Faba bean

Denomination: 'Imposa'
Botanical Name: Vicia faba
Applicant/Holder: Limagrain Europe SA
Biopole Clermont-Limagne
Rue Henri Mondor
Saint Beauzire
Breeder: Abel Jan Bouwman, Limagrain Advanta Nederland BV, Rilland, Netherlands
Agent in Canada: Limagrain Cereals Research Canada
201-1475 Chevrier Boulevard
Winnipeg, Manitoba
R3T 1Y7
Tel: 204-988-4682
Application Date: 2009-02-26
Application Number: 09-6511
Grant of Rights Date: 2011-02-10
Certificate Number: 4003
Grant of Rights Termination Date: 2029-02-10

Variety Description

Variety used for comparison: 'Snowbird'

Summary: 'Imposa' has a medium sized leaflet while it is a small size in 'Snowbird'. The leaflet of 'Imposa' is sub-orbicular in shape while it is sub-elliptic in 'Snowbird'.


PLANT: erect growth habit, indeterminate growth type, early time to flowering, moderate time to maturity, low tillering capacity, high self fertilization

STEM: absent or very weak anthocyanin colouration, white nectaries on the nodal bracts

LEAFLET: medium intensity of grey green colour, medium size, sub-orbicular shape, strong tendancy to folding

FLOWER: white ground colour, medium number per 2nd or 3rd flowering node
WING: uniform white petal colour, melanin spot absent
STANDARD: melanin spot absent, no anthocyanin colouration present

POD: 3 to 4 seeds per pod, erect attitude, medium width, yellow to brown colour at maturity, thin to medium thickness of pod wall, very slight degree of curvature, flattened-constricted shape, matte lustre
SEED: medium size, elliptic shape in cross-section, oblong shape in median longitudinal section, olive to tan colour at maturity, white ground colour of the testa, no testa pattern, small sized very light grey hilum, yellow cotyledon colour

Origin & Breeding History: 'Imposa' (experimental designation Ceb 04928) is the result of a cross made in 1996 between '94012' x 'Pistache' at Lelystad, The Netherlands. In 1997, a single plant was selected in the F2, followed by years of line selection, replicated yield trials and multiplication. Selection criteria included yield, resistance to disease, resistance to lodging and earliness in maturity.

Tests & Trials: Test and trials were conducted in Barrhead, Alberta during the summers of 2008 and 2009. Plots consisted of 4 rows with a row length of 4.5 meters and a row spacing of 0.2 meters. Plots were spaced 0.3 meters apart. There were 4 replicates. Measured characteristics were based on a minimum of 10 measurements per year per variety.

Click on image for larger view
Faba bean: 'Imposa' (right) with reference variety 'Snowbird' (left)

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