AAC Carver

Pea

Denomination: 'AAC Carver'
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: 2014-12-10
Application Number: 14-8491
Grant of Rights Date: 2016-11-08
Certificate Number: 5365
Grant of Rights Termination Date: 2036-11-08

Variety Description

Varieties used for comparison: 'Agassiz' and 'CDC Mozart'

Summary: The stipules of 'AAC Carver' are shorter and narrower than those of both reference varieties. The petiole of 'AAC Carver' is longer than that of both reference varieties. The peduncle of 'AAC Carver' is shorter than that of both reference varieties. When pods are swollen, the plants of 'AAC Carver' are taller than those of both reference varieties.

Description:

PLANT: field type, no anthocyanin colouration, no stem fasciation, green colour at flowering, no leaflets, matures early to mid-season
STIPULE: very sparse to sparse density of flecking

PEDUNCLE: short
FLOWER: blooms early to mid-season, two flowers per node
STANDARD: white, level to moderately arched base
UPPER SEPAL: pointed apex at second flowering node

POD: absent or very weak curvature, seed bearing suture concave, blunt distal part, medium green when fully swollen
IMMATURE SEED: light green
DRY SEED: ovoid shape, simple starch grain, absent or very weak wrinkling of cotyledon, yellow cotyledon, cotyledons dimpled, medium size, hilum same colour as testa

Origin & Breeding History: 'AAC Carver' (experimental designation MP1920) is the result of the cross 'CDC715S-4' / 'P98089063' made in the winter of 2003 in the greenhouse at the Agriculture and Agri-Food Canada Research Station in Morden, Manitoba. The breeding method was pedigree selection in combination with single seed descent. In 2009, one line, P0405-12 was selected for its high yield potential, good resistance to lodging and seed quality. In 2010, it was multiplied and purified in a seed increase strip planted in the field in Lacombe, Alberta. It was evaluated as MP1920 at various locations throughout western Canada during the 2011 and 2012 growing seasons in the Western Canada Field Pea Cooperative Registration Test B.

Tests & Trials: Tests and trials were conducted during the 2014 and 2015 growing seasons in Lacombe, Alberta. Plots were arranged in a RCB design with 4 replicates. The plot size was 5 metres by 1 metre with a 20 cm row spacing. The seeding rate was 85 germinating seeds per square metre. Measured characteristics were based on 20 measurements per variety per year. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.


Comparison tables for 'AAC Carver' with reference varieties 'Agassiz' and 'CDC Mozart'

Stipule length (mm)

  'AAC Carver' 'Agassiz' 'CDC Mozart'
mean 2014 68.0 79.4 73.1
std. deviation 2014 5.8 5.6 3.7
mean 2015 55.2 61.0 62.7
std. deviation 2015 5.9 8.1 7.9

Stipule width (mm)

  'AAC Carver' 'Agassiz' 'CDC Mozart'
mean 2014 33.6 37.3 40.1
std. deviation 2014 4.8 2.3 2.4
mean 2015 26.3 31.2 36.2
std. deviation 2015 3.5 4.3 5.4

Plant height (mm)

  'AAC Carver' 'Agassiz' 'CDC Mozart'
mean 2014 84.6 72.9 70.8
std. deviation 2014 7.7 11.0 5.8
mean 2015 74.8 67.3 59.4
std. deviation 2015 11.2 8.3 6.2

Peduncle length (mm)

  'AAC Carver' 'Agassiz' 'CDC Mozart'
mean 2014 55.4 101.7 78.1
std. deviation 2014 8.5 15.8 11.5
mean 2015 35.7 60.2 53.1
std. deviation 2015 10.6 12.0 9.8

Stem length (cm)

  'AAC Carver' 'Agassiz' 'CDC Mozart'
mean 2014 123.9 104.2 92.8
std. deviation 2014 11.3 6.8 6.5
mean 2015 88.6 80.2 65.6
std. deviation 2015 9.2 5.2 9.9

Click on image for larger view
AAC Carver
Pea: 'AAC Carver' (left) with reference varieties 'Agassiz' (centre) and 'CDC Mozart' (right)

Click on image for larger view
AAC Carver
Pea: 'AAC Carver' (left) with reference varieties 'Agassiz' (centre) and 'CDC Mozart' (right)

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