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ORe Level48

Oat

Denomination: 'ORe Level48'
Previously Proposed Denomination: 'OT6021'
Botanical Name: Avena sativa
Applicant/Holder: Oat Advantage
826 Maguire Crescent
Saskatoon, Saskatchewan
S7W 1A4
Canada
Breeder: James Dyck, Oat Advantage, Saskatoon, Saskatchewan
Application Date: 2019-04-18
Provisional Protection:: 2019-04-18
Application Number: 19-9772
Grant of Rights Date: 2022-02-21
Certificate Number: 6559
Grant of Rights Termination Date: 2042-02-21

Variety Description

Varieties used for comparison: 'ORe Level50', 'Leggett' and 'Summit'

Summary: The plants of 'ORe Level48' head later than the plants of 'Summit'. At the green stage, the panicle of 'ORe Level48' is shorter than that of 'ORe Level50'. At maturity, the lower glume of 'ORe Level48' is longer than that of 'Leggett' and 'Summit'.

Description:

PLANT: spring hulled type, erect juvenile growth habit, low frequency of plants with recurved flag leaves at booting

STEM: sparse pubescence above and below the upper culm node

LEAF: medium green, absent or very sparse to sparse pubescence of margin, weak glaucosity

PANICLE: equilateral/symmetrical orientation, medium density, semi-erect attitude of branches, 30 to 45 degree angle between dominant side branch and rachis, few short hairs or spines on lowest node
GLUME: medium glaucosity
SPIKELET: semi-abscission separation, semi-nodding, 2 to 3 grains
RACHILLA: medium length between primary and secondary floret, absent or very short length of grooves, sparse pubescence
LEMMA: medium glaucosity, medium extent of lateral overlap on palea, yellow at maturity, absent or very sparse pubescence on lateral and dorsal surface, absent or very weak tendency to be awned

KERNEL: short basal hairs present, light brown
GROAT: medium density of pubescence
SCUTELLUM: rounded tip, medium size

Origin & Breeding History: 'ORe Level48' (experimental designations 309CM140 and OT6021) originated from the cross made between 'Leggett' (female parent) and 'CDC Minstrel' (male parent) at the Oat Advantage research farm near Saskatoon, Saskatchewan in the fall of 2009. The F1 was grown from January to April 2010 with the F2 grown in bulk in a population plot during the 2010 growing season. Field selection in the F2 was based on plant type, disease resistance and grain quality. The F3 was increased in the growth cabinet in the fall of 2010 as was the F4 in the winter into 2011. The F5 seed was sown at the Saskatoon site and further selected for plant type, agronomic qualities, disease resistance, yield and visual grain quality. Seed from a subset of F5 derived F6 selected plants were sent to New Zealand in the fall of 2011 for increase. In 2012, the top performing lines were tested in yield trials in western Canada. One line, OT6021, arose out of this testing and was entered into the Western Cooperative Oat Registration Trial in 2016 and 2017.

Tests & Trials: The comparative trials for 'ORe Level48' were conducted at the research plots of Oat Advantage near Saskatoon, Saskatchewan during the 2018 and 2019 growing seasons. There were 3 replicates arranged in a RCB design. Plots consisted of 6 rows, with a row length of 3 metres and row spacing of 18 cm. The planting density was 360 plants per metre square. Measured characteristics were based on 20 measurements per variety per year. Mean differences are significant at the 5% probability level based on paired Student's T-tests.


Comparison tables for 'ORe Level48' with reference varieties 'ORe Level50', 'Leggett' and 'Summit'

Days to heading (when 50% of panicles are fully emerged)

  'ORe Level48' 'ORe Level50' 'Leggett' 'Summit'
mean 2018 51 50 51 48
mean 2019 57 55 58 52

Panicle length (cm)

  'ORe Level48' 'ORe Level50' 'Leggett' 'Summit'
mean 2018 11.93 12.71 11.83 11.87
std. deviation 2018 0.86 0.94 0.93 1.36
mean 2019 12.59 14.70 13.41 14.10
std. deviation 2019 1.01 1.60 0.76 1.38

Lower glume length (mm)

  'ORe Level48' 'ORe Level50' 'Leggett' 'Summit'
mean 2018 21.20 23.45 18.3 17.6
std. deviation 2018 0.95 1.39 1.17 0.85
mean 2019 20.95 21.1 19.3 18.0
std. deviation 2019 1.19 1.31 1.34 1.08

Click on image for larger view
ORe Level48
Oat: 'ORe Level48' (right) with reference variety 'Summit' (left)

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