CDC Imbue CLPlus

Wheat

Variety Description

Varieties used for comparison: 'CDC Abound', 'CDC Landmark' and 'AAC Brandon'

Summary: At booting, 'CDC Imbue CLPlus' has a medium to very high frequency of plants with recurved flag leaves whereas 'CDC Abound' has an absent or very low to low frequency of plants with recurved flag leaves. The flag leaf auricles of 'CDC Imbue CLPlus' have an absent or very weak to weak intensity of anthocyanin colouration whereas the flag leaf auricles of 'CDC Abound' have a medium intensity of anthocyanin colouration. The flag leaf of 'CDC Imbue CLPlus' is longer than those of 'CDC Abound' and 'CDC Landmark' and it is wider than that of 'CDC Landmark'. At heading, the glaucosity on the spike of 'CDC Imbue CLPlus' is of a strong to very strong degree whereas the glaucosity on the spike is absent or of a very weak to weak degree for 'CDC Landmark', of a weak degree for 'CDC Abound' and a weak to medium degree for 'AAC Brandon'. The glaucosity on the culm of 'CDC Imbue CLPlus' is of a strong to very strong degree whereas the glaucosity on the culm of 'CDC Abound' and 'CDC Landmark' is of a medium to strong degree and of a weak degree for 'AAC Brandon'. At maturity, the hairiness of the convex surface of the apical rachis segment for 'CDC Imbue CLPlus' is medium to dense whereas it is absent or very sparse for 'CDC Landmark'. The lower glume shoulder of 'CDC Imbue CLPlus' is straight whereas it is strongly elevated with a second point present for 'CDC Landmark' and it is elevated to strongly elevated with a second point present for 'AAC Brandon'.

Description:

PLANT: spring type, common wheat, erect growth habit at 5 to 9 tiller stage, medium to very high frequency of plants with recurved flag leaves, heads early to mid-season

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

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

CULM: strong to very strong glaucosity, curved neck
STRAW (at maturity): thin to medium width pith in cross-section, no anthocyanin colouration

SPIKE: strong to very strong glaucosity at heading, tapering shape in profile, medium density, yellow at maturity, erect attitude, medium to dense hairiness of convex surface of apical rachis segment
AWNS: present, shorter than or equal to spike length, white at maturity
LOWER GLUME: medium length and width, glabrous, medium extent of internal hairs
LOWER GLUME SHOULDER: medium width, straight
LOWER GLUME BEAK: long, slightly to moderately curved
LOWEST LEMMA: straight beak

KERNEL: hard red type, medium red, medium size, medium length and width, ovate shape, rounded cheek shape, medium length brush hairs, crease of medium width and depth
GERM: medium sized

Origin & Breeding History: 'CDC Imbue CLPlus' (experimental designation BW5062) originated from a controlled cross conducted in a greenhouse in Saskatoon, Saskatchewan between the lines BW431 and IR08103 in 2010. From the winter of 2010 to 2012, the F1 to F4 generations were bulked and advanced in a contra nursery in New Zealand or in Saskatoon, Saskatchewan. In 2013 and 2014, the F5 and F6 generations, respectively, were grown as hill plots and were evaluated for plant height and disease reactions in a leaf and stem rust irrigated nursery. A bulked F6 hill was used as a seed source for unreplicated yield testing in 2015. Replicated yield testing occurred in 2016 and 2017. The line designated as BW5062 was further evaluated in the Western Bread Wheat C Cooperative Test from 2018 to 2020. Breeder seed was established at the F12 generation in 2020.

Tests & Trials: The comparative trials for 'CDC Imbue CLPlus' were conducted at the University of Saskatchewan, Crop Science Field Facility during the 2021 and 2022 growing seasons. There were 4 replications per variety arranged in an RCB design. Plots consisted of 5 rows, each row 3.6 metres long with an inter-row spacing of 0.24 metres. Measured characteristics were based on 20 measurements per variety per year, except for kernel weight which was based on 4 measurements per variety per year. Mean differences were significant at the 5% probability level based on LSD values.

Comparison tables for 'CDC Imbue CLPlus' with reference varieties 'CDC Abound', 'CDC Landmark' and 'AAC Brandon'

Flag leaf length (cm)

Flag leaf width (mm)

Thousand kernel weight (grams per 1000 kernels) (g)

Click on image for larger view

Wheat: 'CDC Imbue CLPlus' (left) reference varieties 'CDC Abound' (centre left), 'CDC Landmark' (centre right) and 'AAC Brandon' (right)