The crop of Avena sativa is primarily based on spring forms, whereas winter forms are restricted to regions with mild climates due to their low winter hardiness.
In the reference
50
varieties
crop Oat,
where this is mentioned in the description.
In Avena sativa cultivation, spring forms predominate; these complete their full development cycle from tillering to maturity within a single growing season when sown in spring. Winter forms, including semi-winter and facultative types, are less common and require vernalization through exposure to low temperatures to transition to generative development.
Winter oat varieties can outperform spring varieties in yield and have a longer growing season; however, their distribution in Russia is limited to the North Caucasus region. The primary obstacle to the widespread adoption of winter forms is their low winter hardiness and the risk of winterkill when sown under harsh winter conditions.
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.