1103 Paulsen
Name of vine variety in France (and common name)
1103 Paulsen (1103 P)
Breeder and year of obtention
Federico Paulsen, 1896
Genetic origin
This variety is derived from the crossbreeding of Vitis berlandieri cv. Rességuier n°2 and Vitis rupestris cv. Lot.
Evolution of areas under rootstock nurseries
1965 1975 1985 1995 2005 2015
Rank 11 9 7 7 7 9
ha 114 239 104 69 113 80
Estimated surface area of French vineyards grafted with this rootstock and the main areas of use
9 000 ha. Charentes, Languedoc-Roussillon, Provence-Alpes-Côte d’Azur, Corsica, Aquitaine
Ampelographic description
Identification signs include:
- the tips of the young shoot are half opened and have a sparse coat of flat lying hairs,
- the young leaves have slightly bronze patches,
- the shoots have horizontal growth and are bushy with a ribbed contour, red internodes on the dorsal side and green on the underside with an absence of flat lying hairs and a sparse coat of upright hairs on the nodes, 
- fairly developped tendrils,
- adult leaves are small to medium size, large and kidney shaped, whole, upturned and jagged with an open petiolar sinus which is bordered by the vein near the petiolar point, slight anthocyanin pigmentation os vein near the petiolar point; short to moderate size teeth compared to width; the leaf blade is matter, rather light colored and the underside has an absence or very sparse coat of flat-lying hairs and a sparse coat of upright hairs,
- male flowers
Genetic profile
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
1103 P displays high resistance to radicicolae phylloxera. On the other hand, its resistance to the nematodes Meloidogyne incognita is moderate and it is sensitive to the nematodes Meloidogyne arenaria.
Adapt to environment
1103 P resists up to 30% total limestone, 17% of active limestone and a CPI of 30. Its resistance to ferric chlorosis can be considered moderate. It is well adapted to drought along with compact soil and with possible presence of substantial temporary spring humidity. 1103 P absorbs magnesium well. In addition, it is well suited to acidic soil with fairly good tolerance to chlorides.
Interaction with grafts and production objectives
1103 P has substantial vigor and tends to produce sucker growth. Blending with Syrah N produces good results but some affinity problems have been noted with Tempranillo N.
Aptitudes for plant propagation
1103 P wood production is low to medium (25 000 to 60 000 m/ha), with a certain proportion being difficult to use (twisted or broken wood). Substantial growth of lateral shoots which contributes to the presence of tendrils, which makes this rootstock wood difficult to debud and cut. The propagation by cuttings capacity for  1103 P is moderate but its grafting capacity is very good.
Resistance to aerial parasites
1103 P is moderately susceptible to gallicolae phylloxera and is highly resistant to downy mildew.
Clonal selection in France
The 7 approved 1103 P clones carry the numbers 112, 113, 168, 202, 767, 768 and 1050.