Chasan

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Chasan B

Name of vine variety in France Name of Variety in France

Chasan

Origin

This variety was obtained by INRA in 1958. Based on genetic analyses carried out in Montpellier, this variety is derived from the crossbreeding of Listan B and Pinot.

Synonymy

Alternative names can designate the variety in France or in other member states of the European Union, subject to certain regulatory conditions.

There is no officially recognized synonym in France nor in other countries in the European Union.

Regulations

This information indicates in which member states of the European Union the variety is officially listed. Unless otherwise mentionned, the variety in question is listed on the A1 list which provides that plants produced can be marketed within the European Union and are eligible to be classified as being part of the wine and vine sector in France. If it is noted that the variety is listed on the A2 list, this provides that plants produced can be marketed within the European Union but that they are not eligible to being classified as part of the French wine and vine sector.

In France, Chasan B is officially listed in the "Catalogue of vine varieties".This variety is likewise listed in the Catalogue of Spain.

Use

This information indicates the normal and regulatory usage of the grapes.

Wine grape variety

Evolution of area under vines in France Date indictaed comes from wine producing land registers (IVCC, ONIVIT, ONIVINS), general agricultural censuses (SCEES-INSEE), and the computerized vineyard register (DGDDI).

Date indictaed comes from wine producing land registers (IVCC, ONIVIT, ONIVINS), general agricultural censuses (SCEES-INSEE), and the computerized vineyard register (DGDDI).

	1988	2000	2008	2016
ha	238	1058	960	457

Description

<p>Principle ampelographic data has been selected to characterize vine varieties. This criteria is described in accordance with the code of descriptors recognized by the Interntaion Organization of Vine and Wine (O.I.V.), The Union for the Protection of New Varieties of Plants (U.P.O.V) and Bioversity International.<br> Photographs of leaves and grape bunches have been taken under natural conditions, on the vine trunk in situations very close to growing conditions (sandy soil – Mediterranean coast) :</p>
<ul>
<li>Domaine de l'Espiguette (IFV), Le Grau de Roi (Gard),</li>
<li>Domaine de Vassal (INRA), Marseillan (Hérault),</li>
<li>Campus de la Gaillarde (Montpellier SupAgro), Montpellier (Hérault).</li>
</ul>
<p>Only a few photographs have been taken in other vine growing areas.</p>

Identification signs include:
- the end of the young shoot is sparsely covered with flat-lying hairs, the young leaves are yellow, - the herbaceous shoot with red-color internodes,
- orbicular adult leaves are 7-lobed or more with an open petiolar sinus, U-shaped deep lateral sinus, medium teeth with straight sides, no anthocyanin pigmentation of veins and the underside is moderately covered with erect hairs.
- round-shaped berries

Genetic profile

Microsatellite	VVS2	VVMD5	VVMD7	VVMD27	VRZAG62	VRZAG79	VVMD25	VVMD28	VVMD32
Allel 1	143	225	239	182	194	240	240	216	239
Allel 2	149	236	239	182	194	252	248	247	255

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: 3 days after Chasselas.
Grape maturity: period I, a half week after Chasselas

Suitability for cultivation and agronomic production The synthesis of aptitudes is the result of observations made in the field or otherwise from analysis of bibliographic references.

The synthesis of aptitudes is the result of observations made in the field or otherwise from analysis of bibliographic references.

Chasan B must be trellised and short pruned due to it being a fertile and productive variety which grows long trailing branches.

Sensitivity to diseases and pests Comments come from observations in the field and otherwise from the analysis of data and bibliographical references.

Comments come from observations in the field and otherwise from the analysis of data and bibliographical references.

This early variety resists very well to grey rot but is susceptible to phomopsis, powdery mildew and to a lesser extent to downy mildew and mites.

Technological potential

<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><br> Comments concern wine characteristics generally based on wine tastings. <br></p>

The grape clusters are very large and the berries are medium size. Chasan B produces aromatic products, but which are sensitive to oxidation. This variety is well suited to cool areas as acidity drops quickly during maturation and oftentimes drops to very low levels in southern regions.

Clonal selection in France In this section, the list of approved clones is specified. Information on clone conservatories is likewise provided.

The only approved Chasan B clone carries the number 538

Bibliographic references The main bibliographic sources are indicated.

- Catalogue des variétés et clones de vigne cultivés en France. Collectif, 2007, Ed. IFV, Le Grau-du-Roi.
- Documentation interne du Domaine de Vassal. 1949-2011, INRA, Marseillan-plage.
- Cépages et vignobles de France, tome 2. P. Galet, 1990, Ed. Dehan, Montpellier.

Description of clones approved in France In this section, the list of approved clones is specified. Information on clone conservatories is likewise provided.

	Identity and availability		Agronomic data		Technical data
Clone number	● Origin	■ Selection	❒ Fertility	✽ Production level	✦ Sugar content	✣ Potential color
	✚ Year approved	✱ Agronomic references	◆ Weight of grape clusters	◗ Vigor	✖ Total acidity	❖ Tannic structure
	▲ Growing surface area		❍ Size of berries	★ Sensitivity to Botrytis	▼ Aromatic intensity	✪ Oenological aptitudes

538	●	■ INRA	❒	✽	✦	✣
	✚ 1976	✱ Languedoc	◆	◗	✖	❖
	▲		❍	★	▼	✪

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Catalogue of vines grown in France