width, short petiole
FLOWER PETAL: yellow, medium length and width
SILIQUE: horizontal attitude, medium length, short to medium length beak, short pedicel
SEED COAT: black
AGRONOMIC CHARACTERISTICS: medium resistance to lodging, medium to good resistance to shattering
QUALITY CHARACTERISTICS: erucic acid is 0.02% of total fatty acids, oil content is 51.6% of whole dried seed, protein is 48.0% of dried oil free meal, low concentration of glucosinolates (11.8 µmol/g)
HERBICIDE REACTION: resistant to glufosinate ammonium herbicides
DISEASE REACTION: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam) and Clubroot (Plasmodiophora brassicae)
Origin & Breeding History: 'PR8CN745' 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 in 2016. 'PR8CN745' was selected in 2017 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, clubroot resistance, seed pod shatter resistance, oil content, fatty acid profile, glucosinolate content and combining ability.
Tests & Trials: The comparative trials for 'PR8CN745' were conducted during the 2018 and 2019 growing seasons in Saskatoon, Saskatchewan. They were set up in a RCB Design with 3 replications per variety. Each year, the plots consisted of 3 rows that were 6 metres in length with a spacing of 25 cm between rows and 50 cm between plots. The planting density resulted in a total of approximately 1300 plants per variety. The measured characteristics were based on 30 measurements of the cotyledon, leaf, flower and plant height and 60 measurements of the silique. 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 'PR8CN745' with reference varieties 'PPS02-364', 'PPS04-205' and '5440'
Cotyledon length (mm)
| 'PR8CN745' | 'PPS02-364' | 'PPS04-205' | '5440' | |
|---|---|---|---|---|
| mean (LSD=1.0) | 17.5 | 13.0 | 12.7 | 14.7 |
| std. deviation | 1.0 | 1.6 | 1.1 | 1.2 |
Cotyledon width (mm)
| 'PR8CN745' | 'PPS02-364' | 'PPS04-205' | '5440' | |
|---|---|---|---|---|
| mean (LSD=1.0) | 28.5 | 23.2 | 24.2 | 27.7 |
| std. deviation | 1.9 | 2.2 | 2.2 | 2.2 |
Petiole length (cm)
| 'PR8CN745' | 'PPS02-364' | 'PPS04-205' | '5440' | |
|---|---|---|---|---|
| mean (LSD=1.7) | 8.2 | 6.5 | 8.9 | 8.9 |
| std. deviation | 1.7 | 1.7 | 1.8 | 1.7 |
Flower petal length (mm)
| 'PR8CN745' | 'PPS02-364' | 'PPS04-205' | '5440' | |
|---|---|---|---|---|
| mean (LSD=1.0) | 13.8 | 16.1 | 14.5 | 15.5 |
| std. deviation | 1.0 | 0.8 | 0.7 | 0.9 |
Silique length (mm)
| 'PR8CN745' | 'PPS02-364' | 'PPS04-205' | '5440' | |
|---|---|---|---|---|
| mean (LSD=4.8) | 60.9 | 55.3 | 50.9 | 55.9 |
| std. deviation | 4.5 | 4.4 | 4.1 | 5.0 |
Days to maturity
| 'PR8CN745' | 'PPS02-364' | 'PPS04-205' | '5440' | |
|---|---|---|---|---|
| mean | 96 | 99 | 99 | 95 |
Plant height at maturity (cm)
| 'PR8CN745' | 'PPS02-364' | 'PPS04-205' | '5440' | |
|---|---|---|---|---|
| mean (LSD=5.4) | 129 | 126 | 121 | 133 |
| std. deviation | 7 | 4 | 6 | 7 |
Click on image for larger view
Canola: 'PR8CN745' (left) with reference varieties 'PPS02-364' (centre left), 'PPS04-205' (centre right) and '5440' (right)
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