AAC Camrose

Wheat

Variety Description

Varieties used for comparison: 'AAC Foray' and 'AAC Penhold'

Summary: The flag leaf sheath and lower side of the leaf blade of 'AAC Camrose' have strong glaucosity whereas the flag leaf sheath and lower side of the leaf blade of 'AAC Foray' have weak glaucosity and those of ‘AAC Penhold' have a medium degree of glaucosity. At heading, the spike of 'AAC Camrose' has a medium degree of glaucosity whereas that of 'AAC Foray' has weak glaucosity. The culm of 'AAC Camrose' has a medium degree of glaucosity whereas that of 'AAC Foray' has absent or very weak glaucosity. The spike of ‘AAC Camrose' is tapering in profile while the spike of ‘AAC Foray' is parallel sided in profile. At maturity, the plants of 'AAC Camrose' are shorter than the plants of 'AAC Foray' and taller than those of 'AAC Penhold'. The awns of 'AAC Camrose' are longer than the length of the spike while those of 'AAC Penhold' are equal to the length of the spike. The lower glume shoulder of 'AAC Camrose' is narrow while that of ‘AAC Penhold' is of a medium width. The lower glume shoulder shape of 'AAC Camrose' is elevated while the lower glume shoulder shape of ‘AAC Foray' is sloping and that of ‘AAC Penhold' is straight. The lower glume beak of 'AAC Camrose' is very long and slightly curved while those of the reference varieties are very short and straight. The kernel weight of 'AAC Camrose' is less than that of 'AAC Foray'. The crease on the kernel of 'AAC Camrose' is shallow while the crease on the kernel of ‘AAC Foray' is of a medium depth and that of ‘AAC Penhold' is deep.

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-season

SEEDLING (4-LEAF STAGE): absent or very weak anthocyanin colouration of the coleoptile, glabrous sheath and blade of lower leaves

FLAG LEAF (AT BOOTING): weak intensity of anthocyanin colouration of auricles, strong glaucosity of sheath and lower side of leaf blade, glabrous sheath and blade

CULM: absent or very sparse hairiness of uppermost node, medium degree of glaucosity at heading, straight neck
STRAW (AT MATURITY): thin pith in cross-section, anthocyanin colouration absent

SPIKE: medium degree of glaucosity at heading, tapering shape in profile, medium density, erect attitude, white at maturity, absent or very sparse hairiness of convex surface of apical rachis segment
AWNS: longer than spike length, white at maturity
LOWER GLUME: medium oblong in shape, medium length and width, glabrous, sparse external and internal hairs
LOWER GLUME SHOULDER: elevated, narrow
LOWER GLUME BEAK: very long, slightly curved
LOWEST LEMMA: slightly curved beak

KERNEL: hard red type, medium red, large, long, medium width, elliptical shape, rounded cheek, medium length brush hairs, shallow crease of medium width
GERM: medium size, broad elliptical shape

AGRONOMIC TRAITS: good resistance to shattering, good resistance to pre-harvest sprouting

BREAD MAKING QUALITY: good

DISEASE REACTIONS: resistant to Leaf rust (Puccinia triticina), Stem rust (Puccinia graminis), Stripe rust (Puccinia striiformis) and Common bunt (Tilletia tritici and Tilletia laevis); intermediate resistance to Fusarium head blight (Fusarium graminearum)

INSECT REACTION: resistant to Orange Wheat Blossom Midge (Sitodiplosis mosellana)

Origin & Breeding History: 'AAC Camrose' (experimental designations WC21405 and HY2129) originated from a three-way cross between the varieties ‘AAC Foray', ‘AAC Tenacious' and ‘AAC Penhold' conducted at Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre in Lethbridge, Alberta in January of 2014. The variety was advanced to the F8 generation based on plant type, plant height, straw strength, maturity, yield, disease resistances as well as agronomic and quality traits with one F8 line designated WC21405 in 2019. The line was entered in the Canada Prairie Spring wheat A-level test in 2018, advanced to the B-level test in 2019 and was entered in the High Yield Wheat Registration Trial as HY2129 where it was evaluated from 2020-2022. Breeder seed was established from the F13 generation in 2022.

Tests & Trials: The comparative trials for 'AAC Camrose' were conducted at Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre in Lethbridge, Alberta during the 2022 and 2023 growing seasons. There were 3 replicates per variety arranged in an RCB design. Plots consisted of 4 rows, each measuring 3.0 metres in length with 0.23 metres between rows. The planting density of 250 plants per square metre, resulted in approximately 2050 plants per variety per year. Measured characteristics were based on a minimum of 20 measurements per variety per year. Mean differences were significant at the 5% probability level based on Student's t-tests. Disease and insect reaction ratings were provided through the disease evaluation of the High Yield Wheat Registration trials from 2020 to 2022.

Comparison tables for 'AAC Camrose' with reference varieties 'AAC Foray' and 'AAC Penhold'

Plant height at maturity (stem plus spike, including awns) (cm)

Kernel weight (grams per 1000 kernels) (g)

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Wheat: ‘AAC Camrose' (top) with reference varieties ‘AAC Penhold' (centre) and ‘AAC Foray' (bottom)

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Wheat: ‘AAC Camrose' (left) with reference varieties ‘AAC Penhold' (centre) and ‘AAC Foray' (right)