CDC Abound

Wheat

Variety Description

Varieties used for comparison: 'AC Barrie', 'Superb' and 'CDC Imagine'

Summary: 'CDC Abound' has stronger anthocyanin colouration of the flag leaf auricles than 'AC Barrie' and 'CDC Imagine'. The spike of 'CDC Abound' is tapering while it is parallel sided in 'AC Barrie' and 'CDC Imagine'. 'CDC Abound' has an awned spike while it is apically awnletted in 'AC Barrie' and 'CDC Imagine'. The brush hairs on the kernel of 'CDC Abound' are shorter than in 'CDC Imagine'. 'CDC Abound' has a round shaped embryo while it is oval shaped in the reference varieties. The plant height of 'CDC Abound' is shorter than 'AC Barrie' and slightly shorter than 'Superb' and 'CDC Imagine'. 'CDC Abound' and 'CDC Imagine' are resistant to Imidazolinine herbicides (Imazamox) while 'AC Barrie' and 'Superb' are not.

Description:

PLANT: spring type, erect to semi-erect growth habit, glabrous upper internode
SEEDLING: absent or very weak intensity of anthocyanin colouration of coleoptile, absent or very weak pubescence on lower leaf sheaths, absent or very weak pubescence on lower leaf blades

FLAG LEAF: medium green, medium frequency of plants with recurved/drooping flag leaves, glabrous blades and sheaths, strong anthocyanin colouration of auricles, weak pubescence of margins or auricles, weak glaucosity of sheath, horizontal to erect attitude

CULM NECK: weak glaucosity, very weak to weak curvature
STRAW: hollow pith in cross section, no anthocyanin colouration at maturity

SPIKE: tapering shape, medium density, erect and white at maturity, very weak to weak glaucosity, white awns present, awns equal in length to spike, strong to very strong spreading awn attitude, sparse hairiness of convex surface of apical segment, no supernumary spikelets
LOWER GLUME: medium width, medium length, absent to very weak pubescence, slightly sloping to straight shape of shoulder, medium shoulder width, straight to slightly curved beak, short to medium length beak, sparse internal hairs, absent to small internal imprint
LEMMA: straight beak

KERNEL: hard red type, medium red colour, medium sized kernel, midlong, midwide, broad elliptical shape, slightly angular to angular cheek shape, short brush hairs, medium sized brush, medium sized germ, round shape of germ, midwide and shallow to mid-deep crease, brown colour reaction to phenol

DISEASE RESISTANCE: highly susceptible to Fusarium head blight (Fusarium graminearum Fusarium species) and Leaf rust (Puccinia triticina), moderately resistant to moderately susceptible to Loose smut (Ustilago tritici) and resistant to stem rust (Puccinia graminis F. sp. tritici)

QUALITY: good bread making

HERBICIDE REACTION: resistant to imazamox

Origin & Breeding History: 'CDC Abound' originated from the cross Superb*2/BW755 made in 1998 at the University of Saskatchewan, Saskatoon, Saskatchewan. BW755 = Grandin*3/Fidel-FS2 and is the donor of the Imidazolinone tolerance gene carried by 'CDC Abound'. 'CDC Abound' was tested as BW824 and is a doubled haploid line. The herbicide Imazamox was used as the selection agent for BW824 in field plots in 2000 and 2001. BW824 was evaluated as IR01013 in yield trials in 2001 and in the Western Bread Wheat 'B' test in 2002. BW824 was subsequently evaluated in the Western Bread Wheat Cooperative Test from 2003 to 2005.

Tests & Trials: Test and trials were conducted during the summers of 2006 and 2007 in Saskatoon, Saskatchewan. Plots consisted of 5 rows with a row spacing of 20.3 cm and a row length of 3.6 meters. There were 4 replicates arranged in a Randomized Complete Block design.

Comparison table for 'CDC Abound' with reference varieties 'AC Barrie', 'Superb' and 'CDC Imagine'

Plant height (cm)

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Wheat: 'CDC Abound' (BW824) (right) with reference varieties 'Superb' (far left), 'CDC Imagine' (centre left) and 'AC Barrie' (centre right)

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Wheat: 'CDC Abound' (BW824) (left) with reference varieties 'AC Barrie' (centre left), 'Superb' (centre right) and 'CDC Imagine' (right)