AAC Prevail


Denomination: 'AAC Prevail'
Previously Proposed Denomination: 'BW462'
Botanical Name: Triticum aestivum
Applicant/Holder: Agriculture & Agri-Food Canada, Winnipeg
Cereal Research Centre
195 Dafoe Road
Winnipeg, Manitoba
R3T 2M9
Breeder: Santosh Kumar, Agriculture & Agri-Food Canada, Brandon, Manitoba
Agent in Canada: Agriculture & Agri-Food Canada
Office of Intellectual Property and Commercialization
6000 C&E Trail
Lacombe, Alberta
T4L 1W1
Tel: (403) 782-8126
Application Date: 2013-05-06
Application Number: 13-8037
Grant of Rights Date: 2017-02-13
Certificate Number: 5416
Grant of Rights Termination Date: 2037-02-13

Variety Description

Varieties used for comparison: 'Shaw' and 'CDC Utmost'

Summary: The spike of 'AAC Prevail' has strong glaucosity whereas the spike of 'Shaw' has weak glaucosity. The shoulder shape of the lower glume is straight for 'AAC Prevail' whereas it is slightly sloping for 'CDC Utmost'. 'AAC Prevail' has a light red kernel whereas 'CDC Utmost' has a dark red kernel. The germ shape of 'AAC Prevail' is round whereas the germ shape of 'Shaw' is elliptical.


PLANT: common hard red spring type, semi-erect to intermediate growth habit at 5 to 9 tiller stage, matures mid-season

SEEDLING (4 leaf stage): absent or very weak intensity of anthocyanin colouration of coleoptile, glabrous sheath and blade of lower leaves

FLAG LEAF: medium to high frequency of plants with recurved flag leaves, absent or very weak intensity of anthocyanin colouration of auricles, medium glaucosity of sheath, glabrous blade and sheath

CULM NECK: strong glaucosity, straight
STRAW (AT MATURITY): thin pith in cross-section

SPIKE: strong glaucosity at heading, parallel sided in profile, lax to medium density, erect attitude, yellow at maturity, sparse hairiness of convex surface of apical rachis segment
AWNLETS: awnlets from tip of spike shorter than spike length
LOWER GLUME: medium to long, medium to wide, glabrous, sparse extent of internal hairs
LOWER GLUME SHOULDER: medium to broad, straight shape
LOWER GLUME BEAK: short to medium length, straight to slightly curved shape
LOWEST LEMMA: slightly curved beak

KERNEL: light red, small to medium size, medium length and width, oval shape, rounded cheek shape, medium to long brush hairs, medium to wide width and medium to deep depth of crease
GERM: medium to large, rounded shape

DISEASE REACTION: moderately resistant to Common Bunt (Tilletia laevis, Tilletia tritici)

Origin & Breeding History: 'AAC Prevail' (experimental designation 'BW462') originated from the cross '99B60-EJ26'/'Somerset' conducted at the Cereal Research Centre of Agriculture and Agri-Food Canada in 2004. In 2005, from the resultant 605 progeny, doubled haploids were created. In 2006-2007, plants were grown in rows at the winter nursery near Leeston, New Zealand. Selection criteria included height, lodging, maturity, and leaf and stem rust resistance, Fusarium head blight resistance and well as bread making quality attributes. From 2007 to 2009, yield tests and selections for agronomic characteristics was conducted. In 2010, 'BW462' was included in the Central Bread Wheat Committee registration test.

Tests & Trials: The comparative tests and trials for 'AAC Prevail' were conducted during the 2013 and 2014 growing seasons. Plots consisted of four replications organized in a randomized complete block design with each plot consisting of 5 rows with a row length of 2.98 m and a row spacing of 18 cm.

Click on image for larger view
AAC Prevail
Wheat: 'AAC Prevail' (right) with reference varieties 'CDC Utmost' (left) and 'Shaw' (centre)

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