SY985

Wheat

Denomination: 'SY985'
Previously Proposed Denomination: 'HY985'
Botanical Name: Triticum aestivum
Applicant/Holder: Syngenta Canada, Inc.
105 Jefferson Street
Morden, Manitoba
R6M 0B8
Canada
Breeder: Francis Kirigwi, Syngenta Canada, Inc., Morden, Manitoba
Application Date: 2010-06-23
Application Number: 10-7015
Grant of Rights Date: 2012-04-24
Certificate Number: 4304
Grant of Rights Termination Date: 2030-04-24

Variety Description

Varieties used for comparison: '5700 PR' and '5701 PR'

Summary: The flag leaf of 'SY985' is longer than '5701 PR'. 'SY985' has a straight culm at maturity while it is strongly curved for '5700 PR' and strongly to very strongly curved for '5701 PR'. The spike glaucosity of 'SY985' is medium while it is strong for the reference varieties. 'SY985' has awns that are weakly spreading while they are strongly spreading in '5700 PR'. The hairiness of the convex surface of the apical rachis segment of 'SY985' is absent or very sparse while it is sparse in the reference varieties. 'SY985' has a very long beak on the lower glume while it is medium length for '5700 PR' and long for '5701 PR'.

Description:

PLANT: spring type, common wheat, erect to semi-erect growth habit, medium frequency of recurved/drooping flag leaves
SEEDLING (4-leaf stage): absent or very weak intensity of anthocyanin of the coleoptile, glabrous sheath and blade of the lower leaf

FLAG LEAF: glabrous sheath and blade, weak anthocyanin colouration of the auricles, strong glaucosity of the sheath

CULM/NECK: very weak to weak glaucosity, straight at maturity
STRAW: thin pith in cross-section, no anthocyanin colouration at maturity

SPIKE: tapering, medium density, erect attitude at maturity, medium glaucosity, white at maturity, absent or very sparse hairiness of the convex surface of the apical rachis segment
AWNS: present, long, slightly spreading attitude, white
LOWER GLUME: medium width, long, sparse pubescence, sloping to slightly sloping shape of the shoulder, very narrow to narrow shoulder, straight very long beak, sparse extent of internal hairs
LEMMA: slightly curved beak

KERNEL: medium red, large, long, midwide, elliptical, rounded cheek, short brush hairs, medium sized oval germ, midwide mid-deep crease

AGRONOMICS: good resistance to shattering
QUALITY: good bread making

DISEASE RESISTANCE: resistant to Common root rot (Cochliobolus sativus), Loose smut (Ustilago tritici), Leaf rust (Puccinia triticina) and Stem rust (Puccinia graminis f. sp. tritici), moderately resistant to moderately susceptible to Common bunt (Tilletia caries, Tilletia foetida) and moderately susceptible to Fusarium head blight (Fusarium graminearum)

Origin & Breeding History: 'SY985' is a spring wheat originating from the cross N99-3098WL / N98-3080W made in Berthoud, Colorado in 2001. Individual head selections were made from an F2 population screened at the Syngenta Seeds Canada breeding nursery in Rosebank, Manitoba in 2002. Single seed descent method was used to advance these selections through the F3 and F4 generations in the greenhouse. In the summer of 2003, F5 head rows were individually bulked from a selection nursery at Rosebank, Manitoba. The individual bulks in the F6 generation were screened and selected from a two location observation nursery (Rosebank, Souris) in 2004. One of the bulk selections was designated 01S3020-16 and tested in Syngenta Seeds Canada research plots in 2005 and 2006. It was tested in the High Yield Bread Wheat Co-op as 'HY985' during the 2007, 2008 and 2009 seasons. Selection criteria used to develop this variety included height, maturity, yield, quality and disease resistance.

Tests & Trials: Trials were conducted at the Viterra/Proven Seed Research Farm in Rosebank, Manitoba during the summers of 2009 and 2010. Plots consisted of 7 rows with a row length of 5 metres and a row spacing of 18 cm. There were 3 replicates arranged in a RCB design.


Comparison table for 'SY985' with reference varieties '5700 PR' and '5701 PR'

Flag leaf length (cm)

  'SY985' '5700 PR' '5701 PR'
mean (2009) 22.37 21.24 19.74
std. deviation 3.0 3.53 2.8
mean (2010) 24.80 18.32 20.08
std. deviation 2.03 1.68 2.63

Click on image for larger view
SY985
Wheat: 'SY985' (HY985) (left) with reference varieties '5700PR' (centre) and '5701PR' (right)

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