CDC Bronze
| Denomination: | 'CDC Bronze' |
|---|---|
| Previously Proposed Denomination: | '2435-2' |
| Botanical Name: | Cicer arietinum |
| Applicant/Holder: |
University of Saskatchewan Crop Development Centre 4D36 Agriculture Building, 51 Campus Drive Saskatoon, Saskatchewan S7N 5A8 Canada |
| Breeder: |
Bunyamin Tar'an, University of Saskatchewan, Saskatoon, Saskatchewan |
| Application Date: | 2021-06-28 |
| Provisional Protection:: | 2021-06-28 |
| Application Number: | 21-10596 |
| Grant of Rights Date: | 2024-02-07 |
| Certificate Number: | 6991 |
| Grant of Rights Termination Date: | 2044-02-07 |
Variety Description
Varieties used for comparison: 'CDC Cory', 'CDC Consul' and 'CDC Sunset'
Summary: The leaf of 'CDC Bronze' has less pairs of leaflets than that of 'CDC Cory'. The peduncle of 'CDC Bronze' is shorter than that of 'CDC Cory' and 'CDC Sunset'. One month after harvest, the seed of 'CDC Bronze' is yellowish brown while the seed of 'CDC Cory' is brown. The dry seed weight of 'CDC Bronze' is less than that of 'CDC Consul'. The seed of 'CDC Bronze' has weak to medium ribbing while that of 'CDC Cory' has medium to strong ribbing. The plants of 'CDC Bronze' are tolerant to imazamox herbicide whereas the plants of 'CDC Consul' are sensitive to imazamox herbicide.
Description:
PLANT: erect to semi-erect growth habit after flowering, weak to medium ramification, medium height at full pod development, mid-season maturity
STEM: medium intensity of anthocyanin colouration
LEAF: medium green
FLOWER: flowers mid-season, white
POD: light to medium green, short to medium length beak, one to two ovules per pod
DRY SEED: yellowish brown one month after harvest, medium seed weight, round to angular shape, weak to medium ribbing, matures mid-season
Origin & Breeding History: 'CDC Bronze' (experimental designation 2435-2) originated from a cross between the variety 'CDC Jade' and breeding line MM9 (ICCX8600047-9) conducted in the summer of 2010 at the Crop Development Centre, University of Saskatchewan, Saskatoon, Saskatchewan. A single plant selection was made at the F2 generation. The variety was advanced with subsequent selections made through the F3 to F8 generations based on yield, seed weight, seed size, seed coat colour, days to flower, days to maturity, plant height and disease resistance. In 2021, 17 F9 sub-lines were used to establish breeder seed.
Tests & Trials: The comparative trials for 'CDC Bronze' were conducted by the Crop Development Centre, University of Saskatchewan, at Elrose, Saskatchewan in 2021 and 2022. 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 40 seeds per square metre. 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. Mean differences were significant at the 5% confidence probability level based LSD values. Herbicide tolerances were supported by data provided by the University of Saskatchewan using the methodology as published in Tar`an B. et al. 2014 Theor. Appl. Genet. 127: 1583-1591.
Comparison tables for 'CDC Bronze' with reference varieties 'CDC Cory', 'CDC Consul' and 'CDC Sunset'
Number of pairs of leaflets (count)
| 'CDC Bronze' | 'CDC Cory' | 'CDC Consul' | 'CDC Sunset' | |
|---|---|---|---|---|
| mean 2021 (LSD=0.5) | 5.6 | 6.8 | 6.1 | 5.9 |
| std. deviation 2021 | 0.5 | 0.4 | 0.6 | 0.3 |
| mean 2022 (LSD=0.2) | 4.9 | 6.0 | 5.7 | 5.1 |
| std. deviation 2022 | 0.3 | 0.6 | 0.5 | 0.6 |
Peduncle length (from stem to first pod) (mm)
| 'CDC Bronze' | 'CDC Cory' | 'CDC Consul' | 'CDC Sunset' | |
|---|---|---|---|---|
| mean 2021 (LSD=1.0) | 6.3 | 7.8 | 6.5 | 8.0 |
| std. deviation 2021 | 1.9 | 1.9 | 1.1 | 1.5 |
| mean 2022 (LSD=1.1) | 14.9 | 17.7 | 18.1 | 17.6 |
| std. deviation 2022 | 3.5 | 2.6 | 2.4 | 3.1 |
Seed weight (grams per 100 seeds)
| 'CDC Bronze' | 'CDC Cory' | 'CDC Consul' | 'CDC Sunset' | |
|---|---|---|---|---|
| mean 2021 (LSD=1.26) | 26.2 | 25.2 | 27.8 | 25.0 |
| std. deviation 2021 | 0.46 | 0.73 | 0.60 | 0.46 |
| mean 2022 (LSD=0.4) | 31.6 | 30.0 | 33.4 | 30.7 |
| std. deviation 2022 | 0.61 | 0.23 | 0.19 | 0.61 |
Click on image for larger view
Chickpea: 'CDC Bronze' (left) with reference varieties 'CDC Cory' (centre left), 'CDC Consul' (centre right) and 'CDC Sunset' (right)
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