6PWEF05B

Wheat

Variety Description

Variety used for comparison: '25R47'

Summary: At booting, '6PWEF05B' has an absent or very low to low frequency of plants with recurved flag leaves while '25R47' has medium to high frequency of plants with recurved flag leaves. The flag leaf auricles of '6PWEF05B' have a medium intensity of anthocyanin colouration while those of '25R47' have a strong intensity of anthocyanin colouration. The flag leaf sheath of '6PWEF05B' has weak glaucosity while the flag leaf sheath of '25R47' has a medium degree of glaucosity. At heading, the spike of '6PWEF05B' is awnletted with white awnlets while the spike of '25R47' has light brown awns. The spike of '6PWEF05B' has an erect attitude while that of '25R47' has an inclined attitude.

Description:

PLANT: common wheat, winter type, semi-erect to intermediate growth habit at 5 to 9 tiller stage, absent or very low to low frequency of plants with recurved flag leaves, heads emerge mid-season

SEEDLING (4 LEAF STAGE): glabrous sheath and blade of lower leaves

FLAG LEAF: medium intensity of anthocyanin colouration of auricles, weak glaucosity of sheath

CULM: weak to medium degree of glaucosity at heading
STRAW (AT MATURITY): thin pith in cross-section

SPIKE: absent or very weak glaucosity at heading, parallel to semi-clavate in profile, medium to dense, white at maturity, erect attitude
AWNLETS: shorter than or equal to length of spike, white at maturity

KERNEL: soft red type, amber

Origin & Breeding History: ‘6PWEF05B' (experimental designation 6035CR32-01) was developed using the pedigree method of plant breeding. The variety resulted from a three-way cross between two proprietary lines and the variety '25R50' conducted at Pioneer Hi-Bred International, Inc. in Windfall, Indiana, USA in 2011. The variety was advanced in Windfall, Indiana based on grain yield, test weight, maturity, disease resistance, plant type, plant height, head type, straw strength as well as milling and baking characteristics with one F6 line designated as 6035CR32-01 in 2017. Breeder seed was established at the F8 generation in 2019.

Tests & Trials: The comparative trials for ‘6PWEF05B' were conducted at Pioneer Hi-Bred Production Limited in Caledon, Ontario during the 2022 and 2023 growing seasons. There were 3 replicates arranged in an RCB design. Each plot consisted of 6 rows, each row measuring 3.2 metres long, with an inter-row spacing of 30 cm. The planting density resulted in 7800 plants per variety per year. Measured characteristics were based on 24 measurements per variety per year.

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Wheat: ‘6PWEF05B' (left) with reference variety ‘25R47' (right)

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Wheat: ‘6PWEF05B' (left) with reference variety ‘25R47' (right)