1103 Paulsen

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1103 Paulsen

Name of variety in France (and usual designation) The rootstock variety is presented by the abbreviation or name under which it appears in the national catalogue and which is also the most commonly used in French grapevine nurseries and French viticulture. There is no official list of synonyms for rootstock varieties.

The rootstock variety is presented by the abbreviation or name under which it appears in the national catalogue and which is also the most commonly used in French grapevine nurseries and French viticulture. There is no official list of synonyms for rootstock varieties.

1103 Paulsen (1103 P)

Breeder/selector and year of obtention The name of the breeder and/or selector is indicated, as is the year in which the variety was bred.

Federico Paulsen, 1896.

Genetic origin The genetic origin of the variety is also indicated when known thanks to hybridiser data or genetic analysis either published or obtained by the teams at INRAE in Montpellier (UMR AGAP) and at the Vassal-Montpellier Grapevine Biological Resources Centre (CRB-Vigne).

The genetic origin of the variety is also indicated when known thanks to hybridiser data or genetic analysis either published or obtained by the teams at INRAE in Montpellier (UMR AGAP) and at the Vassal-Montpellier Grapevine Biological Resources Centre (CRB-Vigne).

This variety results from the crossbreeding of Vitis berlandieri cv. Rességuier number 2 and Vitis rupestris cv. Lot.

Evolution of mother vine surfaces The figures indicated are taken from the successive annual reports drawn up with data from: IVCC, ONIVIT, ONIVINS, VINIFLHOR and FAM.

The figures indicated are taken from the successive annual reports drawn up with data from: IVCC, ONIVIT, ONIVINS, VINIFLHOR and FAM.

	1965	1975	1985	1995	2005	2015
Rank	11	9	7	7	7	9
ha	114	239	104	69	113	82

Estimated surface area of French vines grafted with the rootstock, and main regions of use The figures are estimated based on the computerised vineyard register and bibliographical data. The regions are indicated in descending order of size.

The figures are estimated based on the computerised vineyard register and bibliographical data. The regions are indicated in descending order of size.

9 000 ha. Charentes, Languedoc-Roussillon, Provence-Alpes-Côte d’Azur, Corsica, Aquitaine.

Descriptive elements

Only the main ampelographic elements enabling the rootstocks to be characterised and identified are provided. They are described according to the ampelographic 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 buds, flowers and adult leaves were taken indoors by the INRAE team at Domaine de Vassal from material sampled from the ampelographic collections of the Vassal-Montpellier Grapevine Biological Resources Centre.<br><br>
Note: the scale of the photos is not the same for the three organs shown. The photos of buds have been reduced (x 0.5 approx.), as have those of the adult leaves (x 0.25 approx.), while those of the flowers have been enlarged (x 4 approx.).

The identification is based on:
- the tip of the young shoot that is half opened, with a low density of prostrate hairs,
- the slightly bronzed young leaves,
- the shoots with a bushy and horizontal bearing, a ribbed surface, red internodes on the dorsal side and green on the ventral side, no prostrate hairs and a low density of erect hairs on the nodes,
- the fairly developed tendrils,
- the small to medium, wides, kidney-shaped, involute, twisted, and entire adult leaves, with an open petiole sinus, with naked petiole veins, a weak anthocyanin coloration of vein near the petiole sinus, short to medium length teeth compared to their width, a mate, rather light 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 male flowers.

Genetic profile

Microsatellite	VVS2	VVMD5	VVMD7	VVMD27	VRZAG62	VRZAG79	VVMD25	VVMD28	VVMD32
Allel 1	135	234	233	236	196	252	236	241	259
Allel 2	145	234	257	249	214	264	249	251	259

Resistance to soil parasites The degree of tolerance to the root form of phylloxera and resistance to nematodes (Meloidogyne hapla, Meloidogyne incognita and Meloidogyne arenaria), to Agrobacterium vitis (the bacterium responsible for burls) and to certain soil fungi is stated on the basis of observations or bibliographical data.

The degree of tolerance to the root form of phylloxera and resistance to nematodes (<I>Meloidogyne hapla</I>, <I>Meloidogyne incognita</I> and <I>Meloidogyne arenaria</I>), to <I>Agrobacterium vitis</I> (the bacterium responsible for burls) and to certain soil fungi is stated on the basis of observations or bibliographical data.

1103 P is highly tolerant to the root form of phylloxera. On the other hand, its resistance to Meloidogyne incognita nematodes is moderate and it is sensitive to Meloidogyne arenaria nematodes.

Adaptation to the environment $This paragraph provides information on the behaviour of the rootstock variety in relation to the structure, texture and composition of the soil, its mineral content and the soil’s pH. It also states the behaviour of the rootstock when faced with an excess or lack of water during the vegetative period. Chlorosis Iron chlorosis is related to problems of iron assimilation due to low iron content and/or high carbonate content in soil. Total calcium carbonate content alone gives only a partial idea of the chlorosis-inducing power of the soil. The active calcium carbonate content corresponds to the percentage of carbonate present in the fine fraction of the soil (clays, fine silts). Depending on the characteristics of the parent rock and its geological origin, this represents a variable percentage of the total calcium carbonate. The chlorotic power index (IPC) is a calculation which takes into account the active calcium carbonate content and the easily extractible iron content of the soil. These three values provide an insight into the risk of chlorosis and allow growers to choose the most suitable rootstock variety accordingly. Tylosis and apoplexy These apoplexy phenomena are linked to problems of water circulation through the plant when evapotranspiration is high (dry wind following heavy rainfall in the summer season) and the absorption of water through the roots is limited. In this case, the high pressure in the vessels causes air bubbles (cavitation) and tyloses (invagination of the membrane of neighbouring cells in the vessels) to form, which causes a slowing of sap circulation and water stress in the leaves.$

1103 P resists up to 30% of "total" limestone, 17% of "active" limestone and an ICP of 30. Its resistance to iron chlorosis is moderate. It is well adapted to drought conditions along with compact soils and a possible significant temporary spring humidity. 1103 P absorbs well magnesium. In addition, it is well suited to acidic soil and has a fairly good tolerance to chlorides.

Interaction with grafts and production objectives The rootstock may interact with the characteristics of the graft in terms of precocity of the vegetative cycle and the growth and development of the branches, as well as yield factors (fertility and berry size). In some cases, the risks of incompatibility or poor affinity of the rootstock variety with a graft variety are specified.

The rootstock may interact with the characteristics of the graft in terms of precocity of the vegetative cycle and the growth and development of the branches, as well as yield factors (fertility and berry size). In some cases, the risks of incompatibility or poor affinity of the rootstock variety with a graft variety are specified.

1103 P confers a high vigor and tends to produce suckers. This rootstock works well with Syrah, but some affinity problems have been noticed with Tempranillo.

Vegetative propagation aptitudes The level of wood production by the rootstock strains is stated (source: ENTAV-ONIVINS survey of grapevine nurseries, April 2001). The suitability for cleaning, disbudding, cutting and grafting is also specified. Further details are provided if the rootstock variety requires special precautions during grafting and layering.

The level of wood production by the rootstock strains is stated (source: ENTAV-ONIVINS survey of grapevine nurseries, April 2001). The suitability for cleaning, disbudding, cutting and grafting is also specified. Further details are provided if the rootstock variety requires special precautions during grafting and layering.

1103 P wood production is low to medium (25 000 to 60 000 m/ha), with a certain proportion that can not be easily used (twisted or broken canes). The growth of lateral shoot buds is high, which contributes to the presence of tendrils, and makes this rootstock canes difficult to clean and disbud. 1103 P has a moderate cutting capacity and a very good grafting aptitude.

Resistance to aerial parasites Susceptibility to the gall form of phylloxera is also specified, as is the level of resistance to or tolerance of the following diseases: downy mildew (Plasmopara viticola), anthracnose (Elsinoe ampelina) and bud mite disease (Colomerus vitis) on the basis of observation or bibliographical data.

Susceptibility to the gall form of phylloxera is also specified, as is the level of resistance to or tolerance of the following diseases: downy mildew (<I>Plasmopara viticola</I>), anthracnose (<I>Elsinoe ampelina</I>) and bud mite disease (<I>Colomerus vitis</I>) on the basis of observation or bibliographical data.

1103 P is moderately susceptible to the gall form of phylloxera and is highly resistant to downy mildew.

Clonal selection in France All certified clones are listed, as are the surface areas of the mother vine of clones that are propagated. For the moment, clonal selection of rootstock is conducted solely for sanitary purposes.

All certified clones are listed, as are the surface areas of the mother vine of clones that are propagated. For the moment, clonal selection of rootstock is conducted solely for sanitary purposes.

In France, the 7 certified 1103 P clones carry the numbers 112, 113, 168, 202, 767, 768 and 1050. Among those, the clones multiplied are:
- clone No. 113: 26 ha 90 ares of mother vines producing certified material, in 2017,
- clone No. 168: 51 ares of mother vines producing certified material, in 2017,
- clone No. 767: 1 ha 28 ares of mother vines producing certified material, in 2017,
- clone No. 768: 52 ha 43 ares of mother vines producing certified material, in 2017,
- clone No. 1050: 2 ha 54 ares of mother vines producing certified material, in 2017.

Datas are extracted from: Les chiffres de la pépinière viticole, 2017, Datas and assesment of FranceAgriMer, may 2018.

Bibliographic references noticeGreffe.Bibliographie

- 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 - Montpellier SupAgro, Marseillan, France.
- Cépages et vignobles de France, tome 1. P. Galet, 1988, Ed. Dehan, Montpellier, France.

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Catalogue of grapevines cultivated in France