Emerson
Denomination: | 'Emerson' |
---|---|
Botanical Name: | Triticum aestivum |
Applicant/Holder: |
Agriculture & Agri-Food Canada, Lethbridge Lethbridge Research Centre, 5403 - 1 Avenue, South P.O. Box 3000 Lethbridge, Alberta T1J 4B1 Canada |
Breeder: |
Robert Graf, Agriculture & Agri-Food Canada, Lethbridge, Alberta |
Agent in Canada: |
Agriculture & Agri-Food Canada Office of Intellectual Property and Commercialization 107 Science Place Saskatoon, Saskatchewan S7N 0X2 Canada Tel: (306) 203-1383 |
Application Date: | 2011-06-07 |
Application Number: | 11-7301 |
Grant of Rights Date: | 2014-11-19 |
Certificate Number: | 4951 |
Grant of Rights Termination Date: | 2032-11-19 |
Variety Description
Varieties used for comparison: 'CDC Falcon', 'CDC Raptor' and 'CDC Osprey'
Summary: The flag leaves of 'Emerson' are longer than those of 'CDC Falcon' and 'CDC Raptor'. The frequency of plants with recurved flag leaves on 'Emerson' is high to very high whereas the frequency is medium on 'CDC Falcon' and medium to high on 'CDC Raptor'. At maturity, the plants of 'Emerson' are taller than those of 'CDC Falcon' and shorter than those of 'CDC Osprey'. The spike of 'Emerson' is longer than that of 'CDC Falcon' and 'CDC Raptor'. 'Emerson' is resistant to Fusarium Head Blight (Fusarium graminearum, Fusarium species) whereas 'CDC Falcon' is susceptible to highly susceptible and 'CDC Osprey' is moderately resistant to moderately susceptible.
Description:
PLANT: winter type, semi-erect to intermediate growth habit at the 5 to 9 tiller stage, heads emerge early to mid-season, matures mid-season
SEEDLING: absent or very weak intensity of anthocyanin colouration of coleoptile, glabrous lower leaf sheaths and blades
FLAG LEAF: medium length, high to very high frequency of plants with recurved/drooping flag leaves, weak anthocyanin colouration of auricles, medium to strong glaucosity of sheath, glabrous blade and sheath
CULM NECK: weak to medium glaucosity, very slight curvature
STRAW: hollow in cross section, yellow with no anthocyanin colouration at maturity
SPIKE: absent or very weak glaucosity, tapering shape, medium density, yellow at maturity, inclined to nodding attitude at maturity, absent or very sparse hairiness of convex surface of apical rachis segment
AWNS: shorter than length of spike, light yellow
LOWER GLUME: long, narrow to medium width, glabrous to very slightly pubescent, medium extent of internal hairs
LOWER GLUME SHOULDER: narrow, oblique shape
LOWER GLUME BEAK: medium length, acuminate
KERNEL: hard red type, medium red colour, brown to black reaction to phenol
AGRONOMIC CHARACTERISTICS: good resistance to shattering, good to very good resistance to lodging, fair to good winter hardiness
QUALITY CHARACTERISTICS: good bread making quality
DISEASE REACTION: resistant to Fusarium Head Blight (Fusarium graminearum, Fusarium species), Stem Rust (Puccinia graminis f. sp. tritici) and Stripe Rust (Puccinia striiformis); resistant to moderately resistant to Leaf Rust (Puccinia triticina); moderately susceptible to Powdery Mildew (Erysiphe graminis f. sp. tritici) and highly susceptible to Common Bunt (Tilletia caries, Tilletia foetida)
Origin & Breeding History: 'Emerson' (experimental designation W454) is derived from the cross 'McClintock' x 'CDC Osprey' made in 2000 at the Agriculture and Agri-Food Canada Lethbridge Research Centre, Lethbridge, Alberta. The maize hybridization technique was used to produce F1-derived doubled haploid lines in 2001. Initial row evaluation took place in 2003 in which selection based on winter survival, plant type and vigour, straw strength, plant height, protein content, test weight and Sodium Dodecyl Sulfate sedimentation volume. Stem and Leaf Rust resistance was evaluated from 2004 to 2007 in Winnipeg, Manitoba. Based on the resistance to Stem and Leaf Rust in 2004, a line designated LF1313 was evaluated in an irrigated, single replicate preliminary agronomic trial at Lethbridge in 2005. Following pre-registration testing across western Canada, LF1313 was evaluated as W454 in the Western Winter Wheat Cooperative Registration Trial from 2008 to 2010.
Tests & Trials: Tests and trials were conducted in 2012 and 2013 in Lethbridge, Alberta. Plots consisted of 4 rows per plot with a row length of 3.5 metres and a row spacing of 23 cm. There were 4 replicates arranged in a RCB design. Measured characteristics were based on a minimum of 21 measurements per year.
Comparison tables for 'Emerson' with reference varieties 'CDC Falcon', 'CDC Raptor' and 'CDC Osprey'
Flag leaf length (cm)
'Emerson' | 'CDC Falcon' | 'CDC Raptor' | 'CDC Osprey' | |
---|---|---|---|---|
mean 2012 | 21.1 | 17.1 | 18.5 | 19.6 |
std. deviation 2012 | 2.5 | 1.8 | 2.7 | 3.1 |
mean 2013 | 25.2 | 20.5 | 21.8 | 23.7 |
std. deviation 2013 | 2.6 | 3.1 | 3.0 | 3.1 |
Plant height at maturity (cm) - excluding awns
'Emerson' | 'CDC Falcon' | 'CDC Raptor' | 'CDC Osprey' | |
---|---|---|---|---|
mean | 88 | 77 | 88 | 97 |
Spike length (mm)
'Emerson' | 'CDC Falcon' | 'CDC Raptor' | 'CDC Osprey' | |
---|---|---|---|---|
mean 2012 | 98.3 | 91.4 | 95.3 | 93.7 |
std. deviation 2012 | 4.0 | 3.9 | 6.1 | 6.7 |
mean 2013 | 100.2 | 93.8 | 97.6 | 98.4 |
std. deviation 2013 | 6.3 | 6.4 | 6.5 | 7.8 |
Click on image for larger view
Wheat: 'Emerson' (right) with reference varieties 'CDC Falcon' (left), 'CDC Osprey' (centre left) and 'CDC Raptor' (centre)
Click on image for larger view
Wheat: 'Emerson' (bottom left) with reference varieties 'CDC Osprey' (top left), 'CDC Falcon' (top centre) and 'CDC Raptor' (top right)
- Date modified: