AAC Perform

Wheat

Variety Description

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

Summary: At the 5 to 9 tiller stage, the plants of 'AAC Perform' have an erect growth habit while the plants of 'Conquer' have a semi-prostrate growth habit. At booting, the flag leaf auricles of 'AAC Perform' have an absent or very weak intensity of anthocyanin colouration while those of 'Conquer' have a weak intensity of anthocyanin colouration. At heading, the plants of 'AAC Perform' are shorter than those of 'Conquer'. The awns at the tip of the spike of 'AAC Perform' are equal in length to the spike while 'Conquer' has awns that are shorter than the length of the spike. The lower glume shoulder of 'AAC Perform' is narrow while the lower glume shoulder of 'AAC Conquer' is broad. The lower glume shoulder of 'AAC Perform' is sloping while the lower glume shoulder of 'AAC Conquer' is strongly elevated with a second point present and that of '5701PR' is slightly sloping. The lower glume of 'AAC Perform' is narrow while the lower glume of 'Conquer' is of medium width. The lower glume of 'AAC Perform' has a long beak while the lower glume of 'Conquer' has a very short beak and that of '5701PR' has a beak of medium length. The kernel weight of 'AAC Perform' is less than that of the reference varieties.

Description:

PLANT: spring type, common wheat, erect growth habit at 5 to 9 tiller stage, low frequency of plants with recurved flag leaves, heads mid-season, matures mid to late season

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

FLAG LEAF: absent or very weak intensity of anthocyanin colouration of auricles, weak to medium glaucosity of sheath, weak glaucosity of lower side, glabrous blade and sheath

CULM: absent or very sparse hairiness on uppermost node, absent or very weak glaucosity, straight neck
STRAW: pith of medium thickness in cross-section, no anthocyanin colouration at maturity

SPIKE: weak to medium glaucosity at heading, tapering shape in profile, dense, white at maturity, erect attitude, absent or very sparse hairiness of convex surface of apical rachis segment
AWNS: equal to length of spike, white at maturity
LOWER GLUME: medium length, narrow, glabrous, sparse extent of internal hairs
LOWER GLUME SHOULDER: narrow, sloping
LOWER GLUME BEAK: long, straight
LOWEST LEMMA: straight beak

KERNEL: hard red, medium red, large, long, medium width, elliptical, rounded cheek, brush hairs of medium length

GERM: medium sized, broad elliptical, narrow crease of shallow depth

AGRONOMIC TRAITS: good resistance to shattering, fair resistance to pre-harvest sprouting, good bread making quality

DISEASE REACTIONS: resistant to Leaf rust (Puccinia triticina), Stem rust (Puccinia graminis), Stripe rust (Puccinia striiformis); moderately resistant to moderately susceptible to Fusarium head blight (Fusarium graminearum); moderately susceptible to Common bunt (Tilletia sp.)

INSECT REACTION: resistant to Wheat Midge (Sitodiplosis mosellana)

Origin & Breeding History: 'AAC Perform' (experimental designations HY2074 and 16GPB-18) originated from a cross between '5701PR' and 'Faller' with a subsequent backcross to '5701PR' conducted in 2009 at the AAFC Cereal Research Centre in Winnipeg, Manitoba. Twenty nine F1 seeds were planted in a contra-season nursery in Leeston, New Zealand and the resulting F2 seed planted in several bulk plots under disease stress in Portage la Prairie, Manitoba in 2010. Selected F2 plants were bulked and planted in six rows in Palmerston North, New Zealand in 2010-2011 with 318 heads selected and planted in headrows in an early generation disease nursery in Glenlea, Manitoba in 2011. In 2010-2011, 41 F5 rows were planted in New Zealand with 19 lines selected for evaluation in single replicate yield trials at Glenlea and Brandon, Manitoba and Saskatoon, Saskatchewan in 2012. The 19 lines were simultaneously planted in disease nurseries in Glenlea and Portage la Prairie, Manitoba. Five heads were randomly selected from 18 lines and grown as 90 F7 headrows in Palmerston North, New Zealand in 2012-2013. Thirty seven F7:8 lines were screened in yield trials in 2014 in Brandon, Portage la Prairie and Saskatoon with nine F7:9 lines and one F7:10 line selected for evaluation in replicated trials in multiple locations in Alberta, Manitoba and Saskatchewan in 2015 and 2016 respectively. One line designated as16GPB-18 was evaluated in the High Yield Wheat Cooperative Registration trials from 2017 to 2019 as HY2074. Selection criteria included straw strength, maturity, plant height, maturity, kernel appearance, agronomic type, yield, disease resistance and quality traits.

Tests & Trials: The comparative trials for 'AAC Perform' were conducted at the Fairfield Farm, Agriculture and Agri-Food Canada in Lethbridge, Alberta in 2020 and 2021. There were 3 replicates per variety arranged in an RCB design. Plots consisted of 4 rows, each row was 3 metres long with 0.23 metre inter-row spacing. The seeding density was 250 seeds per squared metre, resulting in approximately 2100 plants per variety per year. Measured characteristics were based on 20 measurements per variety per year except kernel weight which was based on 10 measurements per variety per year. Mean differences were significant at the 5% probability level based on a paired Student's t-test.

Comparison tables for 'AAC Perform' with reference varieties 'Conquer' and '5701PR'

Plant height (at maturity, including awns) (cm)

Kernel weight (grams per 1000 seeds)

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Wheat: 'AAC Perform' (top) with reference varieties 'Conquer' (centre) and '5701PR' (bottom)

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Wheat: 'AAC Perform' (left) with reference varieties 'Conquer' (centre) and '5701PR' (right)