KWS Trebiano
| Denomination: | 'KWS Trebiano' |
|---|---|
| Botanical Name: | Secale cereale |
| Applicant/Holder: |
KWS LOCHOW GMBH Ferdinand-von-Lochow-Str. 5 Bergen 29303 Germany |
| Breeder: |
KWS LOCHOW GMBH, Bergen, Germany |
| Agent in Canada: |
FP Genetics Inc. 426 McDonald Street Regina, Saskatchewan S4N 6E1 Canada Tel: 306-791-1045 |
| Application Date: | 2020-08-25 |
| Provisional Protection:: | 2020-08-25 |
| Application Number: | 20-10337 |
Variety Description
Varieties used for comparison: 'KWS Daniello', 'KWS Propower' and 'KWS Serafino'
Summary: The first leaf blade of 'KWS Trebiano' is longer and narrower than those of 'KWS Daniello' and 'KWS Propower'. The pubescence on the upper surface of the first leaf of 'KWS Trebiano' is medium to dense whereas it is sparse for 'KWS Propower' and of a sparse to medium density for 'KWS Daniello'. The upper third of the flag leaf sheath of 'KWS Trebiano' has a strong degree of glaucosity whereas that of 'KWS Serafino' has a medium degree of glaucosity. Below the spike, the pubescence on the stem of 'KWS Trebiano' is medium to dense whereas the pubescence is absent or very sparse to sparse on the stem of 'KWS Serafino'. At maturity, the plants of 'KWS Trebiano' are taller than the plants of 'KWS Daniello'. The stem between the upper node and spike is shorter for 'KWS Trebiano' than that of 'KWS Daniello' and longer than that of 'KWS Serafino'. 'KWS Trebiano' has a shorter spike than 'KWS Daniello' and 'KWS Serafino'. The kernel weight of 'KWS Trebiano' is greater than that of 'KWS Daniello' and 'KWS Serafino'.
Description:
PLANT: winter type, diploid, intermediate to semi-prostrate growth habit at 5 to 9 tiller stage, medium tillering capacity, heads emerge mid-season
COLEOPTILE: medium to long, medium intensity of anthocyanin colouration
FIRST LEAF: medium length sheath, medium to dense pubescence of upper surface
STEM: medium to dense pubescence below spike, anthocyanin colouration present in uppermost node at maturity, thin pith in cross-section
FOLIAGE: medium green
FLAG LEAF: twisted attitude, strong degree of glaucosity on upper third of sheath during inflorescence emergence, anthocyanin colouration of auricles present
SPIKE: medium degree of glaucosity during milk development, fusiform, dense to very dense, horizontal attitude at maturity
LEMMA AWNS: present, weak intensity of anthocyanin colouration, barbed margin
KERNEL: medium length, dark aleurone layer, elliptical
AGRONOMIC TRAIT: good lodging resistance, good winter survival
Origin & Breeding History: 'KWS Trebiano' (experimental designations KWS-H166 and RT240) originated from a 3-way cross conducted in Monselice, Italy in 2015. The first cross between the lines Lo1019-P and Lo1059-N resulted in the cytoplasmic male sterile female inbred line, which was subsequently crossed with the restorer synthetic line LSR135. The resulting hybrid variety was designated as 'KWS Trebiano' and tested in official trials in Germany, Poland and Denmark between 2016 and 2018. Certified seed was first produced in Germany in 2018. The selection criteria included standability, disease resistance, yield and thousand kernel weight.
Tests & Trials: The comparative trial for 'KWS Trebiano' was conducted in Avonlea, Saskatchewan in 2022. The field trial was sown in the previous fall season and arranged in a RCB design with 4 replicates per variety. Each plot measured 9 square metres and consisted of 6 rows, each row 6 metres long with a row spacing of 25 cm. The seeding density was approximately 200 plants per square metre, resulting in a minimum of 7200 plants per variety per year. The measured characteristics were based on a 60 measurements per variety, except for the kernel weight, which was based on 12 measurements per variety. Additional testing was conducted in a controlled environment to observe the coleoptile and first leaf characteristics. Mean differences were significant at the 5% probability level based on LSD values. Results were supported by the UPOV report of Technical Examination, application number RR 11486, purchased from the Research Centre for Cultivar Testing in Slupia Wielka, Poland. The trials were conducted by the Research Centre for Cultivar Testing in both Slupi Wielkiej and Zybiszowie, Poland from 2015 to 2017.
Comparison tables for 'KWS Trebiano' with reference varieties 'KWS Daniello', 'KWS Propower' and 'KWS Serafino'
First leaf length of blade (cm)
| 'KWS Trebiano' | 'KWS Daniello' | 'KWS Propower' | 'KWS Serafino' | |
|---|---|---|---|---|
| mean (LSD=0.58) | 13.2 | 11.9 | 10.2 | 12.9 |
| std. deviation | 1.47 | 1.45 | 2.49 | 1.16 |
First leaf width of blade (cm)
| 'KWS Trebiano' | 'KWS Daniello' | 'KWS Propower' | 'KWS Serafino' | |
|---|---|---|---|---|
| mean (LSD=0.15) | 3.4 | 3.8 | 3.8 | 3.5 |
| std. deviation | 0.37 | 0.46 | 0.51 | 0.39 |
Plant height at maturity (stem plus spike, including awns) (cm)
| 'KWS Trebiano' | 'KWS Daniello' | 'KWS Propower' | 'KWS Serafino' | |
|---|---|---|---|---|
| mean (LSD=2.37) | 97.5 | 92.1 | 98.5 | 95.1 |
| std. deviation | 7.43 | 5.61 | 7.22 | 5.99 |
Stem length between upper node and spike (cm)
| 'KWS Trebiano' | 'KWS Daniello' | 'KWS Propower' | 'KWS Serafino' | |
|---|---|---|---|---|
| mean (LSD=1.35) | 29.3 | 30.7 | 29.2 | 27.6 |
| std. deviation | 3.50 | 3.64 | 4.19 | 3.67 |
Spike length (without awns) (cm)
| 'KWS Trebiano' | 'KWS Daniello' | 'KWS Propower' | 'KWS Serafino' | |
|---|---|---|---|---|
| mean (LSD=0.42) | 8.4 | 9.7 | 8.8 | 9.3 |
| std. deviation | 1.01 | 1.29 | 1.25 | 1.02 |
Kernel weight (grams per 1000 kernels) (g)
| 'KWS Trebiano' | 'KWS Daniello' | 'KWS Propower' | 'KWS Serafino' | |
|---|---|---|---|---|
| mean (LSD=0.63) | 31.9 | 30.5 | 31.7 | 30.9 |
| std. deviation | 0.82 | 0.84 | 0.74 | 0.74 |
Click on image for larger view
Rye: 'KWS Trebiano' (right) with reference varieties 'KWS Serafino' (centre) and 'KWS Daniello' (left)
Click on image for larger view
Rye: 'KWS Trebiano' (centre) with reference varieties 'KWS Serafino' (left) and 'KWS Daniello' (right)
- Date modified: