Danlas

Danlas B

Name of the variety in France Name under which the variety is officially registered in the catalogue of grapevine varieties in France and under which it may be propagated and disseminated.

Name under which the variety is officially registered in the catalogue of grapevine varieties in France and under which it may be propagated and disseminated.

Danlas

Origin

This variety was obtained in 1958 by INRA by crossbreeding Dabouki and Chasselas.

Synonyms

Recognised alternative names that may be used to identify the propagation material of the variety in France or in other member countries of the European Union.

There is no officially recognized synonym in France nor in the other countries of the European Union, for this variety.

Legal information This information indicates on which list the variety is registered (A or B), whether it is classified for wine grapes, and in which member countries of the European Union the variety is also officially registered (for more information, see the <a href="/en/reglementation">"Legislation"</a>menu).

This information indicates on which list the variety is registered (A or B), whether it is classified for wine grapes, and in which member countries of the European Union the variety is also officially registered (for more information, see the <a href="/en/reglementation">"Legislation"</a>menu).

In France, Danlas is officially listed in the "Catalogue of vine varieties" on the A list. It is classified as a wine grape variety only in some French department (see the regulations in force). This variety is also listed in the catalogue of Portugal.

Use

This information indicates the normal and statutory use for the grapes.

Wine and table grape variety.

Evolution of cultivated areas in France

The figures provided are taken from vineyard land registers (IVCC, ONIVIT, ONIVINS), general agricultural censuses (SCEES-INSEE) and the current computerised vineyard register (DGDDI, FAM).<br>
Regional vine planting data is available on the following site: <a href="https://visionet.franceagrimer.fr/Pages/DonneesInteractivesDocs.aspx?sousmenu=observatoire%20de%20la%20viticulture" target="">visionet</a>.

	1979	1988	2000	2008	2018
ha	7	109	321	263	162

Descriptive elements

<p>Only the principal ampelographic elements enabling the varieties to be characterised and identified are provided. They are presented according to the descriptor code recognised by the International Organisation of Vine and Wine (OIV), the International Union for the Protection of New Varieties of Plants (UPOV), the Community Plant Variety Office (OCVV) and Bioversity International (for more information, see the <a href="/en/vocabulaire">"Ampelographic glossary"</a> menu).<br>
The photographs of leaves and grapes were taken in natural conditions, on the vine, in very similar situations in terms of growing conditions (sandy soil, Mediterranean coast):</p>
<ul>
<li>Domaine de l'Espiguette (IFV), Le Grau du Roi (Gard),</li>
<li>Domaine de Vassal (INRAE), Marseillan (Hérault),</li>
<li>La Gaillarde Campus (Institut Agro | Montpellier SupAgro), Montpellier (Hérault).</li>
</ul>
<p>Only a few photographs, including the tips of bunches, were taken in other conditions.</p>

Identification signs include:
- the tip of the young shoot with a medium density of prostrate hairs,
- the reddish young leaves,
- the shoots with a strong anthocyanin pigmentation of the nodes and the internodes,
- the pentagonal adult leaves, with five or seven lobes, a slightly open or closed V-shaped petiole sinus with slightly overlapping lobes, large teeth, medium compared to their width at the base with straight sides, a moderate to strong anthocyanin pigmentation of veins, a twisted, moderately blistered leaf blade, and on the lower side of the leaves, a low density of erect hairs and no or a very low density of prostrate hairs,
- the round-shaped berries.

Genetic profile

Microsatellite	VVS2	VVMD5	VVMD7	VVMD27	VRZAG62	VRZAG79	VVMD25	VVMD28	VVMD32
Allel 1	131	225	239	176	188	248	240	216	239
Allel 2	149	232	249	182	194	252	244	257	271

Phenology

<p>The growth stages indicated are the result of obsrvations made at the Domaine de Vassal Estate where the set of these varieties form a collection. The results are indicated compared to the Chasselas vine variety as a reference in order to make comparisons between years and different sites. As such, for information purposes, the dates for the Chasselas B growth stage at Domaine de Vassal are as follows:</p>
<ul>
<li>Bud burst, 21 March (average over 50 years)</li>
<li>Grape maturity, 14 August (average over 50 years)</li>
</ul>

Bud burst: 5 days after Chasselas.
Grape maturity: early-season, 1 week and a half after Chasselas.

Suitability for cultivation and agronomic production The data on suitability are the result of field observations or, if none are available, of bibliography mining and the study of bibliographic references.

The data on suitability are the result of field observations or, if none are available, of bibliography mining and the study of bibliographic references.

Danlas displays strong vigor and a horizontal bearing. As it is sensitive to the wind, it must be trained and pruned long. It is not very susceptible to millerandage and coulure.

Susceptibility to diseases and pests These remarks are also the result of field observations or, if none are available, of bibliography mining and study of bibliographic references.

These remarks are also the result of field observations or, if none are available, of bibliography mining and study of bibliographic references.

Danlas is very susceptible to phomopsis, downy and powdery mildew. On the other hand, it is not very sensitive to grey rot.

Technological potentiality

<p>The size of grape clusters and berries indicated are based on the following scales:</p>
<table id="potentiel">
<thead>
<tr>
<td> </td>
<td colspan="2">Wine grape varieties</td>
<td colspan="2">Table grape varieties</td>
</tr>
</thead>
<tbody>
<tr>
<td>Size</td>
<td>Bunch (g)</td>
<td>Berry (g)</td>
<td>Bunch (g)</td>
<td>Berry (g)</td>
</tr>
<tr>
<td>Very small</td>
<td>≤ 100</td>
<td>< 1</td>
<td>< 150</td>
<td>< 2</td>
</tr>
<tr>
<td>Small</td>
<td>100 - 200</td>
<td>1,5 - 2</td>
<td>150 - 250</td>
<td>2 - 3,5</td>
</tr>
<tr>
<td>Moderate</td>
<td>200 - 250</td>
<td>2 - 2,5</td>
<td>250 - 400</td>
<td>3,5 - 5,5</td>
</tr>
<tr>
<td>Large</td>
<td>250 - 400</td>
<td>2,5 - 3,5</td>
<td>400 - 700</td>
<td>5,5 - 8</td>
</tr>
<tr>
<td>Very large</td>
<td>> 400</td>
<td>> 3,5</td>
<td>> 700</td>
<td>> 8</td>
</tr>
</tbody>
</table>
<p>Remarks concerning the characteristics of the wines are generally based on tastings organised by juries of professionals.</p>

Danlas's bunches are large, moderately compact with a long and pigmented peduncle. The clusters are homogeneous, easy to pick and to package. The berries are medium to large in size. The skin is thick and the pulp relatively juicy, soft with a neutral flavor. Danlas has a good storage and transport capacity. When vinified, Danlas produces ordinary and not very aromatic wines.

Clonal selection in France In this section, the list of certified clones is given. Information on clone conservatories is also provided.

The only certified Danlas clone carries the number 499.

Bibliographic references The main bibliographical sources are provided.

- Catalogue des variétés et clones de vigne cultivés en France. Collectif, 2007, Ed. IFV, Le Grau-du-Roi, France.
- Documentary collections of the Centre de Ressources Biologiques de la Vigne de Vassal-Montpellier, INRAE - Institut Agro | Montpellier, Marseillan, France.
- Dictionnaire encyclopédique des cépages et de leurs synonymes. P. Galet, 2015, Ed. Libre&Solidaire, France.

Description of clones certified in France In this section, the list of certified clones is given. Information on clone conservatories is also provided.

		Identity and availability					Agronomic data						Technological data						Autres informations
Clone no.	Marque	Origin	Selection	Year of certification	Agronomic references	Surface area used for propagation (year)	Fertility	Production level	Bunch weight	Vigor	Berry size	Susceptibility to grey rot	Sugar level	Color potential	Titrable acidity	Tannic structure	Aromatic intensity	Oenological suitability	New	General note	Agro-tecnic note	Note agronomique	Agronomic note	Links
499			INRA	1976

Note

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Catalogue of grapevines cultivated in France