Treixadura (ES) / Trajadura (PT)

Recommended in Portugal: Galicia.

DOC quality wine: all Vinho Verde areas (except Baião)

Regional wine: Minho.

Young shoot (form of tip): Open, fuzzy, white with weak anthocyanin colouration of the end.

Young leaf: Yellow, with bronze and copper spots. Fluffy on the lower side.

Young shoot: Red stripes on the dorsal side of nodes and internodes, green buds. Short tendrils.

Inflorescence (sex of flower): Hermaphrodite.

Mature leaf: Medium size, round, entire or three lobes. Medium green blade, flat, some blistering. Medium and long convex teeth. Open U-shaped petiolar sinus. Sparse prostrate hairs and sparse erect hairs on lower side of blade.

Bunch: Medium to large, cylindrical-conical with double wings. Very thick, short peduncle.

Berry: Medium to large, ovate, yellowish green. Berry skin thin and frosted. Flesh firm and very juicy. Short peduncle.

Woody shoot: Yellowish brown.

Time of bud burst: Medium to late, 9 days after the Fernão Pires.

Flowering: Normal, 6 days after the Fernão Pires,

Berry (colour change): Late, 11 days after the Fernão Pires

Berry (harvest ripe): Normal to late.

Vigour of shoot growth: Medium to high.

Pruning weight:: Upright, some plagiotropic (drooping).

Shoot attitude (habit): Upright, some plagiotropic (drooping).

Length of internodes: Long and medium.

Shoot length: Short and medium.

Tendency to form lateral shoots: Medium.

Rate of multiple bud bursts: Zero.

Bud fertility index: On average, 1.7 flowers per shoot.

Yield: High (10,000 – 17,500 kg/ha). RNSV statistical values: 4.5 kg/vine (Average of at least 40 clones in Arcos de Valdevez over 5 years).

Yield consistency: Consistent.

Crop uniformity: Uniform.

Winkler Index: 1,227.

Sensitivity to abiotic factors: Rustic variety. Berries may burst with excessive water in the ripening phase.

Susceptibility to fungal diseases: Susceptible to Peronospora; very susceptible to Bunch Rot (Botrytis) and Excoriosis (Phomopsis viticola Sacc.).

Systemic viral infection prior to selection: 40% GLRaV-3, 40% GFkV, <50% RSPV.

Susceptibility to Pests: Aphids, mealybugs.

Bunch size: Medium to large (365 - 404 g).

Bunch density: Very dense.

Berry skin: Thick, firm.

Seeds per berry: 1.7.

Vineyard conduction system: All types of training systems.

Soil requirement: Loose, well drained soils.

Climatic requirements: Tolerates air and soil humidity, and strong sun.

Vine density: Vine spacing should always be greater than 1 m.

Rootstock: Compatible with 196-17, SO4, 161-49, R110.

Irrigation: In extreme drought conditions.

Incidence of coulure/millerandage: Susceptible (Vila Maior, 1875).

Spoilage of mature berries: Heavy rain in Autumn can cause berries to burst.

Risk of bird damage: None.

Machine harvest suitability: Not common regionally, because training systems and topography are unsuitable.

Wine type: This variety is suitable for a particular wine style: that of the Vinho Verde (light wine).

Potential alcohol content: Traditionally low (9% – 11.5% vol.). Modern training systems achieve an alcohol content of 12% - 13% vol. RNSV statistical value: 9.85% vol. (Average of at least 40 clones in Guimarães over 6 years).

Natural acidity of must: RNSV statistical value: 7.85 g/l (Average of at least 40 clones in Guimarães over 6 years).

Risk of oxidation of must: Medium.

Colour intensity of wine: Medium to intense.

Wine colour tonality: Straw to golden.

Risk of oxidation of wine: Low.

Aromatic profile: Intense. Ripe fruits.

Ageing Potential: Medium. Wine should be consumed young.

Blending recommendation: Loureiro, Arinto, Alvarinho.

Wine Descriptors: Wine with intense straw to golden colour with a powerful aroma of ripe orchard fruits (apple, pear, peach), well integrated into a warm, round, smooth taste, but from time to time slightly unbalanced due to insufficent acid (EVAG).

Wine quality: Very good quality, as long as yield is restricted.