Agassiz
| Denomination: | 'Agassiz' |
|---|---|
| Previously Proposed Denomination: | 'Bounty' |
| 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: | 2006-02-15 |
| Application Number: | 06-5396 |
| Grant of Rights Date: | 2007-11-16 |
| Certificate Number: | 2988 |
| Grant of Rights Termination Date: | 2025-11-16 |
Variety Description
Variety used for comparison: 'Eclipse'
Summary: 'Agassiz' is a yellow cotyledon field pea which has sparse flecking on the stipules, while the reference variety 'Eclipse' has medium to dense stipule flecking. The base of the standard of 'Agassiz' is more strongly arched than the base of the standard of 'Eclipse'. The pods of 'Agassiz' have very weak to weak concave curvature, whereas the pods of 'Eclipse' have no curvature.
Description:
PLANT: no stem fasciation, green colour, no anthocyanin colouration
STEM: medium length vine, no anthocyanin colouration of axil
LEAF: semi-leafless
STIPULE: moderate waxiness on upper surface, no dentation, normal development, not rabbit eared, sparse flecking
FLOWER: mid-season flowering, many flower bearing nodes per stem, one to two flowers per node
STANDARD: white, arched base
UPPER CALYX LOBE: pointed apex
PEDUNCLE: medium length
POD: no thickened wall, very weak to weak concave curvature, blunt distal part, green colour, light green immature seeds
SEED: medium size, simple starch grain, yellow cotyledon, no black hilum, ovoid shape, no wrinkling of cotyledon, very low frequency dimpled cotyledons, mid-season maturity
DISEASE REACTION: resistant to powdery mildew (Erysiphe polygoni), and moderately susceptible to mycosphaerella blight (Mycosphaerella pinodes)
Origin & Breeding History: 'Agassiz', which was tested as MP1824, was developed at Agriculture and Agri-Food Canada from the cross MP1392 x 'Grande'. MP1392 was derived form the cross 'AC Tamor' x 'Montana' and was a semi-leafless, powdery mildew resistant, yellow cotyledon breeding line developed at the Agriculture and Agri-Food Canada Research Station, Morden, Manitoba. 'Grande' was a normal leaf, powdery mildew susceptible yellow pea variety developed by Svalof-Weibull in Sweden. The breeding method for 'Agassiz' was pedigree selection in combination with single seed descent. The initial cross was made in the summer of 1996 at the Agriculture and Agri-Food Canada Research Station in Morden, Manitoba. The breeder seed of 'Agassiz' was derived from a single line at the F10 generation.
Tests & Trials: Trials for 'Agassiz' were conducted during the summers of 2005 and 2006 at the Agriculture and Agri-Food Canada Research Centre, Lacombe, Alberta. The trials consisted of 4 replications in a randomized block design. Each plot was 5 metres x 1 metre with 20 cm between rows. The seeding rate was 85 germinating seeds per square metre.
Comparison tables for 'Agassiz' with reference variety 'Eclipse'
Plant height (cm)
| 'Agassiz' | 'Eclipse' | |
|---|---|---|
| mean | 86.5 | 81.4 |
| std. deviation | 6.0 | 4.9 |
Stipule length (mm)
| 'Agassiz' | 'Eclipse' | |
|---|---|---|
| mean | 81 | 82 |
| std. deviation | 4.7 | 5.3 |
Stipule width (mm)
| 'Agassiz' | 'Eclipse' | |
|---|---|---|
| mean | 74 | 72 |
| std. deviation | 3.9 | 4.8 |
Pod length (mm)
| 'Agassiz' | 'Eclipse' | |
|---|---|---|
| mean | 69 | 68 |
| std. deviation | 4.2 | 3.5 |
Pod width (mm)
| 'Agassiz' | 'Eclipse' | |
|---|---|---|
| mean | 12 | 12 |
| std deviation | 0.3 | 0.4 |
Seed weight
| 'Agassiz' | 'Eclipse' | |
|---|---|---|
| grams per 1000 seeds | 202 | 230 |
Click on image for larger view
Pea: 'Agassiz' (right) with reference variety 'Eclipse' (left)
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