1447 Paulsen
Name of vine variety in France (and common name)
1447 Paulsen (1447 P)
Breeder and year of obtention
Federico Paulsen, 1896
Genetic origin
This variety is derived from the crossbreeding of Vitis berlandieri and Vitis rupestris cv. Martin.
Evolution of areas under rootstock nurseries
1955 1965 1975 1985 1995 2005 2015
Rank 23 22 26 30 30 30 31
ha 2 4 1 0 0 0 0
Estimated surface area of French vineyards grafted with this rootstock and the main areas of use
< 5 ha.
Ampelographic description
Identification signs include:
- the tips of the young shoot have a heavy coat of flat-lying hairs,
- the young leaves are slightly bronze,
- the shoot displays upright growth and is bushy, ribbed contour, red or pInk internodes on the upper side, green on the underside with a heavy cat of upright hairs on the nodes and the internodes,
- adult leaves are small, kideny-shpaed, whole, folded groove toward the upper side with a curved or open V-shaped petiolar sinus; light green leaf blade and the underside with a moderate coat of upright hairs,
- female flowers, very small berries, round-shaped with a bluish black skin,
- vine shoots with a moderate coat of upright hairs.
Genetic profile
Allel 1 135 223 233 236 196 252 236 218 259
Allel 2 145 265 260 249 214 264 249 251 259
Resistance to soil parasites
1447 P displays a high tolerance level to radicicolae phylloxera. Its resistance to Meloidogyne incognita and Meloidogyne arenaria nématodes is also very good.
Adapt to environment
1447 P is moderately to well adapted to limestones soils. It resists up to 17% total limestone. It is likewise resistant to drought.
Interaction with grafts and production objectives
1447 P displays strong vigor. It thus produces high yields but the plant growth rate is somewhat slow.
Aptitudes for plant propagation
This rootstock has good propagation cuttings and grafting capacity.
Resistance to aerial parasites
1447 P is susceptible to gallicolae phylloxera but it displays high resistance to downy mildew.
Clonal selection in France
There are no approved clones for this variety at the present time.