Variety traits

Cold tolerance

Cold tolerance is a biological characteristic of a variety that determines its ability to develop and maintain productivity under prolonged exposure to low positive temperatures (from +1 to +10 °C).

Mentioned in descriptions 2 844 varieties reference book.

Cold tolerance represents the ability of an organism to maintain normal metabolism, protoplasm structure, and enzymatic activity under conditions where thermophilic crops begin to slow growth, yellow, and lose turgor. Unlike winter hardiness, this indicator does not imply the tolerance of sub-zero temperatures and freezing of tissues. In practice, a cold-tolerant variety allows for early sowing in unheated soil, reduces the risk of seedling death during spring cold snaps, contributes to the efficient use of winter moisture, and accelerates development, which often leads to earlier maturity.

Field and laboratory evaluation methods are used during variety testing. The field methodology includes phenological observations of growth rates during early sowing, visual assessment of survival after temperature stress, and structural analysis of the impact of conditions on yield components. In laboratory settings, a 'cold test' is used for seed germination in incubators at reduced temperatures followed by further growth, as well as biochemical analysis, such as determining the level of free proline in leaves.

Cold tolerance is expressed through a coefficient calculated as the ratio of performance in stress conditions to control conditions, or through percentage values of germination. Based on these data, varieties are divided into groups by resistance level. An important indicator is the temperature minimum at which crop growth ceases, which is about +4 °C for most plants and up to +10 °C for maize. Variety selection requires consideration of the biological characteristics of the crop, as this trait is critical for thermophilic plants at the early development stage.

Sources10

Breakdown by crop

Cold tolerance of maize 73 Cold tolerance of lettuce 19 Cold tolerance — soybean 15 Cold tolerance of maize 13 Cold tolerance of pea 11 Cold tolerance of endive 10 Cold tolerance of chicory 9 Cold tolerance of cucumber 9 Tomato cold tolerance 9 Cold tolerance of parsley 8 Cold tolerance of sunflower 8 Cold tolerance of spinach 7 Cold tolerance of turnip 7 Cold tolerance — Leek 7 Cold tolerance of carrots 7 Cold tolerance — soft wheat 7 Cold Hardiness of Savoy Cabbage 6 Cold tolerance — white cabbage 6 Cold tolerance — fava bean 5 Cold tolerance of faba beans 5 Cold tolerance — Black radish 5 Cold resistance of radish 5 Cold tolerance of Anthurium andraeanum 5 Cold tolerance of rice 5

Found in these crops

Maize 261 Maize 75 Olive 51 Anthurium 35 Lettuce 27 Sunflower 27 Cucumber 24 Tomato 24 Soybean 21 Leek 17 Cauliflower 15 Spinach 15

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.

ANTHCLOWI

Active

Anthurium-Andreanum-Hybriden · Anthurium

Anthura B.V.

1 record

ANTHILADAH

Active

Anthurium-Andreanum-Hybriden · Anthurium

Anthura B.V.

1 record

ANTHCONAP

Active

Anthurium-Andreanum-Hybriden · Anthurium

Anthura B.V.

1 record

AN2296317

Active

Anthurium-Andreanum-Hybriden · Anthurium

Anthura B.V.

1 record

NK Olimpic

Terminated

Zea mays L. · Maize

Beigbeder Jean

1 record

NK Fal`kon

Terminated

Zea mays L. · Maize

Zhan Beibeder

1 record

MAF 10

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

MAISADOUR/FITO

1 record

MAGASUN

Active

Helianthus annuus L. · Sunflower

VANDERHAVE RESEARCH

1 record

KWS Beaudor

Withdrawn

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

1 record

Lakaren SU

Active

Helianthus annuus L. · Sunflower

Pryvatne Pidpryiemstvo "NASINNEVE"

2 records

Khorol SV

Active

Zea mays L. · Maize

Savchuk Liudmyla Fedorivna, Matseiko Ivan Ivanovych, Hopchak Tetiana Mykolaivna, Sen Oleksandr Vitaliiovych, Bodenko Natalia Anatoliivna, Sytnychenko Vira Petrivna, Perevertun Larysa Ivanivna, Hodz` Mykola Vasyl`ovych, Zaika Stanislav Polikarpovych,

2 records

Kharkivs`ka 215 ZM

Active

Zea mays L. · Maize

Ovsiannikova Nataliia Stanislavivna, Ponurenko Serhii Hennadiiovych, Sikalova Olena Valentynivna, Chernobai Larysa Mykolaivna, Ivleva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kozubenko Leonid Vasyl`ovych,

2 records

DN Harant

Active

Zea mays L. · Maize

Bodenko Natalia Anatoliivna, Khromenko Vitalii Oleksandrovych, Kalinchuk Oleh Ivanovych, Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

2 records

DN Atlant

Active

Zea mays L. · Maize

Satarova Tetiana Mykolaivna, Nehoda Tetiana Volodymyrivna, Olkhovyk Maksym Stanislavovych, Abelmasov Oleksii Viktorovych, Korobko IUliia Anatolivna, Khimich Marharyta Olehivna, Haidash Oleksandr Leonidovych, Bodenko Natalia Anatoliivna, Cherchel Vladyslav

2 records

Bleid

Active

Zea mays L. · Maize

Bodenko, Natalia Loi, Nataliia Olizko, Oleksii Nehoda, Tetiana Haidash, Oleksandr Bernatskyi, Maksym Cherchel, Vladyslav Dziubetsky,i Borys Abelmasov, Oleksii

2 records

Ardesio

Active

Zea mays L. subsp. mays (Maize Group) · Maize

KWS SAAT SE&CO.KGaA, DE

1 record

Aleksandryt

Active

Glycine max (L.) Merr. · Soybean

Diianova Anna Oleksandrivna, Biliavs`kyi IUrii Viktorovych, Biliavs`ka Liudmyla Hryhorivna,

2 records

Allia

Withdrawn

Zea mays L. subsp. mays (Maize Group) · Maize

R 2n (FR)

1 record

Da taglio

Active

Apium graveolens L. var. dulce (Mill.) Pers. · Celery

2 records

Cynora

Protection expired

Cynosurus cristatus L. · Crested dog's-tail

HR SI

2 records

Moblanc

Terminated

Brassica oleracea L. (Kale Group) · Kale

2 records

Wonder van Amerika

Active

Pisum sativum L. · Pea

2 records

Gigante di Praga

Terminated

Apium graveolens L. · Celery

1 record

YuSO 31

Withdrawn

Cannabis sativa L. · Hemp

1 record

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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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.