OAC Champion

Soybean

Denomination: 'OAC Champion'
Previously Proposed Denomination: 'OAC 99-01'
Botanical Name: Glycine max
Applicant/Holder: University of Guelph
Catalyst Centre
50 Stone Rd E, Ichthyology Building #92
Guelph, Ontario
N1G 2W1
Canada
Breeder: Istvan Rajcan, University of Guelph, Guelph, Ontario
Application Date: 2001-05-09
Application Number: 01-2707
Grant of Rights Date: 2008-10-29
Certificate Number: 3383
Grant of Rights Termination Date: 2026-10-29

Variety Description

Varieties used for comparison: 'OAC Wallace', 'OAC Bayfield', 'AC 2001', 'Enterprise' and 'Dundas'

Summary: 'OAC Champion' has anthocyanin colouration present in the hypocotyl while 'Dundas' does not. 'OAC Champion' flowers earlier than 'OAC Wallace', 'OAC Bayfield', 'AC 2001' and 'Enterprise'. The plant height of 'OAC Champion' is shorter than 'AC 2001'. 'OAC Champion' has an imperfect yellow hilum colour while it is brown in 'OAC Wallace', 'OAC Bayfield' and 'Dundas' and dark brown in 'AC 2001'. 'OAC Champion' matures earlier than 'AC 2001'. The protein content of 'OAC Champion' is higher than 'OAC Wallace', 'OAC Bayfield', 'AC 2001', and 'Enterprise'. 'OAC Champion' has lower oil content than 'OAC Wallace' but slightly higher than 'Enterprise'.

Description:

PLANT: indeterminate growth, erect to semi-erect growth habit, tawny hairs on middle third of stem
HYPOCOTYL: strong anthocyanin colouration

LEAF: medium green colour, pointed ovate lateral leaflet, very weak to weak blistering

FLOWER: purple

MATURITY: 0 group, 2650 heat unit rating, photoperiod sensitivity rated as very sensitive
POD: tan to brown colour
SEED: spherical flattened shape, medium size, dull lustre, yellow ground colour of testa
HILUM: imperpect yellow colour, funicle same colour as testa, small to medium size, lacking abscission layer

AGRONOMIC TRAITS: good resistance to shattering, fair to good resistance to lodging
QUALITY CHARACTERISTICS: oilseed type
CHEMICAL CHARACTERISTICS: high peroxidase levels

Origin & Breeding History: 'OAC Champion' was derived from the cross M88-207 x OAC Bayfield made in 1994, at the University of Guelph, Guelph, Ontario. M88-207 is an F5 derived line from the cross M81-99 x Hardin. The crossed material was derived by Single Seed descent technique until the F4 generation when a single plant was selected for maturity and agronomic traits. Seed from this plant was harvested and maintained by pedigree selection until the F4:7 generation when 25 plants were selected for morphological uniformity. It was tested as OAC 99-01 in 1999 2600HU Private Soybean trials and as SeCan 99-01 in the 2000 Ontario Soybean Variety Trials.

Tests & Trials: Tests and trails were conducted during the summer/fall of 2004 and 2005 at the Elora Research Station of the University of Guelph, Elora, Ontario. Plots consisted of 4 rows per variety with a row spacing of 35 centimeters and a row length of 5 meters. There were 3 replicates arranged in a RCB design.


Comparison tables for 'OAC Champion' with reference varieties 'OAC Wallace', 'OAC Bayfield', 'AC 2001', 'Enterprise' and 'Dundas'

Days to flowering

  'OAC Champion' 'OAC Wallace' 'OAC Bayfield' 'AC 2001' 'Enterprise' 'Dundas'
mean 44 47 48 52 47 45

Plant height (cm)

  'OAC Champion' 'OAC Wallace' 'OAC Bayfield' 'AC 2001' 'Enterprise' 'Dundas'
mean 84.70 84.14 87.74 100.56 81.68 87.25
std. deviation 8.767 6.073 6.906 10.209 6.089 6.765

Days to maturity

  'OAC Champion' 'OAC Wallace' 'OAC Bayfield' 'AC 2001' 'Enterprise' 'Dundas'
mean 114 116 115 119 116 116

Protein content

  'OAC Champion' 'OAC Wallace' 'OAC Bayfield' 'AC 2001' 'Enterprise' 'Dundas'
mean 42.1 37.2 39.7 38.8 40.7 41.2

Oil content

  'OAC Champion' 'OAC Wallace' 'OAC Bayfield' 'AC 2001' 'Enterprise' 'Dundas'
mean 20.4 21.7 21.0 20.7 19.6 21.0

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OAC Champion
Soybean: 'OAC Champion' (right) with reference variety 'Enterprise' (left)

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OAC Champion
Soybean: 'OAC Champion' (right) with reference variety 'OAC Wallace' (left)

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OAC Champion
Soybean: 'OAC Champion' (right) with reference variety 'AC 2001' (left)

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