Agassiz

Pea

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
6000 C&E Trail
Lacombe, Alberta
T4L 1W1
Canada
Tel: (403) 782-8126
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
Agassiz
Pea: 'Agassiz' (right) with reference variety 'Eclipse' (left)

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