AAC Julius
| Denomination: | 'AAC Julius' |
|---|---|
| Botanical Name: | Pisum sativum |
| Applicant/Holder: |
Agriculture & Agri-Food Canada, Lacombe Lacombe Research Station 6000 C and E trail Lacombe, Alberta T4L 1W1 Canada |
| Breeder: |
Deng-jin Bing, Agriculture & Agri-Food Canada, Lacombe, Alberta |
| Agent in Canada: |
Agriculture & Agri-Food Canada Office of Intellectual Property and Commercialization c/o Shannon Whyte 107 Science Place Saskatoon, Saskatchewan S7N 0X2 Canada Tel: (204) 999-9887 |
| Application Date: | 2020-12-24 |
| Provisional Protection:: | 2020-12-24 |
| Application Number: | 20-10404 |
| Grant of Rights Date: | 2023-04-20 |
| Certificate Number: | 6812 |
| Grant of Rights Termination Date: | 2043-04-20 |
Variety Description
Varieties used for comparison: 'Agassiz', 'Earlystar' and 'AAC Beyond'
Summary: The stipule of 'AAC Julius' is longer than the stipule of 'Earlystar' and narrower than that of 'AAC Beyond'. The peduncle, from the stem to the first pod, of 'AAC Julius' is shorter than that of 'Agassiz'. The pod of 'AAC Julius' is shorter than those of the reference varieties. At maturity, the stem, including the first two nodes, of 'AAC Julius' is longer than that of 'AAC Beyond'. The seed weight of 'AAC Julius' is less than that of 'Agassiz'.
Description:
PLANT: field type, no anthocyanin colouration, green foliage, flowers mid to late season
STEM: no anthocyanin colouration of axil, no fasciation, medium length, very many nodes up to and including the first fertile node
PETIOLE: medium to long from axil to first tendril
LEAF: leaflets absent
STIPULE: medium length and width, very sparse to sparse flecking
PEDUNCLE: short to medium length from stem to first pod
FLOWER: maximum of two per node
STANDARD: medium width, moderately arched base
UPPER SEPAL: acuminate to acute apex
POD: short to medium length, medium width, entire parchment, absent or very weak to weak curvature, green, medium number of ovules
IMMATURE SEED: medium green
SEED: ellipsoid, simple starch grains, yellow cotyledon, medium weight, matures mid to late season
HILUM: same colour as testa
Origin & Breeding History: 'AAC Julius' (experimental designation P0937-4006) originated from the cross between 'Agassiz' and 'CDC1897-14' conducted in the winter of 2008-2009 at the Agriculture and Agri-Food Canada Lacombe Research and Development Centre in Lacombe, Alberta. The breeding method used was pedigree selection in combination with single seed descent for generation advancement. In 2014, an F6 line designated P0937-4006 was selected based on maturity, pod canopy and lodging resistance and further evaluated in a replicated preliminary yield test in Lacombe, Alberta in 2015. In 2016, P0937-4006 was tested in multiple locations in Western Canada, selected as a candidate for registration trials and in 2017 increased and purified in 2 x 15 metre strips in Lacombe, Alberta. 'AAC Julius' was entered into the 2018-2019 Western Canada Field Pea Cooperative Registration Test-B and further tested in multiple locations in Western Canada.
Tests & Trials: The comparative tests and trials for 'AAC Julius' were conducted at the Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, in 2020 and 2021. The trials consisted of 4 replicates in a RCB design. Each replicate consisted of 4 rows spaced 25 cm apart, with a row length of 5 metres and a planting density of 85 viable seeds per square metre. The measured characteristics were based on 20 measurements per variety per year except seed weight which was based on 4 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 'AAC Julius' with reference varieties 'Agassiz', 'Earlystar' and 'AAC Beyond'
Stipule length (cm)
| 'AAC Julius' | 'Agassiz' | 'Earlystar' | 'AAC Beyond' | |
|---|---|---|---|---|
| mean 2020 | 8.9 | 8.7 | 7.9 | 8.9 |
| std. deviation 2020 | 0.9 | 0.4 | 0.7 | 0.6 |
| mean 2021 | 6.3 | 5.7 | 5.6 | 5.7 |
| std. deviation 2021 | 0.4 | 0.4 | 0.4 | 0.4 |
Stipule width (cm)
| 'AAC Julius' | 'Agassiz' | 'Earlystar' | 'AAC Beyond' | |
|---|---|---|---|---|
| mean 2020 | 4.5 | 4.5 | 4.5 | 5.0 |
| std. deviation 2020 | 0.5 | 0.4 | 0.5 | 0.4 |
| mean 2021 | 2.7 | 2.8 | 3.1 | 3.1 |
| std. deviation 2021 | 0.2 | 0.3 | 0.3 | 0.3 |
Peduncle length (from stem to first pod) (cm)
| 'AAC Julius' | 'Agassiz' | 'Earlystar' | 'AAC Beyond' | |
|---|---|---|---|---|
| mean 2020 | 9.3 | 11.1 | 7.6 | 9.2 |
| std. deviation 2020 | 1.9 | 1.8 | 1.6 | 1.1 |
| mean 2021 | 3.5 | 5.2 | 3.5 | 3.7 |
| std. deviation 2021 | 0.7 | 1.0 | 0.6 | 0.7 |
Pod length (cm)
| 'AAC Julius' | 'Agassiz' | 'Earlystar' | 'AAC Beyond' | |
|---|---|---|---|---|
| mean 2020 | 6.9 | 7.5 | 7.3 | 7.8 |
| std. deviation 2020 | 0.4 | 0.5 | 0.5 | 0.4 |
| mean 2021 | 6.3 | 7.1 | 7.0 | 7.1 |
| std. deviation 2021 | 0.4 | 0.4 | 0.4 | 0.4 |
Stem length (cm)
| 'AAC Julius' | 'Agassiz' | 'Earlystar' | 'AAC Beyond' | |
|---|---|---|---|---|
| mean 2020 | 136.8 | 128.5 | 134.1 | 123.4 |
| std. deviation 2020 | 8.1 | 12.0 | 10.3 | 10.1 |
| mean 2021 | 72.9 | 77.3 | 82.6 | 66.9 |
| std. deviation 2021 | 5.1 | 5.0 | 4.7 | 3.3 |
Seed weight (grams per 1000 seeds)
| 'AAC Julius' | 'Agassiz' | 'Earlystar' | 'AAC Beyond' | |
|---|---|---|---|---|
| mean 2020 | 186.0 | 206.0 | 181.0 | 180.0 |
| std. deviation 2020 | 5.4 | 6.1 | 7.3 | 4.9 |
| mean 2021 | 187.0 | 207.5 | 185.0 | 184.4 |
| std. deviation 2021 | 4.3 | 7.2 | 8.6 | 2.6 |
Click on image for larger view
Pea: 'AAC Julius' (left) with reference varieties 'Agassiz' (centre left), 'Earlystar' (centre right) and 'AAC Beyond' (right)
- Date modified: