CDC S120-22
| Denomination: | 'CDC S120-22' |
|---|---|
| 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: | 2023-06-21 |
| Provisional Protection:: | 2023-06-21 |
| Application Number: | 23-11402 |
Variety Description
Varieties used for comparison: 'MFR131', 'MFR171' and 'CDC S110-22'
Summary: The stipule of 'CDC S120-22' is wider than that of 'MFR171'. The density of flecking on the stipule of 'CDC S120-22' is medium to dense whereas it is dense to very dense for the reference varieties. The plants of 'CDC S120-22' flower earlier than those of 'CDC S110-22'. The one hundred seed weight of 'CDC S120-22' is greater than that of 'MFR131' and 'MFR171' and less than 'CDC S110-22'.
Description:
PLANT: field type, anthocyanin colouration absent, green foliage at flowering, flowers early
STEM: anthocyanin colouration of axil absent, fasciation absent, medium number of nodes up to and including the first fertile node
LEAF: leaflets absent
STIPULE: medium length from axil to tip, short to medium length lobe below axil, medium to dense flecking
FLOWER: maximum of two per node
STANDARD: white, level to moderately arched base, weak undulation
UPPER SEPAL: broad, acute to rounded apex
POD: entire parchment, no thickened wall, pointed distal part, absent or very weak to weak curvature, medium green when fully swollen, suture strings present
IMMATURE SEED: light to medium green intensity
DRY SEED: cylindrical, simple starch grains, wrinkling of cotyledon absent, green cotyledon, matures mid-season
HILUM: same colour as testa
Origin & Breeding History: 'CDC S120-22' (experimental designation 1245-3) originated from the F2 population of a cross conducted between the line 883-1 and an F1 resulting from the cross between the lines 757-3 and 757-1 conducted in 2010 at the University of Saskatchewan, Crop Development Centre in Saskatoon, Saskatchewan. The variety was advanced based on seed yield and weight, time of flowering and maturity, vine length and lodging resistance as well as disease resistance. Breeder seed was established from 42 sub-lines at the F9 generation in 2017.
Tests & Trials: The comparative trials for 'CDC S120-22' were conducted in Saskatoon, Saskatchewan during the 2022 and 2023 growing seasons. The trials were arranged in a RCB design consisting of 2 replications per variety. Each plot was 3.35 square metres with rows 3.36 metres long spaced 0.3 metres apart. The measured characteristics were based on 20 measurements per variety per year except for the 100 seed weight where 8 measurements were taken 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 'CDC S120-22' with reference varieties 'MFR131', 'MFR171' and 'CDC S110-22'
Time of flowering (number of days from planting to when 30% of plants have at least one flower open)
| 'CDC S120-22' | 'MFR131' | 'MFR171' | 'CDC S110-22' | |
|---|---|---|---|---|
| mean 2022 | 55 | 56 | 57 | 57 |
| mean 2023 | 52.5 | 54 | 54.5 | 54.5 |
Stipule width (cm)
| 'CDC S120-22' | 'MFR131' | 'MFR171' | 'CDC S110-22' | |
|---|---|---|---|---|
| mean 2022 | 3.2 | 3.6 | 2.8 | 3.2 |
| std. deviation 2022 | 0.5 | 0.6 | 0.4 | 0.9 |
| mean 2023 | 3.6 | 3.9 | 3.3 | 3.4 |
| std. deviation 2023 | 0.5 | 0.6 | 0.4 | 0.6 |
Seed weight (grams per 100 seeds) (g)
| 'CDC S120-22' | 'MFR131' | 'MFR171' | 'CDC S110-22' | |
|---|---|---|---|---|
| mean 2022 | 38.9 | 37.9 | 30.6 | 40.1 |
| std. deviation 2022 | 0.5 | 0.9 | 0.5 | 0.4 |
| mean 2023 | 41.0 | 39.6 | 31.6 | 41.7 |
| std. deviation 2023 | 0.1 | 0.2 | 0.2 | 0.3 |
Click on image for larger view
Pea: 'CDC S120-22' (top right) with reference varieties 'CDC S110-22' (top left), 'MFR131' (bottom left) and 'MFR171' (bottom right)
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