Tracker
| Denomination: | 'Tracker' |
|---|---|
| Botanical Name: | Triticum aestivum |
| Applicant/Holder: |
The Governors of the University of Alberta Suite 4000 TEC Centre, 10230 Jasper Avenue Edmonton, Alberta T5J 4P6 Canada |
| Breeder: |
Dean Spaner, University of Alberta, Edmonton, Alberta |
| Application Date: | 2018-06-20 |
| Provisional Protection:: | 2018-06-20 |
| Application Number: | 18-9526 |
| Grant of Rights Date: | 2019-08-09 |
| Certificate Number: | 6007 |
| Grant of Rights Termination Date: | 2039-08-09 |
Variety Description
Varieties used for comparison: 'Peace', 'CDC Stanley' and 'AC Splendor'
Summary: At booting, the flag leaf for 'Tracker' is longer and narrower than that of 'Peace' and 'AC Splendor' and narrower than that of 'CDC Stanley'. At maturity, the plants of 'Tracker' are shorter than those of 'Peace' and 'AC Splendor'. The spike of 'Tracker' is shorter than that of 'CDC Stanley' and longer than the spike of 'AC Splendor'. The plants of 'Tracker' mature early to mid-season while they mature mid-season to late in the season for 'CDC Stanley'. The kernel for 'Tracker' is of medium length while that of 'CDC Stanley' is short. The thousand kernel weight for 'Tracker' is less than that of 'Peace' and 'AC Splendor'.
Description:
PLANT: common hard red spring wheat, erect to semi-erect growth habit at the 5 to 9 tiller stage, heads early to mid-season, matures early to mid-season
SEEDLING: absent or very weak intensity of anthocyanin colouration of coleoptile, glabrous sheath and blade of lower leaves
FLAG LEAF: absent or very weak anthocyanin colouration of auricles, absent or very weak to weak glaucosity of sheath, glabrous blade and sheath
CULM NECK: weak to medium glaucosity, straight
STRAW (AT MATURITY): very thin pith in cross-section, no anthocyanin colouration
SPIKE: absent or very weak to weak glaucosity at heading, parallel sided in profile, medium density, white at maturity, erect attitude
AWNLETS: shorter than length of spike, white at maturity
LOWER GLUME: short to medium length, medium width, glabrous
LOWER GLUME SHOULDER: narrow to medium in width, slightly sloping to straight
LOWER GLUME BEAK: short
LOWEST LEMMA: moderately curved beak
KERNEL: medium red, small to medium sized, medium to long, narrow to medium width, oval, rounded cheek, short to medium brush hairs, narrow to medium crease, crease of medium depth
GERM: small to medium sized, oval
DISEASE REACTION: resistant to Leaf Rust (Puccinia triticina), Stripe Rust (Puccinia striiformis) and Stem Rust (Puccinia graminis f. sp. tritici), moderately resistant to moderately susceptible to Fusarium head blight (Fusarium graminearum, Fusarium species), susceptible to Common Bunt (Tilletia caries,T. foetida)
Origin & Breeding History: 'Tracker' (experimental designations PT785 and UAW1133*009) originated from the cross between 'Peace' and 'CDC Stanley' made in 2011 at the University of Alberta in Edmonton, Alberta. The F1 seed was sent to the Agriculture and Agri-Food Canada Research Centre for Double Haploid Production in Lethbridge, Alberta and the resulting 300 double haploid lines were planted in head rows in New Zealand during the 2012 - 2013 growing season. In 2013, 135 head rows were selected based on plant height, lodging, maturity and disease resistance and tested in replicated preliminary yield trials in Edmonton and Lethbridge and in disease nurseries in Edmonton, Lethbridge and Creston, Alberta. The line designated UAW1133*009 was selected based on agronomic, disease and end-use quality and further evaluated in the Parkland Cooperative B test in 2014. It was further evaluated as PT785 in the Parkland Cooperative Registration Test from 2015 to 2017.
Tests & Trials: The comparative trials for 'Tracker' were conducted during the 2017 and 2018 growing seasons at the University of Alberta in Edmonton, Alberta. The plots were planted in a RCB design and consisted of 3 replicates for each variety. Each 4.5 metres squared plot consisted of 6 rows with rows being 4.5 metres in length and having a row spacing of 0.19 metres. The planting density was 300 plants per square metre. Measured characteristics were based on a minimum of 45 measurements per plant or parts of plants per variety except for the thousand kernel weight where 3 measurements were taken per variety in each year. Mean differences were significant at the 5% probability level based on LSD values.
Comparison tables for 'Tracker' with reference varieties 'Peace', 'CDC Stanley' and 'AC Splendor'
Flag leaf length (cm)
| 'Tracker' | 'Peace' | 'CDC Stanley' | 'AC Splendor' | |
|---|---|---|---|---|
| mean 2017 (LSD=1.0) | 19.9 | 18.4 | 20.1 | 18.1 |
| std. deviation 2017 | 2.7 | 2.5 | 3.0 | 2.3 |
| mean 2018 (LSD=1.0) | 20.8 | 17.3 | 19.2 | 18.6 |
| std deviation 2018 | 2.5 | 3.0 | 2.8 | 2.3 |
Flag leaf width (mm)
| 'Tracker' | 'Peace' | 'CDC Stanley' | 'AC Splendor' | |
|---|---|---|---|---|
| mean 2017 (LSD=0.57) | 13.7 | 16.4 | 16.0 | 15.5 |
| std. deviation 2017 | 1.7 | 1.8 | 1.5 | 2.0 |
| mean 2018 (LSD=0.50) | 11.4 | 13.0 | 12.2 | 12.2 |
| std deviation 2018 | 0.9 | 1.1 | 1.3 | 1.3 |
Plant height (at maturity) (including awnlets) (cm)
| 'Tracker' | 'Peace' | 'CDC Stanley' | 'AC Splendor' | |
|---|---|---|---|---|
| mean 2017 (LSD=0.96) | 90.1 | 93.1 | 89.2 | 95.8 |
| std deviation 2017 | 6.8 | 8.7 | 5.9 | 6.5 |
| mean 2018 (LSD=1.50) | 78.8 | 91.2 | 79.9 | 85.0 |
| std. deviation 2018 | 3.0 | 3.9 | 3.5 | 4.1 |
Spike length (cm)
| 'Tracker' | 'Peace' | 'CDC Stanley' | 'AC Splendor' | |
|---|---|---|---|---|
| mean 2017 (LSD=0.27) | 9.0 | 9.4 | 10.0 | 8.5 |
| std. deviation 2017 | 0.7 | 0.8 | 1.0 | 0.7 |
| mean 2018 (LSD=0.20) | 7.9 | 7.6 | 8.3 | 7.2 |
| std deviation 2018 | 0.5 | 0.6 | 0.6 | 0.5 |
Kernel weight (grams per 1000 kernels)
| 'Tracker' | 'Peace' | 'CDC Stanley' | 'AC Splendor' | |
|---|---|---|---|---|
| mean 2017 (LSD=1.6) | 36.7 | 40.5 | 37.0 | 39.7 |
| std. deviation 2017 | 0.5 | 0.2 | 0 | 0.2 |
| mean 2018 (LSD=1.4) | 35.3 | 39.9 | 35.5 | 38.1 |
| std deviation 2018 | 1.2 | 0.9 | 0.4 | 0.8 |
Click on image for larger view
Wheat: 'Tracker' (left) with reference varieties 'Peace' (centre left), 'CDC Stanley' (centre right) and 'AC Splendor' (right)
Click on image for larger view
Wheat: 'Tracker' (centre left) with reference varieties 'CDC Stanley' (left), 'Peace' (centre right) and 'AC Splendor' (right)
Click on image for larger view
Wheat: 'Tracker' (centre left) with reference varieties 'CDC Stanley' (left), 'Peace' (centre right) and 'AC Splendor' (right)
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