Roussanne B
French appellation
Roussanne B
Use
Wine grape variety
Phenology
Time of budburst: 8 days after the Chasselas.
Time of maturity: 2nd period, 3 and a half weeks after the Chasselas.
Technological potential
The Roussanne B grapevine is a certified ENTAV-INRA® clone valued for producing complex, floral, and age-worthy white wines. The bunches are small to medium-sized and the berries are small. Roussanne B gives wines of great finesse and complexity (floral and fruity aromas of honey, hawthorn, apricot), powerful, with a good acid balance and suitable for aging. This grape variety makes it possible to highlight and reveal good terroirs.
Cultural and agronomic skills
Roussanne B has very long branches, and therefore requires careful training. It can be pruned moderately long or short. This grape variety is well suited to poor clay-limestone soils, quite stony and well exposed.
Elements of description
Identification involves:
- the tip of the young twig with a high density of recumbent hairs,
- the twig with green-colored internodes,
- the adult leaves with five or seven lobes with a shallowly open or slightly overlapping petiolar sinus, very deep lateral sinuses, very short teeth in relation to their width at the base, no anthocyanic pigmentation of the veins, a slightly revolute blade, and on the underside, a very low or low density of flat-lying hairs and erect hairs,
- berries that are round in shape.