Cultivation

Winter and spring forms of flax

Linum usitatissimum L.

Common flax is primarily represented by spring forms; however, selective breeding has produced experimental winter forms capable of overwintering and utilizing autumn-winter moisture.

In the reference 21 varieties crop Common flax, where this is mentioned in the description.

The bulk of cultivated flax is a spring crop with a complete development cycle within a single growing season. Winter, or overwintering, forms of flax serve as a specialized result of breeding aimed at producing plants with sufficient frost resistance for autumn sowing.

The use of winter forms allows for earlier crop maturation and more effective utilization of winter moisture; however, their cultivation is limited to regions with mild winters due to the high risk of winterkill. For such forms, specific phenological development scales are used, accounting for the overwintering stage, which critically affects subsequent bolting and the formation of the plant's reproductive organs.

General information about the subject — on the page Winter and spring forms.

Sources8

Varieties of Common flax 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.