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Evora

Wheat

Denomination: 'Evora'
Botanical Name: Triticum aestivum
Applicant/Holder: Céréla inc.
1133 4e rang
St-Hugues, Quebec
J0H 1N0
Canada
Breeder: Eric Gagnon, Céréla inc., St-Hugues, Quebec
Application Date: 2021-10-29
Provisional Protection:: 2021-10-29
Application Number: 21-10738

Variety Description

Varieties used for comparison: 'Maida', 'Atys' and 'Topaze'

Summary: At booting, 'Evora' has a high frequency of plants with recurved flag leaves while 'Maida' and 'Atys' have a low to medium frequency of plants with recurved flag leaves. The flag leaf auricles of 'Evora' have anthocyanin colouration that range between a medium to strong and strong intensity while the auricles of 'Maida' have an absent or very low intensity of anthocyanin colouration and those of 'Atys' range between a low to medium and medium intensity of anthocyanin colouration. The flag leaf of 'Evora' is longer than the flag leaves of 'Maida' and 'Topaze' and wider than those of 'Maida' and 'Atys'. The plants of 'Evora' head later than the plants of 'Maida' and 'Atys'. At heading, the spike, excluding the awns, of 'Evora' is longer than those of the reference varieties. At maturity, the spike of 'Evora' has an erect to inclined attitude while the spike of 'Maida' has a nodding attitude. The culm neck of 'Evora' is straight while that of 'Topaze' is curved. The lower glume beak of 'Evora' is long while that of 'Maida' is medium in length. The lower glume beak of 'Evora' is very slightly to slightly curved while that of 'Topaze' is moderately curved. The 1000 kernel weight of 'Evora' is greater than that of 'Maida' and 'Topaze'.

Description:

PLANT: common wheat, spring type, semi-erect growth habit at 5 to 9 tiller stage, high frequency of plants with recurved flag leaves, heads emerge late in the season

SEEDLING (4 LEAF STAGE): absent or very weak to weak anthocyanin colouration of coleoptile, glabrous sheath and blade of lower leaves

FLAG LEAF: ranging between medium to strong and strong intensity of anthocyanin colouration on auricles, medium to strong glaucosity of sheath

CULM NECK: straight
STRAW (AT MATURITY): thin pith in cross-section, no anthocyanin colouration

SPIKE: weak to medium glaucosity at heading, fusiform shape in profile, ranging between a medium density and medium to dense, white at maturity, erect to inclined attitude, sparse to medium hairiness of convex surface of apical rachis segment
AWNS: equal to spike length, white at maturity
LOWER GLUME: narrow to medium width, long, glabrous, absent or very sparse internal hair
LOWER GLUME SHOULDER: narrow to medium width, slightly sloping to elevated shape
LOWER GLUME BEAK: long, very slightly to slightly curved shape

KERNEL: hard red type, medium red

Origin & Breeding History: 'Evora' (experimental designations CFB2101, CLB08-067,011 and CIM21450) was developed using a pedigree method of breeding. 'Evora' originated from a cross between the line GS-0-EM484 and the variety 'AAC Scotia' conducted in St-Hyacinthe, Quebec in 2007. The variety was advanced from the F1 to F5 generation as a mass population with selections made in each year based on grain density. One F6 line was designated as CLB08-067,011 in 2014. The line was further advanced from 2014 to 2020 based on grain yield, volumetric weight, thousand kernel weight, agronomic characteristics and disease tolerance. Breeder seed was established at the F10 generation in 2019.

Tests & Trials: The comparative trials for 'Evora' were conducted at the Céréla inc. testing site in St. Hugues, Quebec during the 2021 and 2022 growing seasons. There were 2 replicates arranged in an RCB design. Each plot consisted of 5 rows, each 5.0 metres long with an inter-row spacing of 19 cm. The planting density resulted in 3825 plants per variety per year. Measured characteristics were based on 20 measurements per variety per year. Mean differences were significant at the 5% confidence probability level based on a paired Student's t-test.


Comparison tables for 'Evora' with reference varieties 'Maida', 'Atys' and 'Topaze'

Flag leaf length (cm)

  'Evora' 'Maida' 'Atys' 'Topaze'
mean (2021) 17.1 13.1 16.3 13.6
std. deviation (2021) 3.62 2.29 3.07 2.55
mean (2022) 27.8 20.8 24.2 21.6
std. deviation (2022) 2.30 3.03 3.99 3.28

Flag leaf width (mm)

  'Evora' 'Maida' 'Atys' 'Topaze'
mean (2021) 11.9 9.7 9.3 10.6
std. deviation (2021) 1.37 3.41 0.97 1.5
mean (2022) 10.9 9.3 7.8 9.8
std. deviation (2022) 2.49 1.83 2.55 3.02

Days to heading (number of days from planting to when 50% of heads fully emerged from boot)

  'Evora' 'Maida' 'Atys' 'Topaze'
mean (2021) 55 53 52 57
mean (2022) 65 62 58 63

Spike length (excluding awns) (cm)

  'Evora' 'Maida' 'Atys' 'Topaze'
mean (2021) 10.3 8.6 9.0 9.4
std. deviation (2021) 0.92 0.85 1.10 0.70
mean (2022) 9.6 9.0 9.0 9.0
std. deviation (2022) 0.69 0.94 0.83 0.76

Kernel weight (grams per 1000 kernels) (g)

  'Evora' 'Maida' 'Atys' 'Topaze'
mean (2021) 46.1 45.0 44.0 40.8
std. deviation (2021) 0.5 0.7 0.6 0.7
mean (2022) 32.3 31.4 34.9 30.8
std. deviation (2022) 0.5 0.5 0.4 0.4

Click on image for larger view
Evora
Wheat: 'Evora' (left) with reference varieties 'Maida' (centre left), 'Atys' (centre right) and 'Topaze' (right)

Click on image for larger view
Evora
Wheat: 'Evora' (left) with reference varieties 'Maida' (centre left), 'Atys' (centre right) and 'Topaze' (right)

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