You can find more information about the agronomic characteristics of Sultanina grape plants by following this link.
Sultanina is a table grape variety, also known as Thompson Seedless, Sultana, Tomson, or Kichinich. Its clusters are large, conical, and highly elongated, with a long peduncle and a high degree of lignification. The berries are small and have an ovoid or elliptical shape, with a circular section and a light green-yellow color when ripe. The skin is thin, with slight lenticels and inconspicuous stigmatic scars. The pulp is firm and crunchy, non-pigmented, and not very juicy, with a short pedicel that facilitates berry detachment.
Sultanina vines have vigor ranging from medium to high, with an upright growth habit. They bud, flower, go through veraison, and mature in a medium timeframe. They are highly fertile and offer good yields.
From an agronomic perspective, Sultanina requires thinning and shoot removal. Long pruning is recommended, as buds at the base of the canes are unproductive. Due to the small size of its berries, the use of gibberellins or girdling is advisable. It is susceptible to powdery mildew and moderately resistant to downy mildew, as well as prone to thrips and slightly affected by mites. Sultanina is sensitive to botrytis, and its berries detach easily from the cluster. It has a high sugar content and low acidity.
This variety has traditionally been used to produce raisins, but it is also suitable for winemaking. It is widely recognized as the most common seedless variety of grapes worldwide. Its clone in propagation is Inra-Entav 919.
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