SY Natron

Wheat

Variety Description

Variety used for comparison: 'Glenn'

Summary: The intensity of anthocyanin colouration on the coleoptile of 'SY Natron' is strong whereas it is absent or very weak to weak on the coleoptile of 'Glenn'. At booting, the flag leaf of 'SY Natron' is wider than that of 'Glenn'. The plants of 'SY Natron' head later than the plants of 'Glenn'. At heading, the glaucosity on the spike and culm neck of 'SY Natron' is strong to very strong whereas for 'Glenn', the glaucosity is weak on the spike and weak to medium on the culm neck. At maturity, the plants of 'SY Natron' are taller than the plants of 'Glenn'. At maturity, anthocyanin colouration on the straw is present for 'SY Natron' whereas it is absent for 'Glenn'. The thousand kernel weight for 'SY Natron' is less than that of 'Glenn'. The shape of the kernel of 'SY Natron' is elliptical whereas it is broad elliptical for 'Glenn'.

Description:

PLANT: spring type, common wheat, erect growth habit at 5 to 9 tiller stage, low to medium frequency of plants with recurved flag leaves, heads mid-season, matures mid-season

SEEDLING (4 LEAF STAGE): strong intensity of anthocyanin colouration of the coleoptile, glabrous sheath and blade of lower leaves

FLAG LEAF: absent or very weak intensity of anthocyanin colouration of auricles, absent or very weak to weak glaucosity of sheath, glabrous blade and sheath

CULM: strong glaucosity, slightly curved neck
STRAW: thin pith in cross-section, anthocyanin colouration present at maturity

SPIKE: strong to very strong glaucosity at heading, tapering, medium to dense, light brown at maturity, erect attitude, sparse hairiness of convex surface of apical rachis segment
AWNS: shorter than length of spike, light brown
LOWER GLUME SHOULDER: medium to broad, elevated shape
LOWER GLUME: medium length, medium to wide, glabrous, sparse extent of internal hair
LOWER GLUME BEAK: short, slightly curved shape
LOWEST LEMMA: slightly curved beak

KERNEL: hard red, medium red, medium to large, medium to long, narrow to medium width, elliptical shape, angular cheek, short to medium length brush hairs, narrow crease, shallow to medium depth of crease
GERM: small to medium, oval

BREAD MAKING QUALITY: good

Origin & Breeding History: 'SY Natron' (experimental designations BW1064 and CS112000252-8) originated from the cross 'BW919' and 'Mckenzie' made in Berthoud, Colorado, USA, in 2011. Individual head selections were made from the F2 population at Syngenta Canada Inc. in Rosebank, Manitoba, in 2012, based on height, maturity, disease reaction, protein content and overall worth. Single seed descent technique was used to advance these selections through the F3 and F4 generations in a greenhouse. In 2013, F5 headrows were selected and individually bulked from a nursery and entered into a yield trial in Rosebank, Manitoba in 2014. One of the selections was designated as CS112000252-8 and sent to a winter nursery in New Zealand for generation advancement in 2014. The resulting F8 was entered in Syngenta Canada, Inc. multi-location research plots in 2015. In 2015, 100 heads were selected for initial purity from the F9 increase plots, based on yield, test weight, height, maturity, comprehensive quality and disease reaction. In 2016, 100 progeny rows were planted in Rosebank, Manitoba and progeny plots subsequently planted in Berthoud, Colorado in 2017. In 2018, the 100 progeny rows were selected based on agronomy, pathology and quality assessment and bulked for breeder seed. The variety was tested as BW1064 in the Central Bread Wheat Co-op during the 2016 to 2018 growing seasons.

Tests & Trials: The comparative trials for 'SY Natron' were conducted during the 2018 and 2019 growing seasons near Rosebank, Manitoba. Plots consisted of three replications arranged in a RCB design with each plot consisting of 7 rows with a row length of 3 metres and row spacing of 18 cm. 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 'SY Natron' with reference variety 'Glenn'

Flag leaf width (cm)

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

Plant height at maturity (stem plus spike, including awns) (cm)

Kernel weight (grams per 1000 kernels) (g)

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Wheat: 'SY Natron' (left) with reference variety 'Glenn' (right)

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Wheat: 'SY Natron' (left) with reference variety 'Glenn' (right)