Denomination: 'HY301-HRW'
Botanical Name: Triticum aestivum
Applicant/Holder: Agrigenetics, Inc. (A division of Dow AgroSciences Inc.)
9330 Zionsville Road
Indianapolis, Indiana
United States of America
Breeder: Mark Etienne, DOW AgroSciences (A Division of Dow AgroSciences, Inc.), St. Mary's, Ontario
Agent in Canada: DOW AgroSciences (A Division of Dow AgroSciences, Inc.)
7061 Cobble Hills Road
St. Mary's, Ontario
N4X 1C7
Tel: 519-232-4341 x225
Application Date: 2013-02-26
Application Number: 13-7943
Protective direction granted: 2013-02-26
Grant of Rights Date: 2015-08-13
Certificate Number: 5091
Date rights revoked: 2016-08-13

Variety Description

Varieties used for comparison: 'Wentworth' and 'HY300-HRW'

Summary: At booting, 'HY301-HRW' has a semi-erect growth habit whereas it is erect in 'Wentworth'. The frequency of plants with recurved/drooping flag leaves is low to medium on 'HY301-HRW' whereas it is medium to high on the plants of 'HY300-HRW'. The intensity of anthocyanin colouration on the flag leaf auricles of 'HY301-HRW' is very weak whereas it is very strong on 'Wentworth' and strong to very strong on 'HY300-HRW'. 'HY301-HRW' has strong to very strong glaucosity of the culm whereas it is medium on the culms of both reference varieties. At maturity, the spike attitude of 'HY301-HRW' is inclined whereas it is nodding on 'HY300-HRW'. The kernel size of 'HY301-HRW' is small to medium whereas it is large on 'Wentworth' and medium to large on 'HY300-HRW'.


PLANT: hard red winter type, semi-erect growth habit at the 5 to 9 tiller stage, heads emerge mid-season, matures mid-season

SEEDLING: absent or very weak intensity of anthocyanin colouration of coleoptile, glabrous lower leaf sheaths, very weak density of pubescence on lower leaf blades

FLAG LEAF: low to medium frequency of plants with recurved/drooping flag leaves, very weak to weak anthocyanin colouration of auricles, strong glaucosity of sheath, glabrous blade and sheath

CULM NECK: strong to very strong glaucosity, straight
STRAW: thin pith in cross section, no anthocyanin colouration at maturity
SPIKE: medium glaucosity, parallel-sided shape, medium density, white at maturity, incline attitude, medium to dense hairiness on convex surface of apical rachis segment
AWNS: medium length awns and awnlets, white, spreading attitude
LOWER GLUME: medium length and width, medium density of pubescence, medium extent of internal hair
LOWER GLUME SHOULDER: narrow to medium width, slightly sloping to straight
LOWER GLUME BEAK: medium length, very slightly curved
LOWEST LEMMA: slightly curved beak shape

KERNEL: medium red, medium size, medium length and width, elliptical shape, rounded to angular cheek, medium to long brush hairs, narrow to medium width and shallow to medium depth of crease
GERM: medium size, oval shape

QUALITY CHARACTERISTICS: fair to good bread making quality
DISEASE REACTION: resistant to moderately resistant to Black point and smudge (Cochliobolus sativus, Alternaria species and Pseudomonas syringae pv. atrofaciens) and Leaf rust (Puccinia triticina), moderately susceptible to Septoria tritici blotch (Septoria tritici), moderately resistant to moderately susceptible to Fusarium head blight (Fusarium graminearum, Fusarium species INOC 4-LOC), resistant to moderately resistant to Spindle streak mosaic virus, resistant to Barley Yellow Dwarf virus

Origin & Breeding History: 'HY301-HRW' (experimental designations TW301-020 and DANW3003) is derived from the cross between 'Warthog' / TW 97407 made in the lab at the Nairn Research Facility, Ailsa Craig, Ontario in 1999-2000. The F1 seed was planted in the lab in 2000 and was doubled using the doubled haploid (maize pollinated) method. The F2 was planted into the nursery in the fall of 2002 and selected in the summer of 2003 for yield, seed, agronomic and quality characteristics. TW301-020 was entered into a single replicate trial in the fall of 2004 and subsequent yield evaluations through 2007. TW301-020 was tested for two years in the Orthogonal Hard Wheat Trial (OCCC) during the 2007-2008 and 2008-2009 growing seasons.

Tests & Trials: Test and trials for 'HY301-HRW' were conducted during the 2012 and 2013 growing seasons at the Nairn Research Facility, Ailsa Craig, Ontario. Plot size was 4.14 metres squared and consisted of 6 rows. The row length was 3.0 metres with 18 cm spacing between rows. There were 4 replicates in an RCB Design. Measured characteristics were based on 20 measurements per variety per year.

Click on image for larger view
Wheat: 'HY301-HRW' (centre) with reference varieties 'HY300-HRW' (left) and 'Wentworth' (right)

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