Jake

Wheat

Variety Description

Varieties used for comparison: 'McKenzie', 'Go Early' and 'Alsen'

Summary: The intensity of anthocyanin colouration of the coleoptile is absent or very weak on 'Jake' while it is strong on 'McKenzie' and 'Alsen'. At booting, the flag leaf of 'Jake' is longer and wider than that of 'McKenzie' and shorter and narrower than the flag leaf of 'Alsen'. At maturity, the plants of 'Jake' are shorter than those of the reference varieties. In cross section, the straw pith is very thin for 'Jake' while it is thick for 'McKenzie'. The spike for 'Jake' is fusiform in profile while it is tapering in profile for 'Go Early'. The spike of 'Jake' is longer than that of 'McKenzie'. The plants of 'Jake' mature early in the season while the plants of 'Alsen' mature mid-season. At maturity, the straw for 'Jake' has no anthocyanin colouration while the straw of 'McKenzie' has anthocyanin colouration present. The thousand kernel weight for 'Jake' is less than that of 'Go Early'. The germ for 'Jake' is of a medium size while it is small for 'McKenzie' and 'Alsen'.

Description:

PLANT: common hard red spring wheat, erect to semi-erect growth habit at the 5 to 9 tiller stage, heads and matures early in 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 glaucosity of sheath, glabrous blade and sheath

CULM NECK: absent or very weak to weak glaucosity, straight
STRAW (AT MATURITY): very thin pith in cross-section, no anthocyanin colouration

SPIKE: weak to medium glaucosity at heading, fusiform in profile, medium density, white at maturity, erect attitude
AWNS: shorter than length of spike, white at maturity
LOWER GLUME: medium length and width, glabrous
LOWER GLUME SHOULDER: narrow to medium, predominantly straight
LOWER GLUME BEAK: short to medium, moderately curved
LOWEST LEMMA: straight to slightly curved beak

KERNEL: medium red, small to medium sized, short to medium length, narrow to medium width, oval, rounded cheek, short to medium brush hairs, narrow to medium crease, crease of shallow to medium depth
GERM: medium sized, oval

DISEASE REACTION: resistant to Leaf Rust (Puccinia triticina), Stripe Rust (Puccinia striiformis) and Stem Rust (Puccinia graminis f. sp. tritici), resistant to moderately resistant to Common Bunt (Tilletia caries, T. foetida), moderately susceptible to susceptible to Fusarium head blight (Fusarium graminearum, Fusarium species)

Origin & Breeding History: 'Jake' (experimental designations PT782 and UAW1002*F6MBK05) originated from the cross between PT764 and 'CDC Stanley' made in 2009-2010 at the University of Alberta in Edmonton, Alberta. It was developed using a modified bulk breeding method. The F1 seed was planted in a greenhouse and the resulting F2 seed was field planted in single rows in Edmonton in 2010. The rows were harvested, bulked and 25 grams of the F3 seed planted in single rows in New Zealand in the 2010-2011 growing season. Resulting plants were selected based on plant height, maturity and disease resistance and 200 heads harvested, bulked and planted as F4 in long rows in Edmonton. In 2010-2011, 70 heads were selected from the F4 plants, based on plant height, maturity and disease resistance and planted as F5 head rows in New Zealand. In 2012, 44 head rows were selected based on plant type, lodging, maturity and disease resistance and tested in unreplicated preliminary yield trials under organic management in Edmonton and disease nurseries in Edmonton and Lethbridge in 2012. The line designated UAW1002*F6MBK05 was selected on the basis of agronomic, disease and end-use quality and further evaluated in replicated multi-location advanced yield trials in Edmonton in 2013 and in Parkland Cooperative B test in 2014. It was further evaluated as PT782 in the Parkland Cooperative Registration Test from 2015 to 2017.

Tests & Trials: The comparative trials for 'Jake' 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 60 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 'Jake' with reference varieties 'McKenzie', 'Go Early' and 'Alsen'

Flag leaf length (cm)

Flag leaf width (mm)

Plant height (at maturity) (including awns) (cm)

Spike length (cm)

Kernel weight (grams per 1000 kernels)

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Wheat: 'Jake' (left) with reference varieties 'Alsen' (centre left), 'McKenzie' (centre right) and 'Go Early' (right)

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Wheat: 'Jake' (centre) with reference varieties 'McKenzie' (left) and 'Alsen' (right)

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Wheat: 'Jake' (centre left) with reference varieties 'Go Early' (left), 'Alsen' (centre right) and 'McKenzie' (right)