Winegrowers Supplies -  Vine variety information

Merzling  (originally known as Fr. 993-60)

Mother: Seyve Villard 5-276 (Seyval blanc)
Father: Fr. 375-52 (Riesling x Pinot Gris)

A white Piwi/disease-resistant variety.

Year of breeding: 1960 (Dr Johannes Zimmermann)
Country of origin: Germany
Breeder/License holder: Staatliches Weinbauinstitut Freiburg
Number of clones: 0

Year of entry into the German Federal Office's Varieties Register: 1993
Area planted in Germany in :      hectares
Area planted in England (as at August 2004): less than one hectare

Wine Character - colour: 
                      - bouquet: 
                      - palate: fruity, full-bodied and neutral,
Like some other hybrids the wines 'consume' large amounts of SO2, hence can oxidise easily and if they do not have sufficient SO2 they may not have a long life.


Time of bud-burst: average, as Müller-Thurgau

Strength of growth: strong to very strong, very upright
Growth of side-shoots: below average

Flowering time: average, as Müller-Thurgau
Flowering strength: high (very reliable yield)

Leaf: - size: medium-large                - shape: 5 lobed
        - colour: 
        - surface undulation:                - petiolar sinus: overlapping
Tough, strong leaf-wall which stays green for a long time in autumn and which resists slight early frost (-1° to -2°C)

Grape bunch: - size: medium-large, very strong stems    - density: tight
Berries:        - size: medium, juicy                               - shape: 
                   - skin colour: green, yellow-green when fully ripe

Time of veraison: average, as Müller-Thurgau
Time of harvest: middle-late; grapes can be left on the vine for a long time, although when over-ripe it can have a strange taste

Grape yield: very high
Must-weight: medium
Must-acidity: medium-high

Wood ripening: good
Winter hardiness: very good
Wood colour: 

Chlorosis resistance: 
Resistance against - Oidium: average to high         - Peronospora: average to high
                           - Botrytis: high                        - Roter Brenner: 
                           - Phomopsis                            - Stem-atrophy: very good
In some years it can manage without any treatment against fungal diseases, but at least one spray against Oidium is recommended

Preferred soil: 
Suitable rootstocks: SO4

Normal stem height: 
Normal row spacing: 1.8 to 2.0m
Vine spacing in the row: 

Winter Pruning:    eyes/buds per sq. metre of land occupied by the plant.

Advantages: Very high yield, very easy to grow, very little summer leaf-work needed.

Disadvantages: Not the most resistant to Oidium. I'm dubious about the wine quality, it oxidises easily.