Winegrowers Supplies -  Vine variety information

Johanniter  (originally known as Fr. 177-68)

Mother: Riesling
Father: (Seyve-Villard 12-481) x (Pino Gris x Gutedel)

A white Piwi/disease-resistant variety, quite similar to Riesling.

Year of breeding: 1968 (Dr. Johannes Zimmermann)
Country of origin: Germany
Breeder/License holder: Staatliches Weinbauinstitut Freiburg
Number of clones: Fr 340

Year of entry into the German Federal Office's Varieties Register: 
Area planted in Germany in :         hectares
Area planted in England: 

Wine Character - colour: 
                      - bouquet: neutral to Riesling-like
                    - palate: strong, fruity, ripe acidity, taste is between Pinot gris and Riesling, piquant notes of melon and pear or mandarin.

    

Time of bud-burst: 1 day before Riesling, as Silvaner

Strength of growth: medium
Growth of side-shoots: less than average

Flowering time: as Riesling, slightly after Silvaner
Flowering strength: very high

Leaf: - size: small to medium-large      - shape: 5-lobed
        - colour: 
        - surface undulation:                  - petiolar sinus: half-overlapping

Grape bunch: - size: medium-large, longer than Riesling      - density: tight
Berries:        - size: medium-large                                   - shape: round
                   - skin colour: green-gold         - taste: very fruity, reminiscent of Mandarins

Time of veraison: 1 week before Riesling
Time of harvest: middle-late; between Pinot blanc and Riesling

Grape yield: high
Must-weight: high (a Trockenbeerenauslese was made in 2002 in Germany)
Must-acidity: medium, less than Riesling

Wood ripening: 
Winter hardiness: good
Wood colour: 

Chlorosis resistance: no problem encountered
Resistance against - Oidium: high           - Peronospora: average to high
                           - Botrytis:                 - Roter Brenner: 
                           - Phomopsis              - Stem-atrophy: very high
One spray is recommended against Oidium and Peronospera

Preferred soil: 
Suitable rootstocks: 

Normal stem height: 
Normal row spacing: 
Vine spacing in the row: 

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

Advantages: very high quality wine.

Disadvantages: quite late harvest for England, would need a very good site.

www.winegrowers.info