LN4228

Pea

Denomination: 'LN4228'
Botanical Name: Pisum sativum
Applicant/Holder: Limagrain Europe SA
Biopole Clermont-Limagne
Rue Henri Mondor
Saint Beauzire
63360
France
Breeder: Titus de Vries, Limagrain Europe SA, Saint Beauzire, France
Agent in Canada: Lindholm Seed Farm
RR#1 New Norway
New Norway, Alberta
T0B 3L0
Canada
Tel: 780-352-3240
Application Date: 2014-04-10
Application Number: 14-8278
Grant of Rights Date: 2016-12-28
Certificate Number: 5401
Grant of Rights Termination Date: 2036-12-28

Variety Description

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

Summary: The density of flecking on the stipules of 'LN4228' is very sparse whereas it is sparse on 'Agassiz'. 'LN4228' flowers early in the season whereas 'CDC Meadow' and 'Agassiz' flower mid-season. The base of the flower standard of 'LN4228' is level whereas it is moderately arched for 'CDC Meadow' and 'Agassiz'. The flower standard of 'LN4228' has strong undulation whereas 'Agassiz' has medium. The curvature of the pod of 'LN4228' is absent or very weak whereas it is weak for 'CDC Meadow' and 'Agassiz'. 'LN4228' has a shorter stem length than 'CDC Meadow' and 'Agassiz'. 'LN4228' has a heavier 1000 seed weight than both reference varieties.

Description:

PLANT: field type, no anthocyanin colouration, no stem fasciation, medium green at flowering, no leaflets, early maturing

STEM: no anthocyanin colouration of axil, many nodes up to and including first fertile node

STIPULE: medium size, medium length from axil to tip, short lobe below axil, very sparse density of flecking

PEDUNCLE: short spur, medium number of bracts
FLOWER: blooms early, two to three flowers per node
STANDARD: white, level base, strong undulation
UPPER SEPAL: narrow, acuminate apex at second flowering node

POD: parchment entire, thickened wall absent, blunt distal part, absent or very weak curvature, medium green when fully swollen, suture strings present
IMMATURE SEED: light green
DRY SEED: ellipsoid shape, compound starch grain, weak intensity of wrinkling of cotyledon, yellow cotyledon, hilum same colour as testa

Origin & Breeding History: 'LN4228' arose as the result of a cross made in 2006 between 'CEB4132' and 'Kleopatra' at the former breeding station in Lelystad and Rilland, Netherlands. A single plant was selected, followed by single seed descent and replicated yield trials. Selection criteria were yield, resistance to powdery mildew, resistance to lodging and plant height. 'LN4228' was first entered in the Alberta Regional Variety trials in 2014.

Tests & Trials: Tests and trials were conducted during the summers of 2014 and 2015 in Barrhead, Alberta. Plots were arranged in a non-randomized design with 4 replicates in 4.5 metre long rows. The plot size was 3.6 square metres with a 0.2 metre row spacing. Planting density was 75 plants per square metre. Measured characteristics for each variety were based on 10 measurements per year. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.


Comparison tables for 'LN4228' with reference varieties 'CDC Meadow' and 'Agassiz'

Stem length (cm)

  'LN4228' 'CDC Meadow' 'Agassiz'
mean 2014 73.0 81.3 81.0
std. deviation 2014 7.13 11.37 8.54
mean 2015 47.9 59.6 61.9
std. deviation 2015 4.58 3.30 5.59

Seed weight (grams per 1000 seed)

  'LN4228' 'CDC Meadow' 'Agassiz'
mean 2014 239.7 178.4 202.1
std. deviation 2014 4.78 8.12 4.34
mean 2015 269.2 229.9 258.2
std. deviation 2015 3.08 6.88 1.15

Click on image for larger view
LN4228
Pea: 'LN4228' (right) with reference varieties 'Agassiz' (left) and 'CDC Meadow' (centre)

Click on image for larger view
LN4228
Pea: 'LN4228' (left) with reference varieties 'Agassiz' (right) and 'CDC Meadow' (centre)

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