Delhro N
Name of the variety in France
Delhro
Origin
This variety selected by INRA, was obtained in 1959 by crossbreeding Alphonse Lavallée and Perle de Csaba.
Synonyms
There is no officially recognized synonym in France nor in the other countries of the European Union, for this variety.
Legal information
In France, Delhro is officially listed in the "Catalogue of vine varieties" on the A list.
Use
Table grape variety.
Evolution of cultivated areas in France
2000 2018
ha 4 ND
Descriptive elements
The identification is based on:
- the tip of the young shoor with a medium to high density of prostate hairs,
- the green young leaves,
- the circular adult leaves, with three or five lobes, a slightly open or closed U-shaped petiole sinus with slightly overalpping lobes, short to medium teeth with straight sides, no or very slight anthocyanin coloration of veins, a moderately blistered leaf blade, and on the lower side of the leaves, a low to medium density of erect and prostate hairs,
- the round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 234 247 178 204 240 238 243 271
Allel 2 153 236 255 182 204 256 240 267 271
Phenology
Bud burst: 2 days before Chasselas.
Grape maturity: very early season, 1 week and a half to 2 weeks before Chasselas.
Suitability for cultivation and agronomic production
Delhro displays moderate vigor with a semi-erect to horizontal bearing. It is fairly fertile and can be managed with short or moderately long pruning. It is a little susceptible to millerandage.
Susceptibility to diseases and pests
Delhro is not very susceptible to grey rot.
Technological potentiality
Delhro's bunches are medium in size. The berries are small to medium in size with homogenous color. The simple-flavored pulp is firm and juicy. Delhro has a good storage and transport capacity.
Clonal selection in France
The only certified Delhro clone carries the number 781.
Bibliographic references
- 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.
- Dictionnaire encyclopédique des cépages et de leurs synonymes. P. Galet, 2015, Ed. Libre&Solidaire, France.
Description of clones certified in France
Identity and availability Agronomic data Technological data Autres informations
Clone no. Marque Origin Selection Year of
certification
Agronomic
references
Surface area used
for propagation (year)
Fertility Production
level
Bunch
weight
Vigor Berry
size
Susceptibility
to grey rot
Sugar
level
Color
potential
Titrable
acidity
Tannic
structure
Aromatic
intensity
Oenological
suitability
New General
note
Agro-tecnic
note
Note
agronomique
Agronomic
note
Links
781 Non précisée ENTAV 1981