Cultivation

Grapevine Scion

Vitis L.

In viticulture, the scion represents a cultivar grafted onto rootstock to provide protection against phylloxera and to manage the plant's physiological processes. The success of the union is determined by the affinity of the components and requires adherence to complex technological processes.

In the reference 38 varieties crop Grapevine, where this is mentioned in the description.

In viticulture, the scion determines the varietal characteristics of the berries, including flavor qualities, ripening periods, and aroma. The use of grafting has historically become the primary method for the survival of the crop on an industrial scale under conditions of phylloxera soil infestation, which requires strict control over the removal of the scion's own roots and rootstock suckers.

A critical factor is affinity, which determines the anatomical and physiological compatibility of the scion with a specific rootstock. The rootstock significantly influences the scion's metabolism: the use of vigorous rootstocks enhances vegetative development and yield, yet it can lead to changes in the biochemical composition of the berries, including a decrease in sugar content and an increase in acidity.

Grapevine grafting is technologically complex and includes both bench grafting methods for nursery production and techniques for grafting onto established vines, such as cleft grafting or green-on-green grafting. Agronomists utilize the selection of scion-rootstock combinations to adapt varieties to unfavorable soil conditions, including carbonate salinity and nematode infestation.

General information about the subject — on the page Scion.

Sources8

Varieties of Grapevine mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

196-17 Cl

Active

Vitis L. · Grapevine

INCONNU (FR)

1 record

3309 C

Active

Vitis L. · Grapevine

INCONNU (FR)

1 record

161-49 C