Taza

Triticale

Variety Description

Varieties used for comparison: 'Tyndal' and 'Bunker'

Summary: 'Taza' has weak intensity of anthocyanin colouration on the flag leaf auricles whereas it is medium on 'Tyndal'. Flag leaf sheath glaucosity of 'Taza' is medium whereas it is strong on 'Tyndal'. The plants of 'Taza' are taller than those of 'Tyndal'. The straw pith of 'Taza' is medium to thick whereas it is thin to medium in both reference varieties. There is no hairiness on the external surface of the lower glume of 'Taza' whereas it is weak to medium on both reference varieties.

Description:

PLANT: hexaploid, spring type, matures mid-season
COLEOPTILE: absent or very weak anthocyanin colouration
PLANT AT BOOTING: semi-erect growth habit, medium frequency of plants with recurved flag leaves

FLAG LEAF: erect attitude, weak anthocyanin colouration on auricles, medium glaucosity of sheath
NECK OF CULM: weakly curved, medium density of pubescence, medium to thick pith in cross section

SPIKE: medium density, medium glaucosity, white at maturity, medium width
AWNS: tip only, weak anthocyanin colouration
LOWER GLUME: medium length first and second beak, no hairs on external surface
ANTHERS: medium intensity of anthocyanin colouration

KERNEL: tan colour, large size, mid long to long, mid wide to wide, ovate shape, dark phenol reaction

AGRONOMIC TRAITS: good resistance to shattering, good tolerance to drought, low pre-harvest sprouting tendency

REACTION TO DISEASE: susceptible to spot blotch (Cochliobolus sativus), tan spot (Pyrenophora triticirepentis) and Septoria tritici blotch (Septoria tritici), moderately resistant to Septoria nodorum blotch (Septoria nodorum), resistant to powdery mildew (Erysiphe graminis f.sp. tritici), common bunt (Tilletia caries, Tilletia foetida), dwarf bunt (Tilletia controversa), loose smut (Ustilago tritici), leaf rust (Puccinia triticina), stem rust (Puccinia graminis f.sp. tritici) and stripe rust (Puccinia striiformis) and moderately susceptible to Fusarium head blight (Fusarium graminearum)

Origin & Breeding History: 'Taza' (tested in Coop trials as T198) is derived from the cross 93P200/88L012, produced at the Field Crop Development Centre, Lacombe, Alberta in 1994. The F2 to F3 was grown in the field as modified bulks in 1995 and 1996 and subjected to selection for degree of awn reduction and agronomic type. The F4 - F5 generation was handled in a classical pedigree (ear to row) fashion using plant type and degree of awn reduction as the primary selection criteria where T198 was selected for advancement. From 1999 (F6) through 2004 (F11), T198 was evaluated in the yield trial system and in various disease and forage trials. In 2005 (F12), T198 (94L043017) was evaluated in the Spring Triticale B Test and in spring 2006 was entered in the Western Spring Triticale Coop.

Tests & Trials: Trials for 'Taza' were conducted during the summers of 2009, 2010 and 2011 at the Field Crop Development Centre, Lacombe, Alberta. Each plot was replicated 3 times and seeded at a rate of 24 seeds/square foot. Plots consisted of 8 rows, planted at a length of 4.5 metres and cut back to 2.5 metres. The rows were 14 cm apart and plots were 45 cm apart. Measured characteristics were based on a minimum of 12 measurements.

Comparison tables for 'Taza' with reference varieties 'Tyndal' and 'Bunker'

Flag leaf width (mm)

Spike length (cm)

Plant height, including awns (cm)

Click on image for larger view

Triticale: 'Taza' (right) with reference varieties 'Tyndal' (left) and 'Bunker' (centre)