HY124-HRS

Wheat

Denomination: 'HY124-HRS'
Previously Proposed Denomination: 'SW124-029'
Botanical Name: Triticum aestivum
Applicant/Holder: Agrigenetics, Inc. (A division of Dow AgroSciences Inc.)
9330 Zionsville Road
Indianapolis, Indiana
46268-1054
United States of America
Breeder: Mark Etienne, DOW AgroSciences (A Division of Dow AgroSciences, Inc.), St. Mary's, Ontario
Agent in Canada: Smart & Biggar
P.O. Box 2999, Station D
55 Metcalfe Street, Suite 900
Ottawa, Ontario
K1P 5Y6
Canada
Tel: 613-232-2486 ex. 1279
Application Date: 2009-06-09
Application Number: 09-6659
Protective direction granted: 2009-06-09
Protective direction withdrawn: 2010-12-17
Grant of Rights Date: 2012-06-14
Certificate Number: 4320
Grant of Rights Termination Date: 2030-06-14

Variety Description

Varieties used for comparison: 'Hobson' and 'Tokson'

Summary: The coleoptile of 'HY124-HRS' has absent or very weak intensity of anthocyanin colouration while it is medium to strong in 'Hobson'. 'HY124-HRS' has weak pubescence of the sheaths of the lower leaves at the 4 leaf stage while it is medium pubescence in the reference varieties. At the 4 leaf stage, 'HY124-HRS' has medium to dense pubescence on the blades of the lower leaves while it is weak to medium in 'Hobson'. 'HY124-HRS' has a shorter flag leaf than 'Hobson' and a wider one than 'Tokson'. The flag leaf auricles of 'HY124-HRS' have absent or very weak anthocyanin colouration while it is very strong in 'Hobson' and weak to medium in 'Tokson'. 'HY124-HRS' has a strong to very strong glaucosity of the neck of the culm while it is medium to strong for 'Hobson'. The spike of 'HY124-HRS' has very strong glaucosity while it is strong in 'Hobson'. At maturity, the shape of the neck of the culm in 'HY124-HRS' is moderately to strongly curved while it is straight for the reference varieties. 'HY124-HRS' has an erect spike attitude at maturity while it is inclined for the reference varieties. The hairiness of the convex surface of the apical rachis segment in 'HY124-HRS' is sparse while it is absent or very sparse in 'Hobson'. 'HY124-HRS' has very sparse to sparse pubescence of the lower glume while it is sparse to medium in 'Hobson'. The shape of the shoulder of the lower glume in 'HY124-HRS' is sloping to slightly sloping while it is straight in 'Hobson' and slightly sloping to straight in 'Tokson'. 'HY124-HRS' has a narrow shoulder of the lower glume while it is medium to broad in 'Hobson'.

Description:

PLANT: spring type, common wheat, semi-erect growth habit at the 5-9 tiller stage, strong to very strong glaucosity of the neck of the culm at heading, medium frequency of plants with recurved flag leaves, medium maturity

SEEDLING (4 leaf stage): absent or very weak intensity of anthocyanin colouration of the coleoptile, sparse pubescence of the sheaths of the lower leaves, medium to dense pubescence of the blades of the lower leaves

FLAG LEAF: absent or very weak intensity of anthocyanin colouration of the auricles, strong to very strong glaucosity of the sheath, glabrous blade and sheath

STRAW (AT MATURITY): thin to medium thickness of the pith in cross-section, no anthocyanin colouration
SPIKE: very strong glaucosity at heading, parallel sided profile, medium density, awns present, awns shorter than the length of the spike
SPIKE AT MATURITY: white, whitish awns, spreading awn attitude, erect attitude, moderately to strongly curved neck of the culm, sparse hairiness of convex surface of apical rachis segment
LOWER GLUME: narrow shoulder, sloping to slightly sloping shoulder, medium length, medium width, glabrous, long slightly to moderately curved beak, sparse to medium number of internal hairs
LEMMA: straight beak

KERNEL: hard red type, medium red colour, large size, medium length, medium to broad, oval to broad elliptical, rounded cheek shape, short to medium length brush hairs, medium to large sized round germ, medium to wide crease width, shallow to medium crease depth

QUALITY: good bread making, poor pastry and biscuit making

DISEASE REACTION: resistant to Powdery mildew (Erysiphe graminis, f. sp. tritici), Leaf rust (Puccinia triticina) and Barley yellow dwarf virus (BYDV), resistant to moderately resistant to Septoria nodorum blotch (Septoria nodorum) and Stem rust (Puccinia graminis f. sp. tritici), and moderately resistant to Septoria tritici blotch (Septoria tritici) and Fusarium head blight (Fusarium graminearum)

Origin & Breeding History: 'HY124-HRS' (experimental designation SW124-029) is a spring wheat variety bred and developed by Hyland Seeds Inc. 'HY124-HRS' derives from the cross made in 1999 of Grandin / Celtic // Mamba at Ailsa Craig, Ontario. The doubled haploid method was used to breed this variety. In 2000, it was grown and evaluated in a 3-row nursery plot. The assessment, selection and advancement of the variety from 2000 to 2006 was based on its reaction to available leaf and stem diseases, straw strength, height, and seed and other agronomic and quality characteristics. 'HY124-HRS' was tested in both private and public trials from 2001 to 2006

Tests & Trials: Tests and trials were conducted in 2009 and 2010 at St. Mary's, Ontario. Strip plots consisted of 5 rows with a row length of 22 meters and a row spacing 25 cm. Plots were seeded at a rate of 400 seeds per meter squared. There was only one replicate.


Comparison tables for 'HY124-HRS' with reference varieties 'Hobson' and 'Tokson'

Means are based on the average of the two years.

Flag leaf length (cm)

  'HY124-HRS' 'Hobson' 'Tokson'
mean 17.34 22.20 18.58
std. deviation 1.90 2.84 2.08

Flag leaf width (mm)

  'HY124-HRS' 'Hobson' 'Tokson'
mean 16.30 15.82 14.08
std. deviation 1.49 1.25 0.97

Spike length (excluding awns) (cm)

  'HY124-HRS' 'Hobson' 'Tokson'
mean 7.75 8.43 8.51
std. deviation 0.50 1.07 0.69

Click on image for larger view
HY124-HRS
Wheat: 'HY124-HRS' (centre) with reference varieties 'Hobson' (left) and 'Tokson' (right)

Click on image for larger view
HY124-HRS
Wheat: 'HY124-HRS' (middle) with reference varieties 'Hobson' (top) and 'Tokson' (bottom)

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