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Variety traits

Cold tolerance of sunflower

Helianthus annuus L.

The ability of sunflower seeds to germinate and the growth rate of seedlings under low-temperature conditions, ensuring uniform emergence during early spring sowing.

In the reference 8 varieties crop Sunflower, where this is mentioned in the description.

The cold tolerance of sunflower is determined by the ability of seeds to germinate at temperatures below the optimum. The trait is evaluated using laboratory methods by incubation in thermostats at a temperature of about 10°C, where germination energy and rate, as well as morphometric indices of the seedlings, are measured.

The biochemical assessment method is based on the accumulation of free proline in leaves after cooling, based on which a cold tolerance coefficient is calculated. Samples with a coefficient of 3.01 and above are considered highly cold-tolerant, 1.51–3.00 are moderately cold-tolerant, and 1.50 and below are low in cold tolerance.

For practical cultivation, the crop is capable of germinating at 4–5°C; however, to ensure uniform emergence, the optimum soil temperature at the sowing depth is considered to be between 8 and 14°C. Breeding for this trait allows plants to overcome the critical period of ontogeny faster, reducing the time to emergence.

General information about the subject — on the page Cold tolerance.

Sources7

Varieties of Sunflower 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.

AL'ZAN

Active

Helianthus annuus L. · Sunflower

SEMENCES COOP DE PAU (FR)

AT BG CZ FR HR HU +1
12 records

LG 55.80

Active

Helianthus annuus L. · Sunflower

Limagrain Verneuil Holding (FR)

BG IT SK UA
13 records

LG 5478

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

AT HU IT UA
11 records

LG 50635 CLP

Active

Helianthus annuus L. · Sunflower

Remy Rouane

BG IT UA
11 records

LG 50689 SX

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG ES HU IT RO UA
11 records

LG 50662

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

HU IT SK UA
11 records

LG 5377

Active

Helianthus annuus L. · Sunflower

Soltis (FR)

AT FR UA
9 records

LG 50510

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

IT SK UA
10 records

LG 5370

Active

Helianthus annuus L. · Sunflower

LIMAGRAIN EUROPE

SK UA
6 records

LG58390

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG ES UA
8 records

LG58630

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG SK UA
9 records

LG 50300

Active

Helianthus annuus L. · Sunflower

SK UA
7 records

LG50550 CLP

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

BG IT UA
7 records

Terra

Active

Helianthus annuus L. · Sunflower

Zhan-Liuk Madef

ES UA
7 records

Michel

Active

Helianthus annuus L. · Sunflower

ISEA S.P.A.

IT UA
5 records

Inesol

Active

Helianthus annuus L. · Sunflower

MIRASOL SEED SLU

IT UA
4 records

T 0514 LF

Active

Helianthus annuus L. · Sunflower

Revol Benoit

UA
4 records

MAS 90LB

Terminated

Helianthus annuus L. · Sunflower

Maisadour Semences, FR

FR
2 records

NS-H-6059

Active

Helianthus annuus L. · Sunflower

Radic Velimir, Gvozdenovic Sandra, Jocic Sinisa,

UA
4 records

Kh 720 V

Active

Helianthus annuus L. · Sunflower

Brahin Oleksandr Mykolaiovych, Popova Ol`ha Andriivna, Kryvosheieva Olena Vatslavivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Makliak Kateryna Mykolaivna, Alad`ina Zoia Kyrylivna, Kyrychenko Viktor Vasyl`

UA
5 records

Greenino 1

Active

Helianthus annuus L. · Sunflower

Reinhard Bräuer

AT
2 records

Skh 51 A

Active

Helianthus annuus L. · Sunflower

Riabchun Viktor Kuzmych, Kryvoruchko Tetiana Mykolaivna, Leonova Nina Mykolaivna, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,

UA
3 records

Skh 1006 A

Active

Helianthus annuus L. · Sunflower

Petrenkova Vira Pavlivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Alad`ina Zoia Kyrylivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,

UA
2 records

NKARMONY

Protection expired

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

FR
1 record