Denomination: 'Mendel'
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: 2008-04-15
Application Number: 08-6292
Grant of Rights Date: 2010-02-22
Certificate Number: 3785
Date rights surrendered: 2014-02-22

Variety Description

Variety used for comparison: 'Cooper'

Summary: 'Mendel' is taller than 'Cooper'. The petiole of 'Mendel' is longer than 'Cooper'. 'Mendel' has a wider stipule than 'Cooper'. The flowering time of 'Mendel' is early to medium whereas it is medium to late for 'Cooper'. 'Mendel' has an arched to strongly arched base of the flower standard whereas it is raised to level for 'Cooper'. 'Mendel' has less dimpled cotyledons than 'Cooper'.


PLANT: field type, no stem fasciation, green colour at flowering, no anthocyanin colouration, semi-leafless
STEM: medium vine
STIPULE: normal development, few rabbit-eared stipules, very sparse to sparse flecking

FLOWER: blooms early to mid season, many flower bearing nodes per stem, two flowers per node, white standard, base of standard is arched to strongly arched, pointed apex of upper calyx lobe, medium length peduncle

POD: thickened wall absent, very weak concave curvatures, distal part blunt, green when fully swollen, 8 to 9 ovules
IMMATURE SEED: light green
DRY SEED: simple starch grain, green cotyledon, no marbling, no black hilum, ovoid shaped, absent or very weak wrinkling of cotyledon, no dimpling, medium size, medium maturity

Origin & Breeding History: 'Mendel' (experimental designation MP1835) is the result of the cross 9427004/Carneval made in 1999 in Morden, Manitoba. The main objectives of the cross were to combine the high yielding, good lodging resistance and good bleaching resistance from the parents. The breeding method is pedigree selection in combination with single seed descent.

Tests & Trials: Tests and trials were conducted during the summers of 2007 and 2008 in Lacombe, Alberta. Trials consisted of 4 replicates per variety, 5 x 1 meter with 20 cm row space. The seeding rate was 85 germinating seeds per meter square.

Comparison tables for 'Mendel' with reference variety 'Cooper'

Plant height (cm)

  'Mendel' 'Cooper'
mean 89 83
standard deviation 3.6 4.3

Petiole length (mm)

  'Mendel' 'Cooper'
mean 89 65
standard deviation 6.2 4.5

Maximum width of the stipule (mm)

  'Mendel' 'Cooper'
mean 63 58
standard deviation 6.3 4.9

Seed weight (grams per 1000 seed)

  'Mendel' 'Cooper'
mean 216 246

Click on image for larger view
Pea: 'Mendel' (MP1835) (left) with reference variety 'Cooper' (right)

Click on image for larger view
Pea: 'Mendel' (MP1835) (left) with reference variety 'Cooper' (right)

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