Rességuier Sélection Birolleau 1
Name of vine variety in France (and common name)
Rességuier Sélection Birolleau 1 (RSB 1)
Breeder and year of obtention
Léné, Birolleau and Lafon, 1896
Genetic origin
This variety is derived from the crossbreeding of Vitis berlandieri and Vitis riparia derived from Euryale Rességuier.
Evolution of areas under rootstock nurseries
1975 1985 1995 2005 2015
Rank 15 14 12 14 12
ha 45 33 44 36 36
Estimated surface area of French vineyards grafted with this rootstock and the main areas of use
20 000 ha. Charentes, Languedoc-Roussillon
Ampelographic description
Identification signs include:
- the tip of the young shoot is half-open with a moderate coat of flat-lying hairs,
- young leaves are slightly bronze,
- elongated shoot with a ribbed contour; green internodes and red nodes on the underside and red internodes on the upper side; slight coat of upright hairs on the nodes,
- bifid or trifid tendrils,
- adult leaves are dark green, large, wedge-shaped, bubbled, sometimes slightly revolute with an ondulated leaf blade between the veins and folded near the petiolar point; a lyre-shaped sinus; slight anthocyanin coloration of veins and the underside with a slight to moderate coat of upright hairs,
- female flowers,
- very small berries, round-shaped with blusih black skin and dark brown vine shoots.
Genetic profile
Allel 1 139 223 233 236 200 252 236 235 259
Allel 2 147 263 264 246 214 260 246 243 259
Resistance to soil parasites
RSB 1 displays high tolerance levels to radicicolae phylloxera.
Adapt to environment
RSB 1 resists up to 40% total limestone, 20% active limestone and a CPI of 50. Good resistance to ferric chlorosis but it doesn't absorb magensium well. This root stock is adapted to temporary excess humidity in the spring conditions and it displays good resistance to summer drought. RSB1 is well suited to not very fertile and limestone soils.
Interaction with grafts and production objectives
RSB 1 displays good compatibility with grafts. Strong vigor especially during the first part of the vine life (first 15 years) and it produces fairly high yields. RSB 1 produces very good results with Ugni blanc B.
Aptitudes for plant propagation
RSB 1 is a very good wood producer (50 000 to 90 000 m/ha) and displays good propagation by cuttings and grafting capacity. Its internodes are long with moderate to large diameter.
Resistance to aerial parasites
Susceptibility of RSB 1 to gallicolae phylloxera is low to moderate and it displays high resistance to downy mildew and anthracnosis.
Clonal selection in France
The 4 approved RSB 1 clones cary the numbers 107, 108, 109 and 141. Clone number 109 would appear to sometimes have problems with blending.