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Denomination: 'S10-B7'
Botanical Name: Glycine max
Applicant/Holder: Syngenta Canada Inc.
15910 Medway Road
R.R. #1
Arva, Ontario
Breeder: Don McClure, Syngenta Canada Inc., Arva, Ontario
Application Date: 2008-02-22
Application Number: 08-6188
Grant of Rights Date: 2011-02-10
Certificate Number: 4001
Date rights revoked: 2013-07-05

Variety Description

Variety used for comparison: 'S08-80'

Summary: 'S10-B7' has smaller seeds than 'S08-80'. The pubescence on the middle third of the stem of 'S10-B7' is light tawny whereas it is tawny in 'S08-80'.


HYPOCOTYL: medium anthocyanin colouration

PLANT: oilseed type, indeterminate growth type, erect growth habit, light tawny pubescence on middle third of stem

LEAF: medium green, pointed ovate lateral leaflet

FLOWER: purple

POD: tan colour
SEED: spherical rounded, medium size, dull lustre, yellow ground colour of testa, imperfect yellow hilum colour, yellow colour of hilum funicle, medium sized hilum, normal abscission layer

MATURITY: group I, 2750 heat unit rating

DISEASE RESISTANCE: resistant to phytophthora rot (Phytophthora megasperma f.sp. glycinea) races 1-3 & 6-9, susceptible to soybean cyst nematode (Heterodera glycines)

AGRONOMY: good resistance to shattering and lodging

QUALITY: 42.8 % protein, 19.3% oil

Origin & Breeding History: 'S10-B7' (experimental designation XC1070, S183443 and 04DL183443) was developed from the cross 87463 / 57133 made in Arva, Ontario in 2001. Generations F1-F2 were grown in a winter nursery in Kekaha, Hawaii. The F3 was grown in Arva, Ontario in 2002. Generations F4-F5 were grown in Hawaii. The F6 generation was grown in Arva, Ontario in the summer of 2003 where single plants were selected that fall. The progeny of these plants were grown in a single replicate trial in 2004. One of these lines was identified as 04DL183443 and was selected based on superior agronomic attributes and retained for further testing. 04DL183443 was subsequently tested in multiple environments in Ontario and Chili until 2005-2006. 'S10-B7' carries the Rps 1c gene for protection from phytophthora root rot (Phytophthora megasperma f.sp. glycinea).

Tests & Trials: Tests and trials were conducted in Arva, Ontario during the years 2008-2009. Plots consisted of 2 rows with a row length of 4 metres and row spacing of 75 cm. There were two replicates.

Click on image for larger view
Soybean: 'S10-B7' (right) with reference variety 'S08-80' (left)

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