Denomination: 'Argus'
Botanical Name: Pisum sativum
Applicant/Holder: Agriculture & Agri-Food Canada, Lacombe
Lacombe Research Station
6000 C and E trail
Lacombe, Alberta
T4L 1W1
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
Tel: (403) 782-8126
Application Date: 2009-04-23
Application Number: 09-6629
Grant of Rights Date: 2010-11-25
Certificate Number: 3970
Grant of Rights Termination Date: 2028-11-25

Variety Description

Variety used for comparison: 'Agassiz'

Summary: The waxiness of the upper surface of the stipules of 'Argus' is absent whereas it is medium on 'Agassiz'. Dentation of the stipules of 'Argus' is medium whereas it is weak on 'Agassiz'. The stipules of 'Argus' are shorter than those of 'Agassiz'. Flecking of the stipules of 'Argus' is very sparse whereas it is sparse on 'Agassiz'. There are two flowers per flowering node on 'Argus' whereas there are two to three on 'Agassiz'. The seed of 'Argus' is ovoid whereas it is spherical in 'Agassiz'.


PLANT: field type, no stem fasciation, green colour at flowering, no anthocyanin colouration, semi-leafless
STEM: short to medium length vine
LEAF: no waxiness on upper surface, medium dentation
STIPULE: normal development, very weak dentation, rabbit-eared stipules absent, very sparse flecking

FLOWER: blooms mid-season, medium number of flower bearing nodes per stem, two flowers per node, white standard, arched base of standard, pointed apex of upper calyx lobe, medium length peduncle

POD: thickened wall absent, very weak degree of concave curvature, blunt distal part, green when fully swollen, 6 ovules
IMMATURE SEED: medium green
DRY SEED: simple starch grain, yellow cotyledon, black hilum absent, ovoid shaped, absent or very weak wrinkling of cotyledon, no dimpling, medium size, matures mid-season

REACTION TO DISEASE: resistant to powdery mildew (Erysiphe polygoni)

Origin & Breeding History: 'Argus' (experimental designation MP1846) arose from the cross CDC Mozart/MP1763 made in 2000 at the Agriculture and Agri-Food Research Centre in Morden, Manitoba. The main objectives of the cross were to combine high yield, good lodging resistance and resistance to powdery mildew. The breeding method is pedigree selection in combination with single seed descent.

Tests & Trials: Tests and trials were conducted during the summers of 2008 and 2009 in Morden, Manitoba. The plots consisted of 4 replicates per variety, 5 x 1 meter with 20 cm spacing between rows. The seeding rate was 85 germinating seeds per meter square.

Comparison tables for 'Argus' with reference variety 'Agassiz'

Plant height (cm)

  'Argus' 'Agassiz'
mean 55 57
std. deviation 3.9 4.0

Number of nodes

  'Argus' 'Agassiz'
mean 19 21
std. deviation 2.5 1.8

Stipule length (mm)

  'Argus' 'Agassiz'
mean 43 47
std. deviation 4.0 4.0

Click on image for larger view
Pea: 'Argus' (MP1846) (left) with reference variety 'Agassiz' (right)

Click on image for larger view
Pea: 'Argus' (MP1846) (left) with reference variety 'Agassiz' (right)

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