Lettuce VIST.

Technical Profile of the 'Vist' Variety

This leaf lettuce variety, developed by the Institute of Vegetable and Melon Growing of the NAAS, is designed as a precision tool for intensive conveyor production. Its primary engineering objective is maximum vegetation speed while maintaining the marketability of the leafy rosette.

Biological Strategy

The variety belongs to the leaf type, which eliminates the energy expenditure required for head formation and allows for a production cycle as short as 10–30 days. These compressed timelines make it an optimal solution for vertical farming, greenhouse operations, and open-field cultivation during the spring-summer season.

Phytopathological Protection

A critical bottleneck in leaf lettuce cultivation is susceptibility to downy mildew (Peronospora), capable of destroying crops within days under high-humidity conditions. 'Vist' possesses built-in genetic resistance to this pathogen. In practical terms, this ensures:

• Reduced frequency of fungicide applications, which is essential for produce with a short growth cycle.
• Stable leaf blade quality even during temperature fluctuations between day and night, which typically trigger fungal development.
• Absence of chlorotic spots, preserving both the aesthetic appeal and the biological value of the product.

The selection process at the Institute of Vegetable and Melon Growing is focused on high adaptability to the climate of Ukraine, providing predictable results for both protected soil environments and direct field seeding.