CDC Imp
| Denomination: | 'CDC Imp' |
|---|---|
| Previously Proposed Denomination: | 'IBC978' |
| 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: | 2017-05-01 |
| Provisional Protection:: | 2017-05-01 |
| Application Number: | 17-9207 |
| Grant of Rights Date: | 2021-05-20 |
| Certificate Number: | 6425 |
| Grant of Rights Termination Date: | 2041-05-20 |
Variety Description
Varieties used for comparison: 'CDC Rosetown' and 'CDC Impala'
Summary: The seed weight of 'CDC Imp' is greater than that of 'CDC Impala'. The plants of 'CDC Imp' are tolerant to imidazolinone herbicide whereas the plants of 'CDC Rosetown' are not tolerant.
Description:
COTYLEDON: orange
PLANT: matures early to mid-season
STEM: medium intensity of anthocyanin colouration
LEAF: elliptic
FLOWER: flowers early to mid-season, medium size, white standard with violet stripes, violet stripes absent on wings
POD: mainly two ovules, yellow at maturity, truncate shaped apex
DRY SEED: very narrow, elliptic in longitudinal cross-section, grey testa with no patterning, dull brown hilum
USE: human consumption
Origin & Breeding History: 'CDC Imp' (experimental designation IBC 978) originated from the cross between 'CDC Roxy' and 'CDC Dazil' with three additional backcrosses to 'CDC Roxy'. The final cross was conducted at the Crop Development Centre, University of Saskatchewan, Saskatoon, Saskatchewan in 2012. During the F1 to F4 generations, selections were made based on yield, seed weight, seed size, seed coat colour, cotyledon colour, days to flower, days to maturity, lodging resistance, plant height and disease resistance. Thirteen sub-lines were selected from the F4 generation and subsequently used to establish breeder seed.
Tests & Trials: The comparative trials for 'CDC Imp' were conducted at the Crop Development Centre of the University of Saskatchewan, Saskatoon, Saskatchewan during the 2018 and 2019 growing seasons. The trials were conducted using 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 94 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 8 measurements per variety per year. Mean differences were significant at the 5% probability level based on a Student's t-test. Data to support Imidazolinone tolerances was provided by BASF Inc. in Saskatoon, Saskatchewan.
Comparison table for 'CDC Imp' with reference varieties 'CDC Rosetown' and 'CDC Impala'
Seed weight (grams per 100 seeds)
| 'CDC Imp' | 'CDC Rosetown' | 'CDC Impala' | |
|---|---|---|---|
| mean 2018 | 3.37 | 3.28 | 3.22 |
| std. deviation 2018 | 0.10 | 0.07 | 0.05 |
| mean 2019 | 3.28 | 3.18 | 3.13 |
| std. deviation 2019 | 0.07 | 0.06 | 0.14 |
Click on image for larger view
Lentil: 'CDC Imp' (left) with reference varieties 'CDC Rosetown' (centre) and 'CDC Impala' (right)
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