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Denomination: 'Bia'
Previously Proposed Denomination: 'SW00137'
Botanical Name: Avena sativa
Applicant/Holder: Lantmännen SW Seed AB
Onsjövägen 13
SE-268 81
Breeder: Lantmännen SW Seed AB, Svalöv, Sweden
Agent in Canada: La Coop fédérée
19235, avenue Saint-Louis
Saint-Hyacinthe, Quebec
J2T 5J4
Tel: 450-799-2326
Application Date: 2004-06-18
Application Number: 04-4236
Grant of Rights Date: 2007-08-29
Certificate Number: 2894
Date rights revoked: 2016-08-29

Variety Description

Variety used for comparison: 'AC Ronald'

Summary: 'Bia' has a less erect juvenile growth habit than 'AC Ronald'. The lower leaf blade, leaf margin and upper culm node of 'Bia' has less pubescence than 'AC Ronald'. 'Bia' has a higher frequency of plants with recurved/drooping flag leaves than 'AC Ronald'. 'Bia is slightly taller in plant height than 'AC Ronald'. The glaucosity of the lemma of 'Bia' is stronger than 'AC Ronald'.


SEEDLING (5-9 tiller stage): semi-erect juvenile growth habit, absent to very sparse pubescence of lower leaf sheath, sparse pubescence of lower leaf blade.

PLANT: medium to tall height, intermediate number of tillers, medium to late heading, medium maturity
STEM: medium pubescence/hairiness above and below upper culm node, white straw, medium thickness

LEAF (at booting stage): absent to very sparse pubescence of the leaf margin, weak intensity of glaucosity, high frequency of plants with recurved/drooping flag leaves

PANICLE (just after heading): equilateral orientation, semi-erect attitude of branches, pendulous attitude of spikelets, medium length
LEMMA: white colour at maturity, absent to very sparse pubescence on the lateral and dorsal surface, medium length
GLUME: medium glaucosity at the green stage, mid-long
KERNEL (primary kernels from upper spikelets): white colour, medium width, medium length, medium groat pubescence, sparse to medium hairiness of base, short to medium length basal hairs, medium length rachilla

DISEASE RESISTANCE: moderately resistant to Black Loose Smut (Ustilago avena), Covered Smut (Ustilago kolleri), Stem Rust (Puccinia graminis f.sp. avenae), Crown Rust (Puccinia coronata) and Red Leaf Rust (BYDV), resistant to cereal cyst nematode (Heterodera avenae)

AGRONOMY: good shattering resistance, good drought tolerance, fair to good lodging resistance
QUALITY: medium protein, medium oil content

Origin & Breeding History: 'Bia' whose experimental designation is 'SW 00137' was developed by Svalof Weibull AB, Svalov, Sweden. The breeding was a modified pedigreed method where a single plant was selected in the F4 generation. Early generation selection was made for disease resistance and grain quality, with later selection for yield, straw stiffness and other agronomic characters.

Tests & Trials: Tests and trials were conducted during the summers of 2004 and 2006 in Aberdeen, Saskatchewan. Plots consisted of 8 rows with a row spacing of 15 cm and row length of 6 metres. There were 2 replicates arranged in a RCB design.

Comparison table for 'Bia' with reference variety 'AC Ronald'

Plant height (at maturity) (cm)

  'Bia' 'AC Ronald'
mean 105.4 95.5
std. deviation 6.64 5.57

Click on image for larger view
Oat: 'Bia' (top) with reference variety 'AC Ronald' (bottom)

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