CDC Roxy
| Denomination: | 'CDC Roxy' |
|---|---|
| Previously Proposed Denomination: | '3959-6' |
| Botanical Name: | Lens culinaris |
| Applicant/Holder: |
University of Saskatchewan Crop Development Centre 4D36 Agriculture Building, 51 Campus Drive Saskatoon, Saskatchewan S7N 5A8 Canada |
| Breeder: |
Albert Vandenberg, University of Saskatchewan, Saskatoon, Saskatchewan |
| Application Date: | 2014-03-31 |
| Application Number: | 14-8243 |
| Grant of Rights Date: | 2020-03-02 |
| Certificate Number: | 6160 |
| Grant of Rights Termination Date: | 2040-03-02 |
Variety Description
Varieties used for comparison: 'CDC Rosetown', 'CDC Redberry', 'CDC Dazil' and 'CDC Maxim'
Summary: The leaflets of 'CDC Roxy' are longer than those of 'CDC Redberry'. At maturity, the pods of 'CDC Roxy' are shorter than those of 'CDC Redberry' and 'CDC Maxim'. The seed width of 'CDC Roxy' is very narrow whereas it is narrow for 'CDC Redberry' and 'CDC Maxim'. The seed of 'CDC Roxy' has one colour whereas that of 'CDC Dazil' has two colours. The seed weight of 'CDC Roxy' is less than that of 'CDC Rosetown', 'CDC Redberry', 'CDC Dazil' and 'CDC Maxim'.
Description:
PLANT: matures early to mid-season
STEM: weak to medium intensity of anthocyanin colouration
LEAF: elliptic
FLOWER: flowers mid-season, medium size, white standard with medium violet stripes, stripes on wing absent
POD: mainly two ovules, yellow at maturity, truncate shaped apex
DRY SEED: orange cotyledon, very narrow, elliptic in longitudinal cross-section, greenish grey with no pattern on testa, dull brown hilum
USE: human consumption
Origin & Breeding History: 'CDC Roxy' (experimental designation 3959-6) was developed from the cross between 'CDC Rosetown' and 'CDC Redbow' conducted in 2005 at the Crop Development Centre at the University of Saskatchewan, Saskatoon, Saskatchewan. Selections were made in the F1 to F6 generations, where 23 sub-lines were used to establish the breeder seed. Throughout the generations, selections were based on yield, seed weight, seed size (including diameter and plumpness), seed coat colour, cotyledon colour, days to flower, days to maturity, lodging resistance, plant height and disease resistance. 'CDC Roxy' was evaluated as 3959-6 in the Pulse and Special Crops Cooperative Registration Test in 2011 and 2012.
Tests & Trials: Tests and trials for 'CDC Roxy' were conducted at the Crop Development Centre of the University of Saskatchewan, Saskatoon, Saskatchewan during the summers of 2014 and 2018. The trials were conducted using a complete randomized block 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 95 seeds per square metre. Measured characteristics were based on 20 measurements per variety per year, except seed weight, which was based on a minimum of 10 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 'CDC Roxy' with reference varieties 'CDC Rosetown', 'CDC Redberry', 'CDC Dazil' and 'CDC Maxim'
Leaflet length (cm)
| 'CDC Roxy' | 'CDC Rosetown' | 'CDC Redberry' | 'CDC Dazil' | 'CDC Maxim' | |
|---|---|---|---|---|---|
| mean 2014 | 1.2 | 1.3 | 1.0 | 1.2 | 1.1 |
| std. deviation 2014 | 0.2 | 0.2 | 0.1 | 0.2 | 0.1 |
| mean 2018 | 1.7 | 1.6 | 1.5 | 1.5 | 1.4 |
| std. deviation 2018 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
Pod length (at maturity) (excluding beak) (cm)
| 'CDC Roxy' | 'CDC Rosetown' | 'CDC Redberry' | 'CDC Dazil' | 'CDC Maxim' | |
|---|---|---|---|---|---|
| mean 2014 | 1.2 | 1.1 | 1.3 | 1.2 | 1.3 |
| std. deviation 2014 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| mean 2018 | 1.2 | 1.3 | 1.3 | 1.3 | 1.3 |
| std. deviation 2018 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
Seed weight (g/100 seeds)
| 'CDC Roxy' | 'CDC Rosetown' | 'CDC Redberry' | 'CDC Dazil' | 'CDC Maxim' | |
|---|---|---|---|---|---|
| mean 2014 | 2.81 | 3.15 | 3.90 | 3.27 | 3.83 |
| std. deviation 2014 | 0.11 | 0.15 | 0.24 | 0.25 | 0.20 |
| mean 2018 | 3.16 | 3.32 | 4.18 | 3.61 | 4.23 |
| std. deviation 2018 | 0.09 | 0.09 | 0.26 | 0.35 | 0.14 |
Click on image for larger view
Lentil: 'CDC Roxy' (top) with reference varieties 'CDC Rosetown' (bottom left), 'CDC Redberry' (bottom centre left), 'CDC Dazil' (bottom centre right) and 'CDC Maxim' (bottom right)
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