A grower in Parwan has cultivated around 50 grape varieties brought from Central Asia, Russia and Ukraine and says the early results have been encouraging. Mir Hamza says several of the varieties differ in size, colour, taste and ripening characteristics from grapes commonly grown in the area.
An early successful harvest is useful evidence that a variety can grow under local conditions, but it is not enough to establish long-term commercial performance. Growers need several seasons of observations to compare yield, fruit quality, resistance to pests and disease, winter survival and water requirements.
Market factors matter as much as agricultural performance. A variety that grows well still needs consumer demand, suitable packaging, storage and transport if it is to earn a premium price. Parwan already has a strong grape-growing tradition, so trials of imported varieties could broaden the range available to farmers if the strongest performers continue to produce reliably over time.