Cultivation

Winter and spring forms

The distinction between winter and spring forms is based on the biological requirement for vernalization—a temperature-driven phase necessary for the formation of reproductive organs. Winter forms require cold exposure, whereas spring forms develop at higher temperatures throughout a single growing…

Mentioned in descriptions 2 949 varieties reference book.

Winter forms require exposure to low temperatures between 0 and +10°C for 20–70 days to transition to generative development, whereas spring forms require only temperatures between +5 and +20°C for 7–20 days. When winter forms are sown in the spring, plants often fail to form reproductive organs. There are also facultative varieties capable of producing a harvest under both sowing patterns in regions with mild climates.

The choice between these forms depends on risk management, crop rotation, and technical resources. Winter varieties are sown in the autumn; they have higher yield potential due to the utilization of autumn-winter moisture and mature 10–15 days earlier. Spring forms depend on spring-summer precipitation; they possess lower winter hardiness and more frequently exhibit high baking quality.

Variety resistance and productivity are determined by adaptability to local climatic conditions, such as the availability of reliable snow cover for winter forms or tolerance to summer droughts for spring forms. Planning sowings using both forms allows for reduced machinery workload during the spring period, efficient distribution of soil fertility, and protection of the farm against weather-related risks.

Sources10

Breakdown by crop

Found in these crops

Bread wheat 211 Apple 87 Triticale 87 Barley 79 Rapeseed 53 Durum wheat 36 Oat 31 Pea 21 Rapeseed 19 Rye 17 European pear 15 Spelt 14

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Ananke

Withdrawn

Secale cereale L. · Rye

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

1 record

0EW0273

Active

Brassica napus var. napus · Rapeseed

Dirk Decherf

2 records

Lana

Withdrawn

x Tritordeum (Hordeum chilense x Triticum turgidum)

Alba Martinez

1 record

Domaci jari

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Cultivation

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.