Rondo is a dark-skinned
grape
A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters.
The cultivation of grapes began perhaps 8,000 years ago, ...
variety, used for making red
wine
Wine is an alcoholic drink typically made from fermented grapes. Yeast consumes the sugar in the grapes and converts it to ethanol and carbon dioxide, releasing heat in the process. Different varieties of grapes and strains of yeasts are m ...
. It is a
hybrid grape
Hybrid grapes are grape varieties that are the product of a Hybrid (biology), crossing of two or more ''Vitis'' species. This is in contrast to crossings between grape varieties of the same species, typically ''Vitis vinifera'', the European grape ...
or inter-specific crossing. It was created in 1964 by Professor
Vilém Kraus in then-
Czechoslovakia
, rue, Чеськословеньско, , yi, טשעכאסלאוואקיי,
, common_name = Czechoslovakia
, life_span = 1918–19391945–1992
, p1 = Austria-Hungary
, image_p1 ...
by crossing the varieties
Zarya Severa (a hybrid which has ''
Vitis amurensis
''Vitis amurensis'', the Amur grape, is a species of grape native to the Asian continent. Its name comes from the Amur Valley in Russia and China.
It is very resistant to frost, but is not tolerant to drought. Selections vary, but as a species ...
'' in its
pedigree
Pedigree may refer to:
Breeding
* Pedigree chart, a document to record ancestry, used by genealogists in study of human family lines, and in selective breeding of other animals
** Pedigree, a human genealogy (ancestry chart)
** Pedigree (animal ...
) and
St. Laurent. He offered it to Dr.
Helmut Becker
Helmut Becker (8 March 1927 – 19 July 1990), German viticulturist, was chief of the Geisenheim Grape Breeding Institute.Andrew G Reynolds, ''Grapevine Breeding Programs for the Wine Industry: Traditional and Molecular Techniques'' Elsevier, 2015, ...
(1927-1990) of the
Geisenheim Grape Breeding Institute
The Geisenheim Grape Breeding Institute was founded in 1872 and is located in the town of Geisenheim, in Germany's Rheingau region. In 1876 Swiss-born professor Hermann Müller joined the institute, where he developed his namesake grape variety ...
who conducted further work on it, which explains why the grape is known under a Geisenheim designation. The variety was first planted for research and later in bigger scale in the mid 1980s by Thomas Walk Vineyard in Ireland under the name Amurensis Walk; it was named Rondo in 1997 (German Federal Office's Varieties Register).
This very early maturing variety possesses high resistance against winter frost and
downy mildew
Downy mildew refers to any of several types of oomycete microbes that are obligate parasites of plants. Downy mildews exclusively belong to the Peronosporaceae family. In commercial agriculture, they are a particular problem for growers of crucif ...
from its Asiatic ''Vitis amurensis'' parent. However annual treatments against powdery mildew may still be necessary in the vineyards. Rondo produces a ruby-red wine which is also used for blending. Rondo is cultivated in many locations in northern
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
where dark-skinned ''
Vitis vinifera
''Vitis vinifera'', the common grape vine, is a species of flowering plant, native to the Mediterranean region, Central Europe, and southwestern Asia, from Morocco and Portugal north to southern Germany and east to northern Iran. There are curre ...
'' varieties are difficult to ripen properly, as it tends to yield good colour and aroma even in those locations. Rondo is cultivated in
Rheinhessen
Rhenish Hesse or Rhine HesseDickinson, Robert E (1964). ''Germany: A regional and economic geography'' (2nd ed.). London: Methuen, p. 542. . (german: Rheinhessen) is a region and a former government district () in the German state of Rhineland- ...
and in many locations in northern Europe including
Denmark
)
, song = ( en, "King Christian stood by the lofty mast")
, song_type = National and royal anthem
, image_map = EU-Denmark.svg
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Danish Realm, Kingdom of Denmark
...
,
England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...
,
Ireland
Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...
,
Wales
Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...
, the
Netherlands
)
, anthem = ( en, "William of Nassau")
, image_map =
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Kingdom of the Netherlands
, established_title = Before independence
, established_date = Spanish Netherl ...
and
Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
.
In 2011 the British winery Denbies picked up a gold prize in the
International Wine Challenge
International is an adjective (also used as a noun) meaning "between nations".
International may also refer to:
Music Albums
* International (Kevin Michael album), ''International'' (Kevin Michael album), 2011
* International (New Order album), ' ...
for their 2010 vintage Chalk Ridge Rose, a wine made entirely from Rondo grapes.
Château Dorking: how a vineyard in Surrey created the world's best rosé
accessed on July 23, 2011
Synonym
Geisenheim 6494-5 (Gm 6494-5).
References
{{Hybrid grape varieties
Hybrid grape varieties