AAC Aberdeen
| Denomination: | 'AAC Aberdeen' |
|---|---|
| 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: | 2019-02-04 |
| Provisional Protection:: | 2019-02-04 |
| Application Number: | 19-9716 |
| Grant of Rights Date: | 2020-11-24 |
| Certificate Number: | 6320 |
| Grant of Rights Termination Date: | 2040-11-24 |
Variety Description
Varieties used for comparison: 'AAC Lacombe' and 'Agassiz'
Summary: The plants of 'AAC Aberdeen' flower mid to late season whereas the plants of 'Agassiz' flower mid-season. The stipule of 'AAC Aberdeen' is longer than that of 'AAC Lacombe'. The shape of the base of the flower standard is level for 'AAC Aberdeen' whereas the shape of the base of the standard is level to moderately arched for 'AAC Lacombe' and moderately arched for 'Agassiz'. The peduncle of 'AAC Aberdeen is shorter than the peduncle of 'Agassiz'. 'AAC Aberdeen' has a longer stem than 'Agassiz'. The 100 seed weight of 'AAC Aberdeen' is less than 'AAC Lacombe' and greater than 'Agassiz'.
Description:
PLANT: field type, semi-leafless, no anthocyanin colouration, green, flowers mid to late season
STEM: many to very many nodes up to and including the first fertile node, no anthocyanin colouration of axil, no fasciation
LEAFLETS: semi-leafless
STIPULE: medium to large, very sparse density of flecking
FLOWER: maximum of two per node
STANDARD: white, level shaped base
POD: entire parchment, blunt distal portion, absent or very weak to weak curvature, green
IMMATURE SEED: medium green
SEED: matures late season, ellipsoid, simple starch grains, yellow cotyledons
HILUM: same colour as testa
DISEASE REACTION: resistant to powdery mildew (Erysiphe pisi Syd.)
Origin & Breeding History: 'AAC Aberdeen' (experimental designation P0730-118) originated from the cross 'Agassiz' // 'Polstead' / 'CDC715S-4' conducted in 2005 at the Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta. The breeding method was pedigree selection in combination with single seed descent. Major selection criteria was based on yield, maturity, pod canopy and lodging resistance. 'AAC Aberdeen' was further evaluated in the 2016 and 2017 Western Canada Field Pea Cooperative Registration Trials.
Tests & Trials: The comparative tests and trials for 'AAC Aberdeen' were conducted at the Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, during the 2018 and 2019 growing seasons. The trials were established using a randomized complete block design consisting of 4 replications per variety. 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 100 seed weight where 4 measurements were taken 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 Aberdeen' with reference varieties 'AAC Lacombe' and 'Agassiz'
Stipule length (mm)
| 'AAC Aberdeen' | 'AAC Lacombe' | 'Agassiz' | |
|---|---|---|---|
| mean 2018 | 75.9 | 63.4 | 71.6 |
| std. deviation 2018 | 6.7 | 7.3 | 8.4 |
| mean 2019 | 87.8 | 77.5 | 87.6 |
| std. deviation 2019 | 6.5 | 6.1 | 6.7 |
Peduncle length (mm)
| 'AAC Aberdeen' | 'AAC Lacombe' | 'Agassiz' | |
|---|---|---|---|
| mean 2018 | 60.9 | 54.5 | 76.8 |
| std. deviation 2018 | 11.4 | 13.0 | 20.0 |
| mean 2019 | 98.6 | 97.1 | 122.0 |
| std deviation 2019 | 17.7 | 19.3 | 16.8 |
Stem length (cm)
| 'AAC Aberdeen' | 'AAC Lacombe' | 'Agassiz' | |
|---|---|---|---|
| mean 2018 | 99.0 | 99.5 | 90.4 |
| std. deviation 2018 | 5.4 | 7.0 | 8.9 |
| mean 2019 | 130.8 | 130.6 | 126.3 |
| std. deviation 2019 | 5.5 | 6.5 | 7.3 |
Seed weight (grams per 100 seeds)
| 'AAC Aberdeen' | 'AAC Lacombe' | 'Agassiz' | |
|---|---|---|---|
| mean 2018 | 256 | 290 | 242 |
| std. deviation 2018 | 2.9 | 3.8 | 6.7 |
| mean 2019 | 260.8 | 275.1 | 226.8 |
| std. deviation 2019 | 1.1 | 3.5 | 5.3 |
Click on image for larger view
Pea: 'AAC Aberdeen' (left) with reference varieties 'AAC Lacombe' (centre) and 'Agassiz' (right)
Click on image for larger view
Pea: 'AAC Aberdeen' (left) with reference varieties 'AAC Lacombe' (centre) and 'Agassiz' (right)
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