CDC Rider
| Denomination: | 'CDC Rider' |
|---|---|
| Previously Proposed Denomination: | 'CDC 4506-4' |
| Botanical Name: | Pisum sativum |
| Applicant/Holder: |
University of Saskatchewan Crop Development Centre 4D36 Agriculture Building, 51 Campus Drive Saskatoon, Saskatchewan S7N 5A8 Canada |
| Breeder: |
Tom Warkentin, University of Saskatchewan, Saskatoon, Saskatchewan |
| Application Date: | 2019-05-31 |
| Provisional Protection:: | 2019-05-31 |
| Application Number: | 19-9926 |
| Grant of Rights Date: | 2023-09-12 |
| Certificate Number: | 6975 |
| Grant of Rights Termination Date: | 2043-09-12 |
Variety Description
Varieties used for comparison: 'CDC Striker', 'CDC Limerick', 'CDC Greenwater' and 'CDC Forest'
Summary: The stipule of 'CDC Rider' is narrower than those of 'CDC Limerick' and 'CDC Forest'. The pod of 'CDC Rider' is smaller than the pod of 'CDC Striker' and larger than the pod of 'CDC Limerick'. The pod curvature for 'CDC Rider' is weak while the pod curvature of 'CDC Greenwater' and 'CDC Forest' is absent or very weak. The immature seed of 'CDC Rider' is medium green while the immature seed of 'CDC Limerick' is light green. When mature, the stem including the first two nodes of 'CDC Rider' is longer than that of 'CDC Striker'. The seed weight of 'CDC Rider' is less than the seed weight of 'CDC Striker' and 'CDC Greenwater' and greater than that of 'CDC Limerick'.
Description:
PLANT: field type, no anthocyanin colouration, green foliage, flowers early to mid-season
STEM: no anthocyanin colouration of axil, no fasciation, medium to long, medium number of nodes up to and including the first fertile node
LEAF: leaflets absent
STIPULE: short to medium length, narrow, medium length from axil to tip, lobe below axil of medium length, medium density of flecking
FLOWER: maximum of two per node
STANDARD: white, narrow to medium width, level base, absent or very weak to weak undulation
UPPER SEPAL: medium width, acuminate apex
POD: medium length and width, entire parchment, weak curvature, light to medium green, medium number of ovules
IMMATURE SEED: medium green
SEED: ellipsoid, simple starch grains, green cotyledon, medium weight, matures mid-season
HILUM: colour darker than testa
Origin & Breeding History: 'CDC Rider' (experimental designation CDC 4506-4) originated from the cross between 2856-14 and 2472-4 conducted in 2010 at the Crop Development Centre at the University of Saskatchewan, Saskatoon, Saskatchewan. The variety was developed from a single plant selection from the F2 population with 38 F11 sub-lines selected to establish breeder seed in 2020. 'CDC Rider' was selected based on grain yield, days to maturity, vine length, resistance to lodging, seed weight, resistance to seed coat breakage, disease resistance, crude protein concentration and cooking time.
Tests & Trials: The comparative tests and trials for 'CDC Rider' were conducted at the Sutherland Field Site of the Crop Development Centre of the University of Saskatchewan, Saskatoon, Saskatchewan during the 2019 and 2021 growing seasons. The trials were arranged in a RCB design consisting of 2 replications per variety. Each replicate consisted of 3 rows spaced 30 cm apart, with a row length of 3.66 metres and a planting density of 84 seeds per square metre. The measured characteristics were based on 20 measurements per variety per year, except for seed weight which was based on 8 measurements per variety per year. The mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.
Comparison tables for 'CDC Rider' with reference varieties 'CDC Striker', 'CDC Limerick', 'CDC Greenwater' and 'CDC Forest'
Stipule width (cm)
| 'CDC Rider' | 'CDC Striker' | 'CDC Limerick' | 'CDC Greenwater' | 'CDC Forest' | |
|---|---|---|---|---|---|
| mean 2019 | 2.6 | 2.6 | 3.0 | 2.5 | 3.1 |
| std. deviation 2019 | 0.7 | 0.4 | 0.5 | 0.4 | 0.6 |
| mean 2021 | 2.0 | 2.2 | 2.3 | 2.2 | 2.5 |
| std. deviation 2021 | 0.4 | 0.3 | 0.3 | 0.3 | 0.4 |
Pod length (cm)
| 'CDC Rider' | 'CDC Striker' | 'CDC Limerick' | 'CDC Greenwater' | 'CDC Forest' | |
|---|---|---|---|---|---|
| mean 2019 | 6.9 | 7.3 | 6.3 | 6.7 | 7.0 |
| std. deviation 2019 | 0.5 | 0.5 | 0.4 | 0.5 | 0.4 |
| mean 2021 | 6.4 | 7.0 | 5.9 | 6.0 | 6.1 |
| std. deviation 2021 | 0.5 | 0.7 | 0.5 | 0.5 | 0.5 |
Pod width (cm)
| 'CDC Rider' | 'CDC Striker' | 'CDC Limerick' | 'CDC Greenwater' | 'CDC Forest' | |
|---|---|---|---|---|---|
| mean 2019 | 1.2 | 1.3 | 1.1 | 1.3 | 1.2 |
| std. deviation 2019 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| mean 2021 | 1.3 | 1.4 | 1.2 | 1.3 | 1.2 |
| std. deviation 2021 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
Stem length (cm)
| 'CDC Rider' | 'CDC Striker' | 'CDC Limerick' | 'CDC Greenwater' | 'CDC Forest' | |
|---|---|---|---|---|---|
| mean 2019 | 75.2 | 59.9 | 75.7 | 85.9 | 79.3 |
| std. deviation 2019 | 10.0 | 5.9 | 6.9 | 5.5 | 9.1 |
| mean 2021 | 48.7 | 45.2 | 44.8 | 43.7 | 46.1 |
| std. deviation 2021 | 3.3 | 5.8 | 3.9 | 5.4 | 4.7 |
Seed weight (grams per 100 seeds)
| 'CDC Rider' | 'CDC Striker' | 'CDC Limerick' | 'CDC Greenwater' | 'CDC Forest' | |
|---|---|---|---|---|---|
| mean 2019 | 24.1 | 25.1 | 21.9 | 25.9 | 24.7 |
| std. deviation 2019 | 0.3 | 0.5 | 0.4 | 0.3 | 0.8 |
| mean 2021 | 22.2 | 22.6 | 21.3 | 22.8 | 23.1 |
| td. deviation 2021 | 0.4 | 0.2 | 0.9 | 0.6 | 0.3 |
Click on image for larger view
Pea: 'CDC Rider' (top left) with reference varieties 'CDC Striker' (top centre), 'CDC Limerick' (top right), 'CDC Greenwater' (bottom left) and 'CDC Forest' (bottom right)
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