Glenn

Wheat

Variety Description

Varieties used for comparison: 'Steele', 'Alsen', 'AC Superb' and 'AC Barrie'

Summary: 'Glenn' heads earlier, matures later and has a much higher test weight than the reference varieties. 'Glenn' has a shorter flag leaf than 'Steele' and 'Alsen' and a narrower flag leaf than all of the reference varieties. The pubescence of the sheaths of the lower leaves is stronger for 'Glenn' than 'Steele', 'Alsen' and 'AC Barrie' while the pubescence of the blades of the lower leaves is stronger for 'Glenn' than all of the reference varieties. 'Glenn' has a higher frequency of plants with recurved flag leaves compared to 'Steele', 'AC Superb' and 'AC Barrie'. The glaucosity of the culm neck is weaker for 'Glenn' than the reference varieties. 'Glenn' is taller and has a shorter glume beak than 'Steele', 'Alsen' and 'AC Superb'. The spike density is more lax for 'Glenn' than the reference varieties. The glaucosity of the spike is weaker for 'Glenn' than 'Alsen', 'AC Superb' and 'AC Barrie'. 'Glenn' has a more elevated shoulder shape of the lower glume than the reference varieties.

Description:

YOUNG PLANT (4 leaf stage): strong pubescence of sheaths and moderate pubescence of lower leaf blades
PLANT: spring type, erect growth habit, medium to high tendency of recurved flag leaves
STEM AT MATURITY: thin pith in cross-section, no anthocyanin colouration
CULM NECK: weak glaucosity, moderate curvature

FLAG LEAF: glabrous on upper side
FLAG LEAF SHEATH: glabrous, strong glaucosity
FLAG LEAF AURICLES: very weak anthocyanin colouration

SPIKE: parallel sided, lax density, erect attitude at maturity, weak to medium glaucosity, white at maturity, dense hairiness of convex surface of apical rachis segment
AWNS: white, short to medium at tip of spike, moderately spreading
LOWER GLUME: narrow to medium width, short to medium length, glabrous, straight to elevated shoulder shape, medium to broad width shoulder, slightly curved beak shape, very short to short beak length, very sparse exent of internal hairs
LEMMA: straight beak
KERNEL: hard red type, medium red, oval, small to medium size, short to midlong, narrow to midwide, angular cheek shape, short brush hairs, narrow crease, mid-deep crease
GERM: small to midsize, broad elliptical

RESISTANCE TO DISEASE: Leaf Rust (Puccinia triticina)

Origin & Breeding History: 'Glenn' originated from the cross 'ND 2831' / 'Steele-ND', which was made at North Dakota State University (NDSU) in the fall of 1997. 'Glenn' was developed using modified pedigree and bulk methods and was observed for nine crop cycles. Selection criteria for the breeding of 'Glenn' wheat were highly heritable traits (i.e., plant vigor and height, maturity, and pest resistance) in early segregating generations F2 - F4. For the F4 - F6 generations, selection criteria also included Fusarium Head Blight (FHB) (Scab) resistance, grain yield, lodging resistance, shattering resistance, grain volume and kernel weights, and milling and bread making characteristics. Data used to evaluate line ND 747 (re-selection from ND 736) that is named 'Glenn' were collected from numerous locations across the years. Overall, 'Glenn' was selected, particularly for its high yield, very good milling and baking traits as well as disease resistance.

Tests & Trials: Trials for 'Glenn' were conducted during 2006 at Portage La Prairie, Manitoba. A 2 replicate design was planted using 1.5 x 6 metre plots, seeded at a rate of 275 plants/square metre. Measured characteristics were based on 1 year of data, with 40 measurements taken. Results were supported by the official technical examination report purchased from the Plant Variety Protection Office in the U.S.A.

Comparison tables for 'Glenn' with reference varieties 'Steele', 'Alsen', 'AC Superb' and 'AC Barrie'

Flag leaf length (cm)

Flag leaf width (mm)

Plant height at heading (cm)

Test weight

Click on image for larger view

Wheat: 'Glenn' (left) with reference varieties 'Steele' (centre left), 'Alsen' (centre), 'AC Superb' (centre right) and 'AC Barrie' (right)