OAC Carson
| Denomination: | 'OAC Carson' |
|---|---|
| Previously Proposed Denomination: | 'SeCan 17-35C' |
| Botanical Name: | Glycine max |
| Applicant/Holder: |
University of Guelph Germplasm Research Innovation Office Building #92, 50 Stone Road East Guelph, Ontario N1G 2W1 Canada |
| Breeder: |
Istvan Rajcan, University of Guelph, Guelph, Ontario |
| Application Date: | 2022-01-24 |
| Provisional Protection: | 2022-01-24 |
| Application Number: | 22-10786 |
| Grant of Rights Date: | 2025-11-13 |
| Certificate Number: | 7528 |
| Grant of Rights Termination Date: | 2045-11-13 |
Variety Description
Varieties used for comparison: 'OAC Strive' and 'OAC Kamran'
Summary: When 95% of the pods are ripe, the plants of ‘OAC Carson' are shorter than those of ‘OAC Strive'. The pod of ‘OAC Carson' is medium brown whereas the pod of ‘OAC Strive' is medium to dark brown and the pod of ‘OAC Kamran' is very light to light brown. The pod of ‘OAC Carson' is wider than that of OAC Strive'. At maturity, the seed of ‘OAC Carson' is shorter than that of ‘OAC Strive'.
Description:
HYPOCOTYL: anthocyanin colouration present
PLANT: indeterminate growth type, tawny pubescence on middle third of main stem, begins flowering early to mid-season, matures early
LEAF: medium green upper side
TERMINAL LEAFLET: ovoid, small to medium size
LATERAL LEAFLET: pointed ovate, small to medium size
FLOWER: violet
POD: medium brown
SEED: medium sized, spherical flattened, weak glaucosity, yellow ground colour of testa, opaque testa
HILUM: imperfect yellow, funicle same colour as testa
Origin & Breeding History: ‘OAC Carson' (experimental designation ‘SeCan 17-35C') was developed at the University of Guelph, in Guelph, Ontario using a single seed descent breeding method. The variety originated from a cross between the parent ‘DH530' and the variety ‘Jari' conducted in 2012. The variety was advanced from the F1 to the F4 generation where a single plant was selected based on maturity and agronomic traits in 2013. The variety was designated ‘SeCan 17-35C' and tested in multiple trials from 2017 to 2019 in Ontario and Quebec.
Tests & Trials: The comparative trials of ‘OAC Carson' were conducted in St. Thomas, Ontario during the 2022 and 2023 growing seasons. In 2022, the trial included 3 replicates per variety arranged in a RCB design consisting of 15.25 meter rows with approximately 750 plants per variety. In 2023, the trial included 3 replicates per variety arranged in a RCB design consisting of 22.86 meter rows with approximately 1000 plants per variety. Measured characteristics were based on 20 measurements per variety per year. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.
Comparison tables for 'OAC Carson' with reference varieties 'OAC Strive' and 'OAC Kamran'
Plant height (when 95% of the pods are ripe) (cm)
| 'OAC Carson' | 'OAC Strive' | 'OAC Kamran' | |
|---|---|---|---|
| mean (2022) | 50.7 | 56.2 | 49.0 |
| std. deviation (2022) | 4.62 | 3.72 | 3.89 |
| mean (2023) | 46.0 | 51.9 | 39.5 |
| std. deviation (2023) | 5.88 | 6.16 | 4.62 |
Pod width (when 95% of the pods are ripe) (mm)
| 'OAC Carson' | 'OAC Strive' | 'OAC Kamran' | |
|---|---|---|---|
| mean (2022) | 7.0 | 6.1 | 6.7 |
| std. deviation (2022) | 0.62 | 0.61 | 0.51 |
| mean (2023) | 7.5 | 7.0 | 7.1 |
| std. deviation (2023) | 0.53 | 0.40 | 0.45 |
Seed length (mm)
| 'OAC Carson' | 'OAC Strive' | 'OAC Kamran' | |
|---|---|---|---|
| mean (2022) | 8.4 | 9.0 | 8.3 |
| std. deviation (2022) | 0.48 | 0.38 | 0.28 |
| mean (2023) | 8.5 | 8.9 | 8.2 |
| std. deviation (2023) | 0.33 | 0.24 | 0.19 |
Click on image for larger view
Soybean: 'OAC Carson' (left) with reference varieties 'OAC Strive' (centre) and 'OAC Kamran' (right)
Click on image for larger view
Soybean: 'OAC Carson' (left) with reference varieties 'OAC Strive' (centre) and 'OAC Kamran' (right)
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